Any activity which discharges material or liquids into sanitary sewers shall conform with all federal, State and local discharge and release regulations. City and County sanitation ordinances may also apply. All storage areas, waste disposal areas, and trash handling facilities shall be designed to prevent wind blown debris from leaving the site. The drainage of waste or stored materials onto adjacent properties or directly into creeks and watercourses or into the stormwater conveyance system is prohibited. Only uncontaminated stormwater runoff may be discharged into the stormwater conveyance system.