Section 507 - Manure application setbacks and buffers(a) General rule.--Unless the commission establishes a stricter requirement by regulation, no concentrated animal operation or other agricultural operation receiving manure from a concentrated animal operation directly or indirectly through a broker or other person may mechanically land apply manure within 100 feet of surface water unless a vegetated buffer no less than 35 feet in width and meeting standards established by the Natural Resources Conservation Service is used to prevent manure runoff into the surface water.(b) Definition.--As used in this section, the term "surface water" means a perennial or intermittent stream with a defined bed and bank, a lake or a pond. 2005, July 6, P.L. 112, No. 38, § 1, effective 1/3/2006.