91-144
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CITY OF CAMPBELL .
DEPT. OF PUBLIC WO
70 North First St. !
campbell, CA 95008
(408) 866-2150 i
Perait
No. C\ \ '- \4--4-
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ENCROACHMENT PERMIT
(for working in the
public right-of-way)
I..ued 7rl3/1 q I
Perait exp e. 'in t2 _.
X-R tile______.
Application Date~
Application expire. in 6 aos.
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APPLICATION - APpli~atio~ is hereby ..de for a Public Wort. Perait in accordance with C&apbell
Municipal Code, Section ~1.04. (Application expir.. in 6 aonths if perait not pulled)
A. Work addra.. or tra~' In the area of Lucot T'lay and ~oseI2arV Lane
B.
C.
Utility trench location
Nature of work: Install sanitary sewers to acco;nodate sentic svstem
abandonment".
Attach five (5) copies o~ a 4rawlnq .howing the location, extent end diaaneione of the work
The drawing shall show the relation of the proposed work to exi.tinq .urfaca end underground
iaprove.ents. When approved by the City Enqin..r, .aid drawing becoaas a part of this perait.
The General Conditions for all perait. are li.ted on the reveree .ide. Special Provi.ione for
this permit are listed below. Failure to abide by these conditione end provisions ..y result
in jab shut-dawn and/or forfeiture of Paithful Perforaence Bonds and cash depo.its. (See
General Condition. 1 and 2).
D.
E. An Ilppl1cation tee .u.t accoapany thia application. !hi. ia non-refundable.
Name of Applicant Hest Valley Sanitation District Telephone: 378-2M)7
Address 100 East Sunnvoaks Avenue. Camnbell. CA 95003
Is this work being done by the property owner at their own residence? ---ye. ____no
Complete and attach Workers' coapensation and Contractor Inforaation fora..
The Applicant/Permittee hereby agr.es by affixing their signature to this perait to hold the City
of
Campbell, its officers, agents and ..ployees free, .afe and harale.s froa any claia or de.end for
damages resulting troa the work covered by this perait.
and
The Applicant/Peraittee hereby acknowledges that they
back of th.s permit, and that they vill ora thei
ACCEPTED Preston R. Nichols
Applicant (peraittee) print
4-26-91
Date
PIEASE SEE THE PlANS At-ID GEOI'ECHNICAL REPORT TRA"J5:'lITIED HITH lETI'ER 0E' ATI1-TL 22,
NOTES: ALL WORK SHALL CONFORM WITH THE ATTACHED, APPROVED PLANS AND ALL APPLICABLE CAMPBELL 1991
STANDARD DRAWINGS AND CONDITIONS. R E eEl V E D
THE CONTRACTOR MUST HAVE THIS PERMIT AND APPROVED PLANS AND MUST IlEET WITH THE P.W. INSPECTOR ON
THE SITE AT LEAST TWO DAYS BEFORE STARTING WORX. JUL ~ ~ 1991
NOTICE MUST BE GIVEN TO PUBLIC WORXS AT LEAST 24 HOURS BEFORE RESTARTING ANY VORX.
Public WorbjfngjneerjnQ
SPECIAL PROVISIONS
_1.
Street shall not be open cut tor underqround installations. Mini.um cuts .ay be allowed
for connections or exploration hole.. Such cuts aust be soecificallv aooroved bv the
Insoector.
Pavement .ay be cut for underground installations and aust be re.tored in accordance with
the Utility Trench Restoration Standard Drawing.
Work to be staked by a licen.ed Land surveyor or Civil Engineer and two (2) copies of the
cut sheets sent to the Public Work Deptarta.nt before starting ~ork.
The hours of work are limited to outside the ho~rs of 7-9 .... .nd 3-6 p... for any work
affecting a tratfic lane. <;"'r'~' ;6:......,.~f::::,. U-+E:-D
C'~C:>l )~', 'T l00 O"F 7"t> ppr:z.ov/)\..- ~-of2-
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STANDARD
RECEIPT NO.
PLAN CHECK , INSPECTION
F~~.. " F.P. BOND, $100 MIN)
tor City eer ~
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AMOUNT
$ t6~~.co
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($50.00)
$100.00
$500.00
(100' or ENG. EST.)
(4' OF BOND, $500 MIN)
Cf
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PLAN CHECK DEPOSIT
BOND FOR FAITHFUL PERFORMANCE
CASH DEPOSIT
($200.00)
APPROVED FOR ISSUANCE
t: PWPERMIT
Revised 7/90
PUBLIC WORKS DEPT.
CITY OF CAMPBELL
JULY 31, 1991
PAGE 1 OF 2
CONDITIONS OF APPROVAL FOR ENCROACHMENT PERMIT NO. 91-144
ISSUED TO WEST VALLEY SANITATION DISTRICT
FOR INSTALLATION OF SANITARY SEWER MAINS AND SEWER SERVICES
ON LUCOT WAY; ROSEMARY LANE EAST OF WINCHESTER;
AUDREY AVENUE, OBURN TO VALE; AND,
WEST PARR AVENUE, WEST OF VALE
A. All existing public street improvements shall be protected from
damage.
B. All existing street survey monuments shall be referenced by a licensed
land surveyor/registered civil engineer and field notes provided to
City Engineer. All existing survey monuments shall be protected from
damage. Any damaged and/or disturbed monument shall be reinstalled or
reset to its original location by a licensed land surveyor/registered
civil engineer.
C. A construction traffic control plan and a construction schedule shall
be submitted to the City Engineer for review and approval for each
street a minimum of seventy-two (72) hours in advance of any scheduled
need to install the traffic controls. Construction traffic controls
for lane closures shall include electronic flashing arrow signs at all
times the closures are in effect.
D. Trench backfill material shall be as follows:
1. Rosemary Lane:
According to the geotechnical engineer's report, there were no
large rocks in the exploration pits. Therefore, the trenches may
be backfilled with native material in accordance with the detail
shown on page 6 of the plans, and in accordance with the
geotechnical engineer's report.
2. Lucot Way (including laterals in the vicinity):
According to the geotechnical investigation, 20% of this material
is comprised of rocks greater than 2.5 inches. The contractor
shall have the following two options:
Option A: Using a screen, remove the 2.5 inch plus material and
remove from site. The remaining material may be used
for trench backfill.
Option B: Remove all native material from the job site and use
approved import material that meets the City
specifications.
Permit 91-144
Page 2 of 2
Note: For both above options, the trenches shall be
compacted in according with detail shown on page 6 of the
plans and in accordance with the geotechnical engineer's
report.
3. Audrey and West Parr Avenues:
Backfill materials and backfill requirements for Audrey and
West Parr Avenues shall not be less than those applicable to
Lucot Way, above.
E. Trench Restoration
The trench shall be backfilled and resurfaced in accordance with
the detail shown on page 6 of plans. In addition to those
requirements, the following shall apply: the minimum asphalt
concrete backfill thickness shall be the existing asphalt
concrete thickness plus two (2) additional inches but not less
than three (3) inches total thickness minimum.
On Rosemary Lane, the new asphalt concrete cap, plus twelve (12)
inches on each side, shall be surface treated with a "rubberized
chip seal" material to match the existing rubberized chip seal.
On Lucot Way, Audrey Avenue and West Parr Avenue, the new asphalt
concrete cap, plus twelve (12) inches on each side, shall be
surface treated with a chip seal or slurry seal to match the
existing surface treatment.
F. Backfill material for installation of pipe under curb and gutter,
sidewalks, driveways or concrete slabs shall consist of a
sand/cement slurry, two (2) sacks of cement per cubic yard of
material. The material shall be vibrated in place to fill the
total cavities below the slabs without any voids. The backfill
and vibration shall be complete to the highest point of the
concrete slabs.
G. Any change in the plans or the specifications is subject to
review by the City Engineer.
H. "As-built" drawings shall be submitted to the City Engineer for
review. "As-built" drawings shall show sewer services installed,
F:91-144
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RECEIVi:D
JUL :~ ~J 1991
Public W ork8j fnginoering
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INC.
July 26, 1991
Project ll7-58A & 117-59A, CU-1038
File ll7-58A.OOI
RECEIVED
JUL 2 ~j 1991
RECEIVED
J U L 2 9 1991
WVSD
Public WorujEngineering
West Valley Sanitation District
of Santa Clara County
100 East Sunnyoaks Avenue
Campbell, California 95008
Attention: Mr. Preston R. Nichols, Senior Civil Engineer
RE: -R--VALUE TEST ON SUPPORTING SUBGRADE SOIL
FOR RESTORED FLEXIBLE PAVEMENT STRUCTURAL SECTION
FOR ROSEMARY LANE AND LUCOT WAY SANITARY SEWER
EXTENSIONS AND VICINITY OF LUCOT WAY LATERALS
CAMPBELL, CALIFORNIA
Gentlepersons:
Based upon our meeting at your office with the City of Campbell's engineers on
July 18,1991, we understand that a Traffic Index (TI) of 5.0 should be used in
design for the proposed restored flexible pavements on Rosemary Lane and Lucot
Way. We also understand that the restored flexible pavement structural section
proposed by the District will consist of 3 inches of Type B asphalt concrete
(AC(B)) and 12 inches of Class 2 aggregate base (AB(2)).
For TI of 5.0, the total gravel equivalent of AC(B) of 3.0" and AB(2) of 12.0"
i s 20.7 II (1. 7 3 I ) . Ac cor din g 1 y, the II R II - val u ere qui red for the sup po r tin g
subgrade soil, as shown on the attached Figure, is practically "zero."
We judge that properly compacted trench backfill using excavated on-site soils
will have an average "R" value significantly greater than "zero" or, based upon
our past expp.rience in the area, even greater than 20 to 30. For this reason,
we recommend that "R" value test is not necessary and therefore be waived.
Very truly yours,
AGE, I NC.
~1/j(2
{;l'l;{: Lin
Project Principal
Geotechnical Egnineer
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No. 526
BML/ JW: taj
1093 Hunterston Place, Cupertino, California 95014 Phone: (408) 973-1103 Fax: (408) 973-1017
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HIGHWAY DESIGN MANUAL
IICllViD
JUL 1~ 9 1991
600-33
Augult 6, 1988
Figure 608.4 .Public WorkaJEnlin..rinl
Flexible Pavement Structural Section Design
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20
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R : VALUE
G.E. = 0.0032 (TI) (lOO-R)
G,E. = Gravel Equivalent
T.I. 0= Traffic Index
R = Resistance Value or R-value
"00 East SunnvoaKs Avenue
:amooell. California 95008
-elepnone ,408) 378-2407
NEST 'iALLE'r' SANIT A ~;GN DiST~iiCT
:JFSANT/~ CLARA COUNTY
REC.'VE~
JUL :! fJ ,991
:ERVING RESIDENTS OF
~:~'( OF C,4,v'PBEL_
;-OWN OF LOS GA JOS
,';'( OF 'AONTE S!:'iENO
_" ;'"'1 C,'F'SARA TCc~
~NINCORPORA TED AREA
July 19, 1991
Public W orb! Engineering
Don Wimberly
Director of Public
City of Campbell
~O ~. First Street
Campbell, CA 95008
Works
Dear Don:
In the next few months the ulstrict will be undertaking two
septic system abandonment projects in Campbell: the Lucot \\ay
project, which will benefit 15 property owners, and the Rosemarv
Lane project, which will benefit 16 property owners. If the
district receives favorable construction bids, and a majority
of property owners are willing to participate, the district will
have the mains and all the juilding sewers installed.
As you ~now, the district's septic system abandonment program is
voluntary to property owners. It does not force property owner
participation as assessment district proceedings would. There-
fore, if there is insufficient property owner participation the
project or portions of it simply cannot be done, because the
district does not have sufficient funds to construct all the
septic system abandonment ~rojects reauested.
The district carefully designs each project, performs geotechnical
investigation, does trench compaction testing during construction,
performs daily inspections. and provides compaction test results
and workmanship certifications upon job completion. Every effort
is made to restore the project area to its preconstruction
integrity or better. Since the project depends on voluntary
participation, keeping the costs down is essential.
So please do not place total street resurfacing requirements or
unjustifiable-rees on excavation permits.
The district has \\'orked cl"o's-ery wi th ci ty staff for the upgrade
of public services. In the near future the district will provide
to the city a list of properties not connected to nublic sewers.
Prior to the city's pe~fo~ming street resurfacing ~ork or issuing
building addition permits, our agencies should make a joint effort
to get the unsewered properties connected.
I would be pleased to convene a meeting between our agency staffs
to discuss these issues.
Very tru
~a A. Gissler
( District Manager/;:~R~~R1[~~E~''JTY '3ANITATICN DIST;:l'CT NO. 4\
cc:
:-1ike Kotows ki
WEST VALLEY Sf\N!T Ti()!\J
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uf'l .. .JLhtlt\ lJUUi\j i
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Ci:trn phel i, Califonlld 950Ot;
Tpiept;'Hle (408) :3'/8. "';lO
I.CIIVIi.,
APR z ~ 1991
Public: W orkt, EnQinG.rin~
April 26, 1991
T",'~
Mr. Cruz S. Gomez
Project Manager
City of Campbell
70 North First Street
Campbell, CA 95008
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RE
Rosemary/Lucot Septic System Abandonment Project
Dear Chuck:
The location of the laterals for the above-referenced project
will be determined in the field during construction.
We anticipate that most of the adjacent properties will want
their lateral sewers installed. However, this will depend on the
property owners. attitude toward the project.
Very truly yours,
~
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by Preston R. Nichols
Senior Civil Engineer
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wi S~. I)",tot I- C.1~
William A. Gissler
District Manager/Engineer
PRN/mk
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OF SANTA CLAFi/\ CCHi~1J
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Carnphnli, C.'lI;T(Ji iil 9E;rjU,'
1 eiephoflP (4081 :J ifL'-!O
April 22, 1991
City of Campbell
Public Works Department
70 North First Street
Campbell, CA 95008
RE Rosemary Lane and Lucot Way Sewer Extension Project
(Including Lateral Sewers in Audrey, Vale and West Parr)
Gentlepersons:
With this letter, West Valley Sanitation District is requesting a
permit for the installation of sanitary sewers in Rosemary Lane and
Lucot Way (including lateral sewers in Audrey, Vale, and West
Parr). A major issue is the specifications for backfill material.
Our recommendations are as follows:
Rosemary Lane
According to the geotechnical engineer's report there were no large
rocks in the exploration pits. Therefore, the trenches will be
backfilled with native material in accordance with the detail shown
on Page 6 of the plans, and in accordance with the geotechnical
engineer's report.
Lucot Way (including laterals in the vicinity)
According to the geotechnical investigation, 20% of this material
is comprised of rocks greater than 2.5 inches. The contractor will
be given the following two options:
Option A: Using a screen, remove the 2.5 inch plus material and
remove from site. The remaining material can be used
for trench backfill.
Option B: Remove all native material from the job site and use
import material.
Note: For both above options, the trenches will be compacted in
accordance with detail shown on Page 6 of the plans and in
accordance with the geotechnical engineer's report.
Thank you for your cooperation.
Very truly yours,
William A. Gissler
District Manager/Engineer
by Preston R. Nichols
Senior Civil Engineer
. Pr..i,t~
INC.
March 13, 1991
Project 117-59, C-6096
File No. 117-59.001
West Valley Sanitation District
of Santa Clara County
100 East Sunnyoaks Avenue
Campbell, California 95008
Attention: Mr. Preston R. Nichols
RE: GEOTECHNICAL ENGINEERING INVESTIGATION
FOR THE PROPOSED LUCOT WAY SANITARY SEWER EXTENSION PROJECT
CAMPBELL; CALIFORNIA
Gentlepersons:
This report presents the results of our geotechnical engineering lnvestigation
for the proposed sanitary sewer extension along Lucot Way in Campbell,
Cal ifornia. The purpose of this investigation is to evaluate the subsurface
conditions in the project area and to provide recommendations concerning the
geotechnical engineering aspects of the proposed sewer development.
PROPOSED DEVELOPMENT
As presently planned, the project of the proposed sewer extension would consist
of installation of approximately 550 lineal feet of new 6-inch dicmeter sewer
pipe sections with invert at a depth of approximately 7 feet below the existing
street grade.
The proposed sewer would extend westerly along Lucot Way from an existing 6-inch
diameter sewer along Vale Avenue to the end of Lucot Way. Approximate location
of the proposed sewer line is shown on the Site Plan, Figure 1.
Open cut excavation is presently considered for the proposed sewer installation.
Excavation dEpth would average approximately 7.5 feet. The excavated trench
will be backfilled with 3/4-inch minus clean crush rock around the pipe and up
to a level of dt least 6 inches above top of the pipe, and the remaining trench
will then be backfilled with on-site soils and/or import structural fill, if
required, except for the area where pavement structural section is to be
constructed. The on-s i te soil sand/or import structural fill wii 1 be compacted
to a minimum of 90 percent relative compaction, except for its upper portion
located within the limit 24 inches below bottom of the proposed asphaltic
1400 Dell Avenue, Suite D, Campbell, California 95008 Phone: (408) 378-0350 Fax: (408) 378-7361
West Valley Sanitation District
Project 117-59, C-6096, March 13, 1991
concrete section, which will be compacted to a minimum of 95 percent relative
compaction. Additionally, a pavement structural section, consisting of 3 inches
of asphaltic concrete and 12 inches of Class 2 aggregate base, will be
constructed to complete the trench backfilling operation. Class 2 aggregate
base will will be compacted to a minimum of 95 percent relative compaction.
SCOPE OF WORK
The scope of work performed in this investigation included a site
reconnaissance, subsurface exploration, laboratory testing, engineering analysis
of the field and laboratory data, and preparation of this report. The data
obtained and analysis performed were for the purpose of providing design and
construction criteria for grading and earthwork, and trench backfill.
FI ND I NGS
A subsurface exploration was made on February 26, 1991 using a rubber-tired
backhoe equipped with a 24-inch-wide excavation bucket. A total of one (1)
exploratory trench was made to a maximum depth of 6.5 feet below the existing
street grade. Approximate location of the exploratory trench is shown on the
Site Plan, Figure 1.
The soils encountered in the trench were continuously logged in the field by our
representative and described in accordance with the Unified Soil Classification
System (ASTM-D2487). Two photographs presented on Fi gure 2 show the subsurface
soils exposed on the trench walls and excavated from the trench. Log of the
exploratory trench and a key for the soil classification are presented in
Append i x A.
Representative samples were obtained from the exploratory trench at selected
depths appropriate to the investigation. All samples were taken to our
laboratory for futher evaluation and testing. Laboratory testing consisted of
tests for n;;:;ural moisture content, grain size classification, Jnd compaction.
The results of the laboratory tests are presented on the tr~nch log at the
appropriate depth and in Appendix B on Figures B-1 and B-2.
The trench log shows our interpretation of the subsurface conditions on the date
and at the location indicated, and it is not warranted that they are
representative of subsurface conditions at other locations and times. The
stratification lines on the logs represent the approximate boundary between soil
types and the transition may be gradual.
A. SURFACE CONDITIONS
The site of the proposed sewer extension is essentially level and presently
covered with a pavement structural section which consists of approximately 1/4-
inch-thick oil screen surfacing.
117-59.001
AGE, INC.
Pa ge 2
West Valley Sanitation District
Project 117-59, C-6096, March 13, 1991
B. SUBSURFACE CONDITIONS AND GROUNDWATER
Subsurface materials below the existing oil screen surfacing, as encountered in
the exploratory trench, T-l, consist generally of brown, fine- to coarse-
grained, sandy gravels to the maximum depth explored of 6.5 feet below the
existing street grade. The results of the grain size distribution analysis
indicate that over 20 percent of the sandy gravels is larger than 2.5 inches.
The sandy gravels contain various amounts and variable sizes of cobbles.
Cobbles up to 4 inches were encountered in the upper surface 3 feet of the sandy
gravels, and below which cobbles up to 10 inches and some boulders up to 14
inches were encountered.
As indicated in the trench log, a minor caving was observed during trenching
below a depth of approximately 3.5 feet.
Free groundwater was encountered during excavation of the exploratory trench.
It should be noted, however, that fluctuation of localized perched groundwater
and regional groundwater level may occur due to variations in rainfall,
temperature, irrigation, construction related activity, and other factors not
evident at the time of our field investigation.
CONCLUSIONS AND RECOMMENDATIONS
From a geotechnical engineering standpoint, the primary considerations for the
proposed sewer installation are: (1) presence of over 20 percent oversize soils
-- larger than 2.5 inches -- within the proposed construction excavation; and
(2) potenital for caving during construction excavation as well as construction
operations using vibratory equipment.
Oversize soils, in excess of 2.5 inches in size, are not suitable for use as
trench backfill. If excavated soils are used as trench backfill, their oversize
sons should be removed prior to their use as trench backf"ill. One effective
mean~ of removing oversize materials from excavated ~oils is the use of an
adju.:)table screen shaker to screen out undesirable materials larger than 2.5
inches. Such method has been used successfully for several project
constructions in the past which encountered significant amounts of oversize
soils. In lieu of the on-site excavated soils, properly selected import
structural fill may be used to backfill the trench. The type of soil s that are
most suitable for use as trench backfill will depend upon the cost of the
construction and the time required to complete the work.
Proper shoring, in addition to meeting the State Safety requirements, should be
used to minize the potential for possible caving during construction excavation
and during backfilling operations using vibratory equipment.
The project site is suitable for the proposed sewer extension, provided that the
conclusions and the recommendations presented in this report are incorporated in
the design and construction considerations, project plans and specifications.
The opinions, conclusions and recommendations presented in this report are
117-59.001
AGE, INC.
Page 3
West Valley Sanitation District
Project 117-59. C-6096. March 13. 1991
contingent upon AGE, Inc. being retained to review the final design plans and
specifications, and to observe and provide adequate testing during the sewer
installations. The analysis and recommendations submitted in this report are
based upon our site reconnaissance together with the information obtained from
the exploratory trench made at the approximate location indicated on the Site
Plan, Figure 1. This report does not reflect any variations which may occur at
other locations. The nature and extent of variations in subsurface conditions
may not become evident until sometime during the course of construction. If
variations then appear, it will be necessary to reevaluate the recommendat-jons
presented in this report after making on-site observations during construction
and noting the characteristics of such variations. We assume no responsibility
for construction compliance with the design, specifications, or recommendations
unless we have been retained to perform on-site review during the course of
construction.
A. PIPELINE CONSTRUCTION
1. General
All grading and earthwork should be performed under the observation of
geotechnical engineer to assure proper site preparation, construction
excavations, as well as selection, placement and compaction of fill and backfill
materials. All earthworks should be performed in accordance with the recommen-
dations presented in this report.
