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<br /> , <br /> Station USGS Gage No. <br /> d. Yampa R. at Steamboat Springs, 2395 <br /> Colorado <br /> <:> <br />. OJ e. San Juan R. at Archuleta, NM 3555 <br />N <br /> <:.P f. San Juan R. Farmington, NM 3650 <br /> at <br /> g. Green R. nr Green R., Wyo. 2170 <br /> h. Green R. nr La Barge, Wyo. 2094 <br /> <br />B. Parameters. The following parameters were chosen as those most <br />pertinent to ambient water quality conditions and to effluent <br />characteristics of emerging energy technologies. The parameters <br />represent a consensus from several technical reports by EPA <br />and others, and from consultations with EPA and the Colorado <br />Department of Health. <br /> <br /> l. NH3 (un-ionized) 12. COD (Storet No.335) <br /> 2. pH 13. N03 <br /> 3. temp 14. suspended solids <br /> 4. DO 15. TDS, including the following: <br /> 5. S04 a. Ca, diss. <br />. 6. sulfide b. Mg, diss. <br /> 7. phenols c. F, diss. <br /> 8. cyanide d. Na, diss. <br /> 9. Fe e. K, diss. <br /> 10. Mn f. Diss solids, sum <br /> 11. BODS <br />C. Analysis <br /> <br />1. Uistoric trend analysis (scatter plot) for period of record <br />to present for all parameters at all stations - use mean <br />annual values where appropriate. <br /> <br />2. Average concentrations (scatter plot) for appropriate parameters <br />at all stations; high flow period Nov - Jun for all years of <br />record <br /> <br />. <br /> <br />3. Average concentrations (scatter plot) for appropriate parameters <br />at all stations; low flow period Jul - Oct for all years of <br />record <br />