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� SP TESTING INC. PC Exhibit D <br /> Steven B. Schirmers —951 Katydid Lane NE—St. Michael, MN 55376 <br /> Cert. No 627 — State License#394 — Phone 763-497-3566 — Fax 763-497-5011 <br /> www.sptestin�.wastewater@comcast.net— schirmerswastewater.com <br /> March 19, 2015 <br /> Spring Hill Golf Club <br /> Training Center <br /> 725 Co. Rd. 6 <br /> Orono, MN <br /> This letter is in regard with a design for holding tanks for this facility. The <br /> proposal is for 20 students/week with a maximum of 30 students in the future at <br /> 5 gal/each totaling 150 gal/week & 1 instructor/day at 5 gal/session = 5 gal x 30 = <br /> 150 gal/week with a total water use of 300 gal/week. This also includes 5 gal/user <br /> for facility cleaning. <br /> The holding tanks will be 2-1500 gallon tanks with the top of the tanks & 4' down <br /> the sides insulated. An outdoor alarm — light & indoor alarm will be needed. The <br /> alarm will be set at 900 gallon capacity in the 2nd tank allowing 600 gallons reserve <br /> storage after the alarm. <br /> A contract is required at all times with a licensed pumper. <br /> Insulate the supply line with a cleanout at the building & to 50' from the building. <br /> The finished floor of the building will be at elevation 1031.0. The flow line at the <br /> building is approximately 1029.0. The tanks will be at ground elev. 1024.0 & the <br /> top of the tanks at elev. 1022.0 with the flow (ine inlet at elev. 1021.3 <br /> Steven B. Schirmers <br />