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  2. NPDES Permits Around the Nation

CA0000018: Vessel Testing a Pilot OceanWell off the Coast of California in Federal Waters

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Return to: NPDES Permits in California (excluding Tribal Permits)

  • Proposed Issuance of NPDES Permit for Vessel Testing a Pilot OceanWell off the Coast of California in Federal Waters and CWA §401 Water Quality Certification

    EPA Region 9 is issuing notice of proposed action under the Clean Water Act (CWA) to issue a NPDES permit for the Vessel Testing a Pilot OceanWell located off the coast of California in federal waters under NPDES Permit No. CA0000018.

    • Comments Due Date: May 27, 2025
    • Geographic Locations: Southwest, California

Documents related to proposed issuance of NPDES Permit No. CA0000018 for Vessel Testing a Pilot OceanWell located off the coast of California in federal waters. The permit proposes to authorize freshwater and brine intermittent discharges from a desalination module into the Pacific Ocean.

Permittee Name: Mark Golay
Permittee Address: 1300 El Camino Real, Suite 100, Menlo Park, CA 94025
Facility Name: Vessel Testing a Pilot OceanWell
Facility Location: Six test sites in federal waters off the California coast
Facility Rating: Minor

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  • [DRAFT] NPDES Permit No. CA0000018: Vessel Testing a Pilot OceanWell off the Coast of California (pdf) (669.15 KB, April 18, 2025)
    DRAFT National Pollutant Discharge Elimination System (NPDES) Permit No. CA0000018 for Vessel Testing a Pilot OceanWell off the Coast of California.
  • [DRAFT] NPDES Permit Fact Sheet: Vessel Testing a Pilot OceanWell off the Coast of California (pdf) (330.21 KB, April 23, 2025)
    DRAFT EPA Fact Sheet for National Pollutant Discharge Elimination System (NPDES) Permit No. CA0000018 for Vessel Testing a Pilot OceanWell off the Coast of California.
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Last updated on April 25, 2025
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