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SP TESTING INC. Steven B. Schirmers -951 Katydid Lane NE -St. Michael, MN 55376 Cert. No 627 - State License #394 - Phone 763-497-3566 - Fax 763-497-5011 www.sptesting.wastewater(@Comcast net- schirmerswastewater.com October 31, 2017 Thomas Hamilton Lot 2, Block 1 Fox Hill Orono, MN This site had 2 existing on-site sewage treatment sites identified on the original plat. These sites have been damaged (disturbed) from tree removal. 40 soil probings were completed in the original septic sites finding 50% to 75% compacted soil from equipment travel. This site has very limited space for placing a new system due to disturbed soil. A standard system under Minnesota Chapter 7080 rules cannot be designed. The proposal is to install a Type 111, System under Minnesota Chapter 7080.0179 rules for a Type 1, 5 bedroom home. The clay loam soil will be removed to the loam soil to elev. 938.0 to 940.1, then backfilled with washed sand to elev. 945.1 using SB#2 with mottled soil (redox features) at elev. 942.1, then install a pressurized seepage bed. The City of Orono requires a Type 1, system for new construction to be a buildable lot. Type IV systems are not allowed in the City code. This design will require a variance from the City of Orono to be buildable. A Class 1, Multi -Flo Aerobic Wastewater Treatment system which is classified as standard under Minnesota Chapter 7080 rules will be used or a unit which has positive filtration and an alarm equivalent to a Multi -Flo Unit. The highly treated, filtered effluent produced by the Multi -Flo is over 95% free of the normal sewage contaminants that cause the progressive failure of conventional systems. The unit will be a 750 gallday. A trash trap is installed in front of the Multi -Flo Unit. The unit requires to be serviced 2 times a year which will be done by Schirmers Wastewater Treatment Systems, Inc. A 2 year parts & service warranty comes with the cost of the unit. After that time, the homeowner is required to carry a service contract at a cost of $225.00 a year (2017 price). A report is sent to the homeowner, City, MPCA & Multi -Flo yearly. 2 inspection pipes must be installed, 1 to the bottom of the sand fill & 1 to the bottom of the rock bed. All property line will need to be located prior to installation.