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)A - iii <br />TABLE 5 <br />CDOH 2008 Ground Water Agricultural Use Standards <br />Aluminum, mg/l A 5.0 <br />Arsenic, ug/l 100.0 <br />Boron, ug/l H 750.0 <br />Cadmium, ug/l 10.0 <br />Chromium, ug/l 100.0 <br />Copper, ug/l 200.0 <br />Fluoride, mg/l 2.0 <br />Iron, mg/l 5.0 <br />Lead, ug/l A 100.0 <br />Manganese, mg/l ° 0.2 <br />Mercury, ug/l A 10.0 <br />Nickel, ug/l 200.0 <br />Nitrate/Nitrite as N, mg/l A 100.0 <br />Nitrite as N, mg/l A 10.0 <br />pH (S.U.) 6.5-8.5 <br />Selenium, ug/l 20.0 <br />Zinc, mg/l 2.0 <br />A . CDOH livestock standard, without this footnote indicates a CDOH <br />irrigation standard. Irrigation standard for lead is 5000 ug/1. <br />B : CDOH standard is set to protect plant sensitive species. Standard <br />for most species found in Routt County is 5000 ug/1. <br />C : This standard in only appropriate where irrigation water is applied <br />to soils with pH values lower than 6.0. <br />• <br /> <br />0