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® CITY of ORONO <br /> Post Office Box 66•Crystal Bay,Minnesota 55323•Municipal Offices <br /> OF On the North Shore of Lake Minnetonka <br /> ORONO­ <br /> SOILS AND SITE EVALUATION FOR SEPTIC SYSTEMS <br /> (IF APPLICABLE) <br /> Determination of site suitability for the use of an on-site sewage <br /> treatment system is one of the .most important factors in planning your <br /> home. Soil capabilities, water table depth or seasonally saturated <br /> zones, topography and structure locations must be considered to ensure <br /> a system that will work effectively. IN MOST OF ORONO' S 2 AND 5 ACRE <br /> ZONES ,CITY SEWERS ARE NOT PROJECTED TO BE INSTALLED IN THE FORESEEABLE <br /> FUTURE. Your drainfield must serve you for a long time . Orono Code <br /> requires that a minimum of 10 ,000 square feet of suitable area be set <br /> aside on your lot for use as drainfield. This will allow sufficient <br /> room for expansion or reconstruction of your drainfield as necessary. <br /> PLEASE READ ALL INSTRUCTIONS AND FOLLOW THEM CAREFULLY: <br /> 1. CONTACT AN MPGA-CERTIFIED SITE EVALUATOR (LIST AVAILABLE) AND THE ORONO SEPTIC SYSTEM <br /> INSPECTOR. MEET WITH THEM ON THE SITE TO DISCUSS POSSIBLE LOCATIONS FOR THE HOUSE, <br /> DRAINFIELD, AND ACCESSORY STRUCTURES. STAKE OUT THE PROPOSED DRAINFIELD SITES. <br /> A. BOTH A PRIMARY AND ALTERNATE (FUTURE) DRAINFIELD SITE MUST BE DELINEATED, EACH <br /> THE APPROXIMATE EQUIVALENT OF 50- X 100- IN AREA. <br /> B. SEE BACK OF THIS SHEET FOR SYSTEM LOCATION SETBACKS AND GENERAL REQUIREMENTS. <br /> 2. AFTER THE DRAINFIELD LOCATIONS HAVE BEEN SELECTED AND STAKED, MAKE SOIL BORINGS AT THE <br /> APPROXIMATE CORNERS OF EACH DRAINFIELD SITE. WHERE SITES ARE ADJACENT, COMMON CORNER <br /> BORINGS ARE ACCEPTABLE. THEN, MAKE AT LEAST ONE ADDITIONAL BORING IN THE APPROXIMATE <br /> CENTER OF THE SITE <br /> o Sones goE:N�- � PERc -1-Es'r PRt�-2y <br /> SOS -i`(P)CAFt- <br /> PRlrnnRy O' <br /> SO <br /> !op' too <br /> 3. BASED ON THE PRESENCE OR ABSENCE OF LIMITING FACTORS (SOIL MOTTLING, ACTUAL WATER TABLE, <br /> BEDROCK, OR HEAVY CLAY LAYERS) ENCOUNTERED IN THE BORINGS, EITHER PROCEED WITH <br /> PERCOLATION TESTS OR MAKE ADDITIONAL BORINGS UNTIL AN AREA OF ADEQUATE SOILS AND SIZE <br /> IS DEFINED, AND RESTAKE AS NECESSARY. <br /> PERCOLATION HOLE DEPTH - FOR TRENCHES: SAME DEPTH AS BOTTOM OF PROPOSED TRENCHES <br /> FOR MOUND: 12"-24' DEPTH <br /> AT LEAST '3 PERCOLATION TEST HOLES ARE REQUIRED FOR EACH SITE. <br /> 4. A SITE PLAN DRAWN TO SCALE IS REQUIRED. SEE HACK OF THIS SHEET FOR DETAILS. FAILURE <br /> TO SUBMIT THE PROPER SITE PLAN WILL RESULT IN DELAYS IN THE REVIEW PROCESS UNTIL THE <br /> SITE PLAN IS SUBMITTED. <br /> S. STAKES TO BE USED TO OUTLINE THE DRAINFIELD SITES MUST BE A MINIMUM OF 2' OUT OF THE <br /> GROUND. THEY MUST BE OF A STURDY MATERIAL AND MUST REMAIN IN PLACE UNTIL THE SYSTEM <br /> HAS BEEN INSTALLED AND INSPECTED. ABSOLUTELY NO CONSTRUCTION TRAFFIC OR GRADING OF <br /> ANY KIND IS PERMITTED IN THIS AREA. <br /> IF YOU HAVE ANY QUESTIONS, OR IF PROBLEMS ARISE DURING TESTING, PLEASE CALL FOR ADVICE. <br /> (BUILDING AND ZONING DEPARTMENT - 473-7357) <br /> BUILDING Ac ZONING-473-7357 • ADMINISTRATION&FINANCE-473-7358 • PUBLIC WORKS-473.7359 <br /> ASSESSING 21 <br />