SR 07-12-2022 5G
City Council
Report
City Council Meeting: July 12, 2022
Agenda Item: 5.G
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To: Mayor and City Council
From: Rick Valte, Public Works Director, Public Works, Office of Sustainability & the
Environment
Subject: Approval of First Modification to Agreement #11181 with Montrose
Environmental for additional Operation, Maintenance, and Monitoring of the
Landfill Gas Management System
Recommended Action
Staff recommends that the City Council authorize the City Manager to negotiate and
execute a first modification to agreement #11181 in the amount of $300,000 with ES
Engineering Services DBA Montrose Environmental for the operation, maintenance, and
monitoring of the Landfill Gas Management System for the Public Works Department.
This will result in a five-year amended agreement with a new total amount not to exceed
$1,015,211, with future year funding contingent on Council budget approval.
Summary
The City has continuously operated a landfill gas extraction (LFG) and treatment system
since 1998 to monitor methane levels and to maintain safe environmental conditions for
the nearby Pico Neighborhood residents, Gandara park users, and City staff who work
at the Municipal Yards. Oversight of the LFG is performed by a licensed independent
contractor, ES Engineering Services DBA Montrose Environmental, who maintains,
operates, and manages the LFG system in strict accordance with permits from the
County of Los Angeles’ Department of Health Services (DHS) and the South Coast Air
Quality Management District (SCAQMD). The permits require routine monitoring and
maintenance of a perimeter probe network, ambient air quality above the landfill, and
control system operation. Compliance reports are submitted to the DHS and SCAQMD
on a quarterly basis. In June of 2021, the City conducted a competitive selection
process and entered into an agreement with ES Engineering Services DBA Montrose
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Environmental for routine maintenance and operation of the LFG system. City staff have
identified additional operational, maintenance, and monitoring needs to keep the LFG
system running efficiently and effectively. This new work is additive to the original scope
of services that was approved by Council in 2021. In order for the City to complete
system enhancement projects, staff is recommending amending the existing agreement
with ES Engineering Services DBA Montrose Environmental.
Discussion
The City has been actively monitoring methane levels at the former landfill site since
1996. California Title 27 regulations for control of LFG adopted in 1997 required an LFG
Control System to be installed to control gases generated by the decomposition of the
landfill material. An interim LFG Control System was installed in 1998 and construction
of a permanent LFG Control System was completed in the fourth quarter of 2000.
The objectives of the LFG Control System are:
• Reduce methane concentrations within the landfill;
• Reduce methane concentrations in native soils surrounding the landfill;
• Reduce methane concentrations in identified utility trenches; and
• Maintain methane concentrations in perimeter subsurface detection probes
outside the landfill below the regulatory action level of five percent methane by
volume or 50,000 parts per million.
Over the past 24 years, the LFG has observed predominantly safe methane levels in all
of the system’s 37 sub-surface probe monitors, including a network of monitoring
probes and gas extraction wells that specifically monitor methane levels adjacent to the
Mountain View Mobile Home Park. This record demonstrates that methane levels – both
underground and in the ambient air environment – are generally below the regulatory
compliance threshold of 5%, with a few isolated exceptions. Overall, the site generates
a low volume of methane. This can be attributed to the landfill being over 50 years old
and to the composition of the waste landfilled, which was predominantly construction
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debris such as concrete blocks, bricks, and wood. Based on the volume and type of
waste in place and the known time the landfill was in operation, landfill modelling
indicates that the landfill’s current ability to generate methane is very low and will
continue to decrease over time due to the low levels of organic materials buried in the
landfill.
Today, landfill gas levels remain relatively stable at the former landfill site; however,
some anomalies have been recorded at a handful of locations within the Municipal
Yards that exhibit temporary increases in methane levels and momentarily exceed the
regulatory threshold. These anomalies are believed to be caused by excess moisture in
the landfill due to above average rainfall, a main water line that leaked into the
subsurface soil, and site construction activities over the past year. Increased moisture
and saturation of organic materials increases the production of methane via
methanogenesis (anaerobic digestion). These temporary increases can be remedied by
adjustments to the LFG mechanical network and/or through expansion of the control
system. Hence, Public Works is proposing to add additional scope to the ES
Engineering Services DBA Montrose Environmental contract beyond the routine
maintenance and monitoring of the LFG system to include the following enhancement
activities:
• Install vertical extraction well LFG-11 and trench including permits, plans, labor,
travel, FID monitoring, all materials and equipment, waste management and final
report;
• Install vertical extraction well LFG-12 and trench including permits, plans, labor,
travel, FID monitoring, all materials and equipment, waste management and final
report;
• Install 25 hp blower & motor including obtaining permits, labor, travel, all
materials and equipment;
• Install a new Alarm Call Out system, upgrade control panel and run new conduit
and wires, install float sensor on entrainment tank and wire high level sensors to
control panel. Includes obtaining permits, labor, travel, all materials and
equipment; and
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• Raise probes PP-5R, PP-14 and header access vault for accessibility.
If approved, Public Works, through ES Engineering Services DBA Montrose
Environmental, would need to prepare and submit applications and obtain permits from
the LACDPH and SCAQMD for the installation of the new wells and all necessary
trenching and piping connections to the original system. In addition, the City would need
to prepare a Workplan and Health & Safety Plan to monitor all construction activities at
the site during installation of the new mechanical equipment.
Past Council Actions
Meeting Date Description
10/26/2021
(attachment A)
Landfill Gas Study Session
7/27/2021
(attachment B)
Original RFP bid and award of agreement with ES
Engineering Services DBA Montrose Environmental for
services related to the operation, maintenance, and
compliance sampling and reporting for the City’s Landfill
Gas Control System
Financial Impacts and Budget Actions
Staff seeks authority to approve funding from the General Fund to increase the amount
of contract with ES Engineering Services DBA Montrose Environmental for services
related to the operation, maintenance, and compliance sampling and reporting for the
City’s Landfill Gas (LFG) Control System. Funds are available in the FY 2022-23 Capital
Improvement Program Budget for this project.
Contract Request
Agreement
#
Current
Authorized
Amount
FY 2022-23
Modification
Request
Amount
Dept/CIP Account #
Total Revised
Contract
Amount
11181 $715,211 01500020.550010 $715,211
11181 $300,000 C0104580.689000 $300,000
$715,211 $300,000 Total $1,015,211
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Prepared By: James Velez-Conway, Senior Sustainability Analyst
Approved
Forwarded to Council
Attachments:
A. 4576 LFG Study Session
B. Executed-ES_Engineering_Contract_Sept_2021.docx
C. Santa Monica LFG Wells & System Upgrades Proposal 20220615
D. ES Engineering Oaks Initiative Form MEG2-signed
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Executive Summary
The City of Santa Monica operated a landfill from 1948 to 1970. The facility was closed
and capped with three to five feet of cover soil in 1970. In order to comply with new
regulatory requirements for landfills, a Landfill Gas Control and Treatment System (LFG
Control System) was installed in 1998 to monitor and control methane and other landfill
gases. This report provides a summary of the inactive landfill site located beneath
Gandara Park and portions of the Municipal City Yards located at 2500 Michigan
Avenue and a description of the LFG Control System, the regulatory requirements, and
recent monitoring results. The LFG Control System has been in continuous operation
since 1998 to monitor methane levels and to maintain safe environmental conditions for
nearby residents, park users, and City staff who work at the Yards. Oversight of the
LFG Control System is performed by a licensed independent contractor, Montrose
Environmental, that maintains, operates, and manages the LFG Control System in strict
accordance with permits from the County of Los Angeles Department of Public Health
(LADPH) and the South Coast Air Quality Management District (SCAQMD). The permits
require routine monitoring and maintenance of a perimeter probe network, LFG
extraction wells, and the LFG Control System. Additionally, the air above the landfill
surface and the interiors of the City Buildings are monitored for LFG. Compliance
reports are submitted to the LADPH and SCAQMD on a quarterly basis.
Over the past 20 years, the LFG monitoring results indicate predominantly safe
methane levels in all of the system’s 37 subsurface LFG detection probes, including a
network of monitoring probes that specifically monitor methane levels adjacent to the
Mountain View Mobile Home Park. In several instances, anomalies have been recorded
at a handful of locations that exhibit temporary increases in methane levels that exceed
the regulatory threshold of 5% by volume. These anomalies can generally be remedied
by adjustments to the LFG mechanical network, or through expansion of the control
system. A planned expansion is currently underway to address a recent anomaly
associated with utility work and construction activities at the City Yards.
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Packet Pg. 106 Attachment: 4576 LFG Study Session (5159 : Montrose Environmental First Modication)
Background
Landfill Background
In 1904, the Simons Brick Company established a factory to manufacture pottery, brick,
tile and clay shingles alongside the Southern-Pacific tracks and adjacent to the Sunset
Brick and Tile Manufacturing Company. The operations included a large clay mining pit
located at present day Gandara Park and portions of the City Yards. This local resource
provided materials for the construction of many buildings in the Bergamot area and
West Los Angeles.
Following the closure of the clay mine in the 1940’s, the site transitioned to a landfill that
was primarily used for the disposal of construction debris composed of wood, cement,
metal, gypsum, and other construction related materials. Based on the historic aerial
photos it appears that municipal solid waste (residential trash) was disposed at this
location from approximately 1949 to 1952. The western portion of the pit remained
unfilled until approximately 1964, at which time it also appears to have been
predominantly filled with construction debris. At the time of the landfill’s closure in 1970,
it is estimated that it contained approximately 300,000 cubic yards of refuse. It is
estimated that the pit was a maximum of 30 to 35 feet deep at its southern edge and
considerably shallower along the northern edge (about 3 to 5 feet deep.) A layer of
approximately 3 to 5 feet of soil was reportedly used as a landfill cover material at the
site.
