OCR Text |
Show Pollutants also enter surface waters from non-point sources. Such pollutants flow off or seep from land expanses as diffuse runoff. Public Law 92-500, passedin 1972, requires that "best preventative techniques" or "best management I practices" be implemented to control non-point pollution sources by 1977. Fortunately, implementation of presently-known conservation and management practices will, in most cases, reduce these pollutants to acceptable levels. However, implementation requires a major effort by all of us. |