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Lysimeters have been checked quarterly throughout the year and have remained dry. <br />Sampling of the San Luis town wells and The Shalom Ranch well and headgate occurred <br />monthly and results have been forwarded to the applicable parties. <br />The underdrain at the base of the tailings embankment was monitored monthly for rate of <br />seepage. The underdrain continually flowed at an average of 30 gpm. <br />Staff gauges were read daily from April -June and weekly during the other months. RS-4 and <br />RS-6 continue to be dry. The staff gauges received routine maintenance durino the year <br />The tailings embankment piezometers have been checked and monitored montnly. <br />The collection pond leak detection system was sampled and pumped monthly for eight <br />months. The system was frozen in the months of December, January, February and March. <br />The return flow in the system averaged 35 GPAD for 1999. <br />As specified in the approved TR-010, weekly and monthly pond compliance retorts have <br />been submitted to the CDMG. <br />As the result of summer rainfall a total of 11,487,200 gallons of water was transported from the <br />evaporation pond to the tailings impoundment. This was necessary to control the evaporation <br />pond level. <br />TECHNICAL REVISIONS <br />TR-26 was submitted to the CDMG on March 22, 1999. Battle Mountain has been actively <br />managing the seepage from the West Pit, and the water management plan developed in TR-26 <br />has been implemented generally according to schedule. The water management techniques <br />employed since the submission of TR-26 to the Colorado Division of Minerals and Geology <br />(DMG) have begun the process of modifying the hydrology in the vicinity of the West Pit as was <br />described in TR-26. As a consequence, groundwater levels, seepage flows (along the Rito <br />Seco), and surface water quality have changed. <br />With the approval of the DMG Battle Mountain Resources implemented the following steps: <br />1. On July 4, 1999 wells M-18, M-19, and M-20 were brought on line. Wells M-28 and M-29 <br />were brought on line in September. <br />2. On July 15, 1999 the Enhanced evaporation system was placed into operation with feed <br />water being supplied by wells BF-3, BF-4 and BF-5. <br />3. On August 25, 1999 the seep collection system was diverted from the infiltration gallery <br />to the evaporation pond. <br />