2008-03-21_PERMIT FILE - C1980007A (47)

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• • PR-12 Exhibit 71 Table 7 Summary of the Surface Water Monitoring Plan 18 Field WQ Annual Lab Water Period of Record Monitoring Station at Monitored Area Flow Measurement (pg EC, T) Quality Surface Stations Upper N. Fork Drainage Basin Upper Deep Creek Up-gradient of SE mine panels Instantaneous, 3 x Year "' 3 x Year Peak Flow Period t" 1996 to present Lower Deep Creek otam-gradient of SE mine panels Instantaneous, 3 x Year t4' 3 x Year Peak Flow Period o' 1996 to present ox Canyon oNm-gradient of Box Canyon Instantaneous, 3 x Year 3 x Year Peak Flow Period o' 1999 to present Panels North Fork Upper (USGS) Up-gradient of mine facilities and Continuous 3 x Year Low Flow Period, Peak 1977 to present mine discharge. Irrigation Season Up-gradient of thine surface Upper Sylvester Gulch facilities area and NE mine Instantaneous, 3 x Year 3 x Year Peak Flow Period 1977 to present panels o,Am-gradient of mine water Low Flow and Peak Flow Middle Sylvester Gulch discharge point and NE mine Continuous 3 x Year Periods u" 1977 to present panels own-gradient of mine surface Lower Sylvester Gulch facilities area and NE mine Instantaneous, 3 x Year 3 x Year Peak Flow Period 1977 to present panels Upper Raven Gulch East of W. Flatiron Area Instantaneous, 3 x Year 3 x Year Peak Flow Period 2005 to present Lower Raven Gulch East of W. Flatiron Area Instantaneous, 3 x Year- 3 x Year Peak Flow Period 2005 to present Surface Stations Lower N. Fork Drainage Basin North Fork Lower own-gradient of mine facilities stantaneous, 3 x Year 3 x Year Low Flow Period, Peak 1935-present and mine discharge. irrigation Season Lower Gribble Gulch W ithin completed NW mine lInstantaneous, 3 x Year 3 x Year Peak Flow Period 1977 to present anel area Surface Stations Minnesota Creek Drainage Basin Lick Creek Flume Up-gradient of un-mined SE coal Continuous 3 x Year Peak Flow Period'" 1977 to present ease area Up-Gradient of Dry Fork and Upper Minnesota Creek (USFS) west of un-mined SE coal lease Continuous 3 x Year Peak Flow Period t" 1977 to present area Deep Creek Ditch (baseline) t4' South of the Divide Area Instantaneous 6 x Year 6 x year (2) 2006 Deep Creek Ditch (normal t4' South ofthe Divide Area Continuous 3 x Year Peak Flow Period 2007 to future ] 977 to present Upper Dry Fork Flume (baseline) South of the Divide Area Continuous and Instantaneous 6 x Year 6 x Year ''' Relocated in 2005 Baseline in 2006 Upper D Fork Flume Dry (normal) Continuous 3 x Year Peak Flow Period 1977 to present 2007 -future Middle Dry Fork Flume South ofthe Divide Area Continuous 3 x Year Peak Flow Period o' 1977 to present East Gulch, East of Horse Gulch South of the Divide Area Instantaneous, 3 x Year 3 x Year Peak Flow Period o' 1977 to present Deer Creek (baseline) South ofthe Divide Area Instantaneous, 6 x Year 6 x Year 6 x Year tZ' 2005 Deer Creek (normal) Instantaneous, 3 x Year 3 x Year Peak Flow Period 2006 to future Poison Gulch (baseline) South of the Divide Area Instantaneous, 6 x Year 6 x Year 6 x Year t2' 2005 Poison Gulch (normal) Instantaneous, 3 x Year 3 x Year Peak Flow Period 12) 2006 to future Nfinnesota Reservoir Flume (baseline)t4' South of the Divide Area Continuous 6 x Year 6 x Year 2006 Minnesota Reservoir Flume South ofthe Divide Area Continuous 3 x Year Peak Flow Period 2007 to future (normal)" o,,--gradient of SE mine Lower Dry Fork Flume panels and un-rmmined SE coal Continuous 3 x Year Peak Flow Period 1977 to present ease area South Prong Creek"' Preliminary INIouth of South Prong Creek Single Sample Single Sample 2005 South Prong Creek"'Baseline Mouth of South Pron Creek g Instantaneous, 6 x Year 6 x Year Peak Flow Period t=' Baseline starting in 2017 ower M mmesota Creek (USGS) own--_radient of Dry Fork, SE Continuous 3 x Year Peak Flow Period t" 1937-1947 and 1985 to resent mime panels, and SOD area Stations listed upstream to downstream relative to WEM " For sites with more than 5 years of data, lab parameters include TSS, TDS, Cond., pH, and Fe (dins 8 tot). " For sites ..ith less than 5 years data see Table 6 " North Fork Stations lab parameters include Table 6 plus chromium. nickel. silver. cyanide, nitrite, and nitrate " New additions to monitoring program September 2007 HPdroGeo, Inc. 0