HomeMy WebLinkAboutAgenda Report - January 18, 2023 C-08CITY OF
1 14,10
•45Tip
Z
CALIFORNIA
COUNCIL COMMUNICATION
AGENDA ITEM
AGENDA TITLE: Adopt Resolution Authorizing City Manager to Execute Amendment No. 6 to
Professional Services Agreement with Civil Hydro Tech, LLC, of Los Altos, for
Consulting and Project Management Services for Central Plume Area, Monitoring Well
Abandonment, SGMA and City-wide Plume Management ($500,600), and Appropriating
Funds ($500,600)
MEETING DATE: January 18, 2023
PREPARED BY: Public Works Director
RECOMMENDED ACTION: Adopt resolution authorizing City Manager to execute Amendment No. 6
to Professional Services Agreement with Civil Hydro Tech, LLC, of Los
Altos, for consulting and project management services for consulting and
project management services for Central Plume Area, Monitoring Well Abandonment, SGMA and City-wide
Plume Management, in the amount of $500,600, and appropriating funds in the amount of $500,600.
BACKGROUND INFORMATION: Historical practices have resulted in the contamination of groundwater by
tetrachloroethylene (PCE) and trichloroethylene (TCE) producing four
identified groundwater contaminant plumes (Northern, Southern, Central
and Western) within the City of Lodi. Efforts to remove PCE and related contaminants from the Central Plume
Source Area (CPSA), have been ongoing since 2003.
On May 6, 2019, the City executed a Professional Services Agreement with Civil Hydro Tech, LLC (CHT), for
PCE/TCE groundwater program and plume management, in the amount of $141,700. The original scope of work
includes providing sampling, monitoring and reporting specific to achieving regulatory closure of the Soil Vapor
Extraction and Groundwater Extraction (SVE/GWE) system within the Central Plume with the ultimate goal of
system shutdown; and removal; assisting the City with management of the remaining groundwater plumes; and
providing the City with guidance related to the Sustainable Groundwater Management Act (SGMA).
Since the original Professional Services Agreement was approved by Council in 2019, Council has approved
five subsequent amendments that expanded the scope of work to include various regulatory needs, additional
state monitoring, reporting, and preparation of a closure plan for the Central Plume Soil Vapor Extraction
System. The soil vapor extraction system that served the Central Plume is now decommissioned and
removed.
Amendment No. 6, if approved, would provide consulting and project management for ongoing investigation
and remediation in two specific areas impacted by the central plume where the SVE system was unsuccessful
in removing. As part of the approved closure, the City proposed that if indoor air monitoring indicated
increased PCE concentrations due to remaining soil or soil vapor contamination, the City would perform
additional investigative activities using passive soil gas (PSG) samplers and other sampling methods to
pinpoint the area(s) of impacts, and targeted remediation, if necessary, to address the area(s). These activities
are outlined in Attachment 1. The vast majority of this Amendment ($334,100) will consist of well
abandonment activities. CHT will provide all services associated with the well destruction of up to 20 of the
remaining 72 groundwater monitoring wells that are located throughout the various plume areas. Additional
APPROVED: l
Stephen Schwabauer, City Manager
\\PWADCO2\msc$\GROUP\ADMIN\Council\2023\01182023\Civil Hydro\CC_CivilHydro.doc
1/6/2023
Adopt Resolution Authorizing City Manager to Execute Amendment No 6 to Professional Services Agreement with Civil Hydro Tech, LLC, of Sunnyvale, for Consulting and
Project Management Services for Central Plume Area, Monitoring Well Abandonment, SGMA and City-wide Plume Management ($500,600), and Appropriating Funds
($500.600)
January 18, 2023
Page 2
funding will be provided for on-call environmental services for City-wide plume management and on-call SGMA
consulting services.
Staff recommends authorizing City Manager to execute Amendment No. 6 to Professional Services
Agreement with Civil Hydro Tech, LLC, of Los Altos, for consulting and project management services for
Central Plume Area, Monitoring Well Abandonment, SGMA and City-wide Plume Management in the
amount of $500,600, and appropriating funds in the amount of $500,600.
FISCAL IMPACT: The PCE/TCE sampling and remediation activities are a requirement of the
Water Board. Failure to perform could result in violations or fines. This work
does not impact the General Fund.
FUNDING AVAILABLE: Requested Appropriation:
Central Plume Fund (59199000.77020): $ 111,500
PCE/TCE Rates (56599000.77020) $ 369,100
Water Administration (52052001) 20,000
TOTAL: $500,600
0 XV,
Andrew Keys
Deputy City Manager/Internal Services Director
CjLff2__Q__
Charles E. Swimley, Jr.
Public Works Director
Prepared by Andrew Richle, Utilities Superintendent
CES/AR/tw
Attachment
\\PWADCO2\msc$\GROUP\ADMIN\Council\2023\01182023\Civil Hydro\CC_CivilHydro doc 1/6/2023
AMENDMENT NO. 6
CIVIL HYDRO TECH, LLC.
PROFESSIONAL SERVICES AGREEMENT
THIS AMENDMENT, made and entered this day of February, 2023, by and between the
CITY OF LODI, a municipal corporation (hereinafter "CITY"), and CIVIL HYDRO TECH, LLC., a
California limited liability corporation (hereinafter called "CONTRACTOR").
WITNESSETH:
WHEREAS, CONTRACTOR and CITY entered into the Professional Services Agreement on
May 6, 2019, Amendment No. 1 on September 18, 2019, Amendment No. 2 on February 18,
2020, and Amendment No. 3 on August 4, 2020, Amendment No. 4 on March 18, 2021, and
Amendment No. 5 on December 14, 2021 (collectively the "Agreement"), attached hereto as
Exhibits 1, 1 A, 1 B, 1 C, 1 D, and 1 E, respectively, and made a part hereof; and
2. WHEREAS, CITY requested to increase the fees under the Agreement by $500,600, for a
total not to exceed amount of $1,331,333, and amend the existing scope of services to include
consulting and project management services for central plume area, groundwater monitoring
wall abandonment, sustainable groundwater management act, and city-wide plume
management, as set forth in Exhibit 2, attached hereto and made part of; and
3. WHEREAS, CITY requested to extend the term of the Agreement to April 30, 2024; and
4. WHEREAS, CONTRACTOR agrees to said amendments; and
NOW, THEREFORE, the parties agree t
Agreement as set forth above and extend the term
of the Agreement remain unchanged.
i amend the not to exceed amount under the
of the Agreement. All other terms and conditions
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this Amendment No. 6 on
the date and year first above written.
CITY OF LODI, a municipal corporation CIVIL HYDRO TECH, LLC., a California limited
liability company
Herein above called "CITY" Hereinabove called "CONTRACTOR"
0
STEPHEN SCHWABAUER
City Manager
Attest:
OLIVIA NASHED
City Clerk
Approved as to Form:
JANICE D. MAGDICH
City Attorney
VARINDER OBEROI
Principal Hydrologist
Exhibit 1
AGREEMENT FOR PROFESSIONAL SERVICES
ARTICLE 1
PARTIES AND PURPOSE
Section 1.1 Parties
THIS AGREEMENT is entered into on14 , 2019, by and between the CITY 61�
OF LODI, a municipal corporation (hereinafter "CITY"), and CIVIL HYDRO TECH, LLC.,
a California limited liability company (hereinafter "CONTRACTOR").
Section 1.2 Purpose
CITY selected the CONTRACTOR to provide the services required in
accordance with attached Scope of Services, Exhibit A, attached and incorporated by
this reference.
CITY wishes to enter into an agreement with CONTRACTOR for PCE/TCE
groundwater program and plume management (hereinafter "Project") as set forth in the
Scope of Services attached here as Exhibit A. CONTRACTOR acknowledges that it is
qualified to provide such services to CITY.
ARTICLE 2
SCOPE OF SERVICES
Section 2.1 Scope of Services
CONTRACTOR, for the benefit and at the direction of CITY, shall perform the
Scope of Services as set forth in Exhibit A.
Section 2.2 Time For Commencement and Completion of Work
CONTRACTOR shall commence work pursuant to this Agreement, upon receipt
of a written notice to proceed from CITY or on the date set forth in Section 2.6,
whichever occurs first, and shall perform all services diligently and complete work under
this Agreement based on a mutually agreed upon timeline or as otherwise designated in
the Scope of Services.
CONTRACTOR shall submit to CITY such reports, diagrams, drawings and other
work products as may be designated in the Scope of Services.
CONTRACTOR shall not be responsible for delays caused by the failure of CITY
staff to provide required data or review documents within the appropriate time frames.
The review time by CITY and any other agencies involved in the project shall not be
counted against CONTRACTOR's contract performance period. Also, any delays due to
weather, vandalism, acts of God, etc., shall not be counted. CONTRACTOR shall
1
remain in contact with reviewing agencies and make all efforts to review and return all
comments.
Section 2.3 Meetings
CONTRACTOR shall attend meetings as may be set forth in the Scope of
Services.
Section 2.4 Staffing
CONTRACTOR acknowledges that CITY has relied on CONTRACTOR's
capabilities and on the qualifications of CONTRACTOR's principals and staff as
identified in its proposal to CITY. The Scope of Services shall be performed by
CONTRACTOR, unless agreed to otherwise by CITY in writing. CITY shall be notified
by CONTRACTOR of any change of Project Manager and CITY is granted the right of
approval of all original, additional and replacement personnel at CITY's sole discretion
and shall be notified by CONTRACTOR of any changes of CONTRACTOR's project staff
prior to any change.
CONTRACTOR represents it is prepared to and can perform all services within
the Scope of Services (Exhibit A) and is prepared to and can perform all services
specified therein. CONTRACTOR represents that it has, or will have at the time this
Agreement is executed, all licenses, permits, qualifications, insurance and approvals of
whatsoever nature are legally required for CONTRACTOR to practice its profession, and
that CONTRACTOR shall, at its own cost and expense, keep in effect during the life of
this Agreement all such licenses, permits, qualifications, insurance and approvals, and
shall indemnify, defend and hold harmless CITY against any costs associated with such
licenses, permits, qualifications, insurance and approvals which may be imposed against
CITY under this Agreement.
Section 2.5 Subcontracts
Unless prior written approval of CITY is obtained, CONTRACTOR shall not enter
into any subcontract with any other party for purposes of providing any work or services
covered by this Agreement.
Section 2.6 Term
The term of this Agreement commences on May 1, 2019 and terminates upon
the completion of the Scope of Services or on April 31, 2022, whichever occurs first.
Section 2.7 ❑ tion to Extend Term of Agreement
At its option, City may extend the terms of this Agreement for an additional two
(2) one (1) -year extensions; provided, City gives Contractor no less than thirty (30) days
written notice of its intent prior to expiration of the existing term. In the event City
exercises any option under this paragraph, all other terms and conditions of this
2
Agreement continue and remain in full force and effect.
The total duration of this Agreement, including the exercise of any option under
this paragraph, shall not exceed five (5) years.
ARTICLE 3
COMPENSATION
Section 3.1 Compensation
CONTRACTOR's compensation for all work under this Agreement shall conform
to the provisions of the Fee Proposal, attached hereto as Exhibit B and incorporated by
this reference.
CONTRACTOR shall not undertake any work beyond the scope of this
Agreement unless such additional work is approved in advance and in writing by CITY.
Section 3.2 Prevailing Wage
The Contractor agrees to conform to the provisions of Chapter 1, Part 7, Division
2 of the Labor Code. The Contractor and any Subcontractor will pay the general
prevailing wage rate and other employer payments for health and welfare, pension,
vacation, travel time, and subsistence pay, apprenticeship or other training programs.
The responsibility for compliance with these Labor Code requirements is on the prime
contractor.
Section 3.3 Contractor Registration - Labor Code §1725.5
No contractor or subcontractor may be awarded a contract for public work on a
public works project (awarded on or after April 1, 2015) unless registered with the
Department of Industrial Relations pursuant to Labor Code section 1725.5.
This project is subject to compliance monitoring and enforcement by the
Department of Industrial Relations.
Section 3.4 Method of Pa ment
CONTRACTOR shall submit invoices for completed work on a monthly basis, or
as otherwise agreed, providing, without limitation, details as to amount of hours,
individual performing said work, hourly rate, and indicating to what aspect of the Scope
of Services said work is attributable. CONTRACTOR's compensation for all work under
this Agreement shall not exceed the amount of the Fee Proposal.
Section 3.5 Costs
The Fee Proposal shall include all reimbursable costs required for the
performance of the Scope of Services. Payment of additional reimbursable costs
considered to be over and above those inherent in the original Scope of Services shall
be approved in advanced and in writing, by CITY.
3
Section 3.6 AB 626Public Contract Code Section 9204 — Public Works Pra"ect
Contract Dispute Resolution Procedure
Section 9204 of the California Public Contract Code (the "Code") provides a
claim resolution process for "Public Works Project" contracts, as defined, which is
hereby incorporated by this reference, and summarized in the following:
Definitions:
"Claim" means a separate demand by a contractor sent by registered mail or certified
mail with return receipt requested, for one or more of the following:
(A) A time extension, including, without limitation, for relief from damages or
penalties for delay assessed by the City under a contract for a Public Works Project.
(B) Payment of money or damages arising from work done by, or on behalf
of, a contractor pursuant to a contract for a Public Works Project and payment for which
is not otherwise expressly provided or to which a claimant is not otherwise entitled.
(C) Payment of an amount that is disputed by the City.
"Public Works Project" means the erection, construction, alteration, repair, or
improvement of any public structure, building, road, or other public improvement of any
kind.
Claim Resolution Process:
(1) All Claims must be properly submitted pursuant to the Code and include
reasonable documentation supporting the Claim. Upon receipt of a Claim, the City will
conduct a reasonable review, and within a period not to exceed 45 days, will provide the
claimant a written statement identifying the disputed and undisputed portions of the
Claim. The City and contractor may, by mutual agreement, extend the time periods in
which to review and respond to a Claim. If the City fails to issue a written statement,
paragraph (3) applies.
Any payment due on a portion of the Claim deemed not in dispute by the City will
be processed and made within 60 days after the City issues its written statement.
(2) If the claimant disputes the City's response, or if the City fails to respond
to a Claim within the time prescribed in the Code, the claimant may demand in writing,
by registered mail or certified mail, return receipt requested, an informal conference to
meet and confer for settlement of the issues in dispute, which will be conducted within
30 days of receipt.
If the Claim or any portion thereof remains in dispute after the meet and confer
conference, the City will provide the claimant a written statement, within 10 business
days, identifying the remaining disputed and undisputed portions of the Claim. Any
payment due on an undisputed portion of the Claim will be processed and made within
4
60 days after the City issues its written statement. Any disputed portion of the Claim, as
identified by the contractor in writing, shall be submitted to nonbinding mediation, as set
forth in the Code, unless mutually waived and agreed, in writing, to proceed directly to a
civil action or binding arbitration, as applicable.
(3) A Claim that is not responded to within the time requirements set forth in
the Code is deemed rejected in its entirety. A Claim that is denied by reason of such
failure does not constitute an adverse finding with regard to the merits of the Claim or
the responsibility or qualifications of the claimant.
(4) Amounts not paid in a timely manner as required by the Code will bear
interest at 7 percent per annum.
(5) Subcontractors or lower tier subcontractors that lack legal standing or
privity of contract to assert a Claim directly against the City, may request in writing, on
their behalf or the behalf of a lower tier subcontractor, that the contractor present a
Claim to the City for work performed by the subcontractor or lower tier subcontractor.
The request shall be accompanied by reasonable documentation to support the Claim.
Within 45 days of receipt of such written request, the contractor shall notify the
subcontractor in writing as to whether the contractor presented the Claim to the City and,
if the original contractor did not present the Claim, provide the subcontractor with a
statement of the reasons for not having done so.
The Claim resolution procedures and timelines set forth in the Code are in
addition to any other change order, claim, and dispute resolution procedures and
requirements set forth in the City contract documents, to the extent that they are not in
conflict with the timeframes and procedures the Code.
Section 3.7 Auditing
CITY reserves the right to periodically audit all charges made by CONTRACTOR
to CITY for services under this Agreement. Upon request, CONTRACTOR agrees to
furnish CITY, or a designated representative, with necessary information and assistance
needed to conduct such an audit.
CONTRACTOR agrees that CITY or its delegate will have the right to review,
obtain and copy all records pertaining to performance of this Agreement.
CONTRACTOR agrees to provide CITY or its delegate with any relevant information
requested and shall permit CITY or its delegate access to its premises, upon reasonable
notice, during normal business hours for the purpose of interviewing employees and
inspecting and copying such books, records, accounts, and other material that may be
relevant to a matter under investigation for the purpose of determining compliance with
5
this requirement. CONTRACTOR further agrees to maintain such records for a period of
three (3) years after final payment under this Agreement.
ARTICLE 4
MISCELLANEOUS PROVISIONS
Section 4.1 Nondiscrimination
In performing services under this Agreement, CONTRACTOR shall not
discriminate in the employment of its employees or in the engagement of any sub
CONTRACTOR on the basis of race, color, religion, sex, sexual orientation, marital
status, national origin, ancestry, age, or any other criteria prohibited by law.
Section 4.2 ADA Cornoliance
In performing services under this Agreement, CONTRACTOR shall comply with
the Americans with Disabilities Act (ADA) of 1990, and all amendments thereto, as well
as all applicable regulations and guidelines issued pursuant to the ADA.
