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P-1001.1 Impervious Area Drainage
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All roofs exceeding 300 square feet, all paved areas exceeding 5000 square feet, all paved courts and all paved open shafts shall be drained to an approved point of disposal, except that for oneand two-family dwellings, and where approved, storm water is permitted to discharge onto flat areas such as lawns, provided that the storm water flows away from the building. All paved areas in excess of 5000 square feet and all open shafts shall be drained into a public storm-sewer system, an approved storm water management system or a public combined sewer system, to a point of disposal approved by the Department so as to:
- Protect the foundation of buildings from water damage;
- Prevent water accumulation on streets, sidewalks and other areas used for pedestrian or vehicular travel;
- Prevent water accumulation which may cause odors, the breeding of insects, or other health hazards;
- Prevent contamination of water supply systems.
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