Legal Documents of Maryville
Code of Maryville
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Code of Maryville
Title 19 Stormwater
Chapter 4 Stormwater Discharges
Title 19 Stormwater
Chapter 4 Stormwater Discharges
Maryville
Title 19 : Stormwater
Chapter 4 : Stormwater Discharges
19-404 : Prohibitions.
- No person shall:
- Connect, or allow to be connected, any sanitary sewer to the stormwater system, including any sanitary sewer connected to the stormwater system as of the date of adoption of this chapter; or
- Cause or allow an illicit discharge to the stormwater system, or any component thereof, or onto driveways, sidewalks, streets, parking lots, sinkholes, creek banks, or other areas draining to the stormwater system. Illicit discharges include, but are not limited to:
- Sewage discharges except as deemed unavoidable due to collection system operation maintenance and extreme weather events;
- Discharges of wash water from mobile operations such as mobile automobile washing, steam cleaning, power washing, or carpet cleaning;
- Discharges of pool or fountain water containing chlorine, biocides, or other chemicals at the point of entry of an enclosed stormwater system or stream, or discharges of pool or fountain filter backwash water;
- Discharges resulting from the cleaning, repair, or maintenance of any type of equipment, machinery, or facility including motor vehicles, cement-related equipment, or port-a-potty servicing;
- Discharges of wash water from the cleaning or hosing of impervious surfaces in industrial and commercial areas, including parking lots, streets, sidewalks, driveways, patios, plazas, work yards, or outdoor eating or drinking areas;
- Discharges of heated water from commercial or industrial operations;
- Discharges of dyes without proper permission;
- Discharges of laundry wastewater;
- Known discharges from leaking water or sewer lines remaining uncorrected for seven (7) days;
- Discharges or discarding of animal fecal waste or dead animals;
- Discarding of vehicles equipment or vehicle parts;
- Discarding lawn clippings, leaves or branches;
- Discarding trash or debris into containers or areas not intended for the purpose of trash/debris disposal;
- Discarding or applying herbicides, pesticides, fertilizers or other chemicals;
- Discharges of runoff from materials storage areas where chemicals, fuels, grease, oils, or other hazardous materials are stored;
- Discharges from the following land uses, areas or activities that are identified herein as pollutant hotspots:
- Vehicle, truck or equipment maintenance, fueling, washing or storage areas including, but not limited to: Gas stations, automotive dealerships, automotive repair shops, and car wash facilities;
- Any property containing more than four hundred (400) parking spaces, or one hundred twenty thousand (120,000) square feet of impervious area;
- Recycling and/or salvage yard facilities;
- Restaurants, grocery stores and other food service facilities;
- Commercial facilities with outside animal housing areas, including animal shelters, fish hatcheries, kennels, livestock stables, veterinary clinics, or zoos;
- Construction areas; and
- Other producers of pollutants identified by the director of engineering and public works, or his/her designee, by information provided to or collected by him/her, or his/her representatives, or reasonably deduced or estimated by him/her, or his/her representatives, from engineering or scientific study.
- Subject to the provisions of subsection (3), the following discharges shall not be in violation of this chapter:
- Water line flushing;
- Landscape irrigation;
- Diverted stream flows or rising groundwater;
- Infiltration of uncontaminated groundwater (as defined by federal regulations) to separate storm drains;
- Pumping of uncontaminated groundwater;
- Discharges from potable water sources, foundation drains, uncontaminated air conditioning condensation, irrigation waters, springs, water from crawl space pumps, or footing drains;
- Lawn watering;
- Individual noncommercial car washing on residential properties; or car washing of less than two (2) consecutive days in duration for a charity, nonprofit fund raising, or similar noncommercial purpose;
- Flows from riparian habitats and wetlands;
- Dechlorinated swimming pool discharges;
- Incidental street wash water from street cleaning equipment designed for cleaning paved surfaces and limiting waste discharges;
- Street deicing for public safety;
- Any activity authorized by a valid NPDES permit; and
- Any flows resulting from firefighting.
- If the director of engineering and public works, or his/her designee, finds that any of the activities listed in subsection (2) above are found to cause, or may cause, sewage or industrial wastes or other wastes to be discharged into the stormwater system, the director of engineering and public works, or his/her designee, shall notify the person performing such activity and shall order that such activities be stopped or conducted in such manner as to avoid improper discharge into the stormwater system. Failure to comply with such order shall be a violation of this section. (1999 Code, § 19-604)
Date Last Updated: 12/22/2025
Codification Date: 06/01/2024
Officials at Date of Last Codification:
Mayor - Andy White
Vice-Mayor - Fred Metz
Council Member - Sarah Herron
Council Member - Tommy Hunt
Council Member - Drew Miles
City Manager - Greg McClain
Assistant City Manager - Kevin Stoltenberg
City Recorder/Financial Services Director - Sherri Phillips
City Attorney - Melanie Davis