City of Imperial Council Agenda
March 19, 2025
Imperial City Council
James Tucker – Mayor
Ida Obeso-Martinez – Mayor Pro-Tem
Stacy Mendoza – Council Member
Katherine Burnworth – Council Member
Robert Amparano – Council Member
AGENDA
Regular Meeting of the Imperial City Council
City Council Chambers
220 West 9th Street
Imperial, CA 92251-1637
March 19, 2025
Closed Session at 06:00 pm
Open Session at 07:00 pm
The City Council meetings are live-streamed on the City’s Facebook page www.facebook.com/cityofimperial. By remaining in the room, you are giving permission to be recorded.
All documents containing an executive summary and staff recommendation associated with open session action items are available for public inspection on the City’s website, www.imperial.ca.gov, seventy-two (72) hours before the posted meeting time.
Public Comments: Members of the public who wish to speak are encouraged to fill out a Speaker Slip and submit it to the City Clerk before the start of the meeting. Public comments are limited to 3 minutes. Comments may also be submitted by email to [email protected] one hour before the start of the meeting.
In compliance with the Americans with Disabilities Act, if you need special assistance to participate in the meeting, please contact the City Clerk’s Office by calling (760) 355-4373 or emailing [email protected]. Notification of 48 hours before the meeting will enable the city to make reasonable arrangements to ensure accessibility to this meeting [28 CFR 35.102-35.104 ADA title II]. 6:00 P.M. CLOSED SESSION
ROLL CALL
PUBLIC COMMENT FOR CLOSED SESSION ITEMS ONLY: At this time, members of the public may address the City Council on Closed Session items. Pursuant to State Law, the City Council may not discuss or take action on issues not on the meeting agenda (Government Code Section 54954.2). If you are compensated to communicate with City officials, you may be required to register and/or make certain disclosures as a lobbyist. Please see the City Clerk for additional information. There is a time limit of three (3) minutes for anyone wishing to address the City Council on these matters.
City of Imperial Council Agenda
March 19, 2025
CITY COUNCIL ADJOURNS INTO CLOSED SESSION
CONFERENCE WITH LEGAL COUNSEL: The City Council finds, based on advice from the City Attorney, that discussion in open session of the following described matter(s) will prejudice the position of the City in existing and anticipated litigation.
CONFERENCE WITH LEGAL COUNSEL – EXISTING LITIGATION (Section 54956.9) Claim Number: #CJP-3053047
CONFERENCE WITH LEGAL COUNSEL - ANTICIPATED LITIGATION
Significant Exposure of Litigation - G.C §54956.9 (d)(2) Number of Potential Cases: 1
CONFERENCE WITH REAL PROPERTY NEGOTIATORS
Property: 063-054-038 In the vicinity of the northwest corner of Highway 86 and Belford Agency Negotiator: City Manager and Development Management Group, Inc. (Michael Bracken) Negotiating Parties: Dr. Mervat Kelada
Under negotiation: Price and terms of payment
Property: 063-121-004 northeast corner of 12th and N streets Agency Negotiator: City Manager and Development Management Group, Inc. (Michael Bracken) Negotiating Parties: Josh Quintero and Bojorquez
Under negotiation: Price and terms of payment
CONFERENCE WITH LABOR NEGOTIATORS – G.C.54957.6
Agency Representatives: City Manager
Employee Organization: Imperial Police Officers Association, Teamsters Local 542 & Employee Organization Management Supervisory,
Professional, Confidential, and Police Captain/Unrepresented 7:00 P.M. REGULAR MEETING
CALL TO ORDER
ROLL CALL
PLEDGE OF ALLEGIANCE
ADJUSTMENTS TO THE AGENDA: The City Council may amend the order, add urgency items, note abstentions or “no” votes on consent calendar items, and request consent calendar items be removed from the consent calendar for discussion. The City Council may also remove items from the consent calendar before that portion of the agenda. The City Council may address these issues by entertaining a formal motion.
CITY ATTORNEY REPORT ON CLOSED SESSION
City of Imperial Council Agenda
March 19, 2025
PUBLIC COMMENT: Matters not appearing on the agenda: If you wish to address the City Council concerning any item within the City Council’s jurisdiction, please raise your hand and be acknowledged by the Mayor. At that time, state your name and address for the record. The Mayor reserves the right to place a time limit of three (3) minutes on each person’s presentation.
A. PRESENTATIONS:
A-1. World Water Day Proclamation
A-2. Friends of Imperial Parks Presentation by Tony Lopez, Parks and Recreation Director.
B. CONSENT AGENDA: All items appearing under the “Consent Agenda” will be acted upon by the City Council with one motion without discussion. Should any Council member or other person request that any item be considered separately, that item will then be taken up at the time as determined by the Mayor.
B-1. Approval of Warrants Report.
B-2. Ratification of Support Letter regarding SB 461 State Surplus Property.
B-3. Approval of City Council Minutes for the Regular Meeting of March 5, 2025.
C. ACTION ITEMS (DISCUSSION/ACTION):
C-1. Approval and adoption of a City of Imperial Lactation Policy.
Presenter: Kristen Smith, Human Resources Manager
Recommendation: Approval and adoption of a Lactation Accommodation Policy.
C-2. Approve a one-year contract extension with Moss, Levy and Hartzheim, LLP for professional auditing services for fiscal year 2024.
Presenter: Victor Manriquez
Recommendation: Approve a one-year contract extension with Moss, Levy and Hartzheim, LLP. for professional auditing services for the fiscal year ended June 30, 2024.
C-3. Adopt plans and specifications and authorize public bidding for the Manhole and Lift Station Rehabilitation and New Manhole Installation Project; Bid 2025-01.
Presenter: David Dale, Public Services Director
Recommendation: Adopt plans and specifications and authorize public bidding for the Manhole and Lift Station Rehabilitation and New Manhole Installation Project; Bid 2025-01.
C-4. Authorize the Parks and Recreation Department to surplus and dispose of two (2) non-operational fleet vehicles.
Presenter: Tony Lopez, Parks and Recreation Director
Recommendation: Authorize the Parks and Recreation Department to surplus and dispose of two (2) non-operational fleet vehicles.
City of Imperial Council Agenda
March 19, 2025
C-5. Approve Change Order No. 2 for the 7th, 10th & 14th St. Rehabilitation Project Bid No. 2024-01.
Presenter: Othon Mora, Community Development Director
Recommendation: Approve Change Order No. 2 for the 7th, 10th & 14th St. Rehabilitation Project Bid No. 2024-01.
C-6. Authorize the installation of a loading zone for paratransit services at the Imperial Village Apartments on 11th Street.
Presenter: Othon Mora, Community Development Director
Recommendation: Authorize the installation of a loading zone for paratransit services at the Imperial Village Apartments on 11th Street.
D. REPORTS:
D-1. Department Reports
D-2. City Manager Report
D-3. Mayor and Councilmember Reports
ADJOURNMENT: The next regular meeting of the Imperial City Council will be held on Wednesday, April 2, 2025.
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C]TY OF IMPER AL
Check Register Report
BANK: UNION BANK
Date
Time
Pa0e
0311312025
7 .46 an
1 Check
Number
Check Slatus
Date Vendor Name Check Description
UNION BANK Checks
123585 03i 12125 Printed
o3t12t25
03t12t25
o3t12t25
o3t12t25
o3t12t25
o3t12t25
123586
123547
123588
123592
123593
1235
Printed
Printed
Printed
Printed
Printed
Printed
195
7262
884
5956
656
7704
0467 401734517 02125 82603
9517-0065/2327 STDNEY
126248 82371
1P6X-FJ34-CL7K 82370
tNVo103718 RETSSUED 80987
2094 42409
123454
123581
123582
0303/25 Reconciled
03112125 Ptanled
03112125 Ptinled
03/0525 8040
3871
850
'123583
12358/,
0312/25 Printed
03112125 Ptinled
5201
2357
IDA OBESO.[.llARTINEZ
A NEW I\4ARKETING
ADAMSON POLICE
PRODUCTS
AIR I\4ED CARE NETWORK
ALLVALLEY FENCEAND
MATERIALS
ALLIANT INSURANCE
SERVICES
ALLIED WASTE
ALONSO SILVA
ALPHASITE LOGISTICS
AMAZON CAPITAL SERVICES
AOUA i.IETRIC
ARC PERFORMANCE
WELDING &
ART OBESO
AT&1 LONG DISTANCE
AT&T T/lOBILITY
AXIS [.,lETAL DESIGN, INC.
BABCOCK LABORATORIES,
tNc.
BAKER &TAYLOR BOOKS
BAKER DISTRIBUTING
COMPANY LLC
BASE HILL INC,
BLUETARP FINANCIAL. INC,
EOOT BARN HOLDINGS
ERAWLEY ANALYTICAL, INC,
ERIANNA ROBLES
CALIFORNIA STATE
DISBURSEI\4ENT
CANON U,S,A, INC
CARLOSARANZA
CHRISTOPHER SALGADO
CI. SOLUTIONS
CODE EXXPERTS. LLC
CODY COLE
COMI\4ERCIAL AVENUE
IRUCK &
COMPLETE PAPERLESS
SOLUTIONS
CONTROL PARTS
CONTROL SYSIEI\4S
ENGINEERING
CORE & I\4AIN LP
COUNTY MOTOR PARTS CO,
tNc
COUNTY OF SAN DIEGO. RCS
CPS HR CONSULTING
DAKOTABACKFLOW
COMPANY
DANIEL SCHLEYER
WASHTNGTON 3/2/25,3/5/25
BL24-OOOO93 - OVERPAYMENT 81945
tNV430094 82288
322.00
61.40 10,047.69
170.00
21.55 2880
3857
1851
8279
2662
4400
4391 80120
1,355.67
161,968.91
55.93 288.56
5,700.52
40,456.79
607.94
55.31 125.81
14.147.00
1,261.47
M0.80
764.00
72.49 2,706.88
654.65
23.06 11.94
121.37
1,900.00
215.00
1,399.24
9.150 00
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123598
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760 355-1158 3/4/25
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1569 82369
185006G8203 82606
59.86 2,244.98
4,355.69
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4,200.29
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03112125 Ptinled 6069
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7158
7808
8296
3858
455
3669
3859
3875
3329
6222
4338
3870
3860
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6857
8630
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4,230.68
w477952 82413
566050 82372
1,644.30
3.449.78
25tMPCPDN08 82293
TR-rNVo05657 82456
60736 82420
2,938.58
32s.00
122.37
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SUMMIT
|\4ARCH 2025
tNV-036332 82348
5,000.00
1A.255.92
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123629
123630
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1302
1056
1287
1573
569
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123633
123634
DAVID TURCH & ASSOCIATES
DEANGELO CONTRACTING
SERVICES
DELL IIIARKETING L,P
DE|\4CO. tNC.
DEPARTMENT OF JUSTICE
DESERT VETERINARY
GROUP
10803859829 82045
7569099 82554
795097 82455
313242 82287
3,029.63
463.42
98.00 110.00
Void/Stop Reconcile Vendor
Date Date Number
5842-03072025 82458
2U1830 42419
3003853 82459
123602
123603
203890911182191
FQ37927 82430
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123607
123608
123609
123610
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9999,6000/309 BUTTERFIELD
00026087 82038
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101952681 82225
coul-247463 82443
20250AOA2 A2266
2025-4228 42605
473.00
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CITY OF IMPERIAL
Check Register Report
BANK: UNION BANK
Dater
Time:
Page:
w13tn25
7:46 am
2 Check Status
Date
Vendor Name Check Description Amount
UNION BANK Checks
123635 0312/25 Printed
123639 03/12125 Printed
123651 0r12125 Printed
123652 03112125 Ptinled
123653 0312/25 Prinled
123654 03/12125 P.inled
DEVELOPMENT
MANAGEMENT GROUP
DHL EXPRESS - USA
DUDLEYS
ENTERPRISE FLEET
MANAGEMENT.
FERGUSON ENTERPRISES.
LLC
FLOCK SAFETY
FORENSIC DRUG TESTING
SERVICES
GEORGE FERNANDEZ
HARRIS
HASSAN GORJI
HEALTH AND HUMAN
RESOURCE
HOLTVILLE TRIBUNE
HOME DEPOT CREDIT
SERVICES
I,V REAL ESTATE
ltD
IMPERIAL COUNTY FIRE
OEPT
IMPERIAL COUNTY PUBLIC
HEALTH
IMPERIAL IRRIGATION
DISTRICT
IMPERiAL IRRIGATION
DISTRICT
IMPERIAL POLICE OFFICERS
ASSN,
IMPERIAL PRINTERS
IMPERIAL TRUSS & LUMBER
co.
IMPERIAL VALLEY
OCCUPATIONAL M
IMPERIALVALLEY PRESS
IMS INFRASTRUCTURE
MANAGEMENT
INFO SEND INC,
INGRAM LIBRARY SERVICES
IXOM WATERCARE INC,
JESSICA HURTADO
JESUS ALVAREZ
JRBADGES
K.C
'A/ELDING
& RENTALS.
rNc.
KIMBALL I\4IDWEST
KOBUS INC.
KOPPEL & GRUAER PUBLIC
FINANCE
LA BRUCHERIE IRRIGATION
SUPPLY
LABOR COMPLIANCE
CONSULTANTS
LEE TIRE CO,
LINCOLN LIFE
MAD GRAPHIX PRINTING &
MALLORY SAFETY AND
SUPPLY LLC
MARIAH GARCIA
MCDONALDS
MISSIONSQUARE. 304257
2815 FEBRUARY 2025 81150
019
4637
o2B
4264
102
5.500.00
123636
123637
123638
03h225 Ptinled
0:tt12125 Ptinled
0:Y12n5 Ptinled
3873
4203
8064
D23910770 A2440
201F 82149
575205A-030525 81949
58.16 396.00
13,278.81
123642
123643
123644
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0:t112125 Ptinled
1771
3862
8224
8717-0152/241 GAEERIAL
rNHMN0000817 82040
972s-0306/615 r-AS DUNAS
E0340227 APR 2025 82453
43.00 27,2U.51
'144.44
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3855
5134
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123647
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03i 1225 Printed
3039
2096
123648
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123650
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2226
2136
120
INV 56510 82272
2025 fiAa A2452
12,000 00
408 80
0101838 82382
8970811 82375
2,100.00
2,185 60
8622-0009/700 MORNINGSIDE
csP 92984602 82291
FEERUARY 2025 81144
184.65
10,097.9S
125.336.07
s0s6302 82619
24125 82415
MARCH 6 2025
3139598 03/11/25
109' AUTIS[.il BADGES 82290
299314C 82381
2723 82608
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58.611.16
4 004.00
1,747 20
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2!519 82380
a?4n1 a2379
4v2 42460
2025 RENEWAL 82186
25022a-17 a2226
28212941 7
86939131 81787
6926023 82411
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20651 82263
209881 82376
221
3187
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524.59
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5230
90 00
583 82
255.00
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5,345 40
1,843.70
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394.62
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103105200 82426
500-934 82408
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1,008.16
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61076€5 A2224
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333.67
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101
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Date Date Number
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03t/12125 Printed
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123674
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CITY OF I[,{PERIAL BANK UNION BANK
Dale
Time
Page
03t13lNN
7;46 am
3 Check
Number
Check Status
Date
voad/Stop Reconcile vendor
Date Date Number Check Oescriplion Amount
UNION BANK chscks
123681 03112125 Ptinled
123682 O3l12Bs tuinled
123683 03/1225 Printed
MOMETRIX TEST
PREPARATION
NC CHILD SUPPORT
CENTRALIZED
NEW BORDER TACTICAL, INC
NEW BORDER TACTICAL, INC
O'REILLY
ONE SOURCE OISTRIBUTORS
ONEA.RISSWEST HT SUMMIT
PATRICIA DOBBS
PITNEY BOVVES BANK INS
PITNEY BOVVES GLOBAL
FINANCIAL
PIXABYTES SOLUTIONS INC,
POLYDYNE INC.
PREMIER RENTALS
OT SANITATION
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RADAMESAVILES
RAMTECH ENTERPRISED LTD
RICARDO MACHI
RINGCENTRAL INC
ROVE ENGINEERING INC
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SAMUEL RABB
SC FUELS
SELLERS PETROLEUM
SERGIO SOTO
SHERWN.WLLIAMS
SHI INTERNATIONAL CORP
SPARKLETTS
STEPHANIE SANCHEZ
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STEWART TITLE OF CA
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LLC
THE STORYTELLERS BAND
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TUCKER MINI STORAGE
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UNIVAR SOLUTIONS USA INC
VENCER PUBLICAFFAIRS &
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1304-1 BALANCE 82383
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1127957 82425
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6.643.90
25.292.93
800.43
1,861.00
512.73
2.36 3.016.20
43.01 1.480.96
142.126.79
2.000.00
2.424.12
14.743.20
210.00
633.21
13,494.55
693.77
387.00
108.56
1,750.00
1,543.00
4209 81146
1304- DEPOSTT 82374
315.00
1.250.00
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6,965 64
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VISION TRAFFIC CONTROL
tNc
WAGEWORKS. INC 0225,OR39530 82461 100 00
Check Register Report
Vendor Name
3876
8633
2295
2295
4481
079
3856
7359
084
3179
3877
CITY OF IMPERIAL
Check Register Report
EANK: UNION EANK
Dale:
Time:
Pagel
03113tm25
7:46 am
4 Check
Number
Check Stalus
Date
Void/Stop Reconcile Vendor
Date Date Number
Vendor Name Check Description Amounl
UNION BANK ChecKs
0:Y1225 Printed
0312/25 Printed
1715 WAXIE SANITARY SUPPLY
WYMORE, INC,
82992881 82414
1239087 82428
3,738.71
441.17
Totalchecks: 142
Total Payments: 142
TotalPayments: 1,12
Checks Total (oxcluding void checks):
Bank Total (ercluding void checks):
Grand Total (gxcluding void checks):
895,553.34
895,553.34
895,553.34
123742
123743
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lumrs I uclicr - Malor
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K!lic lluarrtonh Councilmcmbcr
Ilobci Ampirl:rrxr - Col,tlcilmcrEhcr
Celifornia
(ll\(lt:Rt'
Lnttr n\l shEldr
Monday. March 10. 2025 r' \ \t.\N^CI:R
( n \'AlloRl{ti\
l\adrcflrra lumcr
State Senator Maria Elena Durazo
Chair. Senate I-ocal Government Committee
State Capitol. Room 407
Sacramento. CA 95814
Sute Senator Steve Padilla
Chair. Senate Govemmental Organization Commiltee
1020 N Street.584
Sacramento. CA 95814
Re: Senate Bill {61 (Padilla): State Surplus Properq: Cir;* of Imperial Dear Senator Durazo and Senator Padilla,
The Ciry of lmperial is pleased to offer our strong supporl of SB 461 by Senator Padilla. which w.ill facilitate the transfer olthe old California Highwal'Patrol headquarters to the City ol lmperial for use as their Imperial Police Department.
Currentlr'. the Citv of Imnerial Police I)cDanmenl operates t'rom a convened iuvenile dr'tention lacilitv that houses multiole citv functions- includinp Citv Hall and Public Servic es. This t Dresents several ooerational challenses includine: lack ol adeq uate soace lbr arrangcnlcn essential larv enforcement t'unctions such as elidence storaue and securitr concems lbr larr cntbrccmcnt oocrations as multiplc cirv dcDartments are housed in one building: and an outdared intiastruct ure that does not mcct conlcrllD() lau enforccment ne!-ds.
The City. of Imperial and the Police Department have conducted internal reviews ol'available space and unfbnunatell no existing city'<runed propenies are available u'hich remotell'meet the needs tbr policy operations and any currenl propeny ll,ould require extensive and costly.. modificarions to meet the Police Department's needs. Civen the city's location and its status as the oldest city in rhe County. no suitable commercial propenies exist within city limits.
The Califomia Highuay Parrol srarion locared at 233 I CA-867. Imperial cA. 92251 (APN 064- .,133-010- County of Imperial) will soon be vacated. The facility is located wirhin the boundaries of the City ollmperial. An Acquisition by the City
"r'ould
present a cost-effective solution that
aro toulH ru2lfu^r Arttut ' rMetrr^!. (l9,?!r ' nr (2501 15, a]/l ' t^3 lz60, lrt '1718 ' sww rs'L(^r'(^ Cov Alo{
uould accommodate the City and Police Department's growth requirements while enhancing public safety services fbr the expanding communit)'. The facility is already configured for law enfbrcement operations and would allow good accessibility for community members, and is centrally located within the city. The facility would minimize renovation costs and the need to convert a non-law enforcement facilit]'. At the same time. the CHP facilily would be unsuimble lor housing development given the unique characteristics ofthe property. such as fuel storage and refueling stations. evidence lockers and prison detention cells. Exchanging the propert)' from CHP to local law enforcement will malie the best and highest use of the existing facility.
SB ,16l would f-acilitare the transt-er of the CHP iacility to the City of Imperial. By transiening the t'acility to the City of Imperial. we can save tarpayer dollars while allorving the City to focus its limited resources on housing development and other priorities.
For these reasons. SB 461(Padilla) would further and improve our Imperial Police Department and we are proud to support SB 461(Padilla) and encourage your "aye" r'ote when it is heard in your committee.
S ince
l6res Tucker
,
' Mayor. City of Imperial
I mperial Citr ,'rrrrkrt3
Junes Tucker - Multtr
lda Obeso-Murtine; - Msyor Pro-'l'eur
Slucl' .Vendo:u - Coutrcil ilf euher
Katherine Eunrwonh Countil Mcnfiq
Roben .4nrparuno - Council Member
MINUTES
Regular Meeting of the Imperial City Council
City Council Chambers
120 West 9th Slreet
lmperial. CA 9225 I - 1637
March 5,2025
Closed Session at 06:00 pm
Open Session at 07:00 pm
6:00 P.\1. CLOSED SESSION
The meeting was called to order at 6:00 p.m.
Council Members Amparano, Bumworth, Mendoza, City Manager Morita, Assistant to the City Manager Garcia, and City Attomey Tumer.
Mayor Tucker arrived at 6:34 p.m.
Mayor Pro Tem Obeso-Martinez
CONFERENCE WITH LEGAL COUNSEL - EXISTING LITIGATION (Section 54956.9) Case Name: R. Collado
CONFERENCE WITH LEGAL COUNSEL - ANTICIPATED LITIGATION
Initiation oflitigation pursuant to paragraph (4) of subdivision (d) of Section 54956.9 Number of Potential Cases: I
CONFERENCE WITH tEGAt COUNSET - ANTICIPATED LITIGATION
Significant exposure to litigation - G.C 5sS+956.9 16i12, Number ofCases: I
CONFERENCE WITH LABOR NEGOTIATORS. G.C,5957.6
Agency Designated Representatives: City Manager
Employee Organization: Imperial Police Officers Association, Teamsters Local No. 542 and Employee Organization Management Supervisory, Professional, Confidential, and Police Captain/Unrepresented Pdge I of4
City of lmpenal Co ncil Agenda Minntes
Mqrch 5, 2025
CALLED TO ORDER:
ROLL CALL:
ABSE\'I':
PUBLIC CONIMENT FOR CLOSED SESSION ITEMS ONLY: NONC
CONFERENCE WITH LEGAL COUNSEL:
7:00 P.M. REGULAR MEETING
CALL TO ORDER: Mayor Tucker called the meeting to order at 7:04 p.m ROLL CALL:
ABSENT:
Council Members Amparano, Bumworth, Mendoza, and Mayor Tucker Mayor Pro Tem Obeso-Martinez
PLEDGE OF ALLEGIANCE: The Pledge of Allegiance was led by Othon Mora.
ADJUSTMENTS TO THE AGEN The City Manager noted that item A-3 will be rnoved to a future date, and item B-4 will be transferred to action items as C-4 CITY ATTORNEY REPORT ON City Attomey Tumer stated that direction was given for two items of anticipated litigation
PUBLIC COMMENT:
Public comment received by Peter Martinez about educational pathways at Imperial Valley College.
Public comments reaeived by Rigoberto, Gerald Robinson, Sean Arviso, Ke'lly Moreno, Elizabeth Wamer, and Maryann Jarvis regarding a halfuay house in the city of Imperial.
Mayor Tucker called for a recess at 7:39 p.m. to collect contact information from the public regarding the halfway house. Mayor Tucker resumed the meeting at 7:51 p.m.
A-1.
A-2.
A-3.
Proclamation presentation for Women's History Month
Proclamation presentation for Engineer's Week
Friends of Imperial Parks presentation by Tony Lopez, Parks & Recreation Director Consent agenda B-4 was moved to action item C-4
Moved by Mendoza, seconded by Amparano to approve action items B-1 to B-3.
AYES: Amparano, Bumworth, Mendoza, and Tucker
NOES: None
ABSTAIN: None
ABSENT: Obeso-Martinez
MOTION CARRIES:4-0
Approval of Warrants Report.
Approval of City Council meet'ing minutes for the Regular Meeting of February 19,2025 Receive and file the independent city audit report for fiscal year 2023.
Declare Public Services equ'ipment as surplus and authorize the sale and disposal.
B-1.
B-2.
B-3.
B-4.
City ofhfipeial Council Agenda Minutes
March 5, 2025
A. PRESENTATIONS:
B. CONSENT AGENDA:
C. ACTION ITENIS (DISCUSSION/ACTION):
C-4. Declare Public Services equipment as surplus and authorize the sale and disposal.
Mayor Tucker asked for a motion on C-4 before starting C-1.
Moved by Mendoza, seconded by Amparano to approve Public Services equipment as surplus and authorize the sale and disposal.
AYES: Amparano, Bumworth, Mendoza, and Tucker
NOES: None
ABSTAIN: None
ABSENT: Obeso-Martinez
MOTION CARRIES:4-0
C-1. Approve the purchase of two (2) new 2024 Ford F250 service trucks for the Water Treatment Plant
Presenter: David Dale, Public Services Director
Recommendation: Approve the purchase of two (2) new 2024 Ford service trucks for the Water Treatment Plant.
Moved by Amparano, seconded by Burnworth to approve the purchase of two new 2024 Ford service trucks for the Water Treatment Plant.
AYES: Amparano, Bumworth, Mendoza, and Tucker
NOES: None
ABSTAIN: None
ABSENT: Obeso-Martinez
MOTION CARRIES:4-0
C-2. Approve an agreement between the City of tmperial and the Imperial lrrigation District (llD) for an IID Pole Attachment Program.
City ol Impeial Council Agenda Minutes
March 5,2025
Presenter: R. Alejandro Estrada, DolT Director
Recommendation: Approve an agreement between the City of lmperial and the Imperial Irrigation District (llD) for an IID Pole Attachment Program.
Moved by Burnworth, seconded by Amparano to approve an agreement between the City of Imperial and the Imperial Irrigation District for an IID Pole Attachment Prcgram.
AYES: Amparano, Bumworth, Mendoza, and Tucker
NOES: None
ABSTAIN: None
ABSENT: Obeso-Martinez
MOTION CARRIES:4-0
C-3. Approval and adoption of the City of Imperial's Vacancy, Recruitment, and Retention Efforts Policy.
Presenter: Kristen Smith, Human Resources Manager
Recommendation: Approval and adoption of the City of Imperial's Vacancy, Recruitment, and Retention Efforts Policy.
Moved by Burnworth, seconded by Mendoza to approve and adopt the City of Imperial's Vacancy, Recruitment, and Retention Efforts Policy.
AYES: Amparano, Burnworth, Mendoza, and Tucker
NOES: None
ABSTAIN: None
ABSENT: Obeso-Martinez
MOTION CARRIES:4-0
D. REPORTS:
D-1.
D-2.
D-3.
Departments reported on their activities since the last city council meeting.
City Manager Report: None
The mayor and council members have reported on their activities since the last city council meeting and upcoming events.
Citlt of lmpeial Corncil Agenda Minutes
March 5, 2025
ADJOURNMENT:
Seeing no further business before the Council, Mayor Tucker ended this meeting at 8:29 p.m. and adjoumed until the next council meeting on March 19, 2025, at 7:00 p.m.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the official seal of the city of Imperial, California, this 19th day of March 2025.
KRISTINA SHIELDS
City Clerk
DATE SUBMITTED
SUBMITTED BY
DATE ACTION REQUTRED
Human Resources
03t19t2025
IMPERIAL CITY COUNCIL
AGENDA ITEM
Agenda ltem No.
COUNCILACTION (X)
PUBLIC HEARING REQUIRED 0 RrsoLUTtoN ( )
oRDINANCE tsr READING ( )
oRDtNaNCr zND neaotNc ( )
CITY CLERK'S INII'IALS ()
SUBJECT
DEPARTMINT INVOI.VED: Human Resources
BACKGROUND/SUMMARY:
The City of lmperial is requesting the Council's consideration in the adoption of the Lactation Policy.
The City has developed this policy in accordance with applicable state and federal law as the city is committed to providing a supportive environment for employees who desrre to express milk for their infant child by providing an appropriate space and a reasonable amount of break time for it.
This policy will provide direction to staff on how to request lactation accommodations and what to expect during the accomodation process. The policy provisions apply to all city staff.
FISCAL IMPACT: NOT TO EXCEED
There is no fiscal impact associated with thas action.
fINANCE
INITIAI S
S'I'AFF RLCOMMENDA'I'ION:
Recommendation to approve and adopt the Lactation
Policy.
DEPT, INITIALS fros
MANACER.S RECOMMENDATION: Approve Staff Recommendation
CIIY
MANAGER s
INTTIAI S
a
MOTION
SECONDED
AYE S:
NAYES:
ABSTJN'I':
APPROVED 0
DISAPPROVED ()
RIJF.( l Il l)
I)F lrLRRl I)
(
(
)
)
03t11t2025
c-l
DISCUSSION/ACTION:
1. Approval and adoption of the Lactation Policy.
\,w1
REFERRED'I'O:
POLICY NAME:
Lactation Policy
AUTHORITY:
City of lmperial
APPLICATION:
All Employees
DATE APPROVED:
Pending CC Approval
City Council Agenda ltem - March 19, 2025
t4{
Crlifornit
CITY OF IMPERIAL
LACTATION POLICY
TABLE OF CONTENTS
I. PURPOSE
II. APPLICABILITY
III. HOW TO MAKE A REQUEST
IV. EMPLOYEERESPONSIBILITIES
V. POLICY
A. Lactation Breaks
B. Lactation Facilities
VI. PROHIBITION ON DISCRIMINATION OR RETALIATION
VII. EMPLOYEECOMPLAINTS
APPENDIX A: LACTATION ACCOMMODATION REQUEST FORM
APPENDIX B: EMPLOYEE ACKNOWLEDGMENT OF RECEIPT OF
LACTATION POLICY
2 2
2 2
3 3
4 4
4 t)
7 Dtaft 0211212025 Page 1 of 7 Lactation Policy
CITY OF IMPERIAL
LACTATION POLICY
Calilornie
I. PURPOSE
A. The City of lmperial ("City") rs committed to providing a supportive environment that enables employees who desire to express milk for the employee's infant child an appropriate space and a reasonable amount of break time to do so in accordance with applicable state and federal law.
II. APPLICABILITY
A. This policy applies to all City employees and all City facilities/work sites.
III. HOW TO MAKE A REQUEST
A. Before the start of an employee's child bonding leave, or before the start of an employee's return to work from pregnancy disability leave for an employee that is not taking child bonding leave, or upon request, the Human Resources Department will provrde the employee wrth a copy of this policy and a "Request for Lactation Accommodation" form (Appendix A).
B. The employee must return the form to the Human Resources Department no later than 10 business davs before returnin g from leave or when the employee would like to start taking lactation breaks. This advance notice allows the City reasonable time to prepare the necessary accommodations.
C. The Human Resources Department will respond via email or other written communication within a reasonable period of time to acknowledge the request and provide a written response.
D. Any additional lactation-related accommodation requests not explicitly addressed in this policy should be directed to the Human Resources Department for case-by-case evaluation. The City will provide reasonable accommodation to the extent it is able.
IV. EMPLOYEERESPONSIBILITIES
ALL EMPLOYEES SHALL
A. Comply with the provisions of this policy.
B. Coordinate with Human Resources to schedule their lactation breaks ahead of time.
C. Share the established schedule with their direct supervrsor. (f-'i
DGR02l12l2025 Page 2 of 7 Lactation Policy
CITY OF IMPERIAL
,{'=tit LACTATION POLICY
C,lilonh
HUMAN RESOURCES RESPONSIBILITIES
The Department Director or designee shall have the following responsibilities A. Work with the supervisor to ensure a proper lactation facility is within a reasonable distance from the employee's designated work area whenever an employee in their department has requested lactation accommodation.
B. Coordinate with the employee to establish a schedule of designated lactation break times beforehand for the employee to share with their supervisor.
SUPERVISOR RESPONSIBILITIES
ln addition to the employee responsibilities, supervisors shall have the following respon s ibilities:
A. Review with the employee their designated lactation break times and establish coverage as needed while the employee is on their designated lactation breaks.
B. Refer any employee to Human Resources who requests information on the City's Lactation Policy or how to request lactation accommodation. v. PoLtcY
A. Lactation Breaks
1. The City will provide a reasonable amount of break time to accommodate an employee desiring to express breast milk for the employee's infant child during the first twelve months. Employees desiring to express breast milk beyond twelve months for an infant child may request an accommodation which will be reviewed on a case-by-case basis.
2. Employees must coordinate with Human Resources to establish a schedule of designated lactation breaks.
3. Employees can use their regular break period for lactation purposes. lf the employee takes a lactation break at times other than their provided break times, then the lactation break will be unpaid, or the employee may choose to use accrued leave. An employee may request from their supervisor the option to make up their unpaid time within that same day by flexing their schedule. Flexing their schedule will be determined on a case-by-case basis by the employee's supervisor to determine if it is feasible for their department to accommodate this request.
4. Employees must share with their supervisor and receive prior approval before taking breaks other than their regular provided break periods.
Employees must keep an accurate record of any unpaid lactation breaks that are in addition to the regular breaks they are provided.
Dtaft02l12l2O25 Page 3 of 7 Lactation Policy
Ctt d
CITY OF IMPERIAL
LACTATION POLICY
Calilornia
5. Once the supervisor approves the lactation break, the breaks should not be interrupted except for emergencies or unforeseen circumstances.
6. The supervisor must coordinate with other department employees to provide coverage for the employees taking lactation breaks.
B. Lactation Facilities
1. The City will provide a lactation room or location other than a bathroom that is in close proximity to the employee's work area that is shielded from view, can be locked, and is free from intrusion while being used for expressing milk. Human Resources should identify an appropriate space in advance of an employee's retu rn to work after childbirth. An appropriate location could be considered:
a. An employee's own office;
b. Another private office while not in use or;
c. Any available area with a locked door where the employee can have privacy from others for lactation purposes.
2. The space must be safe, clean, and free of hazardous materials and must provide:
a. Access to electricity for an employee to operate an electric or batterypowered breast pump. b. A surface for the employee to place their breast pump, personal items, and a place to sit.
c. A refrigerator suitable for storing milk close to the employee's workspace.
d. Close proximity to a sink with running water.
VI. PROHIBITION ON DISCRIMINATION OR RETALIATION
The City prohibits discrimination or retaliation against lactating employees for exercising their rights to express breast milk for their infant child at work.
VII. EMPLOYEE COMPLAINTS
Employees who believe they have been denied appropriate accommodation under this policy or have been subjected to discrimination or retalation in violation of the lactation accommodation requirements under California law are encouraged to notify Human Resources.
Drafi 0211212025 Page 4 of 7 Lactation Polcy
cq{
CITY OF IMPERIAL
LACTATION POLICY
Crlilornir
Employees have the right to file a complaint with the nearest Labor Commissioner's Bureau of Field Enforcement (BOFE) Office. They may visit How To Report Violation to BOFE for more information regarding California's complaint process.
Dtaft02l12/2025 Page 5 of 7 Lactation Policy
(f'='b
CITY OF IMPERIAL
LACTATION POLICY
.. .,.. I APPENDIX A
LACTATION ACCOMMODATION REQUEST FORM
(Requests for accommodation must be submitted to Human Resources 10 days prior to the requested start date.)
Employee name:
Job title/department
Supervisor's Name:
Date Accommodation will begin:
I have read the City of lmperial's lactation accommodation policy, and I am requesting an accommodation to allow for lactation breaks while at work as follows (check allthat apply) _ A private space to express breast milk.
Lactation breaks that run concurrently with rest breaks already provided Additional unpaid break time needed
Other
Em ployee siBnature Date
,r it I it ,i * * * ,l * * * I * * '* * * + * rt 'rt 'i 'i 't * ,i ,i * t fo be completed Humon Resources dnd rcviewed with the supevisot. llpon completion, o copy will be provided to the employee and the supervisor, with the oiginol tequest rctoined in the employee's medicol file.
Date received
Your request for lactation break accommodations is
_ Approved as requested
_ Approved with modifications
Denied due to:
Supervisor Signature Date
Human Resources Signature
Drch 0211212025 Page 6 of 7 Lactation Policy
Date of request:
Current rest break times:
_ Lactation breaks in addition to already provided rest breaks.
Date
CITY OF IMPERIAL
LACTATION POLICY
APPENDIX B
EMPLOYEE ACKNOWLEDGMENT OF
RECEIPT OF LACTATION POLICY
Caliloltit
My signature below acknowledges that I have received my copy of the City of lmperial's Lactation Policy ("Policy") and that I have read the Policy and understand my rights and obligations under the same.
I understand that this Policy only represents the City of lmperial's current policies, procedures, rights, and obligations. Regardless of what the Policy states or provides, the City of lmperial retains the right to add, change, or delete provisions of the Policy at any time and in its sole discretion.
By signing below, I agree to abide by all provisions of the Policy. I understand that failure to fully comply with all provisions of the Policy may lead to disciplinary action, up to and including termination.
SIGNATURE
(RETAIN IN EMPLOYEE PERSONNEL FILE)
PRINT FULL NAME:
DATE:
Dtaft02l12l2025
DATE SUBMITTED
SUBMITTED BY
DATE ACTION REQUIRED
3112125
Victor i,4anriquez
3t19t25
IMPERIAL CITY COUNCIL
AGENDA ITEM
Agenda Item No. c2
COL'NCIL ACTION (X)
PUBLIC HEARING REQUIRED O
RESOLUTION ()
ORDINANCE IST READING O
ORDINANCE 2\D READING O
CITY CLERK'S INITIALS ()
SUBJECI DISCUSSION/ACTION:
Approval of a One (1) year contract extension with Moss, Levy, Hartzheim, LLP I for professional auditing services for the City flscal yearended June 30,2024.
DEPARTMENT INVOLVED: Administration Services Department
BACKCROUND,'SUMMARY
Staff received the attached engagement letter proposal for auditing services from the current firm Moss, Levy & Hartzheim, LLP. At this time, it is in the best interest of the City that we extend for one(1) additional year; the firm is familiar with the City's operation and internal systems limitations and would facilitate an Audit. The Audit proposal includes City and Successor Agency Audit, State Controller Financial Transaction Report, TDA, and Sigle Audit (one program).
FISCAL IMPACT: NOT TO EXCEED
Total Audit amout not to Exceed $69,557.00
01-141-5210
FINANCE
INITIALS
STAFF RECOMMENDATION:
It is staffs recommendation to approved extension
DEPT, INITIALS Vq
MANACER'S RECOMMENDATION
CITY
MANAGER'S
INITIALS
{Wt
a++A,we/
APPROVED 0
DISAPPROVED 0
REJECTED
DE FE RR ED
(
(
)
)
RI]FERRED TO
U\1
MOTION:
SECONDED:
AYES:
NAYES:
ABSENT:
MOSS, LEVY & HARTZHEIM LLP
CERTIFIED PUBLIC ACCOUNTANTS
PARTNERS
RONALD A LEVY CPA
CRAIG A HARTZHEIM, CPA
HADLEY Y HUI CPA
ADAM GUISE CPA
TRAVIS HOLE. CPA
ALEXANOER HOM. CPA
GOVERNMENTAL AUDIT SERVICES
58OO HANNUM, SUITE E
CULVER CITY CA 90230
TEL 310.670 2745
FAX 310.670 1689
www.mlhcpas com
March 10. 2025
To the City Council and Management
City of lmperial
lmperial, CA
We are pleased to confirm our understanding of the services we are to provide the City of lmperial for the fiscal year ended June 30,2024. We will audit the financial statements of the governmental activities, the business-type activities, each major fund, and the aggregate remaining fund information, including the related notes lo the financial statements, which collectively comprise the basic financial statements, of the Caty of lmperial as of and for the fiscal year ended June 30, 2024. Accounting standards generally accepted in the United States of America provide for certain required supplementary information (RSl), such as management's discussion and analysis (MO&A), to supplement the City of lmperial's basic financial statements. Such information, although not a part of the basic financial statements, is required by the Governmental Accounting Standards Board who considers it to be an essential part of financial reporting for piacing the basic flnancial statements in an appropriate operational, economic, or historical context. As part of our engagiment, we will apply certain limited procedures to the City of lmperial's RSI in accordance with auditing standards generally accepted in the United States of America. These limited procedures will consist of inquiries of management iegarding the methods of preparing the information and comparing the information for consistency with management's reiponses to our inquiries, the baslc financial statements, and other knowledge we obtained during our audit of the basic flnancial statements. We will not express an opinion or provide any assurance on the information because the limited procedures do not provide us with sufflcient evidence to express an opinion or provide any assurance. The following RSI is required by U.S. generally accepted accounting principles and will be subjected to certain limited procedures, but will not be audited:
1) Management's Discussion and Analysis.
2) General and Major Special Revenue Fund Budgetary Comparison Schedules 3) OPEB Trend lnformation
4) Schedule of Proportionate Share of NPL and Schedule of Pension Contributions- last'10 years We have also been engaged to report on supplementary information other than RSI that accompanies the City of lmperial's financial statements. We will subject the following supplementary information to the auditing procedures applied in our audit of the financial statements ,nd certain additional procedures, including comparing and reconciling such information directly to the underlying accounting and other records used to prepare the financial statements or to the flnancial statemerits themselves, and other additional procedures in accordance with auditing standards generally accepted in the United States of America, and we will provide an opinion on it in relation to the financial statements as a whole, in a separate written report accompanying our auditor's report on the financial statements OR in a report combined with our auditof s report on the financial statements:
1) Schedule of expenditures of federal awards.
2) Combining and lndividual Statements and Schedules for non-major Governmental, Enterprise, lnternal Service, and Agency Funds.
OFFICES: BEVERLY HILLS CULVER CITY SANTA l\ilARlA
MEMBER AMERICAN INSTITUTE OF C P A S CALIFORNIA SOCIETY OF MUNICIPA! FINANCE OFFICERS CALIFORNIA ASSOCIATION OF SCHOOL BUSINESS OFFICIALS
COMMERCIAL ACCOUNTING & TAX SERVICES
433 N, CAMDEN DR, SUITE 730
BEVERLY HILLS. CA 90210
lEL 310.273 2745
FAX] 310.670.1689
3) Budgetary Comparison Schedules for Major Capital projects and Debt Service Funds The following other information accompanying the financial statements will not be subjected to the auditing procedures applied in our audit of the financial statements, and our auditor's report will not provide an opinion or any assurance on that other information.
'l ) Introductory Section
2) Statistical Section
Audit Objectives
The objective of our audit is the expression of opinions as to whether your financial statements are fairly presented, in all material respects, in conformity with U.S. generally accepted accounting principles and to report on the fairness of the supplementary information referred to in the second paragraph when considered in relation to the financial statements as a whole. The objective also includes reporting onlnternal control over financial reporting and compliance with provisions of laws, regulations, contracts, and award agreements, noncompliance with which could have a material effect on the financial statements in accordance wilh G ove rn ment Aud iti ng Standa rds.
lnternal control over compliance related to major programs and an opinion (or disclaimer of opinion) on compliance with federal statutes, regulations, and the terms and condrtions of federal awards that could have a direct and material effect on each major program In accordance with the Single Audit Act Amendments of 1996 and Trtle 2 U.S. Code of Federal Regulations (CFR) Part 200, Uniform Administrative Requirements, Cost Principles, and Audit Requirements for FederalAwards (Uniform Guidance).
The Government Auditing Standards report on internal control over financial reporting and on compliance and other matters will include a paragraph that states that ('l) the purpose of the report is solely to describe the scope of testing of internal control and compliance and the results of that testing, and not to provide an opinion on the effectiveness of the entity's internal control or on compliance, and (2) the report is an integral part of an audit performed in accordance with Government Auditing Standards in considering the entity's internal control and compliance. The Uniform Guidance report on internal control over compliance will include a paragraph that states that the purpose of the report on internal control over compliance is solely to describe the scope of testing of internal control over compliance and the results of that testing based on the requirements of the Uniform Guidance. Both reports will state that the report is not suitable for any other purpose.
Our audit will be conducted in accordance with auditing standards generally accepted in the United States of America; the standards for financial audits contained in Government Auditing Standards, issued by the Comptroller General of the United States; the Single Audit Act Amendments of '1996; and the provisions of the Uniform Guidance, and will include tests of accounting records, a determination of major program(s) in accordance with the Uniform Guidance, and other procedures we consider necessary to enable us to express such opinions. We will issue written reports upon completion of our Single Audit. Our reports will be addressed to the City Council and Management of the City of lmperial. We cannot provide assurance that unmodified opinions will be expressed. Circumstances may arise in which it is necessary for us to modify our opinions or add emphasis-of-matter or other-matter paragraphs. lf our opinions are other than unmodified, we will discuss the reasons with you in advance. lf, for any reason, we are unable to complete the audit or are unable to form or have not formed opinions, we may decline to express opinions or issue reports, or we may withdraw from this engagement.
Audit Procedures-General
An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements; therefore, our audit will involve judgment about the number of transactions to be examined and the areas to be tested. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the financial statements. We will plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether from (1) errors, (2) fraudulent financial reporting, (3) misappropriation of assets, or (4) violations of laws or governmental regulations that are aftributable to the government or to acts by management or employees acting on behalf of the government. Because the determination of abuse is subjective, Government Auditing Sfandards do not expect auditors to provide reasonable assurance of detecting abuse.
Because of the inherent limitations of an audit, combined with the inherent limitations of internal control, and because we will not perform a detailed examination of all transactions, there is a risk that material misstatements or noncompliance may exist and not be detected by us, even though the audit is properly planned and performed in accordance with U.S. generally accepted auditing standards and Government Auditing Stardards. ln addition, an audit is not designed to detect immaterial misstatements or violations of laws or governmental regulations that do not have a direct and material effect on the financial statements or on major programs. However, we will inform the appropriate level of management of any material errors, any fraudulent financial reporting, or misappropriation of assets that come to our attention. We will also inform the appropriate level of management of any violations of laws or governmental regulations that come to our attention, unless clearly inconsequential, and of any material abuse that comes to our attention. We will include such matters in the reports required for a Single Audit. Our responsibility as auditors is limited to the period covered by our audit and does not extend to any later periods forwhach we are not engaged as auditors.
Audit Procedures-lnternal Control
Our audit will include obtaining an understanding of the government and its environment, including internal control, sufficient to assess the risks of material misstatement of the financial statements and to design the nature, timing, and extent of further audit procedures. Tests of controls may be performed to test the effectiveness of certain controls that we consider relevant to preventing and detecting errors and fraud that are material to the financial statements and to preventing and detecting misstatements resulting from illegal acts and other noncompliance matters that have a direct and material effect on the financial statements. Our tests, if performed, will be less in scope than would be necessary to render an opinion on internal control and, accordingly, no opinion will be expressed in our report on internal control issued pursuant to Government Auditing Standards.
As required by the Uniform Guidance, we will perform tests of controls over compliance to evaluate the effectiveness of the design and operation of controls that we consider relevant to preventing or detecting material noncompliance with compliance requirements applicable to each major federal award program. However, our tests will be less in scope than would be necessary to render an opinion on those controls and, accordingly, no opinion will be expressed in our report on internal control issued pursuant to the Uniform Guidance.
An audit is not designed to provide assurance on internal control or to identify significant deficiencies or material weaknesses. However, during the audit, we will communicate to management and those charged with governance internal control related matters that are required to be communicated under AICPA professional standards, Government Auditing Standards, and the Uniform Guidance.
Audit Procedures-Compliance
As part of obtaining reasonable assurance about whether the financial statements are free of material misstatement, we will perform tests of the City of lmperial's compliance with provisions of applicable laws, regulations, contracts, and agreements, including grant agreements. However, the objective of those procedures will not be to provide an opinion on overall compliance and we will not express such an opinion in our report on compliance issued pursuant to Government Auditing Standards.
The Uniform Guidance requires that we also plan and perform the audit to obtain reasonable assurance about whether the auditee has complied with federal statutes, regulations, and the terms and conditions of federal awards applicable to major programs. Our procedures will consist of tests of transactions and other applicable procedures described in the OMB Compliance Supplement for the types of compliance requirements that could have a direct and material effect on each of the City of Imperial's major programs. The purpose of these procedures will be to express an opinion on the City of lmperial's compliance with requirements applicable to each of its major programs in our report on compliance issued pursuant to the Uniform Guidance.
Our procedures will include tests of documentary evidence supporting the transactions recorded in the accounts, and may include tests of the physical existence of inventories, and direct confirmation of receivables and certain other assets and liabilities by correspondence with selected individuals, funding sources, creditors, and financiai institutions. We will request written representations from your attorneys as part of the engagement, and they may bili you for responding to this inquiry. At the conclusion of our audit, we will require certain wrjtten representations from you about your responsibilities for the financial statements; schedule of expenditures of federal awards; federal award programs; compliance with laws, regulations, contracts, and grant agreements; and other responsibilities required by generally accepted auditing standards.
We will also assist in preparing the financial statements, schedule of expenditures of federal awards, and related notes of the City of lmperial in conformity with U.S. generally accepted accounting principles and the Uniform Guidance based on information provided by you. These nonaudit services do not constitute an audit under Government Auditing Standards and such services will not be conducted in accordance with Government Auditing Standards. We will perform the services in accordance with applicable professional standards. The other services are limited to the financial statements, schedule of expenditures of federal awards, and related notes services previously defined. We, in our sole professional judgment, reserve the right to refuse to perform any procedure or take any action that could be construed as assuming management responsibilities.
Management Responsibilities
Management is responsible for (1)designing, implementing, and maintaining effective internal controls, including internal controls over federal awards, and for evaluating and monitoring ongoing activities to help ensure that appropriate goals and objectives are met; (2) following laws and regulations; (3) ensuring that there is reasonable assurance that government programs are administered in compliance with compliance requirements; and (4) ensuring that management and financial information is reliable and properly reported. Management is also responsible for implementing systems designed to achieve compliance with applicable laws, regulations, contracts, and grant agreements. You are also responsible for the selection and application of accounting principles; for the preparation and fair presentation of the financial statements, schedule of expenditures of federal awards, and all accompanying information in conformity with U.S. generally accepted accounting principlesi and for compliance with applicable laws and regulations (including federal statutes) and the provisions of contracts and grant agreements (including award agreements). Your responsibilities also include identifying significant contractor relationships in which the contractor has responsibility for program compliance and for the accuracy and completeness of that information.
Management is also responsible for making all financial records and related information available to us and for the accuracy and completeness of that information. You are also responsible for providing us with (1) access to all information of which you are aware that is relevant to the preparation and fair presentation of the financial statements, (2) access to personnel, accounts, books, records, supporting documentation, and other information as needed to perform an audit under the Uniform Guidance, (3) additional information that we may request for the purpose of the audit, and (4) unrestricted access to persons within the government from whom we determine it necessary to obtain audit evidence.
Your responsibilities include adjusting the financial statements to correct material misstatements and confirming to us in the management representation letter that the effects of any uncorrected misstatements aggregated by us during the current engagement and pertaining to the latest period presented are immaterial, both individually and in the aggregate, to the financial statements as a whole.
You are responsible for the design and implementation of programs and controls to prevent and detect fraud, and for informing us about all known or suspected fraud affecting the government involving (1) management, (2) employees who have significant roles in internal control, and (3) others where the fraud could have a material effect on the financial statements. Your responsibilities include informing us of your knowledge of any allegations of fraud or suspected fraud affecting the government received in communications from employees, former employees, grantors, regulators, or others. ln addition, you are responsible for identifying and ensuring that the government complies with applicable laws, regulations, contracts, agreements, and grants. Management is also responsible for taking timely and appropriate steps to remedy fraud and noncompliance with provisions of laws, regulations, contracts, and grant agreements, or abuse that we report. Additionally, as required by the Uniform Guidance, it is management's responsibility to evaluate and monitor noncompliance with federal statutes, regulations, and the terms and conditions of federal awards; take prompt action when instances of noncompliance are identified including noncompliance identified in audit findings; promptly follow up and take corrective action on reported audit findings; and prepare a summary schedule of prior audit findings and a separate corrective action plan. The summary schedule of prior audit findings should be available for our review on March 17 ,2025.
you are responsible for identifying all federal awards received and understanding and complying with the compliance requirements and for the preparation of the schedule of expenditures of federal awards (including notes and noncash assistance received) in conformity with the Uniform Guidance. You agree to include our report on the schedule of expenditures of federal awards in any document that contains and indicates that we have reported on the schedule of expenditures of federal awards. You also agree to make the audited financial statements readily available to intended users of the schedule of expenditures of federal awards no later than the date the schedule of expenditures of federal awards is issued with our report thereon. Your responsibilities include acknowledging to us in the written representation letter that ('l ) you are responsible for presentation of the schedule of expenditures of federal awards in accordance with the Uniform Guidance; (2) you believe the schedule of expenditures of federal awards, including its form and content, is Other Services
You are also responsible for the preparation of the other supplementary information, which we have been engaged to report on, in conformity with U.S. generally accepted accounting principles. You agree to include our report on the supplementary information in any document that contains, and indicates that we have reported on, the supplementary information. You also agree to include the audited financial statements with any presentation of the supplementary information that includes our report thereon. Your responsibilities include acknowledging to us in the written representation letter that ('l) you are responsible for presentation of the supplementary information in accordance with GAAP; (2) you believe the supplementary information, including its form and content, is fairly presented in accordance with GAAP; (3) the methods of measurement or presentation have not changed from those used in the prior period (or, if they have changed, the reasons for such changes); ana 1+1 you have disclosed to us any significant assumptions or interpretations underlying the measurement or presentation of the supplementary information.
