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A-20 <br />TABLE 9 <br />CDOH Surface Water Agricultural Use Standards <br />Arsenic, ug/1 n <br />Boron, ug/1 ° <br />Cadmium, ug/1 " <br />Chromium, ug/1 " <br />Copper, ug/1" <br />Lead, ug/1 ` <br />Manganese, mg/1 " <br />Nickel, ug/1 ' <br />Nitrate, Nitrogen, mg/1` <br />Nitrite, Nitrogen, mg/1` <br />Selenium, ug/1 " <br />Zinc, mg/1 ° <br />A CDOH surface water agricultural standard. <br />groundwater irrigation standard. <br /> <br />100.0 <br />750.0 <br />10.0 <br />100.0 <br />aoo.o <br />100.0 <br />o.a <br />200.0 <br />100.0 <br />10.0 <br />ao.o <br />a.o <br />Same as the CDOH <br />B CDOH surface water standard is set to protect sensitive plant <br />species. Standard for plant species grown in Routt County ie 5000 <br />ug/1. <br />C CDOH surface water agricultural standard. Same as the CDOH <br />groundwater livestock standard. <br /> <br /> <br />