Swimming Pools and Hot Tubs
Preventing Chlorinated Water Discharges from Residential Swimming Pools and Spas
Why should I be concerned?
Water from swimming pools and hot tubs (spas) can contain high levels of chlorine, bromine, and copper. It is also very corrosive due to low pH levels and may contain organic matter. These are water quality issues that can harm fish and aquatic life if untreated pool or spa water is discharged into the storm water or local water bodies. Unauthorized discharges are prohibited.
Can I discharge my pool or spa water into my yard?
Yes, but only if tests show that the water is de-chlorinated (a concentration of less than 0.1 ppm of chlorine is recommended). The water should be directed onto a vegetated surface to promote infiltration. The discharge should not flow onto any other person's property or create nuisance conditions such as erosion or pooling for a prolonged period.
How can I get rid of chlorine?
Once chlorine additions are stopped and if the water is left exposed to air, chlorine will naturally dissipate in three to five days, so that pool or spa water will become de-chlorinated over time. De-chlorinating chemicals from pool or spa suppliers can also be used to rid the water of chlorine more quickly.
Can my de-chlorinated pool or spa water be discharged to the storm sewer system?
All measures should be taken to discharge to the ground. If it is not possible to discharge pool or spa water to the ground surface, please contact the Public Works Department at (651) 459-3730 to discuss the best alternative for discharge. Please do not discharge pool or spa water into the storm water system.
Can my de-chlorinated pool or spa water be discharged to the sanitary sewer system?
Again, all measures should be taken to discharge to the ground. If it is not possible, contact the Public Works Department at (651) 459-3730 to discuss the best alternative for discharge. Please do not discharge pool or spa water into the sanitary water system.
Can my pool or spa water be discharged into my individual sewage treatment (septic) system?
No, the large volume of water can reduce treatment efficiency and can cause other significant problems (i.e. flush solids into the drain field, create a surface outbreak of sewage, etc.).