Management is responsible for establishing and marntaining a process for tracking the status of audit findings and recommendations. Management is also responsible for identifying and providing report copies of previous financial audits, attestation engagements, performance audits, or other studies related to the objectives discussed in the Audit Objectives section of this letter. This responsibility includes relaying to us corrective actions taken to address significant findings and recommendations resulting from those audits, attestation engagements, performance audits, or studies. You are also responsible for providing management's views on our current findings, conclusions, and recommendations, as well as your planned corrective actions, for the report, and for the timing and format for providing that information.
You agree to assume all management responsibilities relating to the financial statements, schedule of expenditures of federal awards, and related notes, and any other nonaudit services we provide. You will be required to acknowledge in the management representation letter our assistance with preparation of the financial statements, schedule of expenditures of federal awards, and related notes and that you have reviewed and approved the financial statements, schedule of expenditures of federal awards, and related notes prior to their issuance and have accepted responsibility for them.
Further, you agree to oversee the nonaudit services by designating an individual, preferably from senior management, with suitable skill, knowledge, or experience; evaluate the adequacy and results of those services; and accept responsibility for them.
Engagement Administration, Fees, and Other
We may from time to time and depending on the circumstances, use third-party service providers in serving your account.
We may share confidential information about you with these service providers, but remain committed to maintaining the confidentiality and security of your information. Accordingly, we maintain internal policies, procedures, and safeguards to protect the confidentiality of your personal information. ln addition, we will secure confidentiality agreements with all service providers to maintain the confidentiality of your information and we will take reasonable precautions to determine that they have appropriate procedures in place to prevent the unauthorized release of your confidential information to others. ln the event that we are unable to secure an appropriate confidentiality agreement, you will be asked to provide your consent prior to the sharing of your confidential information with the third-party service provider. Furthermore, we will remain responsible for the work provided by any such third-party service providers.
We understand that your employees will prepare all cash, accounts receivable, or other confirmations we request and will locate any documents selected by us for testing.
At the conclusion of the engagement, we will complete the appropriate sections of the Data Collection Form that summarizes our audit findings. lt is management's responsibility to electronically submit the reporting package (including financial statements, schedule of expenditures of federal awards, summary schedule of prior audit findings, auditors' reports, and corrective action plan) along with the Data Collection Form to the federal audit clearinghouse. We will coordinate with you the electronic submission and certification. The Data Collection Form and the reporting package must be submitted within the earlier of 30 calendar days after receipt of the auditors' reports or nine months after the end of the audit period.
We will provide copies of our reports to the City of lmperial; however, management is responsible for distribution of the reports and the financial statements. Unless restricted by law or regulation, or containing privileged and confidential information, copies of our reports are to be made available for public inspection.
The audit documentation for this engagement is the property of Moss, Levy & Hartzheim LLP and constitutes confidential information. However, subject to applicable laws and regulations, audit documentation and appropriate individuals will be stated fairly in accordance with the Uniform Guidance; (3) the methods of measurement or presentation have not changed from those used in the prior period (or, if they have changed, the reasons for such changes); and (4) you have disclosed to us any significant assumptions or interpretations underlying the measurement or presentation of the schedule of expend itures of federal awards.
made available upon request and in a timely manner to HUD or DOT or its designee, a federal agency providing direct or indirect funding, or the U.S. Government Accountability Office for purposes of a quality review of the audit, to resolve audit findings, or to carry out oversight responsibilities. We will notify you of any such request. lf requested, access to such audit documentation will be provided under the supervision of Moss, Levy & Hartzheim LLP personnel. Furthermore, upon request, we may provide copies of selected audit documentation to the aforementioned pa(ies. These parties may intend, or decide, to distribute the copies or information contained therein to others, including other governmental agencies.
The audit documentation for this engagement will be retained for a minimum of seven years after the report release date or for any additional period requested by the HUD, DOT, or CA State Controller. lf we are aware that a federal awarding agency, pass-through entity, or auditee is contesting an audit finding, we will contact the party(ies) contesting the audit finding for guidance prior to destroying the audit documentation.
We expect to begin our audit on approximately March 17, 2025 and to issue our reports no later than September 30, 2024. Caig A Hartzheim is the engagement partner and is responsible for supervising the engagement and signing the reports or authorizing another individual to sign them.
Our fee for these services will be at our standard hourly rates plus out-of-pocket costs (such as report reproduction, word processing, postage, travel, copies, telephone, etc.) except that we agree that our gross fee, including expenses, will not exceed $69,557. This fee includes the audit of one major program under the Single Audit Act. lf more than 1 major program is required to be audited the fee for each additional major program will be $3,000. Our standard hourly rates vary according to the degree of responsibility involved and the experience level of the personnel assigned to your audit. Our invoices for these fees will be rendered each month as work progresses and are payable on presentation. ln accordance with our firm policies, work may be suspended if your account becomes 45 days or more overdue and may not be resumed until your account is paid in full. lf we elect to terminate our services for nonpayment, our engagement will be deemed to have been completed upon written notification of termination, even if we have not completed our report(s). You will be obligated to compensate us for all time expended and to reimburse us for all out-of-pocket costs through the date of termination. The above fee is based on anticipated cooperation from your personnel and the assumption that unexpected circumstances will not be encountered during the audit. lf significant additional time is necessary, we will discuss it with you and arrive at a new fee estimate before we incur the additional costs.
We appreciate the opportunity to be of service to the City of lmperial and believe this letter accurately summarizes the significant terms of our engagement. lf you have any questions, please let us know. lf you agree with the terms of our engagement as described in this letter, please sign the enclosed copy and return it to us.
Very truly yours,
\*1 tfu7 t 't'4'''
Moss, Levy & Hartzheim LLP
RESPONSE:
This letter correctly sets forth the understanding of the City of lmperial Title: |*1'.',- i-i.\-.. iv< 1,rvic--, \"-.1--
Date
Management signature:
-{.r"l>5-
DATE SUBMITI'EI)
SUBMITTED BY
DATE ACTION REQUIRED
3112125
Public Services
3119125
IMPERIAL CITY COUNCIL
AGENDA ITEM
Agenda ltem No.
COUNCIL ACTION
PTIBLIC HEARINC REQUIRED
RESOLUTION
oRDINANCE tsr READING
oRDIlaNCg 2to naaolNc
CITY Ct-ERK'S INITIAt,S
SUBJECl' DISCUSSION/ACTION:
,
Adopt Plans and Speciflcations and Authorize Public Bidding forthe Manhole and Lift ' Station Rehabilitation and New Manhole lnstallation Project in the City of lmperial; Bid-2025-0't
DEPARTMENI INvOLVED: Public Services
The project will bid in accordance wilh the Public Conlract Code (PCC). The prqect plans and sp€cificalions will be on lile with the City Cle al City Hail located at 420 S. lmpe al Ave, lmpeial, CA 92251.
FISCAL IMPACT: NOT TO EXCEED
Funds to cover associated costs will be expended from enterprise funds. Project is in the FY 24-25 Capital lmprovement Plan.
CIP Project No. 832, Manhole Rehab - $1,000,000
FINANCE
INITTAI S
SI AI.T RECOMMENDA I'ION
approve request
CITY
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INTIIALS A-p4^.o/eMOTION
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NAYF]S:
ABSENT:
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BACKGROUND/SUMMARY:
There are sewer manholes and sewer pump stalion wet wells within the city's sewercollection system that are past lheir useful life and require rehabilitalion and/or replacement, While new manholes are usually made of concrete, some ot lhe older manholes in lhe city's system are composed ofbrick. Over lime, lhe brick and morler and/orconcrele walls ofthe manholes corrode due lo conosive gas€s, especially those that do nol have the walls ofthe concrete lined. Rehabilileting the manholes ls less expensive lhan full replacement. Maflholes that can be rehabilitated in lieu of replacement will be if possible. Plans and specificalions have been prepared for the Manhole and Lift Stetion Rehabililation and New Manhole lnstallation Proiect in the City of lmperial; Bid-2025'01.
POect scope includes, but is not limited to, rehabilitation and iining ofexisling manholes, removaland demolitjon of exisling sewer clean-outs, construction and installalion ofnew precast concrele manholes, isolation, surtace preparation and coeting of the existing lift station concrete wel well walls and floor
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CITY OF IMPERIAL
Manhole and Lift Station Rehabilitation
and New Manhole Installation
Bid No.2025-01
MARCH 2025
PREPARED BY
ALBERT A. WEBB ASSOCIATES
3788 McCRAY STREET
RIVERSIDE, CA 92506
(951) 686-1070
PREPARED FOR
CITY OF IMPERIAL
PUBLIC WORKS DEPARTMENT
420 SOUTH IMPERIAL AVENUE
IMPERIAL. CA 92251
(760) 3ss-l 152
( l I Y OF I\lPtrlil \L 12{) SO( 'l'll I\lPFRl\l- \\'1.\l l:. I\IPERI^t . C \LIFtiR\l \ e2251 In i7(i(),lii-IIil f \\ r71,()rIi5--l;Ili \\\vw.inrpcrial ca.gor
BID INVITATION PACKAGE
THE CIry OF IMPERIAL
STATE OF CALIFORNIA
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid Packaqe Contents:
1. 2.
3. 4.
6 6.
7. 8.
o
10. 11.
Notice and lnvitation to Bidders;
lnstructions to Bidders;
Bid Form;
Bid Bond;
List of Proposed Subcontractors;
Noncollusion Affidavit;
General Conditions;
Certiflcate Regarding Workers' Compensation;
Prolect Contract Execution Document;
Special Requirements
Detailed Specifi cations
TABLE OF CONTENTS
TABLE OF CONTENTS.....
Page
.TOC l-2
INS'IRUCTIONS TO BIDDERS ....tTB-t-8
BID FORM BF- l-9
LIST OF PROPOSED SUBCONTRACTORS .........
BID BOND BB.I
NONCOLLUSION AFFIDAVIT
GENERAL CONDITIONS GC-l-18
WORKERS' COMPENSATION
EXECUTION DOCUMENT tl
SPECIAL REQUIREMENTS sR-t-14
DETAILED SPECIFICATIONS .....See Belo'w
Division I - General
0l 340 - Shop Drawings. Product Data and Samples .......................... 0 I 5 I 0 - Construction Facilities and Temporary Contro1s................... 0 I 530 - Protection of Existing Facilities............ 0l 700 - Project C1oseout.............
Division2-SiteWork
02 I 40 - Groundwater Dewatering.........
01200 - Earthwork and Site Preparation
02221 - Trenching, Backfilling, and Compacting.
02250 - Sewer Bypass System
0241 5 - Sheeting, Wailing and Shoring ..........-
025 l0 - Asphalt Concrete Paving
02620 - Existing Underground Uti1ities................... 02622 - Polyvinyl Chloride (PVC) Pressure Pipe....
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation 01340-l
015 l0- l
0l 530- l
0l 700- I
02140-l
02200- I
......02221-l
......02250- l
......024 r 5- r
......025 l0- I
......02620-l
02622-l
Table of Contents
TOC-1
NOTICE AND INVITATION TO BIDDERS ..............................................NTB-l-3 l
Division 3 - Concrete
031 l0 - Concrete Formwork
032 | 0 - Concrete Reinlorcement ............
03300 - Cast-in-Place Concrete....--
03480 - Precast Concrete Vaults and Manho|es.............
Division 7 - Thermal and Moisture Protection
07 I 20 - Fluid Applied Waterproofi ng...................
Division 9 - Finishes
09872 - Cured-in-Place Manhole Liner Svstem
09875 - Epoxy Coating for Existing Concrete Wastewarer Srructures.....
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation 03 il0-l
032t0-l
03300- l
03480- l
07120-1
09872-l
09875- I
Table of Contents
TOC-2
NOTICE AND INVITATION TO BIDOERS
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
NOTICE lS HEREBY GIVEN that sealed bids for the above prqect shall be received at the offices of the City Clerk at the City of lmperial at 420 So. lmperial Ave, lmperial, CA 92251, until 2:00 p.m. Pacific Standard Time, on April XX, 2025. Bids will be publicly opened on April XX,2025, al2:05 p.m. Pacific Standard Time, or as soon thereafter as possible, at the City of lmperial located at 420 So. lmperial Ave., lmperial, CA 92251 .
The Contract for the work advertised shall be awarded to lowest responsible bidder.
City reserves the right to reject all bids.
A prebid site tour will not be conducted. Bidders are directed to Appendix A to view photos of the manholes and lift station wetwells or can coordinate with the City to arrange a site visit.
PROJECT DESCRIPTION
Contractor shall furnish all labor, material, equipment and services to perform and complete all work required for the Manhole and Lift Station Rehabilitation and New Manhole lnstallation as per the Project Specifications.
The Project will generally include:
. The rehabilitation and lining of existing manholes throughout the City and the replacement of existing manholes with new concrete manholes. Existing manholes to be rehabilitated that do not have drop pipes or forcemains entering them will receive a cured-in-place liner. Existing manholes to be rehabilitated that cannot receive a cured-in-place liner will receive a geopolymer epoxy manhole liner. Work will likely include sewer bypass operations depending on the rehabilitation and/or replacement required.
. Removal of an existing sewer clean-out, followed by the installation of a new flow through concrete manhole in its place around an existing sanitary sewer main.
. Construction and installation of three (3) new precast concrete manholes around the existing sanitary sewer main within Barioni Boulevard and generally located between H Street and K Street.
. lsolation of the Cross Street lift station existing wetwells by means of plugging all pipe connections, followed by draining and cleaning of the existing wetwells, and protection of existing pumps and piping.
. Surface preparation and coating of the existing Cross Street lift station wetwell walls and floor.
The City of lmperial
Manhole and Lifl Station Rehabilitation and New Manhole lnstallation Notice to Bidders
NTB.1
Manhole and Lift Station Rehabilitation and New Manhole lnstallation BtD 2025-01
Removal of pipe plugs for wetwell isolation and return of pump station to service.
Contractor shall be responsible to verifo operability of pumps and level control system.
Removal of three existing manholes located on Clark Road, to be replaced with a single 72" diameter manhole, along with new force main pipe and fittings to connect to the new manhole.
Bid packages are available on the City's website, www. citvofimperial. ora Engineer's Estimate for this Project is $500,000
CONTRACTOR'S LICENSE:
Contractor must have a California State Contractor's Class "A" license. A City of lmperial business license is required prior to start of project.
A bid submitted by any contractor not properly licensed shall be considered nonresponsive and will be rejected.
No contractor or subcontractor may be listed on a bid proposal for a public works project (submitted on or after March 1, 2015) unless registered with the Department of lndustrial Relations pursuant to Labor Code section '1725.5 [with limited exceptions from this requirement for bid purposes only under Labor Code section 1 771 .1 (a)1. No contractor or subcontractor may be awarded a contract for public work on a public works projects (awarded on or after April 1, 2015) unless registered with the Department of lndustrial Relations pursuant to Labor Code ,1725.5. This prolect is subject to compliance monitoring and enforcement by the Department of lndustrial Relations. Any bid submitted by a contractor or subcontractor not property licensed any not registered with the Department of lndustrial Relations shall be considered nonresponsive and will be rejectedAPPRENTICES Section 1777.5 requires the Contractor or Subcontractor employing tradesmen in any apprentrceable occupation to apply to the Joint Apprenticeship Committee nearest the site of the public works project and which administers the apprenticeship program in that trade for a certificate of approval. The certificate will also fix the ratio of apprentices to journeymen to be used in the performance of the contract.
The Contractor is required to make contributions to funds established for the administration of apprenticeship programs if he employs registered apprentices or journeymen in any apprenticeable trade and if other Contractors on the public works site are making such contributions.
Notice to Bidders
NTB-2
The City of lmperial
Manhole and Lifl Station Rehabilitation and New Manhole lnstallation lnformation relative to apprenticeship standards, contributions, wage schedules and other requirements may be obtained from the State Director of lndustrial Relations or from the Division of Apprenticeship Standards.
PREVAILING WAGE RATES
Not less than the general prevailing rate of per diem wages for work of a similar character in the locality in which this contract is to be performed, and not less than the general prevailing rate of per diem wages for holiday and overtime work fixed as provided in Chapter 1 (commencing with Section 172Q Pan 7, Division 2 of the Labor Code, shall be paid to all workers employed on this public work. Statutory provisions for penalties for failure to pay prevailing wages will be enforced. A copy of the applicable rate of per diem wages is on file in the office of the City Clerk,42O South lmperial Avenue, lmperial, California.
BID BOND
Each bid must be accompanied by a guaranty of cash, certified check, cashier's check or bid bond made payable to the City of lmperial for an amount equal to at least ten percent (10%) of the bid. Such guaranty to be forfeited should the bidder to whom the contract is awarded fails to enter the contract. All guaranties to be returned after the contract is awarded. ln conformance with the State of California Public Contract Code Section 22300, the contractor may substitute securities for any funds withheld by the City to ensure performance under the contract.
At request and expense of the contractor, securities equivalent to the amount withheld shall be deposited with the City or with a State or Federally chartered bank as the escrow agent who shall pay such funds to the contractor upon notification by the City of contractor's satisfactory completion of contract.
The type of securities deposited and the method of release shall be approved by the City Attorney.
PAYMENT BOND
lf the successful bid is in excess of $25,000, the successful bidder shall be required to post a payment bond in the amount of the bid in accordance with California Civil Code Section $3247.
RETENTION
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Notice to Bidders
NTB-3
The City shall retain five (5%) percent of the Contract price. The retention shall be released (with the exception of one hundred fifty percent of any disputed amount) within sixty days after the date of completion of the work. The Contractor may substitute securities in place of the retained funds withheld by the City. Alternatively, an escrow agreement, in the form prescribed under Ca. Pub. Cont. Code $ 22300, may be used by Contractor.
RESOLUTION OF CLAIMS:
Claims shall be managed as set forth in Public Contracts Code Section 20104 and 9204. \y'y'here there is conflict, the provisions of 9204 shall control. ln general terms, said process contemplates a meet and confer procedure and non-binding mediation as a precursor to litigation.
MISCELLANEOUS
All inquiries regarding this project should be directed to City of lmperial
David Dale, PE - Public Services Director
420 South lmperial Avenue
lmperial, California 92251
760-355-3336
ddale@im perial. ca. gov
THE CITY OF IMPERIAL
By: Dennis Morita, City Manager
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Notice to Bidders
NTB-4
INSTRUCTIONS TO BIDDERS
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
Manhole and Lift Station Rehabili tation and New Manhole lnstallation BID 2025-01
'1. Exolanations to Bidders
(a) Any explanation desired by a bidder regarding the meaning or interpretation of the lnvitation for Bids, including drawings, specifications, prior approvals, etc., must be requested in writino no later than 5 calendar days before the bid deadline. Any interpretation made will be in the form of an addendum to the Invitation for Bids and will be furnished to all prospective bidders.
Receipt of Addenda by the bidder must be acknowledged in the space provided on the Bid Form or by letter or transmittal received before the time set for opening of sealed bids. Verbal explanations or instructions given before the award of the contract will not be binding.
(b) All questions regarding the lnvitation for Bids shall be in writing and directed to.
City of lmperial
David Dale, PE
Public Services Director
420 South lmperial Avenue
lmperial, C492251
760-355-3336
ddale@citvo flmoerial.orq
2. Cond ns Affectinq the Work
(a) Before submitting a bid, each bidder must ('1)examine the bid and contract documents thoroughly, (2) visit the site to familiarize himself with local conditions that may in any manner affect cost, progress or performance of the work (Optional), (3) familiarize himself with federal, state and local laws, ordinances, rules and regulations that may in any manner affect cost, progress or performance of the work; and (4) study and carefully correlate bidder's observations with the bid and contract documents. Failure to do so will not relieve bidders from responsibility for estimating properly the difficulty or cost of successfully performing the work. The City will assume no responsibility for any understanding or representations concerning conditions made by any of its officers or agents prior to the execution of the contract, unless included in the bid or contract documents.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Albert A. Webb Associates
Shane Bloomfield
Design Engineer
3788 Mccray Street
Riverside, CA 92506
951-2484293
shane. bloomfi eld@webbassociates. com
lnstructions to Bidders
ITB - 1
(b) The submission of a bid will constitute an incontrovertible representatron by the Bidder that it has complied with every requirement of the request for bids and that the bid and contract documents are sufficient in scope and detail to indicate and convey understanding of all terms and conditions for performance of the work.
3. Bidder'sQualiflcations
(a) Contractor must have a California State Contractor's Class "A" license to perform the work and all electrical work shall be performed by a C-10 State Contractor. Any bid submitted by a contractor not properly licensed shall be considered non-responsive and will be rejected.
(a) The bid guaranty shall be in the form of a bid bond, certified check, or cashie/s check, payable to the order of the City of lmperial, in an amount not less than 10% of the Bid, lf the bid guaranty is in the form of a bond it must be of the type included in this bid package. Any bid bond shall be executed by a corporate surety acceptable to the City and authorized to issue such surety bond in the State of California. Bid guaranties, other than bid bonds, will be returned (1) to unsuccessful Bidders as soon as practicable after the opening of bids, and (2) to the successful Bidder upon execution and delivery of all contract documents. However, the City reserves the right to retain the bid guaranty of the second lowest qualified Bidder until the lowest qualified Bidder executes and delivers all required contract documents to the City or until 60 calendar days after bid opening, whichever occurs first.
(b) Failure to furnish a bid guaranty in the proper form and amount, by the time set for the receipt of bids, shall be cause for rejection of the bid. (c) lf the successful Bidder, upon acceptance of its bid by the City fails to execute and deliver all contract documents within 10 calendar days after receipt of City's Notice of Award, the successful Bidder's bid guaranty shall be retained by the City as liquidated damages. Such failure on the Bidder's part to execute and deliver those documents will cause substantial damage to the City, including delay in its construction program, which damage is not easily reduced to monetary terms and, therefore, the full amount of the bid guaranty is properly considered to be liquidated damages.
5. Preparation of Bids
(a) Bids shall be submitted on the forms furnished, or copies thereof, and must be manually signed. All blank spaces shall be filled in. lf erasures or other changes appear on the forms, each erasure or change must be initialed by The City of lmperial
Manhole and Lifi Station Rehabilitation and New Manhole lnstallation lnstructions to Bidders
ITB-2
4. Bid Guarantv
the person signing the bid. Telephonic or fax bids will not be considered. (b) Substitutions for specified materials will not be considered without prior approval.
(c) Modifications of bids already submitted will be considered if recelved at the office designated in the invitation for bids by the time set for receipt of bids.
Telephonic or fax modifications will not be considered. (d) Discrepancies between words and figures shall be resolved in favor of words.
(e) Discrepancies between the indicated sum of any column of figures and the correct sum thereof shall be resolved in favor of the correct sum.
6. Submiss ion of Bids
(a) Bids must be sealed, marked, and addressed as indicated below. Failure to do so may result in a premature opening of, or a failure to open, such bid, thereby eliminating that Bidder from consideration. The sealed envelope containing the bid should be enclosed in another envelope addressed as indicated below.
(b) All bids shall be received no later than 2:00 p.m. Pacific Standard Time, on April XX,2025 hand-delivered or mailed, addressed to:
Jillian Mehdipour, Public Records Analyst
City of lmperial
420 South lmperial Avenue
lmperial, California 92251
(c) The envelope containing the original copy of the bid must be sealed, marked, and addressed as follows:
(1) Name and address of Bidder
(2\ Marked in the lower left-hand corner of the envelope
CITY OF IMPERIAL, MANHOLE AND LIFT STATION REHABILITATION AND NEW MANHOLE INSTALLATION - BID NO. 202541
(d) The original bid shall consist of those documents listed below. The original document shall be returned with the bid. (1) Bid Form;
(2) List of Proposed Subcontractors;
The City of lmperial
Manhole and Lin Station Rehabilitation and New Manhole lnstallation lnstructions to Bidders
ITB-3
(3) Bid Bond;
(4) Noncollusion Affidavit; and
(5) Contractor's Certificate Regarding Workers' Compensation
7. Late Bid. Modificati on or Withdrawal of Bid bv Bidder (a) Any bid received by the City after the exact time specified for receipt will be returned unopened.
(b) Any modification or withdrawal of bids must be made in writinq and is subject to the same condition as in (a) above. A bid may be withdrawn by written or transmittal request received from a Bidder prior to the time set for opening bids. A bid may also be withdrawn in person by a Bidder or the Bidder's authorized representative, provided the representative's identity is made known and the representative signs a receipt for the bid, but only if the withdrawal is made prior to the time set for opening bids.
8. Citv Modifications Prior to Date Set for Ooenino Bids The City may revise or amend the bid or contract documents, including the specifications and drawings, prior to the date set for opening bids. Such revisions and addenda, if any, will be announced by addenda to the lnvitation for Bids. lf the revisions and addenda are of a nature which require material changes in the bid, the date set for opening bids may be postponed by such number of days as in the opinion of the City will enable Bidders to revise their bids. ln such a case, the addendum will include an announcement of the new date and time for opening bids.
9. Public Ooenino of Bids
Bids will be publicly opened at the time set for opening in the Notice to Bidders.
Thelr content will be made public for the information of Bidders and others interested, who may be present either in person or by representative.
10. Awa rd of Contract
(a) Award of contract will be made to the low responsible Bidder whose bid, conforming to the lnvitation for Bids, is most advantageous to the City, price and other factors considered.
(b) The City Council may, when in its interest, rqect any or all bids. (c) The City may accept any item or combination of items of a bid, unless precluded by the lnvitation for Bids or the Bidder includes in its bid a The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation lnstructions to Bidders
ITB-4
restrictive limitation
11. Bonds and lnsurance
(a) lf the successful bid is in excess of $25,000, the bidder to whom the contract is awarded shall furnish a Payment Bond on forms approved by the City, executed by a corporate surety acceptable to the Ci$ and authorized to issue such surety bonds in the State of California. The Payment Bond shall be in an amount equal to 1O0o/o ol the Contract Price. The entire cost of bond shall be borne by the successful Bidder.
(b) The successful Bidder shall furnish a Performance Bond on forms approved by the City, executed by a corporate surety acceptable to the City, and authorized and admitted to issue surety bonds in California. The Performance Bond shall be in an amount equal to 't 00% of the Contract Price. The entire cost of the Performance Bond shall be borne by the successful Bidder.
(c) The successful Bidder shall deliver to the City certification attesting to the fact that the required policies of insurance have been obtained by the Bidder to the limits described in section 5.1.1 of the General Conditions (pg GC-3). (d) The signed contract required bonds and certificates of insurance shall be delivered to the City within 10 calendar days after receipt by Bidder of City's Notice of Award.
12. Subcontractors
(a) Each Bidder in its bid shall set forth the following (1) The name and location of the place of business of each subcontractor whom it intends to use to perform work or labor, or render service to the Bidder in or about construction of any work, tn an amount in excess of 0.5% of the Base Bid. (California law forbids the substitution of subcontractors on public works projects, such as this project, except under very narrow and limited circumstances.) (2) The portion of the work which will be done by each such proposed subcontractor, if the Bidder is awarded the Contract.
(b) Each Bidder shall furnish such information in substantially the form set forth in the lnvitation for Bids. lf no subcontractors are to be used, other than within the 0.5% limit referred to above the Bidder shall state "None" on the form.
The City of lmperial
Manhole and Lifl Station Rehabililation and New Manhole lnstallation lnstructions to Bidders
ITB.5
13. NoncollusionAffidavit
Each Bidder shall include a noncollusion affidavit with its bid in substantially the form set forth in the lnvitation for Bids.
The Bidder's attention is called to the requirements of the General Conditions regarding the acquisition of and payment for permits, licenses and fees related to the work of this project. All such acquisitions and payments are the sole responsibility of the Contractor. lt is the sole responsibility of the Bidder to contact agencies or utilities having jurisdiction over the project to ascertain the extent of permits and fees required and the cost thereof, and to include all such costs in its bid.
The successful Bidder must also comply with statutory requirements relating to certified copies of payroll and maintenance records, and availability for inspection of same. Successful Bidder must comply with statutory requirements relating to employment of apprentices.
16. n truction Schedule
After the Contract Documents are executed, the City will give the Contractor notice to proceed. After this notice is given, the Contractor shall substantially complete the project within One-Hundred Fifty (150) Calendar days. The Contractor will be liable for damages for any inexcusable delay beyond this period. Liquidated damages for such delay shall be $500 per calendar day for each day past the substantial completion date.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation lnstructions to Bidders
ITB-6
(c) Each proposed subcontractor must complete a Subcontractor's Experience Statement, which shall be attached to the List of Proposed Subcontractors in order for the bid to be considered complete.
14. Permits and Fees
15. Prevailino Waoe Rates
Not less than the general prevailing rate of per diem wages for work of a similar character in the locality in which this contract is to be performed, and not less than the general prevailing rate of per diem wages for holiday and overtime work fixed as provided in Chapter 1 (commencing with Section 1720) Paft 7, Division 2 of the Labor Code, shall be paid to all workers employed on this public work. Should the prevailing wage rate be increased, decreased, or eliminated a corresponding adjustment shall be made to the Contract Price which shall reflect the effect of that change in or elimination of the prevailing wage rate. A copy of the applicable rate of per diem wages is on file in the office of the City Clerk, 420 South lmperial Avenue, lmperial, California.
17 . Debarment of Contra and Subcontractors
ln accordance with the provisions of the Labor Code, contractors or subcontractors may not perform work on a public works project with a subcontractor who is ineligible to perform work on a public prolect pursuant to Section 1 777.1 or Section 1777.7 ot the Labor Code. Any contract on a public works project entered into between a contractor and a debarred subcontractor is void as a matter of law. A debarred subcontractor may not receive any public money for performing work as a subcontractor on a public works contract. Any public money that is paid to a debarred subcontractor by the Contractor for the Project shall be returned to the City. The Contractor shall be responsible for the payment of wages to workers of a debarred subcontractor who has been allowed to work on the Project.
The City of lmperial
Manhole and Lifi Station Rehabilitation and New Manhole lnslallation lnstructions to Bidders
ITB-7
Per California Executive Order N-6-22, the City of lmperial is required to assure that all contractors doing business with the City of lmperial are in compliance with economic sanctions imposed by the U.S. government in response to Russia's actions in Ukraine, as well as sanctions imposed under state law, if any. Please execute this document to verify current compliance of contractor with Executive Order N-6-22 and to ensure that this pro.iect will be in compliance with Executive Order N-6-22.
Contractor's Signature below
Note that responses may be subject to disclosure under the California Public Records Act. Accordingly, tt is within the discretion of the respondent to determine what information to provide. Additionally, please do not include any confidentiat information or drsc/osures that could pose secun|y rlsks.
The City of lmperial
Manhole and Lifl Station Rehabilitation and New Manhole lnstallation lnstructions to Bidders
ITB.8
Verification of Compliance with Economic Sanctions
NOTICE: Having conducted a good faith review, I attest that the contractor submitting this bid is in compliance with the economic sanctions imposed by the U.S. government in response to Russia's actions in Ukraine, as well as sanctions imposed under state law, if any. Further, I attest that I am aware of Executive Order N-6-22 and agree monitor the project to ensure the project remains in compliance with Executive Order N-6-22.
BID FORM
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
To City Of lmperial
Public Works Department
420 South lmperial Avenue
lmperial, California 9225'l
ln response to the lnvitation for Bids, the undersigned Bidder hereby proposes to furnish all labor, material, equipment and services and perform and complete all work required for the Manhole and Lift Station Rehabilitation and New Manhole lnstallation Project as described in the Plans and Specifications.
Performance shall include all work necessary to complete the Project in strict accordance with the Contract and for the price(s) to be specified by the Bidder below, including all applicable taxes.
Bidder certifies that it has examined and is fully familiar with all of the provisions of the lnvitation for Bids and any Addenda thereto; that it is submitting this Bid in strict accordance with the lnstructions to Bidders; and that it has carefully reviewed the accuracy of all statements attached to this Bid.
Bidder certifies that it has visited and examined the work site (Optional), and is satisfied with the nature and location of all work, the general and local conditions to be encountered in the performance of the work, the requirements of the Contract and all other matters which can in any way affect the work or the cost thereof. Bidder further certifies that Bidder has performed such tests deemed necessary for the preparation of this bid.
Bidder agrees that this Bid constitutes a firm offer to the City which cannot be withdrawn by Bidder for 60 calendar days from the date of actual opening of bids. lf awarded the Contract, Bidder agrees to execute and deliver to the City within 10 calendar days after receipt of City's Notice of Award, the applicable Construction Contract form and the required Payment Bond, Certificates of lnsurance, and any other required Contract Documents.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid Form
BF-1
Manhole and Lift Station Rehabilitation and New Manhole lnstallation BtD 2025-01
Item
No.
BIDDING SCHEDULE
MANHOLE AND LIFT STATION REHABILIATION
AND NEW MANHOLE INSTALLATION
CITY OF IMPERIAL
BID SCHEDULE I
aly Unit Bid Bid (1) unit Price'
1LS$_
Extensions'
101
102 Furnish, install, and maintain traffic
control, including preparing trafflc
control plans and Encroachment
Permits for in-place manhole
rehabilitations for approval by City
of lmperial.
103 Sewer manhole rehabilitation (MH
tD 28,42,51, 54, 55, 56, 58, 59,
60, 345, 346, 347 , U8,349, 350,
1022, 1023, 1028, 1102 & 1142),
including protection of existing flow
channel, internal flow through bypass (as required), manhole bench restoration, replacement of
manhole frame and cover per City
Std. Det. No. 200, associated
asphalt repair, installing CIPL per
Section 09872 or epory liner per
Section 09875, complete in place.
104 Field orders for appropriate
modifications to scope made by
Engineer and Owner for mutually
agreed upon prices with the
Contractor
Total Bid Schedule I $
20EA$
I LS $25,000 $2s,000
$
,1 LS$ $
$
(Sum of Extension Nos. 1 01 thru 104)
TOTAL BID PRICE FOR BID SCHEDULE I
(Figures)
DOLLARS
rrrQuantities (except for "Lump Sum:" item numbers) are estimated and are for the purpose of comparing bid only.
Payment will be bascd upon actual quantiries fumished. installed or consmrcted in accordance with the Conrlact Documents.
' The above prices include any amount payable by the Owner for taxes by reason ofthis contract. (1) Payment shall not exceed 57o ofthe total for Bid Schedule I.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid Form
BF.2
Descriotion
Mobilization (all equipment, tools,
and staff), lnsurance, Bonds,
Preconstruction Video, and
Demobilization(2)
(DOLLAR AMOUNT IN WRITTEN FORM)
nit
ag(].)
4 U
Unit Bid
Price"
Item
No. Description
201 Removal and disposal of 48" dia.
Manhole lD Nos. 1024, 1025, 1026,
1027 and CO-60.
202 Removal and disposal of existing 60"
dia. manholes (Manhole lD No. 359
and two unnumbered manholes) and
cutting of existing 21" dia. gravity
sewer pipe as indicated on Sheet No.
3, Detail No. 1 of the Contract
Drawings.
203 Furnish and install new48" dia.
Manholes over ex. gravity sewer per
City of lmperial Std. Det. No. 200 in the
place of Manhole lD Nos. CO-60,
1024,1025, 1026, and 1027, including
sewer by-pass (as required).
2U Furnish and install new 72" dia.
Manhole w/eccentric flat top over ex.
21" sewer line to the north of existing
Manhole No. 359 as shown on Sheet
No. 3, per City of lmperial Std. Det. No.
200, including internal flow through bypass (as required). 205 Furnish and install new 48" dia.
Manhole per City of lmperial Std. Det.
No. 200 for three (3) locations along
Barioni Boulevard indicated on Sheet
No. I over the existing gravity sewer,
including internal flow through by-pass
(as required).
Preparation and lmplementation of
Sewage Spill Containment Plan and
External Sewer Bypass Plan for
manholes to be removed and new
manhole installation as deemed
necessary by the Contractor and per
Section 01350 of the specifications.
206
EA$ $
3EA$
5EA $
1EA$
3EA$-E
$
$
$
rrr Quantities (except for "Lump Sum:" item numbers) are estimated and are for the purpose ofcomparing bid only.
Payment will be based upon actual quantities furnished, installed or constructed in accordance with the Contract Documents.
' The above prices include any amount payable by the Owner for taxes by reason ofthis contractBid Form BF.3
BID SCHEDULE II
Extensions'
Bid
1LS$_
The City of lmperial
Manhole and Laft Station Rehabilitation and New Manhole lnstallation Item
No,
207
208
210
211
212
auo) Unit
1LS$
Unit Bid
Price*
Bid
Description Extensions*
Furnish, install, and maintain traffic
control for existing manhole removal
and new manhole construction,
including preparing traffic control plans
and Encroachment Permits for approval
by City of lmperial.
Excavation, trench sheeting, shoring,
bracing, spoils handling, backfilling,
pavement surface and structural section
repair for existing manhole removal and
new manhole installations (9 EA).
Dewatering of excavations as required,
including handling of water into the
excavation.
Furnish and install 8-inch PVC C-900
(CL 165) force main pipe as indicated
on Detail No. 'l on Sheet No. 3
Furnish and install 12-inch PVC
C-900 (CL 165) force main pipe as
indacated on Detail No. 1 on Sheet No. 3
Potholing of existing utilitaes prior to
construction.
Total Bid Schedule ll $
$
1LS$
1LS$
a
$
75LF$
'l Ls$ $
1LS $s0,000 $s0,000
(Sum of Extension Nos.20l thru 213)
TOTAL BID PRICE FOR BID SCHEDULE II
(Figures)
DOLLARS
(DOLLAR AMOUNT IN WRITTEN FORM)
rr)Quantities (except for "Lump Sum:" item numbers) are estimated and are for the purpose of comparing bid only.
Payment will be based upon actual quantities furnished, installed or consrructed in accordance with the Contract Documents.
' The above prices include any amoun( payable by the Owner for taxes by reason ofthis contract.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid Form
BF4
q
67 LF $_
209
213 Field orders for appropriate
modifications to scope made by
Engineer and Owner for mutually
agreed upon prices with the Contractor.
BID SCHEDULE III
Item
No.
301
Unit Bid
Price.
Bid
Description Qtv.(1) Unit Extension*
lsolation of Cross Street 1LS $ $
wetwell, temporary sewage
bypass of about 500 gpm,
su rface preparation and coating
of wetwell in accordance with
Section 09875, and all other
work, as described in the
contract documents.
302 Preparation and
lmplementation of Sewage Spill
Containment Plan and External
Sewer Bypass Plan for Cross
St Lift Station as deemed
necessary by the Contractor
and as described in Section
02250 of the specifications.
.1 LS $ $
303 Force Account 1 LS $20,000 $20,000
Total Bid Schedule lll $
(Sum of Extension Nos. 301 thru 303) (Figures)
TOTAL BID PRICE FOR BID SCHEDULE III
DOLLARS
(DOLLAR AMOUNT IN WRITTEN FORM)
(r)Quantities (except for "Lump Sum:" item numbers) are estimated and are for the purpose ofcomparing bid only.
Payment will be based upon actual quantities fumished, insralled or constructed in accordance wirh the Contract Documents.
' The above prices include any amount payable by the Owner for taxes by reason ofthis contract, The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid Form
BF-5
PROPOSAL
BIDDING SHEET SUMIT'ARY
(to be filled in by Bidder)
TOTAL BID PRICE FOR BID SCHEDULE I (Nos. 101 thru 104)
TOTAL BID PRICE FOR BID SCHEDULE ll (Nos. 201 thru 2'13) TOTAL BID PRICE FOR BID SCHEDULE lll (Nos. 301 thru 303) TOTAL BID PRICE FOR SCHEDULES l, ll, and lll $
$
$
$
DOLLARS
(DOLLAR AMOUNT IN WRITTEN FORM)
The undersigned agrees that these Proposal/Bid Forms constitute a firm offer to the Owner which cannot be withdrawn for the number of Calendar Days indicated in the Notice lnviting Bids from and after the bid opening date, or until a Contract for the Work is fully executed by the Owner and a third party, whichever is earlier. The undersigned also agrees that if there is a discrepancy between the written amount of the Bid Price and the numerical amount of the Bid Price, the written amount shall govern.
Acknowledgement of reading above statement:
By
Date
' Prices include any amount payable by the Crty for taxes by reason of the Contract The City of lmperial
Manhole and Lift Station Rehabilitation and New lvlanhole lnstallation Bid Form
BF.6
Signature
ATTACHi'ENTS
Attached are the following forms which have been completed by Bidder and made a part of this bid:
1. List of Proposed Subcontractors;
2. NoncollusionAffidavit;
3. Contractor'sCertificateRegardingWorkers'Compensation
ADDENDA
Bidder also acknowledges receipt of the following Addenda, which Addenda have been considered by Bidder in submitting this Bid (if none, state "None"):
CONTRACTOR'S LICENSE
Bidder certifies that Bidder is currently licensed under the California State Contractor's License Law as follows:
COMPLETION TIME
The Project, including its respective components, must be substantially completed within One Hundred Eighty (180) Calendar days after the notice to proceed. Substantial completron is defined in the Special Requirements. Bidder certifies that it can complete the Project within this time period.
The City of lmperial
Manhole and Lifl Station Rehabilitation and New Manhole lnstallation Contract License
Num ber Name of Licensee Type of License
lssue and Expiration
date
Bid Form
BF.7
Addenda Nos.
Submitted by,
BIDDER'S NAME
By
Title :
BIDDER'S BUSINESS ADDRESS
BIDDER'S TELEPHONE AND FAX NUMBERS,
IF BIDDER IS A CORPORATION:
State and date of incorporation
IF A PARTNERSHIP OR JOINT VENTURE:
Full names of all partners or Joint venturers (attach additional pages if necessary) The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid Form
BF.8
I
a. Marked in the lower left-hand corner of the envelope The City of lmperial, Manhole and Lift Station Rehabilitation and New Manhole lnstallation - BID NO. 202541
b. Addressed to:
Jillian Mehdipour, Public Records Analyst
City of lmperial
420 South lmperial Avenue
lmperial, CA 92251
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation DIRECTIONS FOR SUBMITTING BIDS:
The envelope containing the original of this Bid Form with all attachments must be sealed, marked, and addressed as follows:
Bid Form
BF-9
LIST OF PROPOSED SUBCONTR,ACTORS
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
Manhole and Lift Station Rehabili tion and New Manhole lnstallation Bid 2025-01
lf awarded the Contract, Bidder shall employ the following subcontractors who will perform work or labor, or render service to the Bidder in or about the pro1ect, in an amount in excess of 0.5% of the bid lump sum listed on the Bid Form. lf no subcontract work is proposed, other than within the 0.5% limit set fo(h, Bidder shall so state. (Attach additional pages if necessary.)
DIR Registration Number
Date
Firm Name
Name Title
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation List of Proposed Subcontractors
1 NAME OF BIDDER:
Names and Addresses Description of Work
of Subcontractors to be Subcontracted
Bidder
Signed by
BID BOND
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
KNOWALL PERSONS BYTHESE PRESENTS: Thatwe
as Principal, and
as Surety, are held and firmly bound unto the City of lmperial, in the sum of [10% OF THE TOTAL AMOUNT OF THE BID] for the payment of which sum we hereby bind ourselves, our successors, heirs, executors, and administrators, jointly and severally, firmly as set out more fully herein.
The condition of the foregoing obligation is such that, whereas the above principal is about to submit to the City of lmperial a bid for the performance of the work for the above project in compliance with the plans and speciflcations therefore and pursuant to a published notice inviting bids.
Now, if the bid of the principal is accepted and the work awarded to the principal by the City of lmperial, and if the principal shall fail or neglect to enter into a contract, therefore, in accordance with the provision of said bid and the accompanying lnstructions to Bidders and to furnish adequate faithful performance and labor and material surety bonds and certificates of insurance to the satisfaction of the City of lmperial; then the total sum guaranteed by this bond is forfeited to the City of lmperial as liquidated damages. ln the event suit is brought by the City of lmperial and judgment is entered in its favor, the surety shall pay all costs incurred by the City in such suit, including reasonable attorneys' fees to be fixed by the Court, in addition to the above sum.
WTNESS our hands and seals this _ day of _,2025.
(Seal)
NOTE: Signatures of those executing for the surety must be properly acknowledged Bond No.
The City of lmperial
lVanhole and Lift Station Rehabilitation and New Manhole lnstallation Manhole and Lift Station Rehabilitation and New Manhole lnstallation (Not required if Certified Check of Cashier's Check accompanies Bid) By- Name./Title-
(Seal)
Bid Bond
BB-1
NONCOLLUSION AFFIDAVIT
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
(To Be Executed by Bidder and Submitted With Bid)
being first duly sworn, deposes and says that
he or she is of
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 a 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 of any other bidder, or to fix any overhead, profit, or cost element of the bid price, or of that of any other bidder, 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 data 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.
I declare under penalty of perjury under the laws of the State of California that the foregoing is true and correct.
Executed this _day of
_,
2025 at
Signature of:
Bidder, if the Bidder is an lndividual,
Partner, if the Bidder is a Partnership,
Officer, if the Bidder is a Corporation
Name
Title
_,
the
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Noncollusion Affidavit
I
Manhole and Lift Station Rehabilitation and New Manhole lnstallation State of California ) ss.
County of _ )
GENERAL CONDITIONS
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
Paragraph headings in this Contract are for convenience only, and are not to be construed to define, limit, expand, interpret, or amplifo the provisions of this Contract. When initially capitalized in this Contract, or amendments hereto, the following words or phrases shall have the meanings specified:
1.1 1 .2.2 Best Efforts - Those efforts which a com petent, experienced, and prudent contractor would use to perform and complete the requirements of this Contract in a timely manner, exercising the degree of care, competence, and prudence customarily imposed on a contractor performing similar work in the State of California.
1.2.3 Contract - This agreement, including all referenced documents, between the City of lmperial and Contractor for the performance of the Work, and subsequent written modifications executed by the City and Contractor.
1.2.4 Contaclor - The legal entity which executes this Contract with the City to perform the Work
1.2.5 Contract Man r- The title of the person designated by the City to be its representative with authority to act for and bind the City
1.2.6 Documentation - Drawings, plans, models, studies, surveys, specifications, reports, design analysis, data, policies, information, work product, proposals, and any other similar documents or material prepared or used in connection with the Work.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC- 1
Manhole and Lift Station Rehabilitation and New Manhole lnstallation 1,0 PARAGRAPH HEADINGS AND DEFINITIONS
1 .2.1 Adiusted Contract Price - The initial Contract Price adjusted for change orders, Force Majeure, termination for convenience or any other reason permitted by this Contract.
1.2.7 Final Completion Date - The date when the Work is completed in accordance with the Contract, including all Punch List ltems.
1.2.8 Force Maieure - An act of God, or event beyond the control of a party, including an act or omission of government, act or omission of civil or military authority, strike or lockout, act of a public enemy, war, blockade, 1 .2.10 Protect - Contractor shall furnish all labor, material, equipment and services and perform and complete all work required as per the project specifications.
1.2.11 Proiect Enqineer or Coordinator - The title of the person designated by the City to be its representative with authority to act for the City regarding engineering and construction matters.
1.2.13 Schedule - The time frame for the construction project as established by the City and/or the Contract Documents.
1.2.'14 Site - The area where Contractor shall perform the Work.
1.2.15 Work or Scope of Work - All obligations undertaken by Contractor pursuant to the Contract.
SCOPE OF WORK
Contractor shall perform and complete the Work in a safe manner, and shall supply all personnel, tools, equipment, and material to complete the Work. The scope of work is further established in the following documents: plans and Specifications.
Contractor shall perform and substantially complete the Work within Sixty (60) Calendar days after the date in the notice to proceed. After execution of this Contract, Contractor shall develop and submit for City's approval, a detailed construction schedule designed to meet City's project schedule. Any abnormal expenses such as premium time or overtime incurred by Contractor to meet the detailed schedule, unless specifically directed or approved by the City in writing, shall be borne by Contractor.
2.0 The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC-2
insurrection, riot, epidemic, landslide, earthquake, fire, storm, lightning, flood, washout, or civil disturbance which could not have been avoided through the exercise of reasonable care and prudence.
1.2.9 Price or Contract Price - The total sum to be paid by the City to Contractor for performance of the Work.
1 .2.'12 Punch List ltems - ltems of work comprising a part of the Work as set out on a Punch List prepared by the City, with said items to be completed by Contractor consistent with the terms and conditions and scope of the Contract.
3.0 SCHEDULE
The City shall compensate Contractor through progress payments according to percentage of completion and/or milestones, as determined by the City Contract Administrator or as agreed hereafter by the parties. The City shall not be obligated to make final payment(s) until Contractor has submitted to the City written evidence that the Work has been fully completed in accordance with this Contract, and satisfactory evidence that all of Contractor's indebtedness in connection with the Work has been paid or written releases provided of all potential liens arising out of this Contract. Upon receipt of such evidence, the City will record a Notice of Completion in lmperial County. City shall retain 5% of the Contract Price. Contractor may substitute securities or provide an escrow agreement pursuant to California Public Contracts Code section 22300.
5.0 INSURANCE AND BONDS
Prior to the beginning of and throughout the duration of the Work, CONTRACTOR and its subcontractors shall maintain insurance in conformance with the requirements set forth below. CONTRACTOR will use existing coverage to comply with these requirements. lf that existing coverage does not meet the requirements set forth herein, CONTRACTOR agrees to amend, supplement or endorse the existing coverage to do so.
CONTRACTOR acknowledges that the insurance coverage and policy limits set forth in this section constitute the mrnimum amount of coverage required. Any insurance proceeds available to CONTRACTOR or its subcontractors in excess of the limits and coverage identified in this Agreement and which is applicable to a given loss, claim or demand, will be equally available to AGENCY.
A. CONTRACTOR shall provide the following types and amounts of insurance:
VMthout limiting CONTRACTOR's indemnification of AGENCY, and prior to commencement of Work, CONTRACTOR shall obtain, provide and maintain at its own expense during the term of this Agreement, policies of insurance of the type and amounts described below and in a form satisfactory to AGENCY.
5. 1 .1 General Liab - CONTRACTOR shall commercial general liability insurance with coverage at least as broad as lnsurance Services Office from CG 00 01, in an amount not less than $1,000,000 per occurrence and $2,000,000 general aggregate, for bodily iniury, personal injury, and property damage, and a $2,000,000 completed operations aggregate. The policy must include contractual liability that has not been amended. Any endorsement restricting standard ISO "insured contract" language will not be accepted.
General Conditions
Lr(. - .t
4.O COMPENSATION AND PAYMENT
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation
5.1 .2 Automobile liability insurance. CONTRACTOR shall maintain automobile insurance at least as broad as lnsurance Services Office form CA 00 01 covering bodily injury and property damage for all activities of the CONTRACTOR arising out of or in connection with Work to be performed under this Agreement, including coverage for any owned, hired, nonowned or rented vehicles, in an amount not less than $1 ,000,000 combined single limit for each accident.
5.1 .3 Umbrella or excess liability insurance. [Optional depending on limits requiredl CONTRACTOR shall obtain and maintain an umbrella or excess liability insurance that will provide bodily injury, personal injury and property damage liability coverage at least as broad as the primary coverages set forth above, including commercial general liability, automobile liability, and employer's liability. Such policy or policies shall include the following terms and conditions:
A drop-down feature requiring the policy to respond in the event that any primary insurance that would otherwise have applied proves to be uncollectable in whole or in part for any reason; Pay on behalf of wording as opposed to reimbursement;
Concurrency of effective dates with primary policies;
Policies shall "follow form" to the underlying primary policies; and lnsureds under primary policies shall also be insureds under the umbrella or excess policies.
5.'1 .4 Workers' compensation insurance. CONTRACTOR shall maintain Workers' Compensation lnsurance (Statutory Limits) and Employer's Liability lnsurance (with limits of at least $1,000,000) for CONTRACTOR's employees in accordance with the laws of the State of California, Section 3700 of the Labor Code. ln addition, CONTRACTOR shall require each subcontractor to similarly maintain Workers' Compensation lnsurance and Employeis Liability lnsurance in accordance with the laws of the State of California, Section 3700 for all of the subcontractor's employees.
CONTRACTOR shall submit to AGENCY, along with the certificate of insurance, a Waiver of Subrogation endorsement in favor of AGENCY, its officers, agents, employees and volunteers.
