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Ranney, Berry <br />Page 2 <br />July 27, 1998 <br />• It appears that the groundwater pazameter list is used for spring water also. <br />However, It is not cleaz whether total or dissolved analyses have been <br />performed for spring water monitoring data. <br />• Appendix No. V states that groundwater samples will be analyzed for <br />dissolved parameters except as noted. However, on several of the <br />groundwater monitoring data pages certain analytes are marked as <br />`Dissolved' which is contradictory to what is stated in the Appendices. <br />3. It was noted that water quality in Naturita Creek is generally poor. Sulfate is elevated above <br />the surface water quality standard (Basic Standards and Methodologies for Surface Water) <br />for all sample collection dates including baseline at both the upper and lower sample <br />locations. Dissolved iron and manganese were also elevated above the respective surface <br />water standards for several sample dates for both upper and lower Naturita Creek. <br />4. Samples collected from Lower Broad Creek in January of 1998 showed elevated levels <br />(above baseline) for conductivity,total dissolved solids, and iron. No other significanttrends <br />in water quality were noted for any of the other surface water sample locations. <br />5. Lower Broad Creek has two surface water data tables presented. Data is presented for the <br />5/09/91 sample on both tables. The pH and conductivity data aze not consistent between <br />each table. <br />6. With the exception ofSpring SP-6, all springs within the permit appear to have dried up prior <br />to the commencement of mining. Spring SP-6 dried up and is reported as damp at around <br />the time mining began in the second quarter of 1992. There does not appear to be any <br />significant impacts to springs within the permit area as a result of mining operations. <br />7. Alluvial wells AW-6 and AW-7 show an overall increase in dissolved iron, dissolved <br />manganese, and total dissolved solids since baseline data were collected. Sulfate and <br />dissolved manganese exceeded the secondary drinking water standards (Basic Standazds for <br />Groundwater) in well AW-6 for all sample collection dates. Dissolved iron exceeded the <br />secondary drinking water standazd on two occasions in well AW-6. Sulfate and dissolved <br />manganese also exceeded the secondary drinking water standazds in well AW-7 for all <br />sample collection dates. Dissolved iron exceeded the secondary drinking water standazd in <br />well AW-7 on 10/1/95. <br />8. Bedrock well B W-1 had exceedances of the secondary drinking water standards for sulfate <br />and dissolved manganese for all sample collection dates. Dissolved iron exceeded the <br />secondary drinking water standard on three occasions. Sulfate exceeded the secondary <br />