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Table 13 (cont.l: Inorganic parameters for designated uses, Colorado (1) For class 2 warm water aquatic life segments, where table:value standards are to be applied, a specific chronic standard In the:O.06 to 0.10 mgll range for un.ionized ammonia shall be 'selected based upon the aquatio life,present or to be proteoted and whether the -waters have been adversely imp8ct~d by factors other than ammonia. The Commission may consider 8 standard higher than 0.08 mg/l un-ionized ammonia lNhere 8 higher risk of sublethal. effects is justified by habitat Iimita~ons or other water quality faotors. Where ,8 site-specificjstudy has been oonducted. the Commission may apply appropriate alternative chronic standards in accordance with saiotion 3.1.7(1 )(bllill). Acute stendards for cold and warm water! class 2 segments generally shall be established at the re~pective levels listed in table 13 for class 1 segments, except where site-specific information submitted justifies an alternative acute standard. (2) To be applied at the point of water supply intake. (3) In order to provide a reasonable margin of safety to allow for unusual situations such as extremely high water ingestion or nitrite formation in slurries, the N03-N plus N02-N content iri drinking waters for livestook and poultry should be limited to 100 ppm or less, and the N02-N content alone be limited to 10; ppm or less. (4) FT = 10..03 120-TCAPI; rCAP less than or equal to I less than or equal to 30 FT = 10..03 (20-T); Q. less or equal to I less then or equal to rCAP TCAP = 200 C cold water aquatio life species present TCAP = 250 C oold water aquatio life species absent FPH = 1; l! less than ll.!:! less than or equal to i FPH = l..:!:...1Q(7.4-pHI; 6.5 less than or equal to J2tf.less than or equal to g 1.25 . FPH means the aoute pH adjustment faotor; defined by the' above formulas. FT means the aoute temperature adjustment factor. define~ by the above formulas. T means the temperature measured in degrees Celsius TeAP means temperature CAP; the maximum temperaturei which affects the toxiolty of ammonia to salmonid and noo- salmonid fish groups. 1 NOTE: If the oalculated acute value is less than the c8loula~ed chronic value, then the calculated chronic value shall be used as the acute standard. (5) Salmonids and other sensitive fish species present: Acute = 0.10 (0.59 . [Cn +3.901 mgR N02-N Chronic = 0,10 (0.29 . [cn +0.53) mgR N02'N (upper limit for cr = 40 mgm Salmonids and other sensitive fish species absent: Acute = 0.20 (2.00 ' [cn +0.73) mgll N02-N Chronic = 0.10 (2.00' [cn +0.73) mgR N02'N (upper limit for cr = 22 mgm (en = Chloride ion concentration (6) A combined total of nitrite and nitrate at the point of intake to the domestic water supply shall not exceed 10 mg/l. Taken,from Colorado Water Quality Control Commission 1993al 48