COMPLIANCE INFO_8/1/2025/ ANNUAL CORRECTIVE ACTION

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AMW-34 (<0.50) AMW-28 (<0.50) AMW-24SR (<0.50)* AMW-22 (6.6)* AMW-31(2.5) AMW-31S (1.2) AMW-13 (6.5) AMW-13B (<0.50)* MW-10 (2.5) AMW-34S (<0.50) AMW-22S (120.6) AMW-33S (<0.50) MW-1A (<0.50)* MW-1B AMW-36S (<0.50) AMW-33 (<0.50) AMW-36 (<0.50) AMW-34M (<0.50)AMW-35S (<0.50) AMW-18B (5.4) MW-13B MW-13A (<0.50) MW-2B MW-14B MW-14A (<0.50) AMW-5 AMW-3 MW-20 AMW-1 (16.0)AMW-5R (<0.50) MW-23R (<0.50) AMW-2 (<0.50) MW-21 (<0.50) MW-15 (<0.50) AMW-38S (<0.50) MW-26 (<0.50) MW-17R (<0.50) MW-25 (<0.50) [<0.50] AMW-18 (<0.50)* AMW-24R (13.7) AMW-35 (<0.50) AMW-37S (<0.50) AMW-37 (<0.50) MW-22 (<0.50) MW-16 (<0.50) MW-2A (<0.50) AMW-29S (2.5) AMW-30S(<0.50)* AMW-30 (4.3) MW-17 MW-18 MW-19 AMW-23S (<0.50)* AMW-23D (<0.50)* AMW-23M (9.7) AMW-39S (<0.50) AMW-6 (<0.50) MW-24 (<0.50) MW-3B MW-3A (<0.50) MW-19R (<0.50) AMW-10 AMW-19 (<0.50) AMW-19BR (0.54) AMW-46 (5.4) AMW-45 (1.5) AMW-44(1.3) AMW-29 (6.9) AMW-40M (<0.50) AMW-40S (<0.50) AMW-42M (<0.50) AMW-47 (<0.50) AMW-48 (<0.50) AMW-49 (<0.50) AMW-52S (3.1) AMW-52M (2.0) PZ-2 (NS) PZ-1(NS) 7833-MW-03 7833-MW-02 7898-A 8106-A DW-9690 AMW-32 (<0.50) AMW-21(0.50) AMW-21S (0.81) AMW-12 (0.65) AMW-14 (<0.50) AMW-32S (<0.50) AMW-41M (<0.50) AMW-41S (<0.50) AMW-43M (<0.50) AMW-43S (<0.50) AMW-51S (13.2) AMW-50S(4.4)* PZ-3 (NS) 7833-MW-04 AMW-51M (10.6) AMW-42S (<0.50) 7833-MW-01 AMW-57S (<0.50) AMW-57M (<0.50) AMW-55 (<0.50) AMW-58S (4.4) AMW-59M (0.83)* AMW-59S (0.57)* AMW-60M (NS) AMW-60S (NS) AMW-61S (NS) AMW-61M(NS) AMW-58M (8.6) AMW-7 (<0.50)AMW-56 (11.1) AMW-26R (6.5) AMW-25 (2.2) AMW-11 (<0.50) AMW-4 (<0.50) AMW-62 (NS)AMW-63 (NS) AMW-64 (NS) AMW-54 AMW-54R (NS) EW-1 EW-4 EW-5 EW-2EW-3R CDCR-EW-2 (NS) CDCR-EW-1 (NS) (0.90) (NS) (4.1) (5.2) AMW-50M (35.8) 100 AREA (50) - 220521 sq.ft AREA (75) - 19140 sq.ft AREA (100) - 10239 sq.ft AREA (1.0) - 37875377 sq.ft 1.0 1.0 1.0 AREA - 93435 sq.ft AREA - 122791 sq.ft AREA - 93435 sq.ft 75 AREA (25) - 1055187 sq.ft 1.02550CDCR-EW-5 (NS) CDCR-EW-4 (NS) CDCR-EW-3 (NS) AMW-22 (6.6)* AMW-22S (120.6) PZ-2 (NS) PZ-1 (NS) AMW-51S(13.2) AMW-50S (4.4)* PZ-3 (NS) AMW-51M (10.6) AMW-58S (4.4) AMW-60M (NS) AMW-60S (NS) AMW-58M (8.6) CDCR-EW-2 (NS) CDCR-EW-4 (NS) CDCR-EW-1(NS) AMW-50M (35.8) CDCR-EW-5 (NS) 100 75 50AMW-61S (NS) AMW-61M (NS)25CDCR-EW-3 (NS) AMW-36S THIRD QUARTER 2024 TVOC ISOCONCENTRATIONS SHALLOW MONITORING WELL OR PIEZOMETER LOCATION MULTIPLE SHALLOW MONITORING WELL LOCATION MULTIPLE SHALLOW / INTERMEDIATE MONITORING WELL LOCATION SHALLOW / INTERMEDIATE MONITORING WELL LOCATION SHALLOW / DEEP MONITORING WELL LOCATION SHALLOW / MULTIPLE DEEP MONITORING WELL LOCATION SHALLOW / INTERMEDIATE / DEEP MONITORING WELL LOCATION INTERMEDIATE MONITORING WELL LOCATION MULTIPLE INTERMEDIATE MONITORING WELL LOCATION DEEP MONITORING WELL LOCATION SHALLOW EXTRACTION WELL LOCATION SHALLOW / INTERMEDIATE EXTRACTION WELL LOCATION INTERMEDIATE EXTRACTION WELL LOCATION OFF-SITE DOMESTIC WELL LOCATION ABANDONED MONITORING WELL LOCATION ABANDONED OFF-SITE DOMESTIC WELL LOCATION CONTOUR LINE SHOWING TVOC CONCENTRATIONS (mg/L) THIRD QUARTER 2024 TVOC CONCENTRATION (mg/L) DATA NOT USED IN CONTOURING DUPLICATE SAMPLE RESULT NOT SAMPLED AMW-3 AMW-28 AMW-34 AMW-13 AMW-12 MW-3B MW-1B AMW-22S AMW-23M EW-2 8106-A LEGEND: DW-9690 AMW-25 0 GRAPHIC SCALE 3,000'1,500' 100 (170.0) * [ ] 1C:\Users\km7685\DC\ACCDocs\Arcadis ACC US\AUS-99999999-REP SERV_FORWARD INC_MANTECA_CA\Project Files\10_WIP\10T_ARC_ENV\2025\01-DWG\GWM-2025Q2-F01-TVOC CONTOUR.dwg LAYOUT: 1 SAVED: 7/23/2025 3:50 PM ACADVER: 24.2S (LMS TECH) PAGESETUP: ----PLOTSTYLETABLE: ---- PLOTTED: 7/23/2025 3:50 PM BY: K, MAHENDRAFORWARD,INC. 9999 SOUTH AUSTIN ROAD SAN JOAQUIN COUNTY, CALIFORNIA 2025 ANNUAL CORRECTIVE ACTION EVALUATION REPORT FIGURE (NS) NOTES: 1.AERIAL PHOTOGRAPH FROM GOOGLE EARTH PRO - SEPTEMBER 2024. 2.NS = NOT SAMPLED. THESE WELLS WERE NOT YET INCLUDED IN THE MONITORING PROGRAM FOR THE RELEVANT QUARTER. WELLS AMW-60S/M WERE INSTALLED IN SECOND QUARTER 2024. WELLS AMW-61S/M, AMW-54R, AND AMW-62, 63, AND 64 WERE INSTALLED IN THIRD QUARTER 2024. THESE WELLS WERE ADDED TO THE PROGRAM IN FOURTH QUARTER 2024. CDCR-EW-1 THROUGH CDCR-EW-5 AND PZ-1 THROUGH PZ-3 WERE ADDED TO THE MONITORING PROGRAM BEGINNING IN SECOND QUARTER 2025. 3.ACTIVE EXTRACTION WELLS (EW-1, EW-2, EW-3R, EW-4, AND EW-5), NOT INCLUDED IN TVOC ANALYSIS 4.WELLS 7833-MW-01 THROUGH 7833-MW-04 EXCLUDED FROM CONTOURS AS THEY ARE CONSIDERED PART OF A SEPARATE PLUME. INSET - SCALE 1" = 750' ABBREVIATIONS AND ACRONYMS: 1.TVOC = TOTAL VOLATILE ORGANIC COMPOUNDS 2.sq. ft = SQUARE FEET 3.mg/L = MICROGRAM PER LITER 4.< = LESS THAN EW-3R CDCR-EW-1