IDEM Construction Stormwater General Permit

This is the new IDEM permit that was previously known as the Rule 5 Permit. This establishes requirements for stormwater discharges from construction activities of one acre or more to protect public health, existing water uses and waters of the state. The Notice of Intent (NOI) will need to be filed prior to any land disturbance and a copy sent to this office. The city also requires an Initial SWPPP Inspection to verify all erosion controls are in place prior to land disturbance. A qualified person will be required to perform routine inspections at the site.

They shall be conducted weekly and by the end of the next day after each measurable rain event (0.5” of rainfall). Inspection reports shall be kept on site or made available within 48 hours of the MS4 request. An information packet will be provided at the Preconstruction Meeting.

More information about the CSGP can be found here on the IDEM website.

https://www.in.gov/idem/stormwater/construction-land-disturbance-permitting/

Best Management Practices and Erosion Control Measures

Information for the above can be found in our Stormwater Technical Standards and also in our City Standards, located in the gold boxes at the top of the page.

Individual Lot Erosion Control

While an individual lot does not require a CGSP, under our Stormwater Ordinance there are requirements to be followed to prevent stormwater runoff and pollution. These requirements are included with your building permit and can be found here. Any grievous violations may cause a Stop Work Order.