This article is part of a series for land developers in Indianapolis. See the article one about wellhead protection ordinances and article three about leased spaces.
During any construction process, even small increases of foot or vehicle traffic can impact on-site soil and stormwater management. Soil that is disturbed can travel off-site or contribute to on-site erosion, impacting our ecosystems and waterways.
Although the requirements of Indianapolis’ Construction Stormwater General Permit apply to construction activity resulting in the disturbance of one acre or more of total land area, even smaller areas which involve clearing, grading, excavation and other land disturbing activities can play a part in controlling mud runoff into storm sewers and waterways by using erosion prevention and control measures.
Why do I need erosion control measures?
Sediment is the most prevalent pollutant in Indiana’s surface waters by volume according to the Marion County Soil and Water Conservation District. Active construction sites are especially at risk for adding to that pollution due to the amount of disturbed soils and long duration of projects. Erosion causes the depletion of nutrient rich topsoil leading to less protective vegetation which may negatively impact water quality.
Keeping your soil stable decreases pollutant travel and in general helps the local ecosystem.
What regulations apply to me? Can I get help?
Erosion prevention and sediment control are an important part of your Stormwater Pollution Prevention Plan (SWPPP). Indiana has several regulations for Stormwater Pollution Prevention. For construction or land disturbance activities, sites which result in a land disturbance of 1 acre or more are regulated through the Construction Stormwater General Permit. While the Marion County Wellfield Education Corporation can provide basic help with stormwater management, the Marion County Soil and Water Conservation District, offers free technical assistance designed specifically for this permitting process as well as for those not regulated by the permit.
What are some common erosion and sediment control measures?
It is important to note that a Stormwater Pollution Prevention Plan is a living document. Site changes including weather, new plans, or new equipment may impact the best laid plans. Common erosion and sediment control measures include, but are not limited to:
- Stone at outlet pipes
- Temporary seeding
- Silt fence
- Mulch
- Erosion control blankets
Check out this pocket guide from the Marion County Soil and Water Conservation District to get a general idea.
Whether a business, property developer, or homeowner, controlling waste and debris on the job is critical to protecting our drinking water resources. Everyone involved at the construction site is responsible for preventing stormwater pollution and staying aware of any changes that take place during the project. Protecting our waterways is truly a team effort!
