Laserfiche WebLink
� �7-P TESTING� I/YC. Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 497-3566 <br /> FAX (763) 497-5011 <br /> CITY OF ORONO State License #394 <br /> �EPTTG PERMiT PLAN KEVtEW <br /> INSPECTOR <br /> Se tember 11, 2008 bATE�_....PERAdITNQ. <br /> P /1�pROVEd A�Si3BM1'1"l�D <br /> A�PROVED VI►iTN CORRECTIOAt�A!1 i�K�l'$D <br /> ��rRov�n.co�ct a�e�uensrr �ONO�COPY <br /> tnese aom�R.tar yow'h�l� Au wadt sh�N M� <br /> Scott Vickerman ���+a���+�wp��+���a'°°� <br /> 2685 Ra i ny Rd. ��►"��'"en����"�"'�YtO�a i°"�r►`�I�y'rowa�`r�`roriar` <br /> ICE6P TIiISP�h�i 8RT tJ�i SI'TS AT ALL'i'Ea4E� <br /> Orono, Henn. Co., MN <br /> This site has an existing on-site sewage treatment system consisting of 2-1000 gallon <br /> septic tanks, 1-1000 gallon pumping chamber & a pressurized mound system. The <br /> existing mound is hydraulically overloaded and surface discharging at the rock bed <br /> which is classified as an imminent health hazard which must be repaired or <br /> disconnected within 10 months or as determined by the City of Orono. The rock bed <br /> became plugged after an iron filter was installed in the home. As of August 2008, the <br /> iron filter has been �emoved from the system. ORONO COPY <br /> The proposal is to remove the rock bed & 4" to 6" of sand & rebuild the rock bed. Soil <br /> borings # 1 & 2 found mottled soil (redox features) at 26" & 28" below grade. Soit <br /> boring #3 & 4 were completed at the upslope corner of the rock bed. Boring #3 found <br /> the original soil at 2.8', elev.103.7 & boring #4 found the original soil at 2.5', elev.10�2. <br /> A minimum of 12" of sand will be required below the rock bed. Using boring #4, place <br /> the sand to elev.105.2 & reconstruct the rock bed. The sand & rock bed must be <br /> removed & replaced by using a backhoe (excavator). <br /> A Class 1, Multi-Flo Aerobic Wastewater Treatment System which is classified as <br /> standard under Minnesota Chapter 7080 rules will be used or a unit that has positive <br /> filtration and an alarm equivalent to a Multi-Flo Unit. The highly treated, filtered effluent <br /> produced by the Multi-Flo is over 95% free of the normal sewage contaminants that <br /> cause the progressive failure of conventional systems. The unit will be a 600 gal/day. <br /> A trash trap is installed in front of the Multi-Flo. The unit requires to be serviced 2 <br /> times a year which will be done by Schirmers Wastewater Treatment Systems, Inc. A 2 <br /> year service & parts warranty comes with the purchase of the unit. After that time, the <br /> homeowner is required to carry a Service Contract at $180.00 a year (2008 price). A <br /> report is sent to the homeowner, city, MPCA & Multi-Flo yearly. <br /> Inspection pipes will need to be installed to the bottom of the sand fill and bottom of the <br /> rock bed. <br /> oRo�vo co� <br /> 1 <br />