A-DRAINAGE B-DRAINAGE C-DRAINAGE NORTH DRAINAGE PSCT Trench Clay Barrier Clay Barrier Clay Barrier ZONE 1 ZONE 2 0 200 400 Feet 800 600 S o l v e n t P e s t i c i d e / L a n d f i l l M e t a l s Landfill Caustic/Cyanide Acids Landfill L a n d f i l l PCB Landfill PCT-A Trench PCT-C Trench PCT-B Trench Clay Barrier Seep 9B+ A-Series Seep* Seep-CA RCF POND POND 18 POND 13 A-SERIES POND POND A-5 RCRA Landfill MET Former N POND 18 Seep* Sump 9B Seep+ RCRA Canyon Seep* Gallery Well A1M DB-9 EPA-1 EPA-2 LCW-1 LCW-2 LCW-3 MS-1 MW-2BU MW-3BU MW-6BU-1 MW-6BU-2 MW-7BU MW-8BU-2 NP-10 NP-11 NP-6 NP-8 NP-9 RG-3B RP-109B RP-110B RP-17B RP-20B RP-2B RP-41A RP-43B RP-89A RP-90A RP-91A RP-99A RP-9B SW-17 SW-18 SW-31 SW-44 SW-47 SW-48 SW-49 SW-50 TP-12 TP-16 TP-4 WB-2 WB-6 WP-7S WP-8S Rd Sump SW-16 GW-P(E) GW-P(W) L2 (SW-4) Sump 9B-PA Sump 9B-PB Sump 9B-PC RG-11B RG-9B RG-8B RG-10B W Seep 9B W CA-Seep RGPZ-6B RGPZ-5B PZ-LA-01 GW-P(E2) GW-P(E3) CPT-LA-01 CPT-LA-02A CPT-LA-03 CPT-LA-04 CPT-CB-01 WS-3 RIMW-3 RIMW-1 RIPZ-22 RIPZ-12 RI-SB-1 RG-11B-2 RGPZ-10B-2 RIMW-7 RIMW-8 RIPZ-9 RIMW-6 RIPZ-8 RIPZ-25 RIPZ-24 RIPZ-23 RIPZ-26 WS-2 Sump 9B B-5 C-5 PSCT-1 PSCT-2 PSCT-3 RAP-1A RAP-1B RAP-1C RAP-2A RAP-3A A2M B3M B4M C2M C3M C4M C5E D1M FW-10 FW-2 FW-3 FW-9 MW-15C MW-18C MW-7C RG-1B RG-2B RG-4B RP-100A RP-103B RP-108A RP-108B RP-10A RP-11A RP-12A RP-13B RP-14B RP-28B RP-30B RP-31B RP-32B RP-3B RP-52B RP-59B RP-5B RP-64B RP-65B RP-6A RP-6B RP-72A RP-72B RP-73A-1 RP-73A-2 RP-73B RP-75A RP-75B RP-76A RP-78B RP-7B RP-84A-2 RP-84B RP-87C-2 SB-3 SB-4 SW-1 SW-15 SW-24A SW-28 SW-29 SW-46 SW-5 T-3A T-3B TP-1 TP-13 TP-15 TP-2A TP-3 TP-5 TP-7 TP-8 WB-4 WP-3S WP-4S I-3 SB-5 W Pond 18 W Pond A-5 CT-1A CT-1B CT-2A CT-2B CT-3A CT-4A CT-4B CT-5A-1 CT-5A-2 PZ-P18-1 PZ-P18-2A PZ-P18-2B PZ-P18-3A PZ-P18-3B PZ-P18-4A PZ-P18-4B PZ-P18-5 PZ-PA5-1A PZ-PA5-1A1 PZ-PA5-2A PZ-PA5-2B PZ-PA5-2C PZ-PA5-3A PZ-PA5-3A1 PZ-PA5-3B PZ-PA5-3C RG-7B RG-6B RG-5B W A-Series Pond W RCF Pond W Pond 13 W A-Series Seep WS-4 WS-1 RIMW-2 RIMW-5 RIPZ-20 RIPZ-11 RIPZ-19 RIPZ-7 RIPZ-6 RIPZ-18 RIPZ-2 RIPZ-5 RIMW-9 RIPZ-4 RIPZ-3 TP-9 PSCT-4 A-Series Pond** Explosives Hydrazine NDMA Perchlorate 11/03/04 ND NS ND(0.020) NS 04/08/05 ND NS ND(0.020) NS B3M** Explosives Hydrazine NDMA Perchlorate 12/06/99 ND NS ND(3.0) NS 07/06/00 ND NS ND(2.0) NS B-5** Explosives Hydrazine NDMA Perchlorate 11/11/99 ND NS ND(2.0) NS 06/29/00 ND NS ND(2.0) NS C3M** Explosives Hydrazine NDMA Perchlorate 12/09/99 ND NS ND(2.0) NS 07/05/00 ND NS ND(2.0) NS C-5** Explosives Hydrazine NDMA Perchlorate 10/19/04 ND NS ND(0.020) /U NS 04/12/05 ND NS 0.017 /J NS Gallery Well 