Section 4.3 Indemnification and Responsibility for Damage
CONTRACTOR to the fullest extent permitted by law, shall indemnify and hold
harmless CITY, its elected and appointed officials, directors, officers, employees and
volunteers from and against any claims, damages, losses, and expenses (including
reasonable attorney's fees and costs), arising out of performance of the services to be
performed under this Agreement, provided that any such claim, damage, loss, or
expense is caused by the negligent acts, errors or omissions of CONTRACTOR, any
subcontractor employed directly by CONTRACTOR, anyone directly or indirectly
employed by any of them, or anyone for whose acts they may be liable, except those
injuries or damages arising out of the active negligence, sole negligence, or sole willful
misconduct of the City of Lodi, its elected and appointed officials, directors, officers,
employees and volunteers. CITY may, at its election, conduct the defense or participate
in the defense of any claim related in any way to this indemnification. If CITY chooses at
its own election to conduct its own defense, participate in its own defense, or obtain
independent legal counsel in defense of any claim related to this indemnification,
CONTRACTOR shall pay all of the costs related thereto, including without limitation
reasonable attorney fees and costs. The defense and indemnification obligations
required by this Agreement are undertaken in addition to, and shall not in any way be
limited by the insurance obligations set forth herein.
Section 4.4 No Personal Liabilit
6
Neither the City Council, nor any other officer or authorized assistant or agent or
City employee shall be personally responsible for any liability arising under this
Agreement.
Section 4.5 Responsibility of CITY
CITY shall not be held responsible for the care or protection of any material or
parts of the work described in the Scope of Services prior to final acceptance by CITY,
except as expressly provided herein.
Section 4.6 Insurance Requirements for CONTRACTOR
CONTRACTOR shall take out and maintain during the life of this Agreement,
insurance coverage as set forth in Exhibit C attached hereto and incorporated by this
reference.
Section 4.7 Successors and Assigns
CITY and CONTRACTOR each bind themselves, their partners, successors,
assigns, and legal representatives to this Agreement without the written consent of the
others. CONTRACTOR shall not assign or transfer any interest in this Agreement
without the prior written consent of CITY. Consent to any such transfer shall be at the
sole discretion of CITY.
Section 4.8 Notices
Any notice required to be given by the terms of this Agreement shall be in writing
signed by an authorized representative of the sender and shall be deemed to have been
given when the same is personally served or upon receipt by express or overnight
delivery, postage prepaid, or three (3) days from the time of mailing if sent by first class
or certified mail, postage prepaid, addressed to the respective parties as follows:
To CITY: City of Lodi
221 West Pine Street
P.O. Box 3006
Lodi, CA 95241-1910
Attn: Andrew Richle
To CONTRACTOR: Civil Hydro Tech, LLC.
581 Montego Terrace
Sunnyvale, CA 94089
Attn: Varinder Oberoi
Section 4.9 Cooperation of CITY
CITY shall cooperate fully and in a timely manner in providing relevant
information it has at its disposal relevant to the Scope of Services.
Section 4.10 CONTRACTOR is Not an Em Io ee of CITY
iA
CONTRACTOR agrees that in undertaking the duties to be performed under this
Agreement, it shall act as an independent contractor for and on behalf of CITY and not
an employee of CITY. CITY shall not direct the work and means for accomplishment of
the services and work to be performed hereunder. CITY, however, retains the right to
require that work performed by CONTRACTOR meet specific standards without regard
to the manner and means of accomplishment thereof.
Section 4.11 Termination
CITY may terminate this Agreement, with or without cause, by giving
CONTRACTOR at least ten (10) days written notice. Where phases are anticipated
within the Scope of Services, at which an intermediate decision is required concerning
whether to proceed further, CITY may terminate at the conclusion of any such phase.
Upon termination, CONTRACTOR shall be entitled to payment as set forth in the
attached Exhibit B to the extent that the work has been performed. Upon termination,
CONTRACTOR shall immediately suspend all work on the Project and deliver any
documents or work in progress to CITY. However, CITY shall assume no liability for
costs, expenses or lost profits resulting from services not completed or for contracts
entered into by CONTRACTOR with third parties in reliance upon this Agreement.
Section 4.12 Confidentiality
CONTRACTOR agrees to maintain confidentiality of all work and work products
produced under this Agreement, except to the extent otherwise required by law or
permitted in writing by CITY. CITY agrees to maintain confidentiality of any documents
owned by CONTRACTOR and clearly marked by CONTRACTOR as "Confidential" or
"Proprietary", except to the extent otherwise required by law or permitted in writing by
CONTRACTOR. CONTRACTOR acknowledges that CITY is subject to the California
Public Records Act.
Section 4.13 Applicable Law Jurisdiction Severability, and Attorne 's Fees
This Agreement shall be governed by the laws of the State of California.
Jurisdiction of litigation arising from this Agreement shall be venued with the San
Joaquin County Superior Court. If any part of this Agreement is found to conflict with
applicable laws, such part shall be inoperative, null, and void insofar as it is in conflict
with said laws, but the remainder of this Agreement shall be in force and effect. In the
event any dispute between the parties arises under or regarding this Agreement, the
prevailing party in any litigation of the dispute shall be entitled to reasonable attorney's
fees from the party who does not prevail as determined by the San Joaquin County
Superior Court.
Section 4.14 City Business License Requirement
8
CONTRACTOR acknowledges that Lodi Municipal Code Section 3.01.020
requires CONTRACTOR to have a city business license and CONTRACTOR agrees to
secure such license and pay the appropriate fees prior to performing any work
hereunder.
Section 4.15 Captions
The captions of the sections and subsections of this Agreement are for
convenience only and shall not be deemed to be relevant in resolving any question or
interpretation or intent hereunder.
Section 4.16 Inte ratiion and Modification
This Agreement represents the entire understanding of CITY and
CONTRACTOR as to those matters contained herein. No prior oral or written
understanding shall be of any force or effect with respect to those matters covered
hereunder. This Agreement may not be modified or altered except in writing, signed by
both parties.
Section 4.17 Contract Terms Prevail
All exhibits and this Agreement are intended to be construed as a single
document. Should any inconsistency occur between the specific terms of this
Agreement and the attached exhibits, the terms of this Agreement shall prevail_
Section 4.18 Severabilily
The invalidity in whole or in part of any provision of this Agreement shall not void
or affect the validity of any other provision of this Agreement.
Section 4.19 Ownership of Documents
All documents, photographs, reports, analyses, audits, computer media, or other
material documents or data, and working papers, whether or not in final form, which
have been obtained or prepared under this Agreement, shall be deemed the property of
CITY. Upon CITY's request, CONTRACTOR shall allow CITY to inspect all such
documents during CONTRACTOR's regular business hours. Upon termination or
completion of services under this Agreement, all information collected, work product and
documents shall be delivered by CONTRACTOR to CITY within ten (10) calendar days.
CITY agrees to indemnify, defend and hold CONTRACTOR harmless from any
liability resulting from CITY's use of such documents for any purpose other than the
purpose for which they were intended.
Section 4.20 Authority
The undersigned hereby represent and warrant that they are authorized by the
parties to execute this Agreement.
Section 4.21 Federal Transit Funding Conditions
9
❑ If the box at left is checked, the Federal Transit Funding conditions attached as
Exhibit D apply to this Agreement. In the event of a conflict between the terms of this
Agreement or any of its other exhibits, and the Federal Transit Funding Conditions, the
Federal Transit Funding Conditions will control.
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this
Agreement as of the date first above written.
ATTEST:
r
NIFER ERRAIOLO
y Clerk
APPROVED AS TO FORM:
JANICE D. MAGDICH, City Attorney
CITY OF LODI, a municipal corporation
STEPHE CHWA9A
City Manager
CIVIL HYDRO TECH, LLC., a California limited
liability company
By: ,
Name: VARK DER OBEROI
Title: Principal Hydrologist
Attachments:
Exhibit A — Scope of Services
Exhibit B — Fee Proposal
Exhibit C — Insurance Requirements
Exhibit D — Federal Transit Funding Conditions (If applicable)
Funding Source: CP (59099000.77020); WP (59499000.77020); SP (59199000.77024); NP
(59399000.77020)
(Business Unit & Account No.)
Doc ID:R;IGROUPIADMIN\Council\2019\041720191CIvilHydro\PSA.doc
CA:Rev.02.2017
10
CIVIL F-tYUF,)C TECH
G;vtiG/E rr�uKu+�uG/water Rtjoura&
March 17, 2019
Mr. Charlie Swimley
Public Works Director
City of Lodi
221 West Pine Street
Lodi CA 95240
Exhibit A/B
SENT VIA: EMAIL
SUBJECT: Proposal for Groundwater Program and Plume Management
City of Lodi, California
Dear Mr. Swimley:
Per your request, Civil Hydro Tech (CHT) has prepared the following proposed scope of work
and estimated costs for the City of Lodi's (City) groundwater program and plume management
activities. The proposed scope of work is based on suggestions provided by the Regional Water
Quality Control Board, Central Valley Region (Water Board) during our meeting on
January 15, 2019, and consists of tasks related to the on-going efforts to obtain closure of the
Central Plume Source Area (CPSA) soil vapor extraction (SVE) system, management of the City
groundwater plumes, and the implementation of the Sustainable Groundwater Management Act
(SGMA) activities associated with the City groundwater sustainability agency (GSA). The
proposed scope of work will include performing and managing the following tasks —
1. Providing consulting services for on-going efforts to move the CPSA SVE system to
closure, including feasibility evaluation of different alternatives other than those being
currently applied;
2. Evaluation of the indoor air quality at businesses and residences within the LCP area;
3. Evaluation of a potential source for the Lodi Southern Plume (LSP);
4. Providing on-going and future consulting services to the City GSA related to the
implementation of the SGMA activities; and,
Providing environmental consulting services to the City on the several groundwater
contamination plumes that are currently in monitoring and cleanup phases, including
meetings with the Water Board and the City.
A detailed description of each of the proposed scope of work is provided below.
Task 5a — Installation of Passive Soil Gas (PSG) Samplers in the CPSA
As part of the City's on-going efforts to obtain closure of the CPSA SVE system, CHT recently
completed rebound sampling of all SVE wells in accordance with the proposed recommendations
from the January 20, 2019 Results of Revised Soil Vapor Extraction System Sampling Protocol
letter to the Water Board. The rebound sampling protocol was approved by the Water Board in a
letter to Andrew Richle with the City, dated February 12, 2019. Results of the rebound sampling
event will be used by CHT to perform the following activities:
581 MONTEGO TERRACE, SUNNYVALE, CA 94089 TEL: 415-424-3009
Proposal for Groundwater Program and Plume Management
March 17, 2019
• Identify the locations for installing passive soil gas (PSG) samplers
Page 2
■ Install a total of 12 PSG samplers, like Waterloo Membrane SamplerTM (WMSTM) or
Beacon BeSure Sample Collection KitsTM, in those locations to collect passive soil gas
samples and analyze these samples to delineate the surficial extent of the remnant
tetrachloroethene (PCE) concentrations in soil; and,
• Prepare a letter report summarizing the results of the soil gas data and submit it to the
City for review and comments. CHT will then incorporate the comments of the City and
submit the finalized letter report to the Water Board.
Task 5a Deliverables: Meeting with the City and letter report to the Water Board documenting.
the results
Task 5b — Indoor Air Sampling
The Water Board, in its January 15, 2019 meeting with the City, recommended that the City
should perform indoor and ambient air sampling as part of requirements for obtaining closure for
the CPSA SVE system. The Water Board also recommended that the indoor air samples should
be collected at adjacent business and residential locations that were previously sampled in the
2004 indoor air sampling event performed by Treadwell & Rollo. CHT proposes to perform the
following activities under Task 5c —
Prepare a work plan for sampling and analysis of indoor and ambient air in adjacent
businesses and residences, and submit it to the Water Board for approval;
• Collect up to 30 samples of indoor and ambient air (either 8 -hour or 24-hour time -
integrated samples) at the proposed locations, and submit them for laboratory analyses;
and,
■ Prepare a letter report summarizing the results of the indoor air sampling event and
submit it to the City for review and comments. CHT will then incorporate the comments
of the City and submit the finalized report to the Water Board.
Task 5b Deliverables: One round of sampling, meeting with the City, letter report to the Water
Board documenting the results
Task 5c — Evaluation of Alternatives for CPSA SVE System Closure
Following completion of Tasks 5a and 5b, CHT proposes to evaluate alternatives such as
installation of a passive soil vapor extraction system, installing additional shallow SVE wells,
and targeted soil excavation in the areas that exhibit remnants of PCE in soil. As part of this
Task, CHT will perform the following activities:
• A feasibility -level cost evaluation of alternatives for soil remediation in the CPSA;
• Prepare a Technical Memorandum summarizing our evaluation and recommendations
for the selected alternative;
• Meet with the City to discuss our recommendation for the selected alternative; and,
■ Prepare a letter report to the Water Board to recommend our selected alternative to
obtain closure of the LCP SVE system.
581 MONTEGO TERRACE, SUNNYVALE, CA 94089 TEL: 415-424-3009
Proposal for Groundwater Program and Plume Management Page 3
March 17, 2019
We have assumed that the City would provide one round of comments on the draft report and
that the final letter report will be submitted to the Water Board on the City's behalf.
Task Sc Deliverables: Meeting with the City to discuss the recommended alternative ,and tetter
report to the Water Board -
Task 5d — Evaluate Potential Source in the Lodi Southern Plume using PSG Samplers
Groundwater monitoring data collected from the Lodi Southern Plume (LSP) monitoring wells
indicates an increasing trend in PCE concentrations in shallow wells OS -2U, SA -6, and SA -10.
The Water Board suggested at the January 15, 2019 meeting that the City should evaluate the
presence of a potential source in the LSP that has resulted in an increase in the PCE
concentrations in some of the shallow wells. As part of this Task, CHT will perform the
following activities:
■ Review data from previous investigations to identify potential source areas;
• Install a total of 12 PSG samplers, in soil like Waterloo Membrane SamplerTM (WMSTM)
or Beacon BeSure Sample Collection KitsTM, to collect passive soil gas samples that will
identify the surficial extent of the PCE concentrations in soil, and analyze these samples;
and,
+ Prepare a letter report summarizing the results of the soil gas data and submit it to the
City for review and comments. CHT will then incorporate the comments of the City and
submit the finalized report to the Water Board.
Task 5d Deliverables: One round of sampling, meeting with the City, letter report to the Water
Board documenting the results
Task 5e — Provide On-call SGMA Consulting Services
The City has formed a groundwater sustainability agency (GSA) that would allow it to develop
strategies to manage their own groundwater, including gathering groundwater data, monitoring
water usage, regulating wells, and imposing water usage fines, among other duties related to the
implementation of the Sustainable Groundwater Management Act (SGMA). The City GSA is
part of the public entity known as Eastern San Joaquin Groundwater Authority (Authority) that
will coordinate the various GSAs' management of the San Joaquin Valley Groundwater Basin,
Eastern San Joaquin Sub -basin, California Department of Water Resources Basin No. 5-22.01, as
part of SGMA.
As part of this Task, CHT will continue to provide consulting services to the City to address
issues pertaining to the implementation of SGMA, including providing input to the City
regarding review of SGMA related requests from the Authority, review and comment on SGMA
documents including the basin -wide groundwater model and the proposed Groundwater
Sustainability Plan (GSP), and attendance at the meetings as the City's representative. This Task
will provide a mechanism for CHT to continue on-going and future support to the City for
SGMA related activities.
581 MONTEGO TERRACE, SUNNYVALE, CA 94089 TEL: 415-424-3009
Proposal for Groundwater Program and Plume Management Page 4
March 17, 2019
Task 5f — Provide On-call Environmental Consulting Services for City -Wide Plume
Management
As part of this Task, CHT will continue to provide environmental consulting services to the City
for the several groundwater contamination plumes that are currently in monitoring and cleanup
phases, and to address issues that continue to arise and are not currently covered by active Task
Orders. We are being asked by the City staff to provide input to the City and to the various
environmental contractors on their work, and this Task will provide a mechanism for us to
continue this support.
ESTIMATED FEE
CHT proposes to perform the work on a time -and -expense basis in accordance with the terms of
our City of Lodi Professional Services Agreement. We will not exceed our estimated fee of
$141,700 without your prior written authorization. A summary of estimated cost by Tasks is
provided in Table 1 below.
Sc..--
Work will commence immediately upon receipt of Notice to Proceed. We anticipate completing
the proposed scope of work within approximately six months. Please do not hesitate to contact
Varinder Oberoi at (415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
581 MONTEGO TERRACE, SUNNYVALE, CA 94089 TEL: 415-424-3009
TABLE 1. ESTIMATED FEE
DESCRIPTION
5a
Installation of Passive Soil Gas (PSG) Samplers in
$ 19,500 i
the CPSA
5b
Indoor Air Sampling
$ 23,900
5c
Evaluation of Alternatives for CPSA SVE System
$ 25,000
Closure
Sd
Evaluate Potential Source in the Lodi Southern
$ 23,300
Plume using PSG Samplers
5e
Provide On-call SGMA Consulting Services
$ 25,000
Sf
Provide On-call Environmental Consulting
$ 25,000
Services for City -Wide Plume Management
TOTAL
$ 141,700
Sc..--
Work will commence immediately upon receipt of Notice to Proceed. We anticipate completing
the proposed scope of work within approximately six months. Please do not hesitate to contact
Varinder Oberoi at (415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
581 MONTEGO TERRACE, SUNNYVALE, CA 94089 TEL: 415-424-3009
Exhibit C
NOTE. The City of Lodi is now using the online insurance program PINS Advantage. Once you have been awarded a
contract you will receive an email from the City's online insurance program requesting you to forward the email to your
insurance provider(s) to submit the required insurance documentation electronically
Insurance Reauirements for Most Contracts
INot construction or reauirinp professional I!ahiIity)
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 and the results of that work by the
Contractor, his agents, representatives, employees or subcontractors.
MINIMUM SCOPE AND LIMIT OF INSURANCE
Coverage shall be at least as broad as:
1. Commercial General Liability (CGL): Insurance Services Office Form CG 00 01 covering CGL on an "occurrence" basis, including
products and completed operations, property damage, bodily injury and personal & advertising injury with limits no less than
$2,000,000 per occurrence. If a general aggregate limit applies, either the general aggregate limit shall apply separately to this
project/location (ISO CG 25 03 or 25 04) or the general aggregate limit shall be twice the required occurrence limit.