Figure 1: Approximate Boundary of the Landfill from 1977
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Discussion
The City has been actively monitoring methane levels at the former landfill site since
1996. California Title 27 regulations for control of LFG adopted in 1997 required a LFG
Control System to be installed to control gases generated by the decomposition of the
landfill material. An interim LFG Control System was installed in 1998. Construction of
the permanent LFG Control System that incorporated the interim system was completed
in the fourth quarter of 2000. The primary LFG components are methane and carbon
dioxide. Methane gases are the primary subject of this report, as methane is flammable
and thus presents safety considerations.
The objectives of the LFG Control System are:
• Reducing methane concentrations within the landfill;
• Reducing methane concentrations in native soils surrounding the landfill;
• Reducing methane concentrations in identified utility trenches; and
• Maintaining methane concentrations in perimeter subsurface detection probes
outside the landfill below the regulatory action level of five percent methane by
volume or 50,000 parts per million.
Five percent represents the lower flammability limit (LFL) for methane, which is the
lowest concentration of gas capable of producing a spark or flash of fire in the presence
of an ignition source. With methane concentration levels below the LFL, the gas would
be too lean to burn.
LFG Control System – How it Works
The system includes the following major components:
• Monitoring Probe Network: consisting of 37 subsurface probes for monitoring
LFG.
• Extraction Well Network: consisting of ten vertical wells that extract LFG from the
landfill.
• Conveyance Piping: consisting of underground piping to collect and transport
LFG from the extraction wells to the treatment compound.
• Treatment Equipment: consisting of multiple systems that treat the collected LFG
before it is discharged to the atmosphere through a 26-foot-high stack.
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Regulatory Compliance – Why We Have the Landfill Gas Control and Treatment
System
Policy decisions made 80 years ago provided for a landfill to be located in the present-
day Pico Neighborhood. Operations at the landfill ceased in 1970 and, in 1996, the City
was compelled to begin monitoring the site due to changes in the California Code of
Regulations. In order to control exposure to potential LFG emissions, the LFG Control
System was installed in 1998 and expanded in 2000. The LFG Control System was
approved and permitted by the SCAQMD and LACDPH. These permits require the
following monitoring and maintenance activities:
• Bi-weekly Activities:
o Check the treatment vessels outlet for volatile organic compounds (VOCs)
and schedule a media replacement if VOCs exceeds 20 parts per million
(ppm).
o Check the blower and equipment for any LFG leaks and to ensure it is
operating properly.
o Check the condensate tank for remaining capacity to ensure it will be
pumped out and hauled away.
• Quarterly Activities:
o Monitor the vacuum methane, oxygen, carbon dioxide, and hydrogen
sulfide in all 10 LFG extraction wells and make adjustments, if necessary.
o Monitor the methane and pressure in all 37 probes (many of which have
multiple depths).
o Collect a composite sample of air from within three inches of the ground
throughout Gandara Park and have it analyzed by a certified laboratory for
methane and VOCs to ensure the total methane emissions in the park do
not exceed 25 ppm.
o Conduct instantaneous surface monitoring (ISM) for methane within three
inches of the ground surface throughout Gandara Park.
o Conduct ISM indoors throughout the City Yards buildings to check for LFG
in the buildings.
o Report findings to SCAQMD and LACDPH.
• Annual Activities:
o Collect LFG system outlet and inlet samples and have a certified
laboratory analyze them for hydrogen sulfide, methane, and VOCs to
check the functioning of the treatment system and ensure it is working
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properly.
o Collect a perimeter probe sample for VOC analysis at a certified
laboratory.
The continuous monitoring of the former landfill site has produced a record going back
nearly 25 years. As a whole, this record demonstrates that methane levels – both
underground and in the ambient air environment – are generally below the regulatory
compliance threshold of 5%, with a few isolated exceptions that are described in this
report in more detail. Overall, the site generates a low volume of methane. This can be
attributed to the landfill being over 50 years old and to the composition of the waste
landfilled, which was predominantly construction debris such as concrete blocks, bricks,
and wood. Based on the volume and type of waste in place and the known time the
landfill was in operation, landfill modelling indicates that the landfill’s ability to generate
methane is very low and will continue to decrease over time.
Community Concerns About Methane and Environmental Justice
Over the years, concerns have been expressed by the community over the presence of
LFG and its potential impact on the human environment. As part of the former landfill
sits beneath a public park, concerns have been raised about the effects of emissions on
families and children and the potential for the vented methane to combust. Similar
concerns have been expressed by the neighboring residential community living adjacent
to the former landfill site at Mountain View Mobile Home Park.
The City closely monitors the LFG to track methane levels to a high degree of accuracy,
provide a historical record, and ensure a stable and safe human environment. The LFG
system’s network of monitoring probes and gas extraction wells help to form a barrier
against any potential methane leaks, and effectively monitor and extract landfill gasses
near sensitive residential areas including the Mountain View Mobile Home Park, as well
as Gandara Park. The compliance reporting requirements that are satisfied by a
licensed contractor, Montrose Environmental, ensure independent professionals
continually evaluate the system for changing conditions. The current scope of services
with Montrose Environmental covers preventive maintenance, proactive upgrades, and
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field monitoring of the landfill gas extraction system to ensure optimum operation and
performance of the components in extracting landfill gases. This allows the City to go
above and beyond the regulatory requirements set by the LADPH and SCAQMD.
Members of the public may request copies of the City’s Quarterly LFG Operations,
Maintenance, and Monitoring Reports from CalRecycle (Attachment A) or from
SCAQMD (Attachment B).
Subsurface Methane Levels
Since the LFG control system began operation, required monitoring of subsurface vapor
probes has documented that methane concentrations in native soils surrounding the
landfill are generally below regulatory action levels. Similarly, the network of trench
probes that exists at the site have not contained methane in excess of the regulatory
action limit, with the exception of trench probe TP-2 located in the City Yards that is
described below. Multi-depth vertical monitoring probes are installed along the
perimeter of the landfill. A total of 37 probe clusters are used to detect any landfill gas
that may be traveling through the subsurface soil. The probe clusters each contain
shallow, intermediate, and deep probe depths.
Monitoring at Mountain View Mobile Home Park
LFG monitoring equipment installed between the landfill and the Mountain View Mobile
Home Park consists of eight perimeter probe clusters, eight landfill gas extraction wells,
and two sumps. These are located along the northeast perimeter of the mobile home
park to detect and prevent LFG migration. There were also ten former monitoring
probes situated within the Mountain View Mobile Home Park. After LFG was
consistently not detected (0.0 ppm) for an extended number of years, the regulatory
agencies no longer required the City to test and sample monitoring wells MVP1 through
MVP10.
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Figure 2: Map of Shallow Probes In Compliance with LADPH and SCAQMD Requirements
Ambient Air Methane Levels
The SCAQMD permits require a composite air sample be collected quarterly within
three inches of Gandara Park for methane and VOC analysis. The results of these
samples in recent years have been consistently below the SCAQMD limit of 25 ppm.
Compliance with Regulatory Requirements
Quarterly compliance reports detailing methane levels throughout the monitoring and
control system are submitted to SCAQMD and there have been no non-compliance
violations recorded against the City of Santa Monica. Quarterly compliance reports are
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also submitted to the LADPH. An inspector from the LADPH has inspected the site
quarterly for the past 20 years. During that time there have been no enforcement
actions for the Santa Monica Landfill. There have been “Areas of Concern” or minor
“Violations” noted on the inspection reports, most of which occurred back in the late
1990s and early 2000s when the LFG Control System was being installed and later
expanded. The most recent of these occurred in 2018 and 2019. They were due to
water ponding in the City Yards and exceedances of 5% methane detected in the
nearby subsurface probe PP-6. This exceedance was noted on June 13, 2019, when
5.1% methane was detected in probe PP-6B. Subsequent inspections of PP-6
consistently indicate no exceedances of 5% methane.
Anomalies in Historically Low Methane Levels
Methane concentrations exceeding 5% have occurred sporadically in certain Rule
1150.1 compliance probes. These elevated concentrations have been controlled
through LFG extraction well adjustments and upgrades on aging LFG equipment.
Upgrades have included installing new well heads and sump pumps, improving
compressor operation, and keeping the vacuum system continually running with a new
variable frequency drive which allows the City to control the vacuum system and blower.
Two anomalies identified in the continuous system monitoring warrant further discussion
in this report, as they demonstrate the City’s commitment to transparency and to
maintaining tight oversight of LFG emissions.
• Trench Probe #2– Potential Sewer Utility Off-Gassing
Only the methane concentrations in trench probe TP-2, which is located on the
north side of the City Yards in front of the Water Resources Division’s facilities,
have consistently exceeded the Rule 1150.1 limits. The methane readings
collected from this compliance monitoring probe have been higher than most of
the landfill gas extraction wells, ranging from 22.3% to 38.4% by volume in air
since 2016. Montrose believes the gas detected in probe TP-2 may not be
originating from the landfill, but instead is the product of a nearby sewer utility.
