California Code of Regulations
Title 23 - Waters
Division 4 - Regional Water Quality Control Boards
Chapter 1 - Water Quality Control Plans, Policies, and Guidelines
Article 8 - Santa Ana Region
Section 3970 - Exemption Criteria for Septic Systems Prohibition

Universal Citation: 23 CA Code of Regs 3970
Current through Register 2024 Notice Reg. No. 38, September 20, 2024

This amendment to the Water Quality Control Plan for the Santa Ana Region (Basin Plan) revises the requirements and exemption criteria for use of septic tank subsurface disposal systems on lots smaller than one-half acre, set forth in an earlier amendment. Specifically, this amendment (1) clarifies the calculation of gross project area, (2) clarifies the definition of new development, (3) allows for replacement of outdated systems, (4) establishes flow rates for commercial and industrial facilities, (5) sets minimum distances from the nearest sewer in the exemption criteria, (6) establishes an off-set program, and (7) provides for review of alternative treatment technologies.

1. New article 8 and section filed 6-23-94; operative 6-23-94. Resolution No. 93-40 adopted by Santa Ana Regional Water Quality Control Board 7-16-93. Resolution No. 93-95 adopted by State Water Resources Control Board 9-23-93. Approved by OAL pursuant to Government Code section 11353 (Register 94, No. 25).

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