Current through Register Vol. XLI, No. 45, November 8, 2024
Section 47-2-6 - Water Use Categories6.1. This section establishes general Water Use Categories and Water Quality Standards for the waters of the State. Unless otherwise designated by this rule, at a minimum all waters of the State are designated for the Propagation and Maintenance of Fish and Other Aquatic Life (Category B) and for Water Contact Recreation (Category C) consistent with Federal Act goals. Incidental utilization for whatever purpose may or may not constitute a justification for assignment of a water use category to a particular stream segment. 6.1.a. Waste assimilation and transport are not recognized as designated uses. The classification of the waters must take into consideration the use and value of water for public water supplies, protection and propagation of fish, shellfish and wildlife, recreation in and on the water, agricultural, industrial, and other purposes, including navigation. Subcategories of a use may be adopted and appropriate criteria set to reflect varying needs of such subcategories of uses, for example to differentiate between trout water and other waters.
6.1.b. At a minimum, uses are deemed attainable if they can be achieved by the imposition of effluent limits required under section 301(b) and section 306 of the Federal Act and use of cost-effective and reasonable best management practices for non-point source control. Seasonal uses may be adopted as an alternative to reclassifying a water or segment thereof to uses requiring less stringent water quality criteria. If seasonal uses are adopted, water quality criteria will be adjusted to reflect the seasonal uses; however, such criteria shall not preclude the attainment and maintenance of a more protective use in another season. A designated use which is not an existing use may be removed, or subcategories of a use may be established if it can be demonstrated that attaining the designated use is not feasible because: 6.1.b.1. Application of effluent limitations for existing sources more stringent than those required pursuant to section 301 (b) and section 306 of the Federal Act in order to attain the existing designated use would result in substantial and widespread adverse economic and social impact; or6.1.b.2. Naturally-occurring pollutant concentrations prevent the attainment of the use; or6.1.b.3. Natural, ephemeral, intermittent or low flow conditions of water levels prevent the attainment of the use, unless these conditions may be compensated for by the discharge of sufficient volume of effluent discharges to enable uses to be met; or6.1.b.4. Human-caused conditions or sources of pollution prevent the attainment of the use and cannot be remedied or would cause more environmental damage to correct than to leave in place; or6.1.b.5. Dams, diversions or other types of hydrologic modifications preclude the attainment of the use, and it is not feasible to restore the water to its original condition or to operate such modification in a way that would result in the attainment of the use; or6.1.b.6. Physical conditions related to the natural features of the water, such as the lack of a proper substrate, cover, flow, depth, pools, riffles, and the like, unrelated to water quality, preclude attainment of aquatic life protection uses.6.1.c. The State shall take into consideration the quality of downstream waters and shall assure that its water quality standards provide for the attainment of the water quality standards of downstream waters.6.1.d. In establishing a less restrictive use or uses, or subcategory of use or uses, and the water quality criteria based upon such uses, the secretary shall follow the requirements for revision of water quality standards as required by W. Va. Code § 22-11-7b and section 303 of the Federal Act and the regulations thereunder. Any revision of water quality standards shall be made with the concurrence of the U.S. EPA. The secretary and the applicant shall follow the Procedural Rule Governing Site Specific Revisions to Water Quality Standards, 46CSR6.6.2. Category A -- Water Supply, Public. -- This category is used to describe waters which, after conventional treatment, are used for human consumption. This category includes waters on which the following are located: 6.2.a. All community domestic water supply systems;6.2.b. All non-community domestic water supply systems (i.e. hospitals, schools, etc.);6.2.c. All private domestic water systems;6.2.d. All other surface water intakes where the water is used for human consumption. (See Appendix B for partial listing of Category A waters and paragraph 7.2.a.2, herein for additional requirements for Category A waters.) The manganese human health criterion shall only apply within the five-mile zone immediately upstream above a known public or private water supply used for human consumption.6.3. Category B -- Propagation and maintenance of fish and other aquatic life. -- This category includes:
6.3.a. Category B1 -- Warm water fishery streams. -- Streams or stream segments which contain populations composed of all warm water aquatic life.6.3.b. Category B2 -- Trout Waters. -- As defined in section 2.19 herein (see, Appendix A for a representative list.)6.3.c. Category B4 -- Wetlands. -- As defined in section 2.22 herein; certain numeric stream criteria may not be appropriate for application to wetlands (see, Appendix E, Table 1).6.4. Category C -- Water contact recreation. -- This category includes swimming, fishing, water skiing and certain types of pleasure boating such as sailing in very small craft and outboard motor boats. (See, Appendix D for a representative list.)6.5. Category D. -- Agriculture and wildlife uses.6.5.a. Category D1 -- Irrigation. -- This category includes all stream segments used for irrigation.6.5.b. Category D2 -- Livestock watering. -- This category includes all stream segments used for livestock watering.6.5.c. Category D3 -- Wildlife. -- This category includes all stream segments and wetlands used by wildlife.6.6. Category E -- Water supply industrial, water transport, cooling and power. -- This category includes cooling water, industrial water supply, power production, commercial and pleasure vessel activity, except those small craft included in Category C.6.6.a. Category E1 -- Water Transport. -- This category includes all stream segments modified for water transport and having permanently maintained navigation aids.6.6.b. Category E2 -- Cooling Water. -- This category includes all stream segments having one (1) or more users for industrial cooling.6.6.c. Category E3 -- Power production. -- This category includes all stream segments extending from a point 500 feet upstream from the intake to a point one-half (1/2) mile below the wastewater discharge point. (See, Appendix C for representative list.)6.6.d. Category E4 -- Industrial. -- This category is used to describe all stream segments with one (1) or more industrial users. It does not include water for cooling.