Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 55-89 - Food, Lodging, and Recreation Safety
Chapter ATCP 76 - Safety, Maintenance, and Operation of Public Pools and Water Attractions
Subchapter III - Water Treatment Systems and Water Quality
Section ATCP 76.18 - Water testing frequency
Universal Citation: WI Admin Code ยง ATCP 76.18
Current through August 26, 2024
(1) ALL POOLS, EXCEPT WHIRLPOOLS, THERAPY, AND EXCERCISE POOLS.
(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:
1. Daily before the pool is open to the
public or before the pool is in use.
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2. At least one other time during the day's
peak patron load.
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(b)
Combined chlorine. If
chlorine is used, the water shall also be tested at least twice a week for the
combined chlorine level.
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(c)
Alkalinity. Water shall
also be tested at least once a week for total alkalinity.
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(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.
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(2) WHIRPOOL, THERAPY, AND EXERCISE POOLS.
(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:
1. Before the pool is open to the public or
before the pool is in use and at least 4 times daily.
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2. Two of the tests shall be during the day's
peak patron load.
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(b)
Combined chlorine. When
chlorine is used, the water shall be tested at least once daily for the
combined chlorine level.
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(c)
Alkalinity. Water shall
be tested at least once a week for total alkalinity.
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(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.
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(3) ELECTRONIC MONITORING DEVICE. For a properly maintained electronic monitoring device installed to control pH and disinfectant or sanitizer, the operator shall:
(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.
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(b)
Maintenance.
Periodically monitor the device to determine if it meets operating criteria
pursuant to s. ATCP 76.14 (5).
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(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
This section is created eff. 9-24-23 by CR 22-021.
Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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