Wastewater & Recycled Water

Supporting sustainable wastewater and recycled water management that protects water resources and meets evolving regulatory requirements. We provide technical, regulatory, and program management services that help public agencies optimize system performance, comply with permits, and expand water reuse opportunities.

Drone shot of an advanced water purification plant surrounded by trees.
Close-up of laboratory equipment used for water filtration, featuring beakers and faucets.

Core Services

Wastewater permit compliance and program support
Recycled water program planning and implementation
Regulatory strategy and technical assistance
Receiving water assessments
Source control and pollution prevention programs
Monitoring program development and data interpretation
Water quality planning and technical studies
Stakeholder coordination and regulatory agency support
Program evaluation and performance improvement

California's wastewater and recycled water programs are increasingly challenged to meet evolving regulatory requirements while supporting sustainable water resource management. EOA works with public agencies to develop practical, technically sound solutions that improve wastewater management, expand recycled water opportunities, and protect receiving waters. Our team provides regulatory, technical, and program management expertise to help clients navigate complex permitting requirements, optimize program performance, and support long-term water resource sustainability.

Highlighted Projects

Wastewater Treatment Plant Technical and Regulatory Services 

City of Sunnyvale Water Pollution Control Plant 

NPDES Permit Reissuance Technical Support 

East Bay Dischargers Authority (EBDA) 

Reverse Osmosis Concentrate

Valley Water (Santa Clara Valley Water District)
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