Legislation Details

File #: 2026-5040    Version: 1 Name:
Type: Consent Status: Final
File created: 8/5/2026 In control: ADMINISTRATION COMMITTEE
On agenda: 9/9/2026 Final action:
Title: ENVIRONMENTAL REGULATORY REPORTS
Sponsors: Lan Wiborg
Attachments: 1. Agenda Report, 2. Annual Biosolids Mgmt Compliance Report CY 2025, 3. Annual Pretreatment Program Report FY 2025, 4. Semi-Annual Pretreatment Program Report (Jul - Dec 2025), 5. P1 Annual Greenhouse Gas Emissions Report CY 2025, 6. P2 Annual Greenhouse Gas Emissions Report CY 2025, 7. P1 Annual Air Quality Emissions Report CY 2025, 8. P2 Annual Air Quality Emissions Report CY 2025, 9. Annual Marine Monitoring Report FY 2025
FROM: Robert Thompson, General Manager
Originator: Lan C. Wiborg, Director of Environmental Services

SUBJECT:

title
ENVIRONMENTAL REGULATORY REPORTS
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GENERAL MANAGER'S RECOMMENDATION

recommendation
RECOMMENDATION: Recommend to the Board of Directors to:

Receive and file the following environmental regulatory reports: Annual Biosolids Management Compliance Report CY 2025, Annual Pretreatment Program Report FY 2025 (July 2024-June 2025), Semi-Annual Pretreatment Program Report (July-December 2025), Annual Mandatory Reporting of Greenhouse Gas Emissions Reports CY 2025, Annual Air Quality Emissions Reports CY 2025, and the Annual Marine Monitoring Report FY 2025 (July 2024-June 2025).
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BACKGROUND

The Orange County Sanitation District (OC San) is subject to environmental regulatory oversight by the Environmental Protection Agency (EPA), Regional Water Quality Control Board (RWQCB), California Air Resources Board (CARB), South Coast Air Quality Management District (SCAQMD), and Arizona Department of Environmental Quality (ADEQ). These regulatory bodies require reporting, which is prepared by OC San’s Environmental Services Department. These reports include:

Annual Biosolids Management Compliance Report required by OC San’s National Pollutant Discharge Elimination System (NPDES) permit for ocean discharge. Due February 19th of every year. Reporting based on calendar year.

Annual and Semi-Annual Pretreatment Program Reports required by OC San’s NPDES permit. Due March 31st and October 31st of every year. Reporting based on fiscal year.

Annual Mandatory Reporting of Greenhouse Gas Emissions required by CARB. This report uses an online portal for report preparation and submission. Due April 10th of every year. Reporting based on calendar year.

Annual Air Quality Emissions Report required by SCAQMD. Due March of every year (exact date varies). Reporting based on calendar year.


Annual Marine Monitoring Report required by OC San’s NPDES...

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