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Montrose conducted gas sample fingerprinting during the first quarter of 2020 by
comparing laboratory analysis of vapor samples collected from probe TP-2 and
the closest LFG extraction well (LFG-7). The analytical results indicate the gases
are different and that TP-2 may not be detecting LFG but may be detecting sewer
gas from a nearby sewer line in the trench. LADPH is aware of the history of this
probe and there have been no violations issued for trench probe TP-2, which is
located in the City Yards area.
• Perimeter Probe Anomalies
There have been sporadic exceedance of the 5% methane detected in the
subsurface perimeter monitoring probes over the past 10 years. When elevated
levels of methane are detecting in perimeter probes, corrective actions are
performed. This usually includes checking and adjusting the nearby LFG
extraction wells.
Some of the perimeter probes are located very close to the edge of the landfill
waste and also to the LFG extraction wells. This close proximity to LFG sources,
makes it more likely to periodically have readings that exceed 5% methane. In
order to monitor the probe, it has to be evacuated by connecting it to a pump. By
putting the probe under vacuum to collect a sample, LFG from the surrounding
soil may be drawn towards and into the probe. Therefore, one-time anomalous
elevated methane readings in the perimeter probes may be due to sampling
errors and are not necessarily an indication that LFG is migrating beyond the
site’s border.
The following maps show all the perimeter monitoring probes at the site. Next to
each probe is either a green dot or yellow dot. The green dots indicate that probe
has not exceeded 5% in the past five years of quarterly readings (20 monitoring
events). The yellow dot indicates that the probe has had one or more
exceedances of 5%. Since each probe has 3 depths, the shallow, intermediate,
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and deep probes are shown on three separate maps.
Figure 3: Shallow Probe Map (Green Dots = No Readings Over 5% and Yellow Dots = 1 or More
Readings Over 5% in Past 5 Years)
Figure 4: Intermediate Probe Map (Green Dots = No Readings Over 5% and Yellow Dots = 1 or More
Readings Over 5% in Past 5 Years)
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Figure 5: Deep Probe Map (Green Dots = No Readings Over 5% and Yellow Dots = 1 or More Readings
Over 5% in Past 5 Years)
• Recent Anomalies at City Yards Construction Site – Expansion of the LFG
System
As a result of recent utility work and construction activities of the new Fleet
Maintenance building located at the City Yards, several new anomalies were
recently identified. The City was contacted by Southern California Gas Company
in June 2021 regarding the results of their aerial methane mapping survey, which
identified two locations with detectable levels of methane in the City Yards.
Asphalt and concrete were removed at these two locations during construction,
and planters and electrical conduit boxes were installed.
Based on a thorough investigation involving surface monitoring at multiple areas
in the City Yards, it was determined that two subsurface electrical conduit boxes
had elevated methane readings. To reduce the methane detected in these
locations, Montrose increased the vacuum at the nearest two LFG extraction
wells and the City contractor capped open conduits within the boxes. This
reduced the methane concentrations in the utility boxes. These locations have
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been added to the routine monitoring program and will continue to be inspected.
In addition, Public Works is installing an additional vertical LFG extraction well to
reduce and capture methane near the surface in these areas. This work is
covered by existing contracts. Staff is preparing to submit applications and obtain
permits from the LACDPH and SCAQMD for the installation of the new well and
all necessary trenching and piping connections to the existing LFG header. A
Work Plan and Health and Safety Plan will be prepared to describe the proposed
construction activities and safety protocols to be performed at the site.
Figure 6: Proposed Location of Additional LFG Extraction Well and Piping
System Maintenance
The LFG system has performed well over the past twenty-four years, owing to a routine
maintenance schedule that continuously evaluates the condition of all mechanical
equipment. Repairs are performed when necessary, or when the opportunity to improve
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the system with upgraded components is presented through advances in technology or
science. Routine maintenance and repairs are covered in the City’s existing contract
with Montrose.
Conclusion
The City maintains an inactive landfill site located beneath Gandara Park and portions
of the Municipal City Yards in the Pico Neighborhood with a Landfill Gas Control
System. The LFG Control System has been in continuous operation since 1998 to
monitor methane levels and to maintain safe environmental conditions for nearby Pico
Neighborhood residents, park users, and City staff who work at the Yards. Oversight of
the LFG Control System is performed by a licensed independent contractor, Montrose
Environmental, that maintains, operates, and manages the LFG Control System in strict
accordance with permits from the County of Los Angeles Department of Public Health
(LADPH) and the South Coast Air Quality Management District (SCAQMD).
Montrose performs biweekly system inspections to confirm the LFG Control System is
running properly and provide maintenance to the mechanical equipment. Montrose also
monitors the landfill surface and the LFG detection and collection system quarterly. By
regularly monitoring the 37 perimeter and trench probe clusters for LFG detection in the
subsurface soil, staff can identify elevated methane and perform adjustments or repairs
on the LFG extraction wells. The LFG extraction wells are monitored to ensure they are
providing the maximum LFG control at the site. The entire landfill surface is monitored
for LFG emissions and repairs and updates are made as necessary to ensure the health
and safety of the public and City workers.
Financial Impacts and Budget Action
There is no immediate financial impact or budget action necessary as a result of this
action. Staff is using existing funds for installation of an additional vertical LFG
extraction well. City Council approved funds to award a contract with Montrose
Environmental for services related to the operation, maintenance, and compliance
sampling and reporting for the City’s Landfill Gas Control System at the July 27, 2021
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meeting. The total contract amount was $715,211 of which $137,990 was approved for
FY 2021-22.
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Contract No. 11181 (CCS)
PROFESSIONAL SERVICES AGREEMENT
This Professional Services Agreement (“Agreement”), entered into as of _____________,
2021 (“Execution Date”), by and between the City of Santa Monica (“City”) and ES
ENGINEERING SERVICES, LLC (“ES ENGINEERING SERVICES” or “Consultant”),
is made with reference to the following:
RECITALS:
A. The City is a municipal corporation duly organized and validly existing under the laws
of the State of California with the power to carry on its business as it is now being
conducted under the statutes of the State of California and the Charter of the City.
B. ES ENGINEERING SERVICES is qualified to do business, and is doing business, in
the State of California. ES ENGINEERING SERVICES represents it has the
background, knowledge, experience and expertise necessary to provide the services set
forth in this Agreement.
C. The City and ES ENGINEERING SERVICES now desire to enter into an agreement
for ES ENGINEERING SERVICES to provide professional services to the City.
NOW, THEREFORE, it is mutually agreed by and between the undersigned parties as
follows:
TERMS AND CONDITIONS
1. Term. This Agreement begins on the Execution Date and terminates five (5)
calendar years after the Execution Date, unless sooner terminated in accordance with
Section 14.
2. ES ENGINEERING SERVICES. ES ENGINEERING SERVICES shall perform all
of the services (“Services”) described in Exhibit A, Scope of Services, and further
detailed in the Specific Work Plan. ES ENGINEERING SERVICES shall complete
the Services in accordance with Exhibit B, Budget.
3. City Services. The City agrees to:
3.1 Make available to ES ENGINEERING SERVICES any currently existing
documents, data or information required for the performance of the Services.
3.2 Designate a representative authorized to act on behalf of City.
3.3 Promptly examine and render findings on all documents submitted for staff
review by ES ENGINEERING SERVICES.
4. Compensation. The City shall compensate ES ENGINEERING SERVICES for the
Services performed in an amount not to exceed $621,923, as set forth in Exhibit B.
- 1 -
DocuSign Envelope ID: DC73B454-C80D-4173-AE59-EB2A3583FE82
9/20/2021
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5. Invoices. ES ENGINEERING SERVICES will invoice the City for the Services in
accordance with Exhibit B and the City will pay any undisputed amount within 30
days of receipt.
6. Notices. All notices, demands, requests or approvals to be given under this
Agreement, must be in writing and will be deemed served when delivered personally,
by email, or on the third business day after deposit in the United States mail, postage
prepaid, registered or certified, addressed as follows:
6.1 All notices, demands, requests or approvals to the City:
City of Santa Monica
Office of Sustainability and the Environment
1685 Main Street, Third Floor
Santa Monica, California 90401
Attention: James Velez-Conway
Re: Contract No. 11181 CCS
with a copy to:
Santa Monica City Attorney’s Office
1685 Main Street, Third Floor
Santa Monica, California 90401
Attention: City Attorney
Re: Contract No. 11181 CCS
6.2 All notices, demands, requests or approvals to ES ENGINEERING SERVICES:
ES ENGINEERING SERVICES, LLC dba Montrose Environmental
Solutions
1631 East Saint Andrews Place
Santa Ana, California 92705
Attention: Dane Nygaard
Re: Contract No. 11181 CCS
7. Independent Parties. Both parties to this Agreement will be acting in an independent
capacity and not as agents, employees, partners, or joint venturers of one another.
Neither the City nor its officers or employees will have any control over the conduct
of ES ENGINEERING SERVICES or any of ES ENGINEERING SERVICES’s
agents, employees, or subconsultants, except as otherwise provided in this Agreement.
8. Integrated Contract. This Agreement represents the full and complete understanding
of every kind or nature whatsoever between the parties. Any preliminary negotiations
and agreements of any kind or nature are merged into this Agreement. No oral
agreement or implied covenant may be held to vary the provisions of this Agreement.
This Agreement may be modified only by written agreement signed by City and ES
ENGINEERING SERVICES, and approved as to form by the City Attorney.
