Article II of this bylaw shall apply to all water generated on any developed or undeveloped lands and entering the municipally owned storm drainage system or entering, directly or indirectly, into a watercourse or waters of the commonwealth, except as explicitly exempted in this bylaw or where the Stormwater Authority has issued a waiver in accordance with Article I, § 386-5.
A. 
Illicit discharges. No person shall dump, discharge, spill, cause or allow to be discharged any pollutant or nonstormwater discharge into the municipal separate storm sewer system (MS4), onto an impervious surface directly connected to the MS4, or, directly or indirectly, into a watercourse or waters of the commonwealth.
B. 
Illicit connections. No person shall construct, use, allow, maintain or continue any illicit connection to the municipal storm drain system, regardless of whether the connection was permissible under applicable law, regulation or custom at the time of connection.
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 consent from the Stormwater Authority.
D. 
Exemptions.
(1) 
Discharge or flow resulting from firefighting activities;
(2) 
The following nonstormwater discharges or flows are exempt from the prohibitions of this section, provided that the source is not a significant contributor of a pollutant to the municipal storm drain system or, directly or indirectly, to a watercourse or waters of the commonwealth:
(a) 
Waterline flushing;
(b) 
Flow from potable water sources, with the exception of landscape irrigation and lawn watering;
(c) 
Springs;
(d) 
Natural flow from riparian habitats and wetlands;
(e) 
Diverted stream flow;
(f) 
Rising groundwater;
(g) 
Uncontaminated groundwater infiltration as defined in 40 CFR 35.2005(20), or uncontaminated pumped groundwater (e.g., sump pump), provided that where a pump intake exists inside a structure, the operator seeks a permit for such discharge from the Stormwater Authority prior to discharge and thereafter discharges in accordance with the requirements of the permit and applicable laws and regulations to be issued by the Stormwater Authority;
(h) 
Water from exterior foundation drains, footing drains (not including active groundwater dewatering systems), crawl space pumps, or air-conditioning condensation;
(i) 
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;
(j) 
Discharge from street sweeping;
(k) 
Dye testing, provided verbal notification is given to the Stormwater Authority prior to the time of the test;
(l) 
Nonstormwater discharge permitted under an NPDES permit, waiver, or waste discharge order held by the owner and administered under the authority of the United States Environmental Protection Agency, provided that the discharge is in full compliance with the requirements of the permit, waiver, or order and applicable laws and regulations; and
(m) 
Discharge for which advanced written approval is received from the Stormwater Authority as necessary to protect public health, safety, welfare or the environment.
Pet waste. Dog feces are a major component of stormwater pollution. It is prohibited to dispose of dog feces in any public or private storm drain, catch basin, wetland or water body or on any paved or impervious surface. However, this provision shall not be applicable to a person using a helping dog or other helping animal registered as such.
The Stormwater Authority or its authorized agent may suspend municipal storm drain system access to any person or property without prior written notice when such suspension is necessary to stop an actual or threatened discharge of pollutants that presents imminent risk of harm to the public health, safety, welfare or the environment. In the event any person fails to comply with an emergency suspension order, the Stormwater Authority may take all reasonable steps to prevent or minimize harm to the public health, safety, welfare or the environment.
Notwithstanding other requirements of local, state or federal law, as soon as a person responsible for a facility or operation, or responsible for emergency response for a facility or operation, has information of or suspects a release of materials at that facility or operation resulting in or which may result in discharge of pollutants to the municipal drainage system, watercourse, or waters of the commonwealth, the person shall take all necessary steps to ensure containment and cleanup of the release. In the event of a release of oil or hazardous materials, the person shall immediately notify the municipal fire and police departments. In the event of a release of nonhazardous material, the reporting person shall notify the authorized enforcement agency no later than the next business day. The reporting person shall provide to the Stormwater Authority written confirmation of all telephone, facsimile or in-person notifications within three business days thereafter. If the discharge of prohibited materials is from a commercial or industrial facility, the facility owner or operator of the facility shall retain on site a written record of the discharge and the actions taken to address it and prevent its recurrence. Such records shall be retained for at least three years.
Residential property owners with illicit discharges, connections and/or obstructions to the MS4 shall have a period of 60 days from the effective date of this bylaw to remove such discharges, connections and/or obstructions, unless immediate removal is required for the protection of public health, safety, welfare or the environment. The Stormwater Authority may extend the time for compliance by regulation or by waiver in accordance with Article I, §§ 386-5 and 386-6, of this bylaw.