TITLE
Recommendation to authorize City Manager, or designee, to execute an amendment to Agreement No. 34467 with AECOM Technical Services, Inc., of Long Beach, CA, to prepare a detailed design plan to control Davenport Park landfill gas emissions, increasing the contract amount by $160,000, for a new contract amount not to exceed $1,782,380. (Citywide)
DISCUSSION
City Council approval is requested to amend Agreement No. 34467 for groundwater monitoring, reporting, and remediation services with AECOM Technical Services, Inc. (AECOM), to add the Davenport Park (Park) landfill gas project. AECOM has been asked to create a workplan for landfill gas monitoring infrastructure development to reduce methane gas levels in the Park. The cost for the monitoring plan, remediation work plan, and detailed design work is estimated at $160,000.
AECOM has been working with the Fleet Services Bureau for the last four years, providing services for former City Fuel Sites 7, 10, 11, and 17. A Resolution was adopted by the City Council on September 13, 2016, authorizing a contract with AECOM to monitor and report groundwater contaminants, as ordered by the Los Angeles Regional Water Quality Control Board (LARWQCB) to accelerate removal of groundwater contaminants. Accelerated contaminant removal is progressing well and is expected to be completed by September 30, 2021.
On March 28, 2019, the Los Angeles County Department of Public Health (County) submitted an inspection report stating that one of the Park’s vapor monitoring sensors was detecting methane levels above the allowable threshold and asked the City to submit a Landfill Gas Control System Workplan to protect public health, safety, and the environment. The Fleet Services Bureau requested AECOM to implement a monitoring program to begin collecting landfill gas samples for two quarters to create a baseline measurement for various gas detection sensors. Once the baseline was established, AECOM developed a landfill ga...
Click here for full text