Laserfiche WebLink
r <br />L....~ <br /> <br /> <br />Finally, Spoil Spring 4 will be added to Table 1. This spring exists just above Pond 006. <br />In the Ground Water section of Table 1, monitoring at the four GW-S2W4 series wells (two <br />Wadge overburden wells, one Wadge coal well and one Wolf Creek coal well) will be <br />discontinued. These were abandoned in 2003 because of failures caused by their proximity to <br />a highwall and also by safety concerns. Monitoring at the five W-24 series wells will also be <br />discontinued. They failed in a landslide that occurred in the spring of 2003. Abandonment of <br />the W-24 series wells will be performed in 2005. Replacement wells for the 4 and 24 series <br />wells were drilled and completed in 2004. They consist of a Wadge overburden well (WOV25), <br />a Wadge coal well (WW25), a Sage Creek overburden well (WSOV25), a Sage Creek coal well <br />(WSC25), a Wolf Creek overburden well (WWCOV25), a Wolf Creek coal well (WWC25), and a <br />Wolf Creek underburden well (WWCU25). <br />Table 2, Surface Water Parameter List, has been revised, Monitoring for acidity, aluminum, <br />barium, fluoride, phosphate and molybdenum has been discontinued. These parameters are <br />not listed in the scream standards set forth by the CDPHE in Regulation 33, Classification and <br />Numeric Standards for Upper Colorado River Basin (Yampa River Segments 13d and 13e). <br />There are also no agricultural standards for these parameters in Regulation 31, Basic <br />Standards for Surface Water. The "Analysis Technique" for cadmium, chromium, copper, lead, <br />manganese, nickel, selenium, silver and zinc has been changetl from "total recoverable" to <br />"potentially dissolved". This is the technique now mandated by the CDPHE in Regulations 31 <br />artd 33. Finally, for similar reasons, the form of iron analyzed will be "total recoverable". <br />Table 3, Ground Water Parameter List, has also been revised. Monitoring for barium, <br />molybtlenum, phosphate, ammonia and silver will be discontinued. These parameters are not <br />listed in the ground water agricultural standards set forth by the CDPHE in Regulation 41, <br />Basic Standards for Ground Water. <br />Technical Revision 58 (2007) Monitoring Program Changes <br />See page 75-3a-11 <br />TR-58 <br />15-3a-3 <br />Revised 04107 <br />