5.1 .5 Pollution liability insurance. Environmental lmpairment Liability lnsurance shall be written on a CONTRACTOR's Pollution Liability form or other form acceptable to AGENCY providing coverage for liability arising out of sudden, accidental and gradual pollution and remediation. The policy limit shall be no less than $'1 ,000,000 dollars per claim and in the aggregate.
All activities contemplated in this Agreement shall be specifically scheduled on the policy as "covered operations." The policy shall provide The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
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coverage for the hauling of waste from the project site to the final disposal location, including non-owned disposal sites.
The named insureds shall be CONTRACTOR and AGENCY, including its officers, officials, employees, and agents. All Subcontractors (excluding those solely responsible for design Work) of any tier and suppliers shall be included as additional insureds as their interests may appear.
CONTRACTOR shall not be required to maintain property insurance for any portion of the Project following transfer of control thereof to AGENCY.
The policy shall contain a provision that all proceeds from the builder's risk policy shall be made payable to the AGENCY. The AGENCY will act as a fiduciary for all other interests in the Project.
5.2 Other provisions or requirements
5.2.1 Proof of insurance. CONTRACTOR shall provide certificates of insurance to AGENCY as evidence of the tnsurance coverage required herein, along with a waiver of subrogation endorsement for workers' compensation. lnsurance certificates and endorsements must be approved by AGENCY's risk manager prior to commencement of performance. Current certification of insurance shall be kept on file with AGENCY at all times during the term The City of lmperial General Conditions
Manhole and Lift Station Rehabilitation and New Manhole lnstallation GC - 5
5.1 .6 Builder's risk insurance. Upon commencement of construction and with approval of AGENCY, CONTRACTOR shall obtain and maintain builder's risk insurance for the entire duration of the Project until only the AGENCY has an insurable interest. The Builder's Risk coverage shall include the coverages as specified below.
Policy shall be provided for replacement value on an "all risk" basis for the completed value of the project. There shall be no coinsurance penalty or provisional limit provision in any such policy. Policy must include: (1) coverage for any ensuing loss from faulty workmanship, Nonconforming Work, omission or deficiency in design or spectfications; (2) coverage against machinery accidents and operational testing; (3) coverage for removal of debris, and insuring the buildings, structures, machinery, equipment, materials, facilities, fixtures and all other properties constituting a part of the Prolect; (4) Ordinance or law coverage for contingent rebuilding, demolition, and increased costs of construction; (5) transit coverage (unless insured by the supplier or receiving contractor), with sub-limits sufficient to insure the full replacement value of any key equipment item; (6) Ocean marine cargo coverage insuring any ProJect materials or supplies, if applicable; (7) coverage with sub-limits sufiicient to insure the full replacement value of any property or equipment stored either on or off the Site or any staging area. Such insurance shall be on a form acceptable to Agency to ensure adequacy of terms and sublimits and shall be submitted to the Agency prior to commencement of construction. of this contract. AGENCY reserves the right to require complete, certified copies of all required insurance policies, at any time.
5.2.2 Duration of coverage. CONTRACTOR shall procure and maintain for the duration of the contract insurance against claims for injuries to persons or damages to property, which may arise from or in connection with the performance of the Work hereunder by CONTRACTOR, his agents, representatives, employees or subcontractors. CONTRACTOR must maintain general liability and umbrella or excess liability insurance for as long as there is a statutory exposure to completed operations claims.
AGENCY and its officers, officials, employees, and agents shall continue as additional insureds under such policies.
5.2.3 Primary/noncontributing. Coverage provided by CONTRACTOR shall be primary and any insurance or self-insurance procured or maintained by AGENCY shall not be required to contribute with it. The limits of insurance required herein may be satisfied by a combination of primary and umbrella or excess insurance. Any umbrella or excess insurance shall contain or be endorsed to contain a provision that such coverage shall also apply on a primary and non-contributory basis for the benefit of AGENCY before the AGENCY's own insurance or self-insurance shall be called upon to protect it as a named insured.
5.2.4 Products/completed operations coverage. Products/completed operations coverage shall extend a minimum of three (3) years after project completion. Coverage shall be included on behalf of the insured for covered claims arising out of the actions of independent contractors. lf the insured is using subcontractors, the Policy must include work performed "by or on behalf' of the insured. Policy shall contain no language that would invalidate or remove the insurer's duty to defend or indemnify for claims or suits expressly excluded from coverage. Policy shall specifically provide for a duty to defend on the part of the insurer. The AGENCY, its officials, officers, agents, and employees, shall be included as additional insureds under the Products and Completed Operations coverage.
5.2.5 Agency's rights of enforcement. ln the event any policy of insurance required under this Agreement does not comply with these requirements or is canceled and not replaced, AGENCY has the right but not the duty to obtain the insurance it deems necessary and any premium paid by AGENCY will be promptly reimbursed by CONTRACTOR or AGENCY will withhold amounts sufficient to pay premium from CONTRACTOR payments. ln the alternative, AGENCY may cancel this Agreement.
5.2.6 Acceptable insurers. All insurance policies shall be issued by an insurance company currently authorized by the lnsurance Commissioner to transact business of insurance or is on the List of Approved Surplus Line lnsurers The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC-6
in the State of California, with an assigned policyholders' Rating of A- (or higher) and Financial Size Category Class Vll (or large| in accordance with the latest edition of Best's Key Rating Guide, unless otherwise approved by the AGENCY'S risk manager.
5.2.8 of contract provisions (non estoppel). CONTRACTOR acknowledges and agrees that any actual or alleged failure on the part of the AGENCY to inform CONTRACTOR of non-compliance with any requirement imposes no additional obligations on the AGENCY nor does it waive any rights hereunder.
5.2.9 5.2.10 Notice of cancellation. CONTRACTOR agrees to oblige its insurance agent or broker and insurers to provide to AGENCY with a thirty (30) day notrce of cancellation (except for nonpayment for which a ten (10) day notice is required) or nonrenewal of coverage for each required coverage.
5.2.11 Additional insured status. General liability policies shall provide or be endorsed to provide that AGENCY and its officers, officials, employees, agents, and volunteers shall be additional insureds under such policies.
This provision shall also apply to any excess/umbrella liability policies.
5.2.12 Prohibition of undisclosed coverage limitations. None of the coverages required herein will be in compliance with these requirements if they The City of lmperial General Conditions
Manhole and Lifi Station Rehabilitation and New Manhole lnstallation Gc - 7
5.2.7 \Naiver of subrogation. All insurance coverage maintained or procured pursuant to this agreement shall be endorsed to waive subrogation against AGENCY, its elected or appointed officers, agents, officials, employees and volunteers or shall specifically allow CONTRACTOR or others providing insurance evidence in compliance with these specifications to waive their right of recovery prior to a loss.
CONTRACTOR hereby waives its own right of recovery against AGENCY, and shall require similar written express waivers and insurance clauses from each of its subconsultants.
Requirements not limiting. Requirements of spectfic coverage features or limits contained in this Section are not intended as a ltmitation on coverage, limits or other requirements, or a waiver of any coverage normally provided by any insurance. Specific reference to a given coverage feature is for purposes of clarification only as it pertains to a given issue and is not intended by any party or insured to be all inclusive, or to the exclusion of other coverage, or a waiver of any type. lf the CONTRACTOR maintarns higher limits than the minimums shown above, the AGENCY requires and shall be entitled to coverage for the higher limits maintained by the CONTRACTOR. Any available insurance proceeds in excess of the specified minimum limits of insurance and coverage shall be available to the AGENCY.
include any limiting endorsement of any kind that has not been first submitted to AGENCY and approved of in writing.
5.2.13 Separation of insureds. A severabilrty of interests provision must apply for all additional insureds ensuring that CONTRACTOR's insurance shall apply separately to each insured against whom claim is made or suit is brought, except with respect to the insurer's limits of liability. The policy(ies) shall not contain any cross-liability exclusions.
5.2.'14 Pass through clause. CONTRACTOR agrees to ensure that its subconsultants, subcontractors, and any other party involved with the project who is brought onto or involved in the project by CONTRACTOR, provide the same minimum insurance coverage and endorsements required of CONTRACTOR. CONTRACTOR agrees to monitor and review all such coverage and assumes all responsibility for ensuring that such coverage is provided in conformity with the requirements of this section.
CONTRACTOR agrees that upon request, all agreements with consultants, subcontractors, and others engaged in the project will be submitted to AGENCY for review.
5.2.15 Agency's right to revise requirements. The AGENCY reserves the right at any time during the term of the contract to change the amounts and types of insurance required by giving the CONTRACTOR a ninety (90) day advance written notice of such change. lf such change results in substantial additional cost to the CONTRACTOR, the AGENCY and CONTRACTOR may renegotiate CONTRACTOR's compensation.
5.2.16 Self-insured retentions. Any self-insured retentions must be declared to and approved by AGENCY. AGENCY reseryes the right to require that self-insured retentions be eliminated, lowered, or replaced by a deductible.
Self-insurance will not be considered to comply with these specifications unless approved by AGENCY.
5.2.17 Timely notice of claims. CONTRACTOR shall give AGENCY prompt and timely notice of claims made or suits instituted that arise out of or result from CONTRACTOR's performance under this Agreement, and that involve or may involve coverage under any of the required liability policies.
5.2.18 Additional insurance. CONTRACTOR shall also procure and maintain, at its own cost and expense, any additional kinds of insurance, which in its own judgment may be necessary for its proper protection and prosecution of the Work.
5.3 Bonds - Contractor shall furnish the following surety bond with surety acceptable to City.
The Cily of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
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5.3.1 lfthe successful bid is in excess of$25,000, the successful biddershall be required to post a payment bond in the amount of the bid in accordance with California Civil Code Section $3247. This bond shall give labor and material suppliers direct right of action against the surety. Contractor shall furnish the Payment bond on a form acceptable by the City.
5.3.2 Successful Bidder shall post a Performance Bond in the amount of 100% of the Contract Price by a corporate surety authorized and admitted to issue such surety bond in the State of California.
5.4. 1 Should any surety upon any bond furnished in connection with this Contract become unacceptable to the City, or should any such surety fail to furnish reports as to its financial condition as may be requested by the City at any time while the bond is in force, Contractor shall promptly furnish such additional surety or alternate bond at Contractor's expense as may be required by the City to protect the interests of the City or of persons supplying labor or material in the performance of this Contract.
5.4.2 Contractor shall keep the suretres informed as to all material matters or changes affecting the project and thls Contract.
CONTRACTOR shall indemnify, defend with legal counsel approved by AGENCY, and hold harmless AGENCY, its officers, officials, employees and volunteers from and against all liability, loss, damage, expense, cost (including without limitation reasonable legal counsel fees, expert fees and all other costs and fees of litigation) of every nature arising out of or in connection with CONTRACTOR's negligence, recklessness or willful misconduct in the performance of work hereunder or its failure to comply with any of its obligations contained in this Agreement, except such loss or damage whrch is caused by the sole or active negligence or willful misconduct of the AGENCY. Should conflict of interest principles preclude a single legal counsel from representing both AGENCY and CONTRACTOR, or should AGENCY otherwise find
CONTRACTOR's legal counsel unacceptable, then CONTRACTOR shall reimburse the AGENCY its costs of defense, including without limitation reasonable legal counsel fees, expert fees and all other costs and fees of litigation. The CONTRACTOR shall promptly pay any final ludgment rendered against the AGENCY (and its officers, officials, employees and volunteers) with respect to claims determined by a trier of fact to have been the result of the CONTRACTOR'S negligent, reckless or wrongful performance. lt is expressly understood and agreed that the foregoing provisions are intended to be as broad
5.4 Sureties
6.0 INDEMNITY. DEFENSE AND HOLD HARMLESS AGREEMENT
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
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and inclusive as is permitted by the law of the State of California and will survive termination of this Agreement.
CONTRACTOR obligations under this section apply regardless of whether such claim, charge, damage, demand, action, proceeding, loss, stop notice, cost, expense, judgment, civil fine or penalty, or liability was caused in part or contributed to by an lndemnitee. However, without affecting the rights of AGENCY under any provision of this agreement, CONTRACTOR shall not be required to indemnify and hold harmless AGENCY for liability attributable to the active negligence of AGENCY, provided such active negligence is determined by agreement between the parties or by the findings of a court of competent jurisdiction. ln instances where AGENCY is shown to have been actively negligent and where AGENCY'S active negligence accounts for only a percentage of the liability involved, the obligation of CONTRACTOR will be for that entire portion or percentage of liability not attributable to the active neglgence of AGENCY.
7 .1 Phvsical Site Conditions - Contractor shall satisfy itself concerning the nature and location of the Work, the general and local conditions, and other restrictions affecting the Work. The failure of Contractor to acquaint itself with any applicable conditions and restrictions shall not relieve it from the responsibility for properly estimating either the difficulties or the costs of successfully performing the Work and completing this Contract, and shall not be grounds for adjusting either the price or the schedule.
7 .2 lndependent Contractor - Contractor represents that it is fully experienced and properly qualified to perform the Work, is properly licensed in the state where the Work is performed, and is equipped, organized, and financed to perform such Work. The Contractor or a subcontractor of the Contractor shall act as an independent contractor and not as an agent of the City in performing the Work and duties of this Contract.
7.3.1 Best Efforts - Contractor shall use Best Efforts in the performance of this Contract. Contractor shall, to the best of its abilities, cooperate with the City to enable the successful completion of the Work according to the terms of this Contract including, but not limited to, commitment of additional resources, material and personnel, if requested by the City, to assure that the Work is properly performed on time and completed in accordance with the provisions of this Contract.
7.3.2 Qualitv of Eouioment Supolied bv Contractor - Contractor shall provide and use only such construction equipment and facilities as are capable of The City of lmperial General Conditions
Manhole and Lift Station Rehabilitation and New Manhole lnstallation GC - i0 7 -O GENERAL REQUIREMENTS
7.3 PerformanceReouirements
producing the quality and quantity of Wo* required by this Contract within the time specified herein. Upon written notice from the City or its designated representative, Contractor shall promptly remove from the Site all unsatisfactory construction equipment and facilities furnished or provided by Contractor.
7.4 Precedence of Operatinq Facilities - Continu ity of service of the operating facilities is of the essence. ln the event of a conflict of interest between any and all Work and any operating facilities, the operating facilities shall have precedence.
7.5 Responsibility fo[ Work and Material - Contractor shall be responsible for and shall bear all risk of loss of or damage to Work in progress, all Work-related material and equipment delivered to the Site or in transit under Contractor control, until completion and flnal acceptance of the Work.
8.1 General - Notwithstanding any other provisions of this Contract to the contrary, the City reserves the right for any reason, without invalidating this Contract or without notice to sureties, to make any changes in the Work including the performance of additional services. Such change shall be made in writing by a City representative, except for emergency conditions, where such change shall be confirmed in writing.
8.2 Prrce of Chanqe - All cha nge orders shall be accepted by Contractor pursuant to the terms contained in this Contract and Contractor shall promptly proceed to implement such change. Should any change result in an increase or decrease in Price or a change in Schedule, Contractor shall, within 10 calendar days following receipt of the written change order, submit to the City a written proposal which illustrates the price for Contractor to perform the change and the proposed adjustment to the Schedule. Sufficient detail shall be given in the proposal to permit a thorough analysis and evaluation. No claim shall be made by Contractor based solely on the number or volume of changes made.
8.3 Price Adiustment - The price of such change will be agreed upon by the parties. lf the parties cannot agree, an adjustment will be determined by the City on the basis of Contractor's reasonable expenditures and savings, including a reasonable allowance for overhead and profit.
8.5 Contractor Obiections - ln the event a chan ge requested by the City would, in the opinion of Contractor, affect Contractofs ability to meet its obligation under the Contract, Contractor will deliver to the City, within 5 calendar days of receipt of The City of lmperial General Conditions
Manhole and Lift Station Rehabilitation and New Manhole lnstallation GC - 11
8.0 CHANGES
8.4 Deleqation - Only a City officer, or the designated City representative concerning the Project, may issue and sign written change orders on behalf of the City. the change request, written notice of the fact before accepting such change request. lf the City feels such a change is warranted, an appropriate modification to the Contract shall be made before the Contractor rs required to proceed.
8.6 Chanoes bv Contractor - The Contractor may propose changes in the specifications for reasons of improved quality, delivery or economy provided such changes do not impair quality or delivery. Such changes must be approved in writing by the City prior to implementation. Approval shall be at the discretion of the City.
9. 1 Performance and Workmanship - Contractor warrants that the workmanshi p performed by Contractor and its subcontractors will be performed in accordance with Best Efforts. The warranty period shall be for a period equal to 1 year after the Final Completion Date.
10.2 lnspection of Work - All Work and materials , both before and after installation, shall be subject to City's inspection, and any deficiencies detected by the City will be addressed by Contractor immediately. The City may take inventory and inspect the Work and witness tests thereon at all reasonable trmes and places during the progress of the Work. lf Contractor covers all or any portion of the Work prior to any inspection or tests as required by the Scope of Work, the cost of any necessary uncovering and replacing shall be borne by Contractor. '10.3.1 When Contractor, in its opinion, has completed the performance of the Work, it shall so notify the City in writing that the Work is completed and ready for final acceptance by the City. Wthin 10 calendar days after receipt of such written notice, the City shall inspect the Work and advise Contractor of its concurrence.
10.3.2 lf the City advises Contractor that the Work is not satisfactorily completed, the City shall at the time of such notice, submit to Contractor, a Punch List of all additions and corrections necessary for the completion of this Contract.
The City of lmperial General Conditions
Manhole and Lift Station Rehabilitation and New Manhole lnstallation GC - 12
9.0 WARRANry
1O.O RETENTION AND ACCEPTANCE OF MATERIAL AND WORKMANSHIP 1 0.1 Retention - The City shall retain 5% of the Contract price. The retentron shall be released (with the exception of 150% of any disputed amount) within 35 days after the date of final completion of the work. Contractor may substitute securities in place of the retained funds withheld by the City. Alternatively, an escrow agreement, in the form prescribed under Ca. Pub. Cont. Code Section 22300, may be used by Contractor.
10.3 Notice of Completion
10.3.3 Upon receipt of the Punch List, Contractor shall commence action with respect thereto at no cost to the City. All conections shall be made within the time period given in the Contract as established in the Project Schedule. Upon completion of such Wo*, Contractor shall again notify the City in writing that the Work is completed and ready for flnal acceptance by the City. Within 10 calendar days after receipt of such written notice, the City shall inspect the Work and advise Contractor whether it concurs. The punch List process will continue until the Work is completed to the satisfaction of the City. Contractor shall be obligated to make good, correct or modify any rejected matedal or workmanship prior to final acceptance of the Work by the City.
10.3.4 lf the City concurs that the Work has been completed satisfactorily, the City will record a Notice of Completion with the County of lmperial which will specify the Final Completion Date. Such Notice of Completion shall not be unreasonably withheld.
11.0 FORCE MAJEURE
ln the event either party by reason of a Force Majeure is rendered unable to perform its duties under this Contract, then upon the party giving written notice of the particulars and estimated duration of Force Majeure to the other party within 5 calendar days after knowledge of the occurrence of the Force Majeure, the party may have the time for performance of its duties extended for the period equal to the time performance is delayed by the Force Majeure. The effects of the Force Majeure shall be remedied with all reasonable dispatch, and the party giving notice shall use Best Efforts to eliminate and mitigate all consequences. A Force Majeure for which notice has not been given shall be an unexcused delay.
12.0 DELAYS AND EXTENSION OF TIME
Time for performance may be extended by the City because of delays such as Force Majeure, changes, or suspension. Any such extension shall not be grounds for a claim by Contractor for damages or for additional compensation, except as speciflcally authorized in this Contract. ln the event of delay in the performance of the Work not caused by the City or its representatives, whether or not the cause thereof is within the control of Contractor, the City shall be entitled to suspend the applicable portion of the scheduled payments for the period of such delay.
'l 3.'l General - The City may, at any time, terminate the Contract or any portion of the Work not then completed by giving Contractor written notice of termination.
Upon receipt of notice of termination, Contractor, unless the notice requires The City of lmperial General Conditions
Manhole and Lift Station Rehabilitation and New Manhole lnstallation GC - 13 ,I3.0 TERMINATION FOR CONVENIENCE
otheMise, shall (1) drscontinue Work on the date and to the extent specified in the notice, except Work necessary to preserve and protect the Work in progress, (2) place no further orders or subcontracts for material, services, or supplies related to terminated Work, (3) make every reasonable effort to procure termination of all orders, subcontracts, and rental agreements to the extent they relate to performance of Work terminated upon terms satisfactory to the City, and (4) otherwise minimize costs and mitigate damages to the City.
13.2 Compensation - ln the event of termination under this Section , there shall be an equitable adjustment to the Contract Price taking into account, among other things (1) decreases for Work not performed, (2) the cost of any work requested by the City from the date of termination.
14.0 TERMINATION FOR CAUSE, NOTICE AND CURE OF DEFAULT
14.1 General - The City may declare this Contract canceled for default by notifying Contractor in writing, should Contractor at any time (1) materially refuse or neglect to meet the Schedule(s), (2) refuse to supply sufficient and appropriately skilled workmen or equipment to perform the Work, (3) become insolvent or unable to meet its payroll or other current obligations.
14.2 Notice of Termination - Prior to termination for cause , the City shall give Contractor written notice describing such default in reasonable detail and demand that Contractor cure such default within 30 calendar days after receipt of such notice of default. lf Contractor does not cure the default within 30 calendar days after its receipt of such notice or if the default cannot be cured within such 30 calendar day period and Contractor has not initiated action or proposed a plan within such 30 calendar day period to cure the default within a reasonable period which the City reasonably agrees will cure such default, then the City shall have the right to terminate this Contract.
Contractor and its employees shall at all times comply with all applicable laws, including those relating to wages, hours, discrimination, and safety (including oAL/OSHA).
1 6.1 Prevailinq Waqe Law16.1.'l Not less than the general prevailing rate of per diem wages for work of a similar character in the locality in which this Contract is to be performed, and not less than the general prevailing rate of per diem wages for holiday and overtime work fixed as provided in Chapter 1 (commencing with The City of lmperial
Ivlanhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC-14
15.0 LAWS AND REGULATIONS
16,0 EMPLOYEES
Section 1720) Part 7, Division 2 of the Labor Code, shall be paid to all workers employed on this public work.
16. 1 .2 Should the prevailing wage rate be increased, decreased, or eliminated a corresponding adiustment shall be made to the Contract Price which shall reflect the effect of that change in or elimination of the prevailing wage rate.
16.2 Pavroll Records -
''16.2.1 Contractor and its subcontractors shall keep an accurate payroll record, showing the name, address, social security number, work classification, and straight time and overtime hours worked each day and week, and the actual per diem wages paid to each journeyman, apprentice, worker, or other employee employed by him or her in connection with the Project.
16.2.2fhe payroll records shall be certified and shall be available for inspection at all reasonable hours at the principal office of Contractor.
17.O SAFETY REOUIREMENTS
17.1 General - Contractor shall implement the following general safety precautions:
17.1.1 Safe Work - Contractor shall carry out the Work in a safe manner Contractor's site representative shall be knowledgeable of all applicable safety rules, regulations and practices that relate to the assigned work. lf necessary, a qualified safety representative should be contracted to fulfill this requirement.
19.0 AUTHORIZED REPRESENTATIVES AND NOTICES
19.2 Notice and Communications - All communications relatin g to the day to day activities under this Contract shall be exchanged between the representatlves of the City and Contractor. All legal notices and communications required under or related to this Contract shall be in writing, and shall be delivered personally or The City of lmperial General Conditions
Manhole and Liff Station Rehabilitation and New Manhole lnstallation GC - 15
18.0 GOVERNING LAW AND VENUE
This Contract shall be interpreted in accordance with the substantive and procedural laws of the State of California.
19.1 Representatives - Prior to commencement of the Work, the City and Contractor shall each designate a representative authorized to act in behalf of each party and shall advise the other party in writing of the name, address and telephone number of such designated representative and shall inform the other party of any subsequent change in such designation.
mailed by certified mail, postage prepaid, return receipt requested, to the representative of the City and Contractor identified below. Notice shall be effective on the date of delivery.
To the City
David Dale
Public Services Director
City of lmperial
420 South lmperial Ave.
lmperial, CA 9225'l
A party may change or supplement the addresses given above, or designate additional addresses, for purposes of this Section by giving the other party written notice of the new address in the manner set forth above.
19.3 Unfair Business Practice Claims - ln entering into a public works contract or subcontract to supply goods, services, or materials pursuant to a public works contract, the Contractor or subcontractor offers and agrees to assign to the City all rights, title and interest in and to all causes of action it may have under Section 4 of the Clayton Act (15 U.S.C. Sec. '15) or under the Cartwright Act (Chapter 2 (commencing with Section 16700) of Paft 2 of Division 7 of the Business and Professions Code), arising from purchases of goods, services, or materials pursuant to the public works contract or the subcontract. This assignment shall be made and become effective at the time the awarding body tenders final payment to the Contractor, without further acknowledgment by the parties.
19.4 Resolution of Claims - Claims of $375,000.00 or less shall be addressed as set forth in California Public Contracts Code SS20 104, set seq. ln general terms, said process contemplates a meet and confer procedure and non-binding mediation as a precursor to litigation.
19.5 Utilities Relocation - The provisions of Government Code Section 4215 are hereby incorporated by this reference. Said section provides, among other things, that the Contractor will be compensated for costs of locating, repairing damage not due to the failure of the Contractor to exercise reasonable care, and removing or relocating such utility facilities not indicated in the plans and specifications with reasonable accuracy, and for equipment on the Project necessarily idled during such work. Contractor shall not be assessed liquidated damages for delay in completion of the Project when such delay was caused by the failure of the public agency or the owner of the utility to provide for removal or relocation of such utility facilities.
lf Contractor discovers utility facilities not identified by City in the contract plans or specifications, Contractor shall immediately notify City and utility in writing.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC - 16
To Contractor.
lf either party to this Contract shall bring any action, claim, appeal, or alternative dispute resolution proceedings, for any relief against the other, declaratory or otherwise, to enforce the terms of or to declare rights under this Contract (collectively, an Action), the losing party shall pay to the prevailing party a reasonable sum for attorneys' fees and costs incurred in bringing and prosecuting such Actron and/or enforcing any ludgment, order, ruling, or award (collectively, a Decision) granted therein. Any Decision entered in such Action shall provide for the recovery of attorneys' fees and costs incurred in enforcing such Decision. The court or arbitrator may fix the amount of reasonable attorneys' fees and costs on the request of either party. For the purposes of this paragraph, attorneys' fees shall include, without limitation, fees incurred in the following: (1 ) postjudgment motions and collection actions; (2) contempt proceedings; (3) garnishment, levy, and debtor and third party examinations; (4) discovery; and (5) bankruptcy litigation. "Prevailing party" within the meaning of this paragraph includes, without limitation, a party who agrees to dtsmiss an Action on the other party's payment of the sums allegedly due or performance of the covenants allegedly breached, or who obtains substantially the relief it seeks.
22.0 ASSIGNMENT
Contractor shall not assign the rights, nor delegate the duties, or otherwise dispose of any right, title, or interest in all or any part of this Contract, or assign any monies due or to become due to Contractor without the prior written consent of the City. Any such approved assignment or delegation shall be for the benefit of, and shall be binding on Contractor, assignee, and all future successors; and shall not relieve Contractor, assignee, or future successors of any duties or obligations. lf the City approves any assignment of monies due or to become due to Contractor hereunder, such assignment shall not become effective until at least 30 calendar days after City's approval.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC - ',t7
20.O ATTORNEYS FEES
21.0 WAIVER
The failure of the City to insist upon strict performance of any of the terms and conditions of this Contract, or to exercise or delay the exercise of any rights or remedies provided by this Contract or by law, or the acceptance of Work or payment for Work shall not release Contractor from any of the responsibilities or obligations imposed by law or by this Contract and shall not be deemed a waiver of any right of the City to insist upon strict performance of this Contract. None of the provisions of the Contract shall be considered waived by either party except when such waivers are agreed upon in writing by the parties.
The City will be deemed to have accepted Contractor's performance of the Work when the City officer or manager signing this Contract, or the designated representative of said officer or manager, records a Notice of Completion that the Work is accepted.
This Contract has been executed by the duly authorized officers of the parties and shall be effective as of the date that the PROJECT CONTRACT EXECUTION DOCUMENT is signed by the parties.
When the Work involves trenching of more than four feet in depth, Contractor shall promptly, and before the following conditions are disturbed, notify the City, in writing, of any:
25.1 Material that the Contractor believes may be material that is hazardous waste, as defined in Section 251 17 of the Health and Safety Code, and that is required to be removed to a Class I, Class ll, or Class lll disposal site in accordance with provisions of existing law.
25.2 Subsurface or latent physical conditions of Site differing from those indicated.
Upon receipt of such notice, City shall promptly investigate the conditions, and if it finds that the conditions do materially so differ, or do involve hazardous waste, and cause a decrease or increase in the Contractor's cost of, or the time required for, performance of any part of the work, shall issue a change order under the procedures described in the contract.
ln the event that a dispute arises between the City and the Contractor whether the conditions materially differ, or involve hazardous waste, or cause a decrease or increase in the Contractor's cost of, or time required for, performance of any part of the Work, the Contractor shall not be excused from any scheduled completion date provided for by the Contract, but shall proceed with all Work to be performed under the Contract. The Contractor shall retain any and all rights provided either by Contract or by law which pertain to the resolution of disputes and protests between the parties.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation General Conditions
GC - 18
23.0 ACCEPTANCE
24.O EXECUTION AND EFFECTIVE DATE
25.0 PRECAUTIONS ON THE JOB SITE
25.3 Unknown physical conditions at the Site of any unusual nature, different materially from those ordinarily encountered and generally recognized as inherent in work of the character provided for in the Contract.
CERTIFICATE OF CONTR^ACTOR REGARDING
WORKERS' COMPENSATION
The successful Bidder shall execute the following certificate:
I am aware of the provisions of Section 3700 of the Labor Code which require every employer to be insured against liability for workers' compensation or to undertake self-insurance in accordance with the provisions of that code, and I will comply with such provisions before commencing the performance of the work of this Contract.
Dated Contractor
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Workers' Compensation
PROJECT CONTRACT EXECUTION DOCUMENT
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Bid 2025-01
DATE OF CONTRACT
The City of lmperial and Contractor named above hereby mutually agree to perform this Contract in strict accordance with the following designated documents which were a part of the bid or required to be submitted under the lnvitation for Bids as a part of the Contract Documents and which are hereby incorporated into this Contract by reference.
CONTRACT DOCUMENTS
1 . Notice to Bidders;
2. lnstructions to Bidders;
3. Bid Form, with Required Attachments,
4. General Conditions,
5. Specifications;
6. All Addenda to the Contract Documents;
7. Payment and Performance Bonds Submitted by Contractor;
8. Certificates of lnsurance Submitted by Contractor, and
9. Certificate RegardingWorkers' Compensation.
This Contract, together with all documents and exhibits incorporated herein by reference, constitutes the entire agreement of the parties. All prior or contemporaneous verbal agreements between the parties are revoked by this Contract. ln the event any section, sentence, clause or phrase of the Contract is adjudicated by a court of last resort, and of competent jurisdiction, to be invalid or Execution Document
NAME AND ADDRESS OF CONTRACTOR:
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation illegal, the remainder of this Contract shall be unaffected by such adjudication, and all other provisions of this Contract shall remain in full force and effect as though the section, sentence, clause or phrase so adjudicated to be invalid had not been included herein.
PROJECT DESCRIPTION
Contractor shall furnish all labor, material, equipment, and services and perform and complete all work required for the Manhole and Lift Station Rehabilitation and New Manhole lnstallation.
ALTERATIONS
The following alterations were made in this contract before it was signed by the parties hereto (if no alternates, state "NONE"):
The Project must be completed as set forth in the Project Schedule. Bidder certifies that he/she can complete the Project, ignoring Delays and Changes as defined in the General Conditions as set forth in the Project Schedule.
THE CITY OF IMPERIAL CONTRACTOR
Signature
Title
Attest
Jillian Mehdipour, Public Records Analyst
City Clerk
BtD 2025-01
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Signature
Name
Tifle
EMPLOYER IDENTIFICATION
NO
(As used on Employer's Quarterly
Federal Tax Return, U.S. Treasury
Department Form 941)
Execution Document
lN WITNESS WHEREOF, the parties hereto have executed this contract as of the date entered on the flrst page of the contract.
SPECIAL REQUIREMENTS
TABLE OF CONTENTS
OF SPECIAL REQUIREMENTS
Paqe
l. THE REQUIREMENT....... SR- I
2- CONTRACT COMPLETION SCHEDULE SR-I
l. RIGHTS-OF-WAY SR- I
I PERMITS AND FEES SR.2
j
9. 13. TEMPORARY SEWER BYPASS..... .............. SR.8
14. ACCESS TO CONFINED SPACES IN EXISTING STRUCTURES......................... SR.9
15. MISCELLANEOUSSPECIALCONDITIONS ........... sR-10
DATA TO BE SUBMITTED BY CONTRACTOR........... ........... SR-3
6. MATERIAL FURNISHED BY CONTRACTOR . SR.5
7. POTHOLINC OF EXISTING UTILITIES BY CONTRACTOR . SR.5
8. CONSTRUCTION WATER SR-6
r 0. CONSTRUCTION VIDEO PHOTOGRAPHY................ ............. SR-6 I I. PROTECTION OF EXISTING IMPROVEMENTS. RESTORATION OF WORK SITE AND DISPOSAL OF SPOIL AND WASTE MATERTALS .......... sR-7 G \20 I 8\ I 8-02 I nspecifications\Special Requirements docx Manhole and Lift Station Rehabilitation and New Manhole Installation Bid No. 2025-01
,1. THE REQUIREMENT
The Contractor shall inspect the specified existing brick manholes and existing wet well at the Cross Street Lift Station within the City of lmperial's sewer service area and provide a recommendation to the City to either rehabilitate or replace the existing structures. As part of the work, the Contractor may need to bypass existing sewer flows, provide traffic control, and repair existing surface, for the City of lmperial, lmperial County, California; furnishing all labor, materials, equipment, and methods, necessary to complete said construction. The Contract work is listed in the Bid ltem Schedule as Bid Schedules l, ll, and lll.
2. CONTRACT COMPLETION SCHEDULE
All work under this project shall be completed in One Hundred Eighty (180) calendar days following the date the City provides written "Notice of Award" of Contract.
Completion time in calendar days includes Saturdays, Sundays, and holidays.
IF CONTRACTOR DOES NOT CONFORM TO THE ABOVE LISTED CONTRACT
COMPLETION SCHEDULE FOR BID SCHEDULE I, THEN THE OWNER WILL ENFORCE THE AGREEMENT IN THE CONTRACT APPENDIX TITLED ''LIQUIDATED DAMAGES''.
3. RIGHTS-OF-WAY
A. GENERAL
Construction under these Special Requirements, Basic Specifications, and Drawings is located upon the land and/or near existing interference facilities under the jurisdiction of the following organizations:
City of lmperial
County of lmperial Public Works
Southern California Gas Company
lmperial lrrigation District
The City of lmperial
Manhole and Lift Station Rehabalitation and New lvlanhole lnstallation Special Requirements
SR.1
SPECIAL REQUIREMENTS
1. 2.
J.
4. B. CITY OF IMPERIAL
The Cig's existing water and sewer facilities are shown on the contract drawings, in accordance with the recorded locations per the City's records.
It shall be the Contractor's responsibility to conduct all his operations within the easements provided for him as shown on the Drawings. Additional easements that may be required by the Contractor to complete the work as hereby proposed shall be obtained by the Contractor at his own expense.
C. OTHER UTILITIES AND ORGANIZATIONS
The existing underground facilities are shown on the contract drawings in accordance with recorded locations per the particular utility's atlas sheets.
Refer to section titled "Permits and Fees" for additional information.
4. PERMITS ANO FEES
A. GENERAL
Contractor shall secure at his own expense all permits and/or licenses necessary to the prosecution of the contract work, except for any permits and/or licenses stated herein to have been secured and paid for by the City.
Contractor shall comply with the applicable requirements of all permits and/or licenses that have been secured by the City, all at no additional cost to the City.
The Contractor shall determine and comply with all the applicable rules and regulations of the utilities and organizations listed in Paragraph "A" of section titled "Rights-of-Way" of these Special Requirements. The Contractor shall contact all of the listed utilities and/or organizations prior to the start of construction so they may mark the exact location of their facilities or utilities that may be in conflict with this project.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnslallation B
Special Requirements
SR.2
RULES AND REGULATIONS OF UTILITIES AND OTHER
ORGANIZATIONS
The cost of any work necessitated for the convenience of the Contractor during construction is reimbursable to that particular utility or organization, and the Contractor shall pay such charges to said utility or organization at no additional cost to the City.
C, CITY OF IMPERIAL
Contractor shall contact the City of lmperial on the requirements of encroachment permit including but not limited to, traffic control, pavement removal and restoration, working area, staging area and working hours prior to bid the project. Contractor shall include all his own expense in the bid proposal and no additional compensation will be allowed.
The Contractor shall determine and comply with all City rules and regulations applicable to the contract work, at no additional cost to the City.
The fee for the City of lmperial will be waived for the Contractor The Contractor shall obtain Business Registratron from the City of lmperial The Contractor shall pay the associated fee at his own expense.
5. DATA TO BE SUBMITTED BY CONTRACTOR
Contractor shall submit to the Engineer for approval detailed shop drawtngs and schedule for cylinder thicknesses, etc., for straight pipe and for all specials, flttings, and connections for all mainline piping. No pipe shall be manufactured until the thickness and .joint detail drawings have been approved.
Owner requires four (4) sets of approved plans. The Owner will review and return submittals withrn ten (10) working days. The Contractor shall email an advanced copy of all submittals in PDF format to the City's Construction Manager and Webb Associates Pro.iect Manager.
The Engineer's approval of the Contractor's submittal data shall not relieve the Contractor from having the entire responsibility for the correctness of details and dimensions. The Contractor shall assume all responsibility and risk for misfits due to any errors in the Contractor's submittal data.
The City of lmperial
Manhole and Lifl Station Rehabilitation and New Manhole lnstallation Special Requirements
SR.3
Successful Bidder shall be required to submit a construction schedule within ten ('10) calendar days following award of contract- The schedule shall conform to the completion schedule stated herein, and shall show dates for beginning and completing all aspects of contract work, including expected dates (both delivery and installation) for the required submittal data. Bidder shall understand that this schedule will be tentative, and subject to modification and updating by the Contractor (as approved by the City) as the contract work progresses. The schedule shall generally provide the following main items along with corresponding details:
o Subm ittals
. Review and approval period
. Material delivery
. Schedule of construction
- Potholing
- Priority connections
- lnstallation
- Testing
- Final site work and cleanuP
ln addition to the above, the Contractor shall submit to the Engineer for approval, manufacturer's data sheets, brochures, etc. for appurtenant materlals, shoring and bracing design, etc. A list of the minimum required submittals is as follows:
ApDurtena nt Submittals
Manhole Repair Materials
Precast Manholes
ManholeAy'y'etwell Liner Material
Concrete Mix Designs
AC Paving Mix Designs
Aggregate Base Gradation
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Contractor shall submit updated project schedules to the City as follows:
o Once per month after Contractor receives written "Notice of Award" of contract . Twice per month when Contractor has mobilized for construction . Any time a change in the schedule and/or change in work has occurred o Submitted with progress pay requests (status/completion items as shown on the schedules shall be consistent with the progress pay requests) Special Requirements
sR-4
6. MATERIAL FURNISHED BY CONTRACTOR
The Contractor shall furnish all materials necessary to complete the contract work, all in strict accordance with the Contract Documents.
ln addition, the Contractor shall furnish all labor, skills and services required for the installation of all materials to provide the Owner with a complete pro.iect, in accordance with the Contract Documents.
The Engineer has shown from a record research the approximate location of known underground interference facilities. lf required, Contractor shall field determine the exact location and depth of all existing underground interference and provide the City the pothole data in the event there is a conflict with the proposed pipeline alignment or grades prior to construction of the mainline. Contractor shall "pothole" all utility line crossings, unless the utility "potholes", in which event Contractor pays any potholing charges from the utility. The City reserves the right to make minor ad.justments in alignment and grade, all at no additional cost to the City.
The horizontal position of existing underground utilities, including existing water mains, as shown on the drawings, were determined by record. Where no elevation is shown, the Contractor shall excavate the utilities shown to be within the construction area, and verify their position prior to construction. Any variation from the positions shown on the drawings with the position determined by verification shall be immediately reported to the Engineer.
Ad.justments to the alignment and depth of the proposed water main, and to the connection details as shown on the drawings, shall be made based on the actual position and condition of the existing utilities as determined from the above verifications. \Iy'here underground main distribution conduits such as water, gas, sewer, electric power, telephone or cable television are shown on the Plans, the Contractor, for the purpose of preparing a Bid, shall assume that every property parcel will be served by at least one (1) service connection for each type of utility.
As provided in Section 4216 of the California Government Code, at least two (2) working days prior to commencing any excavation, if the excavation will be conducted in The City of lmperial
Manhole and Lifi Station Rehabilitation and New Manhole lnstallation Special Requirements
SR-5
7. POTHOLING OF EXISTING UTILITIES BY CONTRACTOR
an area which is known, to contain subsurface installations, the Contractor shall contact the regional notification center (Underground Service Alert to Southern California) and obtain an inquiry identification number.
8. EXISTING UNDERGROUND UTILITIES
Contractor shall understand that the existing underground facilities as shown on Drawings are from record only, and NO FIELD CHECK was made to establish their exact location. Also, other underground facilities may exist. Therefore, it shall be Contractor's responsibility to locate, protect, preserve, etc., all existing underground or overhead facilities, in accordance with other applicable provisions of the Contract Documents.
9. CONSTRUCTION WATER
Owner will furnish construction water to the Contractor, free of charge, from existing water systems adjacent to portions of the work. The Contractor shall furnish and install all necessary piping, certified backflow devices, fittings, connections, pumps, gages, etc., required to provide approved facilities to deliver construction water into pipelines to be constructed herein. Contractor shall fill all pipelines with construction water and may (through hydrants, blowoffs and air valves, etc.) obtain construction water to be used in compacting trench backfill. Contractor shall develop any other sources of construction water at his own expense.
The Contractor will be required to obtain a hydrant meter from the City for any construction water utilized from the City's system.
10. CONSTRUCTIONVIDEOPHOTOGRAPHY
B. VIDEO PHOTOGRAPHY
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Special Requirements
sR-6
A. DESCRIPTION
This Section covers pre-construction video photography of the work area to support proof of pre-existing pavement conditions and sign locations for visual comparison to the post-construction conditions. The requirements specified in the Condition of Contract also form part of this Section.
Provide DVD (video file format to be viewable on a standard DVD player/computer and/or as approved by the City) of the site prior to placing markings of any kind on the pavement, sawcutting or removal of materials C. DESCRIPTION
D, TECHNIQUE
Provide factual presentation. Provide correct exposure and focus, high resolution and sharpness. Video construction area from a vehicle moving at a slow rate of speed to permit Owner to view the DVD and determine pre-existing conditions. Provide audio explanation of pavement failure areas and of other items which require special notation.
Areas of local distress shall be videoed with the camera held without moving, using zoom control to record pavement cracking and alligatoring.
E. SUBMITTALS
11. PROTECTION OF EXISTING IMPROVEMENTS, RESTORATION OF WORK
SITE ANO DISPOSAL OF SPOIL AND WASTE MATERIALS
Contractor shall complete operations so that existing amprovements (including road and other paved surfaces adjacent to or in the vicinity of the work site) are not damaged.
Contractor shall repair and restore, at Contractor's expenses, all disturbed or damaged private or public improvements which results from Contractor's operations (except that which is specifically a part of the contract work) to the satisfaction of the City, or the agency having jurisdiction over said improvements.
All work sites shall be restored to pre-job conditions and shall meet the requirements of the City, Agencies who have .iurisdiction and property owner(s). The Contractor shall repair or replace at his expense the damages as directed by the City.
The City is obligated to keep visual impact of the work sites to a minimum, therefore, the Contractor is required to restore all areas altered by construction to pre-existing Special Requirements
SR-7
List name of project, orientation of view, date and time of view, name and address of photographer.
Contractor shall deliver the DVD(s) within three days after exposure with transmittal letter. The Owner will retain one of each DVD which will be the permanent record.
The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation conditions, unless shown otherwise on the Drawings. Such areas shall include, but shall not be limited to areas used for travel, parking, and storage of vehicles, equipment and materials or ad.jacent areas impacted by facilities construction.
The Contractor shall be responsible for the proper disposal of all waste materials resulting from project operations, including rubbish, packaging materials, discarded equipment parts, and damaged construction materials, in a manner and at locations suitable to the City and all health and other regulatory agencies.
12. MANHOLECONSTUCTION
All sewer manholes are to be constructed in accordance with City of lmperial Standard Detail No. 200, unless speciflcally stated on the construction drawings. ln existing non-paved areas, the contractor shall install a 6-foot by 6-foot square concrete pad around manholes. The pad shall be minimum of 6-inch thick. Manhole rim elevation shall be 6 inches above the existing grade unless stated othenivise on the construction drawings.
Contractor shall install a water{ight manhole lid with an approved locking mechanism per Construction Drawings and specifications. ln the paved streets Contractor shall construct a concrete collar around manholes. The collar shall be 1 foot in width, and 6 inches in depth. \Mrere called out on the proiect plans, the cost for furnishing and installing a pad, collar, water tight or locking lid shall be included in the unit price per manhole, and no additional compensation will be made therefore.
13. SEWER BYPASS
Should the Contractor disrupt the operation of existing sanitary sewer facilities, or should disruption be necessary for performance of the work, the contractor shall bypass the sewage flow around the Work, provide pumper trucks at the lift station, or provide a flow through system. sewage shall be conveyed rn closed conduits and disposed of in a sanitary sewer system. Sewage Shall not be perm itted to flow in trenches nor be covered by backfill. \ly'henever sewage bypass and pumping is required by the work, or the contractor so elects to perform, the contractor shall submit a working drawing detailing its proposed plan of sewage bypass and pumping in accordance with Section 02250. sewage Bypass and Pumping Plan - The plan shall indicate the locations and capacities of all pumps, sumps, suction and discharge lines. Equipment and piping shall be sized to The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Special Requirements
SR-8
handle the peak flow of, the section of sewer line to be bypassed and pumped. Precise flow measurements have not been obtained. The Contractor shall rnclude all costs of bypassing the sewer in the appropriate bid items and schedule all efforts in his schedule and no further compensation will be made to the Contractor by the City. Bypass piping, when crossing areas subject to traffic loads, shall be constructed in trenches with adequate cover and otherwise protected from damage due to traffic. Lay-flat hose or aluminum piping with an adequate casing and/or traffic plates may be allowed if so approved by the Engineer. Bypass pump suction and discharge lines that extend into manholes shall be rigid hose or hard pipe. Lay flat hose will not be allowed to extend into manholes. The Contractor shall provide a backup bypass pumping system in case of malfunction. The backup bypass system shall provide 100 percent standby capability, and be in place and ready for immediate use. Each standby pump shall be a complete unit with its own suction and discharge piping. ln addition to the backup system, the Contractor shall furnish and operate vacuum trucks when required by the Plans or Special Provisions. No additional compensation will be made to the Contractor by the City for overnight operations.
Spill Prevention and Emergency Response Plan - The Contractor shall prepare and submit a spill prevention and emergency response plan. The plan shall address implementation of measures to prevent sewage spills, procedures for spill control and containment, notifications, emergency response, cleanup, and spill and damage reporting.
The plan shall account for all storm drain systems and water courses within the vicinity of the Work which could be affected by a sewage spill. Catch basins that could receive sprlled sewage shall be identlfied. Unless otherwise specified in the Special provisions, these catch basins shall be sealed prior to operating the bypass and pumping system. The Contractor shall remove all material used to seal the catch basins when the bypass and pumping system operations are complete. The Contractor shall be fully responsible for containing any sewage spillage, preventing any sewage from reaching a watercourse, recovery and legal disposal of any spilled sewage, any fines or penalties associated with the sewage spill imposed upon by the Agency and/or the Contractor by lurisdictional regulatory agencies, and any other expenses or liabilities related to the sewage spill. ,14. ACCESS TO CONFINED SPACES IN EXISTING STRUCTURES
The contractor's attention is directed to the General lndustry safety orders of the state of california, Article 108, Permit-Required confined spaces, section 5157 (Refer to california Code of Regulations, Title 8, Confined Spaces, Sections 5156, 5157 and 5158).
The City of lmperial
Manhole and Lift Station Rehabilatation and New Manhole lnstallation Special Requirements
SR.9
ln addition to these guidelines, Contractor shall perform confined space entry per the Greenbook Standards, latest edition.
15. MISCELLANEOUSSPECIALCONDITIONS
A. PROJECT MEETING
(1) ATTENDEES. Unless otherwise specified or required by the Owner, the meetings shall be attended by the Owner, the Engineer, the lnspector, and the Contractor and his Superintendent. Subcontracts may attend when involved in the matters to be discussed or resolved but only when requested by the Owner, Engineer, or Contractor. (3) MEETING SCHEDULE. The dates, times and locations for the progress meeting shall be agreed upon and recorded at the preconstruction conference. Then after, changes to the schedule shall be by agreement between the Owner and Contractor, with approprtate written notice to all parties involved.
(4) PRECONSTRUCTION CONFERENCE. Prior to issuance of the Notice to Proceed, a preconstruction conference shall be held at the location, date, and time designated by the Owner. ln addition to the attendees named herein, the meeting shall be attended by the representatives of regulatory agencies having jurisdiction of the The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation Special Requirements
SR-10
The Contractor shall provide personnel and equipment, including standby personnel, observers, and authorized competent person to stand by while entrants are inside the space, temporary ventilation equipment, or self-contained breathing apparatus, to assist the personnel of the Owner's Representative in obtaining access to permit-required confined spaces.
(2) MEETING RECORDS. The Owner will record minutes of each meeting and will furnish copies to the Contractor within five (5) working days thereafter. lf the Contractor does not submit written objection to the contents of such minutes within seven (7) days after presentation to him, it shall be understood and agreed that the Contractor accepts the minutes as a true and complete record of meeting.
(5) EXECUTION AND SUBMITTAL OF DOCUMETNS. At the
preconstruction conference, unless otherwise specified or agreed by the Owner and Contractor, the Contract Agreement shall be executed by the parties hereto and the Contractor shall present to the Owner the Bonds, certificates of insurance, progress schedule, schedule of values, written safety program, and all other preconstruction documents required of him by the Contract Documents.
(6) AGENDA. ln general, the matters to be discussed or resolved and the instructions and information to be furnished to or given by the Contractor at the preconstruction conference include.
a) Progress meeting schedule.
b) Progress schedule and schedule of values submitted by Contractor.
c) Communication procedures between the parties.
d) The names and titles of all persons authorized by the Contractor to represent and execute documents for him with samples of all authorized signatures.
e) The names, addresses, and telephone numbers of all those authorized by the Contractor to act for him in emergencies. f) Construction permit requirements, procedures, and posing.
S) Public notice of starting Work.
h) Procedures concerning the installation of Work on public or private property not owned by the Owner.
i) lnterfaces with the Contractors or with utility owners. j) Access and rights-of-way furnished by the Owner.
k) Forms and procedures for Contractor's submittals.
l) Change Order forms and procedures.
m) Payment application forms and procedures and the revised progress schedule and reports to accompany the applications. n) Contractor's safety and training program, and designation of the Contractor's Safety officer and his qualifications.
o) First-aid and medical facilities to be furnished by Contractor_ The Caty of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation prolect, Owners and Operators of affected utilities, if required, and such other persons the Owner may designate.
Special Requirements
SR.1,I
p) Contractor's provisions for barricades, traffic control, utilities, sanitary facilities, and other temporary facilities and controls.
Project sign for Owner if required by the Specifications.
Engineer, lnspector and his duties.
Construction surveyor and initiation of surveying services.
Testing laboratory or agency, and testing procedures.
Methods of construction proposed by the Contractor.
Equipment proposed for use during construction by the
Contractor.
Procedures for payroll and labor cost reporting by the
Contractor.
Procedures to ensure nondiscrim ination in employment on and for the Work.
lssuance of the Notice to Proceed.
Matters concerning construction within the city/county (traffic, police, fire, mail and waste collection services).
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Manhole and Lift Station Rehabilitation and New Manhole lnstallation w)
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(7) PROGRESS MEETINGS. The meetings shall be held on a weekly basis in accordance with the agreed schedule. All matters bearing on the progress and performance of the Work since the preceding progress meeting shall be discussed and resolved, including without limitation any previously unresolved matters, deficiencies in the Work or the methods being employed for Work, and problems, difficulties, or delays which may be encountered.
(8) SPECIAL MEETINGS. Upon appropriate notice to the other parties, special meetings may be called by the Owner, Engineer, or Contractor.
