2009-02-26_REPORT - C1982057 (11)

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TABLE 7 Historical and Descriptive Summary of Surface Water Monitoring Sites, Seneca II-W Mine Site Number Date Established/ (Computer ID) Location Instrumentation Periods of Operation Comments, Etc. SW-S2W-SG1 Upper Sage Creek at 1979; none associated 08/80-09/82 No flow measurements made due to beaver (YSS1) 7,620 ft. elevation dam obstructions in stream channel. (SN88W25CDB) Discontinued in 1982. SW-S2W-SG2 Upper Watering Trough 1979; none associated None No data collected. Discontinued in 1982 (WSWT2) Gulch at 7,260 ft. due to change in mine plan. elevation (5N88W28CAD) SW-S2W-SG3 North (009) tributary of 1979; none associated 07/79-11/83 Access problems in 1984 forced relocation 1/2 (WSS3) Sage Creek at 6,900 ft (high Q=VA; low Q- 05-11/84;03-11/85 mile downstream. Discontinued in 1986. elevation (5N8811DBA) B&S) 03-05/86 Baseline site for NPDES 009. SW-S2W-SG4 Lower Sage Creek at 1979; none associated 11/79-12/85 Discontinued in 1986. (WSS4) 6,820 ft. elevation (Q=VA) 03/05/86 (5N88WllBAB) SW-S2W-SG5 Dry Creek at 6,570 ft. 1983; none associated 03/83-12/85 Limited winter monitoring data. (WSDS) elevation (6N88W34OCC) (Q=VA) 03-11/86;03-12/87 Monthly discharge data. 03-12/88; 03-12/89 03/90-present SW-S2W-SG6 Lower (006) tributary 1986; none associated 06-11/86;02-12/87 Site provided baseline data for construction (WSH6) to Hubberson Gulch at (Q=VA) 03-12/88;03-09/89 and operation of Pond 006. Discontinued in 7,070 ft. elevation 1989 due to construction of Pond 006. (5N88W22BBC) Replaced by NPDES 006. SW-S2W-SG7 Middle Hubberson Gulch 1987; none associated 03-11/87;03-11/88 Limited winter monitoring data. (WSH7) at 6,825 ft. elevation (high Q=VA; low Q- 03-11/89;03/90-present Monthly/triannual discharge data. (5N88W16CDA) B&S) SW-S2W-SG8 005 Tributary to Dry Creek 1990; none associated 04/90-07/92 Site to provide data at proposed 005 (WSD8) at 7,170 ft. elevation (high Q=VA; low Pond. Discontinued 07/92 upon construction (5N88W10CDC) Q=B&S) of Pond 005. Replaced by NPDES 005. SW-S2W-SG9 Upper Hubberson Gulch 1997; none associated 8/97-present Upstream of Ponds 016 and 017 (WSH9) at 7,440 ft. elevation Monitored June and September (5N88W34DBA) SW-S2W-SG16 Upper (016) tributary of 1997; none associated 8/97-9/2000 Baseline site for Pond 016 (WSH16) Hubberson Gulch at 7,450 ft. elevation (5N88W27DAD) SW-S2W-SG17 Hubberson Gulch at Pond 1997; none associated 8/97-9/2002 Baseline site for Pond 017 (WSH17) 017 at 7,390 ft. elev. (5NSSW34ACC) 0 i a