2. Clearing and Site Preparation
Prior to earthwork operations, areas to receive pipeline should be cleared of
all deleterious materials and obstructions including asphaltic concrete pavement
sections and any buried utility and irrigation lines. Holes resulting from the
removal of underground obstructions below the proposed pipeline bearing level
should be cleared and backfilled with suitable material compacted to the
requi rements gi ven below under Item A.4., "Compa(~ i on."
3. Excavation
The results of our investigation indicate that conventional earthmoving
equipment would be suitable for the proposed pipeline excavation. Equipment
such as bulldozers, scrapers, loaders, and backhoes could generally work within
the excavation.
Proper shoring, in addition to meeting the State Safety requirements, should be
used to minize the potential for possible caving during construction excavation
and during backfilling operations using vibratory equipment.
117-59.001
AGE. INC.
Pa ge 4
West Valley Sanitation District
Project 117-59, C-6096, March 13, 1991
4. Compaction
All backfill should be placed in lifts not greater than 8 inches in uncompacted
thickness and compacted by mechanical means only to a minimum degree of
compaction of 90 percent of laboratory maximum density as determined by ASTM 0-
1557-78. Water jetting is not allowed. The upper surface 24 inches of the
trench backfill below bottom of the asphaltic concrete section should, however,
be compacted to a minimum degree of 95 percent relative compaction.
B. PIPELINE TRENCHES
We recommend that pipeline trenches be backfilled with compacted structural fill
in accordance with the requirements presented below:
1. Bediiing
Bedding material should be placed at least 6 inches below the planned invert
elevation, or to a sufficient depth required to provide a stable working
surface, whichever is thicker. The bedding material should extend at least 6
inches above the top of the pipe and at least 4 inches, but not to exceed 6
inches, from both sides of the pipe in order to provide adequate lateral support
and protection to the pipe during subsequent backfilling and compaction
opera t ion.
Pipe bedding should conform to the requirements presented in Section 200-1.2 of
the Standard Specifications of the County of Santa Clara for Public Works
Construction, latest edition. Pipe bedding should consist of clean granular
material. We recommend that 3/4-inch minus clean crush rock be used as bedding
material, and should conform to the following gradation:
Sieve Sizes
% Pass i ng
111
3/411
1/211
3/811
No. 4
100
90-100
30-60
0-20
0-5
Bedding material should be compacted to at least 90 percent relative as
determined by ASTM Test 0-1557-78.
2. Subsequent Backfill
2.1. On-Site Materials
The on-site soils excavated below bottom of the existing soil screen surfacing
are suitable for use as subsequent trench backfill, provided that they have
organic content of 2 percent or less by volume, and contain rocks or lumps less
than 4 inches in greatest dimension and less than 15 percent larger than 2.5
117-59.001
AGE, INC.
Page 5
West Valley Sanitation District
Project lI7-59, C-6096, March 13, 1991
inches. These materials should be placed in lifts not greater than 8 inches in
uncompacted thickness and compacted to a minimum of 90 percent relative
compaction. The upper surface trench backfill situated within the limit 24
inches below bottom of the proposed asphaltic concrete section should, however,
be compacted to a minimum of 95 percent relative compaction.
It has been discussed earlier that the soils excavated from the construction
excavation will contain over 20 percent ovesize materials larger than 2.5 inches
in size. These oversize materials should be removed from the excavated soils
prior to their use as trench backfill.
One effective means of removing oversize materials from excavated soils is the
use of an adjustable screen shaker to screen out undesirable materials larger
than 2.5 inches. Such method has been used success full y for several Di stri ctls
project constructions in the past which encountered significant amounts of
oversize soils.
2.2. Imported Soils
In lieu of the excavated on-site soils, imported soils may be used as trench
backfill. In addition to the preceeding requirements for "On-Site Materials" as
subsequent trench backfill, imported soils should be predominately granular with
a plasticity index between 4 and 12. Imported trench backfill should be placed
and compacted in accordance with the requirements previously outlined under Item
A.4., "Compaction." The upper surface 12 inches of trench backfill should
consist of Class 2 aggregate base.
2.3. Class 2 Aggregate Base
A minimum of 12 inches of Class 2 aggregate base is required beneath the
proposed asphal tic concrete section. Class 2 aggregate base should conform to
the minimum requirements presented in Section 25 and 26 of the California
Department of Transportation Standard Specifications, latest edition.
Class 2 aggregate base should be placed in lifts not greater than 8 inches in
uncompacted thickness and compi:1cted with mechanical means only to a minimum
degree of compaction of 95 percent relative compaction as determined by ASTM
Test 0-1557 - 78 .
LIMITATIONS OF INVESTIGATION
Our services consist of professional oplnlons and recommendations made in
accordance with generally accepted geotechnical engineering principles and
practices. This warranty is in lieu of all other warranties, either express or
impl ied.
This report has been prepared in order to aid in the evaluation of the proposed
sewer extension. In the event any changes in the design or location of the
improvements are planned, our conclusions and recommendations shall not be
117-59.001
AGE, INC.
Page 6
West Valley Sanitation District
Project 117-59. C-6096. March 13. 1991
considered valid unless the changes are reviewed and the conclusions of this
report modified or verified in writing by AGE, Inc..
The following figures and appendices are enclosed and complete this report:
Fi gu re 1
Fi gure 2
Site Plan
Photographs of Trench Exposure and
Excavated Soil s
Field Investigation
Key to Exploratory Trench Log (Figure A-I)
Exploratory Trench Log, T-l
Laboratory Testing
Grain Size Classification (Figure B-1)
Compaction Test Results (Figure B-2)
Appendix A
Appendix B
If you have any questions regarding our findings, please contact us.
Very truly yours,
AGE, INC.
"
>tf1:in /
Project Principal
Geotechnical Engineer No. 526
AR/BML :amh
(5 copies submitted)
Attachment
117-59.001
AGE. INC.
Page 7
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TRENCH NO. T-1
Trench exposure shows sandy gravels with cobbles and some caving
occurred during trench excavation.
Soils excavated from the trench, which consist of sandy gravels
with cobbles up to 10" and boulders up to 14:; over 20% soils
larger than 2.5".
FIGURE 2
West Valley Sanitation District
Project 117-59, C-6096, March 13, 1991
APPENDIX A - FIELD INVESTIGATION
The field investigation consisted of a site reconnaissance and a subsurface
exploration program performed on February 26, 1991. A rubber-tire backhoe
equipped with a 24-inch bucket was arranged by the District and used to explore
and sample the subsurface materials. One (1) exploratory trench was made to the
maximum depth explored of 6.5 feet below the existing street grade. Approximate
location of the trench is shown on the Site Plan, Figure 1. Exposed trench
conditions and subsurface conditions of the soils excavated from the trench are
shown in two photographs presented on Figure 2. The exploratory trench was
backfilled immediately after completion of our field investigation and covered
with cold-patch asphaltic concrete.
Soils encountered in the exploratory trench were continuously logged in the
field by our representative and described in accordance with the Unified Soil
Classification System (ASTM 0-2487). log of the trench as well as an
explanation of the soil classification system (Figure A-I) are included as part
of this appendix.
Representative soil samples were obtained from the exploratory trench at
selected depths appropriate to the investigation and were taken to our
laboratory for further evaluation and appropriate testing. Results of the
laboratory tests performed on the selected samples are presented in Appendix B
and on the trench log.
Changes in the subsurface condition may occur with the passage of time due to
natural processes and/or the works of man either on this or adjacent properties.
Thus the trench log shows our interpretation of the subsurface conditions on the
date and at the location indicated, and it is not warranted that they are
representative of subsurface conditions at other locations and times. Also, the
stratification lines on the log represent the approximate boundary between the
subsurface materials encountered and the transition may be gradual.
117-59.001
AGE, INC.
Page A-I
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PRIMARY DIVISIONS
GRAVELS Clean
more than half Gravels
of coarse (less than
fraction is 5% fines)
larger than Gravel
No.4 sieve with
fines
SANDS
more than half
of coarse
fraction is
smaller than
No. 4 sieve
Clean
Sands
(less than
5% fines)
Sands
with
fines
Group
Symbol
GW
GP
GM
GC
SW
SP
SM
SC
ML
CL
OL
MH
CH
PT
SECONDARY DIVISIONS
well graded gravels, gravel-sand mixtures
little or no fines.
poorly graded gravels or gravel-sand
mixtures, little or no fines.
silty gravels, gravel-sand-silt mixtures,
non-plastic fines.
clayey gravels, gravel-sand-clay mixtures
plastic fines.
well graded sands, gravelly sands, little
or no fines.
poorly graded sands or gravelly sands,
little or no fines.
l!lilty sands, sand-silt mixtures, non-
plastic fines.
clavey sands, sand-clay mixtures, plastic
fines.
inorganic silts and very fine sands, rock
flour, silty or clayey fine sands or clayey
silts with slight plasticity.
inorganic clays of low to medium plasticity
gravelly clays, sandy clays. silty clays.
lean clays.
organic silts and organic clays of low
plasticity .
inorganic silts. micaceous or disoma-
ceous fine sandy or siltv solls, elastic.
inorlZlinic clays of high plasticitv. fat clay s.
peat and other highly organic soils.
DEFINITION OF TERMS
U.S. Standard Series Sieve Clear Square Sieve O~n1ngs
200 40 10 4 3/4" 3" 12"
SAND GRAVEL COBBLE
SIL 1'8 & CLAYS fine I medium I I coarse BOULDE
coarse fine
GRAIN SIZES
SANDS, GRA VEl.s, STANDARD PLASTIC SILTS IUnconfined ~TANDARD
AND NON-PLASTIC PENETRATION AND CLAYS Compressive PENE TRA TIO ~
Strepgt\t.
SIL 1'8 1=\1 nu.., 1Ft t.on~ /~ Rl nUl<> 1ft
very loose 0- 4 very soft 0-1/4 0-2
loose 4-10 soft 1/4 - 1/2 2-4
medium dense 10-30 finn 1/2 - 1 4-8
dense 30-50 stiff 1-2 8-16
very dense over 50 very stiff 2-4 16-32
hard over 4 over 32
RELATIVE DENSITY CONSISTENCY
KEY TO THE EXPLORATORY TRENCH LOG
Unified Soll Classification System (ASTM :0-2487)
ASSOCIATED GEOTECHNICAL PROPOSED LUCOT WAY SANITARY SEWER EXTENSION PROJECT
ENGINEERS, INC. CAMPBELL, CALIFORNIA
Project No. Date FIGURE A - 1
San Jose, CalUornia 117-59 March 1991
SIL 1'8 AND CLAYS
liquid limit is
less than 50%
SILTS AND CLAYS
liqUid limits 1s
greater than 50%
HIGHLY ORGANIC SOILS
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West Valley Sanitation District
Project 117-59, C-6096, March 13, 1991
APPENDIX B - LABORATORY TESTING
The laboratory testing program was directed toward a quantitative and
qualitative evaluation of the physical and engineering properties of the
materials underlying the site to depths influenced by the anticipated foundation
pressures and the materials exposed at the sewer trench walls.
The natural moisture contents were determined on selected samples and are
recorded on the trench logs at the appropriate depths. Since water has a
significant influence on soil, the natural moisture content provides a rough
indicator of the soil's compressibility, strength, and potential expansion
characteristics.
One grain size distribution test was performed on selected sample and the
results are presented on Figure B-1.
One laboratory compaction test was performed on the selected sample of the on-
site soils and the results are presented on Figure B-2.
117-59.001
AGE, INC.
Page 8-1
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FIGURE B-2 - SUMMARY OF LABORATORY COMPACTION TEST RESULTS
DATE SAMPLE SAMPLE OPTIMUM OPTIMUM REMARK
OF MOISTURE
DRY DENSITY
NO. DESCRIPTION ( PCF) CONTENT CODE
TEST I It \
2/28/91 SANDY GRAVEL,
1 fine to coarse 138.4 8.3 OM
grained both,
with clays and
cobbles, brown
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EXPLANATION OF REMARK CODE:
OM: On-site Materials
TEST METHOD TESTED B~ DATE PROJECT NQ PAGE
ASTM D 1557 - 78 AGE March 1991 117-59 1 of 1
Form ( 5/19/81 )
ASSOCIATED GEOTECHNICAL ENGINEERS, INC,
San Jose, California
WEST VALLEY SANITATION DISTRICT
OF SANTA CLARA COUNTY
SERVING RESIDENTS OF
CITY OF CAMPBELL
TOWN OF LOS GA TOS
CITY OF MONTE SERENO
CITY OF SARA TOGA
UNINCORPORA TED AREA
100 East Sunnyoaks Avenue
Campbell, California 95008
Telephone (408) 378-2407
September 9, 1992
IlA:Ct:~~l t
.... ;-"
SEP 14 1SSZ
~Jic.wolblfQ9in~
Bill vick
vick's Pipeline
350 Marburg Way
San Jose, Ca 95133
RE: Rosemary Lane Sewer Extension V>~--u"\ ~ \44-
Dear Bill:
The City of Campbell is requesting that some areas of the
trench that are low be brought to grade.
The area is marked in green paint for easy location. If
there are any questions, please call me at the office.
Very truly yours,
3
Don Armstrong
Construction Inspector
/ cc: Chuck Gomez, City of Campbell Public Works
(FORMERl Y COUNTY SANITATION DISTRICT NO, 4)
WEST VALLEY SANITATION DISTRICT
OF SANTA CLARA COUNTY
SERVING RESIDENTS OF
CITY OF CAMPBELL
TOWN OF LOS GA TOS
CITY OF MONTE SERENO
CITY OF SARA TOGA
UNINCORPORA TED AREA
100 East Sunnyoaks Avenue
Campbell, California 95008
Telephone (408) 378-2407
January 6, 1993
,~~...;
RiCI
J~N 11 1992
Engineering
publiC W or"II
Vick's Pipeline
350 Marburg Way
San Jose, CA 95133
RE: Rosemary Lane (Our Job No. 1294)
Lucot Way (Our Job No. 1295)
Dear Bill:
Bill Kennedy and I conducted a bond final inspection on the
project on January 4, 1993 and found the following
deficiencies that require correction before the district
will authorize release of the bond:
Rosemary Lane:
1) Trench between manhole 2-56-61 and 2-56-3: Pave sunken
trench within areas outlined by green dots.
2) Manhole 2-56-61: OK
3) Manhole 2-56-3: Pave "low" area around manhole marked
by green dots.
4) Manhole 2-56-1: OK
Lucot Way:
1) Manhole 6-80-8: OK
2) Manhole 6-80-9 OK
3) Manhole 6-80-3: OK
When the work is scheduled, please call this office for
inspection.
Very truly yours,
~~
Construction Inspector
enclosures
cc: Bill Kennedy, WVSD
City of Campbellv
(FORMERLY COUNTY SANITATION DISTRICT NO, 4)
WEST VAL~EY SANITATION DISTRICT
---oF SM1TA C~ARA ccml'l"!
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WEST VAL~EY SANIT~TION DISTRICT
OF SAl:TA C~ cotn~!
Shee't #
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!)ate ~/~/93
9f~iL :~SPECT:ON RE~ORT
SAUITARY
S~1ER
:?ACT uo 6 1291 f(ose IHfJAY
~Olm'.AC-=CR V (t Ks PI 0 ,:>/i ~ E'
f
:~2 :=~:=wing :~ams c: work are ~= be
accep~a~c~ =f 3ani~~ry sewers. ?leasa
Sani~ati=n Distr:=~ when work :3 t= be
==:n;lat:ed befere
___. .<:._ r.tes- t1 ..'
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will be arranged.
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WEST VALLEY SANITATION DISTRICT
OF SANTA CLARA COUNTY
January 17, 1992
f\^i.I~.}If1E. R. LY~' nll.r'. .~..\."'/r,.,,';;w._.I~
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SERVING RESIDENTS OF
CITY OF CAMPBELL
TOWN OF LOS GA TOS
CITY OF MONTE SERENO
CITY OF SARA TOGA
UNINCORPORA TED AREA
100 East Sunnyoaks Avenue
Campbell, California 95008
Telephone (408) 378-2407
-..("
.,~
JIIN 2 " I,J
~f4lit: ..." 0 1992
0,."/1".,-
"II,
Bill Vick
Vick's Pipeline Construction
350 Marburg Way
San Jose, CA 95133
Dear Bill:
RE Rosemary Lane Septic System Abandonment Project
PE-(2.-Mli q l- \4-4-
Some of the oil and screenings did not hold. Another application
will be required. Particulars to this operation are as follows:
1. Do not place these oil and screenings until next spring when
it is warm.
2. Do not use the latex material from Richmond. Use regular oil
and screenings obtained locally.
3. The reach that needs oil and screening extends from the
downstream end to about 20 feet past the manhole, and is about
3 feet wide.
4. We will withhold $1,000 from the 10% retention. It will be
released in the spring after you have placed the oil and
screenings.
5. In the meantime,please have the area swept again, the loose
screenings are in the gutters.
Very truly yours,
William A. Gissler
District Manager/Engineer
by ~~~OlS
Senior Civil Engineer
cc: Cruz Gomez, City of Campbell
Joanna Miller, WVSD
Richard Urbach, WVSD
(FORMERLY COUNTY SANITATION DISTRICT NO.4)
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CITY OF CAMPBELL
MEMORANDUM
To:
Traffic Section
Date:
May 21, 1991
From:
~~
Cruz S. Gomez, Design & Construction Section
Subject: PERMIT NO. : 91-1 4 4, W. V . S . D .
TRACT NO. OR ADDRESS: ROSEMARY LANE, LUCOT WAY, AUDREY, VALE,
- - - - - - - - - - - - - _ _ _ _ AND WE S T PARR
-----------------------------------------
Please review the attached plans and return this form with your
comments to Cruz S. Gomez within five days. Return plans only if
necessary. Feel free to see me if there are any questions.
Thank you.
Attach: plans
CSG:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - -- - - - - - - - - - - - - - - - - - - - - - - - --
t/ No Comments k..'c..L
Comments: 'ReP~ PbJ'<:;h'~'lJT ~1'.:.v1~\NG, s ( bOLl'''';''2<'K(I....!~._) C..-:_'" ."--')
~ />..(7. "':."<i 1(--- .... '."?....\'e'<~_.\- _..';;;;'.:>:,;;;'., .:,,- ~:._..... c.'::, ~ (.~ ":-::S'\l'''~ <:"J.J.'c;;,\,' 's I'J
\.=::'-:::.r~. t;;;,..."",-_ c::;,..~\~;:::,. ,~t:::"~;, t" -,..?<":> ,
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Plans returned?
Yes
No
Signature
Date
f:CSG-FORM.l (mise forms)
MEMORANDUM
~Of l4<,,o8,,,
, ,
(J . ,.-
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CITY OF CAMPBELL
To:
Superintendent of Public Works
Date: May 21, 1991
From:
e-~~
Cruz S. Gomez, Design & Construction Section
Subject:
PERMIT NO. : 91 -1 4 4, W. V . S . P .
TRACT NO. OR ADDRESS: ROSEMARY LANE, LUCOT WAY, AUDREY, VALE,
AND WEST PARR
----------------------------------------------------------
Please review the attached plans and return this form with your
comments to Cruz S. Gomez within five days. Return plLns only if
necessary. Feel free to see me if there are any
Thank you. II" Ii! s' P'le f.h/"L'<)(' <- /1/L./",1' o1F'T"t-, j
\A) lfLQ lL 1 (,,~/:' 'e
Th€7 '!- ~I.::>el'--lj[,,:c/ ~f1I)/1('f:
I "I "
((~r--le~[J,,-C<=.\ 'f--'/"'-0
.<" '-',/1 i/ {,:.. '1/ ,c KT' I- "'~' '/ to.' /t, <.1'1.5" I
Attach: plans 3 'let lee {i v (- Lu~~d r.... r I '. / - S/ s'C./?f.1ci
,( ..7. .... I - I .. .r t, p F.<.J c~' ('" 1/2 t.:: A.-. c<:,,' 1f' e '-7YJ.clr-t'! It e j( t t 'f. t ";'
1'- ~:?:.J ~ t--( I. ~, .-
NG~~- : l,uh: L.:' ~~. V CeiLd SeC'-r: '1,I7/PC:'p/li~'j.;-: ,..,~ .5, L<. /V/ Y
CSG: ObI.:PIv.O;..Oo..YC'-0177APll L./'--I-C-.f1lj? :....!~,"A.ll/'-. y Ik.-7;1.e /7/21"".-1 c'.{'- Le.,.er
V ^l.b~ , ,/1 C. 'il.)CC"[ L.u (-0 {.,.j b€ //r:'!L){Jr7LA .~.! II\..- 1/v U,V l:"/'I.lf{;i.-ed ~
- - - - - - - - - - - - - - - - - .; - - - - - - i - - - - - - - -- - - - - - - - - - - - - - - - - - - - _ _ _ _ _ _ _ _ _ __ ~/2 ~"(::{ ~ (( Il .-1..'-
UIv'LQ.\s j/)Ck(~'i. \..'lVctf.'k' 00,:) rJf','L,l~J' <;(('/.. ~ //l:J /r
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pepL"Y p ,,,-, k-J~(~ ~
No Comments
Comments:
Signature
Date
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From:
ARE Job No.:
Project:
Subject:
ENGINEERING CONSULTANTS
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DESIGN. RESEM, _ /' ANAL YS/S . EVALUA TION
1 Victor Square, Suite G, Scotts Valley, CA 95066
(408) 438-7905
(408) 438-6074
Facsimile Transmission
Chuck Gomez. City of Campbel1, Engineering Division
(408) 379-2572
Margot Yapp
F96OO1-29
Ci1y of Campbell
Date: July 26, 1991
Total No. of Pages: 15
Specifications fur latex modified chip seal
Mr. Gomez:
Attached is a specification we recenlly received from the Town of Los Gatos for a latex modified
chip seal. The project engineer at the Town is Chris Gjerde (Tel: 354-6814). As I recall, they were
scheduled 10 begin work in late July or August If you are interested. 1 imagine you would be able
to conlact Chris and observe 1he work in progress.
I am not familiar with the la1ex modificd emulsiun specified herein. Aside from a few items, I think
this is a pretty good set of spccs. I wuuld, however, include some JaniUagc on the speed of the
pneumatic rollen used after the chips have been laid down to the effcct that speeds should be such
that chips will not whip off. To prevent whip olI. 1he rollers should be fairly slow - somewhere along
the Jines of a brisk walking pace. Finally, a 1/4 inch maximum size chip is specified. I understand
that this is typical for Santa Clara County. particularly where the County has performed the work
on residential streets. For coneetors or arterials. I would strongly sugges1 that the City consider a
318 inch maximum size chip. This would affect the application rates used . Chris may be able to
provide you with more information as 10 how they derive the application rates specified, and if a
design was performed.