Special meetings will be held where and when designated by the Owner for the following purposes unless the matters are resolved at the preconstruction conference or at subsequent progress meetings. (9) REGULATORY AGENCIES. When requested, the Contractor shall attend meetings held or required by the governmental regulatory agencies having jurisdiction of the Project or by various California State agencies or Owners of affected utilities.
Special Requirements
SR.12
B. REIMBURSEMENT TO OWNER FOR COMPACTION RE-TESTS
C. PARTIAL PAYMENT REQUESTS
Contractor shall submit all invoicing and requests for payment for completed portions of the work directly to the District for approval on the District's approved form. Said invoicing shall be submitted at intervals no less than 30 calendar days and shall include an updated project schedule and updated as-built drawings for processing.
D. CONTRACTOR'SFIELDSUPERINTENDENT
The Contractor shall be required to have a field superintendent, from his o anlza , on the jobsite dunnq construction activities, to manage the affairs of the Contractor and to receive directions or instruction from the District or Engineer. Contractor shall provide the District with a 24 hour emergency phone number for field superintendent prior to beginning of construction.
E. COOPERATION WTH OTHER CONTRACTORS
The Contractor shall cooperate with other Contractors that may be working within the project area, as directed by the District.
F. REQUIRED CERTIFIED PAYROLL SUBMITTALS
The City of Imperial
Manhole and Lifi Station Rehabilitation and New Manhole lnstallation Special Requirements
SR-13
The Owner will arrange for a soils engineering laboratory to perform the trench compaction testing for the water pipelines. The Owner will pay for required compaction tests, with the exception that the Owner shall be reimbursed by the Contractor for any compaction tests that fail to meet the minimum relative compaction requirements. The Bidder is hereby notified that the amount of the reimbursement to the Owner shall be Seventv-Five Dollars ($75.00) for each required retest for insufficient compaction, said amount including costs for testing, overhead and administration.
The District shall require the Contractor to submit Certified payroll records per Section entitled "Prevailing Wage" of the General provisions_ The Contractor shall prepare said certified payroll records on a form acceptable The City of lmperial
Manhole and Lift Station Rehabilitation and New Manhole lnstallation to and approved by the Owner; and the certified payroll records shall be submitted with each partial payment request.
G. AS.BUILT DRAWNGS
Failure to provide acceptable up-to-date as-built drawings as required herein is considered a material breach of the Contract and shall result in withholding of progress payments and/or final payment at the sole discretion of Owner. Failure to submit the final as-built drawings shall of and by itself, be grounds for assessment of liquidated damages not withstanding any other contractual action which may be taken.
Full compensation for conforming to the above requirement will be considered as included in the prices bid for various contract items of work and no additional compensation will be allowed therefore.
Special Requirements
SR-14
The Contractor shall be responsible for maintaining one up{o-date set of as-built drawings, on the job site, available for review by the Owner representative. These drawings shall be clean, neat, legible and show deviations from the original plan and profile design. This set of as-built drawings shall be submitted for review on the monthly basis and given to Owner upon project completion. The Notice of Completion will not be filed until Owner receives the as-built drawinos.
DETAILED SPECIFICATIONS
THE CITY OF IMPERIAL
STATE OF CALIFORNIA
Manhole and Lift Station Rehabilitation and New Manhole lnstallation
DIVISION I
GENERAL
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Shop Drawings, Product Data and Samples............
Construction Facilities and Temporary Controls
Protection of Existing Facilities
Project Closeout
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SECTION
DIVISION I
TABLE OF CONTENTS
SECTION OI34O
SHOP DRAWINGS, PRODUCT DATA AND SAMPLES
PART I - GENERAL
I.OI SUMMARY
This Section includes the preparation and submission of shop drawings, product data, and samples as specified herein and in the various sections of these specifications. The requirements specified herein are in addition to requirements for shop drawings. product data. samples. materials lists. substitutions of materials, or other submittals specified elsewhere in these specifications. The Conditions ofthe Contract and the other sections of Division I apply to this section as fully as if repeated herein. (Refer to "Special Provisions").
I.O2 GENERAL SUBMITTAL PROCEDURES
SCHEDULING: Extension of Contract time will not be granted because of the Contractor's failure to make timely submittals. Do not purchase materials or equipment or begin construction activities covered by the required submittals until submittals have been reviewed. approved, and returned.
TRANSMITTAL: Accompany each submittal with a dated. signed and sequence numbered transmittal on tbrms prescribed by the Cit)'. Include information required by this form including project identification. name and address of Contractor and oi subcontractor or supplier, a list of items included in the submittal. and identification of drawing numbers, specification section and paragraph numbers to which the submittal pertains. and space for Contractor's and Engineer's review and approval stamP.
I.03 SHOP DRAWINGS AND PRODUCT DATA
SHOP DRAWINGS: The term "shop drawings" as used herein includes fabrication and installation. layout and setting drawings: wiring and control diagrams; and other drawings.
l. Check and verifu all field measurements and submit for revier'1. with such promptness as to cause no delay in the Work or in that of any other contractor or subcontractor, all shop or setting drawings and schedules required for the construction activities of the various trades.
2. Drawings shall show all information required by the applicable technical section and shall be in sufficient detail as may be required A
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Section 01340 - 1
Shop Drawings, Product Data and Samples
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SETS AND COPIES: Provide for approval a minimum of seven (7) sets of each required submittal.
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Section 01340 - 2
Shop Drawings, Product Data and Samples
to show that fabricated materials, equipment or systems, and the positions thereofconform to the Contract Documents.
Shop drawings shall establish the actual detail of fabricated items, indicate proper relation of adjoining construction, amplift design details of mechanical and electrical equipment in proper relation to physical spaces in the structure. and incorporate minor changes of design or construction to suit actual conditions. Shop drawings shall be drawn to scale and shall be completely dimensioned.
Prepare shop drawings on sheet of same size as contract drawings or on 8-l/2" x ll" three-hole punched vellum-type sheets suitable for both xerox and ozalid reproduction.
Each shop drawing shall have a title block containing the following information:
(a) Name and location ofthe Project.
(b) Name and address ofthe Contractor.
(c) Name and address of the subcontractor,
manufacturer. supplier or distributor as
applicable.
(d) Name and address of City.
(e) Date, scale of drawings and identification
number.
(0 Space for the Contractor's review and
approval stamp.
Submit seven (7) blue or black line prints and one reproducible transparency ofeach shop drawing or email a PDF copy.
6 B PRODUCT DATA: The term "product data" as used herein includes manufacturer's standard drawings, certificates of conformance, substantiating calculations and other data.
l. The data shall include all information required by the applicable technical section and shall be in sufficient detail to show that manufactured materials and equipment conform to the Contract Documents.
2. Catalog Cuts: Clearly mark each copy to indicate the product or model as well as optional sizes. finishes or other features proposed for use. Delete inapplicable data.
I.O4 SAMPLE
Fumish for review samples of the various materials, together with the finish thereon, as specified for and intended to be used on or in the Work. Submit samples to the Engineer for review before purchasing, fabricating, applying, or installing such materials and finishes.
Submit samples. other than field samples. in duplicate. A cover letter shall accompany the sample and shall list all items being transmitted. designating their particular usage and O \2018r l8-021?\Specrncatons,D,v I docx Division I
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Shop Drawings, Product Dala and Samples
location in the Work and shall be identified as to manufacturer, trade name, style, model.
One approved sample will be retumed to the Contractor.
Approval of a sample shall not be taken in itself to change or modifr any contract requirement. Materials, finishes, and workmanship in the completed building shall be equal in every respect to that ofthe approved sample.
I.O5 ENGINEER'S ACTION
The Engineer will review the submittals with reasonable promptness, founeen (14) calendar days maximum. and will affix the Engineer's initials or signature as follows:
I . Submittals stamped "NO EXCEPTION TAKEN" require no further action, and fabrication or construction may proceed. The Engineer will forward to the Contractor two (2) stamped copies of shop drawings, brochures, schedules, materials lists. and other product data, except where required otherwise for the Engineer's review' approval and distribution to the Contractor.
2. Submittals stamped "MAKE CORRECTIONS NOTED" or
"APPROVED AS NOTED" require no further action. and
fabrication or construction may proceed contingent upon all corrections being made as noted. Quantities retumed will be as specified in paragraph I .05.A.1 .
3. Submittals stamped "REIECTED" or "REVISE AND RESUBMIT" require the Contractor to resubmit them with reasonable promptness, and no fabrication or construction may begin. The Engineer will return to the Contractor two (2) marked copies of shop drawings. brochures, schedules, materials lists, and other product data (all stamped).
RESUBMIfiALS: If first or subsequent submittal is stamped "REJECTED" oT "REVISE AND RESUBMIT", corrective action shall be taken and resubmittal procedure shall be the same as for first submittal.
Upon resubmitting, the Contractor shall direct specific attention in writing to revisions other than those corrections requested by the Engineer on the retumed, original submittal or shop drawings.
The Engineer will check and take action on such drawings and schedules only for conformance with the design concept of the Work and compliance with information given in the Contract Documents. When so directed by the Engineer or the City, the Contractor shall make corrections required.
The Engineer's and City's review ofshop drawings will be general only and shall not relieve the Contractor from responsibility for errors ofany sort. for deviations from Drawings or Specifications, or for conflict with the construction activities of others that may result from such deviations.
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Shop Drawings, Product Data and Samples
Engineer's and City's review of a separate item does not indicate a review of an assembl) in which the item functions.
I.06 CONTRACTOR'SAC'IION
DISTRIBUTION COPIES: The Contractor shall be responsible for obtaining required prints and for distribution to subcontractors. Distribution copies shall be made from the transparency bearing the Engineer's stamp.
The Contractor shall check the drawings of his suppliers and subcontractors as well as his own drawings before submitting them. In particular. the Contractor shall ascertain that the drawings meet all requirements of the Contract Drawings and Specifications and conform to the structural and space conditions. [f such shop drawings show variations from Contract Documents, whether because of standard shop practice or other reasons. the Contractor shall clearly describe such variations including other changes required to correlate the construction in his letter of transmittal.
Each submittal by the Contractor shall have the following Certification Statement, signed by the Contractor:
"Certification Statemenr: By this submittal, I hereby represent that I have determined and verified all field measurements. field construction criteria. materials. dimensions, catalog numbers and similar data and I have checked and coordinated each item with other applicable submittals and other requirements of the contract documents."
D
By submitting the submittals, the Contractor represents that the material, equipment. and other work shown thereon conforms to the contract documents, except for the deviations set forth in the Ietter of transmittal.
END OF SECTION OI34O
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Submittals shall be complete in all respects. If the subminals show any deviations from the requirements of the contract documents because of standard shop practices or other reasons. the deviations and the reasons therefor shall be set forth in the letter of transmittal.
Division I
Section 01510 - I
Construction Facilities and Temporary Controls
SECTION OI5IO
CONSTRUCTION FACILITIES AND TEMPORARY CONTROLS
PART I . CENERAL
I.O I DESCRIPTION
This Section includes the requirements for temporary facilities for the project work.
Conractor shall provide the temporary facilities for the entire duration of the project work at no additional cost to the CiW.
I.O2 FIRST AID AND PROTECTIVE FACILITIES
First aid facilities and supplies shall be kept on the jobsite. Instructions in first aid shall be given, and Contractor shall provide emergency first aid treatment and supplies fbr his employees sufficient to comply with all legal requirements.
I.O3 FACILITIES FOR EMPLOYEES
Contractor shall, at his own expense, provide all labor, materials' equipment. and facilities which may be required to carry out effectively the provisions of these specifications.
t.04 PowER
Provide all necessary power required lor operations under the contract. The Contractor shall provide and maintain in good order such modern power equipment and installation as shall be adequate. in the opinion of the City. to perform in a safe and satisfactory manner the work required by the Contract.
I.O5 SANITATION
All pans ofthe work shall be maintained in a neat. clean, sanitary condition. Fixed and portable toilets, which are made inaccessibte to flies. shall be provided wherever needed for use of employees, and their use shall be strictly enforced. All waste and refuse from sanitary facilities provided by the Contractor or from any source related to Contractor's operations shall be disposed of in a sanitary manner, satisfactory to the City' and in accordance with the laws and regulations pertaining thereto. Contractor shall rigorously prohibit and prevent committing of nuisance within the work site area or upon the CiE"'s right-of-way or adjacent to private property. Contractor shall fumish all facilities and means for proper sanitation ofthe work. and shall protect and safe harmless the City, its oflicers and employees from any liability resulting from improper or insuf'ficient sanitation.
I.06 PROJECT CLEANUP
CLEANUP REQUIREMENTS:
l. Maintain project site(s) in a neat and clean condition at all times.
2. Abate dust nuisance by cleaning, sweeping and sprinkling with water; and other means as necessary.
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Section 0l5l0 - 2
Construction Facilities and Temporary Controls
Prevent spillage on haul routes.
Immediately remove excess excavated material from pipe trench except for sufficient backtlll material.
Remove forms and lumber from site immediately after stripping.
Do not discharge smoke. dust or other air contaminants into the atmosphere in such quantity as will violate the regulations ofany legally constituted authority.
COMPLIANCE: Failure of the Contracror to comply with the City's cleanup orders may result in an order to suspend work until the condition is corrected. No additional compensation will be allowed as a result of such suspension.
FNAL CLEANUP: Upon completion of work and before the final estimate is submitted. the Contractor shall, at his own expense and cost, sarisfactorily dispose ofor remove from the vicinity ofthe work all plants, buildings, rubbish, unused materials, concrete forms, and orher equipment and materials belonging to him or used under his direction during the construction, and in the event of his failure to do so. the same may be removed and disposed of by the City at the Contractor's expense.
I.O7 TRAFFIC CONTROL
CONTROL EQUIPMENT AND DEVICES: Provide traflic warning
signs, barricades. flagmen, and other control devices as required to maintain rwo-way traffic, over roadways in project work area.
AGENCY REQUIREMENTS: Invesrigate and adhere to traffic control and equipment of various agencies having jurisdiction over the right-ofway in the work area.
COMPLIANCE: Costs for compliance with all traffic control provisions shall be considered as included in the bid unit price for various items. and no other compensation shall be made therelor.
I.O8 ACCESSTOADJACENTPROPERTIES
PROPERTY ACCESS REQUIREMENTS:
l. Provide access to the properties in the work area at all times during construction.
2. Notifu City in advance of any necessary closure to adjacent property and provide 24 hours norice to that affecred properties.
3. Provide temporary structures as required for reasonable access to the adjacent propenies.
4. At least one (l) lane on cross streers shall be available at all times for use olvehicles and emergency equipment.
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Construction Facilities and Temporary Controls
COMPLIANCE: Costs for compliance with all traffic control provisions shall be considered as included in the bid unit price for various items. and no other compensation shall be made therefor.
END OF SECTION O I5 IO
G \20 r 8\ I 8-02 I ispec, frcarons\Dlv I dcx Division I Section 01530 - I
Protection of Existing Facilities
SECTION OI53O
PROTECTION OF EXISTING FACILITIES
PART I -GENERAL
I,OI GENERAL:
I .02 RIGHTS.OF-WAY:
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The Contractor shall protect all existing utilities, piping and improvements not designated for removal and shall restore damaged or temporarily relocated utilities, piping and improvements to a condition equal to or better than they were prior to such damage or temporary relocation.
The Contractor shall verifu the exact locations and depths of all underground piping and utilities shown and not shown and shall make exploratory excavations of all piping and utilities that may interfere with the Work. It shall be the Contractor's responsibility to ascertain the actual location ofall existing utilities, piping and other improvements rhat will be encountered in its construction operations and to see that such utilities or other improvements are adequately protected from damage due to such operations.
Maintaining in Service: AII pipelines, electrical. power. telephone. communication cables, gas and water mains shall remain continuously in service during all the operations under the Contract. unless other arrangements satisfactory to the Engineer are made with the Owner.
Where the proper completion of the Work requires the temporary or permanent removal and/or relocation of an existing utility or other improvement the Contractor, after necessary scheduling and approval. shall remove and, without unnecessary delay. temporarily replace or relocate such utility or improvement in a manner satisfactory to the Engineer and the owner of the facility. In all cases of such temporary removal or relocation, the Work shall be accomplished by the Contractor in a manner that will restore or replace the utility or improvement to a new condition meeting Ihe specification requirements.
All repairs to a damaged utility or improvement are subject to inspection and approval by an authorized representative of the improvement owner before being concealed by backfill or other work.
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The Contractor shall not do any work or enter upon the rights-of-way of any oil, gas, sewer or water pipeline; any telephone or electric transmission line; any fence; or any other structure, until notified by the Engineer that the Owner has secured authority to do so. After authority C 20lE\16-0:lTsp.otcar'ons t)lr I dft\ Division I
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has been obtained, the Contractor shall give the governing utility proper advanced notice of its intention to begin work.
I.O3 RESTORATION OF PAVEMENT AND SIDEWALKS:
All paved areas and sidewalks not designated for replacement, cut or damaged during construction shall be replaced with similar materials and of equal thickness to match the existing adjacent undisturbed areas unless otherwise noted. All sidewalks and pavements which are subject to partial removal shall be neatly saw cut in straight lines.
I.04 I.JNDERGROUND UTILITIES NOT SHOWN OR INDICATED
If the Contractor damages existing utilities, piping or improvements that are not shown or the location of which was not made known to the Contractor prior to excavation and the damage was not due to failure of the Contractor to exercise reasonable care the Contractor shall immediately notiry the Engineer. Ifdirected by the Engineer repairs shall be made by the Contractor under the provisions for changes and extra work contained in Articles 13. 14. and l5oftheGeneral Conditions.
I.O5 NOTIFICATION BY THE CONTRACTOR:
Prior to any excavation in the viciniqv of any existing underground facilities, including water. sewer. storm drain, gas, petroleum products' or other pipelines; all buried electric power. communications or telecommunication cables; all traffic signal and street lighting facilities:
and all roadway and state highway rights-of-way, the Contractor shall notiry the respective authorities representing the owners or agencies responsible for such facilities not less than three (3) working days prior to excavation so that a representative can be present during such work if they are required to do so.
END OF SECTION OI53O
G r20,8\l8.0llnspecificanons\Div I dci Division I
Secrion 01530 - 2
Protection of Existing Facilities
Sefiion 01700 - I
Project Closeout
SECTION OITOO
PROJECT CLOSEOUT
PART I - GENERAL
I .O I DESCRIPTION
This section details requirements and provisions to be performed by the Contractor and for the Ciry prior to final acceptance of the project and closing our the Contracr. The requirements specified in the Conditions of the Contract, Special Provisions, and the Detailed Technical Specifications apply to this section as fully as ifrepeated herein.
I.O2 FIELD TESTING AND OPERATIONAL DEMONSTRATION
PROCEDURES: Submit schedule and complete procedures and informational data to Engineer for review and approval in accordance with Special Provisions and Section 15064.
FIELD TESTING: Conduct field stan-up, resting and operarional demonstration in accordance with Special Provisions and Section 15064.
SUBMITTALS: Provide all final submittals to Engineer for review and approval in accordance with all applicable sections of Divisions l5 and 16.
I.O3 REQUIREMENT PREPATORY TO FINAL INSPECTION
TEMPORARY FACILITIES: Remove all temporary facilities from site.
CLEANING: Clean the entire project site(s) of all debris, Contracror materials, etc. as approved by Inspector. The pump building shall also be thoroughly cleaned prior to the Final Inspection.
PUNCH LIST: Complete all preliminary punch list items as approved by Inspector.
TESTING: Complete all field testing requirements per the Specificarions.
RECORD DRAWINGS: Submit record (as-built) drawings ro City Drawings shall be complete and signed by the Contractor.
OPERATING AND MAINTENANCE MANUAL: Submit preliminary
copies to Engineer for review and approval in accordance with the Special Requirements. Final. approved submittals will be required in advance of the filing of the "Notice of Completion."
TOOLS, KEYS AND MISCELLANEOUS EQUIPMENT: Deliver all
tools which are a perrnanent part of the equipment installation in the work B
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Section 01700 - 2
Project Closeout
to the City. Also deliver touch-up paint, spare parts, all keys (properly identified), etc.
I. FINAL QUANTITIES: See Paragraph 1.06 herein
I.04 SPECIAL SYSTEM OPERATING AND MAINTENANCE INSTRUCTIONS A OPERATING INSTRUCTIONS: Separate from the required Operating and Maintenance Manual. submit typewritten instructions covering operation of the entire system as installed (not duplicating manufacturer's instruction for operating components). Include schematic flow and control diagrams as appropriate and show and list system valves, control elements, and equipment components using identification symbols and numbers.
Show proper settings for valves, controls and switches.
MAINTENANCE INSTRUCTIONS: Separate from the Operating and Maintenance Manual. and not duplicating manufacturer's detailed instructions, submit typewritten instructions covering routine maintenance of the system. List each item of equipment requiring inspection' lubrication. or service and briefly describe such maintenance, including types of lubricants and frequency of service. Give name. address and phone number of nearest firm authorized and/or qualified to service equipment or provide parts.
WALL MOUNTED DATA: Frame one set of the approved typewritten instructions and diagrams described under paragraph 1.04 A and 1.04 B above, covered with glass and mounted in locations as directed by City.
I.O5 MANUFACTURERS'WARRANTIES
Deliver all manufacturers' warranties required by the Contract Documenls' with City named as the beneficiary. In addition. for all equipment and machinery, or components thereof. bearing a manufacturers' warranty that extends for a longer time period than the Contractor's warranfy. secure and deliver the manufacturers' warranties in the sam€ manner.
Written warranties. except manufacturers' standard printed warranties. shall be on the Contractor's, subcontractor's, material suppliers'. or manufacturer's own letterhead' or a form approved by City. Submit all warranties in duplicate. All warranties shall be coltected and assembled into a bound booklet form. and delivered to the City for final review and approval.
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PERMITS: Obtain final approvals from all agencies issuing permits and/or having involvement in the project such as Fire Department. Flood Control District. various City Departments, etc.
Section 01700 - 3
Project Closeout
I.06 FINAL QUANTITIES AND PAY ESTIMATE
The Contractor's superintendent shall coordinate with the project inspector, prior to the final inspection, for purposes of revie*ing and resolving all final as-built quantities for payment purposes. Once the tabulation of final quantities is complered and approved by the Inspector. the final pay esrimate may be submitted. Final quantities are subject to approval of the City. Payment of retention will not be approved until after final inspection and acceptance of project. Refer to General Provisions for additional information.
1,07 FINAL INSPECTION
If the Work has been completed in accordance with the Contract Documents. and no further corrective measures are required, the Ciry will accept the Work, finalize the payment processing, obtain the "Release" from the Contractor, and file for the Notice of Completion.
If the Work has not been completed in accordance with the Contract Documents, and several corrective measures are still required, the City will not accept the Work or file for the Notice of Completion. Instead, a final punch list shall be prepared by the City, based on the information gathered from the final inspection. The Contractor will be required to complete or correct the items listed on this punch list to the satisfaction ofthe Inspector. and then call for another final inspection. following the procedure outlined above.
Upon acceptance of the Work by the City. Contractor shall submit his request for acceptance and final paymenr. Final payment will not be made by the Ciry, however. until 35 days after filing for the Notice of Completion.
END OF SECTION O ITOO
G r2018\ l8-Ol I nsp.cifications\Drv I dtrx Division I
DIVISION 2
SITE WORK
C U0l8\ l8{21nspecrticarrons\Div 2 docx Division 2
S ECTIO\
02140
02200
02221
02250
02415
025 l0
02535
02620
02622
Groundwater Dewatering..................
Earthwork and Site Preparation
Trenching, Backfi lling and Compacting...............
Sewer Bypass System
Sheeting. Wailing and Shoring
Asphalt Concrete Paving.................
Traffic Stripes. Pavement Markings and Pavement Markers ..
Existing Underground Utilities
Polyvinyl Chloride (PVC) Pressure Pipe
PAGE
02140-l
02200-t
02221-l
02250- I
02415-l
025I0-r
02535- l
02620-l
02622-l
G U0l8\ 18421lspecrfications\Drv 2 docx Division 2
DIVISION 2
TABLE OF CONTENTS
Section 02140 - I
Dewatering
SE,CTION 02I{O
DEWATERING
PART I - GENERAL
I.O I APPLICATION
A Control of subsurface groundwater shall conform to this section. Control of site-surface water is specified in Section 02200.
I.O2 SUBMITTALS
ln the event groundwater is encountered. the Contractor shall submit to the Engineer. for approval, a complete and detailed plan and description of the dewatering system he proposes to use for dewatering.
All decisions in regard to acceptability of groundwater exclusion methods will be made by the Engineer and all such decisions shall be final.
I.O3 QUALITY ASSURANCE
The discharge of water or drilling waste products shall be in accordance with the requirements of the federal. state, or local agencies having jurisdiction. The Contractor shall be responsible for determining the responsible authority and complying with its regulations.
PART 2. PRODUCTS (NOT USED)
PART 3 - EXECUTION
3.OI GENERAL
The Contractor shall maintain safe and stable excavations. Further. the Contractor shall be prepared to handle perched water conditions in localized areas.
The dewatering system shall be effective to such depth that' where excavations for foundations extend within 5 feet of the water table. the water table shall be lowered in advance of excavation and maintained at least 5 feet below the bottom ofexcavation or top ofbackfill at all times.
Except for shutdowns for maintenance of dewatering equipment. no interruption in the approved dewatering procedures will be permitted B
C
G \2018\ l8-021nspecrfica!rcns\Dv 2 docx Division 2
B.
D
E
A
Section 02140 - 2
Dewatering
during excavation and construction operations. Full time surveillance (24 hours a day) and maintenance of the equipment shall be provided by the Contractor to avoid breakdowns.
The system installed to lower the groundwater shall be capable of providing continuous and reliable draw throughout the construction period. The Contractor shall be responsible for the design consrruction and maintenance of the dewatering system.
The Contractor shall keep a daily log of the flow rate. The information shall be transmitted to Metropolitan on a monthly basis. i.02 EAR'iltWORK
B
C
During placement and compaction of fill materials. the lowered level of groundwater shall be maintained at every point until the compacted material is l0feet higher than normal static groundwater level or until final grade is reached.
Dewatering shall not affect the bearing capacity of the subgrade soils at the proposed bottom of excavation.
Flotation of pipelines and structures shall be prevented by mainraining a positive and continuous removal of water until the construction is completed to the design grades.
END OF SECTION 02I40
G \201 8\ I E{21nspccr ficatrcns\Drv 2 docx Division 2
Scction 02200 - I
Eanhwork and Site Prepi[ation
SECTION O22OO
EARTHWORK AND SITE PREPARATION
PART I - CENERAL
I .O I DESCRIPTION
Requirements specified in Conditions of the Contract and Division I form a part of this Section. Provide labor, equipment, tools. materials, and services needed to accomplish all site preparation, earthwork and incidental appunenant work as described herein or shown on the Drawings.
Work Included in This Section: Principal items are -
Site preparation. clearing and grubbing.
Preparation of fill areas.
Excavation and controlled fill construction.
Structural excavation. and backfi lls.
Pavement subgrade.
Disposal of surplus and/or unsuitable materials.
Dust control and drainage control.
Clean-up.
I.O2 RELATED SECTIONS
A. TRENCHING, BACKFILLING AND COMPACTION: Section 02221 B. SHEETING, WALING, SHORING: Section 02415
I.O3 DEFINITIONS
SITE: The property owned by, or under the jurisdiction of the Owner within the boundaries shown on the Drawings. easements and/or rights-ofway roads, drainage facilities, and pipelines, and the Contractor's working and storage areas adjacent to the facilities.
CONTROLLED FILL: Compacted suitable fill material in all areas of the site requiring fitling to grade as shown on the Drawings.
CONTROL DENSITY FILL: One-sack cement slurry used to backfill areas where pipeline undercrossing make it difficult to mechanically compact fill materials.
I
2 4
5 6
7 8
B
C
G \2018\18-02 I nSpecrlicalrons\Drv 2 docx Division 2
Section 02200 - 2
Earthwork and Site Preparation
STRUCTURAL FILL: Compacted suitable fill material which will support a structure or some part of a structure.
STRUCTURAL BACKFILL: Compacted suitable material placed between the wall of a structure and construction excavation slope up to finished grade.
SUITABLE MATERIAL: As specified herein shall be any material imported or excavated from the cut areas that is. in the opinion of the Owner. suitable fbr use in constructing fills.
WASTE EXCAVATION: Material from project excavations which is not suitable for use in backfill or compacted fills or is in excess of that required to be used for backfill or to construct fills.
I.O4 SITEINVESTIGATION
SOIL INVESTICATION REPORT:
not prepared for this project.
A specific geotechnical report was
CONTRACTOR'S RESPONSIBILITY: The Contractor shall carefully examine the site and make all inspections necessary in order to determine the full extent of the work required to make the completed Work conform to the Drawings and Specifications. The Contractor shall satisfy himself as to the nature and location of the Work, conditions, the conformation and conditions of the exisring ground surface. and the character of equipment and facilities needed prior to and during prosecution of the Work. The Contractor shall satis! himself as to rhe character. quality. and quantity of surface and subsurface materials or obstacles to be encountered. Any inaccuracies or discrepancies between the actual field conditions and the Drawings, or between the Drawings and Specifications must be brought to the Owner's attention in order to clarify the exact nature of the Work to be performed.
EXISTING ELEVATIONS: All existing elevations shown on the plans are approximate only. The Contractor shall recognize and acknowledge the condition that the bid lump sum price shall include all earthwork activities irrespective of the possible localized difference in contour elevations and actual ground: and that there will be no additional compensation from the Owner for earthwork changes, engineering. or field staking in this regard.
D
tl
[]
(;
A
I]
C
C:\2018\l 8-021nspccrl'ica1,ons\Dv I docy Division 2
Section 02200 - 3
Eanhwork and Site Preparation
I.06 ENVIRONMENTAL SAFEGUARDS AND REGULATIONS
I.O7 QUALITY ASSURANCE
BY CONTRACTOR: Exercise due care to assure procurement, storage and placement of materials from site or offsite sources which shall comply with the requirements, Specifications and standards set out herein. The Contractor may have, at his discretion, such tests and inspections as he may desire performed by qualified personnel or independent testing services, for his guidance and control ofthe Work.
BY OWNER: The Owner through its project representative(s), will be the onsite arbiter and judge of the acceptability of the Work done. based on such observations and tests he may require or perform.
The Owner may provide inspection and testing by its own representatives or by independent testing services, engaged and paid for by the Owner. In this regard, a Soils Engineer may be engaged by the Owner, who shall act as the direct representative of the Owner in soils work. to perform inspection of the removal and replacement of unsuitable materials, all excavations, and the placement and compaction of all fills and backfills within the limits of earthwork on this Proiect. Costs for all such inspections and tests will be paid by the Owner, except Contractor shall bear the cost ofretest and reinspection olreworked faulty work.
C. APPLICABLE CRITERIA, TESTS AND STANDARDS
For Site Earthwork - Rough graded surface ready to receive top soil, sod, or seed, crushed rock, or aggregate base shall be graded to * or - 0.I feet ofthe Plan elevation. except where meeting curbs. walks, or building entrances, grade to + or - 0.05 feet of Plan.
However, the acceptance of such irregularities shall not be construed to reduce the thickness of topsoil, sod or pavement.
B
C U0l 8\ 1 8-021 7\Sp€c ificarrons\Drv 2 docx Division 2 I.O5 SAFETY
The Contractor shall familiarize himself with. and shall at all times conform to. the regulations of the "OSHA General Industry Occupational Safety and Health Standards". and "OSHA Safety and Health Regulations for Construction Safety Orders" and "Trench Construction Safety Orders" of the State of Califomia, Department of Industrial Relations, Division ofOccupational Health and Safety." A copy ofthese documents shall be kept on the job site.
The Contractor shall comply with regulations in force at all times to prevent pollution of air and water.
I
2 Section 02200 - 4
Earthwork and Site Preparation
Permanent surface water courses shall be constructed to average Plan grades and shall drain completely throughout their length.
Finish surfaces shall be + or - 0.05 feet of the Plan elevation. and all areas shall be finished so as to drain readily.
For Eanhwork for Structures - The Owner will provide the services of a qualified Soils Engineer to make tests of prepared subgrade and compacted fill. Testing will be at the discretion ofthe Soils Engineer. The Contractor shall give the Soils Engineer twentyfour (24) hours notice of the schedule commencement or subgrade preparation.
For Waste - Rubbish, debris, junk. material deemed unsuitable by the Owner from tests or visual inspection, and all material delivered to fill or embankment. which cannot be satisfactorily compacted. shall be removed from the project site and wasted in an area, provided by Contractor, that is acceptable to local authorities.
Disposal of such materials shall be in accordance with all applicable laws, regulations, permits, and approvals from Owner of property upon which the material will be disposed.
For Clean-Up - Removal of all rubbish, debris. junk. temporary materials, and undesirable plants within the construction limits. restoration of staging areas and obliteration of temporary roads and stockpiles. and removal of trees damaged by the Contractor's operations shall be performed by the Contractor, to the satisfaction ofthe Owner as determined by visual inspection and is a condition for acceptance and final payment.
5. Standards for Soil Classification, Properties and Tests I . Classification - ASTM D-2487.
2. Physical Properties - ASTM D854. D-2216
3. Compaction - Modified Proctor ASTM D1557-91
(b) Backfill for Trench:
I . Classification - ASTM D2487
2. Compaction - Modified Proctor ASTM D1557-91
3. Field Density Test - ASTM 1556-82
D2937-83, D2922-81 (As approved by
Owner)
J
4 C \2018\ I 8-021nspecr ficanons\ Drv 2 docx Division 2 (a) Eanhwork and Embankment (excludins roads):
Section 02200 - 5
Earthwork and Site Preparation
(c) Structural Fill and Backfill:
I . Classification - ASTM D2487
2. Auerberg Limits - Plasticity Index and - Liquid Limit ASTM D43I8
3. Compaction - Modified Proctor ASTM D1557-91
4. Physical Properties - ASTM D854. D2216
5. Field Density Test - ASTM D 1556-82
D2937-83, D2922-81 (As approved by Owner)
(d) Controlled Fills:
l. Classification - ASTM D2487
2. Physical properties - ASTM D854, D2216
3. Compaction - Modified Proctor ASTM DI557-91
4. CBR - ASTM DI883 (R-Value - ASTM 2844)
5. Field Density Test - ASTM D1556-82
D2937-83, D2922-81 (As approved by Owner)
I . Classification - ASTM D2487
2. Physical properties - ASTM D854, D2216
3. Compaction - Modified Proctor ASTM D1557-91
4. CBR-ASTMD.I883
5. Field Density Test - ASTM D1556-82
D2937 -83. D2922-81 (As approved by Owner)
(0 Borro*:
I . Classification - ASTM D2487.
2. Other propenies - as determined by requirements at point of use.
I.O8 COMPACTION
The maximum dry density, optimum moisture content and field density ofeach soil type used in the controlled compacted fill shall be determined as stated above.
I.O9 INSPECTION
Observation and compaction tests shall be made by the Owner during the filling and compacting operations.
During the grading operation, continuous inspection may be made to assure that grading is performed in accordance with specified requirements. Should testing indicate G:\20 I 8\ I 84 2 I nspecr ticanons\Drv 2 docx Division 2 (e) Road Embankment:
Section 02200 - 6
Earthwork and Site Preparation
unsatisf'actory compaction. additional compactive effort shall be applied with the adjustment of moisture content until satisfactory compaction is obtained.
I.IO GUARANTEE
Work done under this Section shall in all respects come under the terms ofthe guarantee stated in the Conditions of the Contract.
PARI- 2 - PRODI]CTS
2.OI MATERIALS
A CONTROLLED FILL MATERIAL: Materials for controlled fill shall consist ofany material imported or excavated lrom the cut areas that. in the opinion of the Owner. is suit-able for use in consrrucring fills. The material shall contain no rocks or hard lumps greater than l2 inches in size and shall contain at least 40 percent of material smaller than 3/4 inch in size. Materials greater than 6 inches in size shall be placed by the Contractor in windrows on a clean. over-excavated or unyielding compacted till or firm natural ground surface. Select native or imported granular soil (sand equivalent greater than 30) shall be placed and thoroughly flooded over and around all windrowed rock. such rhat voids are filled. Windrows of oversize material should be staggered so that successive strata of over-sized material are not in the same vertical plane.
No nesting or rocks shall be permitted. No material of a perishable, spongy, or otherwise ofan improper nature shall be used in filling.
Material placed within 24 inches of rough grade shall be select material that contains no rocks or hard lumps greater than 6 inches in size and that swells less than 3 percent when compacted as hereinafter specified for compacted fill and when subjected to an axial pressure of 160 psf.
Representative samples of material to be used for fill shall be tested in the laboratory by the Soil Engineer in order to determine the maximum density, optimum moisture content and classification of the soil. In addition, the Soil Engineer shall determine the approximate bearing value of a recompacted saturated sample by direct shear tests or other tests applicable to the particular soil.
During grading operations, soil types other than those analyzed in the report ofthe soil investigation may be encountered by the Contractor. The Soil Engineer shall be consulted to derermine the suitabilitv ofthese soils.
G \20 I 8\ I 8-021 nspec rlicarrons\Dv 2 doc\ Division 2 u
Section 02200 - 7
Earthwork and Site Preparation
The crushed aggregate base shall be uniformly graded and shall conform to State of California Standard Specifications Aggregate Base Class 2 with the following gradations:
AGGREGATE GRADING REQUIREMENTS
Percentage Passing
(Califomia Test 202)
3/4 Maximum
t'
3/4"
No. 4
No.30
No. 200
Tests
Resistance (R-value) Irl
Sand Equivalent
Durability Index
QUALITY REQUIREMENTS
45-90
20-50
6-29
0-t2
50-85
25-45
l0-25
2-9
Individual Test
Results
t00
87- l 00
30-60
5-35
0- l2
Individual
Movins
Averaqe
r00
90- r 00
35-55
l0-30
2-9
Moving
Averaqe
3l Min.
Test Ir
78 Min.
28 Min.
35 Min.
tr1
G \2018\ I E-0 2 I nspecr ficat ronsu)rv 2 doc\ Division 2 STRUCTURAL FILL MATERIAL: Materials shall consist of crushed aggregate base, either imponed or manufactured from excavated onsite rocky material.
Califomia
Test
301
217
229
R-value testing may be waived if:
( I ) a previous sample ofthe aggregate being supplied met the R-value requirements and had a Sand Equivalent value of33 or mo.e;
(2) the Sand Equivalent value of the sample being t€sted is not more than 5 points lower than the Sand Equivalent value of the sample that met the R'value requirements: and
(3) the aggregate has not been treated with lime, cement, or other ch€mical material All rock materials shall be clean, hard, sound, durable. uniform in quality. free of any detrimental quantity of soft, friable, thin, elongated or laminated pieces, disintegrated material, organic matter, oil. alkali or deleterious substance.
C. STRUCTURAL BACKFILL MATERIAL: Materials for structural backfill shall be as material used for controlled fill, 2.1.1, except the material shall contain no rocks or hard lumps greater than l2 inches in s ize.
I)
Section 02200 - 8
Earthwork and Site Preparation
Only non-expansive materials shall be used.
GRANULAR MATERIAL: Materials for granular material shall consist of a coarse mortar and conforming to ASTM C 144.
SPECIAL CRUSHED ROCK BEDDING AND STRUCTURE
FOUNDATION: When groundwater is encountered in the excavation and/or where indicated on the Contract Drawings. the material in the bonom ofthe trench or excavation shall be removed to a depth directed by the Owner and replaced with 314 inch maximum crushed rock bedding.
The crushed rock bedding shall be installed and compacted per these specifications. The 3/4 inch maximum crushed rock material shall be approved by the Owner before use.
Crushed rock shall be the product ofcrushing rock or gravel. Fifty percent of the particles by weight retained on a 3/8-inch sieve shall have their entire surface area composed of faces resulting from fracture due to mechanical crushing. Not over 5% shall be panicles that show no faces resulting from crushing. Less than l0% ofthe particles that pass the 3/8- inch sieve and are retained on the No. 4 sieve shall be waterworn particles.
Gravel shall not be added to crushed rock. Crushed rock (3/4") shall have the following gradation:
Sieve Sizes
3/4-inch
Max. Crushed Rock
7o Passing
E
l'
3/4"
t/2"
318"
No. 4
No. 8
100
90- r00
30-60
0-20
0-5
For specified 3" crushed rock. Contractor shall submit gradation to Owner for review and approval.
Division 2
Special Crushed rock Bedding or foundation marerial, where ordered by the Owner. shall be paid as indicated in the Bid Schedule and set forth in the Special Requirements.
G \2U l8\18-0217\Spccrfical,ons\Drv : doc\
Section 02200 - I
Earthwork and Site Preparation
PART 3 - EXECUTION
3.OI GENERAL
The Work performed under this Specification shall be constructed to the lines, grades. elevations. slopes and cross sections indicated on the Drawings, specified herein, and/or directed by the Owner. Slopes, graded surfaces. and drainage features shall present a neat uniform appearance upon completion of the Work.
It shall be the Contractor's responsibility (l) to maintain adequate safety measures and working conditionsl and (2) to take all measures necessary during the performance ofthe Work to protect the entire project area and adjacent properties which would be affected by this Work from storm damage, flood hazard. caving of trenches and embankments' and sloughing of material. until final acceptance by the Owner. It shall be the Contractor's responsibility to maintain completed areas until the entire project area is in satisfactory compliance with the job specification.
Utility lines and structures indicated on the Drawings which are to remain in service shall be protected by the Contractor from any damage as a result of his operations. Where utility lines or structures not shown on the Drawings are encountered, the Contractor shall reporl them to the Owner before proceeding with the Work. The Contractor shall bear the cost of repair or replacement of any utility lines or structures which are broken or damaged by his operations.
3.02 REMOVALS. CLEARING AND GRUBBTNG
CLEARING: Clearing consists of the complete removal oi objectionable materials and obstructions above and below the ground surface including tree stumps, brush. grass. vegetative matter and other objectionable materials within the project limits. All brush and organic material shall be removed before placing any earth fills. It shall be the Contractor's responsibility to save and protect all trees that lie outside the construction area. No trees shall be removed unless approved by the Owner.
GRUBBING: Grubbing consists of the complete removal of stumps. including tap roots or lateral roots l-l/2 inches or more in diameter' and the removal ofbrush. grass or weeds to depths below the natural ground as specified herein. Stumps shall be grubbed to a depth of 3 feet and grass or weeds shall be grubbed to a depth of 6 inches below the natural ground surface, or to the depths as determined in the field by the Soil Engineer at the time of construction.
PROTECTION: Existing items not designated to be demolished or removed shall be protected from damage. Any such item damaged by the Contractor shall be restored or replaced immediately at the Contractor's expense.
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G \20 I 8\ I 842 I nsp€c r fical rons\Drv 2 docx Division 2 B.
A.
DEBRIS AND WASTE MATERIAL: All debris and waste material resulting from demolition, clearing, and grubbing shall be removed from the site and disposed of by the Contractor.
3.03 DUST CONTROL
The Contractor shall take all steps possible to prevent and reduce dust arising from the construction activity. He shall have adequate water trucks on the site at all times and water, as necessary. the areas where dust may arise. He shall cooperate fully with the Owner and water immediately when instructed to do so.
3.04 CARE OF DRAINAGE WATER
Contractor shall take care of drainage water from the construction operations, and of storm water and/or wastewater reaching the construction area from any source. so that no damage will be done to the excavation, pipe or structures. The Contractor shall be responsible for any damages to persons or property on or off the construction site due to such drainage water or to the intemrption or diversion ofsuch storm water or wastewater on account of his operations.
Such grading shall be done as may be necessary to prevent surface water from flowing into excavations, and any water accumulating therein shall be removed by pumping or by other reviewed methods.
Protection ofthe site during the construcrion shall be the responsibility ofthe Contractor.
Completion of a portion of the project shall not preclude rhat portion or adjacent areas from the requirements for site protection until such time as the entire project is complete.
3.05 EXCAVATION
GENERAL: The Contractor shall perform all excavation necessary or required as shown on the Drawings. The excavation shall include the removal and disposal of all earth materials of whatever nature encountered, which shall include both rock excavation and common excavation when both are present, and shall include the fumishing. placing. and maintaining of shoring and bracing necessary to safely support the sides of the excavations. The Work shall also include all pumping. ditching and other required measures for the removal or exclusion of water.
EXCAVATION FOR STRUCTURES: Structure excavarion shall include the removal of all materials of whatever nature encountered, including all obstructions of any nature that would interfere with the proper execution and completion of the Work. The removal of such materials shall conform D
G \20 I 8\ I 842 I nsp.€ r lica!,ons\Drv 2 docx Division 2 Section 02200 - l0
Earthwork and Site Preparation
rr.
Section 02200 - ll
Earthwork and Site Preparation
to the lines and grades shown on the Drawings and/or herein specified.
Temporary structure excavations shall at all times conform to the Requirements of the State of Califomia. Division of Occupational Health and Safety, and pertinent requirements contained in referenced Geotechnical Investigation Report and Specification Section 02415.
Sheeting, Waling and Shoring.
Continuous wall and isolated footings shall be underlain by a mtntmum compacted controlled fill thickness equal to 1.5 times the footing width or greater ifl indicated in the referenced Geotechnical Investigation Report.
This zone of over-excavation, scarification and recompaction shall extend a minimum offive feet beyond the footing lines. Exposed surface shall be scarified, and brought to optimum moisture content and compacted to a minimum of 95 percent relative compaction.
Contingent upon locations, all surfaces to receive compacted fill shall be scarified, brought to near optimum moisture content and compacted to required percentage of relative compaction as specified herein.
Rough grade excavations for structures and footings will be inspected by the Owner to verily that the excavations extend into satisfactory soils and are free of loose and disturbed materials.
Foundation for tanks, pump vaults or subsurface chambers shall have structural fill material extending l2 inches, minimum. below the structural base slab to native material. which has been scarified and compacted to 957o relative compaction.
3.06 STRUCTURALBACKFILL
c U0lt\ l8{2l lspec'ficatrcns\Dv 2 doo( Division 2
All surfaces to receive concrete slabs-on-grade shall be underlain by a minimum compacted controlled fill thickness of l8 inches or greater if indicated in the referenced Geotechnical Investigation Report. This shall be accomplished by combination of over-excavation and recompaction to 957o relative compaction.
PLACEMENT OF STRUCTURE BACKFILL: Before beginning backfilling, all foreign material, including water, shall be removed from the space to be backfilled and the area to be backfilled shall be inspected and approved by the Owner. Sloping sides of the excavated space shall be stepped to prevent wedging action ofthe backfill against the structure. No backfill shall be placed around or upon any structure until it is proven that the concrete has attained satisfactory strength in accordance with Section 03300 and that the structure as a whole is adequate to receive backfill.
B
Section 02200 - l2
Earthwork and Site Preparation
The compressive strength shall be determined by tests on representative cylinders cured under conditions similar to those prevailing at the site.
Backfill shall be placed in uniform layers on opposite sides of structures and walls before compaction. The Contractor shall inform the Owner of the sequence of backfilling to be followed around each structure and this sequence shall be reviewed by the Owner before any backfilling is placed.
COMPACTION OF STRUCTURE BACKFILL: Structure backfill shall be placed in horizontal layers of such depths compatible to the type of compaction equipment being used, but in no case shall the lifts exceed eight (8) inches. Each layer shall be evenly spread, the moisture content brought to near optimum conditions and then compacted. The density shall be as follows:
STRUCTURAL FILL COMPACTION
Type of Fill
Structural Fill Material
Structural Backfi ll Material
95 90
Backfill shall be mechanically compacted by equipment of a size and type reviewed by the Owner. Permission to use specified compaction equipment shall not be construed as guaranteeing or implying that the use of such equipment shall not result in damage to adjacent ground, existing improvements, or improvements installed under the Contract.
Flooding. jetting or ponding shall not be permitted for the compaction of any structure backfill.
3.07 CONTROLLED FILL
A GENERAL: Unless otherwise specified, fill material shall be compacted by the Contractor while at a moisture content near the optimum moisture cont€nt and to a density that is not less than 90 percent of the maximum density at optimum moisture.
Slopes shall be 2:l unless otherwise shown on the Plans. No slopes shall be constructed steeper than 2:1. Areas to receive fill shall be prepared as G:\201 8\l 8{21 lspecrfications\Dv 2 docx Division 2
Percent of Maximum
Potentially expansive soils may be used in fills below a depth of24 inches and shall be compacted at moisture content greater than the optimum moisture content for the material.
Densiw of Optimum Moisture
B
Section 02200 - l3
Earthwork and Site Preparation
shown on the Plans and approved in writing by the Owner prior to placement.
PREPARING AREAS TO BE FILLED: All vegetable matter and
objectionable material shall be removed by the Contractor from the surface upon which the fill is to be placed and any loose and porous soils shall be removed or compacted to a depth specified by the Soil EngineerThe surface shall then be plowed or scarified to a minimum depth of 6 inches until the surface is free from uneven features that would tend to prevent uniform compaction by the equipment to be used.
When placing fill in horizontal lifts adjacent to areas sloping steeper than 5:l (horizontal: v€rtical). horizontal keys and vertical benches shall be excavated into the adjacent slope area. Keying and benching shall be sufficient to provide at least 6-foot wide benches and a minimum of 4 feet vertical bench height within the firm natural ground. firm bedrock or engineered compacted fill. No compacted fill shall be placed in an area subsequent to keying and benching until the area has been reviewed by the Soils Engineer. Material generated by the benching operation shall be moved sufllciently away from the bench area to allow for the review of the horizontal bench prior to placement of fill. Typical keying and benching details shall be as shown on the Drawings.
After the foundation for the till has been cleared, plowed or scarified. it shall be disced or bladed by the Contractor until it is uniform and free lrom large clods. brought to the proper moisture content and compacted as specified.
PLACTNG. SPREADING. AND COMPACTING FILL MATERIAL:
The fill material shall be placed by the Contractor in thin layers that when compacted shall not exceed 8 inches. Each layer shall be spread evenly and shall be thoroughly mixed during the spreading to obtain uniformity of material in each layer.
When the moisture content ofthe fill material is below that required by the Soils Engineer, water shall be added by the Contractor until the moisture content is as required for the specified compaction.
When the moisture content of the fill material is above that required by the Soils Engineer, the fill material shall be aerated by the Contractor by blading, mixing, or other satisfactory methods until the moisture content is as required for the specified compaction.
After each layer has been placed. mixed and spread evenly. it shall be thoroughly compacted by the Contractor to the specified density.
C
C \20I8\ I8{2Inspecrticairons\Dv 2 docx Division 2
Section 02200 - l4
Earthwork and Site Preparation
Compaction shall be accomplished by sheepsfoot rollers. vibratory rollers. multiple-wheel pneumatic-tired rollers or other types of acceptable compacting equipment. Equipment shall be of such design that it shall be able to compact th€ fill to the specified density. Compaction shall be continuous over the entire area and the equipment shall make sufficient passes over the material to ensure that the desired density has been obtained.
Compacted fill slopes shall be overbuilt and cut back to grade. exposing the firm, compacted inner core. The slopes shall be overbuilt a minimum of five feet. If the desired compaction is not achieved. the existing slope shall be over-excavated and reconstructed. The amount of overbuilding shall be increased until the desired compaction is achieved on the slope.
The Contractor shall provide thorough mechanical compaction to the outer edge ofthe overbuilt slope surface. There shall be no excessive loose soil on the slopes.
The Contractor shall provide and maintain adequate erosion control facilities during the construction of the fill areas. The erosion control facilities shall be maintained in optimum condition until the permanent drainage system and vegetation is complete. The facilities shall be inspected following significant rainfall. repairs made and excess sediment removed. It shall be the Contractor's responsibility to prevent the discharge ofsediment off-site or to adjacent water courses.
3.08 PAVEMENT SUBGRADE
3.09 CLEAN.UP
Upon completion ol Work in this Section, all rubbish and debris shall be removed from the job site. All construction equipment and implements of service shall be removed and the entire area involved shall be left in a neat, clean and acceptable condition.
3.I O DISPOSAL OF SURPLUS AND/OR LINSUITABLE MATERIALS
Excavated materials which are determined by the Soil Engineer to be unsuitable for use in controlled fill, structural fill or structural backfill shall be disposed of, offsite, by the Contractor or in an area pre-approved by the Owner.
C \20 I 8\ I 8-021 nspcciticarion$Div 2 docx Division 2 All base course and AC pavement shall be underlain by a minimum l2 inch thickness of controlled compacted fill. In areas where less than 12 inches of fill or no filling is proposed. the existing grade shall be scarified and the moisture content adjusted to obtain optimum moisture content and recompacted to a depth ofat least l8 inches. Compaction shall be a minimum of95 percent ofrelative compaction.
Section02200-15
Earthwork and Site Preparation
3.I I IMPORTATION OF SUITABLE FILL MATERIALS
In the event that sufficient quantities of excavated material are not available at the Contract work site, Contractor shall provide suitable material for controlled fills from an alternate source, as approved by Owner's Geotechnical Engineer. Include all associated costs in items provided on Bidding Sheet.