2. Automobile Liability: ISO Form Number CA 00 01 covering any auto or if Contractor has no owned autos, then hired, and non -
owned autos with limit no less than $1,000,000 per accident for bodily injury and property damage.
3. Workers' Compensation: as required by the State of California, with Statutory Limits, and Employer's Liability Insurance with limit
of no less than $1,000,000 per accident for bodily injury or disease.
Other Insurance Provisions:
(a) Additional Named insured Status
The City of Lodi, its elected and appointed boards, commissions, officers, agents, employees, and volunteers are to be covered
as additional insureds on the CGL and auto policy with respect to liability arising out of work or operations performed by or on
behalf of the Contractor including materials, parts, or equipment furnished in connection with such work or operations. General
liability coverage can be provided in the form of an endorsement to the Contractor's insurance (at least as broad as ISO Form
CG 20 10 11 85 or if not available, through the addition of both CG 20 10, CG 20 26, CG 20 33, or CG 20 38; and CG 20 37 if a
later edition is used
(b) Primary, and Non-ContHbutary Insurance Endorsement
The limits of insurance coverage required may be satisfied by a combination of primary and umbrella or excess insurance. For
any claims related to this contract, the Contractor's insurance coverage shall be primary coverage at least as broad as ISO CG
20 01 04 13 as respects the Entity, its officers, officials, employees, and volunteers. Any insurance or self-insurance maintained
by the Entity, its officers, officials, employees, or volunteers shall be excess of the Contractor's insurance and shall not contribute
with it.
(c) Waiver of Subrogation Contractor hereby grants to City of Lodi a waiver of any right to subrogation which any insurer of said
Contractor may acquire against the City of Lodi by virtue of the payment of any loss under such insurance. Contractor agrees to
obtain any endorsement that may be necessary to affect this waiver of subrogation, but this provision applies regardless of whether
or not the City of Lodi has received a waiver of subrogation endorsement from the insurer
NOTE: (1) The street address of the CITY OF LODI must be shown along with (a) and (b) and (c) above: 221 West Pine Street,
Lodi, California, 95240; (2) The insurance certificate must state, on its face or as an endorsement, a description of thero oiect
that it is insuring.
(d) Severability of Interest Clause
The term "insured" is used severally and not collectively, but the inclusion herein of more than one insured shall not operate to
increase the limit of the company's liability under the Contractors commercial general liability and automobile liability policies.
(e) Notice of Cancellation Gr Change in Coverage Endorsement
This policy may not be canceled nor the coverage reduced by the company without 30 days' prior written notice of such
cancellation or reduction in coverage to the Risk Manager, City of Lodi, 221 West Pine St., Lodi, CA 95240.
Page 1 I of 2 pages ! T Risk: rev. 3/1/2018
(f) Continuity of Coverage
All policies shall be in effect on or before the first day of the Tenn of this Agreement. At least thirty (30) days prior to the expiration
of each insurance policy, Contractor shall furnish a certificate(s) showing that a new or extended policy has been obtained which
meets the minimum requirements of this Agreement. Contractor shall provide proof of continuing insurance on at least an annual
basis during the Term. If Contractor's insurance lapses or is discontinued for any reason, Contractor shall immediately notify the
City and immediately obtain replacement insurance. Contractor agrees and stipulates that any insurance coverage provided to the
City of Lodi shall provide for a claims period following termination of coverage which is at least consistent with the claims period or
statutes of limitations found in the California Tort Claims Act (California Government Code Section 810 et seq.).
(g) Failure to Comply
If Contractor fails or refuses to obtain and maintain the required insurance, or fails to provide proof of coverage, the City may obtain
the insurance. Contractor shall reimburse the City for premiums paid, with interest on the premium paid by the City at the maximum
allowable legal rate then in effect in California. The City shall notify Contractor of such payment of premiums within thirty (30) days
of payment stating the amount paid, the name(s) of the insurer(s), and rate of interest. Contractor shall pay such reimbursement
and interest on the first (1st) day of the month following the City's notice. Notwithstanding any other provision of this Agreement,
if Contractor fails or refuses to obtain or maintain insurance as required by this agreement, or fails to provide proof of insurance,
the City may terminate this Agreement upon such breach. Upon such termination, Contractor shall immediately cease use of the
Site or facilities and commence and diligently pursue the removal of any and all of its personal property from the site or facilities.
(h) Verificatian of Coverage
Consultant shall furnish the City with a copy of the policy declaration and endorsement page(s), original certificates and
amendatory endorsements or copies of the applicable policy language effecting coverage required by this clause. All certificates
and endorsements are to be received and approved by the City before work commences. However, failure to obtain the required
documents priorto the work beginning shall not waive the Consultant's obligation to provide them. The City reserves the right to
require complete, certified copies of all required insurance policies, including endorsements required by these specifications, at
any time. Failure to exercise this right shall not constitute a waiver of the City's right to exercise after the effective
date.
(i) Self -Insured Retentions
Self-insured retentions must be declared to and approved by the City. The City may require the Consultant to provide proof of ability
to pay losses and related investigations, claim administration, and defense expenses within the retention. The policy language shall
provide, or be endorsed to provide, that the self-insured retention may be satisfied by either the named insured or City.
Q) Insurance Limits
The limits of insurance described herein shall not limit the liability of the Contractor and Contractor's officers, employees, agents,
representatives or subcontractors. Contractor's obligation to defend, indemnify and hold the City and its officers, officials,
employees, agents and volunteers harmless under the provisions of this paragraph is not limited to or restricted by any requirement
in the Agreement for Contractor to procure and maintain a policy of insurance.
(k) Subcontractors
Consultant shall require and verify that all subcontractors maintain insurance meeting all the requirements stated herein, and
Consultant shall ensure that City is an additional insured on insurance required from subcontractors
(I) Quaidied Insurer{s]
All insurance required by the terms of this Agreement must be provided by insurers licensed to do business in the State of
California which are rated at least "A-, VI" by the AM Best Ratings Guide, and which are acceptable to the City. Non -admitted
surplus lines carriers may be accepted provided they are included on the most recent list of California eligible surplus lines
insurers (LESLI list) and otherwise meet City requirements.
Page 2 1 of 2 pages Risk: rev 3/1/2018
Exhibit 1A
AMENDMENT NO. 1
CIVIL HYDRO TECH, LLC.
PROFESSIONAL SERVICES AGREEMENT
THIS AMENDMENT, made and entered this 'day of September, 2019, by and between
the CITY OF LODI, a municipal corporation (hereinafter 'CITY), and CIVIL HYDRO TECH, LLC., a
California limited liability corporation (hereinafter called'CONTRACTOW).
WITNESSETH:
1. WHEREAS, CONTRACTOR and CITY entered into the Professional Services Agreement on
May 6, 2019, attached hereto as Exhibit 1, and made a part hereof; and
2. WHEREAS, CITY requested to increase the fees by $116,209, for a total not to exceed
amount of $257,909, and amend the existing scope of services to include Central, Western,
Southern, and Northern Plumes Groundwater Monitoring, Sampling, and Reporting Services,
as set forth in Exhibit 2, attached hereto and made part of; and
3. WHEREAS, CONTRACTOR agrees to said amendment; and
NOW, THEREFORE, the parties agree to amend the not to exceed amount under the
Agreement and expand the scope of services set forth above. All other terms and conditions of the
Agreement remain unchanged.
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this Amendment No. 1 on
the date and year first above written.
CITY OF LODI, a municipal corporation
Herein above called "CITY"
-
STE HEN ICAWABALJER
City Manager
Attest:
�U.._ :��
MIWA.
:�; IQ • +w
y Clerk
Approved as to Form:
r]JA�:NIC� MAGDICH
city A6mey ,'
CIVIL HYDRO TECH, LLC., a California limited
liability company
Hereinabove called'CONTRACTOW
By:
VARINDERAMER01
Principal Hydrologist
Exhibit 2 to Amendment 1
CIVIL HYUVC TECH
c4a/ E^414p u nrlwG/ Walter Rcfor O&I Dcwv4f vi.y
July 22, 2019 SENT VIA: EMAIL
Mr. Charlie Swimley
Public Works Director — City of Lodi
221 West Pine Street
Lodi CA 95240
SUBJECT: Proposal for Central, Western, Southern, and Northern Plumes
Groundwater Monitoring, Sampling, and Reporting Services
Lodi, California.
Dear Mr. Swimley:
Per the request of the City of Lodi (City), Civil Hydro Tech, LLC (CHT) has prepared the
following proposed scope of services and estimated costs for performing Groundwater
Monitoring, Sampling, and Reporting Services for the City of Lodi (Lodi) Central, Western,
Southern, and Northern Plumes (Lodi Plumes). Monitoring and sampling activities will be
conducted at Central, Western, Southern, and Northern Plumes Plume wells in accordance with
the revised Monitoring and Reporting Order No. R5-2018-0800 (Order), issued by the Central
Valley Regional Water Quality Control Board (Water Board) on January 11, 2018.
As per the revised Order, the Water Board has reduced the monitoring and sampling frequency
of the Lodi Plumes monitoring wells to semi-annual during the I" and 3`d quarters. The Water
Board has similarly reduced the reportin.f, with a semi-annual report due after the I" quarter
event and an annual report due after the 3 quarter event.
SCOPE OF SERVICES
The scope of services (SOS) includes the costs and services associated for performing semi-
annual monitoring, sampling, and reporting services of the Lodi Plumes monitoring wells for a
period of two years:
■ Year I — Third quarter of 2019 and first quarter of 2020
• Year 2 — Third quarter of 2020 and first quarter of 2021
CHT proposes to perform the following tasks for this Scope of Services:
• Task 1: Monitoring and Sampling
■ Task 2: Data Analysis and Reporting
• Task 3: Project Management
• Task 4: Out of Scope Services
175 N. Ft. MONTE AVENUE, LOS ALTOS, CA 94022 TEL. -415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services Page 2
Lodi Central, Western, Southern, and Northern Plumes
July 22, 2019
TASK 1 MONITORING AND SAMPLING
Prior to commencement of field work, the current site-specific Health and Safety Plan (HASP)
will be reviewed and updated for the project as required by the Occupational Health and Safety
Administration (OSHA) standard guidelines (29 CFR 1910.120), and by California Occupational
Health and Safety Administration (Cal -OSHA) guidelines ( CCR Title 8, Section 5192 ). All
CHT field staff and any potential subcontractors will review and sign the HASP before
beginning field operations at the site.
Monitoring and sampling will be conducted for two years, beginning third quarter 2019
and extending through the first quarter 2021, with options for one (1) extension for an
additional two years. Monitoring and sampling activities will continue to be conducted at the
Lodi Plumes monitoring wells in accordance with the revised Order No. 115-2018-0800. As in
previous sampling events, Passive Diffusion Bag (PDB) samplers will be used in all monitoring
wells; hence, typical indicator parameters (pH, electrical conductivity, and temperature) that are
normally collected during well purging, will not be collected as they are not applicable. Depth -
to -Groundwater (DTW) will be measured quarterly to the nearest 0.01 foot in all accessible wells
and recorded on CHT's Groundwater Gauging Form and Groundwater Sampling Form for PDBs.
Of the seventy seven (77) wells in the program, five (5) wells — MW -13, MW -16, MW -18,
G -16C, and G -18C — will be monitored for DTW measurements only. Groundwater sampling
activities will be performed at seventy two (72) wells annually (third quarter of 2019 and 2020),
and fifty two (52) wells semi-annually (first quarter of 2019 and 2020), per the schedule
presented on the Table shown in the next page.
The Table indicates the respective number of samples collected during the semi-annual and
annual sampling events. Based on the manufacturer's recommendation, the PDB samplers will be
deployed at depths within the screened intervals a minimum of two weeks prior to sample
retrieval so as to provide adequate time to equilibrate. For our sampling event, the PDBs to be
collected in a given sampling event will be deployed during the previous monitoring and
sampling event. Special care will be taken to avoid potential cross -contamination of the PDB,
hanger assembly, and suspension cable during deployment, including ensuring that all sample
deployment cables are straight, and the PDB does not lodge in the casing prior to reaching the
required depth. The PDB samplers will be procured pre -filled with de -ionized water from the
Eon Products Inc. prior to deployment in the wells.
The PDB sample for a given well will be retrieved from the well and immediately dispensed into
three laboratory prepared 40 -milliliter volatile organic analysis (VOA) sample containers that
have already been assigned pre -completed sample labels. Following sampling completion, the
samples will be immediately placed in an iced -cooler for delivery under appropriate chain -of -
custody protocol to a California -certified analytical laboratory. All relevant sample collection
information, including sample collection time and date, sample depth, groundwater depth, depth
to well bottom, sampling technician's name, and duplicate samples, if any, will be recorded by
CHT on its Groundwater Sampling Form. DTW measurements for each monitoring well will be
performed prior to PDB retrieval and depth to well bottom measurements will be recorded
following PDB retrieval. CHT assumes that any needed access agreements' are in place with the
owners of the property where the monitoring wells of the Lodi Plumes are located.
175 N. EL MONTE AVENUE. LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services Page 3
Lodi Central, Western, Southern, and Northern Plumes
July 22, 2019
MONITORING & SAMPLING FREQUENCY r
Semi -Annual 2 Annual 3 Groundwater Zone
Centrad Plume Wells
G-04, G-05, G-06, G-08, G-11, G-12, G-13,
0-14A, G -15A, G -16A, G -17A, G -18A, G-10, MW -08, MW -15,
G-1 9A, G -24A, MW -09, MW -12, MWl3*, MW -17, MW -24A
Shallow < 75 feet
MW -18*, MW -21A, PCP -04
G- 16B, G -24B, G -25A, MW -21 B, MW -22B, G -14B, MW -24B, MW -24C
Intermediate
MW -23B, MW -25B
75 < 125 feet
Deep
G -25B, MW -21 C, MW -22C, MW -23C
G -14C, G -18B
125:5 150 feet
G -16C*, G -18C*, MW -27D
G -25C, MW -25C, MW -26D
Deeper> 150 feet
34 _
113
ftfwft
Western Plume Wells
MW -11, MW -16*
**
Shallow < 75 feet
WMW-IA **
Deep
125 < 150 feet
WMW-113, WMW-1C, WMW-2A, WMW-2B,' **
Deeper> 150 feet
WMW-2C, WMW-2D
-
9
Q
A of Wdls
Southern Plume Wells
OS -2U, SA -03, SA -06, SA -07, SA -09, SA -10 MW -19, SA -01, SA-02,
Shallow < 75 feet
SA-04, SA -05, SA -08
OS -2L„ SMW-IA OS -1 Intermediate
75 < 125 feet
SMW-1B ** Deeper> 150 feet
9 7 Al Of Wdh
Northern Plume Wells
MW -2, MW -5 **
Shallow <75 feet
Deeper> l50 feet
NMW-IA, NMW-IB, NMW-1C **
S 0 M of Wdls
NOTES
All shall be monitored semi-annually for Depth to Groundwater
Z Wells shall be sampled semi-annually during the first (January - March) and third (July - September) quarters.
3 Wells shall be sampled annually during the third quarter ofeach year.
• MW -13, MW -16, MW -18, G -16C, and G-1 SC are monitored for Depth to Groundwater only.
'• Semi-annual sampling requirements for wells
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415.424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services Page 4
Lodi Central, Western, Southern, and Northern Plumes
July 22, 2019
TASK 2 DATA ANALYSIS, REPORTING, AND GEOTRACKER COMPLIANCE
Following completion of the analytical program in accordance with the Project, each sample will
be analyzed by a California -certified analytical laboratory using U.S. Environmental Protection
Agency (EPA) sample preparation Method 5030B and EPA analytical Method 8260B. For
consistency with previous analytical program, in addition to the 8260B full -spectrum scan,
methyl tertiary butyl ether (MTBE), carbon disulfide, and acetone will also be reported.
For quality assurance and quality control (QA/QC) purposes, CHT will analyze ten percent of
the total number of samples retrieved as QA/QC duplicate samples and one trip blank per cooler.
In addition to Level II QA/QC procedures used by the analytical laboratory, the relative percent
difference (RPD) between the primary and duplicate samples will be calculated and documented
in the monitoring reports.
Semi-annual data analysis, reporting, and GeoTracker submittal will be performed for two years.
CHT will maintain the City's EQuIS chemical database containing historical analytical data for
the Lodi Plume wells. For each semi-annual period, the analytical laboratory will provide a
GeoTracker compatible Electronic Data Deliverable (EDD) for uploading to GeoTmcker and an
EQuIS compatible EDD for addition to the project database. CHT will ensure that the EDDs will
be processed through a rigorous set of electronic quality checks and procedures before being
imported into the database. To ensure the data integrity of all the samples, CHT will randomly
check ten percent (10%) of all the monitoring samples for completeness and accuracy against the
laboratory PDF and field notes during the reporting stage, and another ten percent (10%) during
the peer -review stage.
Following the generation and QA/QC of the required tables and figures, CHT will evaluate the
data and prepare a monitoring report as per the requirements of the Order. As per the Order the
semi-annual report will include the following minimum information:
a, A description and discussion of the groundwater sampling event and results, including
trends in the concentrations of pollutants and groundwater elevations in the wells, how
and when samples were collected, and whether the pollutant plume(s) is delineated.
b. Groundwater contour maps for alt groundwater zones, if applicable.
c. lsocontour concentration maps for all groundwater zones and all major constituents of
concern, if applicable.
d. A table showing well construction details such as well number, groundwater zone being
monitored, coordinates (longitude and latitude), ground surface elevation, reference
elevation, elevation of screen, elevation of bentonite, elevation of filter pack, and
elevation of well bottom.
e. Cumulative data tables for all major constituents of concern containing the water quality
analytical results and depth to groundwater for all monitoring wells.
