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PUBLIC HEARING FOR PUMPING OF LAKE JANE JULY 24, 1985 Mayor Morgan called the public hearing to order at 8:00 p.m. in the Council chambers. Present: Armstrong, Dunn, Christ, Acting Administrator Banister and City Engineer Bohrer. Absent: Mazzara Mayor Morgan addressed the present situation. There is approximatley 465 acre-feet of additional water above elevation 924 on Lake Jane and upstream on Lakes Olson, DeMontreville and Long. Allowing for average precipitation for the remainder of the year, the existing pump should be able to remove 450 acre-feet prior to freeze up on or about December 1, 1985. The City Engineer, Larry Bohrer, presented the proposal of the 1985 Auxiliary Pumping Program for Lake Jane. The purpose of this project is to remove approximately 300 acre feet of additional water so that Lake Jane is approximately elevation 922 prior to the 1986 spring snow melt. It is proposed to install an existing electric pump owned by the VBWD on the south shore of Lake Jane and by means of a forcemain, pump water into the Shafer Contracting gravel pit west of Jamaca Avenue. The estimated cost without contingencies is $14,500. The owners of the gravel pit, Shafer's Contracting Co., want three conditions met before allowing the pumping: a. Maintain access provided to gravel stockpiles. b. Do not allow pine trees to be inundated (elevation 928.5 shall not be exceeded). c. City to provide liability insurance or held harmless in case of a claim. There were backhoe excavations done on the site, and they indicated a perched water table at about elevation 925.5. Soil borings taken for VBWD Project 1001 indicate the pit was underlain with 10 feet to 40 feet of silt and clay. Standing water in the pit is evidence of the perched water table. By contrast, the water table in the landfill is about elevation 900. Since the gravel pit shows saturated soil at elevation 925.5 and all pumping must stop at 928.5 to protect the pine trees, there is insufficient head to drive the water horizontally to dispose of sufficient quantities of water. Surface storage below 928.5 is about 6 acre-feet. The planned pump would fill this in 1-112 to 2 days. Then, the pump would have to be shut off for an indefinite amount of time until water levels recede. Based on these findings, the proposal does not look feasible.