END OF SECTION O22OO
G \2018\ I 8-02 I 7\Specr tications\Drv 2 docx Division 2 Section 02221 - I
Trenching, Backfi lling & Compacting
SECTION 0222I
TRf, NCHING, BACKFILLING AND COMPACTING
PART I . GENERAI,
I.O I DESCRIPTION
Requirements specified in Conditions of Contract and Division I form a part of rhis Section. The Work of this Section includes all labor. machinery, construcrion equipment. and appliances to perform in a good workmanlike manner all trench excavation and backfill work shown on the Drawings and herein specified.
WORK INCLUDED IN THIS SECTION: Principal items included:
l. Trench excavation. backfill and compaction.
RELATED WORK NOT INCLUDED IN THIS SECTION:
Item Section
Earthwork & Site Preparation 02200
Sheeting, Waling & Shoring 0241 5
Piping & Conduit Work specified in other Sections.
I.02 GENERALREQUIREMENTS
Requirements ofSection 02200 apply to this Section.
I.O3 SAFETY
The Contractor shall familiarize himself with. and shall at all times conform to all applicable regulations of "Excavations, Trenching, and Shoring" of OSHA Safety and Health Regulations for Construction. "General Construction Safety Orders" and "Trench Construction Safety Orders" of the State of California, Department of Industrial Relations, Division of Occupational Health and Safety. and pertinent requirements of Soils Investigations Repon referenced in Specification Section 02200 (if applicable) and applicable requirements specified in Section 0241 5.
I.04 INSPECTION AND CONTROL
A Soils Engineer may be engaged by the City, who shall act as the direct representative of the City in soils work, to perform inspection of the removal and replacement of unsuitable materials, and the placement and compaction of all fills and backfills within the limits of eanhwork on this project. All work shall be done in accordance with these Specifications and as directed by the City. Costs for all such inspections and tests will be paid by the City. If retesting is required because the Contractor did not meet the Specification, the Contractor shall pay for all retesting.
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C \201E\ l8-021nspecrficarDns\Dv 2 do.x Division 2
PART 2 - PRODUCTS
2.OI MATERIALS
GENERAL:
l. The Work performed under this Specification shall be constructed to the lines, grades. elevations. slopes and cross sections indicated on the Drawings, specified herein, and/or directed by the City in writing. Slopes, graded surfaces, and drainage features shall present a neat. uniform appearance upon completion ofthe Work.
2. It shall be the Contractor's responsibility (l) to maintain adequate safety measures and working conditions: and (2) to take all measures necessary during the performance of the Work to protect the entire project area and adjacent properties which would be affected by this Work from storm damage, flood hazard. caving of trenches and embankments, and sloughing of material, until final acceptance by the City. It shall be the Contractor's responsibility to maintain completed areas until the entire project area is in satisfactory compliance with the project Specifications.
3. Contractor shall be responsible for the excavation and disposition of unsuitable or surplus material by approved means of
conveyance away from the working area.
UTILITY PROTECTION: Utility lines and structures indicated on the Drawings which are to remain in service shall be protected by the Contractor from any damage as a result of his operations. Where utiliry lines or structures not shown on the Drawings are encountered. the Contractor shall report them to the City before proceeding with the Work.
The Contractor shall bear the cost of repair or replacement of any utility lines or structures which are broken or damaged by his operations.
Section 02221 - 2
Trenching, Backfi lling & Compacting
90 t5
5 B
SELECT GRANULAR MATERIAL: Select granular material shall conform to the size gradation listed below. The use ofother material shall be reviewed by the City prior to use. The City may require certification that the material meets the following gradation.
SELECT GRANULAR MATERIAL
Sieve Size Percent Passing
Min. Max.
3/4 inch
3/8 inch
No. 4
No. 8
t00
80 l0
0 C U0l8\ l8{21nsp€crficarions\Dy 2 dl)cx Division 2
I.O5 REQ(JIREMENTS
A.
I}
Section 02221 - 3
Trenching. Backfi lling & Compacting
SELECT BACKFILL MATERIAL: Select backfill material shall be material excavated from the trench. The material shall be free ofrubbish. broken pavement. debris. stones greater than 4 inches in greatesl dimension. organic mulch, or other deleterious materials. Ifthe excavated trench material is unsuitable for backfill. other imported material shall be used, provided the material is reviewed by the City prior to impon or placement. The imported material shall be select earth, sand, or gravel. conforming to the requirements for the material excavated from the trench and used for backfill.
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I)
CONCRETE:
Section 03300
3.000 psi compressive strength, minimum, as specified in PIPELINES: Use materials shown on the Drawings and as specified in other peninent Sections of this Specification.
PART 3 - EXECUTION
3.OI TRENCH EXCAVATION
EXCAVATION FOR TRENCHES: Shall include the removal of all material of any nature for the installation of the pipe or facility and shall include the construction of trench shoring and stabilization measures, timbering and all necessary installations for dewatering.
MINIMUM WIDTH OF TRENCH: The minimum width of pipe
trenches. measured at the crown of the pipe. shall not be less than 12 inches greater than the exterior diameter ofthe pipe. exclusive of bells and the minimum base width ofsuch trench shall be not less than l2 inches greater than the exterior diameter of the pipe, exclusive of special structures or connections. and such minimum width shall be exclusive of all trench supports.
MAXIMUM WIDTH OF TRENCH: The maximum allowable width of trench tbr all pipelines measured at the top of the pipe shall be the outside diameter of the pipe (exclusive of bells or collars) plus I 6 inches. and such maximum shall be inclusive of all timbers. A trench wider than the outside diameter plus l6 inches may be used without special bedding ifthe Contractor, at his expense, furnishes pipe ofthe required strength to carry the additional trench load. Such modifications shall be submitted for the City's review. Whenever such maximum allowable width of trench is exceeded for any reason. except as provided for on the Plans or in the Specifications, or by the written direction of the City. the City may, at irs discretion, require that the Contractor. at his own expense for all labor and G \201 8\ I 8-021 nspecilicalons\ Drv 2 docx Division 2 B.
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Section 02121 - 4
Trenching. Backfi Iling & Compacting
materials, cradle the pipe in 2500 psi compressive strength concrete. or other approved pipe bedding.
MAXIMUM LENGTH OF OPEN TRENCH: Except by special
permission by the City only that amount of open trench shall be permitted, which shall allow for that amount of pipeline construction. including excavation, construction of pipeline, and backfill in any one location, which can be completed in one day; however. maximum length of open trench shall never exceed 600 feet. This length includes open excavation, pipe laying and appurtenant construction and backfill which has not been temporarily resurfaced.
TRENCH SIDE SLOPES:
l. Temporary trench excavations shall at all times conform to the safety requirements hereinbefore specified in Paragraph entitled "Safety".
2. Loose cobbles or boulders shall be removed from the sides of the trenches before allowing workmen into the excavation. or the trench slopes must be protected with screening or other methods.
Trench side slopes shall be kept moist during construction to prevent local sloughing and raveling. Surcharge loads due to construction equipment shall not be permined within 8 feet of the top ofany excavated slope.
3. If the Contractor elects to shore or otherwise stabilize the trench sides, he shall file with the City copies of drawings for same prepared and signed by a Civil Engineer duly registered in the State of Califomia before commencing excavation.
EXCESS TRENCH EXCAVATION: If any trench, through the neglect of the Contractor, is excavated below the bottom grade required, it shall be refilled to the bottom grade, at lhe Contractor's expense for all labor and material. with select granular material compacted to a firm stable foundation.
3.02 BRACING TRENCHES
The sides of the trenches shall be supported with plank sheeting and bracing in such a manner as to prevent caving of the sides of the trench. Space left by withdrawal of sheeting or shoring shall be filled completely with dry granular material blown or rammed in place. All trenches deeper than 5 feet shall be shored unless cut to the angle ofrepose ofthe excavated soils.
3.03 PIPING BEDDING
The Contractor shall excavate to 4 inches below the bells or couplings for the full width of the trench and shall place four (4) inches of select granular material upon which the pipe is to be taid. In cases, as determined by the City where trench material is suitable for D
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C U0l8\ l8i2l nspecrticarrons\Dv 2 doc\ Division 2
E.
Section 02221 - 5
Trenching, Backfi lling & Compacting
use as bedding, the trench may be excavated to a point above the invert grade, and the trench bottom hand-shaped so that the bottom segment ofthe pipe is firmly supported on undisturbed material.
At pipe subgrade. if tbundation soil in trench is soft, wet, spongy, unstable or does not afford solid foundation for pipe, the Contractor shall excavate as directed by the City and provide stable base by excavating any unsuitable material 24" minimum below the subgrade base or as the City decides is necessary for placement of pipe bedding.
Where rock is encountered in the trench. the Contractor shall excavate to a minimum l8 inch depth below subgrade or as the City decides is necessary. and shall construct a base by placing select granular material upon which a subgrade can be prepared.
Before any pipe is lowered in place, the trench bottom shall be prepared so that each pipe shall be supponed for the full length ofthe barrel with full bearing on the bottom segment of the pipe equal to a minimum of one-half of the pipe OD. and a width equal to the trench width. All adjustments in line and grade shall be made by scraping away or filling and tamping in underthe barrel ofthepipe. Wedging or blocking is not permitted.
The pipe bedding shall be compacted to a minimum of90 percent relative compaction as herein after specified.
3.0.1 BACKFILLING PIPE TRErr-CtlES
BACKFILLING PIPE TRENCH: After the pipe has been laid in the trench and has been inspected and approved, and backfilling in the pipe zone is complete and compacted. the remainder of the trench may be B
G \20 I 8\l 8-02 I 7\Spccrfi callons\l)rv I doc\ Division 2 BACKFILLING PIPE ZONE: Backfill material for the pipe zone shall consist of select granular material as specified in paragraph 2.01 . I . Place material in the trench simultaneously on each side ofthe pipe for the full width of the trench and the depth of the pipe zone in layers 6 inches in depth. Each layer shall be thoroughly compacted by tamping. In all cases, backfilling of the pipe zone must be done by hand. Particular attention shall be given to underside of the pipe and fittings to provide a firm support along the full length of the pipe. The pipe zone shall be considered to extend l2 inches above the top of the pipe, and shall be compacted in the trench to a relative compaction of not less than 90 percent as herein after specified. Care shall be taken not to damage pipe or special coatings on the pipe.
l. Use ofMaterial other than those specified shall be reviewed by the City prior to use. The Contractor shall bear all cost of removal of rejected material, its hauling to an authorized disposal site, and cost of providing required material to complete the bedding and backfilling.
Section 02221 - 6
Trenching, Backfi lling & Compacting
backfilled. The backfill material shall be select backfill material as specified in paragraph 2.1 .2. Care shall be taken to ensure that no voids remain under. around or near the pipe.
l. Whenever imported borrow for backfill is required, the Contractor shall fumish this borrow material and dispose of the excess trench excavation and shall include the expense ofthis work in his bid.
COMPACTION: The maximum dry density and optimum moisture content of each soil type used in the controlled compacted fill shall be determined by ASTM D-1557-91. Field density tests shall be determined in accordance with ASTM D1556-82. ASTM D2937-83 , D2922-81 .
PLACEMENT AND COMPACTION OF TRENCH BACKFILL: ThC
placement and compaction of all trench backfill shall conform to one of the following methods subject to the qualification specified therein:
l. Mechanically Compacted Backfill: With review of City backfill shall be mechanically compacted by means of tamping rollers, sheepsfoot rollers. pneumatic tire rollers. vibrating rollers. or other mechanical tampers to 90 percent relative compaction except that backfill compaction for trenches above the pipe zone shall be to a minimum 95 percent in areas under buildings and pavements.
Where the backfill soil has a clay-like behavior and has a plasticity index ofat least 12. only the upper 3 feet of material placed shall require minimum compaction of 95 percent. Impact-t1pe
pavement breakers (stompers) shall not be permitted over any pipe.
Permission to use specific compaction equipment shall not be construed as guaranteeing or implying that the use of such equipment will not result in damage to adjacent ground. existing improvements. or improvements installed under the Contract. The Contractor shall make his own determination in this regard.
Mechanically compacted backfill shall be placed in horizontal layers not exceeding eight inches. Each layer shall be evenly spread, the moisture content brought to near optimum condition and then tamped or rolled until the specific relative compaction has been attained.
3.05 CENTRALPIPELINEINSTALLATIONREQUIREMENTS
DEPTH OF PIPE: Unless otherwise shown on the Plans. all pipelines shall have a coverage of at least 36 inches between the top of the pipe and the finished surface. All gravity line invert elevations and locations shown are intended to be exact and any change in alignment and grade may only be made with the review of the City. All force and gravit-v mains shall have I foot vertical clearance between themselves and all other utilities.
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C U0l 8\ I 8{21nspecr licarrons\Drv I docx
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Division 2
Section 0222l - 7
Trenching. Backfi lling & Compacting
At all water main crossings. both gravity and force mains shall have 20 linear feet ofconcrete encasement centered at the crossing.
CHANGES IN LINE AND GRADE: In the event obstrucrions nor shown on the Plans are encountered during the progress of the Work which will require alterations to the Plans. the City will issue the necessary changes to the Plans and order the necessary deviation from the line or grade. The Contractor shall not make any deviation lrom the specified line and grade without prior review by the City. Should any deviations in line and grade be permitted by the City in order to reduce the amount of rock excavation or for other similar convenience to the Contractor, any additional costs for thrust blocks, valves, air and vacuum valve assemblies, blow-off assemblies. extra pipe footage, concrete, sewer slructures. or other additional costs shall be borne by the Contractor.
l. Contractor shall include in his Bid provisions to cover any deviation from the invert grade shown on the Plans to facilitate extra depth required to eliminate possible conflicts between culverts and other utilities with the lorce and sewer mains.
INSTALLING PIPE: Contractor shall, after excavating the trench and preparing the proper bedding lbr the pipe, furnish all necessary tacilities for properly lowering and placing sections of rhe pipe in the trench without damage and shall properly install the pipe. The section of pipe shall be fined together correctlv and shall be laid true to line and grade bedding material. but if the pipe has a projecting bell, suitable excavation shall be made to receive the bell which shall not bear on the subgrade.
The requirements for closely fitting the bottom of the pipe to the bedding material for the width shown on the Drawings shall be strictly enforced. l- Pipe shall be laid up grade. Any pipe which is nor in true alignment. both vertical and horizontal, or shows any undue settlement after laying shall be replaced when so ordered by the City. No pipe shall be laid which is damaged. cracked. checked or spalled or has any other defect deemed by the Ciry to make it unacceptable, and all such sections shall be permanently removed from the Work.
2. At all rimes when the Work of installing pipe is not in progress. all openings into the ends of the pipelines shall be kept tightly closed with suitable plywood or sheer metal bulkheads to prevent the entrance of animals and foreign materials and to prevent water from entering the pipe.
3. Keep the pipe trench free from water at all times and take all necessary precautions to prevent the pipe from floating due to water entering the trench from any sources. Any damage is the Contractor's full responsibility. Restore and replace the pipe to its specified conditions and grade if it is displaced due to floating.
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C U0l8\ l8{2lnspec,licarrons\Drv 2 docx Division 2
B.
Section olfll - 8
Trenching, Backfi lling & Compacting
All pipelines adjoining concrete structures (including manholes) shall have a tlexible joint within 36 inches from the face of such concrete structures. Flexiblejoints shall be installed on all pipe 4" and larger whether a flexible joint is shown on the Drawings or not. Where the flexible joint is shown on the Drawings, install the joint at the location shown.
3.06 CLEANUP
Immediately upon completion of Work of this Section, all rubbish and debris shall be removed from the.iob site. All construction equipment and implements of service shall be removed and the entire area involved shall be left in a neat, clean and acceptable condition.
END OF SECTION 0222I
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C U0l8\ 18{21nspetrficatrons\Drv 2 docx Division 2
Section 02250 - I
Sewer Bypass System
SECTION 02250
SEWER BYPASS SYSTEM
PART I . GENERAL
I ,O I DESCRIPTION
A. During rehabilitation of the manholes, Contractor may determine that the existing sewer flows need to be bypassed or contained through the manhole. Conveyance of sewage shall not be intemrpted by project construction. The Contractor shall be responsible for necessary bypassing ofthe existing sewers and bear all costs for same.
B. Once normal operation of the existing sewer is intemrpted, the sewer shall be considered bypassed and the responsibility of maintaining sewage conveyance by pumping shall be the Contractor's. Contractor shall remain solely responsible for the operation ofthe bypass lacilities until such time as the existing manhole is rehabilitated and ready for service.
C. Contractor shall have adequate number ofpumper trucks available to haul away sewer flows where required. Manholes shall be kept active or dry of sewer flow with the use of Flow-Thru plugs and hoses.
D. Bypass facilities shall be located in a manner so as to minimize the impact on adjacent properties. traffic, and potential for sewage spill.
E. This article covers furnishing all labor, supervision. materials and equipment and performing all operations necessary to installing and maintaining sewer bypass systems.
F. This item shall include all equipment, maintenance and operations necessary to bypass the sewer for the construction of the sanitary sewer gravity main and force main relocation and replacement as shown on the project plans.
G. The provisions of Section 7-8.5 "Sanitary Sewers" and Section 306-5 "Dewatering" of the Standard Specifications for Public Works Construction (SSPWC) and all other applicable provisions of these specifications shall apply except as modified and supplemented below.
H. The Contractor shall construct. operate. maintain and remove, without damage to existing structures. all temporary sewage handling facilities.
The Contractor shall supply the pumps, conduits, power, labor and other C \201E\ lE{2lnsp.c,ficarrcns\Drv 2 docx Division 2
Section 02250 - 2
Sewer Bypass System
equipment to divert the flow of sewage around the areas where work is to be performed. The bypass system shall be of sufficient capacity to handle existing flow and, if required by the Contract Documents, additional flow during a rainstorm. The Contractor shall have on-site a 100% backup of the by-pass systems and capable of pumping 150% of the existing flow.
The design. installation and operation of the temporary pumping system shall be the Contractor's responsibility through the duration ofthe project.
I.O2 RELATED WORK SPECIFIED ELSEWHERE
A. The requirements of the following sections and divisions apply to the Work of this section. Other sections and divisions of the Specifications, not referenced below, shall also apply to the extent required for proper performance of this Work.
1. Division 9 - Finishes
I.O3 REFERENCE SPECIFICATIONS. CODES. AND STANDARDS
A. All Work specified herein shall coniorm to or exceed the applicable requirements of the referenced portions of the following publications to the extent that the provisions thereof are not in conflict with other prov isions of these Specifications.
B. Comply with the applicable editions of the following codes, regulations and standards.
1. City of Imperial Detail Drawings for the Construction of Sanitary Sewer Systems
2. Industry Standards:
SSPWC "Green Book", Standard Specifications for
Public Works latest edition.
C. Comply with the applicable reference Specifications as directed in the General Conditions, other applicable parts of the Contract Documents, and specified herein.
I.O4 SUBMITTALS
A. Complete fabrication. assembly. and installation drawings, together with details and data goveming materials used and other accessories fumished. shall be submitted for approval in accordance with General Conditions, G \2018\ 1 8421 nspec rlicalrons\Drv 2 docx Division 2
Section 02250 - 3
Sewer Bypass System
other applicable parts of the Contract Documents, and as specified herein Data shall include. but not be limited to. the following items.
A. The Contractor shall submit four copies of the drawings of material and equipment; it may be the brochures of catalog sheets of manufacturer, showing in sufficient details the dimensions and manufacturer's tolerances. In addition, Contractor shall submit a complete bypass plan that includes scheduling.
B. Qualifications of the person preparing the plan.
C. Flow Monitoring Plan.
D. Bypass plan per requirements of this section. Specify when the plan is required to be submitted. Allow time, at least 30 days, for review and approval. City must receive notification one week in advance before bypassing stans and bypass plan must be approved at the time notification ofbypass activities is sent.
E. Written Spill prevention and emergency response plan. The plan shall identify waterways, channels, stormwater drains to be protected, emergency contacts. notifi cation procedures.
F. Tratfic Control Specification - include reference to that section if applicable.
PART 2 PRODUCTS
2.OI GENERAL
A. The bypass system shall meet the requirements of all codes and regulatory agencies having jurisdiction. The bypass system shall, at a minimum, meet the requirements and include the equipment as specified herein. 2,02 ANTICIPATED F I,OWS
A. Pump and motor system rated at a capacity sufficient to convey the upstream peak flows as required by the Contract Documents. Provide all temporary high lines. line stops. thrust restraints. etc. as required.
B- Peak flows for each manhole location is provided on Sheet 2 of the Project Plan s.
G \2018\18-02lnspccrfi€atrons\Drv I docr Division 2
Section 02250 - 4
Sewer Bypass System
2.03 GENERAL SYSTEM REQUIREMENTS
A. The bypass systems are to be monitored 24-hours a day, 7 days a week for the entire duration of work by personnel on-site duly qualified to maintain and operate the sewer bypass system.
B- Pump starter and control panel which includes the following:
l. Hand-off-autoselector
2. Run indication light
3. Fail indication light
4. High level indication light
C. Float control system which includes the following:
l. Low level float (pump stop)
2. High level float (pump start)
3. High level float (high level alarm)
D. An alarm system which will notiff Contractor personnel in the event ofan alarm (pump fail and high level).
E. Sound attenuated enclosure for all engine drivers and/or power generating equipment.
F. 100% standby capacity shall be installed as part of any bypass system such that, in the event of a failure of the primary bypass equipment, stand-by equipment may immediately be placed into service.
G. Backup power.
H. Flow monitoring ofupstream and downstream flows.
2,04 PUMPS
A. All pump(s) drivers shall have noise suppresser exhaust systems to mitigate the noise levels to less than 50 dB or l0 dB above ambient noise level when measured at the property lines closest to the noise source.
B. The Contractor shall be responsible for fumishing the necessary pump(s) and back- up pumps to adequately convey 150%o of the stated flows in G \201 8\ I 842 I nspec rfications\Drv 2 docr Division 2 Section 02250 - 5
Sewer Bypass System
Article entitled "Anticipated Flows" of this Specification C. Contractor shall account for the suction lift and the pressures at the force mains and shall provide for all requirements, equipment. elc. to accommodale these hydrological parameters.
PART 3 _ EXECUTION
3.OI BYPASS PUMPING
B. Under no circumstances shall sewage or solids be deposited onto the ground surface, or into ditches, catch basins or storm drains or natural drainage ways. Sewage shall be handled in a manner so as not to create a public nuisance ofhealth hazard.
C. The Contractor shall be responsible for any waste solids and shall property handle. transpon, and dispose of said solids in accordance with the requirements of all codes and regulatory agencies having jurisdiction.
Contractor shall be responsible for preventing. containing, recovery. and legal disposal ofsewer overflows and spills. Contractor shall be responsible for handling penalties, liability, and claims for causing or allowing wastewater spills.
D. The sewage flow from the sewer main(s) shall be maintained during construction and handled in a manner so as not to create a public nuisance or health hazard during the execution of the work to be performed under this Contract. In the event that sewage backup occurs and enters dwellings or other structures the Contractor shall be responsible for cleanup, repair property damage costs and all claims arising therefrom. All spills shall be contained and returned to the sanitary sewer system.
E. The Contractor shall be responsible for fumishing the necessary labor and supervision to set up and operate the pumping and bypassing systems. The bypass systems are to be monitored 24-hours a day. 7 days a week for the entire duration ofwork by personnel on-site duly qualified to maintain and operate the sewer bypass system.
F. The Contractor shall provide reliable sewer service to the users of the sanitary sewer at all times, so as to prevent backup and/or overflow into G \201 8\ 1 8{21 nspec iticalions\Div 2 docx Division 2 A. All pump(s) drivers shall have noise suppresser exhaust systems to mitigate the noise levels to less than 50 dB or l0 dB above ambient noise levels when measured at the property lines closest to the noise source.
Section 02250 - 6
Sewer Bypass System
adjacent streets, ditches, storm sewers and waterways during construction of the sewer pipes and to allow for manhole connections, construction and reconstruction.
3.02 DESIGN REQUIREMENTS
A. The Contractor shall have adequate standby equipment with 100% standby capacity available and ready for immediate operation and use in the event of an emergency or breakdown. One standby pump for each size pump utilized shall be installed at the mainline flow bypassing locations, ready for use in the event of primary pumpfailure.
B. Bypass pumping system shall be capable of bypassing the flow around the work area without interrupting, causing operational issues. or sewer overflows in the City's sanitary sewer system and of releasing any amount of flow up to full available flow in the work area as necessary for satisfactory performance of work.
3.03 PERFORMANCEREQUIREMENTS
A. It is essential to the operation ofthe existing sewage system that there is no intemrption in the flow of sewage throughout the duration of the project.
To this end, the Contractor shall provide, maintain and operate all temporary facilities such as dams, plugs, pumping equipment (both primary and back-up units as required), conduits, all necessary power, and all other labor. tools and equipment necessary to intercept the sewage flow before it reaches the point where it would interfere with his work, carry it past his work and retum it to the exisring sewer downstream of his work.
B. The design, installation and operation of the temporary pumping system shall be the Contractor's responsibility. The bypass system shall meet the requirements ofall codes and regulatory agencies having jurisdiction.
C. The Contractor shall provide all necessary means to safely convey the sewage past the work area. The Contractor will not be permitted to stop or impede the main flows under any circumstances
D. The Contractor shall maintain sewer flow around the work area in a manner that will not cause surcharging of sewers, damage to sewers and that will protect public and private property from damage and flooding.
E. The Contractor shall protect water resources, wetlands and other natural resources.
G \201 8\l It-02 I nspecrlicatlons\D1\, : doc\ Division 2 Section 02250 - 7
Sewer Bypass System
3.04 BYPASS PUMPING AND FLOW CONTROL PLAN
A. The Contractor shall be responsible to prepare and submit a bypass pumping and flow control plan in conformance with the requirements of Section 306-6 ofthe Public Works Specifications. and these Specifications.
A bypass pumping and flow control plan is to be submitted l0 Calendar Days after Notice to Proceed (allow 20 days for review). Contractor shall notiry the City in writing 2 weeks in advance before bypassing activities.
Notice to start any bypassing activities shall be given only after the bypass plan has been approved.
B. The Contractor shall submit detailed plans and descriptions outlining all provisions and precautions to be taken by the Contractor regarding rhe handling of existing wastewater flows. This plan must be specific and complete, including such items as schedules, interception of sewer/discharge locations, elevations (water levels. street, sewer line, bypass line. point of discharge). capacities of equipment. materials and all other incidental items necessary and/or required to insure proper protection of the facilities, including prorection of the access and bypass pumping locations from damage due to the discharge flows, and compliance with the requirements and permit conditions specified in these Contract Documents.
No construction shall begin until all provisions and requirements have been reviewed by the City.
C. The plans shall include but not be limited to details of the following:
l. Bypass start and end dates;
2. Name and phone ofwho is responsible for daily operation:
3. 24-hour contact information in case ofoperational emergency:
4. A Spill Response Plan Should be included as pan of this bypass pumping planl
5. A flow monitoring plan (to veri! bypassing system can handle the flows) should be included as part of this bypass pumping plan.
6. Staging area for pumps;
7. Traffic control measures to accommodate bypass equipment and staging area;
G \201 8\ l8{21nspec I ticarrcns\ Drv 2 docx Division l Section 02250 - 8
Sewer Bypass System
8. Sewer plugging method and types ofplugs;
9. Number. size. material. location and method of installation of suctionpiping; and
10. Number. size, material method of installation and location of installation of discharge piping;
I l. Bypass pump sizes, capacity, number of each size to be on site and power requirementst
12. Calculations of static lift, friction losses, and flow velocity (pump curves showing pump operating range shall be
submitted);
13. Standby power generator size, location;
14. Downstream discharge plan specifuing how bypassing sewer will be handled or directed.
15. Method of protecting discharge manholes or structures from erosion and damage;
16. Thrust and restrain block sizes and locations;
17. Sections showing suction and discharge pipe depth, embedment. select fill and special backfill;
I 8. Method of noise control for each pump and/or power generator;
19. Any temporary pipe supports and anchoring required;
20. Design plans and computation for access to bypass pumping locations indicated on the drawings;
2L Calculations for selection ofbypass pumping pipe size;
22. Schedule for installation ofand maintenance ofbypass pumping lines;
23. Plan indicating selection location ofbypass pumping line locations;
24. Sequence for bypass removal and sewer main system cleaning.
3.05 SERVICETNTERRUPTION
A. The Contractor shall maintain sewer service to all upstream users. Any service intem:ption will require prior City approval and coordination with City staff.
C U0l8\ I 8{2 I nspec r lical rcns\DN 2 docr Division 2 Section 02250 - 9
Sewer Bypass System
3.06 MEASUREMENT AND PAYMENT
A. Measurement
I . The sewer bypass system shall not be measured for payment.
B. Payment
Payment for the sewer bypass system shall be paid at the Lump Sum Contract Unit Price stated in the appropriate Bid ltem(s). Payment shall constitute full compensation for fumishing the installing of material, labors. pumps. construction staking and surveying, traffic controls. continual monitoring. back- up systems. system removal. pipeline jening, surface restoration (including pavement replacement), sound attenuation, permitting, and all other incidentals necessary to complete the work per the satisfaction of the City.
Payment will occur upon satisfactory completion of the task. No additional compensation will be allowed thereot'.
END OF SECTION 02250
C \201 8\ I 8-02 I nspec I fications\Drv 2 docx Division 2 Section 02415 - |
Sheeting, Waling and Shoring
SECTION 024I5
SHEETING. WALING AND SHORING
PART I - GENERAL
I.O I DESCRTPTION
Requirements specified in the Conditions ofthe Contract and Division I form a pan of this Section. Provide protective installation consisting of shores, wales, braces, posts, piling. sheeting. anchorages and fastenings. both temporary and permanent. for accomplishment and protection of Work.
WORK INCLUDED IN THIS SECTION: Principal items included:
l. Shoring and sheeting for structure excavation.
2. Temporary sheeting and bracing for pipeline work as required.
3. Materials for permanent sheet and bracing.
I.O2 QUALITY ASSURANCE
MATERIAL STANDARDS: Furnish lumber flor shores, wales. and sheeting of grading required by the American Lumber Standards for the particular application.
I.O3 SUBMITTALS
Contractor shall submit complete calculations of the sheeting system including sizing of sheeting wales, rakers. anchor system, struts, earth anchors, anchor piles, tie rods or any other components pertinent to the design prior to the start of any Work involving sheeting and bracing. All designs submitted shall be signed by an engineer duly registered in the State of California.
1.0,1 JOB CONDITIONS
Buried debris may be found at some locations. Federal and local requirements for safety ofjob personnel and public will apply to work under the Section.
I.O5 ALTERNATIVES
The use of application of altemative methods and materials, and the employment of proprietary systems under lease or franchise in lieu of that specified herein, may be allowed. Demonstration of suitability and compliance with these Specifications will be required.
PART 2 - PRODUCTS
A
C O0l8\ 18421nspc.rficalrons\Drv 2 docx Division 2
2.OI MATERIALS
A. LUMBER:
Temporary Shores, Wales and Sheeting: Furnish structural grade planks, beams, and posts as defined and specified for stress-grade lumber in the American Lumber Standards. Lumber may be
rough. untreated, in random lengths. and shall be of standard dimensions.
Permanent Sheeting: When permanent sheeting is called for on the Drawings, provide and install planks, beams, posts and timbers of unseasoned, rough, new southem yellow pine or Douglas Fir meeting the requirements of ASTM Standard D25, Class "C". In lieu ofthe above. lumber dressed to standard dimensions. dried and treated in accordance with Standard T-3 of the American Wood Preservers' Association may be utilized.
FASTENINGS: Provide fastenings for perrnanent sheeting as recommended in the National Design Specification for stress-grade lumber and its fastening.
PART 3 - EXECUTION
3.OI INSTALLATION
Install sheeting and bracing for trench and structure excavation progressively as the removal of excavated material requires. Butt planks to exclude groundwater and fines. preventing the erosion of voids outside sheeting. In soft, wet ground drive sheeting to a lower level as excavation progresses to that sheeting is embedded in undisturbed earth.
Bracing of sheet piling may be permitted to penetrate the structural concrete only as directed by the City. Refer to Section 03300. Install wales and struts at close intervals so as to prevent displacement of the surrounding earth and to maintain safe conditions in the Work area. Any damage proven to result from improper installations shall be the responsibility of the Contractor. Temporary sheeting for trench and strucfure excavation may be removed and reused. Withdraw individual planks alternately as the backfill is raised, maintaining sufficient sheeting and bracing to protect the Work and workmen.
Remove bracing completely. Where unstable conditions occur in the underlying strata from any cause, and withdrawal of sheeting will endanger the Work, a portion of the sheering, including bracing, may be left in place with approval of the City. Remove all wood within a zone extending four (.1) feet below finished grade. Leaving such material in place shall not be cause for an increase in Contract price. 2 B
END OF SECTION 024I5
Section 02415 - 2
Sheeting, Waling and Shoring
G \20 l8\ I 8-0217\Spec rficarrons\Drv 2 docx Division 2 Section 02510 - |
Asphalt Concrete Paving
SECTION O25I O
ASPHALT CONCRETE PAVING
PART I - GENERAL
I .O I DESCRIP'IION
Requirements specified in Conditions ofthe Contract and Division I form a part of this Section. Provide labor. equipment. tools and materials to accomplish asphalt concrete paving as indicated on the Drawings and/or on the Bidding Sheet.
I.O2 REFERENCESPECIFICATION
Asphalt concrete paving work shall be in accordance with State of California.
Department of Transportation Standard Specifi cations, Current Edition.
I.O3 PAVEMENT REMOVAL AND REPLACEMENT
GENERAL: Pavement removal and replacement tbr all public roads. including aggregate base and temporary paving where required, shall comply with all the requirements of the agency issuing the Encroachment Permit. In roads established under formation ofa special road Owner, the specifications ofthe Encroachment Permit shall apply. Any private roads and streets, including driveways and facilities in which the surface is removed or damaged, shall be restored to the original grade and crown or as shown on the grading plans by the Contractor in accordance with the paving requirements described herein. Removed or damaged sections shall be restored with the type of improvements (or better) conforming to thal which existed at the time the Contractor entered upon the work.
It shall be the responsibility of the bidder to satisry him as to the existing pavement sections prior to submitting his bid.
PAVEMENT CUTTING: Pavement shall be cut to a straight edge parallel to the pipe alignment prior to excavation. Method of pavement cutting shall be as specified by the agency having jurisdiction or as approved by the Engineer. Under no circumstances shall excavation be started prior to scoring of pavement. If the adjacent pavement is disturbed during the Contractor's operation, the pavement shall be recut on a straight line to remov€ the damaged pavement before resurfacing. Ponland cement concrete pavement and sidewalk shall be saw cut.
A
B
C U0l8\ I8{217\Sp€crficalrons\Drv 2 docx Division 2
t'
Section 02510 - 2
Asphalt Concrete Paving
ASPHALT CONCRETE CAP: Where required by the agency issuing the Encroachment permit or other agency having jurisdiction, and where specified in the Contract Documents. an asphalt concrete cap shall be placed along the length of the trench. The installation of the asphalt concrete cap shall be in accordance with the specifications and policies of the agency having jurisdiction. Where the asphalt concrete cap is not specifically stated in the applicable permit or on the drawings, and when directed by the Engineer, the minimum cap shall be a feathered l-inch thick. l2-foot wide section centered over the center of the trench or the traveled way, and pulled with a "Barber Greene" or equivalent.
PART 2 - PRODUCTS
2.OI ASPHALT CONCRETE PAVING
MIX: PG 70-10 per Caltrans Section 39.
THICKNESS: Per plans.
AGGRECATE SIZE: l12" maximum. medium per Caltrans Section 39.
ASPHALT CONTENT: 5% to 8% by weight.
PRIME COAT: Per Caltrans Section 394.02.
2.02 MIX: PG 70-t0 per Caltrans Section 39.
THICKNESS: Per plans.
AGGREGATE SIZE: 3/8" maximum. fine.
2.03 SPECIFICATION: Caltrans Section 37.
A.
B.
C.
D.
E.
ASPHALT CONCRETE CAP
BITUMINOUS SEAL
MATERIAL:
Section 94.
Slow setting. mixing type asphaltic emulsion per Calrans C \201E\ I 8-0 2 I nspcc rficatrons\Drv 2 dolx
A.
B.
C.
A.
B.
Division 2
Section 02510 - 3
Asphalt Concrete Paving
PART 3 - EXECUTION
3.OI ASPHALT CONCRETE PAVING
APPLICATION: Mixing transporting and placing of asphalt concrete shall be in accordance with all applicable provisions of Caltrans Section 39.
REDWOOD HEADERS: Provide 2"x4" redwood headers lor all
pavement edges.
REPAIRS: Deficient paving and/or low areas with inadequate drainage; and damaged paving due to subgrade failure. inadequate trench compaction. etc. shall be repaired by the Contractor at no addilional cost to the Owner.
3.02 BITTJMINOUS SEAL
A APPLICATION: Apply bituminous seal at a rate of 0.05 gallons per square yard of surface area.
3.03 PAVING SCHEDULE
Unless otherwise approved by the Engineer, all permanent paving shall commence only after construction ofall other contract work is completed.
END OF SECTION 025 IO
B
C
G \20 1 8\ 1 8{21 nspec rlicalions\Drv I docr Division 2 Section 02535 - I
Traffic Stripes. Pavement Markings, and Pavemenr Markers Sf,CTION 02535
TRAFFIC STRIPES, PAVEMENT MARKINGS
AND PAVEMENT MARKERS
PART I_GENERAL
I.OI SECTION INCLUDES
A. PAINTED TRAFFIC STRIPES AND PAVEMENT MARKINGS:
B. PAVEMENTMARKERS:
I.O2 RELATED SECTIONS
A. Section 025 l0 - Asphalt Concrete Paving.
I.O3 REFERENCES
Standard Specifications for Public works Construction (SSPWC), 2000 edition, Section 310-5.6 "Painting Traffic Striping, Pavement Markings, and Curb Markings". Section 210-l "Paint".
Standard Specifications of the State of California Department of Transponation (State Standard Specifications). current edition, Section 91. "Paint": Section 84, "Traffic Stripes and Pavement Markings"; Section 85. "Pavement Markers".
I.O4 STJBMITTALS
MANUFACTURER DATA: Contractor shall submit manufacturer information detailing material and dimensional data for the following:
Paint
Glass Beads
Thermoplastic Traffic Stripe or Pavement Marking Material Markers
TEMPORARY DELINEATION PLAN: Conrractor shall provide a
temporary Delineation Plan as pan ofthe Traftic Control Plan and shall be submitted per General Conditions 6.23.
2 J
4 G \201 8\ 18{21 lspec ilicatrons\Drv 2 docx Division 2 B.
Section 02535 - 2
TrafTic Stripes. Pavement Markings, and Pavement Markers C \2018\ I 8-02 I nspec
'
Iicanons\Dv 2 docx Division 2
Seclion 02535 - 3
Traffic Stripes. Pavement Markings, and Pavement Markers PART 2 _ PRODUCTS
2.OI PAINT
Painted Traffic Striping and Pavement Marking Paint shall conform to Section 84-3.02 of the State Standard Specifications and shall be Rapid Dry Water Bome.
2.02 GLASS BEADS
Glass Beads shall conform to Section E4-3.02 ofthe State Standard Specifications. 2,03 PAVEMENT MARKERS
Pavement markers shall conform to Section 85 ofthe State Standard Specifications.
2.04 PAVEMENT MARKER ADHESIVE
Adhesive for use in cementing pavement markers to the pavement shall be ofthe Rapid Set rype or the Standard Set type in accordance with Section 85-1.06 of the State Standard Specifi cations.
PART 3 _ EXECUTION
3.0 t ALIGNMENT AND LAYOUT OF TRAFFIC STRIPES, PAVEMENT MARKINGS. AND PAVEMENT MARKERS
Traftic Striping, Pavement Markings, and Pavement Markers shall be applied to replace existing striping, markings, and markersi as shown on the Contract Drawings; or as directed by the Engineer.
Layout of all traffic striping, pavement markings and pavement markers shall be the responsibility of the Contractor.
The Contractor shall perform all surveying as necessary to establish adequate control for alignment and layout ofall striping. markings. and markers.
The initial layout ofall striping. markings. and markers shall be marked by the Contractor using cat tracks or dribble lines. Prior to final striping, the Engineer shall review the alignment marked out and shall make adjustment as necessary. Adjustment of the initial layout by the Engineer shall not entitle the Contractor to additional compensation.
Alignment of striping, markings. and markers intended to replace existing striping, markings, and markers shall match existing alignment and layout except as directed by the Engineer.
C U0l8\ I t{21nspe.rficalrons\Drv : docx Division 2
Section 02535 - 4
TraIIic Stripes, Pavement Ma*ings. and Pavement Markers
3.02 TRAFFIC CONTROL
Contractor shall be responsible for maintaining safe traffic operation through the work area prior to and during application of permanent trallc striping. and pavement markings. and pavement markers.
Contractor shall submit a plan for tra{Tic control during striping operations and a plan for temporary delineation prior to application of permanent delineation for review by the Engineer prior to any striping work.
Temporary delineation shall be applied to finished pavement surfaces prior to being returned or opened to free tlowing traffic.
Traftic striping. pavement markings, and pavement markers shall be applied within 48 hours ofinstallation of finished pavement.
Traffic striping and pavement markings shall be applied in two coat and shall conform to Section 84-3.03. 84.04 and 84-3.05 ofthe Srate Standard Specifications. The first coat shall be applied following completion of the rolling and application of the fog seal.
Second coat shall be completed no later than 4 PM ofthe following day.
Traffic stripes and pavement markings shall conform to the Standard of the State of Cal i fomia- Department of Transportation.
Pavement markers shall be placed in conformance with Section 85 of the State Standard Specification.
END OF SECTION 02535
C U0 I 8\ I 8{2 ! nspec r ficarrcns\ Drv 2 docx Division 2
3.03 APPLICATION OF TRAFFIC STRIPES, PAVEMENT MARKINGS, AND
PAVEMENT MARKERS
Section 02620 - I
Existing Underground Utilities
SECTION 02620
I,XISTING UNDERGROUND UTILITIES
PART I - GENERAL
I.OI DESCRIPTION
Requirements specified in conditions ofthe Contract and Division l, 2 and l5 form a part of this Section. Provide work related to existing underground utilities as set forth herein.
WORK INCLUDED IN THIS SECTION: Principal items are:
l. Exposure ofexisting utilities.
2. Advance notification ofutility agencies.
3. Crossing, protection and/or relocation ofutilities.
4. Protection ofother existing facilities.
B RELATED WORK NOT INCLUDED IN THIS SECTION: Sire Utiliries.
Section 0261 0.
I.O2 EXPOSURE OF UTILITIES IN ADVANCE OF WORK
A DETERMINATION OF LOCATION AND DEPTH:
l. Determine the true location and depth of all utilities and service connections; including the type, material, and condition of any utiliry which may be affected by or affect the work.
2. Coordinate with all utility companies field locate all underground lines before sran ol'construction.
EXPOSURE IN ADVANCE OF TRENCHING:
l. Expose all utility mains that must be crossed or closely paralleled at least 1500' in advance ofconstruction.
2. Contractor shall immediately after field location, provide the location and depth ofthe "potholed" utilities to the Engineer. 3. Expose all service connections before excavation in the area. 4. All cost incurred in exposing utilities shall be borne by the Contractor.
RIGHTS TO MINOR ADJUSTMENTS IN DESIGN: The City reserves the right to make minor adjustments in pipeline alignment and grade. all at no additional cost to the City.
COMPLIANCE: Failure of the Conrractor to comply with the provisions described herein will result in an order to suspend work until these provisions are complied with, and no addilional compensation will be allowed as a result ofsuch suspension.
A
B
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G \2018\ l8{2lnspcc,ficarmns\Drv 2 docx Division 2
Section 02620 - 2
Existing Underground Utilities
I.O3 ADVANCE NOTIFICATION OF UTILITY AGENCIES
l. Determine and notiff those agencies requiring advance notification for inspection or other purposes before beginning construction in any area of concem to said agency.
2. Provide agencies with 48 hours minimum advance notice.
I.04 CROSSING PROTECTION AND/OR RELOCATION OF UTILITIES GENERAL: Utilities for the purpose of these specifications shall be considered as including, but not limited to, and irrespective of ownership; Pipelines (including irrigation mains), conduits, transmission lines, and appurtenances of Public Utilities" (as defined in the Public Utilities Act of the State of Califomia) and those of private industry, business, or individuals solely for their own use or for use of their tenants; and storm drains, sanitary sewer, street lighting. traffic signal systems. duct banks. telephone cable, transmission cables, and completely buried structures.
UTILITIES TNDICATED ON DRAWINGS:
l. Indicated utilities are based upon the information provided by the utility company to the Engineer; and the accuracy and
completeness ofthe utilities shown is not guaranteed.
2. The depth indicated in profile, unless a specific elevation is shown. is based on general practice and is not guaranteed at any specific location.
3. No service connections are shown on the Drawings. Contractor to determine the exact location of all utilities and their service connections. All costs to be included in bid items provided on Bidding Sheet, and no additional compaction will be made.
C. FIELD LOCATING:
l. Contractor shall have utility companies field locate their utilities prior to consl.ruction.
2. Where required, field location by Contractor forces shall be included in the contract price for which such work is appurtenant to and no additional allowance will be made therefor.
3. The Contractor shall make his own investigation as to the location and type of existing utilities and their appurtenances and service connections which may be affected by the contract work. and shall notiry the City as to any utility located by him which has been incorrectly shown or omitted from the drawings.
D, UTILITIES ON PLANS AND NOT TN CONFLICT:
B
G \2018\ l8{2 I nsp€c Division 2
'
fications\Drv 2 docx
2 Section 02620 - 3
Existing Underground Utilities
SPECIAL WATER/SEWER CROSSINGS:
l. At the locations shown on the plans or if the vertical separation between the outside of the sewer pipe and the outside of existing water pipes at crossings is less than one ( I ) foot, and when directed by the Ciry. the Contractor shall provide the construction required per the detail shown on the plans and per the State Health Department Water/Sewer Special Construction Requirements. The special construction will be deleted at locations shown if the venical separation is I tbot or greater.
2. The City hereby reserves the right to increase or decrease this item from the quanrity shown on the Proposal forms without altering the unit price bid per each. Payment will be made in accordance with the unit bid price provided on the Bidding Sheet: in the event no item for said special construction work is designated on the Bidding Sheet. Contractor shall be paid under the "Extra Work" provisions of the Contract Appendix.
RELOCATION OF UTILITIES BY THE CONTRACTOR FOR HIS
OWN CONVENIENCE: The temporary relocation or the alteration of any utility desired by the Contractor solely for his own convenience in the performance ofthe contract work, to a position or condition other than that provided for in the specifications or shown on the drawings. shall be the Contractor's own responsibility. and he shall make all arrangements with the property owners regarding such work. Any costs of such work for the Contractor's own convenience shall be absorbed in the unit prices or included in the lump sum amounts bid for the various contract items.
UTILITY CONFLICTS WITH PROPOSED IMPROVEMENTS
l. Ifa utility, whether shown on the plans or not. should intersect the proposed improvement at grade anywhere along the line of the improvement, the Contractor shall immediately notili rhe City.
2. Contractor shall notify the City in writing. stating the nature ofthe conflict, location b1' schedule, sheet number. name of the street or location ofeasement and the station at which the conflict occurred.
F
G
G \20 I 8\ I 8-021nspccr ficalrons\Dr v 2 docx Division 2 Where utilities cross or parallel the pipeline trench but do not conflict with the permanent work to be constructed, the Contractor shall protect the utility in place unless otherwise indicated on the p lans.
Unless otherwise provided in the specifications, lull compensation for crossing or paralleling of utilities shown on the plans shall be included in the contract unit price for which such work is appurtenant thereto and no additional allowance will be made therefor.
E.
3 S€ction 02620 - 4
Existing Underground Utilities
The City will, within a reasonable time, make the necessary arrangements to resolve the conflict.
Completion of any required "gap" after the resolution of a conflict shall not be just cause for additional compensation. Such completion of the "gap" shall be started within 72 hours after the Contractor has been notified of resolution of the conflict and completed in a workmanlike manner within reasonable time thereafter.
When directed or approved by the City, changes in line or grade of any structure being built may be made in order to avoid utilities.
Any additional costs because of such changes will be paid for as "Extra Work".
When a utility shown on the plans conflicts with the proposed improvements, the City will arrange for the relocation or alteration of said utility or require the Contractor to do same as 'Extra Work".
Work required in connection with unknown utilities will be performed and paid for as specified in the following paragraphs.
UNKNOWN UTILITIES DISCLOSED DURING CONTRACT WORK:
In the event that a utility is disclosed or installed subsequent to the award ofcontract, such utility not being indicated on the drawings. the alteration. relocation or proper support and protection shall be done and paid for as follows:
l. When said utility is found to occupy the space required to be occupied by a pan ofthe permanent works to be constructed under the Contract, the City will arrange for the relocation or alteration of said utility, or require the Contractor to do same as "Extra Work".
2. When the said utility is found to lie parallel to lhe permanent work and within the trench prism defined by the minimum allowable trench excavation consistent with safety and the rules. orders and regulations of local, Stare and Federal agencies having jurisdiction; the City will arrange for the relocation. protection or alteration of said utility, or require the Contractor to do same as "Extra Work".
3. When said utiliry is more or less parallel with, and any portion of it does not lie within the trench prism specified hereinabove. the Contractor shall advise the City thereof, and in cooperation with the City ofthe utility, provide and place the necessary support, if any. for proper protection to ensure continuous and safe operation of the utilify. All costs of such work shall be bome by the Contractor.
4. Utilities found to cross the excavation but not intercepting the permanent works to be constructed, then the Contractor will be required to protect the existing facility in place and construct the proposed facility under the unknown utility.
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H
Division 2
4. G u0 l8\l 8-02 I nspecrfi€ations\Drv 2.docx
Section 02620 - 5
Existing Underground Utilities
Compensation for such crossings will be at a unit price per each in accordance with the proposal therefor. The number of such crossings is estimated and the City hereby expressly reserves the right to add to the number shown or decrease from the number shown or to totally delete the item for unknown utility crossings at no change in the unit price per each. The time extension for such crossings shall be determined by the City and shall be added t o the total time for completion allowed and for which no liquidated damages will be assessed.
Upon disclosing a utility in the course of excavation that was not indicated on the drawings or marked in the field, the Contractor shall protect it in place. However, he shall immediately investigate if it is abandoned. The Contractor will be compensated at the bid unit price for unknown utility crossings only for the initial crossing ofabandoned lines; and only ifhe did protect the abandoned utility in place.
RESPONSIBILITY OF THE CONTRACTOR:
l The Contractor shall be responsible fbr all costs for the repair of any and all damage to the contract work or to any utility (whether previously known or disclosed during the work), as may be caused by his operations.
2. Utilities not shown on the drawings to be relocated or altered by others, shall be maintained in place by the Contractor.
3. At the completion of the contract work, the Contractor will leave all utilities and appunenances in a condition satisfactory to the utilitv owners and the Ciw.
I.O5 PROTECTION OF FACILITIES OTHER THAN UTILITIES
Contractor shall protect in place or remove and replace to original condition all existing faciliries.
It shall be the Contractor's responsibiliry to familiarize himself with the conditions of proposed work and to identifr by field investigation those features. whether or not shown on the plans, which require removal and replacement or protection in place These features include, but are not limited to, fences, cross gutters, roads, sidewalks, driveways, curbs and gutters. power poles, signs, drainage structures, trees, landscaping, etc.
END OF SECTION 02620
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G \20 I 8\ I 842 I nspec r ficalrons\Drv 2 docx Division 2 I
Section 02622 - I
Polyvinyl Chloride (PVC) Pressure Pipe
SECTION 02622
POLYVINYL CHLORIDE (PVC) PRESSURE PIPE
PART IGENERAL
I -O I SCOPE OF WORK
A. Furnish all labor, materials, equipment and incidentals required and install and test polyvinyl chloride (PVC) water pipe and fittings. complete as shown on the Drawings and as specified herein.
B. Pipe or piping refers to all pipe, fittings, material and appurtenances required to construct PVC water pipe complete. in place.
I.O2 RELATED WORK
A. Earthwork is included in Section 02200.
B. Trenching, backfilling and compacting is included in Section 02221 .
C. Granular fill material is included in Section 02230.
I.O3 SUBMITTALS
A. Submit. in accordance with Section 01300 Submittals, and within 30 days of the Effective Date ofthe Agreement, the name ofthe pipe and fitting manufacturers and a list of materials to be furnished by each manufacturer. Also, include information on local representative for each manufacturer. if product is sold through a distributor.
B. Shop Drawings including piping layouts and schedules shall include dimensioning. fittings, types and locations of valves and appurtenances, joint details, methods and location of supports. anchorage, gasket material, grade of material and all other pertinent technical information for all items to be furnished.
C. Prior to each shipment of pipe, certified test reports that the pipe for this Contract was manufactured and tested in accordance with the ASTM and AWWA Standards specified herein shall be submitted.
].04 REFERENCESTANDARDS
A. American Society for Testing and Materials (ASTM)
G:U0l 8\18-02 I nspecrficarions\Drv 2.docx Division 2
Section 02622 - 2
Polyvinyl Chloride (PVC) Pressure Pipe
ASTM D I 784 - Standard Specification for Rigid Poly Vinyl Chloride (PVC) Compounds and Chlorinated Poly Vinyl Chloride (CPVC) Compounds.