135-Trinitrobenz (EPA 8270) 135-Trinitrobenz (EPA 8330) 13-Dinitrobenzene (EPA 8270) 13-Dinitrobenzene (EPA 8330) 2-Amino-46-DNT 2-Nitrotoluene Hydrazine NDMA Perchlorate RDX Tetryl 11/15/04 ND(1000) UJ/U 2500 /D 250 J/J ND(32) /UD 170 /D ND(32) /UD ND(1.0) 24 /D 720 /D 20000 /D 3400 /D 04/13/05 ND(1500) /UD ND(420) /UD ND(1500) /UD ND(420) /UD ND(420) /UD 480 /D ND(1.0) 48 /D 190 /D 28000 /D 24000 /D LCW-1** Explosives Hydrazine NDMA Perchlorate 01/11/99 ND NS ND(3.0) NS MW-18C** Explosives Hydrazine NDMA Perchlorate 10/18/04 NR NS NR NS 03/25/05 ND NS NR NS MW-7BU** Explosives Hydrazine NDMA Perchlorate 11/16/99 ND NS ND(2.0) NS 07/11/00 ND NS ND(3.0) NS MW-7C** Explosives Hydrazine NDMA Perchlorate 10/14/04 ND NS ND(0.020) NS 03/29/05 ND NS ND(0.020) NS Pond 13** Explosives Hydrazine NDMA Perchlorate 10/28/04 ND NS ND(0.020) NS 04/07/05 ND NS ND(0.020) NS Pond 18** Explosives Hydrazine NDMA Perchlorate 11/04/04 ND NS ND(0.020) /U NS 04/12/05 ND NS 0.18 NS Pond A-5** Explosives Hydrazine NDMA Perchlorate 11/03/04 ND NS ND(0.020) NS 04/08/05 ND NS ND(0.020) NS PSCT-1 13-Dinitrobenzene (EPA 8270) 13-Dinitrobenzene (EPA 8330) 26-Dinotortoluene (EPA 8270) 26-Dinotortoluene (EPA 8330) 2-Amino-46-DNT Hydrazine NDMA Perchlorate RDX Tetryl 11/15/04 40 J ND(5.0) /U ND(2.0) /U 5.3 ND(5.0) /U ND(1.0) 0.052 100 /D 19 220 04/12/05 ND(10) /U ND(5.7) /UD ND(2.0) /U ND(5.7) /UD 4.2 /JD ND(1.0) 0.20 ND(40) /UD 6.4 /D 98 /D PSCT-2 Explosives Hydrazine NDMA Perchlorate 10/29/04 ND ND(1.0) 1.6 J* 29 /D 04/11/05 ND 0.41 /J 4.1 /D 73 /D PSCT-3** Explosives Hydrazine NDMA Perchlorate 10/20/04 ND NS 19 /D NS 04/11/05 ND NS 15 /D NS PSCT-4 Explosives Hydrazine NDMA Perchlorate ND 11/15/04 ND(1.0) 1.9 360 /D ND 04/12/05 ND(1.0) 1.9 21 /D PZ-P18-5 Explosives Hydrazine NDMA Perchlorate 10/22/04 ND ND(1.0) 0.049 78 /D 03/30/05 ND ND(1.0) 0.067 ND(4.0) /U RAP-1A** Explosives Hydrazine NDMA Perchlorate 10/22/04 ND NS ND(0.020) NS 03/30/05 ND NS ND(0.020) NS RAP-1B** Explosives Hydrazine NDMA Perchlorate 10/20/04 ND NS ND(0.020) NS 04/08/05 ND NS ND(0.020) NS RAP-1C** Explosives Hydrazine NDMA Perchlorate 10/19/04 ND NS ND(0.020) NS 04/12/05 ND NS ND(0.020) NS RAP-3A** Explosives Hydrazine NDMA Perchlorate 10/22/04 ND NS ND(0.020) NS 04/12/05 ND NS ND(0.020) NS RCF Pond** Explosives Hydrazine NDMA Perchlorate 10/28/04 ND NS ND(0.020) NS 04/07/05 ND NS ND(0.020) NS Rd Sump** Explosives Hydrazine NDMA Perchlorate 05/05/99 ND NS ND(30) NS 11/23/99 NS NS ND(20) NS RG-10B** Explosives Hydrazine NDMA Perchlorate 11/04/04 ND NS ND(0.020) NS 03/31/05 ND NS ND(0.020) NS RG-11B** Explosives Hydrazine NDMA