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• summary o£ standards that were exceeded. Given is pareatheaie is the source and use of each standard. Although the CDOH dose not indicate between livestock and irrigation uses in their surface water (SN) agricultural standards, they have done so in their similar ground water (GOP) agricultural standards (see Table 5). For the sake o£ discussion, SCC chooses to use those ground water vas atandarde for surface water use evaluation. Parameter Number of Sites aluminum (CDOH, Gw, livestock) 1 pH (CDOH, GH, irrigation) 6 fluoride (CIIOH, 6W, irrigation) 1 iron (CDOH, GOP, irrigation) 1 manganese {CIbH, SOP, irrigation) 13 nickel (CDOH, SW, irrigation) 1 dissolved solids (U3EPA, irrigation) 18 dissolved aolide (wyomiag, livestock) 1 sulfate (California, irrigation) 20 • Review of this table indicates that only two CDOH surface water agriculturnl use etanderda were exceeded. Nickel was exceeded at SDOil Spring 6 (SSSPG6). However, this water is substantially diluted before it leaves the permit boundary (notice ao exceedeacee at lower Grassy Creek (SBG2)). The manganese etaadard was exceeded at thirteen sites. However, ae noted previously is the ground water discussion, the relatively low CIpH standard of 0.2 mg/1, according to the BPA, applies to plnnta grown in acidic soils. Ia alkaline Boil e, as nre found in the 9eaeca II region, a more ayyroDriate (EPA) etaadard would be 10 mg/1. with the exception of SDOil Spring 6, the maximum tnangaaeee value observed this year was 2,11 mg/1 et Spoil Spring 10 (SSSPGI0). Spoil 5yring 6 had a manganese value this year of 13.5 mg/1. However, ae stated greviovely is this Daragraph, water from this sgrinq ie diluted before leaving the mice site. All other surface water sites and syringe had manganese values lase then 1.0 mg/1. It should also be noted that the site oa Grassy Creek (SSGl) that is uDetream of Seneca II discharges also experienced exceedeacee of the 0,2 mg/1 standard. ~J 19