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9. Insurance. Prior to commencing work, ES ENGINEERING SERVICES must
procure, maintain and pay for insurance against claims for injuries to persons or
damage to property that may arise from or in connection with the performance of the
Services by ES ENGINEERING SERVICES or ES ENGINEERING SERVICES’s
agents, representatives, employees or subconsultants for the duration of this
Agreement. ES ENGINEERING SERVICES must obtain insurance that, at a
minimum, meets the requirements for insurance set forth in Exhibit C, Insurance
Requirements and Verifications.
10. Defense and Indemnification.
10.1 Indemnification. As to ES ENGINEERING SERVICES’s Services produced
under this Agreement, ES ENGINEERING SERVICES agrees to defend,
indemnify, protect, and hold harmless the City, its agents, officers, boards and
commissions, and employees (collectively, “City”) from and against any and all
liability, claims, demands, damages, or costs, including but not limited to
attorney’s fees, or payments for injury to any person or property (collectively,
“Losses”) caused or claimed to be caused by the acts, errors and/or omissions
of ES ENGINEERING SERVICES, or ES ENGINEERING SERVICES’s
employees, agents, officers, and subconsultants. ES ENGINEERING
SERVICES’s responsibilities under this Section 10.1 include liability arising
from, connected with, caused by, or claimed to be caused by the active or
passive negligent acts or omissions of the City, which may be in combination
with the acts or omissions of ES ENGINEERING SERVICES, its employees,
agents or officers, or subconsultants; provided, however, that ES
ENGINEERING SERVICES’s duty to defend, indemnify, protect and hold
harmless shall not include any Losses arising from the sole negligence or willful
misconduct of the City. Notwithstanding ES ENGINEERING SERVICES’s
obligation to defend City hereunder, City has the right to conduct its own
defense and seek reimbursement for reasonable costs of defense from ES
ENGINEERING SERVICES, if City chooses to do so.
10.2 Enforcement Costs. ES ENGINEERING SERVICES agrees to pay any and all
costs the City incurs enforcing the indemnity, defense and hold harmless
provisions set forth in Section 10.1.
11. Prohibition Against Transfers.
11.1 ES ENGINEERING SERVICES may not assign, hypothecate, or transfer this
Agreement or any interest therein directly or indirectly, by operation of law or
otherwise without the prior written consent of City. Any attempt to do so
without the City’s consent will be null and void, and any assignee,
hypothecatee or transferee acquires no right or interest by reason of such
attempted assignment, hypothecation or transfer.
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11.2 The sale, assignment, transfer or other disposition of any of the issued and
outstanding capital stock of ES ENGINEERING SERVICES or of any general
partner or joint venturer or syndicate member of ES ENGINEERING
SERVICES, if a partnership or joint venture or syndicate exists, which results
in changing the control of ES ENGINEERING SERVICES, will be construed
as an assignment of this Agreement. Control means 50% or more of the voting
power of the corporation.
12. Permits and Licenses. ES ENGINEERING SERVICES, at its sole expense, must
obtain and maintain during the term of this Agreement all required business and
professional permits, licenses and certificates.
13. Waiver. A waiver of any breach of this Agreement may not be deemed a waiver of any
subsequent breach of the same or any other term, covenant, or condition of this
Agreement.
14. Default and Termination.
14.1 If ES ENGINEERING SERVICES fails or refuses to perform any of the
provisions of this Agreement, and if the default is not cured within a period of
five days after the City’s written notice of default specifying the nature of the
default, City may immediately terminate this Agreement by written notice to
ES ENGINEERING SERVICES.
14.2 The City has the option, at its sole discretion and without cause, of terminating
this Agreement by giving ten days’ written notice to ES ENGINEERING
SERVICES. Upon termination of this Agreement, City will pay ES
ENGINEERING SERVICES any compensation earned and unpaid up to the
effective date of termination.
15. Compliance with Law. ES ENGINEERING SERVICES must comply with all laws of
the State of California and the United States, and all ordinances, rules, and
regulations enacted or issued by City.
16. Discrimination. ES ENGINEERING SERVICES may not discriminate in the
provision of services hereunder because of race, color, religion, national origin,
ancestry, sex, age, sexual orientation, marital status, AIDS or disability.
17. Nuisance. ES ENGINEERING SERVICES may not maintain, commit, or permit the
maintenance or commission of any nuisance in connection with the performance of
services under this Agreement.
18. Records.
18.1 ES ENGINEERING SERVICES must maintain complete and accurate records
with respect to costs, expenses, receipts and other such information required by
the City for any services provided where compensation is on the basis of hourly
rates, subconsultant costs, or other direct costs. ES ENGINEERING
SERVICES must keep the records, together with supporting documents,
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separate from other documents and records and maintain them for a period of
three years after receipt of final payment.
18.2 ES ENGINEERING SERVICES must maintain records in sufficient detail to
permit an evaluation of the Services and in accordance with generally accepted
accounting principles. ES ENGINEERING SERVICES must clearly identify all
records and make them readily accessible to the City. At the City’s request, ES
ENGINEERING SERVICES must provide records in an electronic format
and, if necessary, access to any proprietary software to view such electronic
records.
18.3 ES ENGINEERING SERVICES must allow the City to have free access to ES
ENGINEERING SERVICES’s books and records and to inspect all work, data,
documents, proceedings and activities related to this Agreement. The City has
the right to examine or audit ES ENGINEERING SERVICES’s records, and
ES ENGINEERING SERVICES agrees to cooperate with any examination or
audit of its records. If a City audit discloses an error of 5% or more in
information reported by ES ENGINEERING SERVICES, ES ENGINEERING
SERVICES agrees to pay the cost of the City’s audit computed on the basis of
four times the direct payroll of the audit staff completing the audit and audit
report.
19. Work Product; Reports.
19.1 Any work product prepared or caused to be prepared by ES ENGINEERING
SERVICES or any subconsultant for this Agreement will be the exclusive
property of City. No work product given to or prepared by ES ENGINEERING
SERVICES or any subconsultant pursuant to this Agreement may be made
available to any individual or organization by ES ENGINEERING SERVICES
without prior written approval by City.
19.2 At the City’s request, ES ENGINEERING SERVICES must furnish reports
concerning the status of the Services.
20. Standard of Care. ES ENGINEERING SERVICES agrees to provide all Services,
including services performed by any subconsultant, in a manner consistent with the
level of care and skill ordinarily exercised by members of ES ENGINEERING
SERVICES’s profession currently practicing in the same locality under similar
conditions.
21. Subconsultants.
21.1 If ES ENGINEERING SERVICES proposes to have any subconsultant perform
any part of the Services, ES ENGINEERING SERVICES must submit a
request for approval in writing, describing the scope of work to be
subcontracted, the name of the proposed subconsultant, and the total price or
hourly rates used in preparing an estimated cost for the subconsultant’s
services. The City, in its sole discretion, may grant or deny the request.
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21.2 ES ENGINEERING SERVICES will be responsible for the quality of any
subconsultant’s work. Every subcontract or agreement of any kind entered into
between ES ENGINEERING SERVICES and any subconsultant (or between
any subconsultant and others) must contain the following provision:
This agreement is consistent with all terms and conditions of
the Agreement No. 11181 (CCS) entered into between the City
of Santa Monica and ES ENGINEERING SERVICES on
.
22. Governing Law. The laws of the State of California, without regard to any choice of
law provisions, will govern this Agreement.
23. Venue and Jurisdiction. The City and ES ENGINEERING SERVICES agree that the
Services will take place in Los Angeles County. Any litigation arising out of this
Agreement may only be brought in either the United States District Court, Central
District of California, or the Superior Court of California, County of Los Angeles,
West District, as appropriate. The parties agree that venue exists in either court, and
each party expressly waives any right to transfer to another venue. The parties further
agree that either court will have personal jurisdiction over the parties to this
Agreement.
24. Survival of Provisions and Obligations. Any provision of this Agreement, which by its
nature must be exercised after termination of this Agreement, will survive termination
and remain effective for a reasonable time. Any obligation that accrued prior to
termination of this Agreement will survive termination of this Agreement.
///
///
///
///
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25. Exhibits. The following exhibits are incorporated by reference into this Agreement as
though fully set forth herein.
Exhibit A Scope of Services
Exhibit B Budget
Exhibit C Insurance Requirements
In witness whereof, the parties have caused this Agreement to be executed the day and
year first above written.
ATTEST:
DENISE ANDERSON-WARREN
City Clerk
APPROVED AS TO FORM:
GEORGE CARDONA
Interim City Attorney
CITY OF SANTA MONICA,
a municipal corporation
By:
JOHN JALILI
Interim City Manager
ES ENGINEERING SERVICES, LLC
By:
Name:
Title:
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9/14/2021
9/14/2021
Dane Nygaard
Senior Manager
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Exhibit A - Scope of Services
SCOPE OF WORK
The routine scope of work for monitoring, maintenance and troubleshooting, and reporting
requirements for City’s Landfill includes bi-weekly, quarterly, annual, and as needed tasks. There
are three general categories of services which the City is currently soliciting: 1) Operation,
Maintenance, and Monitoring of the LFG Control System; 2) Monitoring of the probe system in
accordance with the City’s AQMD Rule 1150.1 Compliance Plan; and 3) Miscellaneous Services.
Montrose has the professional experience and resources to meet the required scope of work.