Perchlorate 10/15/04 ND NS NR NS 03/24/05 ND NS NR NS RG-11B-2** Explosives Hydrazine NDMA Perchlorate 04/01/05 ND NS 0.061 NS RG-1B** Explosives Hydrazine NDMA Perchlorate 10/20/04 ND NS ND(0.020) /U NS 03/23/05 ND NS 0.022 NS RG-2B* Explosives Hydrazine NDMA Perchlorate 03/24/05 ND NS NS NS RG-3B Hydrazine NDMA Perchlorate RDX Tetryl 03/02/05 ND(1.0) 19 /D ND(4.0) /U 250 J/D 420 J/D 04/18/05 ND(1.0) 28 /D 47 /D 1000 /D 1700 /D RG-4B** Explosives Hydrazine NDMA Perchlorate 11/09/04 ND NS ND NS 03/21/05 ND NS 0.54 NS RG-5B** Explosives Hydrazine NDMA Perchlorate 10/15/04 NS NS ND(0.020) NS 03/30/05 ND NS ND(0.020) NS RG-6B HMX Hydrazine NDMA Perchlorate 10/29/04 ND(5.0) UJ/U ND(1.0) ND(0.020) ND(20) /UD 03/29/05 3.7 /JD ND(1.0) ND(0.020) 31 /D RG-7B** Explosives Hydrazine NDMA Perchlorate 10/15/04 ND NS ND(0.020) /U NS 03/25/05 ND NS 0.019 /J NS RG-8B Hydrazine NDMA Perchlorate ND(1.0) 10/15/04 0.19 110 /D ND(1.0) 03/25/05 0.13 99 RG-9B Hydrazine NDMA Perchlorate RDX 10/27/04 ND(1.0) 0.32 390 /D 16 /D 03/29/05 ND(1.0) 0.19 440 /D ND(8.9) /UD RGPZ-10B-2** Explosives Hydrazine NDMA Perchlorate 01/20/05 NR NS NS NS 04/13/05 NR NS NS NS RGPZ-5B** Explosives Hydrazine NDMA Perchlorate 03/03/05 ND NS 97 NS 04/18/05 ND NS 19 /D NS RGPZ-6B** Explosives Hydrazine NDMA Perchlorate 03/02/05 ND NS ND(2.4) /UD NS 04/18/05 ND NS 13 /D NS RIMW-1** Explosives Hydrazine NDMA Perchlorate 01/19/05 ND NS ND(0.020) NS 03/31/05 ND NS ND(0.020) NS RIMW-2** Explosives Hydrazine NDMA Perchlorate 01/20/05 ND NS 0.081 NS 03/25/05 ND NS 0.023 NS RIMW-3** Explosives Hydrazine NDMA Perchlorate 03/03/05 ND NS 2.0 /D NS 04/18/05 ND NS 1.7 /D NS RIMW-5** Explosives Hydrazine NDMA Perchlorate 01/20/05 ND NS NS NS 04/07/05 ND NS NS NS RIMW-6** Explosives Hydrazine NDMA Perchlorate 01/17/05 NR NS NS NS 04/08/05 NR NS NS NS RIMW-7** Explosives Hydrazine NDMA Perchlorate 01/18/05 ND NS 0.89 NS 04/12/05 ND NS 0.83 NS RIMW-8** Explosives Hydrazine NDMA Perchlorate 01/20/05 ND NS 0.074 NS 04/07/05 ND NS 0.34 NS RIMW-9** Explosives Hydrazine NDMA Perchlorate 01/19/05 ND NS ND(0.020) NS 03/28/05 ND NS ND(0.020) NS RIPZ-8** Explosives Hydrazine NDMA Perchlorate 03/03/05 ND NS 3.3 /D NS 04/18/05 ND NS 4.8 /D NS RP-100A** Explosives Hydrazine NDMA Perchlorate 10/21/04 ND NS ND(0.020) NS 03/29/05 ND NS ND(0.020) NS RP-103B** Explosives Hydrazine NDMA Perchlorate 11/30/99 ND NS ND(2.0) NS 06/28/00 ND NS ND(2.0) NS RP-109B* Explosives Hydrazine NDMA Perchlorate 11/15/99 ND NS ND(2.0) NS 07/12/00 ND NS ND(2.0) NS RP-13B** Explosives Hydrazine NDMA Perchlorate 04/23/99 NS ND(2.0) NS 06/30/00 NS ND(2.0) NS ND ND