Mo. Code Regs. tit. 10 § 23-5.060
Current through Register Vol. 49, No. 23, December 2, 2024
Section 10 CSR 23-5.060 - Construction Standards for Open-Loop Heat Pump SystemsPURPOSE: The title of this rule is being amended because Closed-Loop Heat Pump Systems That Use Refrigerants as the Heat Transfer Fluid are no longer allowed and to improve readability by removing unnecessary language.
(1) Open-loop groundwater supply wells shall be constructed to domestic/multifamily well standards pursuant to 10 CSR 23-3.030(1) if it produces less than seventy (70) gallons per minute and to high yield well standards pursuant to 10 CSR 23-3.030(3) if it produces more than seventy (70) gallons of water per minute. Any well that was constructed before October 1987 that is utilized as the water supply or return for an open-loop heat pump system is exempt from these rules, except that the surface disposal of the water may be subject to other regulations.(2) Heat pump systems and surface disposal of used water may require a permit pursuant to 10 CSR 20-6.(3) Open loop water return wells shall be constructed to domestic/multifamily well standards pursuant to 10 CSR 23-3.030(1) if it produces less than seventy (70) gallons per minute and to high yield well standards pursuant to 10 CSR 23-3.030(3) if it produces more than seventy (70) gallons of water per minute. The depth of the return well shall be a similar depth as the supply well and the water must be returned to the same aquifer. The water return pipe must extend at least twenty feet (20') below the static water level. AUTHORITY: sections 256.606 and 256.626, RSMo 2000.* Emergency rule filed Nov. 16, 1993, effective 12/11/1993, expired 4/9/1994. Original rule filed Aug. 17, 1993, effective 3/10/1994. Amended: Filed Nov. 1, 1995, effective 6/30/1996. Amended: Filed May 17, 2013, effective 12/30/2013. Amended by Missouri Register January 15, 2019/Volume 44, Number 2, effective 2/28/2019*Original authority: 256.606, RSMo 1991 and 256.626, RSMo 1985, amended 1991.