Note: If your facility was approved and built on or before August 27, 2008, and designed under 30 TAC Chapter 317, follow those rules for operation and maintenance only, not for a new design. SUBCHAPTER L - ULTRAVIOLET LIGHT DISINFECTIONĪlso see Wastewater System Design: Requirements.SUBCHAPTER G - FIXED FILM AND FILTRATION UNITS.SUBCHAPTER F - ACTIVATED SLUDGE SYSTEMS.SUBCHAPTER E - PRELIMINARY TREATMENT UNITS.SUBCHAPTER D - ALTERNATIVE COLLECTION SYSTEMS.SUBCHAPTER C - CONVENTIONAL COLLECTION SYSTEMS.SUBCHAPTER B - WASTEWATER TREATMENT FACILITY DESIGN REQUIREMENTS.SUBCHAPTER A - ADMINISTRATIVE REQUIREMENTS.(Adopted on August 28, 2008, revised December 4, 2015) These standards are established in Title 30, Texas Administrative Code, (30 TAC), Chapter 217. Chapter 217 Design Criteria for Systems and Processes
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