C Copies of the laboratory analytical data report.
g. The status of any ongoing remediation, including cumulative information on the mass of
pollutant removed from the subsurface, system operating time, the effectiveness of the
system, and any field notes pertaining to the operation and maintenance of the system.
1751N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-]009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services Page 5
Lodi Central, Western, Southern, and Northers Plumes
July 22, 2019
h. If applicable, the reasons for and duration of all interruptions in the operation of any
remediation system, and actions planned or taken to correct and prevent interruptions.
The Annual Report for a given year (2019 and 2020) will contain an evaluation of the
effectiveness and progress of the investigatiop and remediation, the information listed above for
the semi-annual report, and the following minimum information:
a. Both tabular and graphical summaries of all data obtained during that year (2019 / 2020)
b. Groundwater contour maps and pollutant concentration maps containing all data obtained
during the previous year.
c. Cumulative data tables for all major constituents of concern containing the water quality
analytical results and depth to groundwater for all monitoring wells.
d. A discussion of the long-term trends in the concentrations of the pollutants in the
groundwater monitoring wellss.
e. An analysis of whether the pollutant plume is being captured by an extraction system or
is continuing to spread.
f. A description of all remedial activities conducted during the year, an analysis of their
effectiveness in removing the pollutants, and plans to improve remediation system
effectiveness.
g. An identification of any data gaps and potential deficiencies/redundancies in the
monitoring system or reporting program.
h. If applicable, a proposal and rationale for any revisions to the groundwater sampling plan
frequency and/or list of analytes.
i. The results of any monitoring done more frequently than required at the locations
specified in the Order also shall be reported to the Water Board.
As the Order also requires summaries of the remedial system performance in the monitoring
reports, CHT will work with the City's current remedial consultant that operates the Lodi Central
Plume (LCP) source -area soil vapor extraction (SVE) system and the recently installed Church /
Tokay groundwater extraction and treatment (GWET) system to provide the required remedial
summary in the monitoring reports.
In compliance with the requirements of the California Code of Regulations, Title 23, Division 3,
Chapter 30, the monitoring reports (and EDD's of analytical data) will be submitted
electronically by CHT to the Water Board GeoTracker database system. The 2019 Annual
Report will be submitted electronically to the Geo Tracker database system by
November 1, 2019, the 2020 Semi -Annual Report will be submitted on May 1, 2020, the 2020
Annual Report will be submitted electronically to the Geo Tracker database system by
November 1, 2020, and the 2021 Semi -Annual Report will be submitted on May 1, 2021. The
reports will be completed in accordance with the Order and submitted to the City in draft form
for review two weeks prior to the above submittal dates. Revised reports incorporating mutually
agreeable comments will be submitted to the Water Board within one week of receiving City
comments and by the above prescribed submittal dates.
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services Page 6
Lodi Central, Western, Southern, and Northern Plumes
July 22, 2019
TASK 3 PROJECT MANAGEMENT AND CLIENT CONSULTATION
Under this Task, CHT will perform project management activities that will include, but not
limited to, budget tracking, invoicing, payment for analytical laboratory services, and
communication with the Client as well as the Water Board. All field activities, including PDB
deployment, depth to water measurements, and PDB sample retrieval will be properly scheduled
in advance with the appropriate City personnel. Additionally, CHT will coordinate with the City
and the City's contracted laboratory (Moore Twining Associates, Inc. of Fresno, California) to
obtain the analytical data for water supply wells No. 02, No. 06R, and No. 08 that are sampled
by the City's Water Division.
TASK 4 OUT OF SCOPE SERVICES
In addition to the above stated Tasks, necessary out -of -scope work would include but is not
limited to the following:
• Ongoing well maintenance and repairs, such as well cap and well -box replacements as
needed on the current monitoring well network of 77 monitoring wells.
■ Procurement of required permits and coordination of inspections with San Joaquin
County, if necessary, to complete the out -of -scope work.
• Ongoing evaluation, procurement, and replacement of PDB suspension tethers, as
needed, to insure sample integrity and correct deployment depths.
• Additional unanticipated out -of -scope work as requested by the City.
FEE ESTIMATE
CHT costs for performing the above stated SOS is based on our experience completing similar
work on this Project for the third quarter 2018 and first quarter 2019. The costs are based on a
time -and -expenses basis to not exceed our estimated fee of $57,320 for Year 1, which also
includes a time and materials budget estimate of $5,000 for potential out -of -scope work that may
be required as part of the Project or as requested by the City. CHT will provide cost estimates in
advance of performing any out -of -scope services, if necessary, as outlined in Task 4 during the
course of the Project. The attached Estimated Budget table provides a breakup of the costs
for completing the different Tasks under the SOS.
Potential future costs on an annual basis have also been presented for Year 2, which represent
work performed on the Project from the third quarter 2020 through the first quarter 2021.
The estimated costs assume an annual increase of 3% to account for cost of living increases
to CHT billing rates. These are projected costs and annual Amendments will be requested
from the City to reflect the true costs of the project at the time. The total value for the
Groundwater Monitoring and Reporting Services for a period of two (2) years is
approximately $116,209.
CHT billing rates shown in the attached Estimated Budget table will be in effect for the duration
of this Project. Equipment owned by CHT will be charged at the rates provided in the attached
table. All equipment rentals (if necessary) and subcontractor/ sub -consultant fees (including
laboratory costs) will be charged at cost +10% markup.
175 N. EL MONTE AVENUE. LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services Page 7
Lodi Central, Western, Southern, and Northern Plumes
July 22, 2019
SCHEDULE
Work will commence in September 2019 upon receipt of your written authorization. CHT looks
forward to assisting the City on this project. Please do not hesitate to contact Varinder Oberoi at
(415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech, LLC
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424J009
9
!
■
] gas■% sas a a
$
|
,
|
} %Isat sa a ■
$
|
| ,
! §§§ asa
■ a
§
•}|
,.,,- ���
. �
.
§
B�
229§
sas
■ ■ it
)
�!
�|
�.,��
---
■,�
;!
s�2■a
�
K
.
|
§
§
..
izaM2
|
»
|
'§
Kf �2®
�§
■
Exhibit 1 B
AMENDMENT NO. 2
CIVIL HYDRO TECH, LLC.
PROFESSIONAL SERVICES AGREEMENT
THIS AMENDMENT, made and entered this day of February, 2020, by and between the
CITY OF LODI, a municipal corporation (hereinafter "CITY"), and CIVIL HYDRO TECH, LLC., a
California limited liability corporation (hereinafter called "CONTRACTOR").
W I T NESSETH:
1. WHEREAS, CONTRACTOR and CITY entered into the Professional Services Agreement on
May 6, 2019 and Amendment No. 1 on September 18, 2019, attached hereto as Exhibit 1 and
1A, and made a part hereof; and
2. WHEREAS, CITY requested to increase the fees by $43,000, for a total not to exceed amount
of $300,909, and amend the existing scope of services to include request for closure reporting
of the SVR/GWE system, as set forth in Exhibit 2, attached hereto and made part of; and
3. WHEREAS, CONTRACTOR agrees to said amendment; and
NOW, THEREFORE, the parties agree to amend the not to exceed amount under the
Agreement and expand the scope of services set forth above. All other terms and conditions of the
Agreement remain unchanged.
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this Amendment No. 2 on
the date and year first above written.
CITY OF LODI, a municipal corporation
Herein above called "CITY"
BY: 1
S SCHW UE
City Manager
Attest:
PAMELA M. FARRIS
Assistant City Clerk
Approved as to Form;
E.
CJANI_. MAGDICH
City Atto ey
CIVIL HYDRO TECH, LLC., a California limited
liability company
Hereinabove called "CONTRACTOR"
4 '
By:
VARINbfk OBEROI
Principal Hydrologist
CIVIU HYUUC TECH
G�vi.L/ Ern �rtic+faG/ Watiw Rw"fr,&
January 6, 2020
Mr. Charlie Swimley
Public Works Director
City of Lodi
221 West Pine Street
Lodi CA 95240
Exhibit 2 to Amendment No. 2
SENT VIA: EMAIL
SUBJECT: Proposal for Additional Funding for Groundwater Program and Plume
Management, City of Lodi, California
Dear Mr. Swimley:
Per your request, Civil Hydro Tech (CHT) has prepared the following additional scope of work
and estimated costs for providing continued support to the City of Lodi's (City) groundwater
program and plume management activities. The proposed scope of work is based on our
conversation with the Regional Water Quality Control Board, Central Valley Region (Water
Board) during our meeting on September 26 2019, and consists of tasks related to the on-going
efforts to obtain closure of the Central Plume Source Area (CPSA) soil vapor extraction (SVE)
system and management of the City groundwater plumes. The proposed additional scope of work
will include performing and managing the following tasks —
1. Providing environmental consulting services to the City on the several groundwater
contaminant plumes that are currently in monitoring and cleanup phases, including
meetings with the Water Board and the City.
2. Prepare a Request for Closure report, as per the request of the Water Board, that
summarizes the various activities and sampling results within the CPSA since the start of
soil vapor extraction (SVE) for remediating the soil beneath the CPSA. This report is
being prepared to obtain approval from the Water Board for the closure and removal of
CPSA SVE system along with the already closed CPSA GWET system. The report will
also provide recommendations and actions requested by the Water Board to target the
remnants of the tetrachloroethene (PCE) plume in the soil beneath the CPSA.
A detailed description of each of the proposed scope of work is provided below.
Task 5f — Provide On-call Environmental Consulting Services for City -Wide Plume
Management
CHT is requesting additional funding for this ongoing Task for which CHT will continue to
provide environmental consulting services to the City for the groundwater contaminant plumes
that are currently in monitoring and cleanup phases, and to address issues that continue to arise
and are not currently covered by active Task orders. Previously, this Task has included additional
indoor air and soil vapor monitoring of the CPSA, as per the request of the Water Board, and
coordinating and meeting with the Water Board regarding issues related to the groundwater
plumes. This Task will provide a mechanism for CHT to continue this support as well as provide
the City staff input related to the management of these groundwater plumes.
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Additional Funding for Groundwater Program and Plume Management Page 2
January 6, 2020
Task 5g — Prepare a Request for Closure for CPSA SVE System
The results of the recent passive soil gas (PSG) and indoor air sampling in the CPSA (Task 5a,
5b) indicate that the existing SVE system has 1) significantly decreased the PCE plume beneath
the CPSA and 2) PCE concentrations within indoor air at the businesses and residences in the
vicinity of the CPSA did not exceed applicable environmental screening levels. CHT and the
City of Lodi presented these results to the Water Board at a meeting on September 26, 2019.
The Water Board requested that the City submit a comprehensive report detailing remedial and
investigative actions to date and a proposed approach for dealing with remnant PCE in soil
beneath the CPSA to be included with the Request for Closure of the SVE system.
CHT has already evaluated several remedial alternatives for remnant PCE including installation
of a passive soil vapor extraction system, installation of additional shallow SVE wells, and
targeted soil excavation to remove potential remnant PCE in the soil beneath the CPSA. The
targeted soil excavation is the preferred and will be the recommended alternative when
requesting system closure on the basis of overall effectiveness, cost and feasibility.
To complete the additional work in this task, CHT is requesting $18,000 in additional funds to
supplement the funds remaining from Task 5c. This Request for Closure will be reviewed by
Phil Smith, who previously was the managing principal of this project. The Request for Closure
will include a site and remedial history, figures and tables representing the reduction in PCE over
the life of the SVE system, an outline of steps required for the removal of the SVE system
history. Task 5g will include the following activities:
• Prepare a Draft CPSA SVE and GWET systems Request for Closure report. The draft
report will be presented to the City for review and comment;
• Senior technical review by Phil Smith;
• Meet with the City to discuss our proposed path to closure; and,
• Prepare and submit a Finalized Request for Closure to the Water Board.
We assume the City will provide one round of comments on the draft Request for Closure and
that the final Request for Closure will be submitted by CHT to the Water Board on the City's
behalf.. Additional work related to the closure of the SVE system will be described in later tasks,
and will likely include a Work Plan for the proposed soil removal, contracting and oversight of
the system removal, well destruction reports for the county of San Joaquin, and a final Remedial
Action Completion Report detailing system removal, implemented remedial actions and
confirmation sampling results, and long-term health and safety measures such as quarterly or
annual air quality monitoring or recommendations regarding potential land use restrictions.
ESTIMATED FEE
CHT proposes to perform the work on a time -and -expense basis in accordance with the terms of
our City of Lodi Professional Services Agreement. We will not exceed our estimated fee
without your prior written authorization. A summary of estimated cost by Tasks is provided in
Table l below.
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Additional Funding for Groundwater Program and Plume Management Page 3
January 6, 2020
TABLE 1. ESTIMATED FEE
Sf Provide On-call Environmental Consulting $ 25,000
Services for City -Wide Plume Management
5 g
Prepare the Draft and Final CPSA SVE System $ 18,000
Closure Report
TOTAL
S 43,000
Please do not hesitate to contact Varinder Oberoi at (415) 424-3009 with any questions regarding
this proposal.
Sincerely,
Civil Hydro Tech
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL. 415-424-3009
Exhibit 1 C
AMENDMENT NO. 3
CIVIL HYDRO TECH, LLC.
PROFESSIONAL SERVICES AGREEMENT
THIS AMENDMENT, made and entered this day of- Ju�2d20, by and between the CITY
OF LODI, a municipal corporation (hereinafter "ClTY"), and CIVIL HYDRO TECH, LLC., a California
limited liability corporation (hereinafter called "CONTRACTOR").
WITNESSETH:
1. WHEREAS, CONTRACTOR and CITY entered into the Professional Services Agreement on
May 6, 2019, Amendment No. 1 on September 18, 2019, and Amendment No. 2 on February
18, 2020, (collectively the "Agreement% attached hereto as Exhibits 1, 1A and 1B,
respectively, and made a part hereof; and
2. WHEREAS, CITY requested to increase the fees under the agreement by $157,500, for a
total not to exceed amount of $458,409, and amend the existing scope of services to include
consulting and project management services for decommissioning and removal of PCE/TVE
groundwater and SVE system, as set forth in Exhibit 2, attached hereto and made part of; and
3. WHEREAS, CONTRACTOR agrees to said amendments; and
NOW, THEREFORE, the parties agree to amend the not to exceed amount under the
Agreement and expand the scope of services as set forth above. All other terms and conditions of the
Agreement remain unchanged.
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this Amendment No. 3 on
the date and year first above written.
CITY OF LODI, a municipal corporation
Herein above called "CITY"
By: �.
STEPHEN SCHVVABAOER
City Manager
Attest:
Xx,
tt Isrk JLnni��� Cusrv►iY'
Approved as to Form:
Janice Magdich
JANICE D. MAGDICH
City Attorney �e
CIVIL HYDRO TECH, LLC.; a California limited
liability company
Hereinabove called "CONTRACTOR"
By
VARINDE ERU
Principal Hydrologist
Exhibit 2 to Amendment 3
CIVIL IFIMUC TTcr
C",al Wmier Reseuree-/ Dow%��
June 23, 2020 SENT VIA: EMAIL
Mr. Charlie Swimley
Public Works Director
City of Lodi
221 West Pine Street
Lodi CA 95240
SUBJECT: Proposal for Providing Consulting and Project Management Services for
Decommissioning and Removal of the CPSA GWET AND SVE Systems
City of Lodi, California
Dear Mr. Swimley:
Per your request, Civil Hydro Tech (CHT) has prepared the following proposed scope of work
and estimated costs to provide consulting and project management services related to the
decommissioning and removal of the City of Lodi's (City) Central Plume Source Area (CPSA)
groundwater extraction and treatment (GWET) and soil vapor extraction (SVE) systems. The
proposed scope of work is based on the review of the May 12, 2020 Central Plume Source Area
Groundwater Extraction and Soil Vapor Extraction Systems Closure Report prepared by CHT on
behalf of the City. The Water Board approved the recommended approach for CPSA remedial
systems closure and decommissioning in a letter to Andrew Richle dated May 18, 2020. The
proposed scope of work will include performing and managing the following tasks: —
1. Providing consulting, reporting, and project management services for excavating soil
suspected to contain residual PCE and TCE contamination that is resulting in the hight
soil vapor concentrations along the alley sewer line near Pleasant Avenue.
2. Providing consulting, reporting, and project management services for activities related to
decommissioning and removal of the CPSA GWET and SVE systems.
3. Conducting 2 annual indoor and ambient air monitoring events within the CPSA and its
vicinity.
4. Preparation of a Closure Report following completion of the above activities A detailed
description of each of the proposed scope of work is provided below.
Task 6a — Soil Excavation — Alleyway and Pleasant Avenue Intersection
Results of passive soil gas (PSG) sampling conducted during June and August 2019 in the
CPSA as part of the closure evaluation of the CPSA remedial systems indicated the presence of
elevated soil vapor concentrations of PCE and TCE in PSG samples closest to the sewer line in
the alleyway near Pleasant Avenue. As part of the recommendations by the City, and approved
by the Water Board, the area around the sewer line in the alleyway near Pleasant Avenue will
be excavated and backfilled with imported clean fill soil. CHT will perform the following
activities for this Task:
• Prepare a Work Plan for soil excavation activities to be submitted to the Water Board
for its approval prior to commencement of soil excavation activities;
175 N. EL MONTE AVE., LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Consulting and Project Management Services — Decommissioning Page 2
and Removal of the CPSA Remedial Systems
June 23, 2020
• Prepare a Bid Package which will include the relevant plans and specifications for the
soil excavation activities;
• Prepare an Engineer's Cost Estimate
• Prepare a Site and Task -specific Health and Safety Plan;
• Perform soil sampling of excavated soil and the excavation sidewalls and floors after
completion of the soil excavation;
• Perform air monitoring during soil excavation activities
• Provide project management services; and,
• Prepare a letter report summarizing the results of the soil excavation activities and submit
it to the City for review and comments. CHT will then incorporate the comments of the
City and submit the finalized letter report to the Water Board.
