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Releases Under the Cooperative Agreement. Tom Kobus NE Region Erosion Control and Stormwater Engineer. Goals of Presentation. Develop common understanding Assist in focusing our efforts Identify the problem Learn from our mistakes Work to improve overall EC effort.
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Releases Under the Cooperative Agreement Tom Kobus NE Region Erosion Control and Stormwater Engineer
Goals of Presentation • Develop common understanding • Assist in focusing our efforts • Identify the problem • Learn from our mistakes • Work to improve overall EC effort
Reality for Some Soil Types* • Any runoff from a project can produce a release. • The relationship of soil type, moisture content and runoff volume determine weather you have a release. • 2-year 24 hour is the design standard • 2-year 24 hour rain event is irrelevant once you get to construction *Even without human error
Principles of Erosion ControlPlan Design • Design or select best management practices for the project to: • Avoid or minimize on-site erosion damage in order to avoid or minimize off-site sediment or pollutant accumulation that may result from a discharge. • Protect the perimeter area of the site and the disturbed areas from erosion and pollutant accumulation that may result from off-site runoff.
Principles of Erosion ControlPlan Design • Design or select best management practices for the project to: • Reduce runoff velocities and retain sediments and pollutants on site to the maximum extent practicable
Principles of Erosion ControlConstruction Project Management • Minimize the size of the disturbed area exposed at any one time and the duration of the exposure • Stabilize the disturbed area as soon as practicable.
Cooperative Agreement • 1. Identify and investigate the problem • 2. Assess the extent of adverse impacts • 3. Assess the responsibility of the contractor • 4. Agree on the appropriate remedy • 5. Agree on if enforcement action is applicable
Cooperative Agreement • 1. Identify and investigate the problem • 2. Assess the extent of adverse impacts • 3. Assess the responsibility of the contractor • 4. Agree on the appropriate remedy • 5. Agree on if enforcement action is applicable
Jointly Investigate • Who has time to jointly investigate all releases? • How familiar are you with project and erosion control in the area? • Magnitude? • SWEC Engineer should take lead • If WDNR has interest in enforcement process should be followed to the letter.
How I Investigate • Was the release reported to USACE - WDNR? • Go to locations where water leaves the project. • Has deposition occurred in wetlands or waterways? • Determine if more than deminamus? • Track the sediment to the source? • What erosion took place? • What BMP may reduce or minimize?
Results from my Reviews • What grading practices need to change. • What BMP’s should be added to reduce erosion on site to minimize releases • What BMP’s may need to be added for public perception
Cooperative Agreement • 1. Identify and investigate the problem • 2. Assess the extent of adverse impacts • 3. Assess the responsibility of the contractor • 4. Agree on the appropriate remedy • 5. Agree on if enforcement action is applicable
Collect Facts • Review ECIP and amendments • Review inspections and orders • Look for negligence on part of contractor in the form of written direction or commitments. • Did the contractor violate the terms of the contract.
Cooperative Agreement • 1. Identify and investigate the problem • 2. Assess the extent of adverse impacts • 3. Assess the responsibility of the contractor • 4. Agree on the appropriate remedy • 5. Agree on if enforcement action is applicable
“Agree” • Agree on an appropriate remedy that prescribes the methods and time schedules to mitigate the environmental harm. • WisDOT and WDNR jointly recommend Enforcement action.
