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PLN17-0034 311 MACARTHUR BOULEVARD - 20-Unit Townhome Condominium Development - Zoning Amendment, Planned Development, Tentative Map, Site Plan Review <br />EXHIBIT N.2 - GRADING AND UTILITY PLAN SOUTH <br />BUILDING A 817 Arnold Drive, Ste. 50Martinez, CA 94553Ph: (925) 476-8499 www.apexce.netDATEAPPBYREVISIONSNO.17028PROJECT #: <br />8 9 10 11 12 13 14 <br />18 <br />BUILDING B <br />BUILDING C <br />151617 <br />66.84 (6" THRU)CB-9 68.8 <br />CB-9 <br />FLOW LINE ELEVATION 65.00 BUILDING "D" SSCO (LOTS 19-20) <br />SSMH-2 <br />67.09 (4" THRU) <br />67.53 (4" THRU)68.6AD-9 <br />AD-9 <br />69.6 67.27 (4" THRU) <br />67.02 (4" IN) <br />69.6 <br />69.4 <br />67.17 (4" THRU) <br />AD-3 <br />AD-4 <br />AD-5 <br />CB-5 66.66 (6" THRU)68.40 <br />66.96 (4" IN) <br />66.96 (6" OUT) <br />68.9 <br />67.0 (4" THRU) <br />AD-6 <br />68.6 67.25 (4" THRU)AD-7 <br />68.6 67.43 (4" THRU)AD-8 <br />68.6 67.62 (4" THRU)AD-10 <br />CB-4 67.75 <br />AD-5AD-4AD-3AD-1 AD-2 <br />CB-8 <br />CB-7 <br />CB-6 <br />CB-5 <br />CB-4 <br />AD-10 <br />AD-8 <br />AD-7 <br />68.8 <br />66.36 (6" IN) <br />67.75 (4" OUT) <br />66.52(6" IN) <br />AD-11 <br />CB-8 <br />CB-7 <br />CB-6 <br />66.57 (6" OUT)68.85 <br />66.85 (6" OUT) <br />66.36 (8" OUT) <br />68.8 <br />69.20 <br />CB-3 63.20 (10" OUT)66.70 <br />FLOW LINE <br />ELEVATION <br />GRATE <br />ELEVATION <br />STRUCTURE # <br />DRAINAGE SYSTEM SUMMARY <br />H <br />E <br />R <br />M <br />A <br /> <br />C <br />O <br />U <br />R <br />T <br />FLOW LINE ELEVATION 66.00 BUILDING "C" SSCO (LOTS 15-18) <br />FLOW LINE ELEVATION 66.00 BUILDING "B" SSCO (LOTS 10-14) <br />FLOW LINE ELEVATION 65.50 BUILDING "A" SSCO (LOTS 1-9) <br />SSMH-4 <br />BO <br />62.40 (6" OUT) <br />61.90 (6" IN) <br />61.63 (8" OUT) <br />61.2 (8" THRU <br />FLOW LINE <br />ELEVATION <br />SSMH-1 <br />AD-11 <br />AD-6 <br />CB-3 <br />MACARTHUR BLVD. <br />KEY LEGEND <br />69.4SSMH-4 <br />SSMH-3 <br />SSMH-2 <br />62.65 (8" OUT)68.2 <br />61.3 (8" IN) <br />61.73 (8" IN)68.9 <br />FLOW LINE <br />ELEVATION <br />RIM <br />ELEVATION <br />69.1SSMH-1 <br />STR. # <br />SANITARY SEWER SYSTEM SUMMARY <br />CB-12 58.97 (15" THRU)TC 67.55 <br />CB-12 <br />67