30.100 Discharge Prohibitions.

(1) Prohibition of Illicit Discharges. No person shall throw, drain, or otherwise discharge, cause, or allow others under its control to throw, drain, or otherwise discharge into the MS4 any pollutants or waters containing any pollutants, other than stormwater.

(2) Allowed Discharges.

(a) Water line flushing, landscape irrigation, diverted stream flows, rising ground waters, uncontaminated pumped ground water, discharges from potable water sources, foundation drains, air conditioning condensation, irrigation water, springs, water from crawl space pumps, footing drains, lawn watering, individual residential car washing, flows from riparian habitats and wetlands, dechlorinated swimming pool discharges, and street wash water.

(b) Discharges or flow from firefighting, and other discharges specified in writing by the Department of Public Works as being necessary to protect public health and safety.

(c) Discharges associated with dye testing; however, this activity requires a verbal notification to the Department of Public Works and the Department of Natural Resources a minimum of one day prior to the time of the test.

(d) Any nonstormwater discharge permitted under either an NPDES or a WPDES permit, waiver, or waste discharge order issued to the discharger and administered under the authority of the United States Environmental Protection Agency or the Wisconsin Department of Natural Resources. Any person subject to such either an NPDES or a WPDES stormwater discharge permit shall comply with all provisions of such permit.

(3) Prohibition of Illicit Connections.

(a) The construction, use, maintenance or continued existence of illicit connections to the MS4 is prohibited.

(b) This prohibition expressly includes, without limitation, illicit connections made in the past, regardless of whether the connection was permissible under law or practices applicable or prevailing at the time of connection.

(c) A person is considered to be in violation of this chapter if the person connects a line conveying sewage to the MS4, or allows such a connection to continue.

(d) Improper connections in violation of this chapter must be disconnected and redirected, if necessary, to an approved on-site wastewater management system or the sanitary sewer system upon approval of the Department of Public Works.

(e) Any drain or conveyance that has not been documented in plans, maps or equivalent, and which may be connected to the storm sewer system, shall be located by the owner or occupant of that property upon receipt of written notice of violation from the Department of Public Works requiring that such locating be completed. Such notice will specify a reasonable time period within which the location of the drain or conveyance is to be determined, that the drain or conveyance be identified as storm sewer, sanitary sewer or other, and that the outfall location or point of connection to the storm sewer system, sanitary sewer system or other discharge point be identified. Results of these investigations are to be documented and provided to the Department of Public Works.

[Ord. 08-625 § 1, 2008. Prior code § 30.10]