| (L) Operational records detailing the amount of water
hauled, purchases, microbiological sampling results, chlorine residual
readings, dates of disinfection, and source of water shall be maintained.
(j) If a structure is connected to a public water supply
system and has a rainwater harvesting system, the structure must have
appropriate cross-connection safeguards in accordance with subsection
(h)(1) of this section.
(1) A privately owned rainwater harvesting system with
a capacity of more than 500 gallons that is connected to a public
water system for a back-up supply shall have a backflow prevention
assembly or an air gap installed at the storage facility for the harvested
rainwater to ensure physical separation between the rainwater harvesting
system and the public water system.
(2) At each residence or facility where water from
a rainwater harvesting system is used for potable purposes and there
is a connection to a public water system, the public water system
shall ensure that the rainwater harvesting system is installed and
maintained by a master plumber or journeyman plumber licensed by the
Texas State Board of Plumbing Examiners and who holds an endorsement
issued by the Texas State Board of Plumbing Examiners as a Water Supply
(3) A person who intends to connect a rainwater harvesting
system to a public water system must give written notice of that intention
to the municipality or the owner or operator of the public water system
in which the rainwater harvesting system is located.
(4) The public water system used as a back-up supply
for the rainwater harvesting system may be connected only to the water
storage tank and may not be connected to the plumbing of a structure.
|Source Note: The provisions of this §290.44 adopted to be effective October 1, 1992, 17 TexReg 6455; amended to be effective November 3, 1995, 20 TexReg 8620; amended to be effective March 3, 1997, 22 TexReg 1809; amended to be effective February 4, 1999, 24 TexReg 731; amended to be effective September 13, 2000, 25 TexReg 8880; amended to be effective May 16, 2002, 27 TexReg 4127; amended to be effective February 19, 2004, 29 TexReg 1373; amended to be effective January 9, 2008, 33 TexReg 198; amended to be effective October 16, 2008, 33 TexReg 8533; amended to be effective December 10, 2009, 34 TexReg 8744; amended to be effectiveSeptember 12, 2013, 38 TexReg 5880; amended to be effective February 20, 2014, 39 TexReg 994; amended to be effective July 30, 2015, 40 TexReg 4769