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ATCP 76.14(3) (3)Gas chlorination cylinders. Gas chlorination cylinders shall be all the following:
ATCP 76.14(3)(a) (a) Upright. A cylinder shall be in an upright position and other container types shall be placed per manufacturer's instructions. Pf
ATCP 76.14(3)(b) (b) Chained. A cylinder shall be chained or strapped to a rigid support. Pf
ATCP 76.14(3)(c) (c) Moving cylinders. Cylinders may not be moved unless the protection cap is secured over the valve. Pf
ATCP 76.14(3)(d) (d) Tagged. An empty cylinder shall be tagged to indicate they are empty. Pf
ATCP 76.14(3)(e) (e) Valve. The cylinder valve shall be closed when in storage or empty. Pf
ATCP 76.14(4) (4)Chemical feeding. Disinfectant or sanitizer and filter aid feeding shall be conducted as follows:
ATCP 76.14(4)(a) (a) Positive displacement disinfectant or sanitizer feeding.
ATCP 76.14(4)(a)1. 1. Liquid chemicals shall be fed into water circulation piping or a surge tank or vacuum filter by means of a positive displacement feeder either at full strength or diluted.
ATCP 76.14(4)(a)2. 2. A 2-tank system shall be used, if calcium hypochlorite or another chemical that forms a residue is used. One tank shall be used for mixing the solution and settling the precipitate. The clear liquid shall be decanted or siphoned into the second tank for distribution. Pf
ATCP 76.14(4)(b) (b) Flow-through feeders. The chemical used, the manner of usage, and the quantity used in a flow-through feeder shall be as recommended by the feeder manufacturer. Pf
ATCP 76.14(4)(c) (c) Dry feeders. Feeders used for feeding dry chemicals into water circulation piping, a surge tank, or vacuum filter shall be maintained for proper operation. Pf
ATCP 76.14(5) (5)Chemical concentrations and residuals.
ATCP 76.14(5)(a) (a) Minimum disinfectant or sanitizer residuals. Minimum disinfectant or sanitizer residuals shall meet the requirements pursuant to s. ATCP 76.14 Table A. P
ATCP 76.14(5)(b) (b) Cyanurates. All the following apply:
ATCP 76.14(5)(b)1. 1. The water cyanuric acid concentration may not exceed 30 ppm. Pf
ATCP 76.14(5)(b)2. 2. The pool shall be closed pursuant to s. ATCP 76.30 (1) (j), if the cyanuric acid level is above 300 ppm. P
ATCP 76.14(5)(c) (c) pH control. The water's pH shall be maintained within a range of 7.2 to 7.8. P
ATCP 76.14(5)(d) (d) Alkalinity. The total alkalinity of pool water shall be maintained between 60 and 180 ppm as calcium carbonate unless it can be shown by the operator that another level of total alkalinity produces chemically balanced water based on calculations approved by the department. Pf
ATCP 76.14(5)(e) (e) Combined chlorine.
ATCP 76.14(5)(e)1.1. The operator shall develop and implement a plan to minimize combined chlorine in the pool. Pf
ATCP 76.14(5)(e)2. 2. The plan shall contain all the following components: Pf
ATCP 76.14(5)(e)2.a. a. The combined chlorine action level, taking into account monochloramine in the source water.
ATCP 76.14 Note Note: It is recommended that an action level of 0.4 ppm be used for combined chlorine for either breakpoint chlorination or water replacement or a combination of both to occur.
ATCP 76.14(5)(e)2.b. b. Volume of pool.
ATCP 76.14(5)(e)2.c. c. Range of volume of fresh source water added to pool each day.
ATCP 76.14(5)(e)2.d. d. Description of showering requirements and how communicated to patrons.
ATCP 76.14(5)(e)2.e. e. A record shall be maintained documenting combined chlorine test results, date and times breakpoint chlorination was performed, and any complaints of eye or respiratory irritation.
ATCP 76.14(5)(f) (f) Maximum chlorine residual. The maximum chlorine residual in any pool may not exceed 10 ppm. P
ATCP 76.14(5)(g) (g) Maximum total bromine. The maximum total bromine in a pool may not exceed 10 ppm. P
s. ATCP 76.14 Table A
Minimum disinfectant or sanitizer residuals
in parts per million (ppm) - See PDF for table PDF
ATCP 76.14(6) (6)Electronic monitoring devices.
