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3.3 Surface Water Monitorins <br />Monitorin¢/SamplinQ Requirements: Exhibits 14-7 through 14-10 (PR03-6, May 2003), outline the quantity <br />and quality of area stream flows, the discharge from sedimentation control ponds, mine water discharge, and the <br />quantity and quality of springs. Monitoring sites and sampling frequencies are set forth in Exhibit 14, Table A, <br />and in CDPS Permits CO-0027154, CO-0036684, and CO-0042161. Site locations are shown on Map 13A, <br />Hydrologic Monitoring Plan of TR03-42 (as well as in Figure 2 of this AHR). Table A of Exhibit 14 specifies <br />three seasonal monitoring episodes (i.e. October to February, March to May, and June to September), each of <br />which are further divided into two general categories of sampling frequency: 1) "Regular" monitoring [ha[ is <br />done continuously, and 2) "Contingent" monitoring that is done only when there is a discharge from underground <br />mine pumping at surface discharge sites 109 and/or 115. All required monitoring/sampling instances were <br />completed during 2003. <br />2003 surface water data is provided in Tables 39 through 58. 2003 Water quality parameters for these sites were <br />typically within previously established ranges, unless otherwise discussed below. Due to the loss of the RAG <br />data base during TCC's transition to Peabody, the POR data for surface water sites was only available through <br />September of 2002. This will be updated once [he new Peabody data base is established, and will be included in <br />POR tables in the 2004 AHR. In the interim, POR data through September 2002 has been provided in the 2003 <br />AHR, located in Tables 39a through SSa and 39b through SSb. <br />• Foidel Creek: Five surface flow monitoring sites on Foidel Creek in the vicinity of the TCC mine portals and <br />facilities areas are utilized. Site 800 and site 14 are located upstream of the portal. Flows at site 800 (Former <br />USGS Station 09243800) were monitored by TCC in 2003. Site 8 is located a short distance downstream of the <br />portal area and is monitored in conjunction with alluvial well 001-S-5. Site 900 is located further downstream. <br />Site 304 is located further downstream above the confluence with Middle Creek and is monitored in conjunction <br />with alluvial weI1008-AV-2. Flows at site 900 (Fortner USGS Station 09243900) were also monitored by TCC <br />in 2003. Monitoring requirements at site 304 had been limited to monthly water levels and quarterly water <br />quality sampling. Note that Site 304 was eliminated from monitoring requirements in early 2003 per TR03-42. <br />Tables 39 through 43 provide summaries of the 2003 Water Year data collected at each site. Tables 39a, 40a, and <br />41a provide POR statistical summaries of collected data at each site. Pigures Sb to 63 through 106 to 109 <br />provide graphical representations of water levels and selected water quality parameters recorded aC each site. <br />Typical flow patterns were exhibited at these sites with spring runoff periods accounting for the peak flows <br />observed. At all of these sites, the inverse relationship between flow and field conductivity continues to be <br />evident. 2003 Water quality parameters for these sites were within previously established ranges. <br />Fish Creek: Nine surface flow monitoring sites are utilized on Fish Creek. Site 16A replaced site 16 in 2000, <br />and is located upstream of the Fish Creek Borehole discharge site 115. Historical data for site 16 may be found in <br />previous AHRs. Site 307 is located approximately one mile downstream of the Fish Creek Borehole mine <br />dewatering site and is monitored in conjunction with alluvial well 006-AZ-3. Site 302 is located approximately <br />two miles downstream of the Fish Creek Borehole mine dewatering site. Site 305 is located upstream of the Fish <br />Creek Tipple and is monitored in conjunction with alluvial well 008-AU-3. Site 27A is located immediately <br />11 <br />