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As leaders in the successful development of municipal and industrial stormwater management programs since the inception of stormwater regulations in the early 1990s, we’ve had the pleasure of assisting numerous public agencies and private entities throughout California. Our innovative strategies and practical approaches to stormwater management have helped our clients not only consistently achieve compliance with challenging National Pollutant Discharge Elimination System (NPDES) requirements, but also earn awards at the national and State levels. Our stormwater management services areas include:

  • New and redevelopment controls, including Green Stormwater Infrastructure
  • Municipal operations and maintenance
  • Industrial and commercial facilities
  • Illicit discharge controls
  • Pesticide management
  • Trash/litter management
  • Public outreach and education

We also provide a variety of technical support and project management assistance on Pollutant Control Programs and Water Quality Monitoring & Assessment programs.


CASE STUDIES


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Municipal Stormwater Management and NPDES Permit Compliance
Santa Clara Valley Urban Runoff Pollution Prevention Program (SCVURPPP)

In 1997, EOA was retained by SCVURPPP to serve as Program management staff and provide assistance with the institutional, regulatory, fiscal, and technical aspects of implementing the Program’s Urban Runoff Management Plan (URMP). The firm’s relationship with SCVURPPP has continued ever since. Program management tasks have included:

  • regulatory liaison with the Water Board
  • budget management
  • policy development
  • technical guidance on monitoring, watershed, and new development programs
  • liaison with other California programs
  • serving as a Board member of the Bay Area Stormwater Management Agencies Association (BASMAA) and a Board member of the California Stormwater Quality Association (CASQA) 

EOA staff prepares the Program’s annual work plans and annual reports. We also develop and help implement pollutant-specific work plans required by the Program’s permit. EOA has helped the Program develop two new performance standards (for pesticide management and rural public works activities) and revise five existing standards. EOA also prepared and submitted two permit application packages for re-issuance of SCVURPPP’s NPDES permit, one in 1999 and one in 2005. EOA staff conducts two to four training workshops per year and produces numerous guidance documents to help Co-permittees comply with permit requirements. For example, EOA staff recently completed a handbook for implementing stormwater requirements for new and redevelopment, and developed a hydromodification management plan with performance criteria and guidance on flow controls to reduce erosion in streams. Staff also manages countywide public information and outreach efforts, including an ongoing media campaign called “Watershed Watch”, and implements the annual monitoring work plan.


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Municipal Stormwater Management and NPDES Permit Compliance
San Mateo Countywide Water Pollution Prevention Program (SMCWPPP)

Since 1993, EOA has assisted the San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) and its 21 municipalities to implement the requirements of its municipal stormwater NPDES permit. Two of the important areas where assistance has been provided are monitoring and special studies and the use of integrated pesticides management (IPM). EOA assisted SMCWPPP to develop a model IPM policy that the municipalities have adopted. EOA has facilitated meetings of the Countywide Program’s Parks Maintenance and IPM Work Group to discuss IPM and parks maintenance topics. This assistance has included working with parks maintenance staff and IPM practitioners to highlight the innovative use of IPM at the work group’s annual training workshops, which typically draw more than 70 municipal staff.