Reducing Sediment Run-off inBerry Fields

Chris Luerkens, WA Department of Ecology&

Chuck Timblin, Whatcom Conservation District

Pollutants of concern• Sediment/nutrients• Fecal coliform bacteria

Ecology’s role

Washington State’s Water PollutionControl Act (RCW 90.48)

…unlawful to cause or allow pollution to discharge into state waters…

Pollution can occur…

• Field conversions/renovationsoBare soil (sediment runoff)oManure use without BMPsoLagoon decommissioning

saturation + rain + bare soil + lack of BMPs = polluted runoff

Soil Erosion

Soil Erosion

Field Runoff

Lagoon Decommissioning

Whatcom Conservation District• Non-regulatory• Confidential• Technical and Financial Assistance to correct

Resource Problems

Pond Decommissioning

Pond Decommissioning

• Best Management Practice guidance:o Don’t wait until fallo Nutrient management vs. waste disposal:

find out what’s in the pond and use responsibly

o Grade & Fill: contact the county

Field Renovation

Field Renovation

• Best Management Practice guidance:o Land smoothingo Long term vs. short term effectso Don’t wait until fall to get startedo In field areas bordering ditches , be

prepared to mulch if seasonal runoff period begins before cover crops establish

Drainage Maintenance

Drainage Maintenance

Drainage Guidance

• Best Management Practiceguidance:o Read before you dig!o Drainage Management

Guide for Whatcom County Drainage Improvement Districts