ATCP 76.14(6)(a) (a) Water potential. When oxidation potential controllers are used the water potential shall be kept between 650-900 mV. In addition to the requirements pursuant to s. ATCP 76.18 (3), if the water potential reads below 650 mV or above 900 mV, the operator shall manually test the pool water with an approved test kit. Pf
ATCP 76.14(6)(b) (b) Free chlorine, or bromine. For a pool equipped with an approved and properly maintained electronic monitoring device to control the disinfectant or sanitizer level and pH, the available disinfectant or sanitizer residual shall meet the minimum requirements pursuant to s. ATCP 76.14 Table A, and be tested pursuant to s. ATCP 76.18 (3). Pf
ATCP 76.14 History History: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23.
ATCP 76.15 ATCP 76.15 Alternative or supplemental disinfection systems. Any one of the following alternative or supplemental systems may be added to a pool if an automated disinfection system is in place and on line to maintain the disinfectant or sanitizer residuals pursuant to s. ATCP 76.14 Table A. Pf
ATCP 76.15(1) (1)Chlorine generators.
ATCP 76.15(1)(a) (a) NSF 50. Chlorine generators, including salt systems, shall be certified and installed to NSF 50 and manufacturer instructions. Pf
ATCP 76.15(1)(b) (b) Disinfectant system on line. An additional disinfection system shall remain on line and able to automatically provide the capacity to superchlorinate the water and maintain the required sanitizer residual. P
ATCP 76.15(2) (2)Ozone generators.
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 History History: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23.
ATCP 76.16 ATCP 76.16 Water quality.
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) (3)Water sampling.
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 Note Note: 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(4) (4)Algae control. An algaecide may be used in a pool pursuant to ss. ATCP 29.50 (4) (b) 1. and 76.14 (2), according to the manufacturer's label directions. P
ATCP 76.16 History History: 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 ATCP 76.17 Water test kits.
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 - See PDF for table PDF
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)(b) (b) Replaced. Replaced as recommended by the manufacturer. 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
ATCP 76.17(3)(b) (b) Alternatives. Other photometric, electronic, or other technology that achieves the accuracy as described in s. ATCP 76.17 Table A, and measures analytes within the range pursuant to s. ATCP 76.14 Table A. Pf
ATCP 76.17 History History: CR 22-021: cr. Register June 2023 No. 810, eff. 9-24-23.
ATCP 76.18 ATCP 76.18 Water testing frequency.
ATCP 76.18(1)(1)All pools, except whirlpools, therapy, and excercise pools.
ATCP 76.18(1)(a)(a) pH and disinfectant or sanitizer. Except as provided under sub. (3), water shall be tested for pH and disinfectant or sanitizer residual at the following times:
ATCP 76.18(1)(a)1. 1. Daily before the pool is open to the public or before the pool is in use. Pf
ATCP 76.18(1)(a)2. 2. At least one other time during the day's peak patron load.Pf
ATCP 76.18(1)(b) (b) Combined chlorine. If chlorine is used, the water shall also be tested at least twice a week for the combined chlorine level. Pf
ATCP 76.18(1)(c) (c) Alkalinity. Water shall also be tested at least once a week for total alkalinity. Pf
ATCP 76.18(1)(d) (d) Cyanuric acid. If cyanuric acid is used in the water basin, the cyanuric acid concentration in the water shall be tested at least once a week. Pf
ATCP 76.18(2) (2)Whirpool, therapy, and exercise pools.
ATCP 76.18(2)(a) (a) pH and disinfectant or sanitizer. Except as provided under sub. (3), water shall be tested for pH and disinfectant or sanitizer residual at the following times:
ATCP 76.18(2)(a)1. 1. Before the pool is open to the public or before the pool is in use and at least 4 times daily. Pf
ATCP 76.18(2)(a)2. 2. Two of the tests shall be during the day's peak patron load.Pf
ATCP 76.18(2)(b) (b) Combined chlorine. When chlorine is used, the water shall be tested at least once daily for the combined chlorine level. Pf
ATCP 76.18(2)(c) (c) Alkalinity. Water shall be tested at least once a week for total alkalinity. Pf
ATCP 76.18(2)(d) (d) Cyanuric acid. When cyanuric acid is used in the water basin, the cyanuric acid concentration in the water shall be tested at least once a week. Pf
ATCP 76.18(3) (3)Electronic monitoring device. For a properly maintained electronic monitoring device installed to control pH and disinfectant or sanitizer, the operator shall:
ATCP 76.18(3)(a) (a) Frequency. Manually tested the pool at least once a day for pH and disinfectant or sanitizer residual with an approved test kit pursuant to s. ATCP 76.17 Table A. Pf
ATCP 76.18(3)(b) (b) Maintenance. Periodically monitor the device to determine if it meets operating criteria pursuant to s. ATCP 76.14 (5). Pf
ATCP 76.18(4) (4)Increased testing. The department or its agent may require more frequent testing if the testing logs are not maintained and the operator demonstrates a lack of active managerial control.Pf
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.