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U/08 /02 17 : 27 FAX 916 372 9r Wallace-Kuhl IM 006 / 016 <br /> MATCH EXISTING <br /> AC WITH AC TYPE <br /> B MEDIUM TO MATCH <br /> EXISTING THICKNESS <br /> EXISTING (FIELD VERIFY) <br /> ASPHALT 1 '- 0 " <br /> PAVING <br /> FILL WITH STATE OF CALIFORNIA CLASS 2 <br /> EXISTING /�� \ AGGREGATE BASE AND COMPACT TO �� 6 ' MINIMUM * <br /> SUBGRADE J �� AT LEAST 957 OF ASTM D1557-91 <br /> \ MAXIMUM DRY DENSITY" <br /> :.;,• - - - <br /> Y <br /> tpd <br /> 9F4 MIN. SAND <br /> >- <br /> 12 " MINIMUM* <br /> . <br /> SP ' OSP ,DOSP ' •. <br /> • <br /> O <br /> SEE NOTE J. tu:'.;'•` <` • ', " _ "' `. .` <br /> tL us 2MIN. SAND <br /> NOTES: <br /> 1 , SET TRENCH DEPTH TO 1 '- 6 BELOW ASPHALT <br /> SURFACE GRADE AT THE EQUIPMENT ENCLOSURE AND <br /> CONNECT TO WELL HEADS <br /> 2. INSTALL 114 DIAMETER SCH, 40 PVC PIPING WITH 0. 010 ' <br /> SLOTTED CASING FOR AIR SPARGING POINTS (ASP) <br /> 3" INSTALL 7/8 " DIAMETER TUBING TO CONNECT TO <br /> THE OZONE SPARE POINTS (OSP, 10 TOTAL) <br /> 4. UNDERGROUND SERVICE ALERT (USA) TO BE NOTIFIED <br /> AT 1 -800 - 642-2444 PRIOR TO TRENCHING" <br /> TRENCH CROSS SECTION B — B ' <br /> NOT TO SCALE <br /> CROSS SECTION DETAIL WKA NO: 1628. 11 <br /> I <br /> 404 West Fremont Street DATE: 3/02 <br /> WALLACE • KARL & ASSOCIATES, INC. <br /> GEOTECHNICAL ENGINEERING Stockton, California PLATE NO: 6 � <br /> GEOLOGIC & ENVIRONMENTAL SERVICES <br />