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6 <br /> Swimming Pool and Spa Cleaning and <br /> Maintenance <br /> Despite the fact that we immerse ourselves in it, the water from pools and spas is far from chemically <br /> clean. Nutrients,pH, and chlorine can adversely affect fish and wildlife in water bodies. Following these <br /> BMPs will ensure the cleanliness of your pool and the environment. <br /> Required BMPs <br /> • Pool and spa water must be dechlorinated to 0.1 mg/L if it is to be emptied into a ditch or to <br /> the stormwater drainage system. Contact your pool chemical supplier to obtain the <br /> neutralizing chemicals you will need. The rate of flow into the ditch or drainage system must <br /> be regulated so that it does not cause problems such as erosion, surcharging, or flooding. <br /> Water discharged to the ground or a lawn must not cross property lines and must not produce <br /> runoff. <br /> • If pool and spa water cannot be dechlorinated, it must be discharged to the sanitary sewer. <br /> Prior to draining,your local sewer provider must be notified to ensure they are aware of the <br /> volume of discharge and the potential effects of chlorine levels. A pool service company can <br /> help you determine the frequency of cleaning and backwash of filters. <br /> • Diatomaceous earth used in pool filters cannot be disposed of in surface waters, on the <br /> ground, or into stonnwater drainage systems or septic systems. Dry it out as much as <br /> possible,bag it in plastic,and dispose of at the landfill. <br /> Suggested BMPs <br /> Hire a professional pool service company to collect all pool water for proper disposal. Make sure to ask <br /> them where they will dispose of it and the kind of permits they hold to do so. <br /> 16 <br />