ASTM D2241 - Standard Specification for Poly Vinyl Chloride (PVC) Pressure-Rated Pipe (SDR Series).
ASTM D3 139 - Standard Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals.
4. ASTM F477 - Standard Specification for Elastomeric Seals for Joining Plastic Pipe.
B. American Water Works Association (AWWA)
l. AWWA Cl l0 - Ductile-lron and Gray-lron Fittings, 3" through 48" (75mm through I 3l9mm ) for Water.
2. AWWA C I I I - Rubber-Gasket Joints for Ductile-lron Pressure Pipe and Fittings.
3. AWWA C600
Appurtenances.
Installation ol Ductile-lron Water Mains and their
4. AWWA C-605 - Underground Installation of Polyvinyl Chloride (PVC) Pressure Pipe and Fittings for Water.
5. AWWA C65l - Disinfecting Water Mains.
6. AWWA C900 - Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4-in through l2-in for Water Distribution7. AWWA C905 - Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings l4-in through 48-in for Water Transmission and Distribution. 8- AWWA M-23 - Manual of Water Supply Practices PVC Pipe, Design and Installation.
C. National Sanitation Foundation (NSF)
l. Standard No. l4 - Plastic Piping Components and Related Materials.
2. Standard No. 6l - Drinking Water System Components - Health Effects 2 3
G:\201 8\ I 8-02 I nspecr iicatjons\Dv 2 docx Division 2 Section 02622 - 3
Polyvinyl Chloride (PVC) Pressure Pipe
D. Where reference is made to one of the above standards. the revision in effect at the time of bid opening shall apply.
I.O5 QUALITY ASSURANCE
B. Inspections of the pipe may also be made by the Engineer or other representatives of the Owner after delivery. The pipe shall be subject to rejection at any time on account of failure to meet any of the requirements specified herein, even though sample pipes may have been accepled as satisfactory at the place of manufacture. Pipe rejected after delivery shall be marked for identification and shall be removed from thejob at once.
1.06 SYSTEMDESCRIPTION
B. Note information in pipe schedule on Drawings, if any and in this Section. especially conceming pressures, minimum thickness, etc. In case ofa conflict. information given in the pipe schedule shall govern.
C. Contractor is responsible for compatibility between pipe materials, fittings and appurtenances.
D. Unless otherwise noted. PVC pipe systems shall be designed for the following condition(s).
I . Class: 150
2. System:
3. Pressure:
Water
ll0
t50
4. Temperature Range:
a. Operating
b. Testing:
G \201 8\ I 8{21nspec ifications\Div 2 docx
40-80 Degrees F
Division 2
A. AII PVC water and sewer pipe shall be from a single manufacturer. The supplier shall be responsible for the provisions of all test requirements specified in ASTM D3034 and NSF Standard No. 14 as applicable. In addition. all PVC pipe to be installed under this Contract may be inspected at the plant for compliance with this Section by an independent testing laboratory provided by the Owner. The Contractor shall require the manufacturer's cooperation in these inspections.
A. The equipment and materials specified herein are intended to be of standard types for use in transponing potable water and reclaimed water.
Section 02622 - 4
Polyvinyl Chloride (PVC) Pressure Pipe
1.O7 DELIVERY. STORAGE AND HANDLING
A. All items shall be bundled or packaged in such a manner as to provide adequate protection of the ends during transportation to the site. Any pipe damaged in shipment shall be replaced as directed by the Engineer.
B. PVC items deteriorate in sunlight and are slightly brittle, especially at lower temperatures, so care shall be taken in loading, transporting and unloading items to prevent injury to the items. All items shall be examined before installation and no piece shall be installed which is found to be defective. Handling and installation of pipe and fittings shall be in accordance with the manufacturer's instructions. referenced standards and as specified herein.
C. Any pipe or fitting showing a crack or which has received a blow that may have caused an incident fracture, even though no such fracture can be seen. shall be marked as rejected and removed at once from the work.
D. Any gouges or scratches that extend l0 percent or more into the pipe wall shall be cause for rejection of that pipe. The undamaged portion may cut off and used.
Rejected materials shall be clearly marked as rejected, segregated and removed from the site.
E. While stored, pipe shall be adequately supponed from below at not more than 3-ft intervals to prevent deformation. The pipe shall be stored in stacks no higher than that given in the following table:
8 or less
12 to 2l
24 to 30
33 to 48
F. Pipe and fittings shall be stored in a manner which will keep them at ambient outdoor temperatures and out of the sunlight or delivered to the site so that no pipe is exposed to sunlight for more than 60 days. Temporary shading as required to meet this requirement shall be provided. Simple covering of the pipe and fittings which allows temperature buildup or direct or indirect sunlight will not be permitted.
G. Ifany defective item is discovered after it has been installed, it shall be removed and replaced with an exact replacement item in a satisfactory manner by the Contractor, at the Contractor's own expense. All pipe and fittings shall be thoroughly cleaned before installation and the interior shall be kept clean until testing.
Division 2
Pipc Diameter ( inches ) Max. No. of Rows Stacked
5 4
3 2
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H. In handling the items, use special devices and methods as required to achieve the results specified herein. No un-cushioned devices shall be used in handling the item.
PART 2 PRODUCTS
2.OI POLWINYL CHLORIDE (PVC) PIPE AND FITTINGS
A. PVC pressure pipe sized 4 through l2-in shall conform to the requirements of AWWA C900. All piping shall be Class 165 with a Dimension Ratio of l8 or class 200 with a Dimension Ratio of l4 as indicated on the drawings. The pipe shall be PVC ll20 made from PVC compounds Class 12454-,{ or 12454-8 as defined in ASTM D1784. Each pipe length shall be marked with the manufacturer's name or trademark, size. material code, pressure class, AWWA designation number and seal of test agency that verified pipe material for potable water service.
B. PVC pressure pipe sizes l4 through 48-in shall conform to the requirements of AWWA C905 PVC pressure pipe sizes l4 through 36-in shall conform to the requirements of ASTM D2241. The pipe shall be made from PVC compounds Class 12454-A or 12454-8 as defined in ASTM D1784. Each pipe length shall be marked with the manufacturer's name or trademark. size, material code. pressure class. AWWA reference and seal of test agency that verified pipe material for potable water service.
C. PVC pipe and fittings shall have bell and spigot push-on joints. The bell shall consist of an integral wall section with a solid cross-section elastomeric gasket securely locked in place to prevent displacement during assembly. Installation of elastomeric gasketed joints and performance of the joint shall conform to ASTM F477, ASTM D3139. Joint lubricants shall be as recommended by the manufacturer and meet all requirements of NSF6I .
D. All fittings and accessories for waterlines and sewers shall have bell and/or spigot configurations compatible with the pipe.
E. All fittings for water mains shall be cast or ductile iron conforming to AWWA C I l0 or AWWA C 153 for mechanical joints. All adapton, fittings and transition gaskets necessary to connect cast or ductile iron fittings to PVC shall be furnished. Ductile iron fittings shall be cement mortar lined.
F. PVC fittings shall meet the requirements of AWWA C900 and be of the same (or higher) pressure rating as the pipeline.
G. Force mains shall be green in color. Water lines shall be blue in color.
Reclaimed water shall be purple in color.
Division 2
Seclion 02622 - 5
Polyvinyl Chloride (PVC) Pressure Pipe
C \201 8\l 8-02 I nSpecrfi€arrons\Drv 2 docx
Section 02622 - 6
Polyvinyl Chloride (PVC) Pressure Pipe
Use AWG No. 8 stranded copper wire with high molecular weight polyethylene (HMW,ryE) insulation specifically designed for direct burial in corrosive soil or water. Polyethylene insulation shall conform to ASTM D 1248. Type l, Class C.
Wires with cut or damaged insulation are not acceptable and replacement of the entire wire which has been damaged will be required at the Contractor's expense.
PART 3 EXECUTION
3.OI INSTALLATION OF PVC PIPE AND FITTINGS
A. No single piece of pipe shall be laid unless it is straight- The centerline of the pipe shall not deviate from a straight line drawn between the centers of the openings at the ends of the pipe by more than l/ l6-in per foot of length. If a piece ofpipe fails to meet this requirement, check for
straightness, it shall be rejected and removed from the site. Laying instructions of the manufacturer shal I be explicitly followed.
B. If any defective pipe is discovered after it has been installed, it shall be removed and replaced with a sound pipe in a satisfactory manner at no additional cost to the Owner. AII pipe and fittings shall be thoroughly cleaned before installation, shall be kept clean until they are used in the work and when laid. shall conform to the Iines and grades required. PVC pipe and fittings shall be installed in accordance with requirements of the manufacturer. ASTM D2321 and AWWA C605 or as otherwise provided herein.
C. As soon as the excavation is complete to normal grade ofthe bottom ofthe trench. bedding shall be placed, compacted and graded to provide firm. uniform and continuous support for the pipe. Bell holes shall be excavated so that only the barrel ofthe pipe bears upon the bedding. The pipe shall be laid accurately to the lines and grades indicated on the Drawings. Blocking under the pipe will not be permitted. Bedding shall be placed evenly on each side of the pipe to mid-diameter and hand tools shall be used to force the bedding under the haunches of the pipe and into the bell holes to give firm continuous support for the pipe. Bedding shall then be placed to l2-in above the top of the pipe. The initial 3-ft of backfill above the bedding shall be placed in l-ft layers and carefully compacted. Generally the compaction shall be done evenly on each side ofthe pipe and compaction equipment shall not be operated directly over the pipe until sufficient backfill has been placed to ensure that such compaction equipment will not have a damaging effect on the pipe. Equipment used in compacting the G \201 8\ I 8-021 nspec' ficarrons\ Drv 2 docx Division 2 J. Where restrained joints are shown on the Drawings restraining glands shall be installed. Restraining glands for PVC pipe shall conform to AWWA Cl I I and be Megalug Series 2200 PV by EBAA Iron Sales Inc or equal.
Section 02622 - 7
Polyvinyl Chloride (PVC) Pressure Pipe
initial 3-ft of backfill shall be approved by the pipe manufacturer's representative prior to use.
D. All piping shall be sound and clean before installation. When installation is not in progress. including lunchtime. the open ends of the pipe shall be closed by watertight plug or other approved means. Good alignment shall be preserved during installation. The deflection atjoints shall not exceed that recommended by manufacturer. Fittings. in addition to those shown on the Drawings. shall be provided, if required, in crossing utilities that may be encountered upon opening the trench.
E. When cutting pipe is required, the cutting shall be done by machine, leaving a smooth cut at right angles to the axis ofthe pipe. Cut ends ofpipe to be used with a bell shall be beveled to conform to the manufactured spigot end and a reference mark made at the same distance from the pipe end as measured from a factory marked end from the same manufacturer.
F. The Engineer may examine each bell and spigot end to determine whether any preformed joint has been damaged prior to installation. Any pipe having defective joint surfaces shall be rejected, marked as such and immediately removed from thejob site.
G. Each length of the pipe shall have the assembly mark aligned with the pipe previously laid and held securely until enough backfill has been placed to hold the pipe in place. Joints shall not be "pulled" or "cramped".
H. Before any joint is made. the pipe shall be checked to assure that a close joint with the next adjoining pipe has been maintained and that the inverts are matched and conform to the required grade. The pipe shall not be driven down to grade by striking it.
l. Precautions shall be taken to preYent flotation ofthe pipe in the trench.
J. When moveable trench bracing such as trench boxes, moveable sheeting, shoring or plates are used to support the sides ofthe trench. care shall be taken in placing and moving the boxes or supporting bracing to prevent movement ofthe pipe, or disturbance of the pipe bedding and the backfill. Trench boxes. moveable sheeting, shoring or plates shall not be allowed to extend below top of the pipe.
If trench boxes, moveable sheeting. shoring or plates have been installed below the top of pipe, they shall be moved slowly taking care not to disturb pipe. bedding or backfill. As trench boxes, moveable sheeting' shoring or plates are moved, pipe bedding shall be placed to fill any voids created and the backfill shall be recompacted to provide uniform side support for the pipe.
K. Restrained joints shall be installed where shown on the Drawings.
C \2018\ 18421nspec'ficatrons\Dv 2 docx Division 2
Section 02622 - 8
Polyvinyl Chloride (PVC) Pressure Pipe
3.02 JOINTING PVC PIPE (Push on type)
A. Joints shall be made in strict accordance with the manufacturer's instructions.
Pipe shall be laid with bell ends looking ahead. A rubber gasket shall be inserted in the groove of the bell end of the pipe and the joint surfaces cleaned and an approved lubricant applied in accordance with the manufacturer's recommendations. The plain end ofthe pipe to be installed shall then be inserted into the bell of the pipe to which it is to be joined and when in alignment pushed home with a come-along or by other means. Check that the reference mark on the spigot end is flush with the end of the bell.
3.03 JOTNTING MECHANICAL JOINT FITTINCS
A. Mechanical joints aI valves, fittings and where designated shall be in accordance with the AWWA Cl I I and the instructions of the manufacturer. PVC water pipe and tittings shall be jointed in accordance with the recommendations of the latest ASTM Standards and detailed instructions ofthe manufacturer. Suitable PVC to cast iron adaptors shall be installed prior to insralling fittings. PVC beveled spigot shall be cut flush prior to insertion in mechanical joint pipe. To assemble the joints in the field. thoroughly clean the joint surfaces and rubber gasket wirh soapy water before tightening the bolts. Bolts shall be tight to the specified torques. Under no condition shall extension wrenches or pipe over handle of ordinary ratchet wrench be used to secure greater leverage.
3.0.1 JOINTING POI-YVINYL CHLORIDE (PVC) SEWER PIPF: AND FITTINGS A. The pipe manufacturer shall furnish information and supervise the installation of at least the first five joints. The pipe manufacturer shall be available on site for lday to supervise and inspect installation.
3.05 FILLING AND TESTING
A. After installation. the pipe shall be tested for compliance as specifigd herein.
Furnish all necessary equipment and labor for the hydrostatic pressure test on the pipelines.
C. Pressure pipelines shall be subjected to a hydrostatic pressure of 150 psig. This test pressure shall be maintained for a minimum of 2 hours. The hydrostatic C U0l8\ l8{21nspecrficarDns\Drv : docx Division 2
B. Submit detailed test procedures and method for Engineer's review. In general. testing shall be conducted in accordance with AWWA C605. The method and procedures for performing the hydrostatic pressure test shall be approved by the Engineer. Submit the plan for testing ro the Engineer at least t0 days before starting a test.
Section 02622 - I
Polyvinyl Chloride (PVC) Pressure Pipe
testing allowances shall not exceed those indicated in AWWA C605. Provide suitable restrained bulkheads as required to complete the hydrostatic testing specified.
D. Contractor shall make any taps and fumish all necessary caps. plugs etc. as may be required in conjunction with performing the testing.
E. Graviry pipelines shall be subjected to hydrostatic pressure test as specified in AWWA C605.
F. All valves and valve boxes shall be properly located and installed and operable prior to testing. Bulkheads shall be provided with a sufficient number of outlets for filling and draining the line and for venting air.
G. Hydrostatic pressure tests shall conlorm to S€ction 7.3 of AWWA C605. Furnish gauges. meters. pressure pumps and other equipment needed to fill the line slowly and perform the required hydrostatic pressure tests.
H. The Owner will provide a source of supply from the existing potable water and reclaimed water distribution system for Contractor's use in lilling the lines. An air break shall be maintained at all times between the Owner's distribution system and the Contractor's equipment to prevent cross-connection. The line shall be slowly filled with water and the specified test pressure shall be maintained in the pipe for the entire test period by means of a pump fumished by the Contractor.
Provide accurate means for measuring the quantity of makeup water required to maintain this pressure.
I. The Owner shall supply, at no cost to the Contractor, a maximum quantity of water equal to ll0 percent ofthe volume ofthe pipelines for testing. Additional water required by the Contractor will be provided at standard billing rates for the volume required. The line shall be slowly filled with water and the specified test pressure shall be maintained in the pipe for the entire test period by means of a pump furnished by the Contractor. Provide accurate means for measuring the quantity ofmakeup water required to maintain this pressure.
J. Duration of pressure test shall not be less than 2 hours. All leaks evident at the surface shall be repaired and leakage eliminated regardless ofthe total leakage as shown by test. Lines which fail to meet tests shall be repaired and retested as necessary until test requirements are complied with. Defective materials, pipes' valves and accessories shall be removed and replaced.
3.06 FLUSHING AND CHLORINATION OF PIPELINES
A. Before being placed in service and prior to hydrostatic testing, all new water pipelines shall be chlorinated in accordance with AWWA C651. The procedure shall be approved by the Engineer in advance.
G \2018\ 18{21nspccrficanons\Drv 2 docr Division 2
Section 02622 - l0
Polyvinyl Chloride (PVC) Pressure Pipe
B. The location of the chlorination and sampling points will be determined by the Engineer in the field. Taps for chlorination and sampling shall be installed by the Contractor. Uncover and backfill the taps as required.
C. The general procedure for chlorination shall be first to flush all dirty or discolored water from the pipeline. The flushing velocity shall be a minimum of 3 filsec and continue until at least three changes of water have passed through the segment being flushed. Flushing operations shall be conducted without causing erosion. damage. nuisance or interruption of traffic and comply with all regulatory requirements. Then introduce chlorine in approved dosages through a tap at one end, while water is being withdrawn at the other end of the line. The concentration and residence time of the chlorine solution in the pipeline will depend on the type of disinfection method used, as described in AWWA 65 I .
D. Following the chlorination period, all treated warer shall be flushed from the lines at their extremities and replaced with water from the distribution system. All treated water flushed from the lines shall be disposed by discharging to the nearest sanitary sewer or other approved means. No discharge to any storm sewer or natural water courses will be allowed. Bacteriological sampling and analysis ofthe replacement water may then be made by the Engineer in full accordance with AWWA C65l . Rechlorination will be required. if necessary and the line shall not be placed in service until the requirements ofthe State and Local Public Health Department are met.
E. Special disinfecting procedures shall be used in connections to existing mains and where the method outlined above is not practical.
3.07 TRACER WIRE
A. Prior to backfill, install tracer wire on top ofpipe and secure in place with 2-inch wide plastic adhesive tape at maximum l0-foot intervals. Run tracer wire continuously along pipe and terminate in adjacent valve boxes for buried assemblies or buried valves. Where buried splices occur, use an electrical splicing kit consisting of a split bolt connector. mold, and two-part encapsulating epoxy resin such as Scotchcast, or Owner approved equal. Provide 24 inches of coiled wire at access points for attachment of pipe locating equipment. Each installed run of pipe shall be capable of being located using the tracer wire.
Protect wire insulation from damage during installation and backfilling. Wire insulation that is broken. cut, or damaged shall be replaced at the Contractor,s expense.
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END OF SECTION 02622
Division 2
CONCRETE
DIVISION 3
DIVISION.-]
TABLE OF CONTT]NTS
SECTION
03 I l0 Concrete Formwork
03210 Concrete Reinforcement...
03300 Cast-in-PlaceConcrete
03480 Precast Concrete Vaults and Manholes....
PAGE
03il0-l
03210-l
03300- I
03480- l
Section 03 I l0 - I
Concrete Formwork
SECTION 03IlO
CONCRETE FORMWORK
PART I - GENERAL
I.OI SCOPE
The work includes the fumishing, installing and removing of forms for all cast-in-place concrete work as shown and noted on the drawings and specified herein.
I,O2 CODES AND STANDARDS
A. BUILDING CODE
l. California Building Code, latest adopted edition, Chapter 19, Concrete.
B. AMERICAN CONCRETE INSTITUTE (ACI):
l. ACI-301: "Specifications for Structural Concrete"
2. ACI-SP-4: "Formwork for Concrete"
3. ACI-l [7: "Standard Tolerance for Concrete Construction and Materials"
4. ACI-318: "Building Code Requirements for Reinforced Concrete"
5. ACI-347: "Guide to Formwork for Concrete"
C. AMERICAN PLYWOOD ASSOCIATION (APA):
I . APA Grade - Trademark
2. Concrete Forming, V345
D. AMERICAN WOOD COLJNCIL (AWS):
l. National Design Specification for Wood Construction (NDS), latest edition.
E. WEST COAST LUMBER INSPECTION BUREAU:
I . Standard Grading and Dressing Rule No. l6
C l0l 8r I 8-0217 sp.crfcanonsrDrv I dd\ Division 3
Except as modified by the requirements specified herein and/or the details on the drawings. all work included in this section shall conform to, and comply with, the applicable provisions of the latest edition of following codes and standards: which shall form a part of this specification to the extent indicated by the references thereto:
Section 031 I0 - 2
Concrete Formwork
F. U.S. DEPARTMENT OF PRODUCT STANDARDS:
l. PS-l for Construction and Industrial Plywood, latest edition I.O3 RELATED SECTIONS
SECTION 02200: Earthwork and Site Preparation
SECTION 032 I 0: Concrete Reinforcement
SECTION 03300: Cast-in-Place Concrete
I.O4 SUBMITTALS
A. GENERAL: Shop drawings and submittals shall be in accordance with Section 01340.
B. LISTING OF REQUIRED SUBMITTALS: Submittals shall be in accordance with the latest edition of ACI 301, Section 2 including but not limited to:
l. Form facing materials
2. Construction and contraction joints (including location and detail)
3. Concrete strength testing for formwork removal
Reshoring and backshoring procedure (signed and sealed by a registered engineer)
4. Placement access window layout
5. Formwork release agent
6. Shop drawings (signed and sealed by a registered engineer) Calculations for formwork, shoring, reshoring and backshoring (signed and sealed by a registered engineer)
7. Form ties manufacturer's data sheet
8. Expansion joints manufacturer's data sheet
9. Waterstops manufacturer's data sheet
A
B
C
Gr \2018\ l8-O2lnspecillcat,ons\Drr I dex Division 3
Section 03 I l0 - 3
Concrete Formwork
C. ADDITIONALFORMWORKSUBMITTALREQUIREMENTS
l. Information on the Contractor's proposed forming system shall be submitted in detail to the Engineer for review and approval.
2. Only forming systems by manufacturers with a minimum of five years' experience shall be considered. such as PERI. DOKA. or Engineer approved equal, with plywood or UHMWPE panels. (Ultra High Molecular Weight Polyethylene)
I.O5 ARRANGEMENT
Arrange formwork to allow proper erection sequence and to permit form removal without damage to concrete. Form system shall include appropriate number' spacing' and size windows for placing and vibrating concrete.
I.06 INSPECTIONNOTII-ICATION
Before placing concrete, and after placing reinforcing steel in forms. notify the Engineer and lnspector. Make notification at least two working days in advance of placing concrete to permit arrangements for inspection.
I.O7 TOLERANCES
Variation from plumb in lines and surfaces of columns. walls' etc.... shall not exceed l/8" in l0 feet
Variation in linear building lines fiom established position in plan and related position of columns, piers. or walls shall not exceed l12" in any bay of20 feet.
I.O8 REJECTION OF DEF'ECTIVE WORK DUE TO IMPROPER FORMS Any movement or bellying of forms during construction or variations in excess of the tolirances specified will be considered just cause for the removal of such forms and. in addition- the concrete work so affected. Reconstruction offorms and new concrete to proper line and grade (including disposal of rejected materials) shall be furnished at no additional cost to the Owner.
PART 2 - PRODUCI'S
2.OI MATERIALS
Earth forms may be used for footings only where the soil is firm and stable and the concrete will not be exposed. where ea(h forms are to be used. excavations shall be cut neat and accurate to size for placing ofconcrete directly against the excavation.
C \10 I 8\ I 8-.01 I Tsp.crficatrons\Dtr I de\ Division 3 Section 03 I l0 - 4
Concrete Formwork
Boards for unexposed concrete, not otherwise scheduled or specified, shall be Douglas Fir. conforming to the "Standard Crading and Dressing Rules No. 16". latest edition. olthe West Coast Lumber lnspection Bureau. Boards shall be S4S. Contractor at his option may use plywood for forms in lieu of boards. Plywood, if used. shall be "B-B Plyform Class I Exterior" grade, conforming to U.S. Product Standards PS l-83, 3/4" minimum thickness.
Plywood used for exposed concrete shall be a high density overlay type especially manufactured for form work.
A FORM TIES AND SPREADERS: Standard metal form clamp assembly. of type acting as spreaders and leaving no metal within l" of concrete face.
Inner tie rod shall be left in concrete when lorms are removed. Submit samples and manufacturer's specifications to Engineer for review and approval by the Owner before using. Wire ties or wood spreaders will not be permitted.
FORM COATINC: Non-grain raising and non-staining type that will nor leave residual matter on surface of concrete or adversely affect proper bonding of subsequent application of other material applied to concrete surface. Diesel fuel and/or coatings containing mineral oils or other nondrying ingredients are not being permitted. Acceptable products include. but are nol limited to the following:
Non-Crete Company; Nox-Crete Form Coating
Arcal Chemical Corp.: Arcal 80
Industrial Synthetics Co.; Synthex
EXPANSION JOINT FILLER: Premolded expansion joint filler shall conform to ASTM D994. Dl 75 I or D1752.
D. CONSTRUCTION. EXPANSION. AND CONTRACTION JOINTS:
Unless otherwise specified or permitted. locate and detail construction joints to follouing requirements:
a. Locate construction joints within middle third of spans of slabs, beams. and girders. When a beam intersects a girder within this region, offset joint in girder a distance equal to or greater than twice width of beam:
b. Locate joints in walls and columns at underside of slabs, beams, or girders and at tops of footings or slabs: and
c. Make joints perpendicular to main reinlbrcement.
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C \2018\18-o2lnsFcificarioB'Dr! I d@x Division 3
Section 03 I l0 - 5
Concrete Formu'ork
Provide keyways where indicated in the Drawings. Unless otherwtse specified, longitudinal keyways indicated in the Drawings shall be a minimum of l-l/2 in. deep in joints in walls and between walls and slabs or footings.
Provide construction, expansion, and contraction joints where indicated in the Drawings. Submit for acceptance details and locations ofconstruction. expansion. and contraction joints differing from those indicated in the Drawings.
Design formwork to accommodate waterstop materials. Locate waterstop in construction joints where indicated in the Drawings. Use waterstop with a maximum practical length to create minimum number ofsplices.
PART 3 - EXECUTION
3.O I GENERAL
The engineering and construction of all formwork, shoring and bracing shall be carried out by and under the direction of the Contractor, who shall be responsible for the engineering' construction, maintenance. and safety ofall formwork during the entire construction period.
The design of all concrete forms, flalsework, and shoring shall be the responsibilitv of the Conrractor and the design and installation ofthese items shall comply with all local. State, and Federal regulations.
The fbrmwork shalt be designed for the loads and lateral pressure outlined in Chapter 2 of ACI 347. Latest Edition.
3.02 FORMS AND ACCESSORIES
2 3
GENERAL: Forms shall be so constructed that the finished concrete will conform to the shapes. lines. grades, and dimensions indicated on the Drawings. lt is intended that the surface ofthe concrete after stripping shall present a smooth' hard. and dense finish that will require a minimum amount of finishing. Sufficient number of forms shall be provided so that the work may be prosecuted rapidly and present a uniform appearance in form pattems and finish. Forms shall be clean and free from all dirt' debris. concrete. etc. and shall be coated with an acceptable form release agent if required, prior to use or reuse.
B. BUILT-UP PLYWOOD FORMS:
Builrup plywood forms may be substituted for a prefabricated forming system subject to the following minimum requirements: full sized (4 foot by C '201E\l&0llISF.'nc ionnD! 3 dlxr Division 3
.1.
Section 031 l0 - 6
Concrete Formwork
8 foot) plywood sheets must be used except where smaller pieces will cover an entire area.
Plywood sheets shall be S-ply, 3/4 inch nominal, made with 100 percent waterproof adhesive, and the finish surface shall be coated or overlaid with a surface which is impervious to water and the alkaline calcium and sodium hydroxide ofcement.
Studding shall be not less than 2 inch by 4 inch lumber spaced at l6 inches or 24 inches on center.
a. Closer spacing may be required depending upon the strength requirements ofthe forms. in order to prevent any bulging surfaces on the faces of finished concrete work.
J
h
7 C.
a
Studs shall not impede the proper access to the required lorm windows for placing and vibrating the concrete.
6 Studding and wales shall contain no loose knots and shall be free of warps, cups. and bows.
The number of reuses of lbrms will depend upon the durability ofthe surface coating or overlay used. and the Contractor's ability to maintain the forms in a condition which will produce a llat. smooth. hard. dense finish on the concrete when stripped.
Altemate combinarion of plywood thickness and stud spacing may be submitted to the Engineer for review and acceptance.
STEEL OR STEEL FRAMED FORMS
Steel forms shall be rigidly constructed and adequately braced tbr minimum deflection ofthe finish surthce. The flnish surlace shall be flat without bows. cups, or dents.
2 Steel framed plywood forms shall be rigidly constructed and braced with joints fitting closely and smoothly.
Plywood paneling shall be 5-ply, 3/4 inch nominal; made with 100 percent waterproof adhesive and the finish surface shall be coated or overlaid with a surthce which is impervious to water and the alkaline calcium and sodium hydroxide of cement.
C ll)lli l8-0:l7sp(crficaroni Drt :r dc\ Division 3
4. Wales shall be formed of double 2 inch by 4 inch lumber as a minimum. 5 Section 03 I l0 - 7
Concrete Formwork
b. The number of reuses will depend upon the durability of the surface coating or overlay used.
Built-up plywood forms, as specified herein, may be used in conjunction with steel forms or steel framed plywood forms for special forming conditions such as corbels and forming around items which will project through the formsPLACEMENT ACCESS WINDOWS: Concrete formwork for walls. whether set vertically or sloped, shall include an adequate number and size of placement windows to provide sufficient access to place and vibrate concrete to avoid areas of incomplete consolidation. The window layout shall be submitted to the Owner for review and approval.
E. INCIDENTALS
Where not otherwise indicated on the Drawings, all extemal angles of walkways, slabs, walls, beams. columns, and openings shall have a 3/4 inch bevel fbrmed by utilizing a true dimensioned wood or solid plastic chamfer strip and extemal angles of walkways, walls, and slabs at expansion. contraction. and construction joints shall be a ll2 inch bevel fbrmed by utilizing a true dimensioned wood or solid plastic chamfer strip.
Reentrant angles may be left square.
Level strips shall be installed at the top ofall wall concrete placements to maintain a true line at all horizontal construction joints.
Keyways shall be constructed as indicated on the Drawings. Material for keyways shall be steel. plastic. or lumber treated with form coating, applied according to label directions.
Pipes, anchor bolts. steps. reglets, castings. and other inserts, as indicated on the Drawings or as required. shall be encased in the concrete. Dovetail anchors or ties shall be used in conjunction with the slots or insens for the various materials as specified under their respective sections and as may be necessary lor the required uork.
All exposed comers shall be chamfered J/4". unless shown otherwise on drawings. Provide molding in lbrms for all chamfering required. a
b
)
,l
O,2018\l&O2l7Sp.qfi c.noni\D\ 3 der Division 3
D.
J
Section 031 l0 - 8
Concrete Formwork
F'. BRACING AND ALIGNMENT OF FORMS
It shall be the Contractor's responsibility to provide alignment of forms which will permit installation, at proper location. of all structural embedded items or mechanical and electrical equipment and piping.
All formwork shall be securely braced. supported. tied down. or otherwise held in place to prevent any movement of formwork. Adequate provisions shall be made for uplift pressure, lateral bulging of forms, and deflection of forms for slabs and beams.
When a second lift is placed on hardened concrete. special precautions shall be taken in the form work at the top ofthe old lift and bottom ofthe new lift to prevent spreading, vertical or horizontal displacement of formsl and to prevent grout "bleeding" on finished concrete surfaces. Pipe stubs, anchor bolts. and other embedded items shall be set in the tbrms where required.
No concrete shall be placed until all forms have been thoroughly checked by the Contractor for alignment. level. strength, and to assure accurate location ofall mechanical and electrical inserts or other embedded items. Allcracks. openings, or offsets atjoints in the lormwork which are l/16 inch or larger shall be closed by tightening the forms or by filling with an acceptable crack filler.
G. FORM TIES
Form ties for the forming system selected shall be the cone-snap tie or flat bar type as manufactured by a recognized manufacturer ofconcrete forming equipment.
Forms shall be tied together at not less than 2 foor centers vertically and horizontally.
Wire ties or wood spreaders ofany form shall not be used. Ties shall be ofa type that will accurately tie. lock. and spread the forms.
Forms and ties shall be designed to withstand concrete pressures without. spreading or liRing olthe tbrms.
The form tie shall be of such design that when the forms are removed. no metals shall be within 3/4 inch ofanv surface.
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5 C 2018\ l8{ll7sF.rficatrons Dr! ld@r Division 3
1. H
Section 031 l0 - 9
Concrete Formwork
REMOVAL OF FORMS: Framing shall remain in place for the minimum time(s) indicated herein.
Vertical forms shall remain in place a minimum of 24 hours after the concrete is placed. lf. after 24 hours. the concrete has sufficient strength and hardness to resist surface or other damage. the vertical forms may be removed.
2. Other forms supporting concrete and shoring shall remain in place as follows:
il Sides of footings 24 hours minimum
b. Venical sides of beams, girders.
and similar members
Slabs. beams. and girders
48 hours minimum
until concrete strength reaches
the specified strength or until
shoring is installed
until concrete strength reaches
the specified strength
c
d. Shoring for slabs. beams, and
girders
J
c Wall bracing untilconcrete strength of the
beams and slabs laterally
supporting the wall reaches the
specified strength.
Forms shall not be removed from concrete which has been placed with outside ambient air temperature below 50 degrees F until the concrete has attained the specified strength (75% of 28-day compressive strength requirement or 3.000 psi minimum. whichever is greater) as determined by test cylinders stored in the field under equivalent conditions as the concrete structure. No heavy loading on green concrete will be permitted. Green concrete shall be defined as concrete with less than the specified strength.
Immediately after forms are removed. the surface of the concrete shall be carefully examined. and any irregularities in the surface shall be repaired and finished or removed and replaced as determined by the Engineer as specified hereinafter.
EN D OF SECTION 03 I I O
c ,2018\ I &o2l nsFoficat,ons\Dr I da\ Division 3
Section 03210 - I
Concrete Reinforcement
SECTION O32IO
CONCRETE REINFORCEMENT
PART I - GENERAL
I .O I SCOPE
The work includes the fumishing and installing of reinforcing steel for all cast-in-place concrete as shown and noted on the drawings and specified herein.
I.O2 RELATED SECTIONS
SECTION 022OO:
SECTION 03 I IO:
SECTION 033OO:
EARTHWORK AND SITE PREPARATION
CONCRETE FORMWORK
CAST.IN.PLACE CONCRETE
I.O3 CODES AND STANDARDS
Except as modified by the requirements specified herein and/or the details on the drawings. all w'ork included in this section shall confbrm to the applicable provisions ofthe tbllowing codes and standards:
A. CALIFORNIA BUILDING CODE. latest adopted edition. Chapter 19.
Concrete.
B. AMERICAN CONCRETE INSTITUTE (ACI). laresr edition of:
l. ACI-301 : "Specifications for Strucural Concrete"
2. ACI-318: "Building Code Requirements for Structural Concrete"
3. ACI-315: "Derails and Detailing Concrete Reinforcement"
4. ACI SP-66: *ACI Detailing Manual"
CONCRETE REINFORCING STEEL INSTITUTE (CRSI)
"Recommended Practice lor Placing Reinforcing Bars", latest edition.
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM):
The specifications and standards hereinafter referred to. latest edition.
C
D
G C0l6\l8-o2lnsp.c'fications\Dtr I dcr Division 3
B.
C.
Section 03210 - 2
Concrete Reinforcement
I.O4 SUBMITTALS
B
C
CENERAL: Shop drawings and submittals should be in accordance with Section 0l 340
LISTINC OF REQUIRED SUBMITTALS: Submittals shall be in
accordance with the latest edition ofACI 301. Section 3 including but not limited to:
l. Reinfbrcement manuflacturer's certificd test repon
2. Placing Drawings
3. Splices (and request to use splices not indicated in the drawings)
4. Mechanical Splices (and request to use mechanical splices not indicated in the drawings)
5. Request and procedure to field bend or straighten reinforcing bars partially embedded in concrete
6. Current CRSI Plant Certitlcation
7. Welding (including locations, procedure and AWS welder cenification)
8. Material storage and handling
ADDITIONAL REINFORCING STEEL SUBMITTAL
REQUIREMENTS:
l. Mill affidavits. stating the grades and physical and chemical properties of the reinforcing steel. and conformance with ASTM Specifications. shall be submitted to the Engineer for review and approval by the Owner before delivery ofthe steel to the job site.
2. Samples ofthe actual bars used for fabrication shall be delivered with the fabricated steel bars to the site for testing (minimum 48" long).
C t2018\ I &021nsp.cili€uoN\Drr 3 ddr Division 3
Section 03210 - 3
Concrete Reinforcement
I.O5 STORAGE
Reinforcing steel shall be transported to the building site, stored and covered in a manner which will insure that no damage shall occur to it from moisture. dirt, grease. or any other cause that might impair bond to concrete.
A sufficient supply of approved fabricated reinforcing steel shall be stored on the building site at all times to insure that there will be no delay ofthe work. ldentification ofsteel shall be maintained after bundles are broken.
I.06 CHF,CK FOR EMBEDDED ITF-MS
Contractor shall check project or contract architectural. structural, mechanical, and electrical drawings for anchors. inserts. conduits, sleeves. and any other items which are required to be cast in concrete. and shall make necessary provisions as required so that reinlorcing steel will not interfere with the placement of such embedded items.
PART 2. PRODUCTS
2.O I MATERIAT-S
REINI-'ORCINC BARS: New, deformed, billet steel bars conforming to ASTM A6l5 Grade 60 unless otherwise indicated. Deliver bars new and free from rust and mill scale in original bundles with mill tags intact.
WELDED WIRE FABRIC: New, welded steel wire fabric, conforming to ASTM A185. Gauge and center-to-center spacing shall be as noted on drawings.
ACCESSORIES: Reinfbrcemenl accessories. consisting of spacers. chairs, ties. and similar items shall be provided as required for spacing. assembling. and supporting reinforcement in place. All metal accessories shall be galvanized steel or approved plastic accessories, conforming to the applicable requirements of the CRSI Standards specified herein.
TIE WIRE: Tie wire for reinforcement shall be plain wire 16 gauge or heavier, where indicated or specified. black or galvanized steel wire. conforming to ASTM A82.
E. FIBROUS REINFORCING: Per Section 03240 where specified B
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D.
Section 03210 - 4
C oncrete Reinforcem ent
PART 3 - EXECUTION
].OI FABRICATION
Fabrication ofsteel reinforcement shall be in accordance with the details shown on the drawings. Where specific details are not shown or noted, comply with the applicable requirements of the "Codes and Standards" hereinbefore specified.
Bars shall be accurately bent, cut, and placed as indicated on the drawings. Bars shall be bent cold; heating ofbars will not be permitted. Bars shall not be bent or straightened in any manner that will injure the material.
Bars bent incorrectly shall be discarded and replaced with new bars. Incorrectly bent bars shall not be corrected and used.
3.02 PLACING
GENERAL: Place reinforcing steel as indicated and in accordance with the applicable requirements of referenced specified. lnstall reinforcement accurately and secure against movement, particularly under the weight of workmen and placement of concrete.
Clean reinforcement of loose rust and mill scale, earth, and other materials which may reduce or destroy bond with concrete.
B REINFORCING SUPPORTS: Support reinforcing bars above earth and on forms by concrete blocks or other approved non-corrodible supports.
Support legs of accessories in forms without embedding in form surface.
Space chairs and accessories to conform with CRSI's "Recommended Practice for Placing Bar Supports". No wood will be permitted inside forms.
WF-l-DED WIRE FABRIC: Welded wire fabric shall be set and attached to approved concrete blocks or other preapproved supports prior to placing concrete. The practice of laying the welded wire fabric on the ground surf-ace, placing concrete, then pulling welded wire fabric up into concrete will not be allowed.
SPACING: Minimum clear spacing distance between parallel bars shall be in accordance with the details on the drawings or, where not shown' the clear spacing shall be 2 times the bar diameter but in no case less than 2" nor less than I - l/3 times the maximum size aggregate.
A
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D
E
G 20 1 8' I A-O2 l ns!..rfic.lonsrD\ .t dsx Division 3
PLACING AND TYINC: Set reinforcing in place. and rigidly and securely tie or wire with 16 gauge steel tie wire in the position indicated. or as directed. Point ends of wire away from forms.
F
Section 03210 - 5
Concrete Reinforcement
SPLICES: Laps of splices, where shown or noted on drawings, shall be adequate to transfer stress by bond. Wherever possible. splices ofadjacent bars shall be staggered. Reinforcing bars marked continuous shall be spliced with a minimum lap of (40) bar diameters in masonry and (30) bar diameters in concrete.
DOWELS: Dowels shall be tied securely in place before concrete is deposited. In the event there are no bars in position to which dowels may be tied, No. 3 minimum bars shall be added to provide proper support and anchorage. Bending of dowels after placement of concrete will not be permitted.
CLEANING: Reinforcement. at time of pour. shall be free of all coatings that would impair bond to concrete.
G
3.03 INSPECTION
B
H
A NOTIFICATION: Contractor shall notify Engineer at least 2 working days ahead of each concrete pour, and no concrete shall be placed until all reinforcing steel has been installed. inspected and approved by the Inspector.
DEFECTIVE WORK: The following reinforcing steel work will be considered defective and shall be removed and replaced at no additional cost to the Owner.
G \2018\18-02lnsp€c,ficatrons,Drr I dcx Division 3
l.
2. 3.
4. Bars with kinks or bends not shown on drawings.
Bars injured due to bending or straightening.
Bars heated for bendingReinforcement not placed in accordance with the drawings and/or specifications.
END OF SECTION O32IO
Section 03300 - I
Cast-in-Place Concrete
SECTION O33OO
CAST.IN.PLACE CONCRETE
PART I -GENERAL
The work includes the fumishing and installing of cast-in-place concrete work as shown and noted on the drawings and specified herein.
Except as otherwise specified, concrete shall be composed of Portland cement. fine aggregate, coarse aggregate, and water so proportioned and mixed as to produce a plastic, workable mixture in accordance with all requirements ofthese Specifications. including water tightness where indicated, and suitable to the specific conditions ofplacement. The portions of materials shall be such as to secure the lowest water-cement ratio which is consistent with good workability. a plastic, cohesive mixture. and one which is within the specified slump range. The proportion offine and coarse aggregate shall be such as not to produce harshness in placing nor honeycombing in the structures.
I,O2 RELATED SECTIONS
SECTION 02200: Earthwork and Site Preparation
SECTION 031 l0: Concrete Formwork
SECTION 03210: Concrete Reinforcement
SECTION 07900: Joint Sealers
I.O3 CODES AND STANDARDS
Except as modified by the requirements specified herein and/or the details on the drawings. all work included in this section shall conform to, and comply with. the applicable provisions of the latest edition of following codes and standards; which shall form a part of this specification to the extent indicated by the references thereto:
A. BUILDING CODE
California Building Code, Latest Adopted Edition. Chapter 19, Concrete.
B. AMERICAN CONCRETE INSTITUTE (ACI):
ACI-l l7: "Specifications for Tolerances for Concrete Construction Materials".
2. ACI-301 : "Specification for Structural Concrete."
B.
C.
E.
C \2018r I8-02l7,Spedficadons'Dr! i dcx
I.OI SCOPE
Division 3
C
Section 03300 - 2
Cast-in-Place Concrete
3. ACI-305R: "Hot Weather Concreting".
4. ACI-306: "Cold Weather Concreting".
5. ACI-308: "Guide to Curing Concrete".
6. ACI-309R: "Guide for Consolidation of Concrete".
7. ACI-3 I 8: "Building Code Requirements for Reinforced Concrete."
8. ACI 232.2R: "Use of Fly Ash in Concrete".
9. ACI-350: "Code Requirements for Environmental Concrete Structures"
I 0. American Concrete lnstitute and lntemational Concrete Institute (ICRI): "Concrete Repair Manual", Third Edition.
Repair
AMEzuCAN SOCIETY FOR TESTING AND MATERIALS (ASTM):
I . C3 I : "Making and Curing Concrete Test Specimens in the Field".
2. C33: "Specification for Concrete Aggregate".
3. C39: "Compressive Strength ofCylindrical Concrete
Specimens".
4. C42: "Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams ofConcrete".
5. C94: "Standard Specifications for Ready Mixed Concrete".
6. Cl36: "Method for Sieve Analysis to Fine and Coarse Aggregate" 7 . Cl43: "Slump of Ponland Cement Concrete".
8. Cl50: "Standard Specification for Portland Cement".
9. Cl72i "Standard Practice for Sampling Freshly Mixed Concrete".
10. Cl73: "Air Content of Freshly Mixed Concrete by the Volumetric Method".
ll. C23l: "Air Content of Freshly Mixed Concrete by the Pressure C \2018\18-02lnspectfc.doturDiv I dex Division 3
Section 03300 - 3
Cast-in-Place Concrete
Method"
12. C233: "Standard Method of Testing Air Entraining Admixtures for Concrete".
13. C260: "Standard Specifications for Air Entraining Admixtures for Concrete".
14. C494: "Standard Specifications for Chemical Admixtures for Concrete".
15. C683: "Compressive and Flexural Strength ofConcrete Under Field Conditions".
16. D395: "Standard Test Methods for Rubber Property - Compression Set".
I 8. D47l : "Standard Test Method for Rubber Property - Effect of Liquids".
19. D2240: "Standard Test Method for Rubber Property - Durometer Hardness".
I.O4 MIX DESICNS
C
B
GENERAL: Designs of concrete mixes, including recommended amounts of admixture and water to be used in the mixes. shall be obtained by the Contractor from a recognized independent testing Iaboratory.
CONTRACTOR RESPONSIBILITY: Costs of obtaining the mix designs shall be paid for by the Contractor. Contractor shall be responsible for incorporating into the structure. concrete of at least the minimum strengths specified.
MIX DESICN SUBMITTALS: The Contractor shall submit mix designs tbr each class ofconcrete for the Engineer's review.
Concrete mix designs shall bear the signatures and seal ofa Califomia Registered Civil Engineer.
2. The exact proportions of the mix, including amounts of admixture (if any) and water, shall be determined by the Testing Laboratory or Mill, based upon cement and aggregate submitted by the Contractor.
C:r018\ l8-02lnsp€.rfi .drons\D! I d€i Division 3
17. D4l2: "Standard Test Methods for Rubber Properties in Tension".
Section 03100 - 4
Cast-in-PIace Concrete
3. Admixtures shall be specifically noted in the mix design submittal for approval.
I.O5 SUBMITTALS
B
GENERAL: Shop drawings and submittals shall be in accordance with Section 0l 340.
LISTING OF REQUIRED SUBMITTALS: Submittals shall be in
accordance with the latest edition ofACI 301. Section 4 including but not limited to:
l. Mixture proportions and characteristics
2. For cementitious materials: Types, manufacturing locations, shipping locations, and certificates showing compliance with ASTM Standards as specified in Part 2.0 hereon.
3. For aggregates: Types, pit or quarry locations, producer's names. gradings and specific gravities.
4. For admixtures: Types, brand names, producer's names. quantities, manufhcturer's technical data sheets, and cenificate showing compliance with ASTM Standards per Part 2.0 hereon.
5. Formwork submittals in accordance with Section 031 10. 1.04
6. Reinforcement submittals in accordance with Section 03210. I .04 hereon.
7. Proposed construction joints location not indicated in the Drawings.
9. Mill Tests: Certified copies in triplicate of mill tests representative of each shipment of aggregate and cement shall be fumished to the Engineer for verification ofcompliance with these Specifications. Mill tests on cement shall include a report on alkali content.
I.06 CLASSES OF CONCRETE
GENERAL: Concrete shall be of five classes. herein referred to as Classes A. B, C. D, and CE which shall be as specified herein and which shall be used where specified or indicated on the Drawings. These classes of G 20l8rl8-0:lTSpecrlicaxons I)l! I d@t Division 3
8. Strength history for the submitted mix design together with "Three Point Curve" plotting water-cement ratio versus compressive strength.
TABLE A
CLASSES ofCONCRETE
Specified
Compressive
Strength f.
At 28-Days
(psi)
Max. Net Water
To Cement Ratio
Br Weieht
Min. Cement
Per Cubic Yard
Of Concrete( l)
(Pounds)
6ll
6ll
s64
423
564
658
Slump
Range{2t
( Class lnches)
A
41{l)
B
C
CE
D*++
5.000
4.000
3.500
2.500
2500
4.500
0.48 0.48
0.53 0.71
0.71 0.45
4 4
4 4
4 4
Notes:
(l )Flyash may be used as a substitute for minimum cement content up to a maximum of 15.07o ofthe total. lncrease cement conlenl as necessaryfor "pump mix' design. (l)At the point ofdelivery and without the addition ofa high-range water reducing admixture.
When a high-range water reducing admixture is permined to be used. the slump shall be 2 to 4 in. before the admixture is added: and a ma,rimum of8 in. at the point ofdelivery afier the admixture is added.
(l)Using Type lll low alkali cement.
({)Clu., D conc.et" may or may not be used for freezing and thawing resistancei when used for such purpose. Class D concrete provides the minimum requirement for ACI-318 Freezing and Thawing Exposure Category Fl through F3. Refer to ACI-318 Table 4.2.2.7.b.2 for additional requirements only for F3 Exposure category. For th€ other exposure categories. refer to Par. 2.01.E hereon for additional requir€ments regarding freezing and thawing resistance.
C 2018\ l&02lnsFc'6canons\Di! I det Division 3
Section 03300 - 5
Cast-in-Place Concrete
concrete shall have a m in imum weight of 140 pounds per cubic foot. Class B concrete may be used for reinforced concrete such as encasements. slabs on grade. etc.: only where Class A is not specified or indicated on the drawings. Class C concrete may be used as fill for unauthorized excavation, for thrust blocks and ground anchors for piping, for bedding of pipe, and where indicated on the Drawings. Class D concrete shall be used for precast concrete items and where indicated on the plans. ClassCEshall be used for electrical encasements. All other concrete, unless specified or otherwise indicated on the Drawings, shall be Class A concrete.
Section 03300 - 6
Cast-in-Place Concrete
B. PUMPED CONCRETE:
l. Concrete that is pumped shall meet all the requirements of these Specifications.
2. Concrete with a slump outside the limits indicated in Table A shall not be placed unless otherwise approved by the Owner.
C. TYPES OF CEMENT:
Classes A, B. C, D, and CE concrete shall be made with Type II low alkali cement.
2. Class Al concrete shall be made with Type III low alkali cement
3. Class D concrete shall be made with Type V low alkali cement for wastewater applications (wet wells, sewage manholes, etc.. .), and, unless otherwise designated, Type ll low alkali cement for nonwastewater applications.
I.O7 TOLERANCES
GENERAL: It is the intent that the finished concrete conforms to the shapes. lines. grades. and dimensions indicated on the Drawings.
ALLOWABLE TOLERANCES: lt shall be the responsibility of the Contractor to comply with the intent ofthese Specilications. but it is also recognized that there u,ill be occasions when some deviation will occur or be required. It shall therefore be agreed that the maximum deviation from true Iine and grade shall not exceed the tolerances listed below at the time of acceptance of the project.
In general, all tolerances shall comply with ACI-l l7 Latest Edition, except as modified in the following. AII slabs shall be uniformly sloped to drain when a slope is indicated. Slabs shallhave a maximum deviation of l/8 inch in l0 feet without any apparent changes in grade.
Afl concrete finished surfaces having grades of 2o/o or less shall be considered a "Class A" surface per ACI-117. unless otherwise indicated.
2. On circular tank walls. the Contractor may deviate from the finish line indicated on the Drawings by the use of forms with chord lengths not to exceed 2 feet.
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G l0l8 l8-0llTSFcrficatons Dn :i dd\ Division 3
J
Section 03300 - 7
Cast-in-Place Concrete
All inserts shall be set to the tolerances required lor the proper installation and operation of the equipment or systems to which the embedded insert pertains. The following shall be considered maximum tolerances.
Item
Sleeves and inserts
Projected ends of anchor bolts
Anchor bolt setting
Max. Tolerance. lnches
plus l/8 minus l/8
plus l/4 minus 0.0
plus l/16 minus l/16
I.08 WATERTIGHTNESS OF CONCRETE WORK
GENERAL: lt is the intent of this Specification to secure for every part of the Work. concrete and grout of homogeneous structure, which when hardened will have the required strength. water tightness, lack of voids and resistance to weath€ring. "Water tightness" as defined herein shall mean concrete that is impermeable to water throughout the structure. Class A. Class B and Class D concrete shall be watertight.
SURFACE HAIRLINE CRACKS: It is recognized that some surface hairline cracks and crazing will develop in the concrete surfaces. "Hairline cracks" as defined herein shall mean barely visible surface cracks less than 0.004" in width.
Hairline cracks showing no sign of moisture leakage will not require remedial repair. Walls or slabs that are found to be not wate(ight as previously defined due to cracks too small for successful pressure grouting (less than 0.004") shall be sealed by coatings of an approved sealant system as specified elsewhere in these Technical Specifications. Contractor shall submit details of the remedial sealant repair system to Owner for revieu' and approval prior to use. Remedial repair sealant work shall be performed by the Contractor at his sole expense to the satisfaction of the Owner.
