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M <br />C. Conductivity ;lab � F:eTd) <br />d. Temperature (Field) <br />e. Iron <br />f. oil and Grease <br />g. Total Suspenaed Solids <br />Quarterly Samolino For: <br />a. Total Dissolved Solids <br />Colowyo inspects sediment ponds quarterly and surveys <br />sediment volume annually. Results from inspections and surveys <br />r1ii'. be in the annual report. <br />z. Surface "Mater - Colowyo will conduct the following monitoring and <br />sampling program on Goodspring and Taylor Creeks. As stated in <br />the September 28, 1982 "Proposed Decision and Findings of <br />Compliance For the Colowyo Coal Corroany Colowyo ti i ne" ; monthly <br />monitoring will not be conducted during the winter months when <br />streams are iced over. Two sampling locations are on Goodspring <br />Creek, one upstream from Streeter Fill and one downstream from <br />Streeter Fill. One sampling location is on Taylor Creek <br />immediately above its confluence into Wilson Creels. The sample <br />sites are located on '.later Monitoring Sites For Permit `to. C -0I9- <br />81 (Map 37). <br />Monthly SamoTino For: <br />a. <br />FH <br />b. <br />Conductivity <br />c. <br />Temperature <br />d. <br />Total Suspended Solids <br />e. <br />Flow <br />quarterly Sam, olina For: <br />a. <br />Flow <br />b. <br />PH <br />C. <br />Conductivity <br />d. <br />Total Dissolved Solids <br />e. <br />TotZl Suspended Solids <br />f. <br />Bicarbcnate iHCO;) <br />g. <br />Calcium (Ca+ )^ <br />h. <br />Magnesium (Mg"') <br />i. <br />Ammcnia (NH3) <br />j. <br />Nitrate -Nitrite <br />k. <br />Phosphate (PO4-3as P) <br />1. <br />Sodium (Na*) <br />M. <br />Sulfate (504-) <br />n. <br />Arsenic (As)' <br />o. <br />Iron - total <br />P. <br />Lead (Pb) <br />q. <br />Manganese (Mn) <br />r. <br />Mercury (Hg) <br />S. <br />Selenium (ze) <br />t. <br />Zinc (Zn) <br />Rule 4 Performance Standards 4-20 Revision Date: 4/2/18 <br />Revision No.: RN -07 <br />