ANTIDEGRADATION REQUIREMENTS
- (a) Scope. This section applies to surface waters of this Commonwealth.
- (b) Existing use protection for surface waters. Existing instream water uses and the level of water quality necessary to protect the existing uses shall be maintained and protected.
- (c) Protection for High Quality Waters—The water quality of High Quality Waters shall be maintained and protected, except as provided in § 93.4c(b)(1)(iii) (relating to implementation of antidegradation requirements).
- (d) Protection for Exceptional Value Waters—The water quality of Exceptional Value Waters shall be maintained and protected.
Authority
The provisions of this § 93.4a issued under sections 5(b)(1) and 402 of The Clean Streams Law (35 P. S. § § 691.5(b)(1) and 691.402); and section 1920-A of The Administrative Code of 1929 (71 P. S. § 510-20).
Source
The provisions of this § 93.4a adopted July 16, 1999, effective July 17, 1999, 29 Pa.B. 3720.
Cross References
This section cited in 25 Pa. Code § 96.3 (relating to water quality protection requirements).