ATCP 76.15(2)(a)(a) Maximum concentration. Ozone generators shall provide a concentration of ozone in the return line to the pool not to exceed 0.1 mg/L. P ATCP 76.15(2)(b)(b) Electrically interlocked. The ozone generator shall be electrically interlocked with the recirculation pump to prevent the feeding of ozone when the recirculation pump is not operating. A flow sensor controller may also be used to turn off the feeder when flow is interrupted. P ATCP 76.15(2)(c)(c) Maximum ambient ozone level. Off-gassing of ozone may not result in ozone levels in the equipment room or pool area exceeding 0.1 ppm. P ATCP 76.15(3)(3) Ultraviolet light. Ultraviolet light units shall be certified to NSF 50, and tested and approved for use in water disinfection systems and installed pursuant to NSF 50 requirements. P ATCP 76.15(4)(4) Other technologies. Other technologies that inactivate or kill pathogens shall be certified and installed pursuant to NSF 50, manufacturer instructions, and have an EPA registration number, if applicable. P ATCP 76.15 HistoryHistory: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23. ATCP 76.16(1)(1) General requirement. Pool water shall be free of chemical, physical, and microbial substances known to be, or suspected of being, capable of creating toxic reactions or skin or membrane irritations. P ATCP 76.16(2)(2) Water clarity. Pool water shall be transparent and free from cloudiness. The main drain grating shall be readily visible from the pool deck, including the outline of the main drain and the main drain cover pattern. P ATCP 76.16(3)(a)(a) Sample collection and analysis. The department or its agent may collect samples of pool water for microbiological analysis in evaluating water quality. The analysis of water samples shall be performed by a laboratory accredited by the department. These monitoring activities may be supplemented with additional microbiological analysis, which shall be performed by an accredited laboratory certified in those methods.Pf ATCP 76.16 NoteNote: A list of accredited laboratories may be obtained by calling the department at (608)224-4712 or by email at www.datcp.state.wi.us. ATCP 76.16(3)(b)(b) Bacteriological standards. Water quality shall be maintained to meet the following standards: ATCP 76.16(3)(b)1.1. When bacteriological analysis of total coliforms, Staphylococcus aureus, Pseudomonas aeruginosa or Legionella pneumophila is performed, no detectable levels are present in a 100 milliliter sample. P Any approved method for each analyte may be reported as either colony forming units or most probable number. ATCP 76.16(3)(b)2.2. When bacteriological analysis is performed for the heterotrophic plate count, the total count may not exceed 200 colony forming units per milliliter (CFU/mL) in a 100 milliliter sample.Pf ATCP 76.16(3)(b)3.3. If a pool is closed due to a water sample that contains total coliforms pursuant to s. ATCP 76.30 (1) (b), the pool can be reopened when the pool system is properly working, the disinfectant or sanitizer concentration is maintained pursuant to s. ATCP 76.14 Table A, and any fecal accidents have been treated pursuant to s. ATCP 76.31. P ATCP 76.16 HistoryHistory: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23; correction in (4) made under s. 35.17, Stats., Register June 2023 No. 810. ATCP 76.17(1)(1) Approved. A test kit of a type approved by the department shall be maintained for testing the pool water pH; the disinfectant or sanitizer residual; the combined chlorine level, when chlorine is used; the total alkalinity; and the cyanuric acid concentration. The test kits shall meet the following specifications, as described in s. ATCP 76.17 Table A. Pf s. ATCP 76.17 Table A Required Test Kit Accuracy
and Increment ATCP 76.17(2)(2) Test reagents use and storage. Test kit reagents shall meet all of the following: ATCP 76.17(2)(a)(a) Stored. Stored in the original container or per manufacturer directions. Pf ATCP 76.17(2)(c)(c) Temperature range. Stored within the temperature range specified by the manufacturer for storage. Pf ATCP 76.17(2)(d)(d) Use. Used and properly disposed of before the expiration date. Pf ATCP 76.17(3)(3) Testing reagent technologies. The disinfectant or sanitizer testing reagent shall use one of the following technologies: ATCP 76.17(3)(a)(a) Method. Diethyl–p–phenylene diamine or DPD in powder or liquid form. A test kit using the titrimetric method, ferrous ammonium sulfate and diethyl–p–phenylene diamine or FAS-DPD for chlorine and bromine testing and colorimetric comparators used for additional water testing shall be approved by the department and shall provide for accurate comparison in the required range for each test pursuant to s. ATCP 76.14 Table A.Pf