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Environmental Management

Feasibility Study for Renewable Energy Technologies at the Lorton Energy Park

2026-05-26T08:35:53-06:00October 23rd, 2020|

ESI’s long-term vision is for the landfill property to transition over the remainder of its operational and post-closure life from a landfill disposal facility to a state-of-the-art renewable energy park. To extend the operational life of the Lorton Landfill, ESI plans to increase the disposal capacity by constructing a mechanically stabilized earth (MSE) berm around the perimeter of the landfill footprint. They retained Geosyntec to conduct a detailed feasibility study on the phased implementation of various renewable energy technologies (RETs) in conjunction with the planned expansion. The purpose of the feasibility study was to evaluate the technical and financial feasibility, aesthetic qualities, and regulatory and public acceptability of four RETs: solar, wind, biogas methane, and geothermal (GT) technologies. The feasibility study provides the basis for financial planning for developing the renewable energy park, particularly with regard to the optimal timing for deployment of RETs.

Construction Stormwater Services in California

2026-05-26T08:37:56-06:00October 9th, 2020|

Southern California Edison (SCE) is one of the largest electric utilities in California, serving more than 14 million people in a 50,000 square-mile service area of central, coastal, and southern California.As a result of a broader awareness of water quality impacts, a new phase of laws and regulations have evolved in which permit requirements are highly dynamic, administration is more complex, and enforcement is more aggressive. SCE is on the front line in its pursuit to move beyond environmental compliance and to identify opportunities for continued performance improvement. The project objectives are to provide water quality planning, technical analysis, permitting, inspections, engineering design, quality assurance, and related environmental services.

San Diego Gas and Electric (SDG&E) Fire Risk Mitigation Geologic and Geotechnnical Evaluations

2026-05-26T08:38:49-06:00October 9th, 2020|

San Diego Gas & Electric Company’s (SDG&E) Fire Risk Mitigation (FiRM) initiative was developed to proactively address fire risk by hardening critical circuits within service areas most at risk for wildfires.SDG&E is replacing existing high-risk circuits and wood distribution poles susceptible to fire or wind damage, and new foundation excavations will be drilled to set the replacement steel distribution poles.

Malibu Creek TMDL and North Santa Monica Bay Regional Watershed Implementation Plan

2026-05-26T08:54:35-06:00August 14th, 2020|

The Malibu Creek Total Maximum Daily Loads (TMDL) addresses bacteria water quality impairments in the Malibu Creek Watershed. The TMDL is consistent with the Santa Monica Bay Beaches Bacteria TMDL, which was approved by the United States Environmental Protection Agency (EPA).

Broadway Neighborhood Stormwater Project

2026-05-26T08:55:42-06:00August 14th, 2020|

The Broadway Neighborhood Stormwater Greenway Project was identified through the Central and West Coast Basins Distributed and Regional Stormwater Capture Feasibility Study as an ideal local project for immediate implementation of neighborhood-wide Low Impact Development (LID) designs aimed at meeting total maximum daily loads (TMDL) and recharging potable groundwater aquifers.

Green Stormwater Infrastructure Planning and Technical Support

2026-05-26T08:56:23-06:00August 14th, 2020|

City of Dublin is one of more than 70 Permittees under the San Francisco Bay Municipal Regional Stormwater Permit (MRP). The MRP requires that permittees develop green stormwater infrastructure (GSI) plans that summarize proposed private GSI (i.e., required as part of new/re-development provisions) and proposed public GSI retrofits.

Reasonable Assurance Analysis: Guidance and Source Control Load Reduction Accounting

2026-05-26T08:57:52-06:00August 14th, 2020|

Bay Area Municipal Regional Permit (MRP) Provision C.3.j required the Permittees to develop a Green Infrastructure (GI) Plan for inclusion in their Annual Report. MRP Provisions C.11.c and C.12.c require the Permittees to prepare a Reasonable Assurance Analysis (RAA) for inclusion in the their Annual Report that quantitatively demonstrates that mercury load reductions of at least 10 kg/yr and PCBs load reductions of at least 3 kg/yr will be achieved by 2040 through implementation of GI throughout the MRP area.

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