As the incumbent consultant, Montrose understands that the landfill and the LFG Control system
are operated in compliance with the SCAQMD conditionally approved Rule 1150.1 Compliance
Plan, the 2004 SCAQMD permit to operate #F66238 and the 2003 SCAQMD permit to operate
#F59249. The City of Santa Monica Landfill #2 is under the oversight of the County of Los Angeles
Department of Public Health (LEA). Reports containing the results of monitoring events are
submitted to both agencies on a quarterly basis.
Montrose understands that required monitoring is performed on a bi-weekly, quarterly and
annual basis and reported quarterly for the ISM, ISS, probe monitoring, well monitoring and
system monitoring. A summary table of the required monitoring and O&M schedule, according
to Permits to Operate F66238 and F59249 and the 2018 Compliance Plan #567444 is provided as
Appendix E. The following tasks are grouped in categories stated in the RFP for the ease of
reference.
1. Operation, Maintenance and Monitoring of the LFG Control System
As stated before, our approach to monitoring and maintenance is simple: We are proactive! This
is what we do and we are well known for our expertise. We understand the importance of the
proper LFG system operation for the safety of the environment. The LFG equipment will be
properly maintained and kept in good operating condition at all times. Montrose’s senior
personnel assigned to this project has extensive experience in the field of landfill gas collection
system design, operation and maintenance of the systems, regulatory compliance and reporting.
We will provide all operation, maintenance, and monitoring services for the existing LFG control
system at the site.
LFG System Monitoring – Bi-weekly
Landfill Gas System Monitoring
Montrose will monitor the LFG system on a bi-weekly basis as required according to the 6th, 10th
and 12th conditions in permit #F66238. During the bi-weekly activities Montrose will inspect the
blower and LFG components and monitor for methane using an FID. If leaks detected above 500
parts per million by volume (ppmv) occur, they will be reported to the City and AQMD within 24
hours and repaired within 3 working days. In addition, the outlet of the carbon vessels will be
monitored for VOC breakthrough (above 20 parts per million by volume) using a photoionization
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detector (PID). The condensate sumps will also be inspected, maintained and the condensate
tank will be inspected for fluid levels on a bi-weekly basis. Additionally, Montrose will observe
and report the proper operation of the compressor and fluids within the knockout tank.
LFG System Monitoring - Quarterly
Well Field Monitoring
Subsequent to the quarterly probe monitoring, Montrose will monitor the gas extraction wells
and will make the appropriate well head adjustments to control flow based on the well data and
probe monitoring data. Knowing the methane concentrations in the gas probes before the wells
are monitored makes it easier for the technician to determine the appropriate LFG well
adjustments as the LFG well readings are collected. Each well, wellhead, control assembly, sumps
and all other components of the system are monitored and checked to verify that they are tight
and functioning properly. Montrose will check vacuum using a manometer at each well and well
lateral to verify that vacuum is constant throughout the LFG system. A GEM 5000 or equivalent
gas monitor will be used to monitor LFG gas for methane, oxygen, carbon dioxide and hydrogen
sulfide and a TSI thermal anemometer or equivalent will be used to measure landfill gas flow
from the wells and temperature in wells.
Blower Station Operation and Maintenance
All components of the blower station will be checked and monitored quarterly for proper
operation and need for maintenance and/ or repairs or replacement. At a minimum the
monitoring will include;
Monitor the blower station and include operating information in the quarterly report,
The blower performance will be checked for abnormal operation. If problems are found
or suspected, corrective action will be taken and documented in the quarterly reports.
Check the water level in the condensate sumps,
Check all valves,
Check blower station environment for cleanliness, removing trash regularly,
Check the water level in the condensate water tank. Arrange for and coordinate water
removal and disposal when the tank is 80% full,
Arrange for and coordinate carbon replacement as needed,
Monitor the gas quality before the carbon canisters, between the carbon canisters and
after the blower, and
Check the flow before the carbon canisters.
Montrose will monitor the LFG system using a PID to confirm that the LFG system is reducing
NMVOCs to 20 ppmv or less. If NMVOCs breakthrough above 20 ppmv the spent carbon will be
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replaced and disposed of properly. Montrose evaluated historical carbon loading and the need
for carbon replacement occurs approximately every year.
Indoor Air Monitoring
Indoor air monitoring is a requirement requested by the LEA in the December 22, 1997 Interim
Landfill Gas Control System at the Santa Monica Corporation Yard correspondence. The current
SCAQMD compliance plan and permits to operate do not require indoor air monitoring. However,
indoor air monitoring has been conducted in the past and Montrose will continue to conduct
indoor air monitoring on a quarterly basis until notified otherwise. Montrose will perform
monitoring of the interior of each fully enclosed on-site structure to assess the potential
migration of LFG and accumulation of both potentially explosive concentrations of combustible
gases as well as potentially toxic or carcinogenic gases in the enclosed structures at the site.
Montrose will use a flame ionization detector (FID), to monitor and assess concentrations of
explosive gases and total organic vapor within the structures. All monitoring equipment shall be
calibrated daily prior to the startup of the work. Any readings exceeding 500 ppmv at any areas
within indoor structures, near any cracks, joints or utility piping protruding from concrete or
asphalt, shall be recorded on a map, and the City shall be notified.
Integrated Surface Sampling (ISS)
This sampling event is conducted quarterly to test for toxic air contaminants (TAC) and total
organic compounds (TOC) across the unpaved section of the landfill. Montrose shall perform ISS
over the pre-established walk pattern identified on Figure 2, of the Arthur D Little Submittal of a
Revised Rule 1150.1 Compliance Plan dated August 20, 1999. ISS shall be conducted when the
landfill is dry and average wind speed is 5 mph or less, and the instantaneous wind speed is 10
mph or less. During sample collection, the sample tip shall be maintained between 0 to 3 inches
above the landfill surface, as the technician walks at a speed of 2-3 miles per hour over a 2,600
linear-foot walking pattern within the grid. The sample shall be collected in a 10-liter Tedlar bag
that is enclosed in a light sealed box. Only one sample will be required; as the total area of the
unpaved section of the landfill is well below 50,000 square feet. The sample will be submitted to
a certified laboratory under Chain-of-Custody procedures and analyzed for TAC listed in SCAQMD
1150.1 Table 1 Toxic Air Contaminants (Core Group) by EPA Method TO-15 and EPA Method
15/16, NMOCs as hexane, methane and fixed gases by SCAQMD Method 25.1, and upon an
SCAQMD written request for additional TAC as listed in SCAQMD 1150.1 Table 2 Toxic Air
Contaminants (Supplemental Group).
Instantaneous Surface Monitoring (ISM)
Instantaneous surface monitoring (ISM) shall be conducted quarterly over the pre-established
walk pattern identified on Figure 2, of the Arthur D Little Submittal of a Revised Rule 1150.1
Compliance Plan dated August 20, 1999 to identify the locations of areas with excessive landfill
gas emissions. Landfill gas emissions will be monitored using a Thermo TVA 1000B portable FID
or equal, calibrated prior to the start of the work, while walking a pre-established pattern at a
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speed of 1 to 2 feet per second. At all times the monitoring probe tip shall be maintained at
approximately 0 to 3 inches above the landfill surface. The concentration of any readings
exceeding 500 ppm and the location of that reading at areas of cap failure or fissures, etc., shall
be recorded on a map, and the City shall be notified.
LFG System Monitoring - Annually
LFG System Monitoring
On an annual basis, Montrose will perform hydrogen sulfide, TOC and TAC emissions monitoring
of the LFG system. Landfill gas entering the gas control system will be collected using a 10-liter
Tedlar bag collected over a 10-minute period of time and submitted to a certified analytical
laboratory. The sample will be analyzed for hydrogen sulfide using EPA Method 15/16, VOCs
using EPA Method TO-15 and fixed gases, TGNMOCs as Hexane and Methane using SCAQMD
Method 25.1. Ambient air samples are not required according to the 2018 Compliance Plan and
therefore will not be sampled.
Report Preparation
Montrose will prepare a Quarterly Report for submittal to the SCAQMD and the LEA documenting
the monitoring results, and corrective actions taken, if any, during each quarter. The report will
contain a summary of the site background, a summary of the operations of the previous quarter,
description of the sampling and monitoring procedures used, tabulated probe and well
monitoring data, ISS and ISM monitoring data, and discussions of the exceedances, if any, and
corrective actions and mitigation measures taken to correct a methane exceedance. The report
will also include a photographic logs any areas of concern that were observed and/or repaired.
The report will also include copies of the calibration logs, laboratory reports, and other forms and
supporting information regarding field monitoring, operations and maintenance. The quarterly
report will be submitted to the City for review and comments prior to the submittal to the
SCAQMD and the LACDHS within 20-25 days after the end of each reporting quarter. Report
records will be kept for a minimum of two years and will be available to the City or the AQMD
upon request.
2. Monitoring of the probe system in accordance with the City’s South Coast Air
Quality Management District Rule 1150.1 Compliance Plan
Twenty-nine perimeter probes, eight trench probes, and five landfill probes are located at the
landfill of which 24 multi-level perimeter probes and 6 trench probes are compliance probes; the
remaining 12 probes are installed at various locations for monitoring and wellfield adjustment
purposes. Montrose will monitor the perimeter probes prior to monitoring the LFG wells.
