Soil, cement wash, asphalt, oil and other hazardous debris from construction sites often make their way into the City of Green Bay storm drain system and flow untreated into local waterways. Follow these best management practices to prevent pollution, protect public health, and avoid fines or legal action.
- Store Materials Safely: Keep construction materials and debris away from the street, gutter and storm drains. Cover exposed stockpiles of soil, sand or gravel and excavated material with plastic sheeting, protected from rain, wind and runoff.
- Preventing Erosion: Avoid excavation or grading during wet weather. Plant temporary vegetation or add hydro mulch on slopes where construction is not immediately planned, and permanent vegetation once excavation and grading are complete. Construct diversion dikes to channel runoff to a detention basin around the construction site. Use gravel approaches where truck traffic is frequent to reduce soil compaction and limit the tracking of sediment into the streets. For more information on erosion control visit our section on Erosion Control.
- Cleaning & Preventing Spills: Use a drip pan and funnel when draining or pouring fluids. Sweep up dry spills, instead of hosing. Be ready for spills by preparing and using spill containment and cleanup kits that include safety equipment and dry cleanup materials such as kitty litter or sawdust. To report serious spills, call 911.
- Maintaining Vehicles & Equipment: Maintain and refuel vehicles and equipment at a single location on-site, away from the street, gutter and storm drains. Perform major equipment repairs and washings off-site. Inspect vehicles and equipment frequently for leaks, and prevent leaks from stored vehicles by draining gas, hydraulic oil, transmission, and brake and radiator fluids.
- Ordering Materials & Recycling Waste: Reduce waste by ordering only the amounts of materials needed for the job. Use recycled or recyclable materials whenever possible. You can recycle broken asphalt, concrete, wood, and cleared vegetation. Dispose of hazardous materials through a hazardous waste hauler or other means in accordance with the construction permit. Non-recyclable materials should be taken to a landfill or disposed of as hazardous waste. For recycling and disposal information, visit the Brown County Household Hazardous Waste Facility’s website.
- Concrete and mortar application: Never dispose of cement washout into driveways, streets, gutters or drainage ditches. Wash concrete mixers and equipment only in specified washout areas, where the water flows into lined containment ponds. Cement washed water can be recycled by pumping it back into cement mixers for reuse.
The Federal Water Pollution Control Act prohibits the discharge of any pollutant to navigable waters from a point source unless the discharge is authorized by a National Pollutant Discharge Elimination System (NPDES) permit. The 1987 passage of the Water Quality Act established NPDES permit requirements for discharges of storm water. The NPDES permit program controls water pollution by regulating point sources that discharge pollutants into waters of the United States.
Industrial facilities and construction sites are regulated by the Regional Water Quality Control Board and State Water Resources Control Board, through general storm water permits. Most industrial, manufacturing, or transportation businesses that store materials, products or equipment outdoors, or conduct vehicle washing or process operations outdoors, are required to obtain coverage under the State Water Resources Control Board’s General Industrial Activities Storm water Permit. For more information about this permit visit the Wisconsin DNR Website or contact your local storm water coordinator Matthew Heckenlaible at (920)-448-3100.
If your business conducts construction activities, including clearing, grading, stockpiling or excavation that results in soil disturbances of at least one acre, you are subject to the State Water Resources Control Board’s General Construction Activities Storm water Permit. To find out more about this storm water permit for construction, visit the Wisconsin DNR Website.
Click here to view the City of Green Bay Chapter 30 Storm Water Management.
Click here to view the Wisconsin DNR Chapter 151.