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Springs and Seeps <br />• The spring and seep monitoring program samples flow and water chemistry orr springs <br />within aone- mile radius of the underground workings once annually during the late <br />summer of the year, to ensure that geohydrologic changes associated with the mine do <br />not diminish the water quantity or quality of springs. four springs are monitored annually <br />during August (Appendix C). <br />Ponds and Direct Discharges <br />All sediment ponds and direct discharge points are perrnitied under NPDES Permits CO- <br />0000906. Sampling stations for these permits are described below. <br />MDNE-1: NE-001 was a grab sample station from the New Elk Mine water discharge <br />pipe located on the Purgatoire River for NPDES Discharge Permit CO-0000906. 'l'he <br />station was established to monitor the quality and quantity of mine water discharge from <br />the New Elk Mine. During the third quarter of 1989, the mine was sealed and the <br />discharge of mine inflow water was discontinued. <br />NE-001-G: NE-001-G is a site under NPDES Permit No. COG-310069. 'T'his site is <br />used to discharge water from remedial activities at the UST facilities area. NE-00 ]-G is <br />sampled at its outfall prior to discharging into ditch D-lti, which flows into Pond NE- <br />007, asite monitored under NPDES CO-000090G. This site was eliminated during 1999 <br />with reclamation of the remediation system and termination of Permit COG-31 0069 as <br />• approved by CDPI IE. <br />NE-004: A grab sample station of the discharge from the primary spillway of sediment <br />pond 004. This site predominantly handles stormwater runoff' from the New Elk <br />underground development waste pile. <br />NE-005: A grab sample station of the discharge from the primary spillway of sediment <br />pond 005 which treats stormwater and industrial nmoff from the area east of the trucking <br />otlices. This pond was reclaimed in 2003 and is no longer monitored. <br />NE-006: The thickener recycling pond 006 (Prep Plant process water) is a non- <br />discharge facility. <br />NE-007: A grab sample station of the discharge from the primary spillway of sediment <br />pond 007. This site treats stormwater runoff from the East Portal of the New Elk facilities <br />area as well as handling runoff from NE-OOIG andNE-033. <br />NE-008: A grab sample location at the primary spillway outfall of sediment pond 008 <br />located at the base of the Refuse Disposal Area of the New Elk Mine. <br />NE-009: A grab sample station of the New Elk Mine water discharge pipe located in <br />Apache Canyon. The station was established to monitor the quality of mine water <br />discharge from the New Elk Mine, the mine has been inactive and sealed since 1989. <br />n <br />U <br />7 <br />