RP-17B** Explosives Hydrazine NDMA Perchlorate 11/18/99 ND NS ND(3.0) NS 07/11/00 ND NS ND(2.0) NS RP-20B** Explosives Hydrazine NDMA Perchlorate 10/19/04 ND NS ND(0.020) NS 03/23/05 ND NS ND(0.020) NS RP-28B** Explosives Hydrazine NDMA Perchlorate 10/14/04 ND NS ND(0.020) NS 03/29/05 ND NS ND(0.020) NS RP-59B** Explosives Hydrazine NDMA Perchlorate 12/01/99 ND NS ND(3.0) NS 07/05/00 ND NS ND(2.0) NS RP-65B** Explosives Hydrazine NDMA Perchlorate 11/30/99 ND NS ND(2.0) NS 07/06/00 ND NS ND(2.0) NS RP-72A** Explosives Hydrazine NDMA Perchlorate 11/22/99 ND NS ND(8.0) NS 07/07/00 ND NS ND(3.0) NS RP-75A** Explosives Hydrazine NDMA Perchlorate 11/18/99 ND NS ND(3.0) NS 06/29/00 ND NS ND(3.0) NS RP-75B** Explosives Hydrazine NDMA Perchlorate 11/18/99 ND NS ND(2.0) NS 06/29/00 ND NS ND(2.0) NS RP-76A** Explosives Hydrazine NDMA Perchlorate 11/23/99 ND NS ND(2.0) NS 06/30/00 ND NS ND(2.0) NS Sump 9B 13-Dinitrobenzene (EPA 8270) 13-Dinitrobenzene (EPA 8330) Hydrazine NDMA Perchlorate RDX Tetryl 11/08/04 120 J/J ND(38) /UD ND(1.0) 11 /D 110 /D 8800 J/D 1100 J/D 04/14/05 ND(500) /UD ND(350) /UD ND(1000) 2.7 J/D ND(40) /UD 4500 J/D 9900 J/D SW-17 HMX Hydrazine NDMA Perchlorate RDX 11/12/04 39 J/D ND(1.0) 0.066 ND(20) 6.8 J/JD 04/15/05 ND(6.8) /UD ND(1.0) 0.56 ND(20) 12 /D SW-29** Explosives Hydrazine NDMA Perchlorate 10/15/04 ND NS ND(0.020) NS 03/30/05 ND NS ND(0.020) NS SW-31 Hydrazine NDMA Perchlorate Tetryl 10/14/04 ND(1.0) ND(0.020) UJ*/U 130 /D 6.8 /D 04/05/05 ND(1.0) 0.035 120 /D 7.9 J*/D SW-44 13-Dinitrobenzene (EPA 8270) 13-Dinitrobenzene (EPA 8330) Hydrazine NDMA Perchlorate 10/22/04 0.57 /J ND(5.0) /U ND(1.0) ND(0.020) ND(20) /UD 04/01/05 ND(10) /U ND(5.0) /U ND(1.0) ND(0.020) 27 SW-46** Explosives Hydrazine NDMA Perchlorate 10/15/04 ND NS ND(0.020) NS 04/06/05 ND NS ND(0.020) NS SW-47** Explosives Hydrazine NDMA Perchlorate 10/15/04 ND NS ND(0.020) NS 03/24/05 ND NS ND(0.020) NS TP-4** Explosives Hydrazine NDMA Perchlorate 12/07/99 ND ND(0.060) 0.053 NS 07/19/00 ND ND(1.0) ND(0.020) 58 WP-3S** Explosives Hydrazine NDMA Perchlorate 10/15/04 ND NS ND(0.020) NS 03/25/05 ND NS ND(0.020) NS WP-7S** Explosives Hydrazine NDMA Perchlorate 04/10/02 NS ND(2.0) NS 05/15/03 NS ND(2.0) NS ND ND WP-8S Explosives Hydrazine NDMA Perchlorate 10/18/04 ND ND(1.0) ND(0.020) UJ/U 130 /D 04/04/05 ND ND(1.0) 0.042 130 /D WS-1** Explosives Hydrazine NDMA Perchlorate 01/20/05 ND NS ND(0.020) NS 03/28/05 ND NS ND(0.020) NS WS-2** Explosives Hydrazine NDMA Perchlorate 10/25/04 ND NS ND(0.020) NS 03/28/05 ND NS ND(0.020) NS WS-3** Explosives Hydrazine NDMA Perchlorate 10/25/04 ND NS ND(0.020) NS 03/28/05 