Stormwater Capture, Management and Permit Compliance

EKI delivers integrated stormwater capture, management, and regulatory compliance services that advance One Water objectives and strengthen long-term water supply resilience. We help clients manage stormwater not only as a regulatory obligation, but as a valuable local resource that can support groundwater recharge, reduce reliance on imported supplies, improve water quality, and enhance watershed health.

EKI provides comprehensive support for compliance with the National Pollutant Discharge Elimination System (NPDES) and associated Waste Discharge Requirements (WDR), including Small Municipal Separate Storm Sewer System (MS4) permits. Our tailored compliance strategies align state and federal requirements with local priorities and integrate stormwater management into broader water resources planning efforts. Services include preparation of annual reports; public education and outreach programs; technical analyses to support field inspections; development of illicit discharge detection and elimination (IDDE) programs; and implementation of construction and post-construction best management practices (BMP).

Beyond compliance, EKI specializes in the planning and design of stormwater capture and infiltration projects that contribute to diversified, climate-resilient water supplies. Our team conducts robust desktop and field-based evaluations to identify and prioritize feasible capture opportunities using the best available hydrologic, geologic, land use, and water quality data. We develop locally and regionally applicable screening criteria, evaluate recharge and water supply benefits, and ensure alignment with groundwater sustainability goals, flood management objectives, and watershed-scale planning initiatives.

Through community and stakeholder engagement, EKI helps clients build local support for stormwater projects that deliver multiple benefits, including enhanced water supply reliability, reduced pollutant loads, improved flood protection, and healthier urban and natural systems. By integrating stormwater management into a One Water approach, EKI supports practical, implementable solutions that maximize the value of every drop.