Hope the attached is useful.
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1 Victor Square, Suite G . Seems Valley. California 95066 . (408) 438.7905 · FAX (408) 438.6074
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11..01. ~
11-02.
11-03.
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All work shall be done in conformance with the applicable provisions of the
Standard Specifications except as modified herein. Payment for work, equipment
and materials not specifically covered herein shall be included in the payment for
related items of work. No additional payment will be made for work, equipment
or materials not covered in these plans and specifications, but necessary to insure
a completed project as specified.
This item consists of preparatory work and operations, including, but not limited
to, those necessary for the movement of personnel, equipment, supplies, and
incidentals to the project site; for the establishment of all offices, buildings and
other facilities necessary for work on the project; and for aU other work and
operations which must be perfonned or costs incurred prior to beginning work on
the various contract items on the project site.
Payment for Item No.1 - Mobilization shall be made at the contract LUMP SUM
price, complete, and no additional payment will be made therefore.
MNO 2..
o
This item includes all work, equipment, and materials necessary to provide
temporary delineation, no parking signs, towing, construction signage, flaggers and
all other necessary items as directed by the Engineer.
The provisions in this section will not relieve the Contractor from his/her
responsibility to provide such additional devices or take such measures as may be
necessary to comply with the provisions in Section 7..1.09, "Public Safety" of the
Standard Specifications.
Traffic control shall be coordinated for the minimum inconvenience and maximum
safety of the public during the construction period. Contractor shall maintain traffic
circulation at all times during the chip sealing operation. C18 or C23 warning signs
shall be placed in front, behind and on both sides of the area to be coated before
any oil is spread. Flaggers will be required as directed by the Engineer.
The Contractor shall bear full responsibility for maintaining traffic control during
the construction period.
The Contractor shall furnish all traffic control equipment, signs, and barricades
necessary to complete the project.
The Contractor shall have a detailed plan for traffic control approved by the
Engineer seventy-two (72) hours in advance for each chip seal operation location.
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SECTION 11 - TEeHNI L PROVISIONS
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Tempora~ Delineation
Temporary delineation shall consist of reflective tabs spaced no more than twelve
(12') feet apart on curves, no more than twenty-four (24') feet apart on tangents.
Reflective tabs shall be applied in accordance with the manufacturer's instructions.
Temporary delineation shall be the same color as the permanent delineation.
Mo ParIgna Sips~winl
No parking signs posted by the Contractor shall be of heavy card stock and not less
than 1.75 square feet of surface area on the face. Background color shall be white
and letters shall be printed in red water resistant ink except that day, date, and
time of restriction may be printed in black water resistant ink. The signs shall be
printed with the words "Tow Away" and "No Parking" with a character height of not
less than 2.7S inches and a stroke width of not less than 0.5 inches. The day, date,
and time of the particular restriction shall be printed or attached below the above
mentioned wording in characters of not less than two (2") inches in height and four-
tenths (0.4") inches in stroke width. The day of the week shall be written out or
properly abbreviated with three (3) to four (4) letters; month shall be written out
or properly abbreviated with three (3) to four (4) letters; date or dates of restriction
shall be listed completely; the beginning and ending times shall be clearly listed on
the sign.
Signs shall be mounted such that the words, 'No Parking' are at an elevation at
least three (3') feet and not more than seven (7') feet above the adjacent flowline.
Signs may be tied with string to trees and power poles, taped to existing sign poles.
or mounted to'stakes or barricades as provided by the Contractor. The signs shall
be placed as needed to control the parking of cars within the construction zone;
signs shall be placed at intervals of seventy-five (75') feet or less along each side
of the roadway.
Signs shall be posted and maintained by the Contractor for a period of forty-eight
(48) hours prior to the restrictions becoming effective. The Contractor may only
post parking restrictions which are effective for the day of seal coating and the final
day of the maintenance period. If it is not possible to perform seal coating on the
day posted, the Contractor shall remove signs, rescbedule the work, and post new
signs no less than forty..eight (48) hours prior to the rescheduled work. Upon
completion of the maintenance period, all signs, stakes, and barricades shall be
promptly and completely removed and disposed by the Contractor, The Contractor
shall promptly reset or replace all damaged or defective signs.
Tbe Contractor shall be fully responsible for the adequate removal of all parked
cars. All vehicle removal sball be coordinated by the Contractor with the Police
Department. The Contractor shall notify the Police traffic sergeant at 3~4-6851
upon posting of the parking restrictions for a particular street. For removal of
parked vehicles, the Contractor shall notify tbe Police traffic sergeant not less than
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SEcrION 11 ~ TECH: ;AL PROVISIONS
3
two hours prior to the needed removal with the address nearest the parked vehicle,
delay or additional cost associated with the removal of parked cars which obstruct
the construction operation.
/
If a vehicle owner successfully contests a towing citation in court, and their citation
is dismissed for causes related to the Contractor's failure to perform the
requirements of this section, the Contractor shall reimburse the Town for the cost
of any claims associated with the towing citation.
I
ConstnJction Si~!I
Full compensation for fumishina, installing, maintaining, and removing construction
area sip as required. as shown on the Standard Plans, as specified in the Standard
Specifications, and these Technical Provisions, and as directed by the Engineer,
shall be considered as included in the contract price paid for traffic control. and
no separate payment will be made therefor.
On two.lane streets, C6 ''Loose Gravel" and W6 ''25mph'' speed advisory ~ign!;
shall be furnished and placed adjacent to both sides of the traveled way where
screenings are being spread on the traffic lane. The first Cn ~ign in each direction
shall be placed approximately 100 feet in advance of where traffic first encounters
loose screenings, regardless or which lane the screenings are being spread on. The
siiI1S shall be placed at maximum SOO..foot intervals along each side of the traveled
way, at all public roads or streets enterini the chip s.eal area, and as directed by
the Engineer.
The C6 and W6 signs shall be maintained in place at each location until final
sweeping of the chip seal surface at that location is performed. When no longer
required, the signs shall be removed from the site of the work. The signs may be
set on temporary portable supports with the W6 below the C6 or on barricades with
the W6 sign alternating with C6 sign.
All streets which are dosed to public traffic shall be siined with on! or more C3A
"Road Cased To Thm Traffic" signs sufficiently in advance to allow through traffic
to detour. No streets shall be closed except for such cases when an adequate
detour plan has been approved by the Engineer and properly implemented by the
Contractor.
Resident Access
The Contractor shall notify property owners about planned work not less than
seventy-two (72) hours in advance and shall make all necessary arrangements to
provide, at his expense, vehicular access to driveways, parking areas, and private
properties. .
The Contractor shall distribute a Town-furnished notification letter to residents of
the project area not less than seventy-two (7Z) hours in advance of work.
Driveway access restrictions may not exceed the time period strictly necessary for
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SECTION 11 - TECHNIC .. PROVISIONS
4
11-04.
perfonning the work which cannot be done othenvise.
It will be the Contractor's responsibility and expense to furnish and post signs
where necessary to inform the property owner about closures or restrictions at
parking area entrances.
Payment for Item No.2 . Trame Control shall be made at a ratio of the Conuact
LUMP SUM price equal to that ratio reflecting the completeness of the project as
determined by the Engineer and shall include paymellt for all signs. temporary
delineation. flagers. and all other necessary traffic control work provided for the
project complete and no additional payment will be made therefore.
yeneral
This item consists of furnishing all work. equipment. and materials necessary to
perform all protection of existing improvements. preparation of the roadway, dust
control, storage of materials and excess screenings, application and purchase of
asphaltic emulsion and screenings, rolling, finishing and sweepin2,
Chip seal shall conform to Section 37 and all applicable sections of the Standard
Specifications except as modified herein.
The work to be done in general, shall consists of furnishing all labor, materials,
tools. and equipment necessary to chip seal various Town streets and perform other
related work as necessary to provide a complete project; all in accordance with the
Standard Specifications, and these Technical Provisions.
Such other items of work or details not mentioned above that are required by the
Standard Specifications or these Technical Provisions. shall be performed, placed,
constructed and installed. -
Any plan or method of work suggested by the Owner or th! Engineer to the
contractor but not specified or required. if adopted or followed by the Contractor
in whole or in part. shall be used at the risk and responsibility of the Contractor;
and the Owner and the Engineer shall assume no responsibility therefor and in no
way be held liable for any defects in the work which may result from or be caused
by use of such plans or method of work.
PJVtectlon Of Existlnw1mprovements
All raised pavement markers, vaults, cleanouts. manholes, and other utility facilities
shall be protected by he Contractor prior to seal coating. The Contractor shall be
responsible for removing all oil and chips which are coverings within four (4) hours
after completion of the seal coat. The Contractor shall be responsible for the
breaking loose of any lids and covers as necessary to adequately install protective
coverings.
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SECTION 11 - TECHNIC. PROVISIONS
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b'eparation
Cleaning of pavement prior to spreading a...phaltic emulsion shall be by means of
a self-propelled mechanical pick-up sweeper of a type approved by the Enpneer.
The sweeper shall be equipped with gutter brushes and pickup brush.
Dust Control
The Co~tractor shall provide means to prevent dust, grit and other waste products
from becoming a nuisance in and around the working areas. Tbe Contractor shall
take such stepSt with the approval of the Engineer, to reduce or eliminate such
nuisance. The Contractor shall control dust during the entire contract period,
including holidays and weekends.
Water required for controlling dust caused by Contractor's operations and the
passage of traffic through the work shall be applied as directed by the Engineer.
If the Contractor fails to control dust in accordance with these Technical Provisions,
the City reserves the right to hire another contractor or agency to perform this work
on a "force accountl' basis.
Total cost for performing this work will be deducted from the total contract price
at final payment.
Section 10-1.04, "Payment" of the Standard Specifications is deleted. Full
compensation for dust control resulting from Contractor's perfonnance of the wurk,
either inside or outside the right-of..way, and caused by public traffic shall be
considered to be included in the various contract items of work and no separate
payment will be made therefor.
Stomp
The Town has made no provision for the storage of construction materials and
equipment at the site except, as noted in the paragraph below. The Contractor
sball be responsible for providing a storage site for his materials and equipment.
The Town will allow the Contractor to store equipment and materials in me
parking lanes adjacent to the work at locations designated by the Engineer, These
areas shall be used only for temporary storage of materials and equipment to be
used during the following work day. These areas are to b~ clearly closed to traffic
by the Contractor through the use of temporary delineators and barricades. The
Contractor will be responsible for cleaning these areas each work day and for any
damage caused to public improvements.
Materials
No materials shall be incorporated into the project without first presenting evidence
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SECTION 11 - TECHNIC. PROVISIONS
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of testing. and complying with release procedures. .at WIthOut first submittini a
Certificate of Compliance with the delivered materials.
Any attempts to incorporate materials without certified release tags. or acceptable
Certificates of Compliance. shall be just cause for immediate suspension of the
constroction operation involved.
All untagjed or noncertified materials that are placed or installed in the project by
the Contractor or Contractor's subcontractor shall be considered as placed or
installed at the Contractor'S own expense.
Materials incorporated in the project without the required release tags or
Certificates of Compliance shall be removed, if directed by the Engineer, by the
Contractor at no cost to the Town.
All screenings and emulsion shall be accompanied by a load slip for each truck
signed by a weighmaster. Load slips shall conform to section 9-1.01 "Measurement
and Quantities" of the Standard Specifications and these Technical Provisions. All
such load slips shall list the location of weighing, type of material loaded in the
truck, gross weight of the load and vehicle, tare weight of the vehicle, and the net
weight of the material for contract payment. The load slips shall be provided for
each load as it is delivered to the spreading operation and incorporated into the
work.
If directed by Engineer, a maximum of one on.site sample of screenings and one
on-site sample of asphalt emulsion shall be tested by the laboratory for compliance
with the Standard Specifications and these Technical Provisions. This testing shall
be in addition to the above required release tags or Certificates of Compliance and
shall be paid for by the Contractor. Compensation for this testing shall be
considered to be included in the contract price paid per square foot for chip seal
and no additional payment will be made therefor.
A. Screeninas
Seal coat screenings shall be tine \" x No. 10 and shall conform to the
provisions in Section 37-1 "Seal Coats" of the Standard Specifications and these
Technical Provisions.
The Contractor or Supplier shall provide to the Engineer a Certificate of
Compliance and evidence of adequate testing for all screenings incorporated
into the worle.
B. Asphalt Emulsion
Bituminous binder shall be cationic type latex modified emulsion grade LMCRS
1-1/2 h.
The latex modified asphalt emulsion shall conform to the following require-
ments when tested in accordance with the specified test method.
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'SECTION 11 - TECHNIC.. ~ PROVISIONS
7
===.=._==~==E.===~=~===:===~..=...=.==.
TEST TEST METHOD REQUIREMENTS
.===.~=.=~==-==.-=..~=======~.....====.
Viscosity @ 1220F AiSlITO T 59 75-300 sec.
Settlement, 5 days ~ ~SHTO T S9 5% Max.
Storaie Stability AASHTO T 59 1 % Max.
Sieve AASlITO T 59 0.3% Mox.
Demulsibility AASHTO T 59 40% Min.
Particle Charge Positive
Ash Content ASTM D 3723 0.2% Max.
Test on Residue
By Drying:
Penetration @ TFF
Ductility @ 7~ F
Percent Residue
Torsional Recovery
AASHTO T 49
AASHTO T S 1
California Test 331
California Test 332
40 - 90
40 em Min.
65% Min.
18% Min.
The robber latex shall be added to either the asphalt or the emulsion at
their locations of manufacture.
The robber may be either neoprene or a blend of butadiene and styrene.
Samples of latex modified asphaltic emulsion, delivered to the project, will
be taken from the spray bar of the distributor truck at mid-load.
The temperature of the latex modified asphaltic emulsion at the time of
application shall be between 1300F and 18O"F. I .u...r
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The Contractor or Manufacturer shall provide the Engineer a Certificate
of Compliance for all Asphalt Emulsion incorporated into the work.
The application rate for latex modified asphaltic emulsion shall be between ~ cW;'" ?
0.20 gallon per square yard and 0.22 gallon per square yard unless otherwise) 4I1"'~.(( ,
designated by the Engineer.
AsphaltiC! Emulsion AopliC!ation
The application of asphaltic emulsion shall not commence on any street until the
entire street pavement surface, including shaded areas, has reached a surface
temperature of 800 F and the atmospheric temperature is above 65e F. The street
surface shall also be completely dry before the application of asphaltic emulsion.
The Contractor will not be allowed to seal coat around any shaded or moist' areas.
No claims for damaae will be allowed by the Engineer for any delays caused by this
requirement for surface temperature, ambient temperature, or wet pavement.
Paragraphs 6 and 7 of Section 37-1.05 "Apply Asphaltic Emulsion" of the Standard
Spepifications which maybe reference to force account compensation for show-up are
hereby deleted.
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SECTION 11 . TEcm,......AL PROVISIONS
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If temperature requirements are consistently below the required values at 8:00 am,
the Contractor may request that the Engineer adjust the spreadinj hours. Th.
Engineer will consider the effects of any change on traffic, parlcini, and sweeping;
adjustments to the spreading hours shall be made at the sole discretion of the
Engineer.
The temperature of the asphaltic emulsion-rubber latex binder, at tbe time of
application. ~ha1J he between 130aF and 180"F.
The application rate for asphaltic emulsion.rubber latex binder shall be between .20 ,~ f} , "Z. "-
gallon per square yard. The exact rate will be determined by the Engineer, The
asphaltic emulsion shall be applied by spreader truck equipped with a computerized
rate control spray bar free from leaks and in good mechanical condition capable of
attaining the spread requirements and tolerances of Section 37..1.05, Paragraph 10,
as may be determined by California Test 339.
All spreads shall start and stop on building paper, or similar material, at least 30 ~,.,....
inches wide. All manholes, grates, drain inlets. valve covers, and vaults shall be
covered with paper prior to spreading emulsion. Gutters, cross gutters, sidewalks,
walls, standpipes, and other exposed structures, shall be protected to avoid beins
covered with emulsion. Any overspray or excess asphaltic emulsion especially on
gutters, cross gutters, or other pedestrian areas, shall be removed as soon as practical
or as directed by the Engineer. If not practical to remove immediately and if the
overspray or excess emulsion is on areas exposed to pedestrian or vehicle traffic, a
'sand blotter coat or other means shall be applied to prevent transfer of the emulsion
to pedestrians or vehicles. Longitudinal gutters shall not be coated with emulsion
more than 0.1 foot from the edge of asphalt; all excess shall be removed immediate-
ly.
Compensation for liquid rubber latex additive shall be considered to be included in
the contract price paid per square foot for chip seal and no separate payment shall
be made therefor. .
Certified weigh tickets shall be presented to the Engineer or Inspector upon arrival
of each load of emulsion to the project site.
Screeninls ApgUl!Stion
ScreeniniS shall be applied in accordance with Section 37.1.06 "Spreading of
Screenings" of the Standard Specification.1\ and these spedal provisions.
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The application rate for screening shall be between 17 pounds per square yard and J't a J.". ?
22 pounds per square yard. The exact rate shall be determined by the Engineer. ~r &.It..~iI .
To verify consumption of screemnis and spread rate, the Contractor shall submit a
certified load slip to the t!ngineer or Inspector for each unit of screenings as it is
delivered to the spreaders. A unit shall be considered as one truck or trailer of
screeniniS, for convenience each unit of a truck and trailer may be shown separately
but on the same weigh slip.
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SEcnON 11 .. TECE' :AL PROVISIONS
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Screeninp shall be applied to the emulsion prior to breaking of the emulsion or (.,~ ...
within 30 !1Ieconds of emulsion spread, which ever is first. rf .f/4a,.-:;
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The chip spreader shall be equipped with a pulling device. ... J 0..,....- "",.......
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To expedite chip removal, the Contractor will be allowed to deposit sweeper loads
at various central locations within the public right-of-way of the project site. these
sites must be approved by the Engineer during the time of traffic control plan
approval, seventy..two (72) hours prior to the commencement of work.
The Contractor will be required to post the parking lanes for no parking, pla.ce
necessary traffic control equipment, deposit sweepings only within the parking lane,
and remove all sweepings by 5:00 pm of each day, The sweepings shall not obstruct
driveways or be of such a height to obstruct visibility. The Contractor shall water
sweepiniS as necessary to control dust. H the Contractor fails to maintain the
sweeper dumps in an orderly fashion, or fails to remove all chips by 5:00 pm each
day and leave the site in a clean condition each day; the Engineer will require the
Contractor to deposit all sweeper loads at a location off the Town Right-of-Way as
provided by the Contractor for the balance of the contract. All such removal shall
be at no additional expemie to the Town.
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In addition to the above requirements, the Contractor shall perform all other
cleanup, necessitated by the Contractor's operations, including but not limited to,
debris loosened from construction equipment, tire track markings from oil, chip, dirt
and mud in the project site, adjoining areas and haul and access routes in public
streets.
Full compensation for conforming to the provisions in this section, not otherwise
provided for, shall be considered incidental to the various contract items of work,
and no additional compensation shall be allowed.
Fini!hfna
After the screenings have been spread upon the asphaltic emulsion, any piles, ridges,
or uneven distnbution shall be carefully removed to insure against permanent ridges, 11I1.1
bumps or depressions in the completed surface. Additional screenInp shall bejl +71' './.10"'"
spread in whatever quantities that may be required to prevent rollers or traffic from ~~~.!..,
picking up the seal coat materials, after which the surface shall be rolled. II''':~.''; .,
Unless otherwise directed by the Engineer, new seal coat surfaces shall be
maintained, including the traffic control required for maintenance operations, for a
period of four (4) consecutive working days beginning on the day screenings are
applied to the asphaltic emulsion. Maintenance of the surlace shall include
broominl and the distribution of screenings over the surface to absorb any free
bituminous material, to cover any area deficient in cover coat material and to
prevent formation of corrugations. Clean sand may be used in lieu of screenings
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SECTION 11 - TECH! ...AL PROVISIONS
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to cover any excess of asphaltic emulsion which comes to the surface. The use of
roadside material for this purpose will not be permitted.
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Rollers shall be pneumatic-tired type. A minimum of two (2) pneumatic-tired rollers
conformina to the provisions in section 39-5.02, "Compacting Equipment", shall be
furnished Additional rollers shall be added when the required two rollers are not
able to properly seat the aggregate screenings.
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Initial rolling shall consist of one complete coverage and shall begin immediatel~-' j ~r"-.;7 :"
behind the spreader. Asphaltic emulsion and screenings ~hall not he ~pread more ~.., ~. "r'
than 1,000 feet ahead of completion of initial rolling operattOn5. Secondary rolling. ,"
consisting of a minimum of ~o (2) complete coverages, shall begin inunediately after. l'
completion of the initial rolling. The amount of secondary rolling shall be sufficient, Y't.s ~
as determined by the Engineer, to adequately seat the screenings. \.J~,J ~
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Brooms for finishing and maintaining seal coat screeniniS $hall he the !;elf.propelled ~ Jt;";
pick-up type. when brooming is required adjacent to curh!ii, gutters. dikes, berm. p,...,1 lJ"~
railings or othif barriers which would prevent loose screenings from being swept (:..,r. I.....
completely off the roadway, the self.propelled brooms shall also be capable of ~: ~f)
removing the loose screenings from the surface during brooming. ~"'..",tll'
The surface of the seal coat shall be broomed as often as necessary, during the four
(4) working day maintenance period to maintain the surface free of loose screenings.
At the end of the four (4) consecutive working day maintenance period. any excess
screenings shall be removed from all paved and unpaved areas, all excess screen.ings
shall be removed from the right of way and become property of the Contractor.
Srooming of seal coat surfaces shall be performed in such a manner that the
screenings set in the asphaltic. emulsion will not be displaced.
The exact time of beooming will be determined by the Engineer. As a minimum,
broomings will be required at the approximate times:
1. On two (2) lane two-way roadways, from two (2) to four (4) hours after traffic
has been routed on the seal coat. All loose screenings shall be completely
removed at this time.
2. As a first order of work on the morning following application of screeniniS,
on any lane that has been opened to uncontrolled public traffic. Pnrkinl
restrictions shall not be posted and sweeping shall be performed in traffic
lanes and around parleed cars.
3. As a first order of worle on the second morning following application of
screeninp, on any lane that has been open to uncontrolled public traffic.
Parkina restrictions shall not be posted and sweeping shall be performed in
traffic lanes and around parked cars, This sweepini may be deleted by the
Engineer If the traveled lanes are free of loose chips.
