In the past, developers were required to control erosion during construction for projects disturbing 5 acres or more of land only. That has all changed; the 5 acre threshold has been reduced to 1 acre. There are now requirements for both erosion control and proper hazardous material storage during construction. Site planning must include measures to avoid sensitive areas, decrease impervious surface area, and provide for on-site treatment of stormwater runoff using Best Management Practices (BMPs). Construction projects must apply for a local permit which will include a review of plan sheets and project sequencing. Click the link below to download the complete Contractor’s Resource Book developed by TCPWQ (2016).
There are also requirements for "self-monitoring" and periodic reporting to local officials during construction. Local authorities will spot check construction sites to ensure proper measures are all in place. Following construction, the property owners are required to monitor, maintain, and report on the condition of on-site BMPs to ensure they continue to work properly. Links to GIS mapping, inspection forms, and permit forms can be found on the Tippecanoe County Drainage Board web page. Local, State, and Federal regulations requiring these changes can be found using the “Regulations” link below. These resources should help you plan and build a water quality friendly development without creating delays.
Contractors Resource Handbook (PDF, 84p, 12.2MB) February 2016
Indiana Stormwater Quality Manual (External Link - IDEM website)
Concrete Washout Fact Sheet (PDF, 5p, 929 KB) February 2012
Illicit Discharge for Contractors (PDF, 2p, 483 KB) February 2012
National Certifications (PDF, 1p, 150 KB) February 2016
Permits, Monitoring & Reporting Forms
Below are excerpts from the Tippecanoe County Stormwater Technical Standards. These forms and checklists are required in many instances where stormwater activities are taking place. For a full version of the Technical Standards Manual, please refer to the Regulations section of this page.
Stormwater Application Checklist - a helpful checklist of supporting documents and data that need to be gathered prior to applying for a stormwater permit
Notice of Intent - Submission of this Notice of Intent letter constitutes notice that the project site owner is applying for coverage under the National Pollutant Discharge Elimination System (NPDES) General Permit Rule for Storm Water Discharges Associated with Construction Activity. More information on the IDEM Rule 5 NOI Submittal can be found by visiting the IDEM website.
Mandatory Construction Site Self-Monitoring - All Sediment and Erosion Control BMPs shall be inspected and maintained as needed to ensure continued performance of their intended function during construction and shall continue until the entire site has been stabilized and a Notice of Termination has been issued. The Inspection Forms must be retained and made available to the Tippecanoe County Drainage Board upon request.
Notice of Termination - Submission of this Notice of Termination letter constitutes notice to the Commissioner that the project site owner is applying for Termination of Coverage under the National Pollutant Discharge Elimination System (NPDES) General Permit Rule for Storm Water Discharges Associated with Construction Activity. All construction sites shall undergo a final inspection by the Tippecanoe County Drainage Board following submittal of a Notice of Termination (NOT) by the project owner to ensure the site is stabilized and that post construction BMPs have been properly installed.
The Tippecanoe County Partnership for water quality sponsors a Contractors’ Workshop for Stormwater Protection and a Pollution Prevention and Good Housekeeping workshop every year. See the flyer below for discussion topics, location, and information from a recent contractors’ workshop.
The next TCPWQ-sponsored training is Tuesday, December 3rd at Ivy Tech Community College.
Also, the Indiana Department of Natural Resources Division of Soil Conservation, has updated the Indiana Stormwater Quality Manual (formerly known as the Indiana Handbook for Erosion Control). In addition to erosion and sediment control, the updated handbook includes information, specifications, and measures to address the minimization of post-construction pollutants.