Mercer County Conservation District cooperates with engineers, developers, contractors, municipalities, and regulatory agencies to ensure that Pennsylvania’s top pollutant (sediment) is managed to minimize adverse effects on local streams. We provide erosion control plan review and permit approval for earth disturbance activities associated with stream/wetland encroachments and land development projects. We recommend landowners enlist the services of a qualified professional early to perform site investigations, surveys, wetland determinations, preliminary planning, endangered species reviews, and obtain permits. Furthermore, we recommend that consultants contact us to arrange a pre-application meeting before undertaking large projects. This page is dedicated to providing landowners, contractors, and engineers with basic program facts and permit applications/forms.