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Table 11— Footnotes <br />(1) <br />Chronic: <br />Acute: <br />I <br />For Fish Early Life Stage Present (elsp): <br />0028(25 -T) <br />chronic elsp = 0.0577 2.487 (1 + 107688-pH +I+ 10 pH -7688 *MIN 2.85,1.45 * 10 ) <br />For Fish Early Life Stage Absent (elsa): <br />0.0577 2.487 * * 0028•(25- A /A.r(T.7)) <br />chronic elsa = 1 + 107 688 -n" + 1 + 1Op/1-7688 ) 1.45 10 <br />For salmonids present (sp): <br />0.275 39.0 <br />acute sp = 1 + 107204-pH + 1 + 10 p1l -7 204 <br />For salmonids absent (sa): <br />0 41 1 58.4 <br />acute sa = 1 + 107 204 -r1/ + 1 + 10 2i1/ -7 204 <br />(2) In order to provide a reasonable margin of safety to allow for unusual situations such as <br />extremely high water ingestion or nitrite formation in slurries, the NO3 -N plus NO2 -N content in <br />drinking waters for livestock and poultry should be limited to 100ppm or less, and the NO2 -N <br />content alone be limited to 10ppm or less. <br />(3) Salmonids and other sensitive fish species present: <br />Acute= 0.10 (0.59 " [Cl- ] +3.90) mg /I NO2 -N <br />Chronic= 0.10 (0.29 " [Cl- ] +0.53) mg /I NO2 -N <br />(upper limit for Cl- =40 mg /1) <br />Salmonids and other sensitive fish species absent: <br />Acute= 0.20 (2.00 * [Cl- ] +0.73) mg /I NO2 -N <br />Chronic =0.10 (2.00 *[Cl- ] +0.73) mg /I NO2 -N <br />[Cl- J = Chloride ion concentration <br />(upper limit for Cl- =22 mg /1) <br />54 <br />