The question may not be only about agricultural runoff. Sewage overflow and septic tank seepage can contribute N and P. But I agree with the filter strip and constructed wetland recommendations, and also with Richard Ashley to consider SUDS (see also WSUD) solutions.
Published by Hugh Milner, Water Resources & Environmental Consultant
The question may not be only about agricultural runoff. Sewage overflow and septic tank seepage can contribute N and P. But I agree with the filter strip and constructed wetland recommendations, and also with Richard Ashley to consider SUDS (see also WSUD) solutions.