Task 6a Deliverables: Work Plan to Water Board, Bid Package and Engineer's Cost Estimate to
the City, and letter report to the Water Board documenting the soil excavation activities
Task 6b — Project Management — Decommissioning and Removal of the CPSA GWET and
SVE Systems
The Water Board, in its May 18, 2020 letter the City, approved the decommissioning and
removal of the CPSA GWET and SVE systems. CHT proposes to perform the following
activities under Task 6b —
• Prepare a work plan for all tasks related to decommissioning and removal of the system
including soil vapor and groundwater extraction well abandonment either by over-drilling
or pressure grouting, depending on the direction of the San Joaquin Department of
Environmental Health (SJDEH), and submit it to the Water Board for approval;
• Prepare a Site and Task -specific Health and Safety Plans
• Prepare a Bid Package which will include the relevant plans and specifications for the
CPSA GWET and SVE systems decommissioning activities
• Prepare an Engineer's Cost Estimate
■ Perform air monitoring during decommissioning and drilling activities
• Provide project management during abandonment, either by over-drilling or pressure
grouting, of the SVE and the groundwater extraction wells;
• Preparation of well destruction reports for San Joaquin County ; and,
• Provide project management and site oversight on the City's behalf during the
dismantling and removal of the above -ground components of the GWET and SVE
systems, and grouting, capping and abandonment in place, per City of Lodi Standards, of
all the remedial system piping.
Task 6b Deliverables: Work Plan to the Water Board and Bid Package and Engineer's Cost
Estimate to the City _
175 N. EL MONTE AVE., LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Consulting and Project Management Services — Decommissioning Page 3
and Removal of the CPSA Remedial Systems
June 23, 2020
Task 6c — Annual Indoor Air Sampling
The Water Board, in its May 18, 2020 letter the City, recommended that the City should perform
an annual indoor and ambient air sampling for a period of two years as part of its follow up
activities related to the decommissioning and removal of the CPSA GWET and SVE systems.
The Water Board also recommended that the indoor air samples should be collected at adjacent
business and residential locations that were previously sampled in the 2019 indoor air sampling
event performed by CHT. CHT proposes to perform the following activities under Task 6c —
Prepare a work plan for sampling and analysis of indoor and ambient air in adjacent
businesses and residences, and submit it to the Water Board for approval;
■ Collect up to 20 samples of indoor and ambient air at the proposed locations, and submit
them for laboratory analyses; and,
Prepare an annual letter report summarizing the results of the indoor air sampling event
and submit it to the City for review and comments. CHT will then incorporate the
comments of the City and submit the finalized report to the Water Board.
Task 6c Deliverables: Two rounds of annual sampling, meeting with the City, letter report to the
Water Board documenting the results
Task 6d — Preparation of the CPSA GWET and SVE Systems Decommissioning and
Removal Completion Report
Following completion of Tasks 6a and 6b, CHT will prepare a Decommissioning and Removal
Completion Report (Report) that will document the activities associated with the
decommissioning and removal of the CPSA GWET and SVE systems. As part of this Task,
CHT will perform the following:
• Prepare a Draft Report to the City for review and comment;
• Meet with the City to discuss the Draft Report; and,
• Prepare and submit a Final Report to the Water Board.
We assume the City will provide one round of comments on the Draft Report and that the Final
Report will be submitted by CHT to the Water Board on the City's behalf.
Task 6d Deliverables: Draft Completion Report to the City and Final Completion Report to the
Water Board
Task 5f — Provide On-call Environmental Consulting Services for City -Wide Plume
Management
CHT is requesting additional funding for this ongoing Task for which CHT will continue to
provide environmental consulting services to the City for the groundwater contaminant plumes
that are currently in monitoring and cleanup phases, and to address issues that continue to arise
and are not currently covered by active Task orders. Previously, this Task has included additional
indoor air and soil vapor monitoring of the CPSA, coordinating and meeting with the Water
Board, and sub slab sampling related to the LCP. This Task will provide a mechanism for CHT
to continue this support as well as provide the City staff input related to the management of these
groundwater 2lumes.
175 N. EL NIONTE AVE., LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Consulting and Project Management Services — Decommissioning Page 4
and Removal of the CPSA Remedial Systems
June 23, 2020
ESTIMATED FEE
CHT proposes to perform the work on a time -and -expense basis in accordance with the terms of
our City of Lodi Professional Services Agreement. The estimate does not include any permitting
costs. Additionally, we have assumed the City will provide us an AutoCad or GIS file showing
the location of the utility lines like sewer, storm drain, and water as well as the location of the
GWET and SVE system remedial system piping. We will not exceed our estimated fee without
your prior written authorization. A summary of the estimated cost by Tasks is provided in
Table 1 below and CHT's Fee Schedule is provided in the Attachment.
TABLE 1. ESTIMATED FEE
TASK
DESCRIPTION
ESTIMATED FEE
6a
Soil Excavation — Alleyway & Pleasant Ave. Intersection
$ 49,500
6b
Project Management — Decommissioning and Removal of
$ 55,000
the CPSA GWET and SVE Systems
6c
Annual Indoor Air Sampling (2 rounds)
$ 19,800
6d
Preparation of Final Decommissioning and Removal
$ 13,200
Completion Report
5f
Provide On-call Environmental Consulting Services for
$ 20,000
City -Wide Plume Management
TOTAL
$ 157,500
SCHEDULE
Work will commence immediately upon receipt of Notice to Proceed. We anticipate completing
the proposed scope of work within approximately six months. Please do not hesitate to contact
Varinder Oberoi at (415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
175 N. EL MONTE AVE., LOS ALTOS, CA 94022 TEL: 415-424-3009
Exhibit 1 D
AMENDMENT NO.4
CIVIL HYDRO TECH, LLC.
PROFESSIONAL SERVICES AGREEMENT
THIS AMENDMENT, made and entered this _Z9 day of March, 2021, by and between the
CITY OF LODI, a municipal corporation (hereinafter "CITY"), and CIVIL HYDRO TECH, LLC., a
California limited liability corporation (hereinafter called "CONTRACTOR").
WITNESSETH:
1. WHEREAS, CONTRACTOR and CITY entered into the Professional Services Agreement on
May 6, 2019, Amendment No. 1 on September 18, 2019, Amendment No. 2 on February 18,
2020, and Amendment No. 3 on August 4, 2020 (collectively the "Agreement"), attached
hereto as Exhibits 1, 1A, 1B and 1C, respectively, and made a part hereof, and
2. WHEREAS, CITY requested to extend the term of the Agreement to April 30, 2023; and
3. WHEREAS, CITY requested to increase the fees under the Agreement by $163,864, for a
total not to exceed amount of $622,273, as set forth in Exhibit 2, attached hereto and made
part of; and
4. WHEREAS, CONTRACTOR agrees to said amendments; and
5. WHEREAS, This Agreement and other documents to be delivered pursuant to this Agreement
may be executed in one or more counterparts, each of which will be deemed to be an original
copy and all of which, when taken together, will be deemed to constitute one and the same
agreement or document, and will be effective when counterparts have been signed by each of
the parties and delivered to the other parties. Each party agrees that the electronic signatures,
whether digital or encrypted, of the parties included in this Agreement are intended to
authenticate this writing and to have the same force and effect as manual signatures. Delivery
of a copy of this Agreement or any other document contemplated hereby, bearing an original
manual or electronic signature by facsimile transmission (including a facsimile delivered via
the Internet), by electronic mail in "portable document format" (".pdf') or similar format
intended to preserve the original graphic and pictorial appearance of a document, or through
the use of electronic signature software will have the same effect as physical delivery of the
paper document bearing an original signature.
NOW, THEREFORE, the parties agree to amend the not to exceed amount under the
Agreement as set forth above and extend the term of the Agreement. All other terms and conditions
of the Agreement remain unchanged.
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this Amendment No. 4 on
the date and year first above written.
CITY OF LODI, a municipal corporation CIVIL HYDRO TECH, LLC., a California limited
liability company
Herein above called "CITY" Hereinabove called "CONTRACTOR"
Steve Schwabauer
By: By:
STEPHEN SCHWABAUER VARINDER` BEROI
City Manager Principal Hydrologist
Attest:
J9'Y'
f FERC MIR
9y Clerk
Approved as to Form:
r
J NICE. MAGDICH
orney
Exhibit 2 to Amendment No. 4
CIVIL F YIDUC, TLCI-1
Ct.vc / Waw- Resor/ D�
January 8, 2021 SENT VIA: EMAIL
Mr. Charlie Swimley
Public Works Director — City of Lodi
221 West Pine Street
Lodi CA 95240
SUBJECT: Request for Approval of Amendment No. 4
Central, Western, Southern, and Northern Plumes Groundwater
Monitoring, Sampling, and Reporting Services Project and City -Wide Plume
Management Services
Lodi, California.
Dear Mr. Swimley:
At the request of the City of Lodi (City), Civil Hydro Tech, LLC (CHT) submits this proposal
for performing Groundwater Monitoring, Sampling, and Reporting Services for the Lodi Central,
Western, Southern, and Northern Plumes (Lodi Plumes) and City -Wide Plume Management
Services. This Amendment No. 4 is a continuation of ongoing consulting services for the Lodi
Plumes provided by CHT as part of the May 6, 2019 Professional Services Agreement (PSA)
between the City and CHT and subsequent Amendments 1, 2, and 3.
BACKGROUND
The current contract for the Groundwater Monitoring, Sampling, and Reporting Services for the
Lodi Plumes was contracted for a period of two years under Amendment I issued on
September 18, 2019, and also included an optional two (2) one (1) -year extension provision. As
per the City's request, CHT had provided costs for a period of two years commencing in
June 1, 2021 till May 31, 2023 for this project.
The current contract for City -Wide Plume Management Services was initially awarded in the
May 6, 2019 Professional Services Agreement (PSA) and subsequently amended two times with
Amendment No. 2 on February 18, 2020 and Amendment No. 3 on July 11, 2020. These
amendments were to fund ongoing environmental consulting services to the City on the Lodi
Plumes that are not currently covered by active Task Orders.
A generalized description of the scope of services to be completed for Amendment No. 4 is
provided below.
SCOPE OF SERVICES
The scope of services (SOS) includes the costs and services associated for performing the
following Tasks —
T'rsh I — 11111 Playne
At the City's request, CHT proposes to perform the following monitoring and sampling activities
for a period of two years at the Central, Western, Southern, and Northern Plurnes monitoring
wells in accordance with the revised Monitoring and Reporting Order No. R5-2018-0800
;Order), issued by the Central Valley Regional Water Quality Control Board (Water Board) on
January 11, 2018. :
175N. EL MONrE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 2
City -Wide Plume Management Services
January 8, 2021
• Year 1— Third quarter of 2021 and first quarter of 2022
• Year 2 — Third quarter of 2022 and first quarter of 2023
CHT proposes to perform the following tasks for this Scope of Services:
■ Task 1: Monitoring and Sampling
• Task 2: Data Analysis and Reporting
• Task 3: Project Management
■ Task 4:Out of Scope Services — This will include a proposed revision to
the current monitoring and sampling program that will result in
decreasing by 15 to 20% the number of sampling wells
TASK 1A MONITORING AND SAMPLING
Prior to commencement of field work, the current site-specific Health and Safety Plan (HASP)
will be reviewed and updated for the project as required by the Occupational Health and Safety
Administration (OSHA) standard guidelines (29 CFR 1910.120), and by California Occupational
Health and Safety Administration (CaI-OSHA) guidelines ( CCR Title 8, Section 5192 ). All
CHT field staff and any potential subcontractors will review and sign the HASP before
beginning field operations at the site.
Monitoring and sampling will be conducted for two years, beginning third quarter 2021 and
extending through the first quarter 2023 with options for one (1) extension for an additional two
(2) years. Monitoring and sampling activities will continue to be conducted at the Lodi Plumes
monitoring wells in accordance with the revised Order No. R5-2018-0800. As in previous
sampling events, Passive Diffusion Bag (PDB) samplers will be used in all monitoring wells;
hence, typical indicator parameters (pH, electrical conductivity, and temperature) that are
normally collected during well purging, will not be collected as they are not applicable. Depth -
to -Groundwater (DTW) will be measured quarterly to the nearest 0.01 foot in all accessible wells
and recorded on CHT's Groundwater Gauging Form and Groundwater Sampling Form for PDBs.
Of the seventy-seven (77) wells in the program, five (5) wells — MW -13, MW -16, MW -18,
G -16C, and G -18C — will be monitored for DTW measurements only. Groundwater sampling
activities will be performed at seventy-two (72) wells annually (third quarter of 2021 and 2022),
and fifty-two (52) wells semi-annually (first quarter of 2022 and 2023), per the schedule
presented on the Table shown in the next page.
The Table indicates the respective number of samples collected during the semi-annual and
annual sampling events under the current Order and will be modified following a submission and
approval of the revised monitoring and sampling plan. Based on the manufacturer's
-ecommendation, the PDB samplers will be deployed at depths within the screened intervals a
_ninimum of two weeks prior to sample retrieval so as to provide adequate time to equilibrate.
or our sampling event, the PDBs to be collected in a given sampling event will be deployed
during the previous monitoring and sampling event. Special care will be taken to avoid potential
cross -contamination of the PDB, hanger assembly, and suspension cable during deployment,
_ncluding ensuring that all sample deployment cables are straight, and the PDB does not lodge in
the casing prior to reaching the required depth. The PDB samplers will be procured pre -filled
with de -ionized water from the Eon Products Inc. prior to deployment in the wells.
175 N. CL MONTE AVENUE, LOS ALTOS, CA 94022 TCL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 3
City -Wide Plume Management Services
January 8, 2021
MONITORING & SAMPLING FREQUENCY 1
Semi -Annual 2
Annual 3 Groundwater Zone
Central Plume Wells
G-04, G-05, G-06, G-08, G-11, G-12, G-13,
G -14A, G -15A, G -16A, G -17A, G -18A,
G-10, MW -08, MW -15,
Shallow < 75 feet
G -19A, G -24A, MW -09, MW -12, MW13*,
MW -17, MW -24A
MW -18*, MW -21A, PCP -04
G-1613, G -24B, G -25A, MW -2113, MW -2213,
G-1413, MW -24B, MW -24C
Intermediate
MW -23B, MW -25B
75 < 125 feet
G -25B, MW -21C, MW -22C, MW -23C
G44C, G -18B
Deep
125 < 150 feet
G -16C*, G -18C*, MW -27D
G -25C, MW -25C, MW -26D
Deeper> 150 feet
34
13
# of Wells
Western Plume Wells
MW -11, MW -1 6*
**
Shallow <75 feet
WMW-IA
**
Deep
125 < 150 feet
WMW-1B, WMW-1C, WMW-2A, WMW-2B,
Deeper? 150 feet
WMW-2C, WMW-2D
9 -
0
# of Wells
Southern Plume Wells
1 MW -19, SA -01, SA -02,
OS -2U, SA -03, SA -06, SA -07, SA -09, SA -10 ;
Shallow < 75 feet
SA -04, SA -05, SA -08
t
OS -2L,, SMW-IA OS -1
Intermediate
75 < 125 feet
SMW-1B **
Deeper> 150 feet
9 7
# of Wells
Northern Plume Wells
MW -2, MW -5 * *
Shallow < 75 feet
NMW-1A, NMW-1B, NMW-1C
**
Deeper> 150 feet
5
0
# of Wells
57
20
Total Wells Sampled
NOTES
All shall be monitored semi-annually for Depth to Groundwater
- Wells shall be sampled semi-annually during the first (January - March) and third (Jul), - September) quarters.
Wells shall be sampled annually during the third quarter of each year.
MW -13, MW -16, MW -18, G -16C, and G -18C are monitored for Depth to Groundwater only.
Semi-annual sampling requirements for wells
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 4
City -Wide Plume Management Services
January 8, 2021
The PDB sample for a given well will be retrieved from the well and immediately dispensed into
three laboratory prepared 40 -milliliter volatile organic analysis (VOA) sample containers that
have already been assigned pre -completed sample labels. Following sampling completion, the
samples will be immediately placed in an iced -cooler for delivery under appropriate chain -of -
custody protocol to a California -certified analytical laboratory. All relevant sample collection
information, including sample collection time and date, sample depth, groundwater depth, depth
to well bottom, sampling technician's name, and duplicate samples, if any, will be recorded by
CHT on its Groundwater Sampling Form. DTW measurements for each monitoring well will be
performed prior to PDB retrieval and depth to well bottom measurements will be recorded
following PDB retrieval. CHT assumes that any needed access agreements' are in place with the
owners of the property where the monitoring wells of the Lodi Plumes are located.
TASK 1B DATA ANALYSIS, REPORTING, AND GEOTRACKER COMPLIANCE
Following completion of the analytical program in accordance with the Project, each sample will
be analyzed by a California -certified analytical laboratory using U.S. Environmental Protection
Agency (EPA) sample preparation Method 5030B and EPA analytical Method 8260B. For
consistency with previous analytical program, in addition to the 8260B full -spectrum scan,
methyl tertiary butyl ether (MTBE), carbon disulfide, and acetone will also be reported.
For quality assurance and quality control (QA/QC) purposes, CHT will analyze ten percent of
the total number of samples retrieved as QA/QC duplicate samples and one trip blank per cooler.
In addition to Level II QA/QC procedures used by the analytical laboratory, the relative percent
difference (RPD) between the primary and duplicate samples will be calculated and documented
in the monitoring reports.
Semi-annual data analysis, reporting, and GeoTracker submittal will be performed for two years.
CHT will maintain the City's EQuIS chemical database containing historical analytical data for
the Lodi Plume wells. For each semi-annual period, the analytical laboratory will provide a
GeoTracker compatible Electronic Data Deliverable (EDD) for uploading to GeoTracker and an
EQuIS compatible EDD for addition to the project database. CHT will ensure that the EDDs will
be processed through a rigorous set of electronic quality checks and procedures before being
imported into the database. To ensure the data integrity of all the samples, CHT will randomly
check ten percent (10%) of all the monitoring samples for completeness and accuracy against the
laboratory PDF and field notes during the reporting stage, and another ten percent (10%) during
the peer -review stage.