4. At the end of the four (4) working day maintenance period. Parking
restrictions shall be posted and the entire roadway shall be swept clean of
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SECTION 11 - TECH! -AL PROVISIONS
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were not removed by the power sweepers. Chips shall also be removed from
parkways, driveways, sidewalks, and other areas within the street right-of-
way.
When directed by the Engineer. excess screenings shall be salvaged and stockpiled
at designated locations. Excess screenings which in the opinion of the Engineer arc
not salvable and which interfere with draina.ge shall be removed and di$posed of in
accordance with the provisions in Section 7..1.13. "Disposal of Material Outside the
Highway Right.of-Way". or if permitted by the Engineer, along embankment slopes
or at other suitable locations.
The completed surface shall present a unifonn appearance and shall be free from
ruts, humps, depressions, or irregularities due to an uneven distribution
of asphaltic emulsion or screenings.
PQymel\l
Payment for ITEM NO.3- CHIP SEAL shall be made at the Contract UNIT
PRICE per square foot complete. in place, accepted and no additional payment shall
be made therefore.
The work covered by this section includes furnishing all work. equipment. and
materials necessary to install new striping and pavement messages in accordance with
these specifications.
Strloinl
Shall be done with J.E. Bauer Paint Company No. 2466-A-9 White. No, 2467-A-9
Yellow, No. 2468-A-9 Black or approved equai. ;.') , !y...i6V-t.
",
Paint shall be applied only on thoroughly dry and clean surfaces and during periods
of favorable weather. Painting will not be pennitted when the atmospheric
temperature is at or below 350F. or when freshly painted surfaces may become
damaged by rain, fog, or condonsation or when it can be anticipated that the
atmospheric temperature will drop below 35t.tp during the drying period. II fresh
paint is damaged by the elements, it shall be replaced by the Contractor at hiS/her
expense.
Any existing striping and pavement messages damaged during construction of this
project and any damage to newly painted stripes or messages due to the failure of
C?Id 200
'JNI '3'~'~ ~L09 88~ 80~
8S:~I 92-LO-ISSI
1
SECTION 11 - TEeI .CAL PROVISIONS
12
the Contractor to protect his/her work shall be repaired by the Contractor at no
additional cost to the Town.
Contractor shall, prior to the actual work, tie out all existing striping. Premarkini
(cat tracking) shall be required for repainting traffic Striping and pavement markings.
The Contractor shall notify the Engineer. 24 hours in advance, for inspection and
approval of the premarking prior to painting of the~e items.
Striping and messages shall include the application of two coats of traffic paint with
&lass beads incorporated in the second coat of paint.
Application rates of traffic paint and beads shall be as follows:
aroken stripa
First Coat
Second Coat
Glass Beads
Rate of 6lmlication per 4-Jnch Wiath
4 to 5 gallons per mile
7 to 7.4 gallons per mile
42 pounds per mile
Solid Strip;
Rate of A,pplication per 4-lneh Width
First Coat
Second Coat
Glass Beads
12 to 14 gallons per mile
16 to 18 gallons per mile
100 pounds per mile
Rate of ApplicatiQn
75 to 85 square feet per gallon
16 square feet per pound
Roadw~ MatiWJi
Paint (each coat)
Glass Beads
The method of paint and bead -application shall be approved by the Eniineer.
The completed stripes and pavement messages shall have clean and well defined
edges. Pavement messages shall conform to the shapes and dimensions of the Town
standard stencils.
Any overspray or tracking of fresh paint to unpainted surfacing shall be removed by
sandblasting or other methods ,to the satisfaction of the Engineer at no additional
cost to the Town.
Payment for Item ljo. 4 .. Dou~l~ow CentmiJu: shall be made at the contract
UNIT PRICE bid for this item per linear foot in place. complete. accepted and no
additiOnal payment will be made therefore.
Payment for Itftm No. ! .. 4" Stripes shall be made at the contract UNIT PRICE bid
for this item per linear foot in place. complete. accepted and no additional payment
will be made therefore.
Payment for Item No.6.. ",. & 8" Strlp~ shall be made at the contract UNIT PRICE
Eld 200
'~NI .~.~.~ ~l09 grtr 90tr
00:51 92-l0-1bbl
I
t7ld GOO
SEcrION 11 - TECl-: :AL PROVISIONS
13
bid for this item per linear foot in place, complete, accepted and no additional
payment will be made therefore.
Payment for Jtem No. 7 - 12" Strip-=s shall be made at the contract UNIT PRICE
bid for this item per linear foot in place, complete, accepted and no additional
payment will be made therefore.
Payment for Item No.8. Pavement Messawe' shall be made at the contract UNIT
PRICE bid for this item per each in place, complete, accepted and no additional
payment will be made therefore.
11..06.
The work covered by this section includes furnishing all work, equipment. and
materials necessary to install new pavement markers in accordance with these
specifications.
Funtisbini and installing pavement markers shall conform to Section 85, "Pavement
Markers", of the Standard Specifications and these Technical Provisions.
Markers included in this section include types A, A y, C, D, G, H, and two-way blue
reflective fire hydrant markers as directed by the Engineer in the field.
Existing markers not directed for removal, but damaged or removed by the
Contractor, are not included in this section. Any markers removed or damaged by
the Contractor without direction from the Engineer shall be replaced in kind at no
expense to the Town.
The Engineer may direct the Contractor to remove any existing raised pavement
markers prior to seal coating. All markers removed as directed by the Engineer
shall be replaced by new markers during striping operations.
Pavement markers shall be installed when directed by the Engineer after the traffic
stripes have been painted. The traffic stripes shall be used by the Contractor as tbe
control line for the installation of the markers.
All additional work necessary to establish satisfactory lines for markers shall be
performed by the Contractor.
The provisions of Section 85 - 1.03 "Sampling, Tolerances and Packaging" of the
Standard Specifications shall not apply.
Rapid Set Type adhesive shall be used to cement the markers to the pavement.
Contractor shall replace, at Contractor's expense, improperly installed or mislocatcd
new reflective markers. Any damage done to newly installed pavement markers due
to the Contractors failure to protect the work shall also be repaired by Contractor
at Contractor's expense.
':IN! '::3' ~ 'Id 17 .L 0 9 8 E: 17 8 0 17
lO:Sl 92-LO-Ibbl
Sl.d GOO
SECI10N 11 - TECID"CAL PROVISIONS
14
Payment for Item No.9.. Pavement Markers shall be made at the contract UNIT
PRICE bid for this item per each in place, complete. accepted and no additional
payment will be made therefore.
SPECS 4 \PR9201
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The latex modified aspha1t1e emulsion shall conform to the following
reQuirements when tested in accordance with the specified test method:
-
Anionic Cationic
Te$t Test Method L~S--2H ltoRS..2 LMCR.S-2H LMCRS--2
Viscosity f122-F AASHTO 75-300 see 75...300 see
T..59
Sieve . O,,3~ mu. 0.3% max.
Sett\~tnt. 5 d~s . SS max. S~ max.
Oemuls1b111ty . 60% m1n. 40S min_
Storage Stability
Test 1 day . ,< 1% 1ft ax " 1% max.
P article Charge' . Positive
Ash Content ASTM 03723 o .2S Inax. 0.2:% max.
Tests on R.esidue
By Drying:
Percent Residue tAJ....331 65~ min. 65% min.
Penetration @77.F AASHTO 1-49 40-90 90..200 \fS ...0 90...200
1009. 5 set. 7r-..tr
Ouct11tty'11.' AASHTO T.sl 40 em min. 40 em mfn..
SalImi n.
Torsional CAl..332 la~ min. 181 m1 n" .
leco~.ry \
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IECEIVtD
JUL 2!J 1991
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Public Worka/Eng;neering
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WEST VALLEY SANITATION DISTRICT
OF SANTA CLARA COUNTY
C\-\VLIt- ~
g,00~' L--J
~ \ \..... ~ERVING RESIDENTS OF
CITY OF CAMPBELL
TOWN OF LOS GA TOS
CITY OF MONTE SERENO
CITY OF SARA TOGA
UNINCORPORA TED AREA
100 East Sunnyoaks Avenue
Campbell, California 95008
Telephone (408) 378-2407
September 20, 1991
Billy Vick
Sal Duckworth-Lanzo
Lester Ikagami
Jung Wu
Billy Lin
II,
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o'~/En .
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RE: Rosemary/Lucot
Pre-construction Meeting
C l-r-t \?~'''---t l'T '\ \- \.44-
Gentlepersons:
The pre-construction meeting for the Rosemary/Lucot Sanitary
Sewer Extensions will be held this coming Tuesday, September
24, 1991, at 2:00 p.m. I hope all of you can make it. It
will be held at the intersection of Winchester and Rosemary.
A tentative agenda is as follows:
Nick Nichols
1) Status of lateral installation:
a) All laterals will be installed on both Rosemary and
Lucot.
b) We are still surveying the citizens on Audrey and
West Parr.
2) We hope the contractor will start first on Rosemary.
Billy Vick
1) Schedule
2) Traffic plan for Rosemary
3) Method of screening out the large rocks on Lucot.
4) Any items the Contractor wishes.
City of Campbell
* Any items the Contractor wishes.
Allied Engineers
* Any items the Engineer wishes.
Soils Engineers
* Any items the Engineer wishes.
Very truly yours,
William A. Gissler
Distf~rw
By Preston Nichols
Senior Civil Engineer
Address List Attached
(FORMERLY COUNTY SANITATION DISTRICT NO.4)
ADDRESS LIST
Billy Vick
Vickls Pipeline Construction, Inc.
350 Marburg Way #B
San Jose, CA 95133
Sal Duckworth-Lanzo
City of Campbell
Public Works Department
70 N. First Street
Campbell, CA 95008
Lester Ikagami
Allied Engineering Company
3170 Williams Road
San Jose, CA 95117
Jung Wu
CYME, Inc.
1093 Hunterston Place
Cupertino, CA 95014
Billy Lin
CYME, Inc.
1093 Hunterston Place
Cupertino, CA 95014
Ref. No~
,TELEPHONE CALL RECORD
DATE \ \\ .-. ~ - ~ \
TIME ,~\ ~ ~,
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COMPANY TELEPHONE NO.
ITEM DISCUSSED/~CTION REQUIRED
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DISTRIBUTION: R~
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CONTINUED:
C] YES'
C NO
WEST VALLEY SANITATION DISTRICT
OF
SANTA CLARA COUNTY, CALIFORNIA
100 EAST SUNNYOAKS AVENUE
CAMPBELL, CALIFORNIA 95008
CONTRACT DOCUMENTS
FOR
ROSEMARY LANE AND Luce: :AY
SANITARY SEWER EXTENSIONS
AND VICINITY OF LUCOT WAY LATERALS
Approved
#~~
William A. Giss' er
District Manager/Engineer
Approved
/) YJ / /-;L
/ ~~ / / L/~//~
Chairperson BRENT VENTURA
Board of Directors
Res. No. 91.7.39
Date:
July 17, 1991
Date: July 17, 1991
/. -/ j;,.. If
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,
NOTICE
DATE
July 31, 1991
TO
Prospective Bidders
RE
Pre-Bidding Meeting - Rosemary Lane and Lucot Way
Sanitary Sewer Extensions and Vicinity of Lucot Way Laterals
Gentlepersons:
West Valley Sanitation District wishes t~ construct a sanitary
sewerage project composed of three units described as follows:
OBJECTIVE - Construct a sewering system within existing city
streets so that the septic systems to 44 existing residences can be
abandoned.
DESCRIPTION - Install 1,100 feet of 6" sanitary sewer main (from 5
to 9 feet deep) and 44 separate 4" building sewers approximately 30
feet long.
All persons interested in sUbmitting Bids on the above project are
invited to attend a pre-bidding meeting to be held at the offices
of West Valley Sanitation District at 100 East Sunnyoaks Avenue,
Campbell, California 95008 at 2:30 p.m. on Tuesday, August 13,
1991.
Any questions about the project will be answered at that time.
NOTICE INVITING SEALED PROPOSALS OR BIDS
WEST VALLEY SANITATION DISTRICT OF
SANTA CLARA COUNTY, CALIFORNIA
ROSEMARY LANE AND LUCOT WAY SANITARY SEWER EXTENSIONS
AND VICINITY OF LUCOT WAY LATERALS
The Board of Directors of the West Valley sanitation District
invites sealed proposals or bids for the construction of sanitary
sewer mains, wye branches, risers, manholes and building sewers, as
more particularly described in Resolution 91.7.39, adopted by said
Board on July 17, 1991, which resolution is on file in the office
of the District Secretary and to which reference is hereby
expressly made for a more particular description of that portion of
the work to be done.
OBJECTIVE - Construct a sewering system within existing city
streets so that the septic systems to 44 existing residences can be
abandoned.
DESCRIPTION _ Install 1,100 feet of 6" a~itary sewer main (from 5
to 9 feet deep) and 44 separate 4" building sewers approximatelY 30
feet long.
All of said work is to be done at the places and in the
particular locations, of the forms, sizes, dimensions and
materials, and to the lines, grades and elevations as shown and
delineated upon the plans, profiles and specifications made
therefore and preliminarily approved by said Board on July 17,
1991. Bids are solicited for work on units shown in said plans and
specifications.
Payments will be made in cash by said District to the
contractor in accordance with the provisions of the specifications,
and on itemized estimates duly certified and approved by the
District Manager and Engineer submitted in accordance therewith,
based on labor and materials incorporated into said work during the
preceding month by the contractor. District shall make progress
payments and final payment pursuant to section 9-3 of the standard
specifications.
pursuant to section 4590 of the California Government Code,
the contractor will be permitted, at its request and sole expense,
to substitute securities for any monies withheld by the District to
ensure performance under the contract. Said securities will be
deposited either with the District or with a state or federally
chartered bank as escrow agent. Securities eligible for this
substitution are those listed in section 16430 of the California
Government Code or bank or savings and loan certificates of
deposit. The contractor shall be the beneficial owner of any
securities substituted for monies withheld and shall receive any
interest thereon.
Notice is hereby given that pursuant to Section 1773 of the
labor code of the State of California, the Board has obtained from
Director of the Department of Industrial Relations the general
prevailing rate of per diem wages and the general rate for holidays
and overtime work for each craft, classification or type of workman
required to execute the contract. A copy of said prevailing rate
of per diem wages is on file in the office of the secretary to
which reference is hereby made for further particulars. Said
prevailing rate of per diem wages will be made available to any
interested party upon request, and a copy thereof shall be posted
at the jOb site.
All proposals or bids shall be accompanied by cash, cashier's
or certified check payable to the order of West Valley Sanitation
District, amounting to ten percent (10%) of bid, or by a bond in
said amount and payable to said District signed by the Bidder and a
corporate surety, or by the Bidder and two sureties who shall
justify before any officer competent to administer an oath, in
double said amount and over and above all statutory exemptions.
Said check shall be forfeited or said bond shall become payable
to said District in case the Bidder depositing the same does not,
within 15 days after written notice that the Contract has been
awarded to him, enter into the Contract with the District.
Before execution of a Contract with the District, the
successful Contractor shall furnish a surety bond in an amount
equal to one hundred percent (100%) of the Contract price as
security for the faithful performance of this Contract and shall
furnish a separate bond in an amount at least equal to one hundred
percent (100%) of the Contract price as security for the payment of
all persons performing labor and furnishing materials in connection
with this Contract.
Said sealed proposals shall be delivered to the District
Manager and Engineer on or before 2:00 p.m., Tuesday, August 20,
1991, at 100 East Sunnyoaks Avenue, Campbell, California 95008,
said time being at least fourteen days from the time of first
PUblication of this notice. Bids will be publicly opened, examined
and declared on said day and hour. Said bids will be referred to
and considered by the Board at its meeting at 6:00 p.m., on
Wednesday, August 28, 1991.
A copy of the plans and specifications may be obtained from
West Valley Sanitation District, 100 East Sunnyoaks Avenue,
Campbell, California 95008, upon payment therefor of $20.00. This
payment is non-refundable.
Contractors submitting bids shall be licensed in accordance
with the provisions of Chapter 9 (commencing with Section 7000) of
Division 3 of the Business and PrOfessions Code of the State of
California. The Contractor shall not employ a subcontractor on the
work who is not duly licensed in accordance with the provisions of
said chapter.
7-17-91
':~..i.. J ~~
/''''' v -, '--1 ~ ,/?~ '--'-7
Se~etary of the Board
Dated:
CONTENTS
PART A
INFORMATON FOR AND INSTRUCTION TO BIDDERS
PART B
BID REQUIREMENTS AND CONTRACT FORMS
PART C
SPECIAL PROVISIONS
PART D
STANDARD SPECIFICATIONS*
PART E
REPORT BY ASSOCIATED GEOTECHNICAL ENGINEERS
PART F
PLANS AND PROFILES (SEPARATE)
* Contractors can purchase the STANDARD SPECIFICATIONS FOR
PUBLIC WORKS CONSTRUCTION - 1988 EDITION at the following
address:
BNI BOOKS, Division of Building News, Inc.
P.O. Box 3031
Terminal Annex
Los Angeles, CA 90051
or by calling the following telephone number
213-202-7775
section
A-1
A-2
A-3
A-4
A-5
5.1
5.2
5.3
A-6
A-7
A-8
A-9
A-10
A-11
A-12
A-13
A-14
PART A
INFORMATION FOR AND INSTRUCTIONS TO BIDDERS
Standard
Specifications
Reference
2-7
2-5.1
2-3
7-2.2
Title
Examination of Site, Drawings
and Specifications
Test Borings
Interpretation of Plans and
Documents and Issuing of
Addenda
Submission of Bids
Preparation of Bid Forms
Erasures
Modifications
Signature of Bidder
Subcontractors
withdrawal of Bids
Bidders Interested in
More Than One Bid
Contract Parts
Award of Contract
Execution of Contract
Failure to Execute the
Contract
Return of Proposal
Guaranties
Wage Schedule
Page
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
A-I Examination of Site, Drawings and Specifications
It shall be the responsibility of the Bidder to thoroughly
examine the site of the work prior to submitting a bid to the
District, and to satisfy himself as to conditions to be encountered
in performance of the work. No claim against the District for
unusual conditions will be allowed if such conditions could have
been ascertained upon a reasonable visual site examination.
Bidder shall thoroughly examine and be familiar with the
Specifications and Drawings. The failure or omission of any Bidder
to receive or examine any form, instrument, addendum or other
document or to visit the site and acquaint himself with conditions
therein existing shall in no wise relieve him from obligations with
respect to his bid or to the contract. The submission of a bid
shall be taken as prima facie evidence of compliance with this
section.
A-2 Test Borings
The District has had test borings made as deemed necessary to
facilitate the work of the Bidder in the preparation of his bid.
The District, or its Engineer, assumes no responsibility for the
accuracy of the logs, and the Bidders use the same at their own
risk. Ground water levels, in particular, are subject to change
and the information given is valid only for the location and date
indicated.
The Bidder is free to make other borings or tests that he may
deem necessary. Bidders planning to make borings or other tests
must check with the owners of properties or with the agency having
control of streets for permission to conduct the test.
A-3 Interpretation of Plans and Documents and Issuing of Addenda
The District may, when it deems necessary, issue addenda to
the plans and specifications to amend, clarify or correct matter
contained therein. Such addenda shall constitute a part of said
plans and specifications and shall be equally binding with them.
Addenda shall be forwarded to all prospective Bidders. Bidders
shall acknowledge receipt of addenda at the time of bidding.
If any person contemplating submitting a bid for the proposed
Contract is in doubt as to the true meaning of any part of the
specifications and Drawings of other Contract documents, or finds
discrepancies in, or omissions from, the Specifications and
Drawings, he may submit to the District a written request for an
interpretation or correction thereof. The person submitting the
request will be responsible for its prompt delivery. Any
1
~
interpretations or corrections of the Contract documents will be
made only by addendum duly issued, and a copy of such addendum will
be mailed or delivered to each Bidder receiving a set of such
Contract documents. The District will not be responsible for any
other explanations or interpretations of the Contract documents.
No oral interpretations of any provision in the Contract documents
will be made to any Bidder.
A-4 Submission of Bids
The District invites bids on the form attached, to be
submitted at such time and place as stated in the NOTICE INVITING
SEALED PROPOSALS. All blanks in the Bid form must be appropriately
filled in. Wherever called for, a unit price and total price shall
be shown for each item. The unit price and total price may be
shown as numbers only (i.e., the unit price need not be written in
words).
The total price shall be the product of the Bidder's unit
price and the Engineer's estimated quantity. After the bids have
been opened and before any official decision is reached, the
Engineer shall check all bids for correctness. If a discrepancy is
found between the unit price bid and the total price, the unit
price shall be deemed to reflect the bidder's intention and the
total price shall be recalculated.
All bids must be submitted in sealed envelopes bearing on the
outside the name of the Bidder, his address, and the name of the
project for which the bid is submitted. It is the sole
responsibility of the Bidder to see that his bid is received in
proper time. Any bid received after the scheduled closing time for
receipt of bids will be returned to the Bidder unopened.
A-5 Preparation of Bid Forms
A-5.l Erasures. The bid submitted must not contain any
erasures, unless such correction is suitably authenticated by
affixing in the margin immediately opposite the correction, the
surname or surnames of the person or persons signing the bid.
A-5.2 Modifications. Changes in or additions to the bid for,
recapitulations of the work bid upon, alternative proposals, or any
other modification of the bid form which is not specifically called
for in the Contract documents may result in the District's
rejection of the bid as not being responsive to the invitation. No
oral or telephonic modification of any bid submitted will be
considered except when a written confirmation is postmarked prior
to the opening of the bids.
2
A-5.3 Sianature of Bidder. The Bidder must affix his
authorized signature to the bid form. If the Bidder is an
individual, his business address must be shown. If the Bidder is a
firm, partnership or corporation, the business address of the firm,
partnership or corporation shall be shown. For a corporation, the
state in which incorporated shall be shown and the corporate seal
shall be affixed to the bid.
A-6 Subcontractors
-------------------
Each Bidder must submit with his bid:
(a) The name and the location of the place of business of
each subcontractor who will perform work or labor or
render service to the prime contractor in or about the
construction of the work or improvement, or a
subcontractor licensed by the State of California who,
under subcontract to the prlffie contractor. specially
fabricates and installs a portion of the;ark or
improvement according to detailed drawings contained in
the plans and specifications, in an amount in excess of
one-half of 1 percent of the prime contractor's total
bid.
(b) The portion of the work which will be done by each such
subcontractor under this act. The prime contractor shall
list only one subcontractor for each such portion as is
defined by the prime contractor in his bid.
