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D L. -TE ~ DEL -TECH GEOTECHNICAL SUPPORT SERVICES, INC. <br />(209) 232-7967 (OFFICE) * cassandra@deltech1.com (Email) <br />SITE: FORWARD LANDFILL / MANTECA, CA. <br />AUSTIN & FORWARD MONTHLY MONITORING LOG 2025 <br />GROUNDWATER TREATMENT FACILITY- PUMPING SYSTEM & G.A.C. SYSTEM <br />DATE <br />June 30, 2025 <br />TIME <br />11:20 <br />LOCATION <br />EW - 1 <br />EW - 2 <br />EW- 3R <br />EW- 4 <br />EW- 5 <br />G.A.C. <br />SYSTEM ON <br />LINE <br />S <br />YESIYES <br />YES <br />YES <br />YES <br />METER # <br />079-03 <br />08-08678-0380-03 <br />09-00773-03 <br />12019001083 <br />12019002786 <br />VESSEL #1 <br />VESSEL #2 <br />G.A.C. EFFLUENT <br />PRESSURES <br />0 <br />8 <br />G.A.C. UNIT <br />CONFIGURATION <br />LAG <br />LEAD <br />INFLUENT PRESSURE <br />(PSI) <br />85 <br />155 <br />85 <br />50 <br />95 <br />0 <br />35 <br />TOTALIZER <br />233,480 <br />340,860 <br />345,100 <br />19,300 * <br />65,249,453 <br />32,569,347 <br />POWER METER <br />11336 <br />36956 <br />50753 <br />NONE <br />NONE <br />73359 <br />SYSTEM FLOW <br />( GPM) <br />60 <br />80 <br />80 <br />0 <br />106 <br />407 <br />D.I.W. <br />74.40 <br />80.00 <br />61.3073.00 <br />60.80 <br />TOTAL DEP <br />100' <br />118' <br />113' <br />115' <br />FIELD PARAMETER READINGS <br />EXTRACTION WELLS <br />G.A.C. <br />EW - 1 <br />EW -2 <br />EW- 3 R <br />EW- 4 <br />EW- 5 <br />INFLUENT <br />MIDPOINT <br />EFFLUENT <br />SAMPLE EFFLUENT <br />PH <br />7.59 <br />7.35 <br />7.45 <br />YES <br />YES <br />7.39 <br />7.28 <br />7.09 <br />7.31 <br />7.37 <br />E.C. <br />462 <br />570 <br />63 <br />279 <br />574 <br />543 <br />540 <br />550 <br />TEMP. <br />18.8 <br />22.7 <br />19.7 <br />22.2 <br />20.9 <br />21.4 <br />21.8 <br />22.2 <br />O.R.P. <br />95 <br />120 <br />125 <br />105 <br />117 <br />190 <br />124 <br />166 <br />T.D.S (mg/L) <br />327 <br />407 <br />449 <br />191 <br />403 <br />382 <br />379 <br />386 <br />TURBIDITY <br />10 <br />14 <br />7 <br />7 <br />10 <br />10 <br />8 <br />6 <br />COLOR <br />CLEAR <br />CLEAR <br />CLEAR <br />CLEAR <br />CLEAR <br />CLEAR <br />CLEAR <br />CLEAR <br />NOTES <br />INFLUENT WATER IS CURRENTLY FLOWING STRAIGHT THROUGH TO CARBON VESSELS, AND ALSO <br />FLOWING THROUGH FILTERS. PRESSURE AT FILTER HOUSINGS WAS 25 psi. FLOW METERS WERE <br />REINSTALLED ON 6/25 AFTER CALIBRATION. * THE FLOW METER ON EW -4 DOES NOT APPEAR TO BE <br />WORKING PROPERLY. WE ARE GOING TO CHECK ON IT AND SEE IF IT NEEDS TO BE SENT BACK TO <br />THE FACTORY. <br />SIGNED:c--�- <br />