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<br /> <br />Table 9: Colorado surface water state use classifications <br /> <br />3.1.13 STATE USE CLASSIFICATIONS <br /> <br />Waters are classified according to the uses for which they are presently suitable or <br />intended to become suitable. In addition to the classifications, one or more of the <br />qualifying designations described in paragraph 3.1.13(2), may be appended. <br />Classifications may be established for any state surface waters, except that water in <br />ditches and other manmade conveyance structures shall not be classified. <br /> <br />(1) Classifications <br /> <br />(a) Recreation <br /> <br />(i) Class 1 - Primarv Contact <br /> <br />These surface waters are suitable or intended to become suitable for <br />recreational activities in or on the water when the ingestion of small quantities <br />of water is likely to occur. Such waters include but are not limited to those <br />used for swimming, rafting, kayaking and water-skiing. <br /> <br />(ii) Class 2 - Secondarv Contact <br /> <br />These surface waters are suitable or intended to become suitable for <br />recreational uses on or about the water which are not included in the primary <br />contact subcategory, including but not limited to fishing and other streamside <br />or lakeside recreation. <br /> <br />(b) Aariculture <br /> <br />These surface waters are suitable or intended to become suitable for irrigation <br />of crops usually grown in Colorado and which are not hazardous as drinking <br />water for livestock, <br /> <br />(c) Aauatic life <br /> <br />These surface waters presently support aquatic life uses as described below, <br />or such uses may reasonably be expected in the future due to the suitability of <br />present conditions, or the waters are intended to become suitable for such <br />uses as a goal: <br /> <br />(i) Class 1 - Cold Water Aauatic Life <br /> <br />These are waters that (1) currently are capable of sustaining a wide variety of <br />cold water biota, including sensitive species, or (2) could sustain such biota <br />but for correctable water quality conditions. Waters shall be considered <br />capable of sustaining such biota where physical habitat, water flows or levels, <br />and water quality conditions result in no substantial impairment of the <br />abundance and diversity of species, <br /> <br />34 <br />