Regulations governing the use of subcontractors are set forth
in Part 1, Section 2.3 of the Standard Specifications.
A-7 withdrawal of Bids
Any Bidder may withdraw his bid, either personally, by written
request or by telegraphic request confirmed in the manner specified
above, at any time prior to the scheduled closing time for receipt
of bids.
A-8 Bidders Interested in More Than One Bid
--------------------------------------------
No person, firm or corporation, shall be allowed to make or
file or be interested in more than one bid for the same work unless
alternate bids are specifically called for. A person, firm or
corporation that has submitted a subproposal to a Bidder, or that
has quoted prices of materials to a Bidder, is not thereby
disqualified from submitting a subproposal or quoting prices to
other Bidders or making a prime proposal.
3
A-9 Contract Parts
The Contract shall consist of the following documents, each of
which is on file in the office of the Secretary of the District and
all of which are incorporated herein and made a part thereof by
reference thereto:
1. The Contract
2. Notice Inviting Sealed Proposals or Bids
3. Instruction and Information to Bidders
4. Accepted Proposal
5. Faithful Performance Bond
6. Labor and Materials Bond
7. Special provisions
8. Standard specifications
9. Design Standards
10. Plan, Profile, and Detailed Drawings
A-10 Award of Contract
The District reserves the privilege of rejecting any or all
bids should it deem such action to be for the public good. The .
District shall reject all proposals or bids other than the lowest
regular proposal or bid of any responsible Bidder, and may award
the Contract to the lowest responsible Bidder at the prices named
in his proposal.
A-11 Execution of Contract
The Contract shall be signed by the successful Bidder and
returned, together with the Contract Bonds within FIFTEEN (15)
days, not including Sundays and legal holidays, after the Bidder
has received notice that the Contract has been awarded.
A-12 Failure to Execute the Contract
-------------------------------------
Failure to execute the Contract and file acceptable bonds as
provided herein within FIFTEEN (15) days, not including sundays
and legal holidays, after Bidder has received notice that the
Contract has been awarded shall be just cause for the annulment
of the award and the forfeiture of the proposal guaranty. If the
successful Bidder refuses or fails to execute the Contract, the
District may award the Contract to the second lowest responsible
Bidder. If the second lowest responsible Bidder refuses to or
fails to execute the Contract, the District may award the Contract
to the third lowest responsible Bidder. In any such contract, so
awarded, the Contractor awarded the work shall faithfully execute
the same as if he were the first lowest Bidder, and the first and
second lowest Bidders shall forfeit their guaranties to the
District.
~
4
A-13 Return of Proposal Guaranties
within 10 days after award of Contract, the District will,
upon demand, return the proposal guaranties accompanying the
proposals of all Bidders except those of the three lowest
responsible Bidders as determined by the District. Proposal
guaranties of such three lowest responsible Bidders will be held
until the contract has been finally executed, after which they
will be returned to the respective Bidders whose proposals they
accompany.
A-14 Wage Schedule
Pursuant to Section 1773 of the Labor Code of the State of
California, the Board has obtained from the DirectcL f the
Department of Industrial Relations the general prevalling rate of
per diem wages and the general prevailing rate for holidays and
overtime work for each craft, classification or type of workman
required to execute the contract. A copy of said prevailing rate
of per diem wages is on file in the office of the secretary to
which reference is hereby made for further particulars. Said
prevailing rate of per diem wages will be made available to any
interested party upon request, and a copy thereof shall be posted
at the job site. The provisions of Article 2, Chapter 1, Part 7,
Division 2 (commencing with section 1770) of the Labor Code, and
particularly Section 1775 thereof, shall be complied with.
5
PART B
BIDDING REQUIREMENTS AND CONTRACT FORMS
Form
Standard
Specification
Reference
B-1 *
2-4
7-2.2
9-3
B-2
B-3
B-4
2-3
B-5
B-6
2-4
B-7
Title
Notice Inviting :3aleJ Prr osals
or Bids
Bid
Experience and Financial
Qualifications of Bidder
Designation of Subcontractor
Noncollusion Affidavit
Contract Forms
Contract Bonds
* See front pages of these contract documents.
Page
1
7
8
9
10
13
B-2
BID
ROSEMARY LANE AND LUCOT WAY
SANITARY SEWER EXTENSIONS
AND VICINITY OF LUCOT WAY LATERALS
WEST VALLEY SANITATION DISTRICT
OF SANTA CLARA COUNTY, CALIFORNIA
The Honorable Board of Directors
West Valley Sanitation District
of Santa Clara County
100 East Sunnyoaks Avenue
Campbell, California 95008
hereinafter called the "District"
1. Pursuant to and in compliance with your advertisement for
bids and other Contract Documents relating thereto, to the
undersigned Bidder, having thoroughly familiarized himself with
the conditions of the Contract, and cost of work at the project
site, the Plans, Specifications, and other Contract documents,
hereby proposes and agrees to perform within the time stipulated,
the Contract and all of its component parts and everything
required to be performed. The undersigned Bidder proposes to
provide and furnish any and all of the labor, materials,
equipment, tools, expendable equipment, sales tax, use tax and
other taxes, licenses and all utility, transportation and other
services necessary to perform the Contract and to complete, in a
workmanlike manner, all of the construction work covered by the
Contract, in connection with the District's Rosemary Lane and Lucot
Way Sanitary Sewer Extensions and Vicinity of Lucot Way Laterals,
for an amount computed upon the basis of the quantity of work
actually performed at the following unit prices.
I
No
Estimated
Quantity
ROSEMARY LANE, CITY OF CAMPBELL
SEPTIC SYSTEM ABANDONMENT PROJECT
Description
unit
Price
Total
Price
-------------------------------------------------------------------
1.
2.
3.
4.
505 Lin Ft
1 Each
16 Each
Lump Sum
6-inch main sewer
complete in place per
specifications.
4' diameter manhole
complete in place per
specifications.
4-inch separate lateral
sewers, including
cleanout at property
line, complete in place
per specifications.
Adequate shoring,
sheeting and bracing
for the protection of
life and limb which shall
conform to applicable
safety order.
TOTAL ABOVE
')
$
$
$
$
$
$
$
$
$
------------------
------------------
No
Estimated
Quantity
LUCOT WAY, CITY OF CAMPBELL
SEPTIC SYSTEM ABANDONMENT PROJECT
Description
Unit
Price
1.
-------------------------------------------------------------------
Total
Price
2.
3.
4.
556 Lin Ft
2 Each
15 Each
Lump Sum
6-inch main sewer
complete in place per
specifications.
4' diameter manhole
complete in place per
specifications.
4-inch separate lateral
sewers, including
cleanout at property
line, complete in place
per specifications.
Adequate shoring,
sheeting and bracing
for the protection of
life and limb which shall
conform to applicable
safety order.
TOTAL ABOVE
3
$
$
$
$
$
$
$
$
$
------------------
------------------
VICINITY OF LUCOT WAY LATERALS
SEPTIC SYSTEM ABANDONMENT PROJECT
No
Estimated
Quantity
Description
Unit
Price
Total
Price
-------------------------------------------------------------------
1.
4 Each
*4-inch separate lateral
sewers on north side of
Audrey Avenue (shown on
Page 4 of plans).
$
$
2.
2 Each
*4-inch separate lateral
sewers on south side of
Audrey Avenue (shown c~
Page 4 of plans).
3 .
5 Each
*4-inch separate lateral
sewers on north side of
West Parr Avenue (shown
on Page 5 of plans).
$
$
4.
2 Each
*4-inch separate lateral
sewers on south side of
West Parr Avenue (shown
on Page 5 of plans).
$
$
TOTAL ABOVE
<::.
....
------------------
------------------
* Including cleanout at property line complete in place per plans.
4
2. SUMMARY FOR ALL THREE UNITS
ROSEMARY LANE $
LUCOT WAY $
VICINITY OF LUCOT WAY LATERALS $
-------------------------------------------------------------------
TOTAL OF ALL WORK ABOVE
$
------------------------
------------------------
It is understood that Contractors will bid all Units and
that all Units will be awarded to one Contractor. It is also
understood that West Valley Sanitation District reserves the right
to delete from contract anyone of the above three projects without
increasing payment or compensation for the remaining two.
3. On the lines provided below the bidder will acknowledge
receipt of addenda (by date of transmittal letter) issued by this
district.
5
4. The Contractor must designate the sewer pipe material he
intends to use on each project. It is understood that the
Contractor is obligated to use the sewer pipe material designated,
if awarded the contract.
DESIGNATED SEWER PIPE MATERIAL
5. The undersigned, having checked carefully the above
figures, understands that the District will not be responsible for
any errors or omissions on the part of the undersigned in making up
this Bid.
bid bond
6. Accompanying this Bid is a certified check in the amount
cashier's check
of Dollars ($ ),
which is in the amount of ten (10%) percent of the total amount of
the bid for combined units and which it is agreed, pursuant to the
Notice Inviting Sealed Proposals, shall be retained as liquidated
damages by the District if the undersigned fail to execute the
Contract and furnish the necessary bonds, and specified, within
fifteen (15) days after notifica~ion of the award of the Contract
to the undersigned, and presentation to him of the prescribed forms
for signature.
7. In submitting this Bid, it is understood that the right is
reserved by the District to reject any and all Bids, and to award a
Contract to other than the lowest bidder. It is agreed that this
Bid may not be withdrawn over a period of forty-five (45) days from
the opening thereof.
8. Accompanying this Bid is a Statement of Experience and
Financial Qualifications of the undersigned Bidder.
9. The statements contained in this bid are made under
penalty of perjury.
DATED
FIRM NAME:
OFFICIAL ADDRESS
BY:
CONTRACTOR'S LICENSE NUMBER
Expiration Date
Telephone No.
(NOTE: The Bidder shall not add any conditions or qualifying
statements to this Bid, as otherwise the Bid may be declared
irregular as being not responsive to the Notice Inviting Sealed
Proposals. Failure to attach an Experience and Financial
Qualifications statement and a Designation of Subcontractors will
be grounds for disqualification of a bid by the District.)
6
B-3
EXPERIENCE AND FINANCIAL QUALIFICATIONS
The bidder has been engaged in the contracting business under State
License No. for a period of years.
The bidder's three most recently completely contracts are:
Title of Project
1 2 3 I
1 I I
I ,
I I I
j
i I i
I i
! I
I I
I
I i I
I
Owner
Address
Telephone No.
Engineer in Charge
Date Accepted
Reference is hereby made to the following bank or banks as to
the financial responsibility of the bidder:
Name of Bank
Address
The reference is hereby made to the fOllowing surety companies
as to the financial responsibility and general reliability of the
bidder:
Company:
Address:
Company:
Address:
Signature of Bidder
7
B-4
LIST OF SUBCONTRACTORS
The following information is furnished relative to each
subcontractor who will perform word or labor or render services to
the undersigned in and about the construction of the project in an
amount in excess of one-half of one percent of the total amount of
this bid. The undersigned agrees that any portions of the work in
excess of one-half of one percent of the total amount of this bid
and for which no subcontractor is designated herein, will be
performed by the undersigned.
NAME OF PROPOSED SUBCONTRACTOR -- IF ANY
(Section 4104 of Government Code)
Name of
Subcontractor
Mailing
Address
Work To
Be Done
1.
2.
3 .
4.
5.
6.
7.
8.
9.
10.
signed
Title
8
B-5
"NONCOLLUSION AFFIDAVIT TO BE EXECUTED
BY BIDDER AND SUBMITTED WITH BID
, being first duly sworn, deposes and says that
he or she is of
the party making the foregoing bid that the bid is not made. in the
interest of, or on behalf of, any undisclosed person, partnership,
company, association, organization or corporation; that the bid is
genuine and not collusive or sham; that the bidder has not directly
or indirectly induced or solicited any other bidder to put in a
false or sham bid, and has not directly or indirectly colluded,
conspired, connived, or agreed with any bidder or anyone else to
put in a sham bid, or that anyone shall refrain from bidding; that
the bidder has not in any manner, directly or indirectly, sought by
agreement, communication, or conference with anyone to fix the bid
price of the bidder or any other bidder, or to fix any overhead, or
to secure any advantage against the pUblic body awarding the
contract of anyone interested in the proposed contract; that all
statements contained in the bid are true; and, further, that the
bidder has not directly or indirectly, submitted his or her bid
price or any breakdown thereof, or the contents thereof, or
divulged information or date relative thereto, or paid, and will
not pay, any fee to any corporation, partnership, company,
association, organization, bid depository, or to any member or
agent thereof to effectuate a collusive or sham bid."
Contractor
PLEASE ATTACH PROPER NOTARY FORM
9
e,
B-6
FOR M 0 F
CON T R ACT
THIS AGREEMENT, made and entered into this ___ day of
, by and between
hereinafter called "Contractor" and WEST VALLEY SANITATION
OF SANTA CLARA COUNTY, hereinafter called the "District";
,
DISTRICT
~ I T N E SSE T H
WHEREAS, the Board of Directors of District has awarded a
contract to Contractor for performing the work hereinafter
mentioned in accordance with the sealed proposal of said
contractor.
NOW, THEREFORE, IT IS AGREED, as follows:
1. Scope of Work: The Contractor shall perform all the work,
and furnish all the labor, materials, equipment and all utility and
transportation services required to complete a ;:; ',,:Jrk on
construction and installation of the impr~vemen 5 r Jre ;crticularly
described in Resolution No. 91. 7.39, adopt:ed by ~l,? legl3lative
body of District on July 17, 1991, the items and quantities of
which are more particularly set forth in the Contractor's bid
therefore on file in the office of the District Secretary, except
work done or to be done by others.
2. Time of Performance and Damages: The Contractor shall
begin work within fifteen (15) days after official notice by the
District Engineer to proceed with the work and shall diligently
prosecute the same to the completion of work in line with Section
C-1 of the specifications.
It is agreed by the parties to the Contract that: in case all the
work called for under the Contract in all parts and requirements is
not finished or completed within the time as set forth herein,
damages will be sustained by the District, to the extent that cost
of engineering, inspection and supervision and overhead expenses
will be increased by such delay; it is, therefore, agreed that the
Contractor will pay to the District the cost of such services
incurred by the District for each and every day's delay in
finishing the work in excess of the time herein prescribed; and the
Contractor agrees to pay said damages as herein provided, and in
case the same are not paid, agrees that the District may deduct the
amount thereof from any monies due or that may become due the
Contractor under the Contract.
3. Pavrnents: Payments will be made by District to the
Contractor for said work performed at the times and in the manner
provided in specifications and at the unit prices stated in
Contractor's bid. with respect to any retention of payment by the
District to ensure the performance of the contract, Contractor will
be entitled to substitute securities as provided in section 4590 of
the California Government Code as more fully described in the
District's Notice Inviting Sealed Proposals.
10
4. Component Parts: This contract shall consist of the
following documents, each of which is on file in the office of the
Secretary and all of which are incorporated therein and made a part
hereof by reference thereto:
a) The Agreement
b) Notice Inviting Sealed Proposals or Bids
c) Information for and Instructions to Bidders
d) Accepted Proposal
e) Faithful Performance Bond
f) Labor and Materials Bond
g) Special Provisions
h) Standard Specifications
i) Design Standards
j) Plan, Profile & Detailed Drawings
5. Apprentices: Attention is directed to the prOV1S1ons in
sections 1777.5 and 1777.6 of the Labor Code concerning the
employment of apprentices by the contractor or any subcontractor
under him. Contractor and any subcontractor under him shall comply
with the requirements of said sections in the employment of
apprentices.
Information relative to apprenticeship standards, wage
schedules, and other requirements may be obtained from the Director
of Industrial Relations, ex officio the Administrator of
Apprenticeship, San Francisco, California, or from the division of
apprenticeship standards and its branch offices.
6. Hours of Labor: Eight hours labor constitutes a legal
day's work. The contractor shall forfeit, as penalty to District,
twenty-five dollars ($25.00) for each worker employed in the
execution of the contract by him or by any subcontractor, for each
calendar day during which any worker is required or permitted to
labor more than eight (8) hours in anyone calendar day and forty
(40) hours in any calendar week, in violation of the provisions of
Article 3, Chapter 1, Part 7, Division 2 (commencing with section
1810) of the Labor Code, of the State of California, and in
particular sections 1810 to section 1815, thereof, inclusive,
except that work performed by employees to contractor in excess of
8 hours per day, and 40 hours during anyone week, shall be
permitted upon compensation for all hours worked in excess of 8
hours per day not less than one and one-half times the basic rate
of pay, as provided in said section 1815.
7. Waqe Scale: The provisions of Article 2, Chapter 1, Part
7, Division 2 (commencing with section 1770) shall be complied
with. Pursuant to sections 1770 and 1773 of the Labor Code of the
State of California, the District has obtained from the Director of
the Department of Industrial Relations the general prevailing rate
for holidays and overtime work for each craft, classification, or
type of workman required to execute the contract. A copy of said
prevailing rate of per diem wages is on file in the office of the
Secretary, to which reference is hereby made for further
particulars. Said prevailing rate of per diem wages will be made
available to any interested party upon request, and a copy thereof
shall be posted at the job site.
11
Contractor shall comply with Labor Code section 1775. In
accordance with section 1775 Contractor shall forfeit as a penalty
to District, $25.00 for each calendar day or portion thereof, for
each work paid less than the stipulated prevailing rates for such
work or craft in which such worker is employed for any work done
under the contract by him or by any subcontractor under him in
violation of the provisions of the Labor Code and in particular,
Labor Code sections 1770 to 1780, inclusive. In addition to said
penalty and pursuant to the amount paid to each worker for each
calendar day or portion thereof for which each worker was paid less
than the stipulated prevailing wage rate shall be paid to each
worker by Contractor.
8. Labor Discrimination: Attention is directed to section
1735 of the Labor Code, which reads as follows:
"No discrimination shall be made in employment of persons
upon pUblic works because of race, color, national origin or
ancestry, or religion of such persons and every contractor
for public works violating this section is subject to all
penalties imposed for a violation of this chapter."
9. Workers Compensation Insurance: In accor -;-" r.: with the
provisions of Article 5, Chapter 1, Part 7, Divisic' .2 (commencing
with section 1860) and Chapter 4, Part 1, Drlisl.on .. \commencing
with section 3700) of the Labor Code of the state of California,
the Contractor is required to secure the payment of compensation to
his employees and shall for the purpose obtain and keep in effect
adequate Workers compensation Insurance.
The undersigned Contractor is aware of the provisions of
section 3700 of the Labor Code which requires every employer to be
insured against liability for workers compensation or to undertake
self-insurance in accordance with the provisions of that Code, and
will comply with such provisions before commencing the performance
of the work of this contract.
IN WITNESS WHEREOF, District has caused these presents to be
executed by its officers, thereunto duly authorized, and Contractor
has subscribed same, all on the day and year first above written.
By
WEST VALLEY SANITATION DISTRICT
OF SANTA CLARA COUNTY
By
Chairperson
Attest:
District Secretary
12
B-7 Contract Bonds
Pursuant to the conditions of section 2-4 of the Standard
Specifications the Contractor shall file with the District a
"Faithful Performance Bond" for 100% of the Contract price.
The Contractor shall file with the District a "Labor and
Materials Bond" meeting all the requirements of said Section 2-4,
except that the Bond shall be in the amount of 100% of the Contract
price.
13
section
C-1
C-2
C-3
C-4
C-4.1
C-4.2
C-5
C-6
C-7
C-8
C-9
C-10
C-11
C-12
C-13
C-14
SPECIAL PROVISIONS
PART C
Standard
Specification
Reference
6-1
6-7
6-6
6-9
7-3
7-3
7-3
1-2
7-7
3-3.2.1
6-1
6-6.4
3-4
6-6.4
3-3.2.2(c}
Title
Work Schedule
Assessment of Damages Due
To Delays
Liquidated Damages
Liability Insurance
Minimum Limits
certificates of Insurance
Definition of Terms
District Furnished Materials
General Guarantee
Personal Interest of
District's Officials
Mutual Responsibility of
Contractors
Reports
Notice and service Thereof
Contractors Registration
Equipment Rental Rates
TV Inspections
Page
1
1
2
3
3
3
4
4
4
5
5
6
6
6
7
7
Section
C-15
C-16
C-17
C-18
C-19
C-20
C-21
Standard
Specification
Reference
Title
Pipe Material
Disposition of Lateral
Sewers
Protection of Survey
Monuments
Soil Compaction Testing
Material for Trench
Backfill
Permit from City of
Campbell
Permit from Town of
Los Gatos
Page
7
7
8
8
8
9
11
C-1 WORK SCHEDULE
1. Board authorizes the solicitation of bids
WEDNESDAY, July 17, 1991.
2. Pre-bidders conference
TUESDAY, August 13, 1991 at 2:30 p.m.
3. Bid opening
TUESDAY, August 20, 1991 at 2:00 p.m.
4. Board awards contract
WEDNESDAY, August 28, 1991.
5. Contractor completes work within 45 calendar
days after starting job and at least
by Friday, November 15, 1991.
C-2 ASSESSMENT OF DAMAGES DUE TO DELAYS
It is agreed by the parties to the Contract that in case all
the work called for under the Contract in all parts and
requirements is not finished or completed within the time as set
forth herein, damages will be sustained by the District, to the
extent that cost of engineering, inspection and supervision and
overhead expenses will be increased by such delay; it is,
therefore, agreed that the Contractor will pay to the District the
cost of such services incurred by the District for each and every
day's delay in finishing the work in excess of the time herein
prescribed; and the Contractor agrees to pay said damages as herein
provided, and in case the same are not paid, agrees that the
District may deduct the amount thereof from any monies due or that
may become due the Contractor under the Contract.
It is further agreed that in case the work called for under
the Contract is not finished and completed in all parts and
requirements within the time specified, the District shall have the
right to extend the time or not, as may seem best to serve the
interest of the District, and if the District decides to extend the
said time, the District shall further have the right to charge to
the Contractor, its heirs, assigns or sureties, and to deduct from
the final payment for the work all or any part as the District may
deem proper, of the actual cost of engineering, inspection,
superintendence, and other overhead expenses which are directly
chargeable to the Contract and which accrue during the period of
such extension, except that the cost of final inspection and
preparation of final progress payment shall not be included in such
charges.
1
The Engineer will determine the amount of extra time to be
allowed, based upon provisions of Subsections 6-6.1 and 6-6.2 of
the Standard Specifications.