Identifying the probes with elevated methane concentrations enables the technician to make
appropriate vacuum and well flow adjustments in the field during the LFG well monitoring. Each
probe is monitored for the presence of carbon dioxide, oxygen, total organic compounds (TOC)
measured as methane and hydrogen sulfide using a Landtec® Gas Emission Monitor (GEM™) 5000
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or equivalent gas monitor. The static pressure of each perimeter gas migration probe is checked
first using the GEM™ or a Magnehelic® pressure gauge. Then, prior to measuring the gas
concentrations, a minimum of one probe casing volume of gas is evacuated using the GEM™
pump. The data recorded includes the date, probe number, static pressure and gas component
concentrations for each probe. The GEM™ unit is calibrated prior to performing monitoring.
Annually, a PID will be used to measure TAC concentrations within each compliance probe.
If a perimeter probe concentration of TOC exceeds 2% by volume and the probe is greater than
100 feet from the refuse, Montrose will use the grid method to instantaneously monitor the
surface between the refuse boundary and the perimeter probe.
Annually, Montrose will collect a Tedlar bag sample for TAC analysis from the probe with the
highest concentration during any of the monitoring periods within the year; if the FID
concentration does not exceed 5% by volume in any of the probes. No bag samples are required
for TOC. However, if FID concentrations of TOC exceed 5% by volume in any of the compliance
probes, Montrose will collect one bag sample annually from the probe with the highest
concentration for TOC and TAC laboratory analysis.
3. Miscellaneous Services
Under Miscellaneous Services, Montrose will be responsible for compiling and submitting draft
reports for City approval, and final copies to the regulatory agencies, as well as special reports
that may be required by the City.
Other services may include installation of additional wells, consultation on general site
management such as grading or infrastructure activities that might disturb the landfill cap, lateral
installation, header repair, sump repair and response to time-sensitive regulatory compliance
issues. Non-routine equipment related maintenance or repairs would also be included.
Information gathered during the project by Montrose is considered confidential and will be
released only upon written authorization by the Client as required by law. California law requires
a person to inform the State if a situation is encountered that can be considered an immediate
endangerment to the public's health or welfare and/or the environment.
The results contained in any oral or written report will be based upon the information acquired
at the time of the investigation. It is possible that not all conditions will be identified during this
project. The work will be consistent with the level of care and skill ordinarily exercised by
members of our profession currently practicing under similar conditions in Southern California.
No warranty is expressed or implied.
This proposal is the property of Montrose and may be used only by the City and only for the
purposes stated, within a reasonable time from its issuance.
LIMITATIONS
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Exhibit B - Budget
Tasks
Year 1
Year 2
Year 3
Year 4
Year 5 Proposal
Total
I. Operation, $66,802 $66,802 $68,806 $70,870 $72,996
Maintenance, and
Monitoring of LFG
Control System
II. Monitoring of Probe $10,687 $10,687 $11,008 $11,338 $11,678
System
III. Miscellaneous Tasks $42,503 $42,503 $43,778 $45,091 $46,444
Totals (not to
exceed)
$119,992 $119,992 $123,592 $127,229 $131,118 $621,923
Assumptions and Basis of Cost
The proposed cost shown above would remain the same for the first 2 years with a slight 3%
increase for the years 3, 4 and 5. The estimated costs are based on the following assumptions
and limitations:
Cost does not include replacement of a major components of the system, if necessary.
Montrose will provide the City with an estimate cost on a time and material basis based
on our current Rate Sheet (attached) and vendors’ cost of the equipment prior to
implementation.
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Montrose evaluated the carbon usage based on the site’s recent history and has
estimated that the carbon will need to be replaced approximately once a year to remain
in compliance with the SCAQM compliance plan. The cost of one carbon replacement per
year is included in the proposal. If any additional carbon replacements are necessary
Montrose will provide the City with a cost estimate on a time and material basis based on
our current Rate Sheet (attached) and vendors’ cost of the equipment and material. If a
carbon changeout is not required throughout the year, the carbon changeout will not be
billed on the quarterly invoices.
Montrose has included the cost to pump out the 600-gallon condensate tank three times
throughout the year. The number of times this condensate tank may be needed to be
pumped out varies due to weather and subsurface conditions. If any additional
condensate removal events are necessary, Montrose will provide the City with a cost
estimate on a time and material basis based on our current Rate Sheet (attached) and
vendors’ cost of the equipment and material. If a condensate removal event is not
required throughout the year, the condensate removal event will not be billed on the
quarterly invoices.
Montrose has provided 12 hours of project manager’s time for “as-needed consulting”
per month. Any additional time for document review, site visit, meetings, requested and
approved by the City on as-needed basis, will be billed at our current rates (attached).
The work will be performed in OSHA Level D protection (including hard hat and safety
vest).
At no time shall the title to hazardous substances, solid wastes, petroleum contaminated,
or the other regulated substances pass to Montrose, nor shall any provisions of this
Agreement be interpreted to obligate Montrose to assume status of a “generator,”
“transporter,” “operator,” or “treatment, storage, or disposal facility” under state or
federal law.
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Exhibit C
Insurance Requirements and Verifications
Professional Services Agreement Insurance Requirements –
With Professional Liability
Consultant shall procure and maintain for the duration of the Agreement insurance against
claims for injuries to persons or damages to property that may arise from or in connection
with the performance of the work hereunder by the Consultant, its agents, representatives,
employees or subcontractors.
Minimum Scope/Limits 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 and advertising injury, with limits of no
less than $1,000,000 per occurrence. If a general aggregate limit applies, either the
general aggregate limit shall apply separately to this project/location or the general
aggregate limit shall be twice the required occurrence limit.
2. Automobile Liability: Insurance Services Office Form CA 00 01 covering Code 1 (any
auto), or if the Consultant has no owned autos, Code 8 (hired) and Code 9 (non-
owned), with limits of no less than $1,000,000 per accident for bodily injury and
property damage.
3. Workers’ Compensation: Workers’ Compensation insurance as required by the State
of California, with Statutory Limits and Employers’ Liability Insurance with limits of
no less than $1,000,000 per accident for bodily injury or disease (see footnote #1).
4. Professional Liability: Insurance appropriate to the Consultant’s profession with a limit
of not less than $1,000,000 each claim/$2,000,000 in the annual aggregate (see footnote
#2).
5. Pollution Legal Liability: Contractor shall maintain Pollution Legal Liability Insurance
with a limit of not less than $1 million each occurrence or claim and a $2 million annual
aggregate.
If the Consultant maintains higher limits than the minimums shown above, the City of
Santa Monica requires and shall be entitled to coverage for the higher limits maintained by
the Consultant. Any available insurance proceeds in excess of the specified minimum limits
of insurance and coverage shall be available to the City of Santa Monica.
Other Insurance Provisions
DocuSign Envelope ID: DC73B454-C80D-4173-AE59-EB2A3583FE82
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1. The policies are to contain, or be endorsed to contain, the following provisions:
a. Additional Insured Status (CGL): The City of Santa Monica, its officers, officials,
employees and volunteers are to be covered as additional insureds on the CGL
policy with respect to liability arising out of work or operations performed by or on
behalf of Consultant 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 Consultant’s insurance at least as broad as
Insurance Services Office Form CG 20 10 11 85.
b. Primary Coverage: (CGL, Auto, and Professional Liability): For any claims related
to this contract, the Consultant’s insurance shall be primary as respects the City of
Santa Monica, its officers, officials, employees and volunteers. Any insurance or self-
insurance maintained by the City of Santa Monica, its officers, officials, employees
or volunteers shall be in excess of the Consultant’s insurance and shall not
contribute with it.
c. Notice of Cancellation (all policies): Each insurance policy required herein shall
state that coverage shall not be cancelled except after notice has been given to the
City of Santa Monica.
d. Waiver of Subrogation (all policies): Consultant hereby grants to the City of Santa
Monica a waiver of any right of subrogation which any insurer of said Consultant
may acquire against the City of Santa Monica by virtue of payment of any loss.
Consultant 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 Santa Monica has received a waiver of subrogation endorsement from the
insurer.
The Workers’ Compensation policy shall be endorsed with a waiver of subrogation
in favor of the City of Santa Monica for all work performed by the Contractor, its
employees, agents and subcontractors.
Deductibles and Self-Insured Retentions
Any deductibles or self-insured retentions must be declared to and approved by the City of
Santa Monica. The City of Santa Monica may require the Consultant to purchase coverage
with a lower deductible or retention or provide satisfactory proof of ability to pay losses and
related investigations, claim administration, and defense expenses within the retention.
Acceptability of Insurers
Insurance is to be placed with insurers with a current A.M. Best rating of no less than A:VII,
unless otherwise acceptable to the City of Santa Monica.
Claims Made Policies
DocuSign Envelope ID: DC73B454-C80D-4173-AE59-EB2A3583FE82
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1. If the Professional Liability policy provides “claims made” coverage:
a. The Retroactive Date must be shown, and must be before the date of this
Agreement or the start of work.
b. The insurance must be maintained and evidence of insurance must be provided for
at least 5 years after completion of work.
c. If the policy is cancelled or not renewed, and not replaced with another “claims
made” policy form with a Retroactive Date prior to the effective Agreement date,
the Consultant must purchase “extended reporting” coverage for a minimum of 5
years after completion of work.
Verification of Coverage
Consultant shall furnish the City of Santa Monica with original certificates and amendatory
endorsements or copies of the applicable policy language providing the insurance coverage
required herein. All certificates and endorsements are to be received and approved by the
City of Santa Monica before work commences. However, failure to obtain required
documents prior to the work beginning shall not waive the Consultant’s obligation to
provide them. The City of Santa Monica reserves the right to require complete, certified
copies of all required insurance policies, including the endorsements required herein, at any
time.