Following the generation and QA/QC of the required tables and figures, CHT will evaluate the
data and prepare a monitoring report as per the requirements of the Order. As per the Order the
semi-annual report will include the following minimum information:
a. A description and discussion of the groundwater sampling event and results, including
trends in the concentrations of pollutants and groundwater elevations in the wells, how
and when samples were collected, and whether the pollutant plume(s) is delineated.
b. Groundwater contour maps for alt groundwater zones, if applicable.
c. Isocontour concentration maps for all groundwater zones and all major constituents of
concern, if applicable.
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL; 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 5
City -Wide Plume Management Services
January 8, 2021
d. A table showing well construction details such as well number, groundwater zone being
monitored, coordinates (longitude and latitude), ground surface elevation, reference
elevation, elevation of screen, elevation of bentonite, elevation of filter pack, and
elevation of well bottom.
e. Cumulative data tables for all major constituents of concern containing the water quality
analytical results and depth to groundwater for all monitoring wells.
f. Copies of the laboratory analytical data report.
g. The status of any ongoing remediation, including cumulative information on the mass of
pollutant removed from the subsurface, system operating time, the effectiveness of the
system, and any field notes pertaining to the operation and maintenance of the system.
h. Capture Zone estimate of the Lodi central Plume (LCP) mid -plume groundwater
extraction and treatment (GWET) system groundwater extraction well EW -7R
i. If applicable, the reasons for and duration of all interruptions in the operation of any
remediation system, and actions planned or taken to correct and prevent interruptions.
The Annual Report for a given year (2019 and 2020) will contain an evaluation of the
effectiveness and progress of the investigation and remediation, the information listed above for
the semi-annual report, and the following minimum information:
a. Both tabular and graphical summaries of all data obtained during that year (2019 / 2020)
b. Groundwater contour maps and pollutant concentration maps containing all data obtained
during the previous year.
e. Cumulative data tables for all major constituents of concern containing the water quality
analytical results and depth to groundwater for all monitoring wells.
d. A discussion of the long-term trends in the concentrations of the pollutants in the
groundwater monitoring wells.
e. An analysis of whether the pollutant plume is being captured by an extraction system or
is continuing to spread.
f. A description of all remedial activities conducted during the year, an analysis of their
effectiveness in removing the pollutants, and plans to improve remediation system
effectiveness.
g. An identification of any data gaps and potential deficiencies/redundancies in the
monitoring system or reporting program.
h. If applicable, a proposal and rationale for any revisions to the groundwater sampling plan
frequency and/or list of analytes.
i. The results of any monitoring done more frequently than required at the locations
specified in the Order also shall be reported to the Water Board.
175 N. EI. VIOLATE /\VENUE, LOS ALTOS, C,1 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 6
City -Wide Plume Management Services
January 8, 2021
As the Order also requires summaries of the remedial system performance in the monitoring
reports, CHT will work with the City's current remedial consultant that operates the Church /
Tokay groundwater extraction and treatment (GWET) system to provide the required remedial
summary in the monitoring reports.
In compliance with the requirements of the California Code of Regulations, Title 23, Division 3,
Chapter 30, the monitoring reports (and EDD's of analytical data) will be submitted
electronically by CHT to the Water Board GeoTracker database system. The 2021 Annual
Report will be submitted electronically to the Geo Tracker database system by
November 1, 2021, the 2022 Semi -Annual Report will be submitted on May 1, 2022, the 2022
Annual Report will be submitted electronically to the Geo Tracker database system by
November 1, 2022, and the 2023 Semi -Annual Report will be submitted on May 1, 2023. The
reports will be completed in accordance with the Order and submitted to the City in draft form
for review one week prior to the above submittal dates. Revised reports incorporating mutually
agreeable comments will be submitted to the Water Board within one week of receiving City
comments and by the above prescribed submittal dates.
TASK 1C PROJECT MANAGEMENT AND CLIENT CONSULTATION
Under this subtask, CHT will perform project management activities that will include, but not
limited to, budget tracking,' invoicing, payment for analytical laboratory services, and
communication with the Client as well as the Water Board. All field activities, including PDB
deployment, depth to water measurements, and PDB sample retrieval will be properly scheduled
in advance with the appropriate City personnel. Additionally, CHT will coordinate with the City
and the City's contracted laboratory (Moore Twining Associates, Inc. of Fresno, California) to
obtain the analytical data for water supply wells No. 02, No. 06R, and No. 08 that are sampled
by the City's Water Division.
TASK 1D OUT OF SCOPE SERVICES
In addition to the above stated subtasks, necessary out -of -scope work would include but is not
limited to the following:
• Ongoing well maintenance and repairs, such as well cap and well -box replacements as
needed on the current monitoring well network;
• Procurement of required permits and coordination of inspections with San Joaquin
County, if necessary, to complete the out -of -scope work;
+ Ongoing evaluation, procurement, and replacement of PDB suspension tethers, as
needed, to ensure sample integrity and correct deployment depths; and,
"Additional unanticipated out -of -scope work as requested by the City or the Water Board.
Additionally, this subtask also includes the preparation of a Revised Monitoring and Sampling
Plan for the Lodi Plumes, and submitting it to the Water Board for approval during the first year
(202 1) of this Task.
175 N. EL NIONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 7
City -Wide Plume Management Services
January 8, 2021
FEE ESTIMATE — TASK 1
CHT costs for performing the above stated SOS is based on the costs for performing similar
tasks during the previous years. The costs are based on a time -and -expenses basis to not exceed
our estimated fee of $67,106 for Year 1, which also includes a time and materials budget
estimate of $12,000 for potential out -of -scope work that may be required as part of the Project or
as requested by the City. This subtask also includes costs for preparing the Revised Monitoring
and Sampling Plan for the Lodi Plumes, and submitting it to the Water Board for approval. CHT
will provide cost estimates in advance of performing any out -of -scope services, if necessary, as
outlined in Task Id during the course of the Project. The attached Estimated Budget table
provides a breakup of the costs for completing the different subtasks under Task 1.
Potential future costs on an annual basis have also been presented for Year 2, which represent
work performed on the Project from the third quarter 2022 through the first quarter 2023.
The estimated costs assume an annual increase of 3% for Tasks 1 through 3 to account for
cost of living increases to CHT billing rates. Task I d includes a time and materials budget
estimate of $5,000 for potential out -of -scope work that may be required as part of the Project or
as requested by the City. These are projected costs and annual Amendments will be requested
from the City to reflect the true costs of the project at the time. The total value for the
Groundwater Monitoring and Reporting Services for a period of two (2) years is
approximately $128,864.
CHT billing rates shown in the attached Estimated Budget table will be in effect for the duration
of this Project. Equipment owned by CHT will be charged at the rates provided in the attached
table. All equipment rentals (if necessary) and subcontractor/ sub -consultant fees (including
laboratory costs) will be charged at cost +10% markup.
Task 2 — On-call Environmental Consulfin!e Servieey fru. CitPI-4'de Plying Keifni,ernent
This Task will allow CHT to continue providing environmental consulting services to the City on
the several groundwater contaminant plumes that are currently in monitoring and cleanup phases,
and to address issues that arise and are not currently covered by active Task Orders.
Historically, this Task has provided a mechanism for CHT to continue to support as well as
provide the City staff input related to the management of these groundwater plumes. Past work
included, investigative sampling and reporting, meetings with the City and Water Board,
presentations to the Water Board, and responding to the Water Board review and comments to
our ongoing plume management tasks. Our labor hours would be detailed on monthly invoices
for this Task. The City requests that an additional $35,000 be authorized to ensure adequate
funding for on-going and future requirements of the Water Board.
ESTIMATED FEE
CHT proposes to perform the work on a time -and -expense basis in accordance with the terms of
our City of Lodi Professional Services Agreement. We will not exceed our estimated fee
without your prior written authorization. A summary of estimated cost by Tasks is provided in
Table 1 below. The attached Estimated Budget table providcs a breakup of the costs for
completing the different subtasks under Task 1.
175 N. EL iMONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Groundwater Monitoring, Sampling, & Reporting Services for Lodi Plumes Page 8
City -Wide Plume Management Services
January 8, 2021
TABLE 1. ESTIMATED FEE
Groundwater Monitoring, Sampling, and 1
1 Reporting Services for the Lodi Central, Western, $ 128,864
Southern, and Northern Plumes (Lodi Plumes)
SfOn-call Environmental Consulting Services for $ 35,000
City -Wide Plume Management
TOTAL 1 $ 163,864
SCHEDULE
Work will commence in May 2021 for Task 1 and immediately for Task 5f upon receipt of your
written authorization. CHT looks forward to assisting the City on this project. Please do not
hesitate to contact Varinder Oberoi at (415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech, LLC
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
175 N. EL MONTE AVENUE, LOS ALTOS, CA 94022 TEL: 415-424-3009
V N k w M N N
M M M M
K „
„„ N
M
LL
QO
w w ar
D
O
O
O
O
5
G
'„i
a uu6
w N
Y
T
r
�
r
i
D
s
e�
a €j
VVV
O
O
O
W C
KK Q
N
Y
J
1y�
1
oG tY
m
rl
e
4
i
rt
„
I ob
Q
B
�
N
4
rv�o
ie
rnm
�
=1
N
�
x
FQ-
N
G
K
~
c c t c t
7
a a a
v u v
u
N
N
a
E
N
o•ki
Q
i r
Exhibit 1 E
AMENDMENT NO.5
CIVIL HYDRO TECH, LLC,
PROFESSIONAL SERVICES AGREEMENT
Dee-ennbtr
THIS AMENDMENT, made and entered this 11L day of Uevem6er, 2021, by and between
the CITY OF LODI, a municipal corporation (hereinafter "CITY"), and CIVIL HYDRO TECH, LLC., a
California limited liability corporation (hereinafter called "CONTRACTOR").
WITNESSETH:
1. WHEREAS, CONTRACTOR and CITY entered into the Professional Services Agreement on
May 6, 2019, Amendment No. 1 on September 18, 2019, Amendment No. 2 on February 18,
2020, and Amendment No. 3 an August 4, 2024, and Amendment No. 4 on March 18, 2021
(collectively the "Agreement"). attached hereto as Exhibits 1, 1 A. 1 B, 1C, and 1 D. respectively,
and made a part hereof; and
2. WHEREAS, CITY requested to increase the fees under the agreement by $209,500, for a
total not to exceed amount of $830,733, and amend the existing scope of services to Include
consulting and project management services for southern plume remediation activities,
groundwater modeling, and city-wide plume management, as set forth in Exhibit 2, attached
hereto and made part of; and
3. WHEREAS, CONTRACTOR agrees to said amendments; and
NOW, THEREFORE, the parties agree to amend the not to exceed amount under the
Agreement as set forth above and extend the term of the Agreement. All other terms and conditions
of the Agreement remain unchanged.
IN WITNESS WHEREOF, CITY and CONTRACTOR have executed this Amendment No. 5 on
the date and year first above written.
CITY OF LODI, a municipal corporation
Herein above called "CITY"
Steve Schwabauer
By:
STEPHEN SCHWABAUER
City Manager
Approved as to Form
(JfNICE D, AGDICHAttorney
`V
CIVIL HYDRO TECH, LLC., a California limited
liability company
Hereinabove called "CONTRACTOR"
By:
VARINDE OBEROI
Principal Hydrologist
Exhibit 2 to Amendment No. 5
INN 1 I'1AC 11 ( 11.1
Civic/ e-vor0wW4-AZ4/ watt ►r Rasot~/ Deww4r&V
October 20, 2021 SENT VIA: EMAIL
Mr. Charlie Swimley
Public Works Director - City of Lodi
221 West Pine Street
Lodi CA 95240
SUBJECT: R e q uc-W Ln- A )roval o t 'Am enthnenI No. S
Proposal for Providing Consulting and Project Management Services for Lodi
Southern Plume Remediation Activities, Groundwater Modeling, and City -Wide
Plume Management
City of Lodi, California
Dear Mr. Swimley:
At the request of the City of Lodi (City), Civil Hydro Tech, LLC (CHT) submits this proposal
for providing Consulting and Project Management Services for the Lodi Southern Plume (LSP)
Remediation Activities, Groundwater Modeling to Evaluate the Migration of the Lodi Central,
Western, Southern, and Northern Plumes (Lodi Plumes), and City -Wide Plume Management.
This Amendment No. 5 is a continuation of ongoing environmental consulting services for the
Lodi Plumes provided by CHT as part of the May 6, 2019 Professional Services Agreement
(PSA) between the City and CHT and subsequent Amendments 1, 2, 3, and 4.
BACKGROUND
Lodi Southern Plume Activities
Previous investigations in the LSP, which is defined as the area bounded by Park Street to the
north, Village and Maxwell Streets to the south, and by Stockton Street and School Street to the
east and west, respectively, have indicated the presence of tetrachloroethylene (PCE) and other
volatile organic compounds (VOCs) including trichloroethene (TCE) in the groundwater beneath
the LSP area that may be a result of historical and current industrial activities that occurred along
the Sacramento Street corridor. Groundwater monitoring and sampling data collected from the
LSP monitoring wells, which are presently monitored and sampled as part of the Water Board
Order No. R5-2018-0800 that was issued on January 11, 2018, have indicated the presence of
PCE in several LSP monitoring wells with increasing PCE concentrations observed in LSP well
OS -2, which is located in the parking lot of a cul-de-sac on the southernmost tip of Sacramento
Street.
CHT, on behalf of the City and as per the request of the Water Board, conducted passive soil
gas (PSG) sampling in .luly and December 2020 and February 2021 beneath the cul-de-sac to
evaluate the location of a potential unknown source/s of PCE/TCE that may be contributing to
the increasing PCE concentrations in LSP well OS -2. The cul-de-sac is located on the
southernmost tip of Sacramento Street and comprised of seven land parcels located at the
following addresses — 1320, 1324, 1325, 1328, 1332, 1339, and 1345 Sacramento Street. With
the exception of the 1339 Sacramento Street parcel, which currently appears to be occupied by
several trailers, Vanderlans & Sons owns the other six parcels where it manufactures the
LANSASO line of pipe plugs. Additionally, the cul-de-sac also is the location of a City's
industrial waste pump station which acts as a discharge point for industrial waste collected from
175 N. EL MONTH, .AVE— LOS ALMS, CA 94022 TEL:415-424-30U)
Proposal for Providing Consulting and Project Management Services for Lodi Southern Plume Page 2
Mass Removal Event(MRE) Activities, Groundwater Modeling, and City -Wide Plume Management
October 20, 2021
the Sacramento Street corridor industrial units before it is pumped to the City's waste water
treatment plant (WWTP).
The results of the PSG sampling indicated the presence of PCE and TCE in soil vapor beneath
the cul-de-sac at concentrations that were two to three orders of magnitude greater than the San
Francisco Bay Region Environmental Screening Levels (ESLs) of 67 µg/m3 for PCE and
100 µg/m3 for TCE for commercial/industrial scenarios. The highest concentration of PCE and
TCE in soil vapor were observed in an area south of the City's pump station.
The Water Board in their July 21, 2021 Review of Additional Passive Soil Gas Sampling for the
LSP concluded that source of the high concentrations of PCE and TCE in soil vapor may be from
spills or leaks at the City's industrial waste pnpstation and historical manufacturing operations in
that area, and the soil contamination in deeper soil may be acting as a significant source to
groundwater. The Water Board also stated the LSP site is unlikely to be eligible for closure if
remediation of soil vapors that are significantly greater that the ESLs is not conducted, and
requested the City to prepare a work plan for performing additional investigation and
remediation of the PCE and TCE in the soil vapors that are above the ESLs in the vicinity of the
existing industrial waste pump station in the cul-de-sac.
Lodi ri odeli►►t Acirvit►es
The City of Lodi transient groundwater and contaminant transport model (Model) has previously
been applied to design the Lodi Central Plume Source Area (CPSA) groundwater remediation
system and the Lodi Central Plume (LCP) mid -plume groundwater extraction and treatment
(GWET) system, identify the locations and depths for the Lodi Northern Plume (LN?), LSP, and
Lodi Western Plume (LWP) nested monitoring well network, optimization of the City supply
wells, evaluation of the City Water Budget for use in SGMA, and identify groundwater
monitoring wells that could be removed from the sampling and monitoring program. The Model
was last updated in 2016 while evaluating the Water Budget for the City GSA as part of SGMA
activities.
Since the last update of the Model, the City has performed the following activities that directly
impact the migration of the Lodi Plumes —
• Modifed pumping schedule dare to increased surface water supplies 2016-2020.
• Installed Lodi Central Plume (LCP) mid plume extraction well EW -7R as part of the
cleanup efforts in the LCP mid plume area; and,
• Decommissioned the Ladi Central Plume Source Area (CASA) groundwater extraction
and treatment (GPVET) and soil vapor extraction (SVE) systems.
Results from the recent groundwater monitoring and sampling of the Lodi Plumes monitoring
wells, which are presently monitored and sampled as part of the Water Board Order No. 85-
2018-0800 that was issued on January 11, 2018, have indicated the following —
• The lateral and vertical extent of the Lodi Plumes has changed since the Model was last
updated; and,
• City supply well 6R is showing an increasing trend in its PCE and "TCE concentrations.
175 N. LA, MONTE AVE_ LOSALAOS, CA 941122 rl..l.:415-424-311119
Proposal for Providing Consulting and Project Management Services for Lodi Southern Plume Page 3
Mass Removal Event (MRE) Activities, Groundwater Modeling, and City -Wide Plume Management
October 20, 2021
Additionally, the City is currently in the process of assessing and modifying the current sampling
and monitoring program to further reduce the number of Lodi Plumes monitoring wells that are
monitored and sampled as part of Water Board Order No. R5-2018-0800.
