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April 17, 2012 C- 1981 - 014 /Southfield Mine KAG <br />using a hand -held instrument (shown at right). No methane was detected. A brass tag stamped <br />with the number 1205400 was noted on the side of the well casing. According to Mr. Patterson, <br />this tag was attached by the Division of Water resources at some point in the past. <br />To determine whether the well casing was open to the mine void, entirely or partially or not at <br />all, the plan was to add water into the well casing in an attempt to fill the casing, then measure <br />the level as it dropped over time. Annual Hydrology Report data indicates well MW -NW is 380 <br />feet total depth and completed in the mine void at 360 -380 feet. Mr. Rutherford centered the <br />water hose over the well casing and opened the valve on the water truck to the fully open <br />position. Water immediately began entering the well bore rapidly by gravity flow (shown <br />below). Between 5 and 10 minutes later, the flow decreased as the water truck emptied the last <br />of the 1500 gallons into the well bore. Mr. Patterson estimated that 1500 gallons is <br />approximately 3 well bore volumes. All flow entered the well bore and did not at any time fill <br />the well bore to any noticeable level. Within about one minute after all water was added, most of <br />the rushing water sound ceased in the well bore. <br />t' rM4411l�� f J'J * ' � 6 <br />y <br />1� <br />Mr. Patterson again measured for the presence of methane prior to any attempt to measure the <br />water level. None was detected. At that point, we decided to try to measure the well for water <br />level. <br />Number of Partial Inspection this Fiscal Year: 7 <br />Number of Complete Inspections this Fiscal Year: 3 <br />Page 3 of 6 <br />