Failure to Maintain Insurance Coverage
If Consultant, for any reason, fails to maintain insurance coverage which is required
pursuant to this Agreement, the same shall be deemed a material breach of contract. The
City of Santa Monica, at its sole option, may terminate this Agreement and obtain damages
from the Consultant resulting from said breach. Alternatively, the City of Santa Monica
may purchase such coverage (but has no special obligation to do so), and without further
notice to the Consultant, the City may deduct from sums due to the Consultant any
premium costs advanced by the City for such insurance.
Subcontractors
Consultant shall require and verify that all subcontractors maintain insurance meeting all
the requirements stated herein. All exceptions must be approved in writing by the Risk
Manager.
Footnotes
DocuSign Envelope ID: DC73B454-C80D-4173-AE59-EB2A3583FE82
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Packet Pg. 136 Attachment: Executed-ES_Engineering_Contract_Sept_2021.docx (5159 : Montrose Environmental First Modication)
#1: Workers’ Compensation insurance coverage is not required if the Consultant does not
have employees. The Consultant must, however, execute the City’s Workers’
Compensation Coverage Exemption Declaration Form.
#2: Professional Liability insurance is required if the Consultant is providing a professional
service regulated by the State (e.g., insurance agents, doctors, lawyers, architects,
engineers, certified public accountants, etc.). However, some Consultants, such as
software designers, claims administrators, or human resources professionals, should
also carry Professional Liability insurance. Contact Risk Management for guidance.
DocuSign Envelope ID: DC73B454-C80D-4173-AE59-EB2A3583FE82
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Packet Pg. 137 Attachment: Executed-ES_Engineering_Contract_Sept_2021.docx (5159 : Montrose Environmental First Modication)
Montrose Environmental
1631 East Saint Andrews Plaza
Santa Ana, CA 92705
t 714.919.6500
June 15, 2022
James Velez-Conway
Senior Sustainability Analyst
City of Santa Monica
2500 Michigan Ave, Bldg. 4
Santa Monica, CA 90404
RE: Proposal for New LFG Extraction Wells and System Upgrades Needed at the Landfill
City of Santa Monica Corporate Yard
2500 Michigan Avenue, Santa Monica, California
Dear Mr. Velez-Conway,
Montrose Environmental Solutions (Montrose) is pleased to submit this proposal for
recommended upgrades to the landfill gas (LFG) control and treatment system for the City of
Santa Monica landfill site located at 2500 Michigan Avenue within the City of Santa Monica.
This proposal has been prepared to estimate the permitting, preparation, installation, repair,
replacement, and related reporting costs for needed upgrades at the site to ensure proper
system operation and prevent future compliance issues.
The bulk of these costs are related to the installation of two new dual-completion vertical
landfill gas extraction well (LFG-11 and LFG-12). The installation these new LFG extraction wells
has been determined to be necessary to control the elevated methane that has been detected
in the planter boxes in the central parking lot area and also at probes PP-14 and PP-5R (see
attached map). Currently the landfill is out-of-compliance due to the methane concentration at
PP-14.
LFG Extraction Wells Installation
Prior to field activities engineered plans showing the LFG extraction well, horizontal trench, and
lateral piping connection to the existing LFG header will be submitted to the Santa Monica
Department of Public Works (SMDPW) for approval. An application to modify the number of
vertical LFG extraction wells listed on the Permit To Operate F59249 will also be submitted to
the South Coast Air Quality Management District (SCAQMD) along with these plans.
5.G.c
Packet Pg. 138 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First Modication)
Proposal for LFG Extraction Wells and System Upgrades Needed at the Landfill
City of Santa Monica Corporate Yard June 15, 2022
2500 Michigan Ave, Santa Monica Page 2
An engineer will also perform calculations to determine the friction loss of the LFG piping at the
site to ensure that the new wells will receive proper vacuum. This will also help to determine
the adequacy of the current equipment and piping to handle the current and additional LFG
flow.
Two weeks prior to scheduling field activities, the proposed locations will be marked with white
paint and Underground Service Alert (USA) will be notified to check for underground utilities in
the vicinity of the proposed excavation and drilling locations. Due to the knowledge of
subsurface utilities in the proposed area of drilling and trenching, a geophysical survey may not
be required. However, if it is requested it can be added to the proposal and would utilize
electromagnetic and ground penetrating radar to locate the underground utility lines and
identify subsurface features and structures.
A Site Specific Health & Safety Plan covering the drilling, excavation, and piping activities will be
prepared. The Enforcement Agent (LEA) from the LACDPH and the City of Santa Monica will be
notified prior to commencing any field activities. The LEA may require that the Workplan
detailing the installation activities be submitted for review and approval, prior to scheduling
field work.
Each day, before commencing field activities, a daily “tailgate” health and safety meeting will be
held with Montrose personnel and contracted employees. The work area(s) will be clearly
demarcated using caution tape, orange cones, and other safety barriers. If it is necessary to
leave any open borings or trenches overnight, the areas will be covered securely with steel
plates or similar.
A C-57 drilling contractor will be retained to provide soil boring and well installation services
using a CME-85 or CME-95 hollow stem auger drill rig. Prior to drilling a hand auger will be used
to clear the borehole location down five feet to ensure there are no signs of utilities. The
drilling augers will then be advanced and subsurface soil and waste materials logged every five
feet by a Geologist in Training under the oversight of a Professional Geologist to the total depth
of the boring.
Each well will have screens installed between approximately 25 to 40 feet deep (the deep zone)
and between 8 to 12 feet deep (the shallow zone). However, these zones may be modified
slightly due to the subsurface conditions encountered. The well screens should ideally be
placed in a zone of sandy fill or more permeable waste and not in a zone of ash or clayey fill,
which is less permeable. The proposed LFG extraction wells will be constructed similar to the
example Landfill Gas Extraction Well, which is attached to this proposal as Figure 2.
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Packet Pg. 139 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First Modication)
Proposal for LFG Extraction Wells and System Upgrades Needed at the Landfill
City of Santa Monica Corporate Yard June 15, 2022
2500 Michigan Ave, Santa Monica Page 3
The trenching to connect the well LFG-11 to the existing header near well LFG-9 is
conservatively estimated to be approximately 150 feet long (Figure 1). This will be in an area of
traffic, so traffic rated trench plates and coordination with the site will be required. The well
and trench area will be marked off with Caution Tape and Orange Cones or similar Safety
Supplies. The well should be installed in one day and the trenching contractors are expected to
take approximately 9 days to excavate from the well head to the header, lay the pipe, and
backfill and repave the trench.
The trench to connect well LFG-12 to the existing header is approximately 40 feet long and
should take 3 days to excavate, lay the pipe, and backfill. This well and trench are located in the
“Hanson Yard” construction area, which will be paved in future. Traffic rated metal plates will
be laid across the trench after it is backfilled.
Soil and waste cuttings generated during the vertical well installations will be contained in DOT-
approved 55-gallon steel drums. The soil drums will be appropriately labeled and stored in a
pre-selected designated location at the Santa Monica City Yard Site pending profiling results. A
composite sample will be collected for each well boring and analyzed by a State-Certified
analytical laboratory for hazardous contaminants to determine the appropriate handling and
disposal. Once profiled, the soil drums will be picked up by a licensed transporter and taken to a
certified disposal/recycling facility under manifest. The waste management cost estimate
includes the cost to transport and dispose of non-hazardous waste. It is anticipated that the
soils cuttings from the borings and the decontamination waste water from the well installations
will be non-hazardous. It is also expected that the surface fill soils excavated from the
trenching, will be reused to backfill the trench and will not require transport offsite.
Montrose will prepare a final report describing the installation activities and including the well
and trench construction details, the subsurface lithology encountered, the lab data, the Health
& Safety monitoring data, the permits obtained, and all other documents related to the well
installation.
The costs to complete the installation work with prevailing wage are outlined in the following
table. The estimate below includes all taxes and markup. The subcontractor quotes for the well
installation, trench and piping installation, laboratory analysis, and drum disposal, are available
upon request.
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Packet Pg. 140 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First Modication)
Proposal for LFG Extraction Wells and System Upgrades Needed at the Landfill
City of Santa Monica Corporate Yard June 15, 2022
2500 Michigan Ave, Santa Monica Page 4
TASKS COST
1 – Install vertical LFG-12 and trench including permits, plans, labor, travel, FID
monitoring, all materials and equipment, waste management and final
report
$67,000
2 – Install vertical LFG-11 and trench including permits, plans, labor, travel, FID
monitoring, all materials and equipment, waste management and final
report
$120,00
10% Contingency for unexpected delays, geophysical survey, fuel & parts price
increases
$18,700
Total Cost: $205,700
New Blower and Motor Installation
The current 20 hp blower and motor that provide vacuum to the LFG extraction wells are over
20 years old. The “backup” blower is also over 20 years old and had parts removed to support
the operating blower. If the active blower were to have mechanical issues, the parts would be
very hard to obtain due to its age and the landfill would be left without any LFG control
capability. Therefore, Montrose highly recommends installing a new 20 hp blower and motor
and making the current operating blower the “backup” blower. The new blower will also be
able to provide greater vacuum to the expanded LFG control system, which will help provide
greater control of the landfill gas at the site.
The costs to transport and install the blower and hook it up to the existing piping and electrical
systems including prevailing wage are included in the following table. The estimate below
includes all taxes and markup.
