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:. moderate salinity, pH ranges from 7.4 to 8.7, and hardness ranges from 107 mg/L to <br />435 mg/L. Total dissolved solids in the samples ranged from 210 - 980 mg/1 <br />(filterable residue). An increase in TDS of 10 mg/L has been noted between the <br />upstream and downstream stations on the Purgatoire River, likely due to higher TDS <br />discharges from coal bed methane activities in Lorencito Canyon. <br />Spring and Seep Stations <br />Water quality sampling during the baseline period revealed slightly to moderately <br />alkaline, slightly hard, calcium-sodium bicarbonate water, with total dissolved solids <br />ranging from 300 mg/L to 710 mg/L. Total alkalinity in the samples ranged from <br />223 mg/L to 409 mg/L, and hardness ranged (as CaCO3) from 214 mg/L to 388 <br />mg/L. pH ranged from 6.70 to 9.15. <br />Monitoring of spring SPJC-1 was terminated in 2007. Discharge from CBM Wells <br />greatly exceeded flow from the spring, intermingling with the flow and masking <br />sample results for the spring's flow rate and quality. <br />0 <br />Pond Sites <br />In addition to the springs, seeps, and streams, ponds are also present on the site. <br />These ponds are utilized to provide water for livestock and wildlife. A total of <br />nineteen ponds were located by ground and aerial surveying methods (Map 2.04.7- <br />1). A large number of these ponds (eight) are located in the Cow Canyon drainage. <br />The other ponds are scattered over the site, with generally no more than two in any <br />drainage. All ponds located appear to be artificial, with man-made dams at one end. <br />Water level in the ponds varies from season to season depending on runoff received <br />in the drainages and from CBM wells; however, all ponds consistently hold water. <br />Monitoring of pond (PJC-1) was terminated at the end of 2006. <br />Sediment control ponds 5, 6, 7, 8, 9A and 9B and 10 have been constructed to treat <br />disturbed area runoff. Discharge from Ponds 8, and 9B occurred during the third <br />quarter of 2008. Quarterly Discharge Monitoring Reports (DMRs) have been filed <br />with the Colorado Department of Public Health and the Environment with copies to <br />the Division. <br />• <br />8