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<br />OD25~4 <br /> <br />Table 6: Standards applicable to designated uses, New Mexico <br /> <br />3-101. STANDARDSl APPLICABLE TO ATTAINABLE OR DESIGNATED USES <br />UNLESS OTHERWISE SPECIFIED IN TABLE 5. <br /> <br />A, Cold water Fisherv: Un-ionized ammonia (as N) shall not exceed 0.03 mg/I, <br />dissolved oxygen shall be greater than 6.0 mg/I, temperature shall be less than <br />20 C (68 Fl, total chlorine residual shall not exceed 0.004 mg/I. and pH shall <br />be within the range of 6.6 to 8.8. The acute and chronic standards set out in <br />Section 3-101.J are applicable to this use. <br /> <br />B. Domestic Water Supplv: Waters designated for use as domestic water <br />supplies shall not contain substances in concentrations that create a lifetime <br />cancer risk of more than one cancer per 100,000 exposed persons. The <br />following numeric standards shall not be exceeded: <br /> <br />Dissolved arsenic <br />Dissolved barium <br />Dissolved cadmium <br />Dissolved chromium <br />Dissolved lead <br />Total mercury <br />Dissolved nitrate (as N) <br />Dissolved selenium <br />Dissolved silver <br />Dissolved cyanide <br />Dissolved uranium <br />Radium-226 + radium-228 <br /> <br />0.05 mg/I <br />1. mg/I <br />0.010mg/1 <br />0.05 mg/I <br />0.05 mg/I <br />0.002mg/1 <br />10. mg/I <br />0.05 mg/I <br />0.05 mg/I <br />0.2 mg/I <br />5.0 mg/I <br />30.0 pCi/1 <br /> <br />C. Hiah Qualitv Coldwater Fisherv: Dissolved oxygen shall be greater than 6,0 <br />mg/I or 85% of saturation, whichever is greater; temperature shall be less than <br />20 C (68 F); pH shall be within the range of 6,6 to 8,8; un-ionized ammonia <br />(as N) shall not exceed 0.02 mg/I; total chlorine residual shall not exceed <br />0.004 mg/I; total phosphorus (as P) shall be less than 0.1 mg/I;2 total <br />inorganic nitrogen (as N) shall be less than 1.0 mg/I;2 total organic carbon <br />shall be less than 7 mg/I; turbidity shall be less than 10 NTU (25 NTU in <br />certain reaches where natural background prevents attainment of lower <br />turbidity); and conductivity (at 25 C) shall be less than a limit varying between <br />300 pmhos/cm and 1 ,500 pmhos/cm depending on the natural background in <br />particular stream reaches (the intent of this standard is to prevent excessive <br />increases in dissolved solids which would result in changes in stream <br />community structure). The acute and chronic standards set out in Section 3- <br />1 01.J are applicable to this use. <br /> <br />27 <br /> <br />)0 ' <br />