Stormwater Management

DEP Regulation

As per the EPA, Aldan has an MS4 permit issued by DEP which regulates the municipal separate storm sewer system. Read more here: Stormwater Discharges from Municipal Sources.

Borough Ordinance

Stormwater Management Ordinance Summary — No person in the Borough shall allow, or cause to allow, stormwater discharges into the Borough’s separate storm water system which are not composed entirely of stormwater.

Local Pollution

In the event any type of pollution is observed entering into the Borough Stormwater System and/or streams and waterways, please call Aldan Police Department (610) 626-3554.

Contact Numbers

  • DEP 24-Hour Water Quality Hotline: (484) 250-5900; 1-866-255-5158 (Toll-Free)
  • DEP Spills & Other Emergencies Hotline: (484) 250-5900
  • Aqua Pennsylvania: (610) 525-1402 (24-Hours)
  • Delaware County Conservation District: (610) 892-9484

How Stormwater Works

Below are some helpful tips to protest our stormwater resources from contamination.

As stormwater flows over driveways, lawns and sidewalks, it picks up debris, chemicals, dirt, and other pollutants. Stormwater can flow into a storm sewer system, or directly into a lake, stream, river, wetland, or coastal water. Anything that enters a storm sewer is discharged untreated into the waterbodies we use for swimming, fishing, and providing drinking water. Polluted runoff is the nation’s greatest threat to clean water.

By practicing healthy household habits, homeowners can keep common pollutants like pesticides, pet waste, grass clippings, and automotive fluids off the ground and out of stormwater. Adopt these healthy household habits and help protect lakes, streams, rivers, wetlands and coastal waters. Remember to share the habits with your neighbors!

Healthy Household Habits for Clean Water


Vehicle & Garage:

  • Use a commercial car wash or wash your car on a lawn or other unpaved surface to minimize the amount of dirty, soapy water flowing into the storm drain and eventually into your local waterbody.
  • Check your car, boat, motorcycle or other machinery and equipment for leaks and spills. Make repairs as soon as possible. Clean up spilled fluids with an absorbent material like kitty litter or sand, and don’t rinse the spills into a nearby storm drain. Remember to properly dispose of the absorbed material.
  • Recycle used oil and other automotive fluids at participating service stations. Don’t dump these chemicals down the storm drain or dispose of them in your trash.

Lawn & Garden:

  • Use pesticides and fertilizers sparingly. When use is necessary, use these chemicals in the recommended amounts. Avoid the application if the forecast calls for rain; otherwise, chemicals will be washed into your local stream.
  • Select native plants and grasses that are drought and pest resistant. Native plants require less water, fertilizer, and pesticide.
  • Sweep up yard debris, rather than hosing down areas. Compost or recycle yard waste when possible.
  • Don’t overwater your lawn. Water during the cool times of the day, and don’t let water run off into the storm drain.
  • Cover piles of dirt and mulch being used in landscaping projects to prevent these pollutants from blowing or washing off your yard into local waterbodies. Vegetate bare spots in your yard to prevent soil erosion.

Home Repair & Improvement:

  • Before beginning an outdoor project, locate the nearest storm drains and protect them from debris and other materials.
  • Sweep up and properly dispose of construction debris such as concrete and mortar.
  • Use hazardous substances like paint, solvents and cleaners in the smallest amounts possible, and follow the directions on the label. Clean up spills immediately, and dispose of the waste safely. Store substance properly to avoid leaks and spills.
  • Purchase and use non-toxic biodegradable, recycled, and recyclable products whenever possible.
  • Clean paint brushes in a sink, not outdoors. Filter and reuse paint thinner, when using oil-based paints. Properly dispose of excess paints through a household hazardous waste collection program, or donate unused paint to local organizations.
  • Reduce the amount of paved area and increase the amount of vegetated area in your yard. Use native plants in your landscaping to reduce the need for watering during dry periods, Consider directing downspouts away from paved surfaces onto lawns and other measures to increase infiltration and reduce polluted runoff.

Pet Care:

  • When walking your pet, remember to pick up the waste and dispose of it properly. Flushing pet waste is the best disposal method. Leaving pet waste on the ground increases public health risks by allowing harmful bacteria and nutrients to wash into the storm drain and eventually into local waterbodies.

Swimming Pool & Spa:

  • Drain your swimming pool only when a test kit does not detect chlorine levels.
  • Whenever possible, drain your pool or spa into the sanitary serer system.
  • Properly store pool and spa chemicals to prevent leaks and spills, preferably in a covered area to avoid expose to stormwater.

Septic System Use & Maintenance:

  • Have your septic system inspected by a professional at least every 3 years, and have the septic tank pumped as necessary (usually 3 to 5 years).
  • Care for the septic system drainfield by not driving or parking vehicles on it. Plant only grass over and near the drainfield to avoid damage from roots.
  • Flush responsibly. Flushing household chemicals like paint, pesticides, oil and anti-freeze can destroy the biological treatment taking place in the system. Other items such as diapers, paper towels, and cat litter can clog the septic system and potentially damage components.

Online Resources