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T I_I(_- 1 1 -•?9 TIJ E 1 3 - 2 4 AFJDEF' I`IND ,l = CI C I ,,T E^_• Sanders and Associates Inc.. • 365 East Kellogg Boulevard • St. Paul, MN • 55104 • (612) 221 -0401. TO: FROM: DATE: RE: MEMORANDUM Bill Sanders Larry Wacker July 11, 1989 Water Service to Pioneer Park I have completed research on the concept of installing a well on the Pioneer Park site to serve as the water source for the proposed irrigation system. The following items summarize my findings. 1. The well would have to produce about 8,200,000 gallons over a four month period each year. Primary use would be during June, July, August and September. The usage estimate includes watering of all fields every other day during the four month period. 2. The well system would have to produce 140 gallons of water per minute at a pressure of 85 psi. This would require a 6" diameter well with a 10 hp submerged pump. 3. A well supplying a standard single - family home in the area would have to be about 125' deep. The larger capacity well required for the Park may have to be as much as 250' deep. 4. The total cost of sinking the well and installing a screen and pump would be in the $8,000 to $14,000 range depending on the required depth. 5. The well should require little maintenance and the pump would have a 10 - 15 year life expectancy. Electrical power to run the pump would cost about $500 per year. The cost of replacing the pump would be about $1,000. 6. Well water should have no ill effects on the irrigation system, however, if the water has a high iron content a filtering device should be installed. 7. The City currently pays about .001 dollars per gallon of water to the City of St. Paul. At that price, the 8,200,000 gallons used in a year for irrigating the playing fields would cost $8,200.00. 8. If a well is installed, piping and fittings should be designed so the system could be easily hooked up to City water if necessary. Page 30 The decision on whether or not to install a well should be made as soon as possible. It would take 5 - 6 weeks to receive competitive bids and complete installation.