In addition to the provision set forth in the paragraph
above, it is further agreed by said parties that time allowed for
completion of the contract is intended by both parties to be that
reasonably necessary to complete work on the basis of eight (8)
hours per working day and forty (40) hours per working week with no
overtime, week-end or holiday work, and that in the event any work
is performed on overtime or on week-ends or holidays during the
period of time allowed for completion, additional damages may be
sustained by the District to the extent the over-all cost of
engineering, inspection, supervision and overhead expenses will be
increased by such overtime, week-end or holiday work; and it is,
therefore, agreed the Contractor will pay the District the amount
of such increase in said overall engineering, inspection,
supervision and overhead expenses incurred by the District and
caused by such overtime, week-end or holiday work, and the
Contractor agrees to pay such damages as herein provided, and in
case the same are not paid, agrees the District may deduct the
amount thereof from any monies due or that may become due the
Contractor under the Contract.
C-3 LIQUIDATED DAMAGES
In addition to the damages set forth in Section C-2 above, it
is further agreed by the parties to the Contract that in case all
work called for under the contract in all parts and requirements is
not finished or completed within the Time of Completion, and any
extensions allowed, as set forth in these Special Conditions,
additional damages will be sustained by the District, and that it
is and will be impracticable and extremely difficult to ascertain
and determine the actual additional damage which the District will
sustain in the event of and by reason of such delay; and it is,
therefore, agreed the Contractor will pay the District the sum of
$300.00 per day for each and every calendar day's delay in
finishing the work in excess of the Time of Completion prescribed;
and the Contractor agrees to pay such liquidated damages as herein
provided and in case the same are not paid, agrees the District may
deduct the amount thereof from any monies due or that may become
due the Contractor under the Contract.
In no event, however, shall the contractor be assessed
liquidated damages for delay in completion of the project when such
delay was caused by failure of the District or Owner of the utility
to provide for removal or relocation of existing utility
facilities.
2
C-4 LIABILITY INSURANCE
Subsection 7-3 of the Standard Specifications shall be
amended as follows:
C-4.1 Minimum Limits. The minimum liability insurance
limits set forth in section 7-3 shall be changed to:
General Liability: $1,000,000 combined single limit
Bodily Injury and/or Property Damage
Automobile Liability: $1,000,000 combined single limit
Bodily Injury and/or Property Damage
C-4.2 certificates of Insurance. Insert the following
between Paragraphs 3 and 4 of Subsection 7-3 of the Standard
Specifications:
The Contractor shall furnish three (3) copies of each of the
certificates of insurance and endorsements for the aqencies listed
in the followinq table setting forth the types of coverage,
including "collapse" and underground utility exposures,
and the limits of coverage in amounts not less than specified in
the above paragraph.
The certificates and endorsements are to include a notice of
additional insured in the followinq form:
"It is hereby understood and agreed that the (insert the
aqencies listed in the followinq table) THEIR OFFICERS AND
EMPLOYEES, IN THEIR CAPACITY AS SUCH, are named as an additional
insured under this policy, but solely as respects liability arising
out of all operations of the Named Insured in and for West Valley
Sanitation District of Santa Clara County."
"It is further understood and agreed that the (insert the
aqencies listed in the followinq table) will be given thirty (30)
days written notice before any reduction of coverage or
cancellation of this insurance is effective.
"It is further understood that the Contractor's insurance is
to be primary to any other valid and collectable insurance
available to the West Valley Sanitation District."
AGENCIES TO BE PROVIDED INSURANCE COVERAGE
West Valley Sanitation District of Santa Clara County
City of Campbell
Town of Los Gatos
3
C-5 DEFINITION OF TERMS
------------------------
Section 1-2 of the Standard Specifications is hereby amended
as follows:
The definition of the following terms shall be changed to:
Aqencv shall mean West Valley Sanitation District of Santa
Clara County, also referred to as "District."
House Connection Sewer shall be known as "Building Sewer."
C-6 DISTRICT-FURNISHED MATERIALS
---------------------------------
(a) Contractor shall furnish all materials required to
complete the work, except such materials as are designated in the
Special provisions to be furnished by the District.
(b) Upon written request of the Contractor, material
furnished by the District will be delivered to him within a
reasonable time at the points designated to the Special Provisions.
They shall be unloaded and hauled to the site of work by the
Contractor and at his own cost and expense. Cost of handling and
placing all materials, after they are delivered to the Contractor,
shall be considered as included in the Contract prices for the
items in connection with which they are used.
(c) The Contractor will be held responsible for all material
delivered to him, and deductions will be made from any monies due
it to make good any shortages and deficiencies, from any cause
whatsoever which may occur after such delivery, or for any
demurrage due to delinquency in unloading.
C-7 GENERAL GUARANTEE
Neither the final certificate of payment, nor any prOV1S1on in
the Contract, nor partial or entire use or occupancy of the
premises by the District, shall constitute an acceptance of work
not done in accordance with the Contract or relieve the Contractor
of liability in respect to any express warranties or responsibility
for faulty materials or workmanship. Contractor shall remedy any
defects in the work and pay for any damage to other work resulting
therefrom which shall appear within a period of one year from the
date of final acceptance of the work, unless a long period is
specified. The District will give notice of observed defects with
reasonable promptness.
4
C-8 PERSONAL INTEREST OF DISTRICT'S OFFICIALS
No official of the District who is authorized in such capacity
and on behalf of the District to negotiate, make, accept, or
approve, or to take part in negotiating, making, accepting, or
approving any architectural, engineering, inspection, construction
or material supply contract or any subcontract in connection with
the construction of the project, shall become directly or
indirectly interested personally in. this Contract or in any part
thereof. No officer, employee, architect, attorney, engineer or
inspector of or for the District who is authorized in such capacity
and on behalf of the District to exercise any executive,
supervisory or other similar functions in connection with the
construction of the project, shall become directly or indirectly
interested personally in this Contract, or in any part thereof, any
material supply contract, subcontract, insurance contract, or any
other contract resulting to the performance of this Contract.
C-g MUTUAL RESPONSIBILITY OF CONTRACTORS
If, through acts of neglect on the part of the Contractor, any
other contractor, or any subcontractor, shall suffer loss or damage
on the work, the Contractor agrees to settle with such other
contractor or subcontractor by agreement or arbitration, if such
other contractor or subcontractor will so settle. If such other
contractor or subcontractor shall file any claim against the
District on account of any damage alleged to have been so
sustained, the District shall notify the Contractor, who shall
indemnify and save harmless the District against any liability
and/or loss arising out of any such claim. The Contractor must
ascertain to its own satisfaction the scope of the project and the
nature of any other contracts that have been or may be awarded by
the District in the prosecution of the project to the end that the
Contractor may perform this Contract in the light of such other
contracts, if any. Nothing herein contained shall be interpreted
as granting to the Contractor exclusive occupancy of the site of
the project. The Contractor shall not cause any unnecessary
hindrance or delay to any other contractor working on the project.
If the performance of any contract for the project is likely to be
interfered with by the simultaneous execution of some other
contract or contracts, the District shall decide which contractor
shall cease the work temporarily and which contractror shall
continue, or whether the work under the contracts can be
coordinated so that the contractors may proceed simultaneously.
The District shall not be responsible for any damages suffered or
extra costs incurred by the Contractor, resulting directly or
indirectly from the award or performance or attempted performance
of any other contract or contracts on the project or caused by any
decision or omission of the District respecting the order of
precedence in the performance of contracts.
5
C-l0 REPORTS
The Contractor and each subcontractor shall submit to the
District such schedules of quantities and cost, progress schedules,
payrolls, reports, estimates, records and miscellaneous data
pertaining to the Contract as may be requested by the District.
C-ll NOTICE AND SERVICE THEREOF
--------------------------------
Any notice from one party to the other under the Contract
shall be in writing and shall be dated and signed by the party
giving such notice or by a duly authorized representative of such
party. Any such notice shall not be effective for any purpose
whatsoever unless served in the following manner:
a. If the notice is given to the District, by personal
delivery thereof to the individual duly authorized to
direct and supervise the project for the District, or
by depositing the same in the United States mails,
enclosed in a sealed envelope, addressed to the
District for the attention of said individual, postage
prepaid and certified;
b. If the notice is given to the Contractor, by personal
delivery thereof to said Contractor or to his
foreperson at the site of the project, or by depositing
the same in the United States mails, enclosed in a
sealed envelope, addressed to the Contractor at its
regular place of business or at such other address as
may have been established for the conduct of the work
under this Contract, postage prepaid and certified; or
c. If the notice is given to the Surety or any other
person, by personal delivery to such Surety or other
person, or by depositing the same in the United states
mails, enclosed in a sealed envelope, addressed to such
Surety or other person at the address or location last
communicated by him to the party giving the notice,
postage prepaid and certified.
C-12 CONTRACTOR'S REGISTRATION
-------------------------------
It shall be unlawful for any person who is not a sewer or
plumbing contractor, whichever is applicable, licensed under the
State Contractor's License Law, to install or construct any
sanitary sewer in Public Rights-of-Way or Sanitary Sewer Easements
within the District. All such licensed contractors must register
with the District prior to commencing or carrying out any such
work.
6
C-13 EQUIPMENT RENTAL RATES
Paragraph 2 of Subsection 3-3.2.3(c) of the Standard
Specifications is hereby amended to read:
Regardless of ownership, the rates to be used in determining
equipment rental costs shall not exceed those listed in the current
equipment rental contract of the Santa Clara County Public Works
Department, unless the equipment used, or a close equivalent, does
not appear upon said list, in which case the current listed price
of local equipment rental agencies shall be used.
C-14 TV INSPECTIONS
1. Sanitary sewer lines, including 4-inch building sewers, will be
TV-inspected by the crews of West Valley :3anitation District.
2. The lines will be inspected free of charge for the contractor,
unless they fail the inspection. In that event, any subsequent
TV-inspections will be done at the expense of the contractor.
3. To accommodate the TV-inspections of pipes 6-inch or larger, the
contractor will proceed as follows:
a. The contractor will air test, ball, and flush the system.
b. During the balling operation, the contractor will leave a tag
line in the pipe. Suggested tag line material is Blue
Diamond Industries utility Cord size 7/64" diameter - SWL 23
lbs., style 38-33-6812, or approved equal.
C-15 PIPE MATERIALS
Sewer pipe options are vitrified Clay Pipe, ABS SDR 23.5 Solid
Wall, or ABS Truss Wall.
The contractor is responsible for furnishing all material
required for project.
C-16 DISPOSITION OF LATERAL SEWERS
The number of laterals depends on property owner interest.
Therefore, WVSD reserves the right to decrease the number of
laterals without affecting the Contractors bid price.
7
C-17 PROTECTION OF SURVEY MONUMENTS
------------------------------------
Location of monuments are shown on the plans. The contractor
is responsible for protecting these monuments during construction.
C-18 SOILS COMPACTION TESTING
------------------------------
The district will pay the cost of the soils compaction test.
If, however, the test does not meet requirements, then the
contractor will be responsible for the cost of subsequent testing.
C-19 MATERIAL FOR TRENCH BACKFILL
----------------------------------
All backfill material will conform to the report prepared by
Associated Geotechnical Engineers, which is included within the
specifications.
.
8
C-20 PERMIT FROM THE CITY OF CAMPBELL
On the following pages is the permit from the City of
Campbell. We wish to qualify two items in that permit.
#1) The requirement marked with ..**.. has been verbally clarified
by Mr. Gomez to the following effect: "Sewer installation by
opencut methods in accordance with detail on Page 6 of plans
will be permitted."
#2) West Valley Sanitation District will pay (at no cost to
contractor) both the $105 Permit Application Fee and the
$2,524.75 Plan Check and Inspection Fee.
9
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C&apbell. CA 9500.
(40') '66-21S0
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Iuued _1/10// AppUcat:1on Datll~
JIeraj,~ .. 1ia 12 _. AIlPUc::a~1on expu.. iD 6 1IOe.
APPLICATIDR - Appl1caUon 18 bereby ... tor a .....Uc Ilona Pen1t 1ft aCClUdallce witb "'~hll
JlUnicipal COde, se=1on 11.04. (Appl1cat1ola upirea 1ft , aont:U it pen1t: not: pulled)
A. Work addre.. or tract: .
In the area of Lucot T'lay and R.oset!larv Lane
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B. h~ot~:Install sanitary sewers to acco~odate sentic svste~
abandoIl!D.ent.
c. Attach five (5) cople. o-r a "aW1DlJ abawiDlJ taw locaUon, ~ and d1Mnaiona of taw vork
The drawUlq afta1l abov tbe relation of taw prOllued work to u:at1n9 .urfaca aDd ~
iaprov.....u. WIlen appl"DVed by tbe City Dl9iDMr. ..14 clrewiDlJ tur... a paI't: of tb1a penit.
D. The General COftd1Uone for all pel'll1t:8 are liftad on the revel'ee .i.... Special Prawi810ne for
thia pera~~ an lined _1_. Failure to abide Dy taw.e conlIiUone and pravi.ione ..y l'U\Ut
in JOb ."u~-down aDd/or forteiture of Pa1thful Pertoraance BoncI8 and cu.b cIepoeit.a. (S..
General COnd1t10na 1 and 2).
E. An .pplication f.. auet u:allaay t:Il1a appl1cat:1on. fila 18 DOn-ntundUle.
..... of Applic:en~ T.]est Valley Sanitation District 'l'elepbonet 378-2lj.()7
Addn.. lOr) East Sunnvoaks Avenue. Camubell. CA 95003
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Is this work beinCJ done by tbe property owner at tbe1r own re.idence7 -ye. _no
CoapleU and attach vorlcan' CGalI&naation aDd Contractor Inforaation forae.
The Appl1cant/Peraittee hereby aCJr... Dy aff1x1nq tbeir .iCJnature to thi. perait to hold the City
of
Ca.pbell, it. officera. agenu and .-ploy... free, ..te and harale.. fro. any clata or dea&ftd for
da"ge. re.ultlnq tro. the vork covered by thi. pe~~.
The Applican~/Peraittee hereby aCknowledq.. tha~ they have read and uncIeraUnd bocb the front and
bacx ot tJ'lia pe~~, and tha~ they wlll 0 tbe1 ua o{() of the inforaaCion.
ACCEPTED Preston R. Nichols 4-26-91
Appl~CAn~ (Pera~~~e) pr~n~ Date
PIEASE SEE mE PIANS A.~ GEal'ErnNICAL ~
A u:':tTI.. 22,
1991
NOTES: ALL WORK SHALL CONFORJII W1'!'H 'l'HI: AT'l'ACHED. APPROVED PLUS AIID AU. APPLICABLE CAIIPBILL
STAHDARD DRAWINGS AND CONDITIONS. R E eEl V E D
THE CONTRACTOR MUST HAVE '!'HIS PERJlIT AND APPROVED PLUS AND MUS'l' II!l'f "I'l'H 'l'HE P.W. INSPEc:TOR ON
THE SITE AT L.tAST TWO DAYS BEFORE STAJtTDfG WORK. JUL :! 9 1991
NOTICE MUST BE GIVDf TO PUBLIC WORKS AT LEAST 24 HOURS BEPDJtE RES'l'AJt'1'IJlG AIfY WOJUt.
P-ublic Worbl fng;new;ng
SP~C!AL P~OV!S!ONS
_1.
Street shall no~ be open cut tor underqrcund installationa. K1ni.ua cute ..y be allowed
tor conne"~ons or explorat~on bol... Such cuta .u.~ be .~cificallv a~Droved bY t.he
Insl).c:~or.
Pave..nc ..y be cut for underqround in.tallat10na and .u.~ be re.Cored in accordance with
tne Utili~y Trench R..torat~on Standard Draw~nq.
Work to be .taxed by a licenaed Land Surveyor or Civil Enqineer and two (2) copte. of the
cuc .heec. .ene to the Public Work Dep~~t befoZ'e .tartinq '_rk.
TI'1e hour. of work are li.ited to outai.de the hcNrlI of 7-9 a... aJIcI 3-6 p... for any _rlc
atte"inq a traffic lane. ~~" ,6.., -1 ~ (' ~~ D
r_Dt )~\"lOu d"F ~PPf2.0V^<. ~
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R~~YP!' MC
PERMIT APPLICATION FEE ($50.00)
PLAN CHECK DEPOSIT
BONO FOR FAITHFUL PERPORMAJlCJ:
$ t6~.oo q
.--,
$100.00
$500.00
PLAN CHECK ,
$
$
S
$ ~~-z..4t'{~ q>
.,-~\ ~ ,
Da~
(100' OP !JIG. ES'l'.)
(4' OP lORD, $500 KIN)
CASH DEPOSIT ($200.00)
APPROVED FOR ISSUANCE
t: PWPERMIT
RevueQ 7/90
~~
See. l'1e1fe
fJr1 11'0 II /" ttS N~"
PUBLIC YORKS DEPT.
CITY OF CAMPBELL
JULY 31, 1991
PAGE 1 OF 2
CONDITIONS OF APPROVAL FOR ENCROACHMENT PERMIT NO. 91-144
ISSUED TO YEST VALLEY SANITATION DISTRICT
FOR INSTALLATION OF SANITARY SEYER MAINS AND SEWER SERVICES
ON LUCOT YAY; ROSEMARY LANE EAST OF YINCHESTER;
AUDREY AVENUE, OBURN TO VALE; AND,
YEST PARR AVENUE, YEST OF VALE
A. All existing public street improvements shall be protected from
damage.
B. All existing street survey monuments shall be referenced by a licensed
land surveyor/registered civil engineer and field notes provided to
City Engineer. All existing survey monuments shall be protected from
damage. Any damaged and/or disturbed monument shall be reinstalled or
reset to its original location by a licensed land surveyor/registered
civil engineer.
C. A construction traffic control plan and a construction schedule shall
be submitted to the City Engineer for review and approval for each
street a minimum of seventy-two (72) hours in advance of any scheduled
need to install the traffic controls. Construction traffic controls
for lane closures shall include electronic flashing arrow signs at all
times the closures are in effect.
D. Trench backfill material shall be as follows:
1. Rosemary Lane:
According to the geotechnical engineer's report, there were no
large rocks in the exploration pits. Therefore, the trenches may
be backfilled with native material in accordance with the detail
shown on page 6 of the plans, and in accordance with the
geotechnical engineer's report.
2. Lucot Yay (including laterals in the vicinity):
According to the geotechnical investigation, 20% of this material
is comprised of rocks greater than 2.5 inches. The contractor
shall have the following two options:
Option A: Using a screen, remove the 2.5 inch plus material and
remove from site. The remaining material may be used
for trench backfill.
Option B: Remove all native material from the job site and use
approved import material that meets the City
specifications.
Permit 91-144
Page 2 of 2
Note: For both above options, the trenches shall be
compacted in according with detail shown on page 6 of the
plans and in accordance with the geotechnical engineer's
report.
3. Audrey and West Parr Avenues:
Backfill materials and backfill requirements for Audrey and
West Parr Avenues shall not be less than those applicable to
Lucot Way, above.
E. Trench Restoration
The trench shall be backfilled and resurfaced in accordance with
the detail shown on page 6 of plans. In addition to those
requirements, the following shall apply: the minimum asphalt
concrete backfill thickness shall be the existing asphalt
concrete thickness plus two (2) additional inches but not less
than three (3) inches total thickness minimum.
On Rosemary Lane, the new asphalt concrete cap, plus twelve (12)
inches on each side, shall be surface treated with a "rubberized
chip seal" material to match the existing rubberized chip seal.
On Lucot Yay, Audrey Avenue and Yest Parr Avenue, the new asphalt
concrete cap, plus twelve (12) inches on each side, shall be
surface treated with a chip seal or slurry seal to match the
existing surface treatment.
F. Backfill material for installation of pipe under curb and gutter,
sidewalks, driveways or concrete slabs shall consist of a
sand/cement slurry, two (2) sacks of cement per cubic yard of
material. The material shall be vibrated in place to fill the
total cavities below the slabs without any voids. The backfill
and vibration shall be complete to the highest point of the
concrete slabs.
G. Any change in the plans or the specifications is subject to
review by the City Engineer.
H. "As-built" drawings shall be submitted to the City Engineer for
review. "As-built" drawings shall show sewer services installed.
F:91-144
C-21 PERMIT FROM TOWN OF LOS GATOS
Permit from the Town of Los Gatos is on the following page.
11
ENCROACHMENT PERMIT
APPLICATION FOR PERMIT TO MAKE OPENING IN STREET OR SIDEWALK AREA
TOWN ENGI~. TOWN OF LOS GATOS
The undersigned applicant, in accordance with Chapter 26, Los Gatos Town Code, applies for permission to
make opening in street or sidewalk for the purpose of doing the work hereinafter described:
Applicant: I J/ p, ...1- V Co })" ~ (",,,, ,'1-...1-;(l J1 n,.~ 1-" ( 1-
Address: 100 E .Jc...nnr 0" ,\J t1vC"'. C',"",-ID' // ("l 1\"DO f(
Location of Work: We.s 1- P.-.,..,.. -4,;(. ' Es't.COlllp,of Work,
Tele,No. ("'OR'3).<?'),'1D~
Max. Depth of Trench* : (; I
l ' 11..-' 'rJ. Job No. t,f7/J /~~,' ...
The undersigned applicant hereby agrees to execute the work in accordance and in strict conformity with
the provisions of Chapter 26 of the Town Code, and the applicant agrees to protect and hold the Town of
Los Gatos, its Councilmembers, its Boards, its Commissions, and its employees, acting in their capacity as
such, harmless against any and all suits and claims on account of any injuries or damages alleged to have
been sustained in or arising fro. the work described herein,
lNwf~~tJfi1'ffY!(~lt.iYl'._N'$'6.jeet'o'i''%'!'(,~5lf~68fi.).Ctw.ft.y;:;:tqur:#(24) ho~tl',,<ln..i.tvanee.."qt.., call\lI\ene i ng the wo r k
* If maximum depth of trench is five (5') feet or greater, the construction safety orders of the State of
California, Division of Industrial Safety shall be followed.
/1' ;; /: /~
.~- (j~___ lo /'" W.' l),' ~ "'1 A, (,.,', <l f>,.-
SIGNATURE OF' APPLICANT OR AUTHORIZED AGENT FED PAID
*****.........................................................*************.**********
~
'i<?,y.q/
DATE
$
PERMIT TO MAKE OPENING IN STREET OR SIDEWALK AREA
1 i
1/ ' 30 b
..
TO:
ABOVE NAMED APPLICANT
PERMIT NO.
Permission is hereby granted to make the opening in the street or sidewalk area as
described in the above application, subject to the requirements and conditions
indicated below; also. subject to the Town of Los Gates Standards.
