Overview
The following are types of discharges that are not allowed into the stormwater system.
Sanitary Wastewater Sources
- Sanitary wastewater (usually untreated) from improper sewerage connections, filtration or leakage
- Effluent from improperly operating or improperly designed septic tanks
- Overflow of sanitary systems
Automobile Maintenance and Operation Sources
- Untreated (e.g., through a well-maintained oil / water separator) commercial car wash wastewaters
- Untreated radiator flushing wastewaters
- Untreated engine degreasing wastes
- Improper oil, gasoline and other automotive fluids disposal
- Leaky underground storage tanks
- Untreated leaking of oils, gasoline and other automotive fluids from automobiles
Landscaping Irrigation Sources
- Direct spraying of fertilizers, pesticides or herbicides onto impervious surfaces
- Over-application of fertilizers, pesticides or herbicides onto landscaping
Other Sources
- Laundry wastes
- Non-contact cooling waters
- Metal plating baths
- Dewatering of construction sites
- Washing of concrete ready-mix trucks
- Contaminated sump pump discharges
- Improper disposal of household toxic wastes
- Spills from roadway and other accidents
- Chemical, hazardous materials, garbage and sanitary sludge landfills and disposal sites