2011-02-25_REPORT - C1982057 ‎(2)‎

• Permit No: C1982057
• IBM Index Class Name: Report
• Doc Date: 2/25/2011
• Doc Name: 2010 AHR Appendix A, B, and C
• From: Seneca Coal Company
• To: DRMS
• Annual Report Year: 2010
• Permit Index Doc Type: Hydrology Report
• Email Name: SLB
• Email Name: SB1
• Media Type: D
• Archive: No

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TABLE 8
Historical and Descriptive Summary of
Surface Water Monito ring Sites, Seneca II-W Mine
Site Number Date Established/
(Computer ID) Location Instrumentation Periods of Operation Comments, Etc.
SW-S2W-CG1 South (015) tributary of 1979; crest stage gage 06/79-11/83 Discontinued in 1986. Resumed monitoring
(WSSC1) Sage Creek at 7,160 ft. (OVA) 05-11/84;03-11/85 in 1997. Relocated appx. 500 ft. above
elevation (5N88W14DDC) 03-05/86;07/97-10/98 old site due to access problem. Discontinued
in 1998 upon construction of Pond 015
SW-S2W-CG2 Mid-Watering Trough 1979; crest stage gage 08/80-11/82 Data limited. Discontinued in 1982 due to
(WSWTC2) Gulch at 6,980 ft. (Q=B&S) change in mine plan.
elevation (5N88W20DAD)
SW-S2W-FG1 Mouth of Hubberson Gulch 1979; flume gage, 07/79-present Continuous discharge data (except in winter)
(WSHF1) at 6,795 ft. elevation 2.5-ft throat width
(5N88W16BCD) Parshall flume w/
continuous level
recorder. (OVA)
SW-S2W-FG2 Lower Watering Trough 1979; flume gage, 08/80-11/85 Site is upstream of mining,
(WSWTF2) Gulch at 6,920 ft. 0.75-ft throat width 04/87-10/93 Monitoring discontinued 10/93
elevation (5N88W20ACD) Parshall flume w/
continuous level
recorder. (OVA)
SW-S2W-FG3 Middle of reach on Sage 1981; flume gage 04/81-09/83 U.S. Geological Survey discontinued monitoring
(YSSF1) Creek at 7,220 £t. 2.5-ft throat width in at site in 1983.
elevation (5N87W18CDD) Parshall flume with
continuous recorder
(OVA)
SW-S2W-FG4 Lower Sage Creek at 1990; flume gage 09/90-present New site installed late summer 1990
(WSSF3) 6,860 ft. elevation 3.0-ft throat width Continuous discharge data (except in winter).
(5N87W11ACC) Parshall flume w/
continuous recorder
(OVA)
SW-S2W-FG5 Upper Sage Creek at 1990; flume gage 2.5-ft 09/90-present New site installed late summer 1990
(YSSF3) 7,385 ft elevation throat width Parshall Continuous discharge data (except in winter).
(5N87W30BB) flume with continuous Yoast Mine site
recorder ((=VA)
S-1 Tributary to -/none associated 1979, 1983 Flow and water quality of spring fed creek are
(WSPG1) Sage Creek g=B6S 1986-2004 monitored immediately upstream of unregistered
(5N88W14CBB) stock pond. Discontinued 2005.
7,425 ft.
S-5 Tributary to Hubberson -/none associated 1979, 1983 Flow sampled immediately upstream from where
(WSPGS) Creek (5N88W22ACB) g=B&S 1986-2003 road crosses creek. Discontinued 2004.
7,225 ft.
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