VISIBLE CRACKS: Visible surface cracks showing no signs of leakage (other than hairline cracks and crazing) as defined herein shall mean cracks up to. but not exceeding. 0.0625 (l/16") inch. These cracks shall be repaired per the referenced "Concrete Repair Manual" with an approved low viscosity injection epoxy.
Contractor shall submit details ofthe remedial repair system to Owner for review and approval prior to use. Repair work shall be performed by the Contractor at his sole expense Io the satisfaction ofthe Owner.
VISIBLE CRACKS SHOWING LEAKAGE: Visible cracks. as defined in Paragraph 1.08.C above, showing leakage shall be repaired per a detailed repair plan submitted by the Contractor and approved by the Engineeri except for defective concrete per Paragraph 1.08E.
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G lol8 lE"0:lTsF.rfcanons Dtr I de\ Division l
Section 03300 - 8
Cast-in-Place Concrete
E. DEFECTIVE CONCRETE:
Ceneral: Contractor shall bear all costs of correcting rejected work. including the cost of the Owner's additional services thereby made necessary.
2. Defective Concrete: The following conditions ofthe Work shall be considered defective concrete and promptly removed from the site:
a. Concrete containing any cracks greater than I / 16" in width. b. Concrete containing any voids. honeycombs or damaged locations d. Concrete that was not formed as indicated. and not true to intended alignment, is not plumb or level where so intended, or is not true to intended grades and Ievels.
e. Concrete that contains any inclusions ofembedded debris.
L Any concrete that is determined to be unsound or otherwise not meeting Specifi cation requirements.
3. Repair of Defective Concrete: Ifconcrete is determined to be defective by the Owner, the following conditions for repair shall apply:
b. All repair work. when completed, shall be watertight as per the original specification.
c. Permission to repair or attempt the correction shall not be construed to be a waiver of the Owner's right to require complele removal of the defeuive work.
d. In the event that the Contracror's attempts to repair the defective concrete are unsuccessf'ul. the Owner reserves the right to either require complete C :0lE\l&0:l7sFc'ricaxonr D\ I dd\ Division l
c. Concrete containing cold joints (unplanned joint or discontinuity resulting from a delay in placement of sufficient time to preclude a union of the material in two successive lifts).
a. Defective concrete shall be cut out and repaired to the limits determined by testing in accordance with the methods outlined in the referenced "Concrete Repair Manual" and as determined and approved by the Owner. Contractor shall submit details ofthe remedial repair system to Owner for review and approval prior to undertaking the repair work. Repair work shall be performed by the Contractor at his sole expense to the satisfaction of the Owner.
removal, as previously stated. or to require specialized methods ofrepair to ensure a watertight structure; all at the Contractor's expense with no additional cost to the Owner.
I.O9 TESTING OF CONCRETE
GENERAL: During the progress of construction, the Owner will have tests made to determine whether the concrete, as being produced, complies with the requirements specified herein. These tests shall be made in accordance with ASTM C 31. ASTM C 39, and ASTM C I 72. Test cylinders will be made and cured on site under the specified conditions then delivered to the laboratory by the Engineer and the testing expense will be bome by the Owner.
Not less than three cylinder specimens. 6 inch diameter by l2 inch long, will be tested for each 40 cubic yards of each class of concrete with a minimum of three specimens for each class of concrete placed and not less than three specimens for each half day's placement. One cylinder will be broken at 7 days and two at 28 days. unless otherwise determined by Owner.
Tests of the slump of concrete shall be made using a slump cone in accordance with the requirements ofASTM C 143. Concrete that does not meet the Specification requirements as to slump shall not be used and, shall be removed from thejob. The slump ofthe concrete shall be tested at least once in every 40 cubic yards placed. or as often as necessary to keep the slump within the specified range: and when requested to do so by the Engineer.
The Contractor shall make provisions for and fumish all concrete for the test specimens, and provide manual assistance to the Engineer in preparing said specimens. The Contractor shall be responsible for the care of, and providing curing conditions for the test specimens in accordance with ASTM C 3I .
CONCRETE CYLINDER TEST ACCEPTANCE CRITERIA: ThC
average value ofconcrete strength tests shall be equal to or greater than the specified 28-day strength. No test shall be less than 90 percent of the specified 28-day strength. Additionally. unless otherwise approved by the Owner. no 7-day cylinder break test shall be less than 70 percent of the specifi ed 28-day strength.
INSUFFICIENT COMPRESSIVE STRENGTH: If thc 28.dAY StTCNgth tests fail to meet the specified minimum compressive strength. the concrete will be assumed to be defective and one set of three cores from each area may be taken as selected by the Owner and in accordance with ASTM C '12.
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C 20lA l&02l7sFcificanons Dtr I dcx Division 3
Section 03300 - 9
Cast-in-Place Concrete
B.
Section 03300 - l0
Cast-in-Place Concrete
lf the average compressive strength of the set of three concrete cores fails to equal 90 percent ofthe specified minimum compressive strength or ifany single core is less than 75 percent ofthe minimum compressive strength. the concrete will be considered defective. The Owner may require additional coring, nondestructive load testing, or complete removal and replacement of defective concrete. Costs of coring, testing of cores, load testing. and required replacement pertaining thereto shall be paid by the Contractor at no extra cost to the Owner.
PART 2 - PRODUCTS
2.OI MATERIALS
A. PORTLAND CEMENT: ASTM C150, Type I or II. Type l[ cement shall meet the strength requirements ofType I cement. Use only one brand ofcement throughout the project.
C. COARSE AGCREGATE: ASTM C33, graded from ll4" to a maximum size in accordance with ACI-3 I 8 Section 3.3 and approved submittals.
D. WORKABILITY ADMIXTURE: Chemical admixtures shall be in accordance with ASTM C-494 of the type that increase workability and reduce water demand. bul will not increase shrinkage. Admixture shall be submitted to the Engineer fbr review and approval.
Water reducing additives, which do not affect the ultimate performance of any steel in any way, may be added to maintain the maximum water content below that specified herein. Water reducing additives shall conform to ASTM C494. type A or D.
2. The use of water reducing additives shall not permit a reduction in the minimum specified cement content or in the specified amount of air entrainment.
3. Admixtures shall contain no calcium chloride and triethanolamine.
4. High range water reducing admixtures ("Superplasticizers"). unless noted otherwise. shall conform to ASTM C494 Type F or G, batch plant added using second or third generation only. Only "superplasticizers" capable of holding a slump above 8-inches for more than two (2) hours will be acceptable. Provide written verification on submittals.
C 20lE\18-02lnspecificaxons'Dn I d@x Division 3
B. FINE AGGREGATE: ASTM C33. graded from l/4" to fine.
Section 03300 - ll
Cast-in-Place Concrete
E. AIR ENTRAINING ADMIXTURE: All concrete shall contain entrained air of evenly dispersed air bubbles at the time of placement. The minimum air content for concrete not providing freezing and thawing resistance shall be 2.0o/o. Air entrainment admixture shall be submitted to the Engineer for review and approval. l. The air entraining agent shall conform toASTM C260.
2. The air entraining agent shall be added to the mixing water prior to water being added to batch.
3. The solution shall be batched by means ofa mechanical batcher capable of accurate measurement.
4. Air content ofthe concrete shall be measured at the point ofdelivery (before placement) in accordance with ASTM C I 73 or ASTM C23 I .
5. The maximum total volumetric air content shall be in accordance u'ith AC[- 301 Section 4.2.2 and will vary depending on the Exposure Category "F" and the maximum aggregate size. The Exposure Category "F" for freezing and thawing resistance shall be in accordance with ACI-31 8 Table 4.2.1 .
6. The maximum water cement ratio for freezing and thawing resistance shall be 0.45. The minimum compressive strength for freezing and thawing resistance shall be 4.500 psi.
7. Tolerance on air content as delivered shall be +1.5%
8. Acceptable products include. but are not limited to, PROTEX "AES", GRACE "DAREX AEA". MASTER BUILDERS "MB AEl0". or SIKA
CHEMICAL..AER".
F. SHRINKAGE REDUCING ADMIXTURE: For Classes A, Al and D concrete. provide shrinkage-reducing admixture. BASF Tetraguard AS20, or approved equal. with mixing and dosage per manufacturer's recommendation and approved mix design, at the plant.
G. OTHER ADMIXTURES: Contractor may propose and submit other compatible admixtures for special cases, or circumstances or conditions fbr consideration by the Owner.
H. ADMIXTURE COMPATIBILITY: All admixtures shall be l'urnished by the same manufacturer or submit written verification of compatibility t'rom the admixture manufacturers. Al I adm ixture products shal I be of domestic manufacture.
C r20l81 l &021 ns!.crlicatons\Dv I d@x Division l
Section 03300 - l2
Cast-in-Place Concrete
I. TREATMENT VESSEL CONCRETE FILLS: The concrete mix design for the treatment pressure vessel concrete fill, when specified, shall meet the following requirements:
L Class A (4000 psi) concrete in accordance with this Par.2.0l.
2. Include Sikacrete 950DP densified dry powder microsilica admixture per ASTM C-1240. Dosage rate at 5 - l5o/o by weight ofcement; and mixing per manufacturer's recommendations. Perfbrm trial batches using materials in order to determine optimum dosage tbr project requirements.
J. WATER: Clean and potable. fiee of impurities detrimental to concrete.
AC Horn. Inc. "Horn Clear Seal 300"
Sonneborn-Contech "Kure-N-Seal 0800"
L. EXPANSION JOINT FILLER: Premolded. of sizes and thicknesses shown on drawings. conforming to ASTM Dl75l.
M. EXPANSION JOINT SEALING COMPOUND: Joint sealant and backerod shall be a traffic grade polyurethane. Use submerged type sealant for water-carrying structures and related potentially wet areas and traffic grade polyurethane in trallc areas. Refer to Section 07900, Paragraph 2.1 .3.
N. CLEAR SEALER HARDENER: Sonnebom
"Lithoplate" or approved equal.
"Lapidolith". Protex Industries
2.02 WATERSTOPS
GENERAL: Waterstops shall be installed in all concrete joints in a multi-pour structure. all concrete joints where indicated on the Drawings and in all water bearing structures. Waterstop shall be rubber or polyvinyl chloride.
Waterstops in the walls shall be carried into lower slabs and shall join the waterstops in the slabs with appropriate types offittings. Alljoints in water bearing structures shall have waterstops. whether indicated on the drawings or not. All waterstops shall be continuous. Waterstops shall be set accurately to the position and line indicated on the Drawings. Edges shall be held and securely fixed in position at intervals ofnot more than l2 inches so that they will not move during the placing ofconcrete. No nails shall be driven through waterstops in the vicinit5 ofconstruction joints. Wires at not more than l2 inches on centers near the outer bulbs shall be used to tie the waterstops into position. Special clips may be used in G 2018\l&02l7LsFct6carlo.s,r)lt I dcx Division 3
K. CURINC-SEALER: Curing and sealing for floor shall be one of the following acrylate resin compounds or equal.
Section 03300 - l3
Cast-in-Place Concrete
lieu of wires. at the Contractor's option. Waterstops shall be terminated 3 inches from the top of finished surfaces of walls and slabs unless otherwise specified or indicated on the Drawings.
Waterstops shall be manufactured by Burke Concrete Accessories lnc.;Greenstreak Plastic Products Division of Westem Textile Products Company, Kirkhill Rubber Company; Williams Products Inc.: or equal.
B. RUBBER WATERSTOPS: Unless otherwise specified or indicated on the Drawings. rubber waterstops shall be 6 inch ribbed centerbulb type, centered, at construction and contraction joints: and 9 inch wide ribbed centerbulb type. centered, at expansion joints. Rubber waterstops shall be as manufactured by JP Specialties of Temecula, California or approved equal and shall meet the following requirements.
Test Method
Hardness - Shore A durometer
Elongation - not less than
Tensile strength - not less than
Water absorption after two days at 158
degrees F
Compression set, 77 degrees F
Specific Cravity
5 percent
29 percent
0.96 ASTM D 2240
ASTM D 4I2
ASTM D 4I2
ASTM D 47I
ASTM D 395
ASTM D 792
The Contractor shall submit samples, prints. and complete physical property data covering the waterstop for approval.
Rubber waterstop shall be manufactured to insure an integral cross section which will be dense. homogeneous. and free from porosity and other imperfections.
Minor surface defects such as surface peel covering less than I square inch and surface cavities or bumps less than l/4 inch in longest lateral dimension and less than I /16 inch deep. will be acceptable.
All waterstops shall be installed so that alljoints are watertight. Alljoints for rubber waterstops shall be made by the use of factory-made fittings and unions. some ol which may be special. Fittings and unions shall be cemented in place using clamps over the entire area of splice until the cement is bonded permanently. Welding of the waterstop without the use of factory-made unions and fittings, will not be permitted. Split type waterstop will not be permitted except where specifically indicated on the Drawings.
Bonding cement shall be as recommended by the manufacturer of the waterstop, and field cementing or solvent welding shall be in accordance with the C :018\18-0llTSpecrfcaxons Dn I d$x Division 3
90+3
530 percent
2,300 psi
Section 03300 - l4
Cast-in-Place Concrete
manufacturer's printed directions. For potable water applications, water stops shall be certified per NSF 6l .
2.03 SYNTHETIC SPONGE RUBBER FILLER
SYNTHETIC SPONGE RUBBER FILLER (SSRF): Synthetic sponge rubber filler shall be an expanded closed-cell sponge rubber backer rod manufactured from a synthetic polymer neoprene base; or a resilient closed-cell polyethylene foam backer rod. The synthetic sponge rubber filler shall have characteristics suitable for the application intended. including the following:
2. Sufficient resiliency to prevent significant load transfer across the joint.
Resistance to the environmental conditions ofthe installation.
No bonding to the sealing compound
A cellular structure that shall prevent wicking or absorption ofwater.
Compatibility with other materials in the joint. and acceptance by the manufacturer of the sealing compound.
ACCEPTABLE PRODUCTS: Acceptable products include No. 750.3 Ropax Rod Stock manufactured by the Presstite Division of Interchemical Corporation; Rubatex-Cord manufactured by the Rubatex Corporation: or approved equal.
SUR-FACE PREPARATION AND INSTALLATION: Surface preparation and installation of the synthetic sponge rubber filler shall be as recommended by the manufacturer in published instructions. The synthetic sponge rubber filler shall not be stretched beyond its normal length during installation.
3.OI WORKMANSHIP AND METHODS
Concrete work, including detailing of reinlbrcing, shall be in accordance with the best standard practices and as set lorth in the ACI Building Code, Manuals, and Recommended Practices and submitted to engineer for review.
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G 2018\18-02lTSpecrficatrons,Dn i ds\ Division 3
l. Necessary strength for supporting the sealing compound during application.
SIZE OF SSRF: The size ofthe synthetic sponge rubber filler shall be 25 percent greater than the nominal joint width.
PART 3 - EXECUTION
D.
Section 03300 - l5
Cast-in-Place Concrete
All concrete materials shall be so delivered. stored, and handled as to prevent damage to the materials and the inclusion offoreign substances. Packaged materials shall be delivered and stored in original containers until ready for use. Material containers or materials shou'ing evidence ofwater or other damage shall be rejected.
3.02 CONCRETE POURING PROCEDURE
Provide the Owner's Representative with a copy ofthe sequence of placement. Concrete pouring procedure and sequence shall be approved by Owner no less than rwo working days prior to beginning of pour. Coordinate in advance of the concrete placement the sequence of placement to assure that construction joints will occur only as designed and that the approximate number, size and placement of access windows are included in the forming.
3.03 MIXING
Use ready-mixed concrete mixed and delivered in accordance with the requirements of "specifications for Ready-Mixed Concrete" ASTM C94. and "Califomia Building Code". latest adopted Edition. Section 1905. In the event concrete is mixed at a central batching plant. arrange delivery so intervals between batches are kept at a minimum. and in any event not more than 30 minutes. Nowatershall be added during transit orat the Project site without the Inspector's specific approval. Except tbr mix designs containing high range water reducing admixtures. place concrete within 90 minutes after cement has been mixed or before 300 revolutions of the drum or blades. whichever occurs first. after the introduction ofthe cement to the aggregates.
Trucks shallbe in first-class condition and kept in constant rotation during delivery. Trucks shall arrive at jobsite with a fu[! water tank.
3.04 CONVEYING AND PLACING CONCRETE
GENERAL: The Contractor shall submit a proposed sequence ofplacing concrete showing proposed beginning and ending of individual placements. After acceptance. this sequence shall be adhered to except when specific changes are requested by the Contractor in writing and accepted by the Engineer in writing prior to commencement.
NOTIFICATION: After rebar placement has been approved. notil] the lnspeclor at least two working days in advance ofthe placing ofany concrete.
APPROVALS: Obtain approval of soil bottoms for footings and slabs from the Soils Engineer before placing reinforcing steel.
D. FIELDDOCUMENTATION:
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Section 03300 - l6
Cast-in-Place Concrete
l. Any concrete load will be rejected without the fbllowing documentation:
a. Weights of all mix constituents
b. All admixtures used with quantities listed
c. Water added atjobsite (if allowed by inspector)
d. Water added after ticket signed by weigh master/deputy e. Slump
f. Fiber reinforcement volume/quantity (if applicable)
g. Delivery times
h. Number ofrevolutions on drum for delivered load.
Truck revolution counter shall be re-set for each load and indicated on load ticket.
Load tickets must be signed by Weigh Master, and Batch Plant Deputy Inspector where applicable.
Provide vendor's "Certificate of Compliance" for State of Califomia DOT as req u ired.
F PREPARATION:
eliminate suction.
Sprinkle semi-porous sub-grades with water sufficiently to G. HANDLINC AND DEPOSITING
2. Handle concrete as rapidly as practical from the mixer to place of final deposit by methods which prevent the separarion or loss of ingredients.
Deposit in its final position to avoid re-handling or re-flowing.
3. Do not drop concrete lieely where reinforcing will cause segregation, nor more than 4 feet. Deposit concrete to maintain a plastic surf'ace approximately horizontal.
4. Do not deposit concrete that has partially hardened
O:?01E\ I E-02 I nsF.rficar'o.s Dr I dcr Division l
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FORMS: Before placing concrete. forms shall be thoroughly inspected. All wood chips. din, etc.. shall be removed, all temporary bracing and cleats taken out. all openings for pipes, etc.. properly boxed. all forms properly secured in their correcr position and made tight, all reinfbrcement, anchors. and embedded items secured in their proper places. Concrete which may be on the forms or reinfbrcement and rl'hich is set and dry. shall be cleaned offand the forms and steel washed offbefore proceeding.
E.
l. Complete concreting, once staned, in continuous operations until the section ofapproved size and shape is completed.
H
Section 03300 - l7
Cast-in-Place Concrete
5. Do not deposit fresh concrete on concrete that has hardened sufficiently to cause formation ofcold joints, unless construction joint requirements of Par.
3.04.H are met.
6. Do not place concrete that contains foreign material.
7. When temporary spreaders are used in the forms, remove the spreaders as the concrete is placed. Spreaders made of metal or concrete may be left in place if prior acceptance is obtained.
8. Do not subject concrete to procedures that will cause segregation.
CONSTRUCTION JOINTS: Locate construction joints as indicated in Contract Documents or as approved in the submittals. Formed construction joints shall meet requirements of Section 031l0 Par.2.0l.D. Remove laitance and thoroughly clean and dampen construction joints before placement of fresh concrete. When bond is required. use one ofthe following methods:
Use an acceptable bonding agent applied in accordance with the manufacturer's recommendations;
Use an acceptable surface retarder in accordance with manufacturer's recommendations:
1 3 Roughen the surface in an acceptable manner that exposes the aggregate uniformly and does not leave laitance. loosened aggregate particles' or damaged concrete at the surface; and
Use portland-cement grout of the same proportions as the mortar in the concrete in an acceptable manner.
I
CONSOLIDATING: Unless otherwise specified, consolidate concrete by vibration. Consolidate concrete around reinforcement, embedded items and into corners of forms to eliminate honeycombing or planes ofweakness due to air voids and stone pockets.
G:r018\18-02lnsp.cifi catio.s\Drr I d6r Division 3
9. When underwater placement is required or permitted, place concrete by an acceptable method. Deposit fresh concrete so concrete enters the mass of previously placed concrete from within, displacing water with minimum disturbance of the concrete surface.
Unless otherwise specified. use the largest and most powerful intemal vibrators to consolidate the concrete. Use immersion-type vibrators with nonmetallic heads when consolidating concrete around epoxy-coated reinforcement.
Section 03300 - 18
Cast-in-Place Concrete
Workers shall be experienced in the use of vibrators. Do not use vibrators to move concrete within the forms. Spacing of immersion vibrator insertions shall not exceed l-l/2 times the vibrator's radius of action in the concrete being consolidated.
Vibrate close to the forms but do not continue at one spot to the extent that large areas ofgrout are formed or heavier aggregates are caused to settle. Take care not to disturb concrete which has taken its initial set.
Vibrators shall be 14.000 vibrations per minute (minimum) TEMPERATURE REQUIREMENTS: Maximum placing temperature ofconcrete, when deposited, shall be 90 degrees F. If the weather causes the placing temperature to exceed 90 degrees F, cool the mix by wening aggregate at batch plant or other appropriate methods at the batch plant as specified in American Concrete Institute "Specification for Hot Weather Concreting" ACI 305R. Latest Edition; a copy of which shall be kept at thejob site at all times.
Immediately after stripping forms. and before any concrete is thoroughly dry, immediately submit method of repair to Owner for approval for any minor defects, tie holes or honeycombed areas. Refer to Paragraph 1.08 for additional information.
3.06 CONCRETE SLAB FINISHES (AT GRADE)
BROOM FINISH: After concrete has been troweled and joints have been formed, use a soft bristled broom to provide a light, uniformly straight scored surface at right angles to the general flow oftraffic.
SLAB LEVELS: Finish surfaces true to l/8 inch in l0 feet on a straight-edge in any direction with maximum high and low variance occurring in not less than 20 feet and with l/16 inch maximum tolerance in any one running foot. Take care to finish troweling around the edges ofthe slabs so finish surface edges will be at same elevations as the rest ofthe top surface ofthe slab. Use temporary screeds set level at the proper elevations.
MARK-OFF LINES: Form mark-off lines with curved edging tool. neat and true to line. uniform throughout. Conform to markings indicated.
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G: \2018\ 18-0117,slEqficationsrD,v I dex Division 3
A.
3.05 EVALUATION AFTER REMOVAL OF FORMS
STEEL TROWEL FINISH: Screed. wood float. and steel trowel surfaces. Provide a smooth, hard. dense. impervious surface. free of defects. Finishers shall work irom knee boards laid flat upon the surface. Mechanical troweling machines may be used ifthe desired finish and level tolerances can be obtained by their use.
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Section 03300 - l9
Cast-in-Place Concrete
WEAKENED PLANE JOINTS: Provide saw cut joints to the indicated depth after the surface has been finished. Sawed joints shall be completed within 4 to l2 hours after concrete placement. Protectjoints from intrusion of foreign mafter.
3.07 CURING AND SEALING
PROTECTION: Protect concrete from injurious action of the elements and delacement oIany nature during construction operations.
MATNTAINING MOISTURE: Keep concrete in a thoroughly moist condition from the time it is placed until it has cured for at least 7 days. Keep all forms sufficiently wet to prevent drying out ofthe concrete. Allow no slabs to become dry at any time until curing operations are complete.
A
B
C INTERIOR FLOOR SLABS: Cure interior floor slabs with curing-sealing compound. Apply by method and at rates recommended by manufacturer.
Just prior to completion of project. apply a second coat of curing-sealer to entire floor slab surface. at a rate recommended by manufacturer.
3.08 EXPANSION JOINTS
Provide pre-molded expansion joints to full depth of slabs, where indicated on the drawings. Install with top edge l12" below the surface and tool adjacent concrete edges to a l/8" radius. Use steel pins to hold material in place during placing and lloating of concrete. After a minimum of28 days after slabs have been placed and finished. fill tops ofexpansion joints with a traffic grade self-leveling sealer to l/8" below surface ofslabs.
No traffic shall be permitted to travel over sealedjoints until sealer is thoroughly dry.
3.09 WATER STOPS
3.IO DEFECTIVE WORK
AII concrete work determined by the Owner to be "defective". shall be immediately removed and replaced solely at the Contractor's expense to the satisfaction ofthe Owner.
Also refer to Paragraph I .08 for criteria and provisions when water tightness ofconcrete is applicable.
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END OF SECTION O33OO
Division 3
I
Provide water stops for all potentially submerged construction joints in structures. Install per manufacturer's recommendations.
Section 03480 - I
Precast Concrete Vaults and Manholes
SECTION 03{80
PRECAST CONCRETE VAULTS AND MANHOLES
PART I -GENERAL
I.OI DESCRIPTION
This section covers the requirements for furnishing and installing precast vaults and manholes as indicated on the Contract Drawings. Under these specifications, a company regularly engaged in the manufacturing ofprecast vaults and manholes, as approved by the Owner, shall be required to fumish, deliver and properly set in place the specified precast concrete products.
I.O2 RELATED SECTIONS
SECTION 01340: Shop Drawings and Submittals
SECTION 02200: Earthwork and Site Prepararion
SECTION 03300: Cast-ln-Place Concrete
SECTION 09872: Geopolymer Manhole Liner System
I.O3 MANUFACTURER'SWARRANTY
The precast vault/manhole manufacturer shall guarantee all materials and workmanship of items fumished under these specifications shall be free from defects fbr a period of one yearafterfinal completion and acceptance of the contract work. All defective materials or workmanship found to be deficient with respect to any provisions of these specifications or referenced standards shall be repaired or replaced as approved by Owner, at no additional cost to the Owner. Submit, tbr the Owner's acceptance, manufacturer's standard warranty document executed by authorized company official. Manufacturer's warranty is in addition to and not a limitation of. other rights the Owner may have under the Contract Documents.
I.O4 REFERENCESTANDARDS
CENERAL: Except as modified or supplemenred herein. all precast concrete vaults and manholes shall conform to the applicable requirements ofthe ASTM and ACI Standards.
C l:l) l8r llt-o: I 7sp.cr ficatonr ON I dd\ Division 3 A.
B.
C.
D.
Section 03480 - 2
Precast Concrete Vaults and Manholes
B. INDUSTRY STANDARDS:
Reference Specifications and Standards: Contractor shall comply with the recommendations of the Precast Concrete Institute (PCI), unless otherwise indicated in this Section.
2. Concrete Reinforcing Steel [nstitute. "Manual ofStandard Practice".
I.O5 SI,IBMITTAI-S
EMBEDMENTS:
concrete.
Submit any embedments or inserts into pre-cast
I]
GENERAL: Submit shop drawings. including related details and data in accordance with Section 01340.
CALCULATIONS: Submit design calculations and complete drawings signed and stamped by a Civil or Structural Engineer registered in the State of California.
JOINT SEALANTS: Submit joint sealing compound for watertight joints.
INTERIOR COATING: Submit per Section 09875 (wastewater
applications only).
CONCRETE: Submit concrete mix design.
INSTALLATION PROCEDURES: Submit manufacturer's recommended installation procedures.
COVERS AND HATCHES: Submit covers and hatches as indicated on the Contract Drawings.
EXTERIOR WATERPROOFING MATERIALS: Submit product data per Part 2.
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II
J CERTIFICATION: A statement shall be submitted giving the qualifications of the precast concrete fabricator. and evidence that the manufacturer is PCI certified.
K. WARRANTY: Provide manufacturer's warranty prior to project close-out.
G ?01El l8-02l7,Sp.c,ficanons\Dtr 3 dcx Division 3
l
I.
Section 03480 - 3
Precast Concrete Vaults and Manholes
I.06 PLANT REQUIREMENTS AND QUALITY ASSURANCE
GENERAL: All precast concrete vault and manhole sections. including top slab and base slab (ifapplicable), shall be manufactured in a plant especially designed for that purpose. All units shall conform to the design shown on the Contract Drawings, and all work shall be conducted under strict controlled supervision.
PLANT INSPECTION: Plant manufacturer shall provide certification that all units conform to the applicable requirements. provisions and tolerances set forth in the applicable ASTM Standards and the provisions described herein. The Owner reserves the right to have its Engineer or Engineer's representative present prior to and during the concrete pour for the precast products. Contractor shall notifo the Owner two (2) working days in advance ofconcrete pour for all precast products to be fumished under these Contract Documents.
I.O7 DESIGN LOADS
A GENERAL: Design loads shall consist of dead load, live load, impact. and in addition. loads due to water table. and any other loads which may be imposed on the structure.
WATER TABLE: For purposes of design, the water table shall be assumed at a level of four (4) feet below the top ofthe precast vault or manhole.
LIVE LOADS: Live loads shall be tbr H-20 and/or H-20-S l6 per AASHTO Standard Specifications for highway bridges with revisions. Design wheel load shall be l6 kips. The live load shall be that loading which produces the maximum shears and bending moments in the structure. No live loads shall be considered when analyzing the vault or manhole for uplift caused by the specified water table level.
D
I.O8 DELIVERY, STORAGE AND HANDLING
LIFTING AND SUPPORTING: Precast units shall be lifted and supported from design incorporated support points based on design calculations and provided with strong backs and other devices as required. Lifting equipment shall be capable ofhandling units during manuflacture, storage, transporlation. erection. and lhsten ing.
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G -l0lE l8-0llTSpecrlicanonr Dtr I dd\ Division l
EARTH LOADS: Soil weight. allowable bearing pressure. acrive soil pressure and passive soil pressure shall be in accordance with the soils report. Ifno soils report is available. use Uniform Building Code values.
Section 03480 - 4
Precast Concrete Vaults and Manholes
B. BLOCKING AND SUPPORTS:
Blocking and supports, lateral restraints and protective materials during transport and storage shall be clean. nonstaining. causing no harm to exposed surfaces. Lateral restraints shall be provided to prevent undesirable horizontal movement. Edges and exposed faces of units shall be protected to prevent straining. chipping, or spalling ofconcrete.
STORAGE: Precast units shall be stored off the ground in a manner to prevent warpage and shall be protected from weather, marring, and overload.
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PART 2 _ PRODUCTS
2.OI MANUFACTURERS
Approved manufacturer's are:
l. Oldcastle Precast, Inc
2. Jensen Precast
2.02 MATEzuALS
B
C
CONCRETE: Concrete shall be 5.000 psi (minimum) compressive strength at 28 days in accordance with Section 03300. Cement shall be low alkali.
Use Type V cement for wastewater applications and Type II cement for non-wastewater applications.
REINFORCING STEEL: All reinforcing steel shall be intermediate or hard grade billet steel conforming to ASTM A-61S/Grade 60. Bars other than l/4" round. or smaller. shall be deformed in accordance with ASTM ,4305.
COVERS AND HATCHES: Provide traffic rated or parkway rated springassisted. hinged covers and hatches as indicated on the Contracl Drawings.
WATERPROOFING: Refer to Section 07120 ("Fluid Applied Water Proofing"). NOT APPLICABLE TO THIS PROJECT.
INTERIOR COATING: For wastewater applications, field applied coating shall be in accordance with Section 09872 (Geopolymer Manhole Liner Systems).
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(; lol8 l8-0llTStlcrticaxons Dn I drE\ Division 3
Section 03480 - 5
Precast Concrete Vaults and Manholes
2.03 FORMS
GENERAL: Forms shall be manufacturer's standard forms with smooth. hard. dense. and rigid casting surface: without bow and uarpage. oil canning, or other imperfections.
FORM RELEASE AGENT: Form release agent shall be manufacturer's standard release agent. nonstaining, nonpetroleum based and shall be compatible with concrete surlace sealer.
2.04 ACCESSORIES
Accessories shall be as indicated on the Contract Drawings. Plates, angles, anchors, and studs shall comply with ASTM A 666, Type 3l6L stainless steel. Ladders ifapplicable. shall be in accordance with the plans.
2.05 FABRICATION
PART 3 _ EXECUTION
3.OI HANDLING AND ERECTION
GENERAL: Before erecting. all relevant project site conditions shall be checked insof-ar as they alfect the installation of precast elements.
Elements shall be erected in accordance with the referenced standards. drawings. Specitications. and Owner approved submittals. using competent craftspersons under the continuous supervision ofthe fabricator. Elements shall be accurately set in the positions assigned to them on the reviewed installation or erection drawings and securely anchored in final positions.
Alljoints shall be sealed in strict conformity with detail drawings.
WORKMANSHIP: All field sefting and installation shall be perfbrmed in a neat and workmanlike manner per the manufacturer's recommendations.
Defective workmanship and/or materials shall be subject to rejection.
All cracked. damaged, or otherwise defective precast elements, not feasible to repair, shall be replaced unril acceptable ro the Owner without additional cost to the Owner.
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(j :018 l8-0zlTspccrficanons D .l dc\ Division J
B.
Precast concrete units shall be fabricated in accordance with ACI 318 and pCl MNL-116.
PIant records and quality control program shall be maintained during production ofprecast units and lumished to the Owner at the time of deliverv.
Section 03480 - 6
Precast Concrete Vaults and Manholes
JOINTS: Precast sections and base slab shall bejoined with an approved joint seal compound for a watertight joint.
C
Precast sections below the specified potential water table shall be securely fastened and restrained to prevent sections from pulling apart.
CAST-IN-PLACE CONCRETE BASES: Unless otherwise approved by Owner, cast-in-place concrete bases shall cure a minimum ofseven (7) days prior to setting ofthe precast vault or manhole sections.
PRECAST CONCRETE SECTIONS: Unless otherwise approved by the Owner, all precast sections below the top 18" of the structure shall be comprised of section heights equal to, or greater than, 30 inches. The top I8" ofthe structures shall contain grade rings or sections 6 inches to 12 inches in height.
EMBEDMENTS: Vault manufacturer and Contractor shall coordinate l-or delivery and installation of all specified embedments (such as davit arm receptacles) prior to pouring ofthe pre-cast concrete top sections. 3,02 WATERPROOFING
All buried exterior surfaces of concrete walls. including vaults and manholes, shall be protected from moisture with below-grade waterproofing system. Refer to Contract Drawings and Section 071 20 ("Fluid Applied Waterproofing") of the Technical Specifications.
3.03 TOLERANCES
VARIATION FROM PLANE OF LOCATION: l/4-inch in l0 feet
maximum.
OFFSET FROM TRUE ALIGNMENT BETWEEN TWO CONNECTING
MEMBERS: l/4-inch maximum.
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END OF SECTION 03480
Division J
Tolerances shall be in accordance with requirements of PCI MNL-ll7 and as follows:
DIVISION 7
THERMAL AND MOISTURE PROTECTION
C ,2018\18-0: lTsp€crficaxons\Dtr ? dc\ Division 7
DIVISION 7
1'ABLE OF CONTENTS
SECTION
07lZO Fluid Applied Waterproofing
PAGE
07120-l
G 20lA l8r)ll7Sp.crfic!fio.s Dtr 7 de\ Division 7
Section 07120 - I
Fluid Applied Waterproofing
SECTION 07I20
rLUID APPLIED WATERPROOFING
PART I - GENERAL
I.OI DESCRIPTION
A ELASTO-DECK B.T.: A black. liquid-applied. single-component, moisturecured polyurethane system. designed to form a tough rubber membrane impervious to moisture.
t.02
l. Type I: For horizontal surfaces.
2. Type ll: For vertical surfaces.
3. Elasto-Thane 500: For cracks, voids and other surface inegularities.
WORK INCLUDED
The u'ork to be completed under this secrion shall include the fumishing of all materials. labor. tools and equipment for the complete installation of PACIFIC POLYMERS INTERNATIONAL. INC. Elasto-Deck B.T. Svstem where indicated on the drawings and as specified herein:
l .03
l. 90 Mils Thickness (Rough Surfaces)
a. Concrete bloclq below grade
b. Pre-cast and cast-in-place concrete structures
QUALITY ASSURANCE
A. APPLICATORS
2 A licensed contractor approved by the manufacturer. PACIFIC POLYMERS INTERNATIONAL. INC.. or equal.
Be a licensed specialty contractor in the business of applying elastomeric membrane roofing and waterproofing for a minimum of five years.
C r0la\18-O2lTsFqllcalo.srDr! 7 d6x Division 7
Section 07120 - 2
Fluid Applied Waterproofi ng
B. MANUFACTURER
Certifu in writing that applicator is approved for this type and size or proj ect.
Review the job from time to time during the progress of the waterproofing work and verifo that products are being properly installed. Manufacturer should make note ofany exceptions.
When the waterproofing is complete. deliver a letter from the manufacturer to the architect indicating compliance with the above.
I.O4 SUBMITTALS
MANUFACTURER'S PRODUCT DATA: Submit copies of manufacturer's product literature and installation instructions to the Engineer for review and approval.
B SAMPLES: Submit samples of elastomeric membrane waterproofing on flat plywood board, approximately 2 t/," x 4" .
I.O5 PRODUCT DELIVERY AND STORAGE
Deliver materials to job site in sealed, undamaged containers. Each container shall be identified with material name. date of manufacture and batch number.
I.06 JOB CONDII'IONS
I.O7 GUARANTEE
All PACIFIC POLYMERS INTERNATIONAL, INC. products specified above shall be guaranteed against defects in manufacture for a period ofthree (3) years.
Guarantee shall include responsibility for ruptures caused by cracking in the substrate up to l/8" in width.
2 3
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The Contractor shall examine the surfaces before any commencement of work. Concrete shall be properly dried and the surfaces shall be in proper condition to receive the coating system. Ifthe Contractor considers any surface unsuitable for proper finish ofany work. he shall not apply any material until the unsuitable surlaces have been made satisfactory' O "20181 lE-o217 SFo ficaxo6,D! , dcx Division 7
Before starting work, visit the site to inspect substrates and related work by others. Manufacturer shall be notified in writing 5 days prior to inspection.
Section 07120 - 3
Fluid Applied Waterproofi ng
This guarantee shall remain in effect only if an approved licensed applicator has installed the system according to Manufacturer's specifications and the standard maintenance procedures are followed.
Extend. joint manufacturer/applicator w,arranties are available for specific projects.
PART 2 - PRODUCTS
2.OI GENERAL
Components shall be manufactured by PACIFIC POLYMERS INTERNATIONAL, INC. or shall be approved as compatible with materials manufactured by PACIFIC POLYMERS INTERNATIONAL, INC., or equal.
2.02 2.03
ELASTOMERIC MEMBRANE WATERPROOFING SYSTEM
A. The system shall be PACIFIC POLYMERS INTERNATIONAL, INC Elasto-Deck B.T. System or equal.
l. 90 mils thick- Rough surfaces
B. MATERIALTYPES:
l. Type II: For vertical surfaces.
2. Elasto-Thane 500: For cracks, voids and other surface irregularities.
RELATED MATERIALS
A. SEALANTS: ELASTO-THANE 500.
B BACKER ROD
chemical.
Closed-cell Polyethylene rod. such as Ethafoam by Dow
C
D
E.
F.
G
FLASHING TAPE: Woven glass cloth tape.
PROTECTION COURSE: Minimum l/8" thick ApOC protection panel by Asphalt Products Oil Corp., or Amocor PB4 protection board or equal.
CLEANING MATERIALS: Elasto-Deck solvent or Xvlene.
ELASTO-POXY PRIMER
METAL PRIMER
G .20lA l842lnsp..rlicano6,Dn I dex Division 7
Section 07120 - 4
Fluid Applied Waterproofing
PART 3 - EXECUTION
3.OI SURFACECONDITIONS
3.02 PREPARATION
A
All surfaces must be clean and free of any oil, dirt, grease. and other contaminants which will interf'ere with adhesion of the coatings.
CONCRETE: All surfaces to receive elastomeric waterproofing system shall be completely cleaned by sandblasting or acid etching. Ifacid etching is used, a l0o/o to 15% muriatic acid solution applied by mop or broom, shall be allowed to remain on the surface approximately l0 minutes or until bubbling ceases. Surfaces shall then be thoroughly washed with clean water to remove all residue and shall be allowed to dry.
C. CRACKS AND CONTROL JOINTS:
Except for non-moving shrinkage cracks. all other cracks and joints must be sealed with Elasto-Thane 500. a single-component. moisturecured sealant manufactured bv PACIFIC POLYMERS INTERNATIONAL. INC.
Large cracks, l/16" and over, shall be routed out as required by the manulacturer and sealed with E,lasto-Thane 500. Apply sealant to inside area ofcracks only. Do not apply to concrete deck surfaces.
Seal secondary control and expansion joints with Elasto-Thane 500 sealant and backer rod.
3.0] APPLICATION
Apply elastomeric waterproofing system in accordance with the following specifications for PACIFIC POLYMERS INTERNATIONAL, INC. ElastoDeck B.T. System or equal.
B PACIFIC POLYMERS INTERNATIONAL, INC. Elasto-Deck B.T. System (90 Mils thickness) or equal.
All cracks l/16" and over must be routed or saw cut and filled with Elasto-Thane 50.
B
,
Division 7
All surfaces must be clean and free of any oil, dirt. grease and other contaminants which will interfere with adhesion of the coatings. Surfaces shall be left broom lean.
A.
I
2. C:r2018\t8-02lnSp.cificadons\Dr 7 d@x
Section 07120 - 5
Fluid Applied waterproofing
At intersections of membrane and vertical walls, columns, pipes and other penetrations. caulk a %" fillet bead at the meeting angle using Elasto-Thane 500. Elasto-Thane 500 need not be cured before applying Elasto-Deck B.T. since they are completely compatible.
After a24 hour cure. apply a second coat of Elasto-Deck B.T. at the same 28.4 square feet per gallon to achieve a total dry film thickness of 90 mils.
J
4 3.04 INSPECTION
D
The wet film thickness ofeach coat shall be checked during application by averaging numerous measurements taken with a film gauge and thickness shall be sufficient that when cured the dry film thickness will be as specified herein.
All surfaces coated shall be visibly checked to insure area has not been missed and all holidays in the film are repaired.
All coating work shall be subject to inspection at any time to insure strict compliance with the manufacturer's recommendations. Test areas shall be cut whenever requested by the architect to verify conformance to the specifications. Any unsatisfactory area shall be remedied by the applicator.
After the completed system is allowed to cure for 48 hours, pond testing may be performed. Set temporary dams and plug drains as required, and pond test all horizontal membranes with a minimum 3" depth of water for not less than 72 hours. Correct leakage and repeat test until water tight.
3.05 PROTECTION COURSE
Install protection board on cured membrane. after testing, without delay, so that the period ofexposure shall be minimized.
3.08 CLEAN-UP
At completion of construction work, remove all temporary protection and barricades from the work.
Clean all items of work. Examine all work and repair all damage. ln the event damage is irreparable, remove and replace such items at no additional B
C
B
G 2018\18-021nspecrficanons Dtr ? dG\ Division 7
2. Appty by airless spray, roller brush or squeegee. The first coat of Elasto-Deck B.T. at a rate of 28.4 square feet per gallon.
A.
C
Section 07120 - 6
Fluid Applied Waterproofing
cost. Do all required touch-up to marred or abraded surfaces. Leave entire work in condition acceptable to District.
The Contractor shall at all times keep the project area free ofexcessive waste, materials and rubbish. Prior to completion of work, the Contractor shall remove all such waste, equipment, other property and tools from the project area.
END OF SECTION 07I 20
C 12018\ l8-0llnsp.cifcatons\Di\ 7 dcx Division 7
FINISHES
Division 9
DIVISION 9
G:\20 | 8\ I 8-02 I nspecrfications\D,! 9 docx
SECTION
09872
09875
Cured-in-Place Manhole Liner System......
Epoxy Coating for Existing Concrete Wastewater Structures..............
PAGE
09872-l
09875- 1
G \1018\ l 8-01 l nspec r ficanons\Drv 9 docx Division 9 DIVISION 9
TABLE OF CONTENTS
Section 09872 - I
Cured-in-Place Manhole Liner System
SECTION 09872
CURED-IN.PLACE MANHOLE LINER SYSTEM
PART I - GENERAL
I.I GENERAL
A. This section covers the cleaning and lining and rehabilitation ofsanitary sewer manholes where shown on the Drawings with the use of cured-in-place manhole (CIPM) liners.
B. Where a CIPM liner can not be used due to existing drop pipes that cannot be removed from the manhole wall, an epoxy system shall be utilized at the approval of the City. Epoxy system shall be Epoxy-Structure Guard or approved equal.
Contractor shall determine the need for an epoxy system prior to bidding the project and shall include the necessary costs in his/her bid.
t.2 DESCRIPTION OF WORK
A. Design and install CIPM liner so that it completely seals the manhole. shelf. pipe inlet, and outlets and the lid ring frame in a monolithic method, and that no holes. cracks, or seams in the liner are left unsealed which would allow gases or fluids to flow behind the CIPM liner.
B. Furnish all labor, materials, equipment. and incidentals required to design, supply and install a protective CIPM liner as specified herein.
C. The CIPM liner shall be designed and installed to protect concrete, brick, and other interior manhole surfaces from corrosion. The CIPM liner product shall be designed to stop infiltration. root intrusion, and further deterioration in the manhole.
The interior surfaces to be protected shall include the walls, shelves. pipe junctions and the lid ring frame.
D. Omission ofa specific item or component obviously necessary fbr the proper installation and functioning of the system shall not relieve the CONTRACTOR from the responsibility of supplying that specific item or component at no additional cost to the City.
I.3 SUBMITTALS
A. Submit the following:
1. A copy of liner manufacturer's certified licensed installer certification for the applicator ofthe liners.
2. An affidavit from the manufacturer of the CIPM lining material attesting to a minimum period of 20 years' successful use of its materials as a lining for concrete structures in wastewater conditions recognized as corrosive or otherwise detrimental to concrete. Successful use is defined as no defects in materials and workmanship, no deterioration ofthe lined surfaces by sewer gas induced corrosion. no root intrusion through the lined surfaces, and no G O0l8\ l8{2lnspecrlicanons\D!! 9 dorx Division 9
Section 09872 - 2
Cured-in-PIace Manhole Liner System
infiltration ofground water into the collection system through the lined surfaces for a minimum period of 20 years.
3. A copy of the manufacturer's 2O-year written guarantee for all materials fumished under this section.
4. A copy ofthe installer's 20-year written warranty for materials and labor to repair or replace any lailing conditions related to the installation ofthe liner in the structure.
5. A copy ofthe liner material manufacturer's third-party independent test lab report that documents the CIPM cured liners minimum physical properties on factory manufactured test samples tested per ASTM F 790 exceeding 1.000.000 psi.
6. A copy of the CONTRACToR's experience and qualifications demonstrating conformance to the qualification requirements specified herein.
The list shall include the agency. contact name. and contact information.
7. Copies ofthe initial manhole designs based on the technical requirements noted herein as well as the name and relevant experience of the engineer licensed to practice in the State of Califomia who will seal the final designs.
B. Submit results of manhole field measurements and inspections before ordering materials. Submit proposed liner design meeting the minimum design requirements noted herein and sealed by an engineer licensed to practice in the State ofCalifomia to the ENGINEER before ordering materials. Each form shall include the physical location of each manhole.
C. Submit complete detailed shop drawings and schedule for all materials furnished underthis section. Including factory written certification that the installed liner meets the design requirements of this specification.
D. Submit the manufacturer's third-party certifications of testing. with the accompanying test date. showing epoxy resin bonding strength of over 7.000 psi when tested with 10.000-psi concrete test cylinders in a butted resin-bonding test.
That testing must demonstrate no epoxy bonding detachment prior to the failure of the concrete.
E. A written test lab report that documents the cured liners minimum physical properties of factory manufactured test samples tested per ASTM F 790 by a certified independent test laboratory exceeding 1,000,000 psi. Demonstrate that the as-installed liner has an elongation sufficient to bridge up to a l/4-inch settling crac k.
F. Confined space entry certifications.
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1,5
Section 09872 - 3
Cured-in-Place Manhole Liner System
STANDARDS
A. The CIPM liner system shall be manufactured and installed to be in compliance with the minimum value recommended by the manufacturer's standards and shall comply with the latest version of the following ASTM testing requirements:
1. ASTM D638 Tensile Strength and Tensile Modulus
2. ASTM D 695 Compressive Strength
3. ASTM D 790 Flexural Strength and Flexural Modulus
4. ASTM D 2240 Hardness
5. ASTM D2990 Tensile, Compressive, and Flexural Creep and CreepRupture of Plastics
6. ASTM F3033 Standard Practice for Installation ofa Single-Sized, CuredIn-Place Liner Utilizing an Inflatable Bladder for Resurfacing Manhole Walls of Various Shapes and Sizes
B. The following standards shall also be applicable to the installation of CIPM liner systems:
1. lnternational Concrete Repair Institute - Technical Guideline No. 03732 - Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings and Polymer Overlays.
2. National Association ofCorrosion Engineers - No 6. i SSPC SP l3 Surface Preparation of Concrete.
QUALIIFICATIONS
A. The CIPM Lining lnstaller shall have performed a minimum of ten (10) installations within the last 5 years.
B. CIPM Lining lnstallers shall be trained and certified by the CIP lining manufacturer.
C. CONTRACTOR's or Subcontractor's staff at the Project site shall be trained in confined space rescue and have all necessary rescue equipment onsite during the duration of the manhole rehabilitation Work.
I.6 WARRANTY
A. Manufacturer shall warrant the performance ofthe CIPM liner for 20 years.
B. At the completion of the Work, the installer shall issue the City a 2O-year installer warranty certificate covering all materials used, installation and structural strength. smooth hydraulic transition. an assurance against any visible deformation during the warranty period. The warranty certification is to state that during the installer warranty period the CONTRACTOR (lnstaller) shall repair all above listed defects at the CONTRACTOR's expense.
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Section 09872 - 4
Cured-in-Place Manhole Liner System
t.7 DESICN BASIS AND MINIMUM DESIGN REQUIREMENTS
A. The CIPM liner system shall be designed and installed to:
1. Fit integrally in the existing manhole structure with a close-fit sufficient to facilitate composite interaction with the host manhole structure.
2. The host manhole shall be inspected prior to finalizing design and be confirmed to be devoid ofstructural fractures or other defects that would readily transfer loads otherthan hydrostatic loads from groundwater to the CIPM lining system. Based on confirmation of same. the CIPM shall be designed to structurally resist all hydrostatic loads based on an assumed maximum groundwater surface at ground level as well as all handling loads to facilitate installation and routine maintenance as specified herein.
3. The CIPM system may be designed as unbonded system such that the CIPM structure itself is adequate to resist all hydrostatic and other loads.
4. The structural design shall account for the effects of creep in the CIPM based on 50 years of continuous exposure to the applied stress level as determined in an ASTM D2990 test to establish flexural modulus creep for the specific resin-composite system proposed for use. The ASTM D2990 test should be carried out at stress levels equal to 25Vo of the short-term flexural yield strength of the material. The long-term factor of safety for buckling of the CIPM shall be a minimum of 2.0.
5. lrrespective ofthe lack ofreliance on bond. the receiving substrate of the manhole shall be prepared in such a manner to preclude any deleterious interaction between the CIPM and substrate surface and maximize the degree of mechanical interlock between the substrate and CIPM.
6. Provide adequate chemical resistance to meet the exposure conditions noted herein, including protection against corrosion and typical chemicals fbund in domestic sewage and sewer gas.
PART2- PRODUCTS
2.I MANUFACTURERS
A. The cured-in-place manhole (CIPM) shall include four or more layers of resinimpregnated fiberglass, and non-porous PVC membrane. The non-porous PVC membrane shall be shielded by the fiberglass layer to be resistant to damage after installation.
B. The liner system shall be either ofthe following. or equal:
1. CIPM Liner System, as manufactured by Altemative Liner Technologies
2. Triplex Liner System, as manufactured by McNeil Technologies.
C \2018\18-0: ITspecjiicahons\Dv 9 docx Division 9
Section 09872 - 5
Cured-in-Place Manhole Liner Svstem
2.2 LINER BAG
A. The liner bag shall be composed of four or more layers composed of E glass fiberglass. polyester felt, and a flexible nonporous PVC water and gas shield membrane. The flexible non-porous PVC water and gas shield shall be embedded between the structural layers of epoxy-fiberglass to guard against nicks, tears, and damage to the gas protection membrane.
B. The design ofthe liner bag shall be determined by the liner manulacturer and authorized installer to structurally resist hydrostatic loads. installation forces, and other loads that will be encountered during the life ofthe liner, as well as meet all specified design criteria. The liner manufacturer and authorized installer shall account lor any unusual conditions identified in the structure during the premanufacturing measurement and inspection. Designs for liner thickness shall be accepted by the ENCINEER. Acceptance by the ENGINEER of the liner thickness shall not affect the warrant) requirement.
2.3 REINFORCED ANGLE POINT BETWEEN THE MAINTENANCE HOLE
WALL AND BASE
2.1 A. The angle point between the maintenance hole wall and the base shall be reinforced with at least two extra layers of fiberglass and shall have a minimum completed composite thickness of six layers of fiberglass each with a minimum weight as required by the installation conditions.
