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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 Itwo <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 a <br />highwall and also by safety concerns. Monitoring at the five W-24 series wells will also 6e <br />discontinued. They failed in a lantlslide 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 comp!/e)ed in 2004. They consist of a Wadge overburden well (WOV25),t/ <br />a Wadge coal well IWW25.y, a Sage Creek overburden well (WSOV2511/a Sage Creek coal elf <br />(WSC25) a Wolf Creek overburden well (WWCOV251, a Wolf Creek coal well (WWC25 and a <br />Wolf Creek underburden weI11WWCU251. <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 not <br />listed in the stream 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). There <br />are also no agricultural standards for these parameters in Regulation 37, Basic Standards for <br />Surface Water. The "Analysis Technique° for cadmium, chromium, copper, lead, manganese, <br />. nickel, selenium, silver and zinc has been changed from "total recoverable" to "potentially <br />dissolved". This is the technique now mandated by the CDPHE in Regulations 31 and 33. <br />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 />molybdenum, 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, Basic <br />Standards for Ground Water. <br /> <br />TR-52 15-3a-3 Revised 03!05 <br />