Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 285 - ON-SITE SEWAGE FACILITIES › Subchapter H - DISPOSAL OF GRAYWATER › Section 285.80 - General Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) For the
				  purpose of this chapter, graywater is defined as wastewater from showers;
				  bathtubs; handwashing lavatories; sinks that are used for disposal of household
				  or domestic products; sinks that are not used for food preparation or disposal;
				  and clothes-washing machines. Graywater does not include wastewater from the
				  washing of material, including diapers, soiled with human excreta or wastewater
				  that has come in contact with toilet waste.
(b) Construction of a graywater reuse system,
				  including storage and disposal systems, must comply with this chapter; Chapter
				  210, Subchapter F of this title (relating to Use of Graywater and Alternative
				  Onsite Water); and any more stringent requirements of the local permitting
				  authority. For the purposes of this subchapter, a graywater reuse system begins
				  at the graywater stub-out of a single family dwelling.
(c) A graywater reuse system must not create
				  a nuisance or damage the quality of surface water or groundwater. If a
				  graywater reuse system creates a nuisance, threatens human health, or damages
				  the quality of surface water or groundwater, the permitting authority may take
				  action under §
										285.71
				  of this title (relating to Authorized Agent Enforcement of OSSFs).
(d) A graywater reuse system shall comply
				  with the requirements of this subchapter as they existed on the date
				  installation was completed. The previous version of this subchapter is
				  continued in effect for this purpose. Any alterations to an existing system
				  must comply with this chapter; Chapter 210, Subchapter F of this title; and any
				  more stringent requirements of the local permitting authority.
(e) No reduction in the size of the on-site
				  sewage facility (OSSF) will be allowed when using a graywater reuse system
				  unless the OSSF meets all of the conditions and requirements of §
										285.81
				  of this title (relating to Requirements and Conditions for Potentially Reducing
				  the Size of an OSSF Disposal System for a Single Family Residence with a
				  Graywater Reuse System or a Combined Reuse System).
(f) If the OSSF is not a reduced OSSF as
				  described in §
										285.81
				  of this title, the graywater from either a graywater reuse system or a combined
				  reuse system authorized under Chapter 210, Subchapter F of this title may, be
				  connected to the OSSF to dispose of the graywater during periods when graywater
				  is not being reused. If the reuse system is a combined reuse system as defined
				  under Chapter 210, Subchapter F of this title, the flows from alternative
				  onsite water sources must be diverted and shall not be allowed to enter the
				  OSSF. Alternative water reuse systems as defined in Chapter 210, Subchapter F
				  of this title, shall not be connected to the OSSF as OSSFs are not authorized
				  nor designed to treat or dispose of flows from alternative onsite water
				  sources. The piping connecting the graywater to the OSSF shall meet the
				  applicable requirements of Subchapter D of this chapter (relating to Planning,
				  Construction, and Installation Standards for OSSFs).