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10/16/2019 State.co.us Executive Branch Mail-Fwd:GEC monitoring wells <br /> : ' ►; O STATE F <br /> STATE DO DRMS—CoalAdmin - DNR, DNR<dnr—drms—coal—admin@state.co.us> <br /> COLO <br /> Fwd: GEC monitoring wells <br /> 1 message <br /> Trujillo - DNR, Zach <zach.trujillo@state.co.us> Mon, Oct 14, 2019 at 7:13 AM <br /> To: DNR DRMS_CoalAdmin - DNR<dnr—drms—coal—admin@state.co.us> <br /> attached is correspondence from Dr. Corley to the Division in regards to the GEC Mine, C-1981-037. <br /> ---------- Forwarded message--------- <br /> From: Trujillo -DNR,Zach <zach.trujillo@state.co.us> <br /> Date: Mon, Oct 14, 2019 at 7:12 AM <br /> Subject: Re: GEC monitoring wells <br /> To: Doug <ajjc@att.net> <br /> Cc: Jason Musick- DNR <jason.musick@state.co.us> <br /> Dr. Corley, <br /> I'll look into this and provide you with any information I can find. <br /> Sincerely, <br /> On Fri, Oct 11, 2019 at 10:22 AM Doug <ajjc@att.net>wrote: <br /> Zach, <br /> sent the email below to Jim Stark earlier this week. Could you answer my questions, please? <br /> Doug Corley <br /> Begin forwarded message: <br /> From: Doug <ajjc@att.net> <br /> Date: October 6, 2019 at 9:37:28 AM MDT <br /> To: Jim.Stark@state.co.us <br /> Subject: GEC monitoring wells <br /> Jim, <br /> In 1993 the Division drilled several wells in the GEC underground fire area. I think this fire is known as <br /> the Black Diamond or the Double Dick fire. The drill holes were cased with steel pipe and caps and were <br /> equipped with a thermistor to measure and monitor the temperature at the bottom of the drill hole. I do <br /> not know how many of the drill holes hit solid coal or hit voids. We have found ten of these wells in the <br /> SE1/4 Section 24. Some have casing a foot or more above ground level and others are almost even with <br /> ground level. There is a cap with the Division markings to monument this work. <br /> <image1.jpeg> <br /> Are there any records of the temperature monitoring results? One of the casing caps is padlocked. Is <br /> there a key for the lock? Is there a map showing the location of all of the wells? The thermistor cables <br /> have a two prong connector. Is there any way to know what instrument was used to measure the <br /> temperature? What should be done now with these wells? <br /> Doug Corley <br /> https://mail.google.com/mail/b/AH1 rexSrBUlaKnOUjdkdkS9huG1 hcKMeuHVDpji2Hxp8UoCuJpzd/u/O?ik=deb7fOcd20&view=pt&search=all&permthid=... 1/2 <br />