On-Site Sewage Facility Rules Compilation

1 Revised May 2017 RG-472 On-Site Sewage Facility Rules Compilation Health and Safety Code, Chapter 366 On-Site Sewage Disposal Systems (Updated February 7, 2017) On-Site Sewage Facilities, Title 30, TAC Chapter 285 (Effective December 29, 2016) Occupational Licenses and Registrations, Title 30, TAC Chapter 30, Subchapters A and G (Effective September 29 , 2016) printed on recycled paper Office of Compliance and Enforcement TEXAS COMMISSION ON ENVIRONMENTAL QUALITY On-Site Sewage Facility Rules Compilation Prepared by Office of Compliance and Enforcement < > RG-472 May 2017 iiPublished and distributedby theTexas Commission on Environmental Box 13087 Austin TX 78711-3087 Bryan W.

2 Shaw, , , ChairmanToby Baker, CommissionerJon Niermann, CommissionerRichard A. Hyde, , Executive DirectorWe authorize you to use or reproduce any original material contained in this publication that is, any material we did not obtain from other sources. Please acknowledge the TCEQ as your of this publication are available for public use through the Texas State Library, other state depository libraries, and the TCEQ Library, in compliance with state depository law. For more information on TCEQ publications visit our website TCEQ is an equal opportunity employer.

3 The agency does not allow discrimination on the basis of race, color, religion, national origin, sex, disability, age, sexual orientation or veteran status. In com-pliance with the Americans with Disabilities Act, this document may be requested in alternate formats by contacting the TCEQ at 512-239-0010 or 1-800-RELAY-TX (TDD), or by writing Box 13087, Austin, TX is our customer service? May 2017 iii Contents Introduction .. 1 Health & Safety Code, Chapter 366 On-Site Sewage Disposal Systems (Updated February 7, 2017).

4 5 Subchapter A. General Provisions .. 7 Subchapter B. General Powers and Duties of Commission and Authorized Agents .. 9 Subchapter C. Designation of Local Governmental Entity as Authorized Agent .. 12 Subchapter D. Permits; Fees .. 14 Subchapter E. Registration Of Installers .. 20 Subchapter F. Penalties .. 20 On-Site Sewage Facilities Title 30, TAC Chapter 285 (Effective December 29, 2016) .. 23 Subchapter A. General Provisions ( ) .. 27 Subchapter B: Local Administration of the OSSF Program ( ) .. 43 Subchapter C: Commission Administration of the OSSF Program In Areas Where No Authorized Agent Exists ( , ).

5 49 Subchapter D: Planning, Construction, and Installation Standards For OSSFs ( ) .. 50 Subchapter E: Special Requirements For OSSFs Located In The Edwards Aquifer Recharge Zone ( ) .. 78 Subchapter F: Licensing and Registration Requirements for Installers, Apprentices, Designated Representatives, site Evaluators, Maintenance Providers, and Maintenance Technicians ( , ) .. 80 Subchapter G: OSSF Enforcement ( , ) .. 87 Subchapter H: Disposal of Graywater ( , ) .. 88 Subchapter I: Appendices ( , ) .. 92 Occupational Licenses and Registrations, Title 30, TAC Chapter 30, Subchapters A and G, (Effective September 29, 2016).

6 125 Subchapter A. Administration of Occupational Licenses and Registrations .. 126 Subchapter G. On-Site Sewage Facilities Installers, Apprentices, Designated Representatives, Maintenance Providers, Maintenance Technicians, and site Evaluators (OSSF) .. 151 iv Revised May 2017 Revised May 2017 1 Introduction On December 7, 2016, the Texas Commission on Environmental Quality adopted changes to the On-Site Sewage Facility (OSSF) Rules . You are encouraged to read and familiarize yourself with the updated rule requirements.

7 The changes are briefly summarized here: Section (b) adds a requirement that a graywater reuse system must also comply with Chapter 210, Subchapter F since the Rules for those systems have been moved to that chapter. Section (d) requires existing graywater systems to continue to comply with the Rules as the Rules existed when the graywater system installation was completed. Any alterations to existing graywater systems must meet the requirements of the current Rules . Section (e) prohibits a reduction to OSSFs when using graywater reuse systems unless the OSSF meets the requirements of No reduction in the size of the OSSF will be allowed when using a graywater reuse system unless the OSSF meets all of the conditions and requirements of Section (f) allows only OSSFs permitted for graywater to be connected to a graywater or combined reuse system .

8 The rule allows a combined reuse system to be connected to an OSSF permitted for graywater only and requires the alternative onsite water to be diverted prior to the connection. The rule prohibits an alternative water reuse system from being connected to an OSSF. The rule provides the piping requirements for connecting graywater to an OSSF. Section (a) clarifies that graywater and combined reuse systems are authorized without a permit. However, OSSFs which are reduced based on the presence of a graywater or combined reuse system require a permit and submission of planning materials.

9 This subsection also clarifies that this section and the associated OSSF reduction only applies to single family residences. Section (b) provides the potential allowable sizing reduction to the OSSF disposal field. Section (c) requires a qualified professional plumber to document which Sewage sources will be entering the OSSF. The evaluation of the plumbing should occur after the plumbing is installed. Section (d) provides the design organic strength of the wastewater entering the OSSF. On-Site Sewage Facility Rules Compilation TCEQ publication RG-472 2 Revised May 2017 Sections (e) and (f) outline the professional qualifications needed to demonstrate that the treatment system will treat the incoming wastewater to the required levels.

10 Section (g) requires property owners to set aside an area for future OSSF expansion should the property owner abandon the graywater or combined reuse system at a later date or if required by the OSSF permitting authority to expand the OSSF. The area must meet the setbacks required by (10) and shall not be used for surface improvements. Section (h) prohibits property owners from applying graywater or alternative onsite water to the surface of their reduced OSSF disposal field. This action can overload the OSSF disposal area.