EPOXY RESIN
A. The modified epoxy resin shall be two component 100% solids no VOC resin.
The resin and catalyst shall be pre-measured at the fbctory and shipped in separate color-coded part A and B pails. The resin shall bond to the existing manhole brick or concrete substrate and each layer ofthe fiberglass. polyester felt, and flexible PVC inner liner.
PART3- EXECUTION
3.I MAINTAINING WASTEWATER FLOWS
A. The Contractor shall be fully responsible for restricting the normal sewage flow through the manhole where the specified rehabilitation work demands such flow restriction or where a force main is entering a manhole in accordance with Section 02250. The Contractor will plan his work in order to maintain flows and not interrupt sewer service. This may include night work. The cost ofany night work required will be included in the contract price ofthe applicable item. The Contractor shall not perform work to manholes until plans for bypass pumping or flow restriction have been submitted and accepted by the City. Additionally, no plugging of existing Utility System Gravity Mains will be made without the approval of the City.
G \201 8\ I 8-02 I nsper ificarrons\Drv 9 docx Division 9
3.2 3.3
l..t
B. Unlined flow channel. Install a bridge or flow through tube and cut the liner bottom near the flow line in the channel to expose the flow channel and give access to the pipes.
FIELD MEASUREMENT AND INSPECTION OF MANHOLES
A. Manhole flow channel shall be protected at all times during the cleaning process and during the rehabilitation work by the Contractor. A temporary subfloor shall be constructed to keep debris from entering the flow channel.
B. Waterblast, field measure. and inspect the manholes before ordering materials.
SURFACE PREPARATION
A. The Contractor shall remove all the existing manhole steps. The metal portion ofall steps shallbe removed to within t/2" of the manhole interior wall surthce. The remaining protruding metal ponion ofthe step shall be covered with a cementitious material to provide a smooth surface on and around the protrusion for the liner to hond to.
B. Clean with high pressure water the manhole walls and base prior to the installation of the liner. Cleaning shall comply with SSPWC Section 502-3 Cleaning.
C. Surface preparation ofthe substrate shall be sufficient to achieve a concrete surface profile CSP 2 or higher as defined in the ICRI Cuideline No. 03732.
D. AII active structure infiltration shall be eliminated completely prior to liner application, using chemical grouting or other appropriate method, per NASSCO specifications. All active water leakage shall be stopped for a minimum of 30 minutes prior to installation to allow time to insert and pressurize the Liner. This prevents resin washout and allows proper curing and bonding. Leaks may be stopped with fast setting cement or chemical grout injection.
E. Remove and dispose off-site all debris produced during the rehabilitation process. Comply with all federal. state. and local regulations regarding disposal of debris. debris shall not be allowed to enter the pipeline.
CONCRETE AND EPOXY MORTAR REPLACEMENT
A. Contractor shall repair all manhole benches using fast setting concrete (Speed Plug by Euclid Chemical or approved equal). Bench shall be sloped so that water will flow back into the channel.
B. All openjoints. voids. holes. cracks, and missing bricks larger than 3 inches in diameter or equivalent shall be patched with a cementitious material to provide a smooth surface for the liner to bond. All loose, cracked or disintegrated material shall be removed from the area to be patched exposing a sound substrate. The cementitious patch material (Speed Plug by Euclid Chemical or approved equal) shall be allowed to cure according to the manufacturer's specifications before continuing with the Liner installation process.
G \201 8\ l8{2 I nspec rfications\Di! 9 do{x
Section 09872 - 6
Cured-in-Place Manhole Liner System
Division 9
Section 09872 - 7
Cured-in-Place Manhole Liner System
3.5 INSTALLATION AND FIELD INSPECTION:
A. Installation shall be in accordance with ASTM F3033 and in strict compliance with the Manufacturer's recommendations.
B. For Liner installation that does not include the channel, a temporary subfloor shall be constructed to keep the liner from inflating into the channel and to allow the sewer to flow unobstructed or A flow control device shall be installed to maintain the normal flow and isolate the bottom ofthe liner from the flow during installation of the liner.
C. Plywood and protective plastic shall be used around the maintenance hole to isolate the street surface liom the resin. Good housekeeping measures shall be employed. and any spilled resin shall be immediately cleaned up at the CONTRACTOR's expense.
D. Inspect each dry liner bag before installation to verify that the inspection tag, installation address, and the liner materials comply with Table l. Similarly, epoxy, urethane and other products shall be inspected, to confirm they match the approved submittals.
i.6
E. Both the inside and outside layers ofthe dry fiberglass liner shall be wet out separately with 100% solids. non-VOC, modified epoxy. There shall be no dry spols in either ol'the fiberglass liners.
F. The wet outliner, bottom. and six-layer reinforced angle section shall be installed per the manufacturer's standards and this section.
G. The wet outliner shall be inflated. heat cured with steam. and cooled with air per the liner manufacturer's standards.
H. The cured liner shall be cut out over the pipe channel leaving a slight flared edge. The top ofthe liner shall be cut offeven with the top ofthe riser ring. Any fins in the liner at the top of the rings shall be cut in a tapered fashion to allow a full 24-inch access to the manhole.
l. The top and bottom ofthe cuts shall be sealed with Sika Dur 31. or equal.
J. A cured flat sample ofthe liner and six-layer reinforced angle section shall be provided to the ENGINEER for each installation.
TESTING AND QUALITY CONTROL
A. Perform a spark test on each installed liner at a minimum of 15,000 volts per SSPWC Section 502-6.2.
B. The cured sample will be visually inspected by the ENGINEER to confirm thal the PVC barrier was installed between the layers offiberglass and that a minimum of four layers of fiberglass was installed and cured at the bottom angle of the manhole.
END OF SECTION 09872
G \201 8\ l8-02 I nS pec rticanons\Drv 9 do€x Division 9 Section 09875 - I
Epoxy Coating for Existing Concrete Wastewater Structures SE,CTION 09875
EPOXY COATING FOR EXISTING CONCRETE
WASTEWATER STRUCTURES
PART I - GENERAL
I.OI DESCRIPTION
This section covers all workmanship, materials and quality requirements for providing and applying a high-build epoxy coating for protecting concrete wastewater structures and manholes in order to eliminate infiltration and provide corrosion protection. This specification covers both epoxy coating for new structures and epoxy coating for repair of existing structures.
I.O2 RELATED SECTIONS
A. BENTONITE WATERPROOFINC: Section 07130
JOINT SEALERS: Section 07900
SURFACE PREPARATION FOR STEEL AND CONCRETE
SUBSTRUCTURES: Section 09879
I.O3 SCAQMDCOMPLIANCE
All coatings shall be in compliance with all South Coast Air Quality Management Owner requirements including volatile organic compounds (VOC).
I.O4 REFERENCES
GENERAL: The references indicated herein are a part of this section as specified and modified. In case ofconflict between the requirements ofthis section and those of the listed documents, the most stringent of the requirements shall govem.
Unless otherwise specified, references to documents shall mean the documents in effect at the time of receipt of bid proposals. If ref'erenced documents have been discontinued by the issuing organization, references to those documents shall mean the replacement documents issued or otherwise identified by that organization or, if there are no replacement documents. the last version of the document before it was discontinued.
Where document dates are given in the following listing, references to those documents shall mean the specific document version associated with that date. whether or not the document has been superseded by a version with a later date. discontinued, or replaced.
B
C
G \201 8\ l 8-02 lnspec rfications\Div 9 do{]( Division 9 Section 09875 - 2
Epoxy Coating for Existing Concrete Wastewater Structures Referenced publications found within this specification shall be the latest revision unless otherwise specified; and applicable parts ofthe relerenced publications shall become a part of this specification as if fully included.
B. REFERENCE STANDARDS:
A. ASTM D638 - Tensile Properties of Plastics.
B. ASTM D79O - Flexural Properties ol Unreinforced and Reinforced Plastics.
C. ASTM D695 - Compressive Properties olRigid Plastics.
D. ASTM D4541 - Pull-off Strength of Coatings Using a Portable Adhesion Tester.
L. ASTM - The published standards ofthe American Society for Testing and Materials. West Conshohocken. PA.
- The published standards of National Association of
Corrosion Engineers (NACE International).
Houston, TX.
N. NACE - RP0892-92 - Standard Recommended Practice.
"Lining Over Concrete in Immersion Service".
- The published standards ofthe Society ofProtective
Coatings. Pittsburgh, PA.
O. SSPC
C:\20 I 8\l 8-02 lnspecilicatrons\Drv 9 do€x Division 9 E. ASTM D2584 - Volatile Matter Content.
F. ASTM D22409 - Durometer Hardness, Type D.
G. ASTM D543 - Resistance of Plastics to Chemical Reagents.
H. ASTM Cl09 - Compressive Strength Hydraulic Cement Mortars.
I. ASTM C396 - Compressive Strength of Cement Mortars.
J. ACI 506.2-77 - Specifications for Materials, Proportioning, and Application of shotcrete.
K. ASTM C579 - Compressive Strength of Chemically Setting Silicate and Silica Chemical Resistant Mortars.
M. NACE
Section 09875 - 3
Epoxy Coating for Existing Concrete Wastewater Structures I.O5 QUALITY ASSURANCE
INSPECTION BY OWNER OR OWNER: AII materials fumished and all work accomplished under the Contract shall be subject to inspection by the Owner. The Contractor shall be held strictly to the true intent of the Specifications in regard to quality of materials, workmanship, and diligent execution olthe requirements ofthe Contract.
Except as otherwise provided herein, the cost of inspection will be paid by the Owner.
FIELD TESTS: The Owner will make, or have made, such tests as he deems necessary to assure the work is being accomplished in accordance with the requirements of the Contract. Unless otherwise specified in the Special Requirements, the cost ofsuch testing will be borne by the Owner.
In the event such tests reveal non-compliance with the requirements ofthe Contact. the Contractor shall bear the cost of such corrective measures deemed necessary by the Owner. as well as the cost ofsubsequent retesting.
It is understood and agreed the making of tests shall not constitute an acceptance of any portion of the work, nor relieve the contractor from compliance with the terms of the Contract.
D. OTHER QUALTTY ASSURANCE REQUIREMENTS:
Do not use or retain contaminated. outdated. or diluted materials for resurfacing. Do not use materials from previously opened containers.
Use only products ofthe approved Manufacturer. Use products of one manufacturer in any one resurfacing system with compatible materials. Provide same material product for touch-up as for original material.
If any requirements of this specification conflict with a referenced standard, the more stringent requirement shallapply.
Make available all locations and phases of the work for access by the Owner or other personnel designated by the Owner. The Contractor shall provide ventilation and egress to safely access the coating work areas for inspection.
B
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4 G \2018\ l8-02lnspecificarrons\Dr! 9 docx Division 9
GENERAL: Quality assurance procedures and practices shall be used to monitor all phases of surface preparation, application and inspection throughout the duration of the project. Procedures or practices not specifically defined herein may be used provided they meet recognized and acceptable professional standards and are approved by the Owner.
Section 09875 - 4
Epoxy Coating for Existing Concrete Wastewater Structures Conduct work so that the resurfacing system is installed as specified herein. Inspect work continually to ensure that the resurfacing system is installed as specified herein. The Contractor shall inspect the work to determine conlbrmance with the specifications and relerenced documents. The Contractor shall inform the Owner of the progress and the quality of the work through daily reports as specified below. Any nonconforming coating system r.r,ork shall be corrected as specified herein or as recommended by the
Manufacturer.
Summarize test data, work progress. areas covered. ambient conditions, quality control inspection test findings, and other information pertinent to the resurf'acing system installation in daily reports to be submitted to the Owner or the Owner's Representative.
The methods of construction shall be in accordance with all requirements of this specifi cation.
Employ only trades people who have at least three years of experience performing resurfacing work of similar size and complexity as the work specified in this Section. Submittals to verifo these qualifications are to be made within thirty (30) days of the Notice-to-Proceed and are subject to approval by the Owner.
The Specified System is the minimum standard of quality for this project. Submissions ol alternative manufacturers shall be in accordance with provisions stated in the Special Requirements.
I.06 PRE-COATINGCONFERENCE
A Pre-Coating Conference shall be scheduled prior to stan ofproject. The Owner. Contractor. Coating Manufacturer's representative and Owner shall be present. A schedule olwork to be accomplished and a Iist of labor. material and equipment rates for additional work will be established and maintained throughout the project. Contractor shall fumish submittal data per Section 01340. Resumes ofpersonnel to be used on the project shallbe submitted.
The Contractor shall submit. prior to the Pre-Coating Conference, manufacturers' literature and Material Safety Data Sheets on all materials to be used in coating and painting operations, including, but not limited to coatings, paints, thinners, solvents and cleaning fluids per Section 0 t 340.
Contractor shall maintain copies of submittal data atjobsite at all times. f
6 7
8 9
G \201 8\ I 8-02 I nspecr lications\Drv 9 docx Division 9 B.
Section 09875 - 5
Epoxy Coating for Existing Concrete Wastewater Structures I.O7 SUBMITTALS
A GENERAL: Submit shop drawings, coating data and related information in accordance with Section 0l 340.
TECHNICAL DATA SHE,ETS: Submit technical data sheet on each product used, including ASTM test results indicating the product conforms to and is suitable for its intended use per these specifications.
C. MSDS: Submit Material Safety Data Sheets (MSDS) for each product used.
D. GUIDELINES: Project specific guidelines and recommendations.
E. APPLICATORQUALIFICATIONS:
Manuf'acturer certification that Applicator has been trained and approved in the handling. mixing and application oIthe products to be used.
Certification by the protective coating manufacturer that the equipment to be used for applying the products has been approved and Applicator personnel have been trained and certified for proper use of the equipment.
Five (5) recent references ofApplicator (projects of similar size and scope) indicating successful application of a high-build solvent-tiee epox) coating by spray application.
Proof of any necessary federal. state or local permits or licenses necessary for the project.
Submit applicator's certification that resurfacing materials comply with Federal, State, and Local regulations for VOC (Volatile Organic Compounds).
Submit letter(s) with associated product data signed by Manufacturer certirying that submitted products are suitable for application on the surfaces to be resurfaced and for the service conditions.
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7 C \201 8\ l 8-02l nspec itjcatrons\Div 9 docr Division 9 Submit daily reports that contain the following information:
substrate conditions. ambient conditions. application procedures. work completed and location thereof. Mark-up drawings that show location of work.
Section 09875 - 6
Epoxy Coating for Existing Concrete Wastewater Structures DESIGN DETAILS: Submit design details for any additional ancillary systems and equipment to be used in site and surface preparation, application and testing.
I.O8 DELIVERY AND STORAGE
GENERAL: Materials shall be stored in accordance with Manufacturer's recommendations in enclosed structures and shall be protected flom weather and adverse temperature conditions. Flammable materials shall be stored in accordance with state and local codes. Materials exceeding storage life recommended by the manufacturer shall be removed from the site.
STORAGE: Store all materials only in area or areas designated by the Owner solely for this purpose. Confine mixing, thinning, clean-up and associated operations, and storage of materials-related debris before authorized disposal, to these areas. All materials are to be stored on pallets or similar storage/handling skids offthe ground in sheltered areas in which the temperature is maintained between 50oF and 90'F.
DISPOSAL: Contractor shall be responsible for legal disposal ofmaterials.
Do not use floor drains, dikes or storm drains for disposal of resurfacing system materials.
PRECAUTIONS AGAINST HAZARDS: The Contractor shall take all precautions and implement all measures necessary to avert potential hazards associated with the resurfacing system materials as described on the pertinent Material Safety Data Sheets or container labels.
E DELIVERED MATERIALS: Deliver all materials to the jobsite in their original. unopened containers. Each container shall bear the Manufacturer's name and label.
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D
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Labels on all
information:
material containers must show the following
Name or title of product.
Federal Specification Number if applicable.
Manufacturer's batch number and date of manufacture.
Manufacturer's name.
Division 9
MIXING: Mix all resurfacing materials in an enclosed mixing area designated by the Owner. This enclosed area must protect the mixing operation and materials from direct sunlight. inclement weather, freezing, or other means ofdamage or contamination. Protect all other concrete and metallic surfaces and finishes from any spillage of material(s) within the mixing area.
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c.
d.
C U0 l8\ I 8-02 I nspec r ficatrons',Div 9 docx
e.
f.
c.
h.
Section 09875 - 7
Epoxy Coating for Existing Concrete Wastewater Structures Generic type of material.
Application and mixing instructions.
Hazardous material identifi cation label.
Shelf life date.
Storage requirements.
All containers shall be clearly marked indicating any personnel safety hazards associated with the use of or exposure to the materials.
2 l
,l
5 Resurfacing material storage and mixing areas shall be designated by the Owner.
Do nol use or retain contaminated. outdated. prematurely opened. diluted materials. or materials which have exceeded their shelf lil-e.
COMPLIANCE WITH STANDARDS: The Contractor's work forces should comply with the provisions outlined in the following documents:
I.O9 SAFETY
I
2 3
SSPC.PA.3
NACE Pub.
OSHA
"A Guide to Safety in Paint Application"
"A Manual for Painter Safety"
1915.35 Standards-29CFR - Painting Saf'ety
I}
('
SAFETY EQUIPMENT: The Contractor shall provide personnel with all safety equipment necessary to protect them during any phase ofthe work.
This shall include. but not be limited to. safety glasses. goggles. earplugs. hard hats. steel toed work shoes. appropriate personal protective clothing. gloves. and plant approved escape respirators (where required).
FLAMMABLE MATERIALS: Keep any flammable materials such as cleaning solvents, thinners, or resurfacing materials away from open flames' sparks or temperatures higher than l5OoF. Drums containing flammable materials will be grounded. No solvent in any quantity shall be allowed inside containment enclosures or permitted confined spaces at any time during resurfac ing work.
POWER TOOLS: Power tools are to be in good working order to avoid open sparking. No spark producing tools shall be utilized in restricted areas as indicated herein.
I)
Division 9
All materials shall be handled and stored to prevent damage or loss of label.
G \201 8\ I 842 I nspec r ficarrons\Dr! 9 d()!r
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Section 09875 - 8
Epoxy Coating for Existing Concrete Wastewater Structures FIRE PROOFING: The Contractor shall fireproof all work areas by maintaining a clean work area and having Underwriter's Laboratories approved fire extinguishers on-hand. The Contractor shall furnish these fire extinguishers.
ABRASIVE BLASTING: Workers doing abrasive blasting operations shall wear a fresh air supplied protective helmet and hood and personal protective clothing acceptable to industry standards and all govemment regulations.
DISPOSAL OF RAGS: Dispose of rags used for wiping up resurfacing materials, solvents, and thinners by drenching them with water and placing in a metal container with a tight fitting metal cover. Complete this disposal process at the end of each day. Final disposal of these materials is the Contractor's responsibi lity.
FLAMES AND SPARK REQUIREMENTS: Matches. smoking, flames, or sparks resulting from any source including welding, must be remote from the work area during coating work. Smoking is permitted only in designated areas of the plant.
NEW STRUCTURES: The coating shall carry an extended warranty for a two-year period from the date ofacceptance. All warranties shall be turned into the Owner prior to project acceptance. Contractor shall, within a reasonable time after receipt of written notice thereot. repair defects in materials or workmanship which may develop during said two (2) year period. and any damage to other work caused by such defects or the repairing of same. at his own expense and without cost to the Owner.
EXISTING STRUCTURES: The coating shall carry a warranty fbr a oneyear period from the date of acceptance. All warranties shall be handed over to the Owner prior to project acceptance. Contractor shall. within a reasonable time alter receipt of written notice thereof. repair defects in materials or workmanship which may develop during said one (l) year period. and any damage to other work caused by such delects or the repairing ofsame. at his own expense and without cost to the Owner.
C C0l8\ 18-021nspecrficanons\Drv I docx
E.
I.IO WARRANTY
B.
Division 9
PART 2 _ PRODUCTS
2.OI MANUFACTURERS
A. APPROVED MANUFACTURERS: New or Existing Structures
I . Raven Lining Systems.
2. Quadex Structure Guard.
2.02 MATERIALS
Section 09875 - 9
Epoxy Coating for Existing Concrete Wastewater Structures EPOXY LINING SYSTEM: The epoxy lining system shall be a high-build. 100% solids. solvent-free epoxy system.
MATERIALS TESTING REQUIREMENTS: Materials specified shall have been tested in a Severe Accelerated Wastewater Test. Submit evidence of successful test results to Owner.
C. SEALANTS: Refer to Section 07920
ABRASIVE BLAST MEDIA: [f dry or wet abrasive blast cleaning is the selected method of surface preparation, provide slag grit of a sieve size, gradation, and quality necessary to produce the degree of cleanliness and surface profile required herein (ICRI Guideline 03732. CSP-5 or greater and SSPC-SP t 3,rNACE No. 6).
REPAIR MATERIALS: Repair materials shall be used to fill voids. structurally reinforce and/or rebuild surfaces, etc. as determined necessary by the Owner and protective coating applicator. Repair materials must be compatible with the specified epoxy coating and shall be applied in accordance with the manufacturer's recommendations.
PART 3 _ EXECUTION
3.OI GENERAL
A. HOISTING. SCAFFOLDING. STAGING. AND PLANKING:
Provide, set-up, and maintain all required hoists. scaffolds, and staging and planking. and perform all access related hoisting work required to complete the work of this section as indicated and specified.
Scaffolds shall have solid backs and floors to prevent dropping materials from there to the floors or ground below.
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2. G \101 8\ 1 8-01 lnspec r ficarrons\Drv 9 docx Division 9 ENVIRONMENTAL REQUIREMENTS:
I . Comply with the Manufacturer's recommendations as to environmental conditions under which resurfacing system materials can be applied.
2. Do not apply resurfacing system materials when dust is in work site.
3. The Contractor shall provide all temporary lighting during the work.
PROTECTION:
Cover or otherwise protect finish work or other surfaces not being resurfaced.
INITIAL INSPECTION OF SURFACES TO BE COATED: It is the
responsibility ofthe Contractor to inspect and report unacceptable concrete substrate surface conditions to the Owner prior to the commencement of surface preparation activities. Unacceptable surface conditions are defined as the presence of cracked surfaces or concrete deteriorated to a depth of greater than 1" or otherwise unable to withstand surface preparation as specified herein.
THINNERS AND SOLVENTS: The Contractor shall use only solvents and thinners as recommended by the Manufacturer.
3.02 ACCEPTABLEAPPLICATORS
TRAINING: Applicators shall be trained to properly apply the coating according to manufacturer's recommendations.
APPLICATOR CERTIFICATION: Protective coating must be applied by a Certified applicator ofthe protective coating manufacturer and according to manufacturer specifi cations.
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B
Division 9
Section 09875 - l0
Epoxy Coating for Existing Concrete Wastewater Structures Erect and maintain protective tarps. enclosures and/or maskings to contain debris (such as dust or airborne particles resulting from surface preparation) generated during any and all work activities.
This includes. but is not limited to. the use ofdust/debris collection apparatus as required.
G U0l 8\l 8-02 I nspec,fi catrons\D'v 9 docx
Section09875-ll
Epoxy Coating for Existing Concrete Wastewater Structures 3-03 CTJRING OF NEW CONCRETE
Portland cement or new concrete must be well cured (28 days minimum) prior to application ofthe protective coating. Contractor shall account for this curing time in his bid proposal, and no additional Contract Time extension will be allowed therefore.
3.04 SURFACE PREPARATION REQUIREMENTS
GENERAL: The following general requirements shall apply to all surface preparation:
Applicator shall inspect all surfaces specified to receive a protective coating prior to surface preparation. Applicator shall notify Owner ofany noticeable disparity in the surfhces which may interfere with the proper preparation or application of the specified protective coating.
All contaminants including: oils, grease. unsound or incompatible existing coatings. waxes. form release, curing compounds. efflorescence. sealers, salts, or other contaminants shall be removed.
All specified surface preparation shall be perfbrmed in accordance with the latest version of the SSPC. NACE, ICRI and other standards relerenced in this section.
Concrete surfaces shall be abraded to produce a minimum surface profile as recommended by the coating manufacturer. This preparation will be followed by vacuum cleaning to remove all dust. dirt or fiiable substances leaving clean, dust lree surfaces for resurfacing as detailed in SSPC-SP I 3,A.,JACE No. 6).
The air used fbr blast cleaning shall be free of oil and moisture to not cause contamination ofthe surfaces to be resurfaced.
Clean cloths and clean fluids shall be used in solvent cleaning.
Cleaning and resurfacing shall be scheduled so that dust and other contaminants from the cleaning process will not fall on wet, newly resurfaced areas.
Prepare concrete joint and install sealant following resurfacing material installation per Section 07920.
Verift dryness by testing for moisture in accordance with ASTM D4263 and ASTM F 1869.
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9 G u0 I 8\ I 8-021nsper ilicalons\Div 9 docx Division 9 A.
2. 6.
7. Section 09875 - l2
Epoxy Coating for Existing Concrete Wastewater Structures INITIAL CLEANING/DECONTAMINATION :
All existing areas to be repaired shall be pressure washed with alkaline -based detergent to remove all loose materials. acid conslituents. grease- oil. and other contaminants.
Veri! that the pH of the cleaned concrete surfaces to be coated is within the range of to 8 to I l. Application of coating materials outside this range will not be permitted without written approval from the Owner.
Used or spent blast abrasive shall not be reused on work covered by this section.
The compressed air used for blast cleaning will be filtered free of condensed water or oil. Moisture traps will be cleaned at least once every four hours or more frequently as is appropriate.
Oil separators shall be installed just downstream of compressor discharge valves and at the discharge ofthe blast pot discharges. Oil separators shall be cleaned at least once every four hours or more frequently as is appropriate.
Regulators, gauges. filters, and separators will be in good working order for all ol the compressor air lines to blasting nozzles at all times during this work.
An air dryer or drying unit shall be installed which dries the compressed air prior to blast connections. This dryer shall be used and maintained for the duration of surface preparation work.
The quality, volume, and velocity of life support and ventilation air used during surface preparation shall be in accordance with applicable safety standards and as required to ensure adequate visibility and proper dissipation of volatiles without impacting the prepared surface or the health ofthe public or personnel working for the Contractor. Subcontractors. Owner, Owner's representatives. or anyone who may be affected by on-site maintenance coating work activities.
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7 G \20 I 8\ I 8 -02 lnspec rficatrons\Dr! 9 docx Division 9 I
C. ABRASIVE BLAST CLEANING
A paper blotter test shall be performed by the Contractor when requested by the Owner or the Owner's representative to determine if the air is sufficiently fiee of oil and moisture (Reference ASTM D 428s).
I
5. 8
Section 09875 - l3
Epoxy Coating for Existing Concrete Wastewater Structures The abrasive blast nozzles used shall be the venturi or other high velocity type supplied with the minimum air pressure and the necessary volume to obtain the required specified degree of cleanliness.
The Contractor must provide adequate ventilation for airbome particulate evacuation and lighting (meeting all pertinent safety standards) to optimize visibility for both blast cleaning and observation ofthe substrate during surface preparation work.
All phases of surface preparation work specified herein must be inspected by the Owner before the Contractor proceeds with the subsequent phase of surface preparation.
If, between final surface preparation work and coating application, contamination ofthe prepared and cleaned substrate occurs, or if the prepared concrete's appearance darkens or changes color, reblasting will be required until the specified degree of cleanliness is established.
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3.05 SPECIFIC SURFACEPREPARATION REQUIREMENTS
A. SPECIFIC REQUIREMENTS: In addition to the paragraph 3.04 requirements. the Contractor shall follow the requirements of this section.
B. TERMINATIONS: Where the coating is specified to be terminated. the Contractor shall prepare and apply materials per the Manufacturer's recommendations.
C. PENETRATIONS: For applications around penetrations and/or drains' the contractor shall prepare and apply coatings in accordance with Manufacture/s recommendations. Allhardware mounting bolts or studs shall be in place and masked with the hardware removed for the coating process. The coating shall contact the mounting bolts/studs so no break in the coating willoccur.
D. FLOOR PITCH: When the floor area is scheduled to receive a mortar application to pitch the floor. the walls above the floor shall be saw'cut to a depth of l/2 inch at a height from 0'-0" to 0'-6" above the floor. Thecutshall be straight and level.
E. REPAIR WORK: All existing failing coating shall be removed by abrasive blasting. or by hand and power tools back to sound tighl coating and substrate.
Repair areas shall be uniform in shape and tapered into adjacent' intact and sound lining a minimum of three (3) inches. Sound lining is defined as a coating that cannot be lifted with a dull putty knit'e. Sunounding tight coating shall be scarified at overlap areas ofthe repair. Owner's representative shall approve all surface preparation for repair work prior to application of the epoxy coatings.
C \2018\ l8{21nsp€crlicatrcns\DN 9 docx Division 9
I
Section 09875 - l4
Epoxy Coating for Existing Concrete Wastewater Structures NOTIFICATION TO OWNER: The Contractor shall notifu the Owner should jobsite conditions prevent the above operations and/or applications.
3.06 APPLICATION REQUTREMENTS
GENERAL:
the project:
The following general application requirements shall apply to Application procedures shall conform to the recommendations ofthe protective coating manufacturer, including material handling, mixing. environmental controls during application, safety. and spray equipment.
When spray equipment is used. the spray equipment shall be specifically designed to accurately ratio and apply the specified protective coating materials and shall be regularly maintained and in proper working order.
Ensure straight, even termination of resurfacing/topcoat materials on wall edges and flush with embedded steel.
The Contractor must follow the minimum and maximum recoat limitation times and related temperature range restrictions between successive lifts for all products specified herein per Manufacturer's stated requirements.
All equipment and procedures used for resurfacing system application shall be as recommended by the Manufacturer.
Unless specified elsewhere herein, the Contractor shall comply with the Manufacturer's most recent written instructions with respect to the following:
Mixing of All Materials.
Protection and Handling of All Materials.
Recoat Limitation and Cure Times.
Minimum Ambient and Substrate Temperatures, Substrate's Degree of Dryness. Relative Humidity, and Dew Point of
Air.
Application.
Final Curing.
Use of Proper Application Equipment.
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C U0l8\ 18-021nspecrlicatrcns\Di! 9 docx Division 9
Areas not to be resurfaced shall be masked using duct tape or other protection materials to prevent these surfaces from being resurfaced.
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3. 4.
5. 6.
a.
b.
c.
d.
f.
8 Section 09875 - l5
Epoxy Coating for Existing Concrete Wastewater Structures Curing of Resurfacing System: The applied resurfacing system shall be protected from damage during curing and shall be cured as recommended by the Manufacturer. Ambient conditions shall be controlled by the Contractor during curing to ensure the minimum air temperature and minimum relative humidity as required by the Manufacturer is maintained.
CHEMICAL RESISTANT LINING: The following shall apply to the specified Tnemec Coating System:
General Note: The Contractor is advised that with all thick-fi1m. quick curing materials applied to concrete surfaces. outgassing of the concrete may occur. Possible remedies include applying materials when the temperature of the concrete surfaces is descending. or applying athin (l/16") layer ofthe specified surfacing material. Other remedies may exist, and may be submitted for the Owner's approval.
Fill all voids, bugholes and other surface imperlections with Tnemec Series 21 8 MortarClad as needed.
Apply Tnemec Series 434 Perma-Shield H:S chemical resistant mortar to all floor areas and walls scheduled to be coated at a nominal thickness of 125 mils. Application shall be either by trowel or spray.
If spray-applied, material shall be finish-troweled and finish-rolled (Refbrence manufacturers application guides for explicit instructions).
Series 435 Perma-Glaze shall be a minimum of 15.0 mils thick upon cure regardless ofthe number ofcoats required.
)
3 C SAFETY AND VENTILATION REQUIREMENTS: Requirements for safety and ventilation shall be in accordance with SSPC Paint Application Cuide No. 3.
3.07 SPECIFIED APPLICATION THICKNESS
All interior surfaces ofthe wet well. diversion structure andjunction manhole shall be coated as specified with a nominal dry film thickness of 125 mils.
3.08 FIELD QUALITY CONTROL INSPECTION AND TESTING
INSPECTION BY OWNER: Inspection by the Owner or others does not limit the Contractor's respon sibilities for quality control inspection and testing as specified herein or as required by the Manufacturer's instructions.
G \201 8\ I 8-02 I nspecr ficanons\Drv 9 docx Division 9 B.
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5 Section 09875 - l6
Epoxy Coating for Existing Concrete Wastewater Structures QUALITY CONTROL PROCEDURES: Perform the quality control procedures listed below in conjunction with the requirements of this Section.
Inspect all materials upon receipt to ensure that all are supplied by the Manufacturer.
Provide specified storage conditions for the resurfacing system materials, solvents, and abrasives.
Inspect and record findings for the degree of cleanliness of substrates used. The pH ofthe concrete substrate will be measured using pH indicating papers. pH testing is to be performed once every 50 sq. ft. Acceptable pH values shall be between 8.0 and 1 1.0 as measured by a full-range (l-12) color indicating pH paper with readable color calibrations and a scale at whole numbers (minimum). Use Hydrion lnsta-Check Jumbo 0-13 or I -12 or equal.
The paper shall be touched to the surface once using moderate gloved finger pressure. The surface shall not be wiped or moved laterally to disturb the surface during pH testing. Following the one touch, lift the paper vertically to not "wipe" the surface. Compare the color indicated with the scale provided and record the pH.
Inspect and record substrate profile (anchor pattern). Surfaces shall be abraded, as a minimum. equal to the roughness ofCSP-5 tCRl Guideline 03732.
Measure and record ambient air temperature once every two hours ofeach shift using a thermometer and measure and record substrate temperature once every two hours using a surface thermometer.
Measure and record relative humidity every two hours ofeach shift using a sling psychrometer in accordance with ASTM E337. lnspect and record that the "pot life" of resurfacing materials is not exceeded during installation.
Veri! curing of the resurfhcing materials in accordance with the M an u lacturer's i n struc l.ions.
t0 Upon full cure. the installed lining system shall be checked by high voltage spark detection in accordance with NACE RP0l88-90, and the manufacturer's printed application guide to verifo a pinhole-free 5 6
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G \?0 I 8\ I 8-02 I 7,Spec
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ficatrons\Dr v 9 docx Division 9
Provide correct mixing ol resurf'acing materials in accordance with the Manu facturer's instructions.
4. I l.
Section 09875 - l7
Epoxy Coating for Existing Concrete Wastewater Structures surface. Areas which do not pass the spark detection test shall be corrected at no cost to the Owner and rechecked
Upon completion olthe lining system installation, the lined area shall be cleaned and prepared to permit close visual inspection by the Owner. Any and all deficiencies or defective work (not in compliance with this section or related sections) will be marked for repair or removal/replacement by the Contractor at no additional cost to the Owner.
C
2 TESTING: The following testing requirements shall apply as determined by the Owner.
During application a wet film thickness gage. such as those available through Paul N. Gardner Company, lnc. meeting ASTM D4414 - Standard Practice for Measurement of Wet Film Thickness of Organic Coatings by Notched Gages. shall be used to ensure a monolithic coating and uniform thickness during application.
After the protective coating has set hard to the touch it shall be inspected with high-voltage holiday detection equipment. Surfaces shall first be dried. an induced holiday shall then be made on to the coated concrete surface and shall serve to determine the minimum/maximum voltage to be used to test the coating for holidays at that particular area. The spark tester shall be initially set at 100 volts per I mil (25 microns) of film thickness applied but may be adjusted as necessary to detect the induced holiday (refer to NACE RPOl88-99). All detected holidays shall be marked and repaired by abrading the coating surface with grit disk paper or other hand tooling method. After abrading and cleaning. additional protective coating material can be hand applied to the repair area.
All touch-up/repair procedures shall follow the protective coating manufacturer's recommendations.
Measurement of bond strength of the protective coating to the substrate can be made at regular intervals and along dilferent sections ofthe structure (i.e. crown ofpipe. wall. invert - every 200 ft). Bond strength can be measured in accordance with ASTM D4541. Any areas detected to have inadequate bond strength shall be evaluated by the Owner. Further bond tests may be performed in that area to determine the extent ofpotentially deficient bonded area and repairs shall be made by Applicator in strict accordance with manufacturer's recommendations.
A final visual inspection shall be made by the Inspector and manufacturer's representative. Any deficiencies in the flnished -l
1 G \:01 8\ I 8-02 I 7\Spec r ticalions\Drv 9 docx Division 9 Section 09875 - l8
Epoxy Coating for Existing Concrete Wastewater Structures coating shall be marked and repaired according to the procedures set forth herein by Applicator.
3.09 ACCEPTANCECRITERIA
ACCEPTANCE CRITERIA FOR SURfACE PREPARATION WORK:
All surfaces shall be prepared in accordance with the specification and referenced standards therein.
B ACCEPTANCE CRITERIA FOR COATING SYSTEM APPLICATION
WORK: The following acceptance criteria for applicant work shall apply:
l. Acceptable coating work will be based upon the following:
No pock-marks, trowel marks, depressions, unconsolidated areas. waviness or ridges, pinholes or holidays in either size or frequency.
No intercoat bond failures between lifts.
Proper curing of coatings.
a
b
c
2. Resurfaced areas shall pitch to drains
There shall be no areas that puddle when flood tested.
The Owner or Owner's representative shall, at their discretion. inspect the following:
Profile and degree of cleanliness of substrate.
Thickness of materials/coverage rate confi rmation.
Ambient temperature and humidity requirements and
substrate temperature.
Curing and recoat times.
Proper curing ofthe resurfacing materials.
Rework required on any holidays or any other inadequacies found by the Owner or the Owner's representative in the quality of the coating work shall be marked. Such areas shall be recleaned and reworked by the Contractor according to these specifications and the manufacturer's recommendations at no additional cost to the Owner.
The Contractor is responsible for keeping the Owner inlormed ofall progress so that inspection for quality can be achieved.
The Contractor is ultimately responsible for the quality performance ofthe applied materials and workmanship. Inspections by the Owner or the Owner's representative do not limit this responsibility.
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G \1018\ I 8-021 nspec r licanons\Dr! 9 doc\ Division 9
5. Section 09875 - l9
Epoxy Coating for Existing Concrete Wastewater Structures
3.IO FINAI, INSPECTION
Perform a final inspection to determine whether the resurfacing system work meets the requirements of the specifications. The Owner, the Contractor and the Manufacturer's representative will conduct the final inspection.
3.II CLEANUP
Upon completion of work, the Contractor shall remove surplus materials. equipment. protective coverings. and accumulated rubbish. and thoroughly clean all surfaces and repair any work-related damage. The surrounding surface areas including roadways and all other surfaces shall be restored to their pre-project condition.
3.I2 SERVICES OF MANUFACTURERS
CENERAL: The services described herein are for the field observation, inspection assistance and quality control tbr the specified coating applications.
For purposes of this paragraph, a work day is defined as an 8-hour period at the site. excluding travel time. The Owner may require that the Manufacturer's services described herein be fumished in twelve ( l2) separate trips. Four (4) hours or less at the jobsite will be considered as one-half ( l/2) ofa working day.
MANUFACTURER'S ATTENDANCE JOBSITE: The service
representative(s) of the manufacturer shall be present at the site during all major phases ofthe work (surface preparation, surface application, inspection and testing, etc.). for each facility or structure receiving the specified coating.
For purposes ofthis specification: I ) Eighl (8) working days ofmanufacturer's anendance at thejobsite shall be required for epoxy coating ofnew structures' 2) Four (4) working days of manufacturer's attendance at thejobsite shall be required for epoxy coating repairs to existing slructures.
END OF SECTION 09875
B
C U0l 8\ I 8-02 lnspe( r ticalrons\Drv 9 docx Division 9 Appendix A
City of Imperial
Public Works Department
Standard Detail No.200
PAMREX 36- COI/ER AND
FR LE VARI(ED SlNn Fr
SE\TER.,
tNsr LL A l'-0' t{roE. 1'-0-
OEEP COI.{CRETE RIN6
CIRCUI/FERENTIALLY
AROUT{D IHE MAI.IHOLE
FRA}TE- PTACE THE CONCRETE
R|NC r,/2' BELoy PAVEUENT.
4500 P.S.r. COIP. SIRENGTH
OUTLET PIPE
INLEI PIPE
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PIACE CRAD€ RINCS AS
REQUIRED TO ADJUST IHE
MANIOLE CO/ER TO GRADE.
PRECAST CORCRE]E
JOINTS IT{SIDE ANO
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PRECAST CO CREIE
CONES AND SIIAFTS PLAN
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GROUI ANULAR SPACE
CREA-IED EOR SEYER
PIPEUNE
0.05'Mt .oRoP
BEIWEEN IIIE PIPES
PLACE CRAVEL TO
THE TPPROPIATE GRADE
5'-o" 0rA
SECTION
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36 APPLY Two (2) co rs oF
RAVEN 4O5 - RAVEN UNINC
SYSTEY OR APPROVEO EOUAL
TWO ,r{) MrL CO rS (E0 MrL
TOTAL FOR) AL SURFACES.
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VARIES
PIPEUNE
P.C.C. SHELF
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GRO('T ANNULAR
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FOR SEYER
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MANliolI DETAIL
0 TE tolrolrs
City of lmperial
Public Works Department
Existing Manhole lnformation and Photographs
Appendix B
CIW OF IMPERIAT
MANHOLE AND tIFT STATION REHABII-ITATION AND NEW MANHOTE INSTATTATION BtD NO. 2025-01
Manhole #28 (Located at 3'd St and E Street intersection) Diameter - 4 ft
Depth - I ft
8" diameter gravity sewer upstream flows
I
I
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I
I
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I
I
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View within MH #28 to be rehabilitated.
CITY OF IMPERIAT
MANHOIE AND LIFT STATION REHABILITATION AND NEW MANHOLE INSTATLATION BrD NO. 2025-01
Manhole #42 (Located at 3'd St and G Street intersection) Diameter - 4 ft
Depth - I ft
8" diameter gravity sewer upstream flows
View within MH #42 to be rehabilitated.
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{
,
Manhole #51 (Located at 3'd St and H Street intersection) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
View within MH #51 to be rehabilitated
CIW OF IMPERIAT
MANHOTE AND LIFT STATION REHABITITATION AND NEW MANHOTE INSTATTATION BtD NO. 2025-01
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Manhole #54 (Located in South lmperial Avenue at 1"r Street) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
View within MH #54 to be rehabilitated
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MANHOLE AND TIFT STATION REHABITITATION AND NEW MANHOLE INSTATTATION BID NO. 2025-01
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MANHOLE AND LIFT STATION REHABILITATION AND NEW MANHOLE INSTATLATION BID NO. 2025-01
Manhole #55 (Located in South lmperial Avenue at 2"" Street) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
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View within MH #55 to be rehabilitated.
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CITY OF IMPERIAT
MANHOLE AND tIFT STATION REHABITITATION AND NEW MANHOLE INSTATLATION BrD NO. 2025-01
Manhole #56 (Located in South lmperial Avenue at 3'd Street) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
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View wrthin MH #56 to be rehabilitated.
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MANHOTE AND tIFT STATION REHAEITITATION AND NEW MANHOLE INSTATLATION BtD NO. 2025-01
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View within Manhole lD No. "CO-60" which includes a sewer cleanout located within a 4' diameter brick sewer manhole. Brick manhole and cleanout are to be removed and replaced as a 48-inch diameter flow-through precast manhole per City of lmperial Std. Det. 200.
Manhole #CO-60 (Located in South lmperial Avenue at 4th Street) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
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CITY OF IMPERIAL
MANHOLE AND tIFT STATION REHABITITATION AND NEW MANHO[E INSTATTATION BtD NO. 2025-01
Manhole #58 (Located in South lmperial Avenue at 51h Street) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
View within MH #58 to be rehabilitated.
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MANHOLE AND LIFT STATION REHABITITATION AND NEW MANHOTE INSTATLATION BrD NO. 2025-01
Manhole #59 (Located in South lmperial Avenue at 61h Street) Diameter - 4 ft
Depth - I ft
8" diameter gravity sewer upstream flows
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View within MH #59 to be rehabilitated.
CITY OF IMPERIAT
MANHOTE AND TIFT STATION REHABITITATION AND NEW MANHOLE INSTALLATION BtD NO. 2025-01
Manhole #60 (Located in South lmperial Avenue at 7'h Street) Diameter - 4 ft
Depth - 8 ft
8" diameter gravity sewer upstream flows
View within MH #60 to be rehabilitated.
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CITY OF IMPERIAT
MANHOTE AND tIFT STATION REHABITITATION AND NEW MANHOLE INSTALTATION BtD NO. 2025-01
Manhole #348 (Located in South P Street between 3'd St and E Barioni Blvd) Diameter - 4 ft
Depth - 8.5 ft
21 " diameter gravity sewer upstream flows
View within lVlH #348 to be rehabilitated.
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CIW OF IMPERIAT
MANHOLE AND TIFT STATION REHABITITATION AND NEW MANHOLE INSTATLATION BtD NO. 2025-01
Manhole #359 (Clark Road Just north of Rosarito Drive)
Diameter - 4 ft
Depth - 5 ft
See Detail No. 1 on Sheet No. 3
Manhole #359 (located in foreground) and two unnumbered manholes to be removed View north on the western side of Clark Road.
View within MH #359 to be removed and replaced with a 6' diameter manhole per Detail No. 1 on Sheet No. 3 of the bid set plans.
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MANHOIE AND LIFT STATION REHABILITATION AND NEW MANHOLE INSTATTATION BtD NO. 2025-01
Manhole #1022 (Worthington Blvd. and Nance Rd.)
Diameter - 4 ft
Depth - 13 ft
Force Main drop pipe from lronwood Lift Station & 12" Gravity Sewer Manhole #1022 cover looking north.
View within Manhole #1022lo be rehabilitated.
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Manhole #1024 Worthington/Barioni Blvd.)
Diameter - 4 ft
Depth - 13.5 ft
10" Gravity Sewer & Has Ladder Steps to be removed
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MANHOTE AND tIFT STATION REHABILITATION AND NEW MANHOTE INSTATLATION BID NO. 2025-O1
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View within MH #1024 to be removed/replaced as a new 4' Diameter manhole.
CITY OF IMPERIAT
MANHOTE AND tIFT STATION REHABITITATION AND NEW MANHOLE INSTATTATION BtD NO. 2025-01
Manhole #1 102 (Barioni Blvd. and B St.)
Diameter - 4 ft
Depth - 13 ft
No Force Main
View north within B Street of MH No. 1102
View north within MH No. 1 102 (stairs to be cuVremoved) r
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MANHOLE AND TIFT STATION REHABITITATION AND NEW MANHOTE INSTATTATION BtD NO. 2025-01
Manhole # 1 1 42 (1 sth St and H St)
Diameter - 4 ft
Depth - 10 ft
12" Force Main entering from B Street Lift Station
View north of MH # l 142
View withln MH #1142 to be rehabilitated.
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AGENDA ITEM
Agenda Item No.
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DISCUSSION/ACTION: SURPLUS OF OUT OF SERVICE PARKS AND
RECREATION FLEET VEHICLES
AUTHORIZATION l() stlRPLtlS ol] TWO (2) PARKS AND Rli( RIIATION l:l.FlEI' VEHICT-I]S
I)LPARTMENI INVOT-VI.]I)
UACKGROUNI)/SUMMARY i
Parks and Recreation is seeking City Council's authorization to surplus two (2) out of service vehicles from the departments existing fleet. The vehicles would be a 1997 Ford F250 bucket truck and the second being 1999 U haul box truck (parry- van). Both are currently nonoperational due to mechanical or safety issues and the costs to repair exceed 50% of the current value. The Depanment has since replaced these items *ith safe and efficient equipment.
Please see attached: Equipment photos and brief vehicle summary r,l\.\\( tl
I\III,{I,S
STAFF RECOMMENDATION: It is the department's
recommendation for City Council to authorize lhe surplus of the 2 vehicles identified in the staff report.
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MANAGER'S RIJCoMMF-NI)AI rcN CIIY
MANAGER's
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1997 Ford F250 Bucket Truck
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1999 Ford F250 Uhoul Box Truck
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Vehicle Summary 1997 Ford F250 Buckel TrusL(28 years old) Mileage 108,750 ln 2021 this vehicle was a transfer in from the Public Services Department to the Parks Department. The P.S. department was getting ready to replace this bucket truck with a newer version. Parks Department was asked if we would like to get the last few years of use out the bucket truck rather than surplus it at the time. We agreed and transferred it over. For the first year the bucket truck served it's purpose and had the department had no issues. Then systematically the truck started experiencing issues with the engine following by the aerial component often swinging to fast or slow and remaining stuck in the air at dangerous heights.
The department has taken the vehicle to several local shops to fix the issues at great expense with no success. The recommendations have been to replace the aerial component completely which exceeds the value of the vehicle. lt is for these reasons stated above that we recommend the surplus of the bucket truck.
Vehicle Summarv 1999 Ford F250 U haul Box Truck (26 years old) Mileage 229,224 This Vehicle has been historically used to store items for special events. ln the last 2 years the vehicle has had several mechanical issues and the catalytic converter was stolen. The department has also outgrown the use of the vehicle for the purpose of special event storage.
The costs to replace the catalytic converter and make the engine repairs necessary exceeds 50% of the vehicles value. The Department recommends the surplus of the Box Truck for the above stated reasons.
Agenda Item
No.
(.OI]NCII ACTION
PUBLIC HEARINC
REQUIRED
RESOLU'TION
oRDINANCE IST READINC
ORDINANCE 2\D RIADIN(;
CITY CLERK'S INITIAI-S
c-5
DATE ST IBMI'fI'IJI)
SUBMII']'ED BY
DAI'E AC'I'ION RI:QUIRED
03/12t2025 (x)
COMI\,,IT,INITY ()
DEVl,t-OPMENT
DlRt_c toR
0l/19/20:5
IMPE,RIAL CITY COUNCIL
AGENDA ITEM
SIIBJEC I DISCUSSION/ACTION:
7TH, IOTH & I4TH STREETS REHABILITATION PROJECT
BID NO. 2024-01
AUTHORIZE CHANGE ORDER #2 TO MITIGATE LNFORESEEN SERIOUS CONDITIONS OF VARIOUS CIry'S ESSENTIAL INFRASTRUCTURE COMPONENTS DI:PARTMEN-I INVoIVII): COMMUNITYDEVELOPMENTDEPARTMENT
BACKCROUND/SUMMARY:
Community Development Department was directed by City Council per Agenda Item CC02-07-21 B-2 to seek Bids for the Townsite SIreet lmprovements Project. Thereafter, through a formal competitive Bid process, City Council awarded a contract to Rove Engineering, Inc. to complete the construction ofsaid project per Agenda ltem CCo5-01-24_C-2.
Since then. city staffhave been working closely with Rove Engineering, Inc. to ensure both, the proper execution ofthe items included in the authorized Proposal Bid Sheet, and also find expeditious, efiicient and affordable solutions for the many challenges that have arisen daily due to the advanced age ofthe existing infrastructure and components that are not listed in the City's records.
This Change Order is taking care ofunanticipated removal and replacement ofsanitary sewer and water mains and its residential connections. as well as various adjustments ofthe existing infrastructure.
For details. see attached Change Order #2 and its Exhibits A thru E FISCAT- I\4PA('I
ll $1,270275.18 from:
CIP #850 ("11" Street Sewer Line)
CIP #858 (Old lmperial Wastew{ter Lines)
CIP #859 (Old lmperial Water l.ines)
ADNIIN
SERVICES
SICN INITIALS
Jl"'i
STAFF RECOMMENDATION: Staff recommends City Council
I. AUTHORIZE CHANGE ORDER # 2 TO TAKE CARE OF
UNANTICIPATED TASKS AS OUTLINED ABOVE. Dt)
MA\A(il:R'S Rl,( oMMl:NI)A I ION a44"'V CITY M NACER.S
INITIAI S
MO. O\
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SECONDED
AYES:
NAYES:
ABSI:NT: I{lrlrl:RRl:l) I o
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I)IiPT INITIAI,S
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City of Imperial
Community Development Department
420 South Imperial Avenue
Imperial, CA 92251
Phone: (760) 355-1152
Fax: (760) 355-4718
ut{
Californir
GONSTRUGTION
GHANGE ORDER
Distribution to:
OWNER
ENGINEER
X corurnRcroR
FIELD
OTHER
CHANGE ORDER NO. 2
PROJECT: CTTY OF IMPERIAL
7TH, 1OTH & 14TH STREETS REHABILITATION PRO]ECT
BID NO. 2024-0t
ROVE Engineering, fnc.
Steven Eugenio - President
398 E Aurora Drive
El Centro, CA92243
Phone: +1 (760) 790-7705
Add the following new items:
L Unanticipated removal and replacement of B-in sanitary sewer mains and its residential laterals. i. Original scope of work only included the removal and replacement of sanitary sewer manholes within 7th, 10th & 14th Streets. During the installation of said manholes it was discovered that some of the adjacent sewer mains, installed long time ago using vitrified clay pipes (VCP), were in very poor conditions, some even already presenting cracks and fissures. After further inspections completed by City Staff and contractor, the situation was discussed among Community Development Department, Public Services Department and our contractor during our regular weekly construction progress. Then, it was decided to remove and replace the segment of sanitary sewer mains, as well as its residential laterals directly below the area being improved due to the high risk of this pipeline collapsing in the immediate future due to the programmed asphalt rehabilitation work of this project. See Exhibit "A" which illustrates the area.