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<br />NOT TO SCALE <br />BOTTOM OF ABSORPTION BED TO BE APPROX. 4 FEET <br />BELOW EXISTING GRADE AT UPHILL SIDE OF ABSORPTION BED. <br />BASE OF EXCAVATION SHOULD BE BELOW EXISTING FILL MATERIAL. <br />MIRAFI 140N <br />GEOTEXTILE, OR <br />EQUIVALENT <br />BACKFILL TO BE GRADED <br />TO DEFLECT PRECIPITATION <br />AND SURFACE WATER RUN-ON. <br />12 INCHES MINIMUM AND 3 FEET ------- <br />-MAXIMUM COVER WITH ON-SITE SOIL. _ <br /> <br />BOTTOM SHALL BE LEVEL. <br />BOTTOM ANDFSIDES OF EXCAVATION TO BE I I?l <br />SCARIFIED. <br />_4_'\'-NATIVE SOIL - <br />4 INCH DIAMETER PVC +a- <br />DISTRIBUTION LATERAL, <br />12 INCHES MINIMUM AGGREGATE THICKNESS <br />WITH MIN. 2 INCHES AGOVE PIPES <br />AND MIN. 8 INCHES BELOW PIPES. <br />NOTES <br />1. GRAVEL SPECIFICATIONS <br />STANDARD SIEVE SIZE % PASSING BY WEIGHT_ <br />2-1/2" 100% <br />3/4 0-20% <br />No.4 0-3% <br />2, TRANSPORT AND DISTRIBUTION PIPING TO BE 2 INCH <br />SCH. 40 PVC. <br />3. REFER TO SUMMIT COUNTY ENVIRONMENTAL HEALTH <br />DEPARTMENT INDIVIDUAL SEWAGE DISPOSAL SYSTEM <br />REGULATIONS FOR OTHER APPLICABLE SPECIFICATIONS. <br />406 0264 Ge?Ptech ]CLIMAX MINE - SLUDGE DENSIFfCATION PLANT FIGURE 6 <br />HEPWORTHPAWLAKGEOTECHNICAL ABSORPTION AREA CROSS SECTION