Cdii 4 I.... ,~(. _.i
on tons: ,'. l'''''/''tJi..I(e./ ,r'........, ( ....... !"c) I
_(,.J~:,"~L-(l,... -'-;J c...~ ,,'jlc- \.'\.00" ~-~ ,..j)y)r-,')I.J~cj
:"'~1 1:-1 ~- "'1",---,( -._,..../ fI~ +';"0" :/,. (., 1_<lI"'~ .1,>,\..,,,.,, - ~
.~ '"':'" '... , .~ f' cJ.. 1- :.. //
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.J
SPEClJUL Ncnng: Cutting of trees or tree roots is ~ permitted without approval of the Dir. of Parks and
Forestry, The applicant shall notify the Dir. of Parks and Forestry in all cases where the work to be done
may interfere in any way with street trees. You and your employees, agents and contractors must: (1) comply
with all laws and ordinances which in any way concern the work; (2) take all precautions necessary to prevent
accidents while the work is underway, including the placement and maintenance of barricades, cones, lights.
and use of flagmen, whenever needed to warn of dangerous conditions,
This permit shall be void unless the work is completed before I-j - !. '1 I unless a time extension
. .......
is granted, in writing, by the Town Engineer.
BOND AMOUNT REQUIRED:
tJ /;'1
CHRISTINE L. FISCHER. TOWN ENGINEER
BY .)/ C--' ( -;~ ~
(Inspector)
N011&:A Certificate of Workmen's Compensation Insurance, or certified copy thereof, covering the workmen en-
gaged in this permitted work, shall accompany this application, or be on file with the Town of Los Gatos
Otherwise, this permit is not valid,
12
section
D-1
D-2
D-2.1
D-2.2
2.2.1
2.2.2
D-2.3
D-2.4
D-2.5
D-2.6
D-2.7
D-2.8
2.8.1
D-2.9
D-2.10
2.10.1
2.10.1.1
2.10.1.2
2.10.1.3
2.10.1.4
2.10.1.5
2.10.1.6
2.10.1.7
2.10.2
2.10.2.1
2.10.2.2
2.10.2.3
PART D
STANDARD SPECIFICATIONS
Standard
Specification
Reference
206-3.3
tI~
208-2.1
306-1.2.1
306-1.2.1 N"
306-1.2.2
300-3.5 I(~
306.1.3.1
306-1. 4.1
306-1. 4.4 N~
306-1. 5.2
201-1,201-5
306-6
206-3
/VI(
,
Title
Resolution Adopting Revised
Standard Specifications for
Sanitary Sewer Construction
within West Valley Sanitation
District Santa Clara County
State of California
ADDENDA TO THE STANDARD
SPECIFICATIONS
Manhole Frame andver Sets
PolyvinYl Chloride Pipe (PVC)
General
Joints
Joints for Clay Pipe
Beddinq
Separate Jettinq of Beddinq
Not Required
Pipe laving (Flexib.~e pipes)
Manhole Backf:::. I Miv Proceed
Immediately
Testinq Pipelines for Leakaqe
Air Pressure Test
Permanent Resurfacinq
Standard Sanitary Seweraqe
Structures
Manholes
General
Materials
Construction
Manhole Stubs
Water stop (Flexible Pipe
Only)
Flexible Joint at Manhole Wall
(Rigid Pipes Only)
6J~ Manhole Repair and Adjustment
"n Sewer Risers
~ General
Materials
Construction
=
Not relevant to this project.
Page
1
2
2
2
2
2
3
3
3
3
3
3
4
4
5
5
5
5
5
7
7
8
8
8
8
8
8
section
0-2.11
2.11. 1
0-2.12
2.12.1
2.12.2
2.12.3
2.12.4
0-2.13
2.13.1
2.13.2
0-2.14
2.14.1
2. 14 . 1. 1
2. 14 . 1. 2
2.14. 1. 3
2.14.2
2.14.2.1
PART 0
STANDARD SPECIFICATIONS (Continued)
Standard
Specification
Reference
-
207
rvR
72-3.02
72-3.03
Title
Wve and Tee Branches
General
Buildinq Sewers
General
Location
Installation
Testing
Flushinq and Cleaning Sewer
Lines
Sewers up to and Including
21 Inches in Diameter
Sewers 24 Inches and Over
in Diameter
Bank Protection and Erosion
Control
Sacked Concrete Bank
Protection
Material
Placement
Measurement and Payment
Redwood Erosion Control
Structures
Construction and Payment
..
Paqe
9
9
9
9
9
9
10
10
10
11
11
11
11
11
11
11
11
..
0-1
RESOLUTION NO. 90.5.l!
RESOLUTION ADOPTING REVISED STANDARD SPECIFICATIONS FOR
SANITARY SEWER CONSTRUCTION WITHIN WEST VALLEY SANITATION
DISTRICT OF SANTA CLARA COUNTY, STATE OF CALIFORNIA
WHEREAS, Chapter 6, DESIGN AND CONSTRUCTION OF PUBLIC
SEWERS, of the Ordinance Code of West Valley Sanitation District,
Santa Clara County, California, provides for adoption of
specifications for the construction of sanitary sewers within
said District; and
WHEREAS, Resolution No. 84.6.32, a RESOLUTION ADOPTING
REVISED STANDARD SPECIFICATIONS FOR SANITARY SEWER CONSTRUCTION
WITHIN WEST VALLEY SANITATION DISTRICT OF SANTA CLARA COUNTY,
STATE OF CALIFORNIA, was adopted by the Board of Directors of
said District on June 13, 1984; and
WHEREAS, the Board of Directors of said District wish to
update said specifica~ions;
NOW, ~HEREFORE, BE IT RESOLVED AND IT - HEREBY ORDERED
that:
1. Except as may otherwise be provided herein, the
provisions of the 1988 Edition of the "STANDARD SPECIFICATIONS
FOR PUBLIC WORKS CONSTRUCTION, " prepared by the Southern
California Dis~rict of the Associated General Contrac~ors of
America, are adopted and made applicable to all sanitary sewer
construction undertaken within West Valley Sanitation District
after the cate of this resolution.
2. Since the said Standard Specifications are general in
nature and con~ain references to processes, procedures and
material~ not applicable to all projects, sections of 3aid
Specifications may be modified, changed or superseded by Special
Provisions, Addenda, cr by writ~en Change Orders signed by the
Di3trict Engineer. ~odificat:ons are listed in Part ~, Section
D-2, of these Specifications.
~
vo
~~e Standard Specifications adopted by said Resolution
No. 84.6.32 are hereby repealed.
PASSED riND ADOPTED by the Board of Directors of West Valley
Sanitation District of Santa Clara County, State of California,
this 9th day of May, 1990, by the following vote:
AYES:
Directors ASHWORTH, CLEVENGER, FERRITO, LUCAS
NOES:
:irectors NONE
ABSENT:
Directors DIRIDON
1
0-2 Addenda to the Standard Specifications
-------------------------------------------
In order to bring the "STANDARD SPECIFICATIONS FOR PUBLIC WORKS
CONSTRUCTION" 1988 Edition more closely in line with the current
standards, practices and engineering requirements of West Valley
Sanitation District, the following additions, deletions and changes
have been adopted and made a part of these Standard Specifications by
said Resolution No. 90.5.31of the Board of Directors of West Valley
Sanitation District:
0-2.1 Manhole Frame and Cover Sets.
Section 206-3.3 of the Standard Specifications shall be replaced
by the following:
All manhole frames and covers shall be manufactured to the
dimensions and features shown on Standard Drawing No. 4 and shall meet
the following requirements:
1. The frame and cover shall be machined on 3 surfaces each, as
noted, to insure uniform appearance, interchangeability and
close, quiet fit.
2. Manufacturer is to certify that frame and cover meet all
load requirements for H-20 highway loading. Manufacturer
shall furnish proof that covers and frames have been load-
tested in accordance with Federal Specification RR-F62Ib,
per Par. 4.4.1 and Par. 3.8.1 and certified to a minimum
40,000 lb. loading.
3. Covers shall have an A.S.T.M. grid pattern with the words,
"SANITARY SEWER," cast into a central clear area as noted on
the drawing. The manufacturer's name may be cast around the
rim at the manufacturer's option.
4. All materials used in manufacturing shall conform to
A.S.T.M. Specifications A159-64T-7GOOO or Federal
Specification QQl-653 Class G3000.
5. All castings shall be dipped in asphalt paint, as specified
in Subsection 206-3.6.
0-2.2 Polvvinvl Chloride Pipe (PVC)
0-2.2.1 General. Polyvinyl Chloride Pipe and fittings shall
conform to the requirements of A.S.T.M. Designation 0-3033 of latest
issue or A.S.T.M. Designation 0-3034 of latest issue.
0-2.2.2 Joints. The joints shall be of the Bell and Spigot
type, utilizing a continuous rubber ring to insure a water-tight seal.
2
0-2.3 Joints for Clav Pipe
section 208-2.1 of the Standard Specifications, "Joints for Clay
Pipe," shall be amended by the insertion of the following at the
beginning of the Section:
Clay pipe for use within the District shall have types C, 0, F or
G, Joints only.
D-2.4 Bedding
The first paragraph of Section 306-1.2.1 of the Standard
Specifications shall be replaced by the following:
Bedding shall be defined as that material supporting, surrounding
and extending, to 6 inches around the pipe.
Bedding shall extend to 6 inches radially from the largest
outside diameter of the pipe. Bedding sha 1 be crushed rock 3/4"
maximum particle size conforming to the gradation for 3/4" crushed
rock, set forth in section 200-1.2. The cost of bedding will be
included in the unit price bid for the pipe.
D-2.5 Separate Jetting of Beddinq Not Required
The requirement in the 3rd paragraph of section 306-1.2.1 that
bedding be jetted prior to the placement of the backfill is hereby
waived.
D-2.6 Pipe Lavinq (Flexible Pipes)
Add the following to the end of Subsection 306-1.2.2 "Pipe
Laying":
All flexible sewer pipes, i.e., PVCP and ABSP, are to be laid
according to A.S.T.M. Designation 0 2321-72 "Recommended Practice for
Underground Installation of Flexible Thermoplastic Sewer Pipe." In
addition to the requirements of the above "Recommended Practice," the
"Required Bedding" shall be 3/4" crushed rock extending to at least
the level of the tops of the pipe as shown on Standard Drawing No.6.
0-2.7 Manhole Backfill May Proceed Immediatelv
Manhole bases are exempt from the requirement of sections 300-3.5
& 306-1.3.1. Backfilling of the trench may proceed as soon as
channels are finished and barrel sections have been placed.
D-2.8 Testinq Pipelines for Leakaqe
Subparagraph 2 of Paragraph 2 of Subsection 306-1.4.1 of the
Standard Specifications is amended to read as follows:
All Gravity Sanitary Sewers - Air pressure test.
3
D-2.8.1 Air Pressure Test. Replace Paragraphs 5, 6, 7, 8 and
Tables of Subsection 306-1.4.4 of the Standard Specifications with the
following:
Air shall be introduced into the pipeline until 4.0 psi (gage)
pressure has been reached, at which time the flow of air shall be
reduced and the internal air pressure shall be maintained between 3.5
and 4.5 psi (gage) for at least 2 minutes to allow the air temperature
to come to equilibrium with the temperature of the pipe walls.
Pressure in the pipeline shall be constantly monitored by a gage and
hose arrangement separate from the hose used to introduce air into the
line. Pressure in the pipeline shall not be allowed to exceed 6 psi
(gage) .
After the temperature has stabilized and no air leaks at the plugs
have been found, the air pressure will be permitted to drop and, when
the internal pressure has reached 3.5 psi (gage), a stop watch or
sweep-second-hand watch shall be used to determine the time lapse
required for the air pressure to drop to 2.5 psi (gage).
If the time lapse (in seconds) required for the air pressure to
decrease from 3.5 to 2.5 psi (gage) exceeds the lesser of the two
times computed by the use of formulas (1) and (2), set forth below,
the pipe shall be presumed to be within acceptance limits for leakage.
If the time lapse is less than
computed by the use of formulas (1)
the n::~ss::Y :~~:i;~ns (:d:ed::e
the
and
the
lesser of the two times
(2), the Contractor shall make
leakage to acceptance limits.
L + ....d2 L )
2 n n
2
+ d
2
2 2 2
d L + d L + ....d L
~O'O8~ 1 1 2 2 n n
(2) tq = --~--
d L + d L + ....d L
1 1 2 2 n
Where: Q = 2.0 cubic feet per minute.
q = 0.0030 cubic feet per minute per square foot
of internal pipe surface.
d = diameter of pipe in system being tested in
inches.
L = length of pipe in system being tested in feet.
t = elapsed time in seconds.
0-2.9 Permanent Resurfacing
Section 306-1.5.2 of the Standard Specifications shall be amended
by inserting the following at the beginning of the section:
4
Permanent resurfacing may be commenced as soon as the Engineer
determines that the trench has stabilized or a maximum of 30 days
after trench backfill has been placed. If the trench is not
sufficiently stable at the end of 30 days, the Engineer may grant an
extension of time, or he may direct the contractor to take action to
accelerate the stabilization process. Paving shall be restored per
specifications outlined on the encroachment permit. Where no such
specifications apply, paving shall be restored to a minimum thickness
equal to the existing pavement or 3 inches, whichever is greater.
0-2.10 Standard Sanitary Sewerage Structures
0-2.10.1 Manholes
D-2.10.1.1 General. Manholes shall be sound water-tight
structures constructed where called for on the Plans and in accordance
with these Specifications. They shall be constructed of pre-cast
concrete sections upon a cast-in-place concrete base or upon an
approved precast manhole base.
0-2.10.1.2 Materials. Pre-cast concrete manhole sections shall
conform to A.S.T.M. Designation C-478. Eccentric cone sections shall
be used unless other types are specified on the Plans or are requested
by the Engineer.
Concrete for the base shall be Class 560-C-3250 with 3-inch slump
allowed as designated in section 201-1.1.2 of the Specifications.
Manhole steps shall be installed at time of manufacture of the
pre-cast section. Steps shall conform to Drawing PS2-PFS by M. A.
Industries, Inc., or approved equal, and A.S.T.M. C-478.
Mortar shall be Class "C" Mortar as designated in section 201-5
of the Specifications.
0-2.10.1.3 Construction. The excavation for the manhole shall
have a flat bottom on undisturbed earth. The excavation shall be of
sufficient depth to insure a minimum of 8" of concrete below the
lowest pipe in the manhole. The width of the excavation will be great
enough for the base to be a minimum of 3" wider than the outside wall
of the barrel section at any point. No reinforcement is required
except by order of the Engineer.
The concrete shall be placed in a continuous pour, care being
taken that segregation of materials does not occur. Consolidation
shall be by spading and working to achieve a dense watertight mass.
The depth of concrete shall be sufficient to provide 3 inches of
concrete above the top of the highest pipe in the base.
An approved metal impression ring shall be used to produce a
level keyed slot for the barrel section. The concrete shall be worked
under and around the impression ring so that a continuous smooth
impression results.
5
Where possible the main sewer pipe shall be laid through the ,
manhole so that the pipe can serve as the bottom of the channel.
After the concrete has set and at a time approved by the Engineer, the
top half of the pipe shall be removed to the inside wall of the
manhole and the cuts smoothed with mortar.
In manholes where it is not practical to lay the pipe through the
manhole (such as at angle points and at intersections), the pipes
shall end at the inside wall of the manhole barrel. Channels will be
formed in the concrete base joining the pipes with smooth curves. The
walls of the channels shall be vertical above the center line of the
pipes. The bottoms of channels so formed shall conform to the bottom
halves of the pipes being joined.
When a change in elevation or slope is called for across the
manhole, the bottoms of the channels shall be warped to achieve a
smooth curve resulting in an even flow without turbulence.
The top of the base shall be troweled smooth with a slope of
approximately 1/2" to the foot toward the main channel.
The shaft sections shall be installed plumb and aligned so that
the steps are in a straight vertical line. Unless otherwise required
by the Engineer, the steps shall be aligned horizontally 45 degrees
away from the direction of the flow of the sewer main on the upstream
side.
Joints between pre-cast sections and between the base and the
first pre-cast section shall be made using a pre-formed flexible
plastic joint sealing compound such as "Ram Nek" or "Quick Seal"
installed according to the manufacturer's recommendations, to insure a
watertight joint. Grade rings shall be installed on a continuous bed
of Class C mortar.
The sections shall be combined in such a manner that the maximum
height of neck section is 9 inches measured from top of cone to bottom
of casting. Exception to this criterion shall be when the future
final elevation of manhole rim is known, the manhole cone may be
constructed in accordance with the corrected future elevation and the
rim constructed to above existing grade by use of grade rings.
When steps are required in the pre-cast sections, they shall be
installed at the plant by the manufacturer. They shall be installed
so that center of the step, measured at right angles from the inside
wall of the pre-cast section, is six inches from the wall. They shall
be installed in vertical alignment 12 inches apart.
Manhole steps in addition to factory-installed steps will be
required when the distance from the manhole rim to the first factory-
installed step is greater than 24 inches. In such a case the
contractor will install steps as required to preserve the 12-inch
maximum spacing between steps.
6
The steps shall be installed according to the manufacturer's
specifications. The steps so installed shall be in alignment with the
steps in the pre-cast sections and installed so that the center of the
step, measured at right angles from the inside wall of the pre-cast
section, is three inches from the wall. The installation holes shall
be thoroughly packed with mortar to securely anchor the step in place.
The mortar shall be neatly struck, and the step shall not be disturbed
until the mortar has completely set.
When a drop connection is shown on the plans, it shall be
included as part of the manhole construction. The engineer shall
decide whether the drop shall be inside or outside of the manhole. If
an outside drop is called for, the drop shall be made with the
approved fittings outside the manhole shaft. The lower pipe shall be
constructed into the base by aforementioned channeling procedures. The
base shall be enlarged to encase the lower fittings. Drop connections
are to be avoided if at all possible, by laying the first 50' of pipe
in a vertical curve to the manhole base. If an inside drop is called
for, a detail will be provided for the manhole construction.
Particular care must be taken to protect the manhole from damage
and to keep rock, dirt or debris from getting into the sewer. A steel
cover of adequate strength, close-fitted and well secured, shall be
kept over the manhole opening until the frame and cover are
permanently installed. A wooden cover shaped to completely cover the
bottom of the manhole shall be installed and left in place until the
frame and cover are installed.
The manhole frame and cover shall be permanently set when so
authorized by the Engineer. The frame shall be centered on the
manhole neck and set on a layer of mortar to final grade. The mortar
shall be neatly struck. A concrete block shall be formed vertically
and poured around the manhole neck from a point two inches below the
top of the casting to the top of the cone section to securely anchor
the frame to the manhole neck. The block shall be centered on the
manhole and have a diameter of four feet. The frames of manholes in
not-traveled areas shall be secured to the cone or grade ring with a
concrete collar as shown on Standard Drawing No.1.
0-2.10.1.4 Manhole Stubs. Stubs out of manholes will be laid to
the lines and grades called for on the Plans. Stubs shall have a
water-tight plug at each end. Payment for stubs 5 feet or less in
length will be included in the unit price bid for the manhole.
0-2.10.1.5 Water stOD (Flexible PiDeOgly). When flexible pipes
are being installed in a manhole base, a "water-stop" of a type
recommended by the man~facturer of the particular pipe shall be
installed at the manhole wall.
7
0-2.10.1.6 Flexible Joint at Manhole Wall (Riaid Pipes Onlv).
When rigid pipes (except Ductile Iron Pipe) are being installed in a
manhole base, the pipe shall be snapped off 6" from the point of
support, and a flexible joint such as "Band-Seal" Coupling, installed
to allow for possible differential settlement of the manhole base and
the pipe.
0-2.10.1.7 Manhole Repair and Adiustment. The following is an
addition to section 306-6 of the Standard Specification. Unless
otherwise permitted by the Engineer, existing manholes shall be
repaired or adjusted by use of pre-cast concrete sections or cast
iron raising rings.
When the adjustment required would necessitate lowering the
manhole by cutting into the cone section more than one inch or raising
the manhole to the extent of making the throat longer than 24 inches,
the adjustment shall be made by removing a sufficient portion of the
manhole so that it may be constructed in accordance with the
requirements for new construction. (The manhole throat shall be
considered as the two-foot diameter portion including frame.)
Before any work is started on adjusting or repairing an existing
manhole, the channel in the base shall be covered with a wooden cover
fitted to prevent debris from entering the sewer line. This cover
shall be kept in place during all work. Upon completion of the work,
the cover shall be carefully removed from the manhole, allowing no
debris to fall into the channels or to remain in the manhole.
0-2.10.2 Sewer Risers
0-2.10.2.1 General. Risers shall be constructed at the
locations and to the lines and grades shown on the Plans or as
directed by the Engineer.
0-2.10.2.2 Materials. The riser barrel shall be of the same
material and in the same diameter as the main sewer to which it
connects. Frame and cover castings shall conform to the requirements
of Subsection 206-3 of the Standard Specifications.
0-2.10.2.3 Construction. The riser shaft shall be a straight
piece of pipe joined to the mail by means of two one-eighth bend
fittings separated by a 12-inch minimum to 24-inch maximum length
section of pipe, with all fittings joined in the same manner as
required in the pipe-laying section of these Specifications. The one-
eighth bend fittings shall be encased in 3/4-inch crushed rock bedding
material to the highest point of the highest one-eighth bend.
The shaft shall be installed vertically, so positioned that the
one-eighth bend fittings are located at the station shown on the
Plans.
8
The shaft will be cut smoothly at right angles so that it will
extend to within two inches of the casting cover. The exposed end of
the shaft shall be temporarily sealed until such time as the frame and
cover are permanently installed. The riser frame and cover shall be
permanently set when so authorized by the Engineer. The frame shall
be centered on the riser shaft so that the pipe does not touch the
frame.
When the frame has been set to final grade, a concrete block
shall be poured around the frame, not touching the pipe, to support
the frame on the adjoining ground. The block shall be rectangular,
the width of the riser trench plus 3 inches on each side, and of such
length that it extends eight inches to the rear of the frame and eight
inches to the front of the frame. The block shall be the depth of the
frame and extend to within two inches of the top of the frame.
A double layer of felted paper shall be placed around the pipe to
separate it from the concrete and the frame.
0-2.11 Wve and Tee Branches
0-2.11.1 General. Wye or tee branches shall be installed
shown on the Plans and as located in the field by the Engineer.
fittings and plugs shall be the same material as the sewer with
they are installed.
as
The
which
Plugs shall be installed to withstand pressure testing of the
line and still be removable for future connection without damage to
the fittings.
0-2.12 Buildinq Sewers
0-2.12.1 General. Building sewers shall be constructed of
materials conforming to section 207 of the Standard Specifications.