TASK COST
3 – Install 20 hp blower & motor including obtaining permits, labor, travel, all
materials and equipment.
$50,000
Rewire LFG System Control Panel to Improve Functionality & Restore Remote Notification
Due to the age of the control panel, some of the functionality has been lost. There used to be
an alarm “Call out system” in the past, but currently there is no functioning notification system
to alert Montrose or the City of problems at the site. If there is a power out, or the compressor
shuts down, or a condensate tank overflows, etc. it may be up to 7 days before Montrose
returns to the site and discovers the problem during the bi-weekly inspections. Montrose
obtained a quote from Bravi Electric to install a new call-out Alarm system, upgrade the control
5.G.c
Packet Pg. 141 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First Modication)
Proposal for LFG Extraction Wells and System Upgrades Needed at the Landfill
City of Santa Monica Corporate Yard June 15, 2022
2500 Michigan Ave, Santa Monica Page 5
panel, add a high liquid level sensor to the entrainment tank, and add emergency shut offs to
prevent the condensate tank from overflowing.
The cost including prevailing wage, permitting, taxes and markup are listed below.
TASK COST
4 – Install a new Alarm Call Out system, upgrade control panel and run new
conduit and wires, install float sensor on entrainment tank and wire high
level sensors to control panel. Includes obtaining permits, labor, travel, all
materials and equipment.
$40,000
Raise Probes and Header Access Vault in Hanson Yard Construction Area
Due to increased grades in the Hanson Yard construction area, probe clusters PP-14 and PP-5R
will need to have the casings extended on 6 probes and the protective boxes dug out and raised
for future accessibility. The protective box on the header access vault will also need to be
raised.
The cost below includes the materials, labor, taxes and markup.
TASKS COST
5 – Raise probes PP-5R, PP-14 and header access vault for accessibility $4,300
The Not-To-Exceed cost for these five tasks is $300,000.
Montrose appreciates the opportunity to be of service. If you have any questions or require
additional information, please do not hesitate to call us at (714) 919-6530.
Respectfully submitted,
Kris Kern Margaret Patrick
Project Geologist, G.I.T. Project Manager, P.G.
Attachments: Figure 1 – Aerial Photo with Approximate Proposed Well & Trench locations
Example of Dual Nested Landfill Gas Extraction Wells
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Packet Pg. 142 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First Modication)
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Packet Pg. 143 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First
WELL CONSTRUCTION DETAILS
WELL NUMBER:Proposed LFG-11 and LFG-12
WELL TYPE:Dual Nested Landfill Gas Extraction Well
LID ELEVATION (NGVD29):
CASING ELEVATION (NGVD29):
Large Traffic Rated Well Box DRILLING SUMMARY
Ground Surface INSTALLATION DATE:TBA
Concrete DRILLING COMPANY: TBA
Well Heads
3 feet 3 feet DRILLING RIG TYPE: Hollow Stem Auger
Clean Soil/Native + 5% bentonite 4 feet 4 feet
TOTAL DEPTH DRILLED:
6 feet 6 feet
Transition (#3 Sand or clean soil) 7 feet Blank Casing
Top of Screen 8 feet CONSTRUCTION DETAILS
BOREHOLE DIAMETER: ~18 inches
1/4 inch pea gravel filter pack Shallow Deep
0.10 inch V-wire Screen TOTAL WELL DEPTH: ~12 feet ~35 to 40 feet
BLANK CASING TYPE:
Bottom of shallow well screen 12 feet Shallow Deep
13 feet 13 feet BLANK CASING DIAMETER: 2-inch 6" screen
17 feet Shallow Deep
Clean Soil/Native + 5% bentonite 19 feet TOTAL BLANK CASING LENGTH: 8 ft. 25 ft.
Bentonite Seal
22 feet SCREEN TYPE: Sch 80, V-wire screen
Transition (#3 Sand or clean soil) 23 feet Shallow Deep
25 feet SCREEN SLOT SIZE: 0.10 inch 0.20 inch
Top of Screen Shallow Deep
SCREEN LENGTH: ~ 4 feet ~ 15 feet
SUMP LENGTH:
0.20 inch V-wire Screen
PROTECTIVE CASING STICKUP:
3/4 inch washed gravel filter pack Annulus Backfill MATERIAL:
SEAL MATERIAL Medium Bentonite Chips
Shallow Deep
FILTER PACK MATERIAL: 1/4 pea gravel 3/4 inch gravel
COMMENTS:
~40 feet
~ 41 feet
Sch 80 PVC
~18-inch minimum borehole
Clean Soil/Native compacted in 2 foot
lifts
~35 to 41 feet
Clean soil/Native mixed with 5% bentonite;
compacted soil backfilled in 2 foot lifts
* Drawing Not to Scale
Total Depth of Boring
Flush Threaded End Cap
Bentonite Seal
--
No Sump
1-inch berm to prevent
flooding
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Packet Pg. 144 Attachment: Santa Monica LFG Wells & System Upgrades Proposal 20220615 (5159 : Montrose Environmental First Modication)
19
CITY OF SANTA MONICA
OAKS INITIATIVE NOTICE
NOTICE TO APPLICANTS, BIDDERS, PROPOSERS
AND OTHERS SEEKING DISCRETIONARY PERMITS, CONTRACTS,
OR OTHER BENEFITS FROM THE CITY OF SANTA MONICA
Santa Monica’s voters adopted a City Charter amendment commonly known as the
Oaks Initiative. The Oaks Initiative requires the City to provide this notice and information
about the Initiative’s requirements. You may obtain a full copy of the Initiative’s text from the
City Clerk.
This information is required by City Charter Article XXII—Taxpayer Protection. It prohibits
a public official from receiving, and a person or entity from conferring, specified personal
benefits or campaign advantages from a person or entity after the official votes, or otherwise
takes official action, to award a “public benefit” to that person or entity. The prohibition applies
within and outside of the geographical boundaries of Santa Monica.
All persons or entities applying or receiving public benefits from the City of Santa
Monica shall provide the names of trustees, directors, partners, and officers, and names of
persons with more than a 10% equity, participation or revenue interest. An exception exists for
persons serving in those capacities as volunteers, without compensation, for organizations
exempt from income taxes under Section 501(c)(3), (4), or (6), of the Internal Revenue Code.
However, this exception does not apply if the organization is a political committee or controls
political committees. Examples of a “public benefit” include public contracts to provide goods or
services worth more than $25,000 or a land use approval worth more than $25,000 over a 12-
month period.
In order to facilitate compliance with the requirements of the Oaks Initiative, the City
compiles and maintains certain information. That information includes the name of any person
or persons who is seeking a “public benefit.” If the “public benefit” is sought by an entity, rather
than an individual person, the information includes the name of every person who is: (a)
trustee, (b) director, (c) partner, (d) officer, or has (e) more than a ten percent interest in the
entity. Therefore, if you are seeking a “public benefit” covered by the Oaks Initiative, you must
supply that information on the Oaks Initiative Disclosure Form. This information must be
updated and supplied every 12 months.
5.G.d
Packet Pg. 145 Attachment: ES Engineering Oaks Initiative Form MEG2-signed [Revision 1] (5159 : Montrose Environmental First Modication)
20
CITY OF SANTA MONICA
OAKS INITIATIVE DISCLOSURE FORM
In order to facilitate compliance with the requirements of the Oaks Initiative, the City compiles
and maintains certain information. That information includes the name of any person or
persons who is seeking a “public benefit.” If the “public benefit” is sought by an entity, rather
than an individual person, the information includes the name of every person who is: (a)
trustee, (b) director, (c) partner, (d) officer, or has (e) more than a ten percent interest in the
entity.
Public benefits include:
1. Personal services contracts in excess of $25,000 over any 12-month period;
2. Sale of material, equipment or supplies to the City in excess of $25,000 over a 12-month
period;
3. Purchase, sale or lease of real property to or from the City in excess of $25,000 over a
12- month period;
4. Non-competitive franchise awards with gross revenue of $50,000 or more in any 12-
month period;
5. Land use variance, special use permit, or other exception to an established land use plan,
where the decision has a value in excess of $25,000;
6. Tax “abatement, exception, or benefit” of a value in excess of $5,000 in any 12-month
period; or
7. Payment of “cash or specie” of a net value to the recipient of $10,000 in any 12-month
period.
Name(s) of persons or entities receiving public benefit:
Name(s) of trustees, directors, partners, and officers:
Name(s) of persons with more than a 10% equity, participation, or revenue interest:
Prepared by: ____________________________Title: __________________________
Signature: ______________________________________ Date: ________________
Email: ____________________________________ Phone: ____________________
FOR CITY USE ONLY:
Bid/PO/Contract # ____________________________ Permit # ___________________________
ES Engineering Services, LLC dba
Montrose Environmental Solutions
Vijay Manthripragada - President
Jose Revuelta and Joshua LeMaire - Vice Presidents
Allan Dicks - Treasurer
Nasym Afsari - Secretary
ES Engineering Services, LLC is 100% wholly owned by Montrose Environmental Solutions, Inc.
which is 100% owned by Montrose Environmental Group, Inc.. There are no persons who own more
than 10% of the ultimate parent company.
Nasym Afsari Secretary
nafsari@montrose-env.com 949.988.3500
6/8/22
5.G.d
Packet Pg. 146 Attachment: ES Engineering Oaks Initiative Form MEG2-signed [Revision 1] (5159 : Montrose Environmental First Modication)