10/19/2019 Annual Town Meeting - Laserfiche WebLink

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C. Obstruction of Municipal Storm Drain System. No person shall obstruct or interfere with the normal flow of stormwater into or out of the municipal storm drain system without prior written approval from the DPW. 85 - 8. Exemptions A. Discharge or flow resulting from firefighting activities. B. The following non-stormwater discharges or flows are exempt from the prohibition of non- stormwaters provided that the source is not a significant contributor of a pollutant to the municipal storm drain system: 1) Waterline flushing; 2) Flow from potable water sources; 3) Springs; 4) Natural flow from riparian habitats and wetlands; 5) Diverted stream flow; 6) Rising groundwater; 7) Uncontaminated groundwater infiltration as defined in 40 CFR 35.2005(20), or uncontaminated pumped groundwater; 8) Water from exterior foundation drains, footing drains (not including active groundwater dewatering systems), crawl space pumps, or air conditioning condensation; 9) Discharge from landscape irrigation or lawn watering; 10) Water from individual residential car washing; 11) Discharge from dechlorinated swimming pool water (less than one ppm chlorine) provided the water is allowed to stand for one week prior to draining and the pool is drained in such a way as not to cause a nuisance; Discharge from street sweeping; 12) Dye testing,provided verbal notification is given to the DPW prior to the time of the test; 13) Non-stormwater discharge permitted under an NPDES permit or a Surface Water Discharge Permit,waiver, or waste discharge order administered under the authority of the United States Environmental Protection Agency or the Department of Environmental Protection, provided that the discharge is in full compliance with the requirements of the permit, waiver, or order and applicable laws and regulations; and 14) Discharge for which advanced written approval is received from the DPW as necessary to protect public health, safety, welfare or the environment. 7