WAC 173-201A-430. Site-specific criteria

(1) Where the existing and designated uses for the water body would be fully protected using an alternative criterion, site-specific criteria may be adopted. (a) The site-specific criterion must be consistent with the federal regulations on protecting uses (currently 40 C.F.R. 131.11); and (b) The decision to approve a site-specific criterion must be subject to a public involvement and intergovernmental coordination process. (2) The site-specific analyses for the development of a new water quality criterion must be conducted in a manner that is scientifically justifiable and consistent with 40 C.F.R. 131.11; and conducted in accordance with the procedures established in the " Water Quality Standards Handbook ," EPA 2023, as revised. (3) The decision to approve the site-specific criterion must be based on a demonstration that it will protect the existing and designated uses of the water body. (4) Site-specific criteria are not in effect until they have been incorporated into this chapter and approved by the USEPA.