011 -call Cit -f ide Piume Mana cIltent Seruieev
The current contract for City -Wide Plume Management Services was initially awarded in the
May 6, 2019 Professional Services Agreement (PSA) and subsequently amended three times with
Amendment No. 2 on February 18, 2020, Amendment No. 3 on July 11, 2020, and Amendment
No. 4 on March 18, 2021. These amendments were to fund ongoing environmental consulting
services to the City on the Lodi Plumes that are not currently covered by active Task Orders.
A generalized description of the scope of services to be completed for Amendment No. S is
provided below.
Task 7 — Lodi Southern Plume Remediation Activities
The Water Board has requested the City to prepare a work plan for additional investigation
and/or remediation of the PCE and TCE in the soil vapors that are above the ESLs in the
vicinity of the existing industrial waste pump station in the cul-de-sac located on the
southernmost tip of Sacramento Street within the LSP area. As part of the City's approach,
CHT recommends performing a mass removal event (MRE) using mobile soil vapor extraction
(SVE) system for remediating the cul-de-sac area. As part of the LSP MRE activities, CHT
will perform the following —
• Determine the vertical extent of the PCE and TCE in soil vapor at the two locations
south of the City industrial pump station where the highest PCE and TCE
concentrations were observed during the LSP PSG sampling events. Figure 1 provides
the location of the proposed soil vapor sampling points;
• Design the components of the SVE MRE, including the location and design of the
proposed SVE wells and the relevant size of the mobile skid -mounted SVE unit;
• Perform SVE MRE activities; and,
• Prepare a final report documenting the results of the SVE MRE activities and submit it
to the Water Board
Tavk 7u -Sod Yurx►r Samplirt:=
Prior to performing an MRE, the vertical extent of the PCE and TCE in soil vapor needs to be
determined so that the components of the proposed soil vapor extraction (SVE) MRE can be
designed optimally. CHT proposes to perform the following activities under Task 7a —
Prepare a Work Plan that identifies our approach and methodology for performing the
SVE MRE activities and submit it to the Water Board for its approval;
• Prepare a site-specific Health and Safety Plan for the SVE MRE activities;
• Obtain the requisite permits from the City and the San Joaquin Department of
Environmental Health (SJDEH) including encroachment and boring log permits to
perform the soil vapor sampling;
• Perform an Underground Utility Survey;
175 N. LI. VIONTE AVE., LOS .ALTOS, CA 94022 'mi,41.5-4Z4-3009
Proposal for Providing Consulting and Project Management Services for Lodi Southern Plume Page 4
Mass Removal Event (MRE) Activities, Groundwater Modeling, and City -Wide Plume Management
October 20, 202 i
■ Provide oversight during installation of the temporary soil vapor sampling points;
• Estimate the vertical extent of the PCE and TCE in soil vapor by performing discrete
depth soil vapor sampling at the two locations where the highest PCE and TCE
concentrations were observed during the LSP PSG sampling events. This activity will
involve collecting soil vapor samples at discrete depths in 1 -liter Summarm canisters as
per the procedures of the DTSC's Advisory — Active Soil Gas Investigations and
submitting it to a California -certified laboratory for testing by EPA method TO -15
analysis for VOCs and the leak detection compound; and,
• Prepare a letter report that summarizes the results of the soil vapor sampling and provides
a design of the proposed SVE wells, and submit it to the City for review and comments.
CHT will then incorporate the comments of the City and submit the finalized letter report
to the Water Board.
T4.0 7b — ln.stulleition ufthe SVE, Wella for the KRE
Following completion of Task 7a activities, CHT will install the SVE wells for performing the
MRE. CHT proposes to perform the following activities under Task 7b —
• Obtain the requisite well installation permits from the San Joaquin Department of
Environmental Health (SJDEH) to install the SVE wells;
■ Provide project management and oversight during drilling and installation of the SVE
wells and SVE observation/monitoring wells, if necessary;
• Prepare a letter report that summarizes the installation of the SVE wells, and submit it to
the City for review and comments. CHT will then incorporate the comments of the City
and submit the finalized letter report to the Water Board.
thlr :Letter ..
Task 7c — Mass Removal Event
Following completion of Task 7a and 7b activities, a SVE MRE will be performed for an initial'
period of 5 days using a mobile skid -mounted SVE unit, where soil vapor and mass removal data
will be collected to monitor the effectiveness of the MRE. If the initial 5 -day MRE operation
results in favorable VOC mass removal rates, the MRE operation may be extended to
expeditiously reduce concentrations of VOCs for a period of 30 days. CHT proposes to perform
the following activities under Task 7c —
• Prepare a Work Plan for performing the SVE MRE and submit it to the Water Board for
approval;
• Obtain the requisite permit from the San Joaquin Valley Air Pollution Control District to
operate the mobile SVE system;
• Perform the SVE; MRE using a mobile SVF, unit from klaku Industries, Ltd.; and,
175 V, LL NTON rL wr:,, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Southern Plume Page 5
Mass Removal Event (MRE) Activities, Groundwater Modeling, and City -Wide Plume Management
October 20, 2021
• Collect performance data including vapor flow rates, vacuum pressure at the SVE wells,
concentrations in the extracted soil vapor, barometric pressure, ambient air temperature,
and all other relevant parameters
Following completion of the MIRE, CHT will prepare a Results of SVE MRE Report (Report) that
will document the methodologies used to collect and analyze the data associated with the SVE
MRE activities. As part of this Task, CHT will perform the following:
• Prepare a Draft Report to the City for review and comment;
■ Meet with the City to discuss the Draft Report; and,
• Prepare and submit a Final Report to the Water Board.
We assume the City will provide one round of comments on the Draft Report and that the Final
Report will be submitted by CHT to the Water Board on the City's behalf.
Costs related to Task 7c include the rental of'the MAKO SVE mobile unit for a period of'30 days.
Tt7sk'ToT?elTvornksles;'D?l�`ftR 6i+l:tofilte (ty r itd Mniti MRl3 RA ort to the Water Board �
Task 8 — Groitr>:dwater Modelin
As requested by the City, CHT will update the City of Lodi transient groundwater flow and
contaminant transport model (Model) to current conditions. The Model will also be modified to
include the City's revised supply well pumping schedule The updated Model will be applied to
perform the following activities —
• Simulate the lateral and vertical extent of the Lodi Plumes. Current data suggests that
PCE concentrations in City supply well 6R have increased. The Model will evaluate the
migration of the Lodi Plumes to see how it could be impacting the City supply wells.
• Evaluate the efficacy of the LCP mid -plume GWET system in remediating the high PCE
concentration (>500 µg/l) areas of the LCP, and estimate the length of time required to
remediate the remnants of the high PCE concentration areas; and,
■ Assess and modify the sampling and monitoring program to further reduce the number
of Lodi Plumes monitoring wells that are monitored and sampled as pall of Water Board
Order No. R5-2018-0800.
The groundwater model will be updated using the graphical interface modeling platform
Groundwater Modeling System (GMST"t). The groundwater flow simulations will be
performed using the latest version of the U.S. Geological Survey modular finite -difference
groundwater flow code MODFLOW. The latest version of the MT3D code will be used to
simulate the migration of the VOC plumes, The Model will be updated as follows —
• Additional lithologic data and current water quality datasets will be incorporated into the
Model to update current conditions, and recalibrate the migration of the Lodi Plumes;
• Current extraction rates from the City supply wells will be simulated to determine their
impacts on the migration of the VOC plumes; and,
■ Current extraction rates from the LCP mid -plume extraction well will be incorporated
175 N. EL IIONTE AVE., LOS ALTOS, CA 94022 TEL: 4[i-424-31109
Proposal for Providing Consulting and Project Management Services for Lodi Southern Plume Page 6
Mass Removal Event (MRE) Activities, Groundwater Modeling, and City -Wide Plume Management
October 20, 2021
A technical memorandum will be prepared summarizing the results of the modeling activities.
Following completion of all the modeling activities, a meeting will be conducted with the City
staff to discuss and present the results.
I'ask 8 Qe!' An gpdate. Mad@l!and a T~ +iio +ilr�.ol
the groundwater modeling aotivltzes.
Task 4 — On-call ('unsultinw Services for ('itv-Wide flume mana2crnent
This Task will allow CHT to continue providing environmental consulting services to the City on
the several groundwater contaminant plumes that are currently in monitoring and cleanup phases,
and to address issues that arise and are not currently covered by active Task Orders.
Historically, this Task has provided a mechanism for CHT to continue to support as well as
provide the City staff input related to the management of these groundwater plumes. Past work
included, writing work plans, investigative sampling and reporting, meetings with the City and
Water Board, presentations to the Water Board, and responding to the Water Board review and
comments to our ongoing plume management tasks. Our labor hours would be detailed on
monthly invoices for this Task. The City requests that an additional $35,000 be authorized to
ensure adequate funding for on-going and future requirements of the Water Board.
ESTIMATED FEE
CHT proposes to perform the work on a time -and -expense basis in accordance with the terms of
our City of Lodi Professional Services Agreement. We will not exceed our estimated fee
without your prior written authorization. A summary of estimated cost by Tasks is provided in
Table 1 below. The attached Estimated Budget table provides a breakup of the costs for
completing the different subtasks under Task 1.
TABLE 1. ESTIMATED FEE
7a
Lodi Southern Plume (LSP) — Soil Vapor Sampling
$
46,500
7b
Lodi Southern Plume (LSP) — SVE Well installation for
$
31,000
'
MRE
Lodi Southern Plume (LSP) SVE MRE
7c
$
76,000
8
Update Lodi Groundwater Model & Simulate VOC Plume
$
20,000
Migration
9
Provide On-call Environmental Consulting Services for
$
35,000
City -Wide Plume Management
TOTAL
$ 208,500
175 N. CL VIOLATE AVE., LOS ALTOS, CA 94022 'rEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Southern Plume Page 7
Mass Removal Event (MRS) Activities, Groundwater Modeling, and City -Wide Plume Management
October 20, 2021
SCHEDULE
Work will commence immediately upon receipt of your written authorization. CHT looks
forward to assisting the City on this project, and anticipates completing the proposed scope of
services within approximately six months. Please do not hesitate to contact Varinder Oberoi at
(415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech
Varinder Oberoi, PE (C69037)
Principal Hydrologist
175 N. EL VIONTE AVE,, LOS ALTOS, CA 94022 TEL: 415-424-30419
-Ow- —•�_
r
a�
^
N
U
N
O
N
T
O
T
8'
.sz
C
a
rz 25
c�p
CD
E
p
r
N N
uj
O
ao
w
w U
o
CL
N
C
U
)�
W
> M
z
0
a.$
�a
r-
a.
aE
o�
H
fp
r
a
�_
8
�,RD
■r
�
` ■
t0 • � M
T N
C
x
m
O
IP
a
N LU
d
�
r
U
v '9
N
$
�
>
a>
Or�
v i2n
LU
p >
a` -6
,,
c
r
E
E
w
*� �IIL
■
U)
C/)
LO
-Ow- —•�_
0
r
a�
^
N
U
N
O
N
T
O
T
8'
.sz
N
•
�r
`" T
CD
E
r
m
(n
+e
U
a
W
o
CL
N
C
U
)�
r
—
U)
U
w
d
0
y
N
M
0-
�a
r-
a.
In
O
cc
O
fp
r
M
a �,
�
N
■r
�
` ■
t0 • � M
T N
C
O
O
O
IP
a
d
�
�
r
U
(D
�O
J
N Ir.
Or�
LU
■
U
,,
c
r
E
E
*� �IIL
■
U)
C/)
LO
■
•�1♦ 2
■
,
o'
cUn
cUn
U)
T
r
a_
0-
uI
ui
�pM1
CV N
N co
-
0 40T
r
a
cp
�
e7 N
C4
r
T�
0
r
a�
^
N
U
N
O
N
T
O
T
8'
.sz
N
E
�
CD
E
r
m
(n
c
C
U
a
W
o
CL
N
C
U
)�
r
—
U)
U
w
d
0
y
N
M
0-
`p
a
a.
In
O
cc
O
fp
r
M
r
o
^
N
N
O
N
N
C)
L
N
N
�
�
N
a
W
o
7(D
D
~
�
N
Y
0
�
v
0
v
fA
V
m
C
O
O
O
O
a
d
�
o
U
U
(D
�O
J
J
E
LU
n
U
c
E
E
E
L
U)
C/)
LO
o'
cUn
cUn
U)
a
a_
0-
uI
ui
o�
a
r
UJ
N
o
W
L
LL
cl
a
W
o
D
~
�
N
Y
0
�
fA
V
m
Z
a
m
o
■a w
a
a
�
o
Z
J
aU.
O
cn
LU
n
U
Exhibit 2
CIVIL UYUUC TECH
G:vzG/ Eh viror�+ricc� {uG/ Wa4ltr Rrsocwaa/ Dow Ole, i g
December 22, 2022
Mr. Charlie Swimley
Public Works Director
City of Lodi
221 West Pine Street
Lodi CA 95240
SENT VIA: EMAIL
SUBJECT: Reguest for Approval o Amendment No. 6
Proposal for Providing Consulting and Project Management Services for Lodi
Central Plume Area (LCPA), Groundwater Monitoring Well Abandonment ,
Sustainable Groundwater Management Act (SGMA), and City -Wide Plume
Management Activities
City of Lodi, California
Dear Mr. Swimley:
At the request of the City of Lodi (City), Civil Hydro Tech, LLC (CHT) submits this proposal for
providing Consulting And Project Management Services for the Lodi Central Plume Area (LCPA),
Groundwater Monitoring Well Abandonment, Sustainable Groundwater Management Act
(SGMM), and City -Wide Plume Management Activities. This Amendment No. 6 is a continuation
of ongoing consulting services for the Lodi Central, Western, Southern, and Northern Plumes
(Lodi Plumes) provided by CHT as part of the May 6, 2019 Professional Services Agreement
(PSA) between the City and CHT and subsequent Amendments 1, 2, 3, 4 and S.
BACKGROUND
Lodi Central Plume Area Activities
The Lodi Central Plume Area (LCPA) is defined as the area bounded by Elm Street and Kettleman
Lane to the north and south, respectively, and by Cherokee Lane and Hutchins Street to the east
and west, respectively. The LCPA comprises of the CPSA, areas downgradient of the CPSA that
include sensitive receptors like schools and churches, and the mid -plume area. Previous
investigations have indicated the presence of tetrachloroethylene (PCE), trichloroethene (TCE),
and other volatile organic compounds (VOCs) in the soil and groundwater beneath the LCPA.
Remedial activities were undertaken in the LCPA including soil removal activities in the CPSA,
operation of the CPSA groundwater extraction and treatment (GWET) and soil vapor extraction
(SVE) systems between 2011 and 2019 to mitigate and remediate soil and groundwater beneath
the CPSA, and operation of the mid -plume GWET system since August 2018 to mitigate and
remediate groundwater PCE concentrations of 500 micrograms per liter (µg/L) and greater in the
Upper Intermediate Zone of the LCP mid -plume area.
As part of its ongoing evaluation of the Lodi Plumes, the City continues to perform semi-annual
groundwater monitoring, sampling, and reporting of the Lodi Plumes in accordance with the
California Regional Water Quality Control Board, Central Valley Region (Water Board)
Monitoring and Reporting Program (MRP) No. R5-2018-0800 that was issued on January 11, 2018.
The MRP complies with Required Actions Number 17 and 18 of the Water Board Cleanup and
Abatement Order Number R5-2004-0043, which were adopted on April 22, 2004.
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 2
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
Operation of the CPSA GWET and SVE systems, which commenced in 2011, resulted in a
significant reduction in PCE and other VOC concentrations in the subsurface soil and soil vapor,
and groundwater beneath the CPSA. In CRT's May 12, 2020 Central Plume Source Area
Groundwater Extraction and Soil Vapor Extraction Systems Closure Report, the City
recommended decommissioning and removal of the CPSA GWET and SVE systems, including
abandoning/removal of all groundwater extraction and SVE and monitoring wells and piping, and
excavating soil containing elevated HVOCs along the sewer line in the alleyway. The City's
request was approved by the California Regional Water Quality Control Board, Central Valley
Region (Water Board) in their May 18, 2020 review letter to Andrew Richle.
Between April and July 2021, the City, with the Water Board's approval, decommissioned the
CPSA GWET and SVE systems. Additionally, the City also excavated a portion of the alleyway
near Pleasant Avenue, where passive soil gas (PSG) sampling had indicated high concentrations
of PCE in soil vapor. As part of the post -closure activities, the City performed the first round of
the semi-annual indoor and ambient air monitoring using sorbent tubes in February 2022 to verify
if the remedial actions adopted as part of the CPSA GWET and SVE system decommissioning
activities were effective in reducing impacts to the indoor air quality of the residential and
commercial properties within the CPSA. The results from the sampling event indicated that
concentrations of PCE in indoor air that exceeded PCE Environment Screening Level (ESL) value
were limited to a few locations within the Site - the residence located at 18 South Pleasant Avenue
and the commercial property located at 212 W. Pine Street. Verification samples were then
performed using Summa cannisters in March 2022 at the 212 W. Pine Street property. However,
the City was denied access for verification sampling by the 18 S. Pleasant Avenue property owner.
In October 2022, the City performed the second round of indoor air sampling at all locations that
were sampled in February 2022, with the exception of the residence located at 18 S. Pleasant
avenue. The results of the October sampling event indicated that only the 212 W. Pine Street
property continued to show PCE in indoor air exceeding the indoor air PCE ESL values.
As part of the closure activities, the City had also proposed that if indoor air monitoring indicated
increased PCE concentrations due to remaining soil or soil vapor contamination, the City would
perform additional investigative activities using passive soil gas (PSG) samplers and other
sampling methods to pinpoint the areas) of impacts, and targeted remediation, if necessary, to
address the area(s) of impacts.
