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Forward Landfill 2 6 October 2023 <br /> GeoTracker No: L10008827999 <br /> implementation of corrective actions and groundwater remediation at the Landfill are regulated <br /> by Waste Discharge Requirements Orders R5-2003-0080 and R5-2014-0006 (collectively, <br /> WDRs) and Cleanup and Abatement Order R5-2017-0703 (CAO). <br /> On 29 September 2023, Forward Inc. notified Board staff(via-email) that several volatile organic <br /> compounds (VOC's) had been detected in groundwater samples collected in groundwater <br /> monitoring well AMW-56 on 29 June 2023. Biweekly sampling of the well during July, August, <br /> and September confirmed the presence of VOCs. The e-mail contained a tabulated list of VOCs <br /> detected during the sampling events, see below. For comparison, the concentration limit for <br /> volatile organic compounds in the WDRs is set at non-detect. Any concentration above the limit <br /> is a violation of the WDRs. <br /> AMW-56 Sampling results, reported by the Discharger on 29 September 2023 <br /> Trans- <br /> Cis-1,2- 1,2 <br /> 1,1 DCA 1,2 PCE TCE <br /> Sample Date ug/I DCE DCE Dichloropropane ug/I ug/I <br /> ug/I u /I ug/I <br /> 29 June 2023 1.7 7.5 0.17 J 0.26 J 2.2 2.7 <br /> 14 July 2023 1.4 7.0 <0.5 0.20 J 1.8 2.2 <br /> 28 July 2023 1.3 6.6 0.17 J 0.21 J 2.2 2.5 <br /> 11 Aug2023 1.7 9.5 0.25 J 0.32 J 3.0 3.2 <br /> 25 Aug2023 1.6 8.6 0.25 J 0.34 J 3.2 3.8 <br /> 11 Sept 2023 2.3 12 0.33 J 0.43 J 3.8 4.5 <br /> WDR Non Non Non Non Non Non <br /> Concentration Detect. Detect. Detect. Detect. Detect. Detect. <br /> Limit <br /> Lowest Water PHG = CA MCL MCL = PHG = PHG = <br /> Quality 3.0 = 6.0 10 PHG = 0.5 0.06 1.7 <br /> Objective <br /> MCL 5.0 6.0 10 5.0 5.0 5.0 <br /> MCL Goal NE 70 100 0.0 0.0 0.0 <br /> Notes and Abbreviations <br /> ug/I = micrograms per liter <br /> <0.5 = not detected greater than the laboratory practical quantitation limit <br /> J = estimated concentration <br /> Bold = detection above the method detection limit <br /> NE = not established <br /> PHG = Public Health Goal <br /> Source of water quality goal values = <br /> https://www.waterboards.ca.gov/water issues/programs/water_quality_goals/search.html <br /> On 2 October 2023, Regional Board staff requested (via-e-mail) copies of the analytical data for <br /> the sampling events. As of the date of this Notice of Violation, the analytical data has not been <br /> submitted to the Regional Board. <br />