All requirements for the construction of sewer mains shall apply to
Building Sewers.
0-2.12.2 Location. Building sewers to be installed with new
sewer main construction shall be as indicated on the Plans, at
locations determined and marked in the field by the Engineer.
Building sewers being connected to existing sewer mains shall be
to wyes or tees when previously installed with the main sewer. The
locations of the wyes or tees are available at the District office.
When a wye or tee was not previously installed at the location where a
building sewer connection is to be made, a connection can be made by
either tapping the sewer main or by cutting in a wye.
D-2.12.3 Installation. Installing a building sewer at a point
not served by a previously installed wye or tee:
A) Tappinq. A hole will be drilled into the main sewer with a
power-driven cutter producing a clean hole of a diameter
compatible with the fitting being installed.
9
.
The fitting shall be either:
1. A neoprene rubber tee fitting held in place by a
tapered plastic insert. The building sewer pipe in
turn held into the neoprene tee with a mechanically
tightened stainless steel band meeting A.S.T.M. C 594-
72 Type A Specification.
2. A tap saddle of cast iron or high impact ABS plastic,
meeting A.S.T.M. Designation 0 2751, bonded to the main
sewer pipe with an epoxy cement. The building sewer
pipe shall be fastened to the saddle fitting with a
banded elastomeric coupling, meeting A.S.T.M. C 594-72
Type A Specification.
B) Cuttinq In. A section of the main sewer shall be removed
and a standard tee fitting inserted in its place. The tee
shall be fastened into the main sewer using elastomeric
couplings having corrosion-resistant tightening bands,
meeting A.S.T.M. C 594-72 Type A Specification. The
building sewer pipe shall be connected to the tee with
compatible joints or with a similar coupling.
0-2.12.4 Testinq. Building sewers connecting to main sewers
which are to be pressure-tested shall be installed before the test is
made. They shall be plugged at the upper terminus with a plug capable
of withstanding the air test and which can be removed without damage
to the building sewer pipe.
..
D-2.13 Flushing and Cleaninq Sewer Lines
After all backfilling, and before testing and final pavement
replacement, the contractor shall flush and clean all sanitary sewer
mains and trunks in the following manner:
0-2.13.1 Sewers Up To and Includinq 21 Inches in Diameter.
A heavy rubber ball, such as "Wayne Ball" manufactured by sidu
Company, Long Beach, California, or approved equal, inflated with air
and having an outside diameter equal to the interior diameter of the
pipe to be cleaned, shall be furnished by the contractor. The ball
shall be inflated so that it will fit snugly into the sewer line. The
ball shall be placed in the last (upper) structure on the main line
and water introduced into the structure back of the ball. The ball
shall pass through the pipe with only the pressure of the water behind
it. The rate at which the ball is allowed to pass through the pipe
shall be controlled by a rope at all times.
10
A sand trap and debris screen shall be used at the downstream
manhole to prevent loosened material from being flushed into the next
reach of pipe. Debris flushed out ahead of the ball shall be removed
at each manhole. Cleaning shall be conducted on each section of pipe
installed. Care shall be exercised not to feed the ball too rapidly
in order that all debris can be removed at each manhole.
0-2.13.2 Sewers 24 Inches and Over in Diameter. Contractor
shall manually clean all sewers 24 inches or over in diameter in such
a manner as to leave the sewer free of all debris.
D-2.14 Bank Protection & Erosion Control
0-2.14.1 Sacked Concrete Bank Protection. Sacked concrete bank
protection shall be placed as shown on the plans or as required by the
Engineer or by the agency having jurisdiction over the location.
0-2.14.1.1 Material. The materials used shall conform to
Section 72-3.02 of the State of California Department of
Transportation Standard Specifications. Concrete shall have a minimum
of 4 sacks of cement per cubic yard.
D-2.14.1.2 Placement. Bags shall be placed according to the
details on the Plans. If no details are shown, placement shall be
according to section 72.3.03, of the above cited Standard
Specifications.
0-2.14.1.3 Measurement and Payment. Sacked concrete bank
protection shall be measured at the mixer, payment will be at the bid
rate per cubic yard.
D-2.14.2 Redwood Erosion Control Structures. Redwood structures
for the deflection of moving surface runoff away from the sewer trench
shall be installed at the location shown on the Plans or as required
by the Engineer.
0-2.14.2.1 Construction and Payment.
built according to the details on the Plans.
structure as bid.
The structures shall be
Payment will be per
11
PART E
REPORTS BY ASSOCIATED GEOTECHNICAL ENGINEERS
INC.
March 13, 1991
Project 117-58, (-C095
File: 117-58.001
West Valley S3r.it~tion District
of Santa Clara County
100 East Sunnyoaks Avenue
Campbell, Cal ifornia 95008
Attention: Mr. Preston R. Nichols
RE: GEOTECHNICAL ENGINEERING INVESTIGATION
FOR THE PROPOSED ROSEMARY LANE SANITARY SEWER EXTENSION PROJECT
CAMPBELL, CALIFORNIA
Gentlepersons:
This repcrt :Jrese!1ts the results of our geotechnical engineering investigation
for the proposed sanitary sewer extension along Rosemary Lane )n Campbell,
California. The purpose of this investigation is to evaluate the surface and
subsurface conditions in the general vicinity of the proposed sewer 31 ignment
and to provide reccrr.mendations concerning the geotechnical engineering aspects
of the proposea development.
PROPOSED DEVELOPMENT
As presentlj planned, the project of the proposed sewer extension would consist
of installation cf approximately 600 lineal feet of new 6-ino::n j"tameter sewer
pipe secticns with invert at a depth of approximately 7 feet bel(.1W thE existing
street graae.
The proposed sewer would extend easterly along Rosemary Lane from the end of an
existing 6-inch diameter sewer located approximately 150 feet east of the
intersection of Winchester Road and Rosemary Lan~, tc a distance of
approximately 600 feet. Approximate location of the proposed SF.~er extension is
shown on the SHe Plan, Figure 1.
Open cut excavation is presently considered for the proposed sewer installation.
Excavation depth would average approximately 7.5 feet. The excavated trench
will be backfilled with 3/4-inch minus clean crush rock around the pitJe and up
to a level at least 6 inches above top of the pipe. and the remaining trench
1400 Dell Avenue. Suite D, Campbell, California 95008 Phone: (408) 378-0350 Fax: (408) 378-7361
West Valley Sanitation District
Project 117-58, C-6095, March 13, 1991
will be backfilled with on-site soils and/or import structural fill, if
required, except for the area where pavement structural section is to be
constructed. The on-s ite soil sand/or import structu ra 1 fill wi 11 be compacted
to a minimum of 90 percent relative compaction, except for its upper portion
situated within the limit 24 inches below bottom of the proposed asphaltic
concrete section, which will be compacted to a minimum of 95 percent relative
compaction. Additionally, a pavement structural section, consisting of 3 inches
of Type B asphaltic concrete and 12 inches of Class 2 aggregate base will be
constructed to complete the trench backfilling operation. Class 2 aggregate
base will be compacted to a minimum of 95 percent relative compaction.
SCOPE OF WORK
The scope of work performed in this investigation included a site
reconnaissance, subsurface exploration, laboratory testing, engineering analysis
of the field and laboratory data, and preparation of this report. The data
obtained and analysis performed were for the purpose of providing design and
construction criteria for grading and earthwork, and trench backfill.
FINDINGS
A subsurface exploration was made on February 26, 1991 using a rubber-tired
backhoe equipped with a 24-inch-wide excavation bucket. A total of one (1)
exploratory trench was made to a maximum depth of 6.5 feet below the existing
street grade. Approximate location of the exploratory trench is shown on the
Site Plan, Figure 1.
Soils encountered in the exploratory trench were continuously logged in the
field by our representative and described in accordance with the Unified Soil
Classification System (ASTM-D2487). Photograph of the subsurface soil s exposed
in the trench is presented on Figure 2. Log of the trench and a key for the
soil classification are presented in Appendix A.
Representative samples were obtained from the exploratory trench at selected
depths appropriate tn the investigation. All samples were taken to our
laboratory for futher evaluation and testing. Laboratory testing consisted of
tests for natural moisture content, grain size classification, and compaction.
Results of the laboratory tests are presented on the trench log at the
appropriate depth and on Figures B-1 and B-2 in Appendix B.
The trench log shows our interpretation of the subsurface conditions on the date
and at the location indicated, and it is not warranted that they are
representative of subsurface conditions at other location and time. The strati-
fication lines on the logs represent the approximate boundary between soil types
and the transition may be gradual.
117-58.001
AGE, INC.
Page 2
West Valley Sanitation District
Project 117-58, C-6095, March 13, 1991
A. SURFACE CONDITIONS
The site of the proposed sewer extension is essentially level and presently
covered with a pavement structural section of 3-inch-thick asphal tic concrete
and 8-inch-thick aggregate base.
B. SUBSURFACE CONDITIONS AND GROUNDWATER
Subsurface materials encountered below the existing pavement section consisted
generally of dark brown, fine-grained clayey sands to a maximum depth explored
of 6.5 feet below the existing street grade. The sands contain approximately 45
percent (by weight) of silts and clays.
The subsurface exploration was also used to determine actual location of the end
of the existing 6-inch diameter sewer from which the proposed new sewer extends.
The exploration indicated that bottom of the end of the existing sewer was
located at a depth of approximately 6.5 feet below the existing street grade and
was founded on approximately 6 to 8 inches thick of clean crush rock.
Free groundwater was not encountered during excavation of the exploratory
trench. It should be noted, however, that fluctuation of localized perched
groundwater and regional groundwater level may occur due to variations in
rainfall, temperature, construction related activities, and other factors not
evident at the time of our field investigation.
CONCLUSIONS AND RECOMMENDATIONS
From a geotechnical engineering standpoint, we judge that the project site is
suitable for the proposed sewer extension, provided that the conclusions and the
recommendations presented in this report are incorporated in the design and
construction considerations, project plans and specifications.
The opinions, conclusions and recommendations presented in this report are
contingent upon AGE, Inc. being retained to review the final design plans and
specification", and to observe and test during the sewer install;~tions. The
analysis and recommendations submitted in this report are based ufion our site
reconnaissance together with the information obtained from the exploratory
trench made at the approximate location indicated on the Site Plan, Figure 1.
This report does not reflect any variations which may occur at other locations.
The nature and extent of variations in subsurface conditions may not become
evident until sometime during the course of construction. If variations then
appear, it will be necessary to reevaluate the recommendations presented in this
report after making on-site observations during construction and noting the
characteristics of such variations. We assume no responsibility for
construction compliance with the design, specifications, or recommendations
unless we have been retained to perform on-site review during the course of
construction.
117-58.001
AGE, INC.
Page 3
West Valley Sanitation District
Project 117-58, C-6095, March 13, 1991
A. PIPELINE CONSTRUCTION
1. General
All grading and earthwork should be performed under the observation of
geotechnical engineer to assure proper site preparation, construction
excavations, as well as selection, placement and compaction of fill and backfill
materials. All earthworks should be performed in accordance with the recommen-
dations presented in this report.
2. Clearing and Site Preparation
Prior to earthwork operations, areas to receive pipeline should be cleared of
all deleterious materials and obstructions including pavement structural section
and any buri ed util i ty 1 i nes. Hol es resulti ng from the removal of underground
obstructions below the proposed pipeline bearing level should be cleared and
backfilled with suitable material compacted to the requirements given below
under Item A.4., "Compaction."
3. Excavation
The results of our investigation indicate that conventional earthmoving
equipment would be suitable for the proposed pipeline excavation. Equipment
such as bulldozers, scrapers, loaders, and backhoes could generally work within
the excavation.
For installation of the proposed 6-inch diameter sewer, the excavation depth
will be approximately 7.5 feet, and we judge that it would be possible to
accomplish the construction excavation and meet the State safety requirements by
conventional sheeting.
4. Compaction
Trench backfill should be placed in lifts not greater than 8 inches in
uncompacted thickness and compacted by mechanical means only to a minimum degree
of compaction of 90 percent of laboratory maximum density as determined by ASTM
0-1557-78. Water jetting is not allowed. The upper surface 24 inches of the
trench backfill below bottom of the asphaltic concrete section should, however,
be compacted to a minimum degree of 95 percent relative compaction.
B. PIPELINE TRENCHES
The pipeline trenches should be backfilled with compacted structural fill in
accordance with the requirements presented below:
117-58.001
AGE, INC.
Page 4
West Valley Sanitation olstrict
Project 117-58, C-6095, March 13, 1991
1. Bedding
Bedding material should be placed at least 6 inches below the planned invert
elevation, or to a sufficient depth required to provide a stable working
surface, whichever is thicker. The bedding material should extend at least 6
inches above the top of the pipe and at least 4 inches, but not to exceed 6
inches, from both sides of the pipe in order to provide adequate lateral support
and protection to the pipe during subsequent backfilling and compaction
operation.
Pipe bedding should conform to the requirements presented in Section 200-1.2 of
the Standard Specifications of the County of Santa Clara for Public Works
Construction, latest edition. Pipe bedding should consist of clean granular
material. We recommend that 3/411 minus clean crush rock be used as bedding
material, and should conform to the following gradation:
Sieve Sizes
% Passinq
111
3/411
1/211
3/811
No. 4
100
90-100
30-60
0-20
0-5
Bedding material should be compacted to at least 90 percent relative as
determined by ASTM Test 0-1557-78.
2. Subsequent Backfill
2.1. On-Site Materials
The on-site materials excavated below bottom of the existing asphaltic concrete
section are suitable for use as subsequent trench backfill, provided that they
have organic content of 2 percent or less by volumr., and contain rocks or lumps
less than 4 inches in greatest dimension and less than 15 percent larger than
2.5 inches. These materials should be placed in lifts not greater than 8 inches
in uncompacted thickness and compacted to a minimum of 90 percent relative
compaction. The upper surface trench backfill situated within the limit 24
inches below bottom of the proposed asphaltic concrete section should, however,
be compacted to a minimum of 95 percent relative compaction.
Results of the laboraotry testing indicate that the moisture content of the
existing on-site soils is approximately 17 percent, which is somewhat higher
than a desired range of moisture for achieving the minimum 95 percent relative
compaction. For this reason, certain amount of aeration effort may be required
to lower its moisture by approximately 2 percent.
117-58.001
AGE, INC.
Page 5
West Valley Sanitation District
Project 117-58, C-6095, March 13, 1991
2.2. Imported Soils
In lieu of the excavated on-site soils, imported soils may be used as subsequent
trench backfill. In addition to the preceeding requirements for "On-Site
Materials," imported soils should be predominately granular with a plasticity
index between 4 and 12. Imported trench backfill should be placed and compacted
in accordance with the requirements previously outlined under Item A.4.,
"Compaction." The upper surface 12 inches of trench backfill should consist of
Class 2 aggregate base rock.
2.3. Class 2 Aggregate Base
A minimum 12-inch-thick Class 2 aggregate base is required beneath the proposed
asphaltic concrete section. Class 2 aggregate base should conform to the mini-
mum requirements presented in Section 25 and 26 of the California Department of
Transportation Standard Specifications, latest edition.
Class 2 aggregate base should be placed in lifts not greater than 8 inches in
uncompacted thickness and compacted with mechanical means only to a minimum
degree of 95 percent relative compaction as determined by ASTM Test 0-1557-78.
LIMITATIONS OF INVESTIGATION
Our services consist of professional oplnlons and recommendations made in
accordance with generally accepted geotechnical engineering principles and
practices. This warranty is in lieu of all other warranties, either express or
imp 1 i ed .
This report has been prepared in order to aid in the evaluation of the proposed
sewer extension. In the event any changes in the design or location of the
improvement are planned, our conclusions and recommendations shall not be
considered valid unless the changes are reviewed and the conclusions of this
report modified or verified in writing by AGE, Inc.. .Pa
The following figures and appendices are enclosed and complete this report:
Fi gure 1
Fi gure 2
Appendix A
Site Plan
Photograph of Exposed Exploratory Trench
Field Investigation
Key to Exploratory Trench Log (Figure A-I)
Exploratory Trench Log, T-l
Appendix B
Laboratory Testing
Grain Size Classification (Figure B-1)
Compaction Test Results (Figure B-2)
117-58.001
AGE, INC.
Pa ge 6
West Valley Sanitation District
Project 117-58, C-6095, March 13, 1991
If you have any questions of our findings, please contact us.
Very truly yours,
AGE, INC.
~~
/B~l~ ~~ Un
Project Principal
Geotechnical Engineer No. 526
AR/BML:amh
(5 copies submitted)
Attachment
117-58.001
AGE, INC.
Pa ge 7
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West Valley Sanitation uistrict
Project 117-58, C-6095, March 13, 1991
APPENDIX A - FIELD INVESTIGATION
The field investigation consisted of a site reconnaissance and a subsurface
exploration program performed on February 26, 1991. A rubber-tire backhoe
equipped with a 24-inch bucket was arranged by the District and used to explore
and sample the subsurface materials. One exploratory trench was excavated to the
maximum depth explored of 6.5 feet below the existing street grade. Approximate
location of the trench is shown on the Site Plan, Figure 1. Exposed trench
conditions are shown in a photograph presented on Figure 2. The exploratory
trench was backfilled immediately after completion of our field investigation
and covered with cold-patch asphaltic concrete.
Soils encountered in the exploratory trench were continuously logged in the
fi el d by our representati ve and descri bed in accordance with the Unifi ed Soil
Classification System (ASTM 0-2487). Log of the trench as well as an
explanation of the soil classification system (Figure A-I) are included as part
of this appendix.
Representative soil samples were obtained from the exploratory trench at
selected depths appropriate to the investigation and were taken to our
laboratory for further evaluation and appropriate testing. Results of the
laboratory tests performed on the selected samples are presented in Appendix B
and on the trench log.
Changes in the subsurface condition may occur with the passage of time due to
natural processes and/or the works of man either on this or adjacent properties.
Thus the trench log shows our interpretation of the subsurface conditions on the
date and at the location indicated, and it is not warranted that they are
representative of subsurface conditions at other locations and times. Also, the
stratification lines on the log represent the approximate boundary between the
subsurface materials encountered and the transition may be gradual.
117-58.001
AGE, INC.
Page A-I
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PRIMARY DI\" .wlONS
GRAVELS Clean
more than half Gravels
of coarse (less than
fraction is 5% fines)
larger than Gravel
No.4 sieve with
fines
SANDS
more than half
of coarse
fraction is
smaller than
No.4 sieve
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Sands
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with
fines
Group
Symbol
GW
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SC
ML
CL
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MH
CH
PT
SECONlJ....RY DIVISIONS
well graded gravels, gravel-saud mixtures
little or no fines.
poorly graded gravels or gravel-sand
mixtures, little or DO fines.
silty gravels, gravel-sand-silt mixtures,
non-plastic fines.
clayey gravels, gravel-sand-clay mixtures
plastic fines.
well graded sands, gravelly sands, little
or no fines.
poorly graded sands or gravelly sands,
little or no fines.
silty sands, sand-silt mixtures, non-
plastic fines.
clayey sands, sand-clay mixtures, plastic
fines.
inorganic silts and very fine sands, rock
flour, silty or clayey fine sands or clayey
sil ts with sl1ght plasticity.
inorganic clays of low to medium plasticity
gravelly clays, sandy clays, silty clays,
lean clays.
organic silts and organic clays of low
plalJt1clty .
Inorganic silts, micaceous or disoma-
ceous fine sandy or silty soils, elastic.
inorganic clays of high plasticity, fat clays.
peat and other highly organic sol1s.
DEFINITION OF TERMS
U.S. Standard Series Sieve Clear Square Sieve Openings
200 40 10 4 3/4" 3" 12"
SAND GRAVEL OOnBLI
SIL 1'5 & CLAYS I medium , fine I coarse BOULDE
fine coarse
GRAIN SIZES
SANDS,GRA':ELS, STANDARD PLASTIC SILTS ,...Tn confined STANDARD
AND NON-PLASTIC PENETRATION AND CLAYS Compressi ve PENETRA TIO .;r
Strepgth
SIL 1'8 'R1 nU.'F; 1Ft. tnn<:. / <<t ft t:ll nu'", 1ft
very loose 0- 4 very soft 0-1/4 0-2
loose 4-1.0 soft 1/4 - 1/2 2-4
medium dense 10-30 firm 1/2 - 1 4-8
dense 30-50 stiff 1-2 8-16
very dense over 50 very stiff 2-4 16-32
hard over 4 over 32
RELATIVE DENSITY CONSISTENCY
KEY TO THE EXPLORATORY TRENCH LOG
Unified Sol1 Classification System (ASTM 1)-2487)
ASSOCIATED GEOTECHNICAL PROPOSED ROSEMARY LANE SANITARY SEWER PROJECT
ENGINEERS, INC. CAMPBELL, CALIFORNIA
Project No. Date FIGURE A - 1
San Jose, California 117-58 March 1991
SILTS AND CLAYS
liquid limit is
less than 50%
SIL TS AND CLAYS
liquid limits is
greater than 50%
HIGHLY ORGANIC SOn..s
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West Valley Sanitation uistrict
Project 117-5&, C-6095, March 13, 1991
APPENDIX B - LABORATORY TESTING
The laboratory testing program was directed toward a quantitative and
qualitative evaluation of the physical and engineering properties of the
materials underlying the site to depths influenced by the anticipated foundation
pressures and the materials exposed at the sewer trench walls.
The natural moisture contents were determined on selected samples and are
recorded on the trench log at the appropriate depths. Since water has a
significant influence on soil, the natural moisture content provides a rough
indicator of the soills compressibility, strength, and potential expansion
characteristics.
One grain size distribution test passing No. 200 sieve was performed on selected
sample and the results are presented on Figure B-1.
One laboratory compaction test was performed on the selected sample of the on-
site soils and the results are presented on Figure B-2.
117-58.001
AGE, INC.
Page 8-1
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FIGURE B- 2 - SUMMARY OF LABORATORY COMPACTIOl\l TEsr RESULTS
DATE SAMPLE SAMPLE OPTIMUM OPTIMUM REMARK
OF DRY DENSITY MOISTURE
TEST NO. DESCRIPTION ( PCF ) CONTENT CODE
I fl, \
2/27/91 1 CLAYEY SAND, finl 123.5 12.4 OM
~rained dark
brown
- -
EXPLANATION OF REMARK CODE:
OM: On-site materials
TEST METHOD TESTED B'Y DATE PROJECT NO PAGE
ASTM D 1557 - 78 AGE March 1991 117-58 1 of 1
Form ( 5/19/81 )
ASSOCIATED GEOTECHNICAL ENGINEERS, INC.
San Jose, California