On-call SGMA Con s ultin - S erviees
The City has formed a groundwater sustainability agency (GSA) that would allow it to develop
strategies to manage their own groundwater, including gathering groundwater data, monitoring
water usage, regulating wells, and imposing water usage fines, among other duties related to the
implementation of the Sustainable Groundwater Management Act (SGMA). CHT has continued
to provide consulting services to the City to address issues pertaining to the implementation of
SGMA. The current contract for SGMA Consulting Services was initially awarded in the
May 6, 2019 Professional Services Agreement (PSA).
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 3
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
On-call City -Wide Plume Matta ement Services
The current contract for City -Wide Plume Management Services was initially awarded in the
May 6, 2019 Professional Services Agreement (PSA) and subsequently amended four times with
Amendment No. 2 on February 18, 2020, Amendment No. 3 on July 11, 2020, Amendment No. 4
on March 18, 2021, and Amendment No. 5 on November 8, 2021. These amendments were to fund
ongoing environmental consulting services to the City on the Lodi Plumes that are not currently
covered by active Task Orders.
A generalized description of the scope of services to be completed for Amendment No. 6 is
provided below
TASK 10 — LODI CENTRAL PLUME AREA ACTIVITIES
As part of the post -closure activities associated with the decommissioning of the CPSA GWET
and SVE treatment systems, the City performed indoor air sampling in February and
October 2022 at several locations within and downgradient of the CPSA. All locations that were
sampled in February 2022 were also sampled in October 2022, with the exception of the residence
located at 18 S. Pleasant Avenue where the City was denied access after the February 2022
sampling event. Results of the February and October 2022 indoor air sampling events indicated
that PCE concentrations in indoor air that exceeded PCE ESL values were limited to a few
locations in the CPSA — the residence located at 18 South Pleasant Avenue and the commercial
property located at 212 W. Pine Street. In accordance with the recommendations for the CPSA
GWET and SVE systems decommissioning post -closure activities, CHT proposes to perform
additional investigative activities described below to determine the extent of PCE in soil vapor
beneath the 212 W. Pine Street property and the extent of PCE in soil vapor outside of the
18 S. Pleasant Avenue residence —
• Determine the vertical extent of the PCE and TCE in soil vapor at the two locations along
the sewer lateral from the 212 W. Pine Street property;
• Additional indoor air sampling within the 212 W. Pine Street building;
• Installation and sampling of permanent sub -slab vapor pins beneath the 212 W. Pine
Street building slab to measure the sub -slab PCE and TCE concentrations. These
concentrations will then be used in our feasibility evaluation of mitigation and treatment
alternatives, if necessary;
• Feasibility evaluation of treatment alternatives for 212 W. Pine Street;
■ As part of verification sampling and the request from the Water Board, installation of
passive soil gas (PSG) samplers surrounding the excavation that was performed in the
alleyway during CPSA GWET and SVE system decommissioning activities. These PSG
samplers will also be used to evaluate the extent of the remnants of PCE in soil vapor, if
any, outside the 18 S. Pleasant Avenue residence;
• Closure evaluation of the LCP mid -plume GWET system; and,
• Prepare reports documenting the results of the CSPA and the LCP mid -plume area
activities and submit it to the Water Board
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 4
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
Tusk I0 a — CPSA Sail Va or Indoor Air Saab -slab and PSG Sam lin
Prior to feasibility evaluation of mitigation and treatment options, if necessary, the extent of the
remnants of the PCE and TCE in soil vapor beneath the 212 W. Pine Street building and outside
the 18 S. Pleasant Avenue needs to be evaluated. CHT proposes to perform the following
activities under Task 7a —
• Prepare a Work Plan that identifies our approach and methodology for performing the
activities stated in this subtask and submit it to the Water Board for its approval;
• Prepare a site-specific Health and Safety Plan for the field activities;
• Perform an Underground Utility Survey;
• Obtain the requisite permits from the City and the San Joaquin Department of
Environmental Health (SJDEH) including encroachment and boring log permits to perform
the discrete depth soil vapor sampling;
• Install five (5) PSG samplers surrounding the excavation that was performed in the
alleyway during CPSA GWET and SVE system decommissioning activities and outside
the 18 S. Pleasant Avenue residence;
• Perform indoor air sampling at five (5) additional locations / rooms within the 212 W. Pine
Street building using sorbent tubes;
• Estimate the vertical extent of the PCE and TCE in soil vapor by performing discrete depth
soil vapor sampling at two locations along the sewer line emanating from the 212 W. Pine
Street property. This activity will involve collecting soil vapor samples at discrete depths
in 1 -liter SummaTM canisters as per the procedures of the DTSC's Advisory — Active Soil
Gas Investigations and submitting it to a California -certified laboratory for testing by EPA
method TO -15 analysis for VOCs and the leak detection compound;
• Install five (5) sub -slab soil vapor pins / probes beneath the slab of the 212 W. Pine Street
property to determine the lateral extent of PCE in soil vapor beneath the building;
• Provide oversight during above mentioned field activities; and,
• Prepare a letter report that summarizes the results of all the activities and submit it to the
City for review and comments. CHT will then incorporate the comments of the City and
submit the finalized letter report to the Water Board.
'Task 10a Deliverables: to %%`t[Tcr r;:I,e rt to the � ::ter- 1)oarJ
doc„ritTrri r_- i],c roF,iili: nfttIi il; activities
Subcontractor costs associated with this Task include the following —
• Driller costs (assumed 6 days of field work) associated with performing discrete depth
sampling at two (2) temporary locations and installing six (6) sub -slab vapor pins ;
■ Laboratory costs related to analyzing five (5) indoor air, ten (10) discrete depth soil vapor,
one sewer sample, six (6) sub -slab soil vapor, five (5) PSG samples, and six (6) soil samples
using TerraCore samplers for VOCs;
Disposal of waste related to drilling and soil vapor pin installation activities (assumed 3
drums for disposal to a non -hazardous Class III facility);
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 5
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
• Private utility locator and well permitting costs; and,
• Rental of air monitoring equipment
Task IOh — Feasibility Evaluation o 'TreatmentAlternatives i)r 212 W Pine Street
Following completion of Task 10a, CHT proposes to perform a feasibility evaluation of
alternatives such as installation of a passive or active sub -slab depressurization system, installing
shallow SVE wells, and targeted soil excavation in the areas that exhibit remnants of PCE in soil.
As part of this Task, CHT will perform the following activities:
• A feasibility evaluation of alternatives;
• Prepare a Technical Memorandum summarizing our evaluation and recommendations
for the selected alternative;
• Meet with the City to discuss our recommendation for the selected alternative; and,
• Prepare a letter report to the Water Board to recommend our selected alternative to
obtain closure of the LCP SVE system.
We have assumed that the City would provide one round of comments on the draft report and
that the final letter report will be submitted to the Water Board on the City's behalf
Task l Ob Deliverables: Meeting with the City to discuss the recommended alternative and letter
report to the Water Board.
Task IOc — LCP Afid-Plume GWET System Closure Evaluation
Operation of the LCP mid -plume GWET system, which commenced in August 2018, has resulted
in extracting approximately 14,371,815 gallons of groundwater and removing approximately
34.36 pounds (lbs) of PCE mass from groundwater beneath the mid -plume area. However, the
monthly PCE mass removal rates and the influent PCE concentrations have decreased significantly
since the start of system operations. Results of the semi-annual groundwater monitoring and
sampling of the Lodi Plumes have also indicated that the extent of PCE groundwater plume with
concentrations of 500 µg/L and greater in the Upper Intermediate Zone of the LCP mid -plume area
has decreased significantly. As part of this subtask, CHT proposes to evaluate if the LCP mid -
plume GWET system is eligible for closure.
Task I Oc Deliverables: Meeting with the City to discuss CHT's evaluation for closure.
TASK 11 — PROJECT MANAGEMENT — GROUNDWATER MONITORING WELL
ABANDONMENT ACTIVITIES
As part of our ongoing activities associate with the management of the Lodi Plumes, CHT is
currently in the process of preparing a revised groundwater monitoring and sampling plan (Plan)
that will recommend decreasing the frequency of monitoring and sampling of Lodi Plumes
groundwater monitoring wells. The revised Plan will be submitted to the Water Board for approval
prior to the March 2023 groundwater monitoring and sampling event. Following the Water Board
approval of the Plan, CHT will prepare a Work Plan that will recommend abandonment of all the
wells that are no longer in the monitoring schedule and submit it to the Water Board for its
649 DIS"CEL DRIVE, LOS ALTOS, CA 94022 TEL: 41i-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 6
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
approval. Additionally, several groundwater monitoring wells within the Lodi Plumes have shown
a significant decrease in their PCE and other VOC concentrations to below their maximum
contaminant levels (MCLs).
CHT proposes to perform the following activities under Task 11 —
■ Prepare a work plan for abandonment of groundwater monitoring wells either by over-
drilling or pressure grouting, depending on the direction of the San Joaquin Department of
Environmental Health (SJDEH), and submit it to the Water Board for approval;
• Prepare a Site and Task -specific Health and Safety Plan;
• Perform air monitoring during well abandonment activities;
• Provide project management and oversight during abandonment, either by over-drilling or
pressure grouting, of the groundwater monitoring wells;
• Preparation of well destruction reports for San Joaquin County ;
• Abandonment of approximately 20 groundwater monitoring wells; and,
■ Prepare a final report and submit it to the Water Board.
k i 1 bc!iti. 1-rjI's ics: W01-!•1- Plan To diQ '%Vlatcr L'c rd, Well Destruction 1'crii3it AppIicat iun . .ind
%�I,,,rt d(- ciiTiic»lin�� ylvcII abandonment activities to tho \',later Board
Subcontractor costs associated with this Task include the following —
• Costs for a private utility locator;
• Air monitoring equipment rental;
■ Driller costs at prevailing wages (21 work days) associated with abandoning a total of 20
groundwater monitoring wells (14 shallow, 4 intermediate, and 2 deep zone wells) by
method of over drilling using hollow stem augers and sonic drilling for one deep well;
• Laboratory analysis costs;
• Disposal costs for waste generated during well abandonment activities (assumed 80 drums
for disposal to a non -hazardous Class III facility); and,
• Well permitting costs
TASK 12 — PROVIDE ON-CALL SGMA CONSULTING SERVICES
The City has formed a groundwater sustainability agency (GSA) that allows it to develop strategies
to manage their own groundwater, including gathering groundwater data, monitoring water usage,
regulating wells, and imposing water usage fines, among other duties related to the implementation
of the Sustainable Groundwater Management Act (SGMA). The City GSA is part of the public
entity known as Eastern San Joaquin Groundwater Authority (Authority) that will coordinate the
various GSAs' management of the San Joaquin Valley Groundwater Basin, Eastern San Joaquin
Sub -basin, California Department of Water Resources Basin No. 5-22.01, as part of SGMA.
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 7
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
As part of this Task, CHT will continue to provide consulting services to the City to address issues
pertaining to the implementation of SGMA, including providing input to the City regarding review
of SGMA related requests from the Authority, review and comment on SGMA documents, review
and comment on the California Department of Water Resources (DWR) Urban Residential
Landscape Area Measurement (LAM) project, and attendance at the meetings as the City's
representative. This Task will provide a mechanism for CHT to continue on-going and future
support to the City for SGMA related activities.
TASK 13 — PROVIDE ON-CALL ENVIRONMENTAL CONSULTING SERVICES FOR
CITY-WIDE PLUME MANAGEMENT
This Task will allow CHT to continue providing environmental consulting services to the City on
the several groundwater contaminant plumes that are currently in monitoring and cleanup phases,
and to address issues that arise and are not currently covered by active Task Orders.
Historically, this Task has provided a mechanism for CHT to continue to support as well as provide
the City staff input related to the management of these groundwater plumes. Past work included,
writing work plans, investigative sampling and reporting, meetings with the City and Water Board,
presentations to the Water Board, and responding to the Water Board review and comments to our
ongoing plume management tasks. Our labor hours would be detailed on monthly invoices for this
Task. CHT requests that an additional $35,000 be authorized to ensure adequate funding for on-
going and future requirements of the Water Board.
ESTIMATED FEE
CHT proposes to perform the work on a time -and -expense basis in accordance with the terms of
our City of Lodi Professional Services Agreement. We will not exceed our estimated fee without
your prior written authorization. A summary of estimated fee is provided in Table 1 below.
TABLE 1. ESTIMATED FEE
TASK
DESCRIPTION
ESTIMATED
FEE
10a
LCP CPSA — Soil Vapor, Indoor Air, Sub -slab, and PSG
$ 74,500
Sampling
10b
Feasibility Evaluation of Treatment Alternatives for
$ 24,000
212 W. Pine Street
l Oc
LCP Mid -Plume GWET System Closure Evaluation
$ 13,000
11
Project Management — Groundwater Monitoring Well
$ 334,100
Abandonment Activities
12
Provide On-call SGMA Consulting Services
$ 20,000
13
Provide On-call Environmental Consulting Services for
$ 35,000
City -Wide Plume Management
TOTAL
$ 500,600
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Proposal for Providing Consulting and Project Management Services for Lodi Central Plume Page 8
Area (LCPA) et.al. — Amendment No. 6
December 22, 2022
SCHEDULE
Work will commence immediately upon receipt of your written authorization. CHT looks forward
to assisting the City on this project, and anticipates completing the proposed scope of services
within approximately twelve months. Please do not hesitate to contact Varinder Oberoi at
(415) 424-3009 with any questions regarding this proposal.
Sincerely,
Civil Hydro Tech
Varinder Oberoi, PE (RCE #C69037)
Principal Hydrologist
649 DISTEL DRIVE, LOS ALTOS, CA 94022 TEL: 415-424-3009
Capital Improvement Plan
FY 2022-2023
Project Title: PCE/TCE Plume Management
I Munis Project Code:
CIP List Proj #
Section I: Description
District Nos:
Project Length
Priority
Amendment 6 to the Civil Hydro Task contract for consulting and project management services
for Central Plume, monitoring well abandonment, SGMA and Citywide plume
management
Justification/factor driving project
Additional Information
Section II: Estimated Proje
Expenditure Prior Years FY 21122
FY 22/23 FY 23124
FY 24125 FY 25126 FY 26127
Future Yrs
Total
Estimate
Budget
Contracts $ -
$
500,600
$
500,600
Total Capital Costs $ - $ -
$
500,600 $ -
$ - $ - $ -
$ - $
500,600
Section III: Funding Sourc(
Funding Source(s) Prior Years FY 21/22
FY 22/23 FY 23/24
FY 24/25 FY 25/26 FY 26/27
Future Yrs
Total
Estimate
Budget
590 - Central Plume $ -
$
111,500
$
111,500
565 - PCE Rate Abatement $ -
$
369,100
$
369,100
560 - Water Fund $ -
$
20,000
$
20,000
$ -
$
-
Total Project Financing I $ - $ -
$
500,600 $ -
$ - $ - $ -
$ - $
500,600
RESOLUTION NO. 2023-14
A RESOLUTION OF THE LODI CITY COUNCIL AUTHORIZING THE
CITY MANAGER TO EXECUTE AMENDMENT NO. 6 TO THE PROFESSIONAL
SERVICES AGREEMENT WITH CIVIL HYDRO TECH, LLC, OF LOS ALTOS, FOR
CONSULTING AND PROJECT MANAGEMENT SERVICES FOR CENTRAL
PLUME AREA, MONITORING WELL ABANDONMENT, SGMA AND CITYWIDE
PLUME MANAGEMENT; AND FURTHER APPROPRIATING FUNDS
WHEREAS, historical practices have resulted in the contamination of groundwater by
tetrachloroethylene (PCE) and trichloroethylene, producing four identified groundwater
contaminant plumes within the City of Lodi; and
WHEREAS, efforts to remove PCE and related contaminants from the Central Plume
Source Area (CPSA), have been ongoing since 2003, utilizing both soil vapor extraction and
groundwater extraction systems; and
WHEREAS, the City, with the assistance of Civil Hydro Tech, LLC, has been working
closely on cleanup activities for the CPSA with the Central Valley Regional Water Quality
Control Board; and
WHEREAS, staff recommends the City Council authorize the City Manager to execute
Amendment No. 6 to the Professional Services Agreement with Civil Hydro Tech, LLC, of
Los Altos, for consulting and project management services for Central Plume Area, Monitoring
Well Abandonment, SGMA and Citywide Plume Management, in the amount of $500,600; and
WHEREAS, staff also recommends the City Council authorize an appropriation of funds
in the amount of $111,500 from the Central Plume Fund (59099000.77020), $369,100 from the
PCE/TCE rates fund (56599000.77020), and $20,000 from Water Administration fund
(56052001.72450).
NOW, THEREFORE, BE IT RESOLVED that the Lodi City Council does hereby
authorize the City Manager to execute Amendment No. 6 to the Professional Services
Agreement with Civil Hydro Tech, LLC., of Los Altos, California, for consulting and project
management services for Central Plume Area, Monitoring Well Abandonment, SGMA and
Citywide Plume Management in the amount of $500,600, for a total contract amount of
$1,331,333; and
BE IT FURTHER RESOLVED, that the Lodi City Council does hereby authorize an
appropriation of funds in the amount of $500,600, as set forth above; and
BE IT FURTHER RESOLVED, pursuant to Section 6.3q of the City Council Protocol
Manual (Res. No. 2019-223), the City Attorney is hereby authorized to make minor revisions to
the above -referenced document(s) that do not alter the compensation or term, and to make
clerical corrections as necessary.
Dated: January 18, 2023
I hereby certify that Resolution No. 2023-14 was passed and adopted by the City
Council of the City of Lodi in a regular meeting held January 18, 2023, by the following vote:
AYES: COUNCIL MEMBERS — Craig, Khan, and Nakanishi
NOES: COUNCIL MEMBERS None
ABSENT: COUNCIL MEMBERS — Bregman and Mayor Hothi
ABSTAIN: COUNCIL MEMBERS — None
OLIVIA NASHED
City Clerk
2023-14