Memorandum
Date: July 21, 2026
To: The Honorable Lake County Board of Supervisors
From: Robin Borre, Special Districts Administrator
Subject: (Sitting as the Lake County Sanitation District Board of Directors) Approve Amendment No. 2 between the Lake County Sanitation District (LACOSAN) Northwest Wastewater Treatment Plant and Clearlake Oaks County Water District (CLOCWD) for the Acceptance of Effluent for Twenty-Five Years and authorize the Chair to sign
Executive Summary:
LACOSAN and CLOCWD entered into the Agreement for the Acceptance of Effluent dated July 21, 1998, to transport effluent from Northwest Wastewater Treatment Plant to the Clearlake Oaks County Water Plant and to the Geyser Pipeline at the Southeast Wastewater Treatment Plant. The original agreement was extended through Amendment No. 1.
Amendment No. 2 extends the term of the agreement for twenty-five years to coincide with the Geyser Agreement and updates some of the operation and maintenance section to include a mutual operation and maintenance understanding between LACOSAN - NW and CLOCWD.
This amendment assures that LACOSAN and CLOCWD will be able to continue to dispose of the effluent from the two wastewater plants through the Geyser Pipeline. This continued disposal method ensures that both plants continue to follow their NPDES permits and prevents possible issues that were experienced with the previous deposal method of land application. This agreement further benefits both districts to ensure additional costs are not incurred to repair the land application systems.
Environmental was completed under the original project that installed the pipelines and pumping systems. No additional environmental review is needed to extend the agreement.
All operation and maintenance expenses are included in the approved budget, and no additional funding is necessary to extend the agreement.
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Recommended Action: (Sitting as the Lake County Sanitation District Board of Directors) Approve Amendment No. 2 between the Lake County Sanitation District (LACOSAN) Northwest Wastewater Treatment Plant and Clearlake Oaks County Water District (CLOCWD) for the Acceptance of Effluent for Twenty-Five Years and authorize the Chair to sign.