Project Packet - Laserfiche WebLink

Home Browse Search

i2- Page QI:�, The Prairie du Chien aquifer supplies the 3,000 square miles seven countl metro area with 801 of ground water pumped for public water supply. 152,500,00 gallons are pumped daily from this aquifer. That is approximately 7,500 tines more water than we are using. These figures clear'y reveal the magnitude of the Jordan aquifer and the gallons of water available. The U.S. Geological Survey, titled: "Water Resources Investigations Report 83-4237", talks of the "hydraulic connection" of area surface lakes and this underground water supply. This "hydraulic connection" completes a cycle of water being extracted for pub'ic consumption and replenished by these surface lakes. The geologic cross -sectional map verifies the location of the Jordan aquifer and Lake Minnetonka above, thereby allowing this hydraulic connection to occur. The geothermal heating system now becomes an effective environmental heating and cooling alternative by re-cyling water used. 4. Pump size - specs on pump: Red Jacket brand, submersible pump. 10 horsepower. Three-phase power. Pumping capacity of 150/gallons per minute. 5. Profile of discharge pipe station/elevations/percentage on grade: Attached are drawings from George Shoppe showing pipe going into the lagoon. A( "_-V 6. Temperature of discharge water - wint.er/summer: Temperature of discharge during heating season: 39-40 degrees. �- K Temperature of discharge during cooling season: 57-60 degrees. -EtLL,4y—L This is explained in the information submitted by Terra -Therm, Inc. 7. Method of anchoring ends of discharge line: f4k.Lr-- IK Since the dfs�:harge pipe has been re -designed to go to the lagoon, anchoring to lake does not apply, but a similar anchor and stand w?I1 be used In the lagoon, drawing is included. 8. Depth and location of 100 feet discharge line - like. Does not apply after re -design of discharge pipe. 9. Submit Ilbt of hardships since applicant seeks d variance from the City: SURFACE DISCHARGE 1. Natural drainage system of the Ulrich property and adjoining properties would be over extended and undue erosion of said properties could occur. 2. Tax hydraulic capacity of the existing pond located on southeast corner of Lot 1, 1595 Bohn's Point Road. 3. Contamination and degradated water guallty by carryltw on shore nutrlents Into the lake. 4. Open water may occur causing dangerous 1iabi11ty sltuat'on.