327 IAC 2-1.5-5 Surface water use designations; multiple uses

Sec. 5. (a) The following water uses are designated by the board: (1) Except as provided in subsection (c), surface waters of the state within the Great Lakes system are designated for full-body contact recreation. (2) All surface waters, except as described in subdivision (7), shall be capable of supporting a well-balanced, warm water aquatic community. (3) Where natural temperatures will permit, surface waters shall be capable of supporting put-and-take trout fishing. All waters capable of supporting the natural reproduction of trout shall be so maintained. The following waters are designated as salmonid waters and shall be capable of supporting a salmonid fishery: (A) Trail Creek and its tributaries downstream to Lake Michigan. (B) East Branch of the Little Calumet River and its tributaries downstream to Lake Michigan via Burns Ditch. (C) Salt Creek above its confluence with the Little Calumet River. (D) Kintzele Ditch (Black Ditch) from Beverly Drive downstream to Lake Michigan. (E) The Galena River and its tributaries in LaPorte County. (F) The St. Joseph River and its tributaries in St. Joseph County from the Twin Branch Dam in Mishawaka downstream to the Indiana/Michigan state line. (G) The Indiana portion of the open waters of Lake Michigan. (H) Those waters designated by the Indiana department of natural resources for put-and-take trout fishing. (4) All surface waters used for public water supply are designated as a public water supply. This use designation and its corresponding water quality criteria are not to be construed as imposing a user restriction on those exercising or desiring to exercise the use. (5) All surface waters used for industrial water supply are designated as an industrial water supply. This use designation and its corresponding water quality criteria are not to be construed as imposing a user restriction on those exercising or desiring to exercise the use. (6) All surface waters used for agricultural purposes are designated as an agricultural use water. (7) Limited use waters are designated under section 19(a) of this rule pursuant to section 18 of this rule. All waters that are designated as a limited use water under section 19(a) of this rule must be evaluated for restoration and upgrading at each triennial review of this rule. (b) Where multiple uses have been designated for a body of water, the most protective of all simultaneously applicable standards will apply. (c) A CSO wet weather limited use designation is established as a subcategory of the recreational use designation established under subsection (a). This subcategory shall be applied in accordance with 327 IAC 2-1-3.1.