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10/16/2019 State.co.us Executive Branch Mail-Re:GEC monitoring wells <br /> : ' ►; O STATE F <br /> STATE DO DRMS—CoalAdmin - DNR, DNR<dnr—drms—coal—admin@state.co.us> <br /> COLO <br /> Re: GEC monitoring wells <br /> 1 message <br /> Trujillo - DNR, Zach <zach.trujillo@state.co.us> Tue, Oct 15, 2019 at 12:51 PM <br /> To: Doug <ajjc@att.net> <br /> Cc: Jason Musick- DNR<jason.musick@state.co.us>, Jim Stark- DNR <jim.stark@state.co.us>, DNR DRMS_CoalAdmin - <br /> DNR<dnr—drms—coal—admin@state.co.us> <br /> Dr. Corley, <br /> Attached is the project close out report which includes maps and drill logs. It appears that no temperature readings were <br /> taken from the monitoring wells and no information on a type of measuring instrument was provided. I was informed that <br /> the AML program does have keys for locked features for past projects but would need to have the associated lock <br /> identification number to determine which key. If access is needed to the well, I was informed that you are free to cut and <br /> removed the lock. After reviewing the attached report, it does not appear that any additional work will be performed with <br /> monitoring wells. If you have any other questions, feel free to contact me. <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 /> lmC 0 L 0 R A D 0 <br /> -.ao Iwo Division of Reclamation, <br /> rM Mining and Safety <br /> Department of Natural Resources <br /> Zach Trujillo <br /> Environmental Protection Specialist <br /> https://mail.google.com/mail/b/AH1 rexSrBUlaKnOUjdkdkS9huG1 hcKMeuHVDpji2Hxp8UoCuJpzd/u/O?ik=deb7fOcd20&view=pt&search=all&permthid=... 1/2 <br />