Chlorine Water

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Fact Sheet
Disposing of Chlorinated
Water from Swimming Pools and Hot Tubs
Water from swimming pools and hot tubs often contains high levels of chlorine. Discharging chlorinated pool or spa water into streams, (or irrigation canals, ponds, etc.) is harmful to fish and other aquatic life. DEQ developed this fact sheet to provide you with management practices that will minimize the impact of chlorinated water discharged from swimming pools and hot tubs. The following ‘Best Management Practices’ apply to water discharged from swimming pools and hot tubs:
Send it to the treatment plant
Discharging chlorinated water from pools and hot tubs to the sanitary sewer (sewage treatment plant) is the best option. Chlorinated water, particularly from large pools such as community swimming pools, should not be discharged into storm sewers or surface waters.
Irrigate safely and responsibly
When discharge to a sanitary sewer is not possible either because it is unavailable or not allowed, then chlorinated water from pools and hot tubs may be disposed on the ground or irrigated on your property under the following circumstances:
• Prior to disposing or irrigating the water, either shut off the chlorination system or stop adding chlorine, depending on your situation.
• Hold the water in the pool or hot tub for at least one week to reduce the chlorine level.
• Discharge or irrigate the water in an area where the water will not flow into a stream or storm sewer.
• Discharge or irrigate the water on your property and ensure that it does not flow off your property.
• Discharge or irrigate the water in a manner that will prevent nuisance conditions (such as creation of odors, and fly and mosquito breeding conditions). Nuisance conditions often occur when water is ponded for a prolonged period.
If discharge to a sanitary sewer or land irrigation of chlorinated water from pools…...

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