ND NS ND(0.020) NS WS-4** Explosives Hydrazine NDMA Perchlorate 11/03/04 ND NS ND(0.020) NS 04/05/05 ND NS ND(0.020) NS Explosives ND ND RIPZ-37 RIPZ-37** Explosives Hydrazine NDMA Perchlorate 10/20/06 ND NS ND(3.0) NS RIPZ-30 RIPZ-31 RIPZ-32 RIPZ-34 RIPZ-35 RIMW-10 RIMW-11 RIPZ-29 RIPZ-33 RIPZ-31-B RIPZ-33-B RIHP-3 RIHP-2 RIHP-4 RIHP-5 RIHP-1 RIHP-6 RIPZ-34-B RIHP-1 NDMA Explosives Perchlorate Hydrazine 01/08/07 0.010 NR NR NR RIHP-2 NDMA Explosives Perchlorate Hydrazine 03/02/07 NR NR NR NR RIHP-3 NDMA Explosives Perchlorate Hydrazine 03/02/07 NR NR NR NR RIHP-4 NDMA Explosives Perchlorate Hydrazine 03/02/07 NR NR NR NR RIHP-5 NDMA Explosives Perchlorate Hydrazine 02/15/07 NR NR NR NR RIMW-10** Explosives Hydrazine NDMA Perchlorate 10/20/06 ND NS NS NS RIMW-11** Explosives Hydrazine NDMA Perchlorate 10/20/06 ND NS NS NS RIPZ-14 RIHP-7 RIHP-7 Explosives Hydrazine NDMA Perchlorate 06/04/07 NS NS NS NS RIHP-6 NDMA Explosives Perchlorate Hydrazine 05/24/07 NR NR NR NR CHK DATE: CHECKED: DRAWN: ENGINEER: NO. DATE BY REVISIONS SCALE: PROJECT NO: DATE: APPROVED: DATE: REVISION NUMBER: OF SHEET: Explosives, NDMA, Perchlorate, and Hydrazine in the Upper HSU Remedial Investigation Sampling PCB 4088097619 1"= 400' Final Remedial Investigation Report Casmalia Resources Superfund Site Casmalia, California January 2011 1 1 G-20 FIGURE 0 4088097619031.DWG 40.0 Well Number Groundwater Concentrations in Micrograms Per Liter Date (Month/Day/Year) 580 J/B 1,2-DCB B-30 10/17/96 Validation Qualifier/Laboratory Qualifier Chemical No results posted indicates no chemicals reported above detection limits. List of chemical abbreviations and data qualifiers provided in text. NOTES: Topo map revised 1998, 2000, 2004. Topo with P/S landfill and borrow area revised 2000. (Foster-Wheeler). Zone 1 boundary (green) is approximate and includes the area within the facility boundary. ** Sampling location was not analyzed for explosives by EPA Method 8330, but several explosive compounds were analyzed for by EPA 8270. The widths of the clay barriers, PSCT, and PCT trenches are exaggerated for presentation purposes. Bold values indicate exceedences of MCL/PRGs. ND Not detected, but sampled and analyzed NR Not sampled/analyzed due to lack of water recovered from sampling location. NS Not sampled Laboratory and Validation Qualifiers: "D" The sample or sample extract was diluted prior to analysis due to high levels of target analytes or matrix interferences. "B" The analyte was detected in an associated blank sample. "J" The analyte was positively identified; the associated numerical value is the approximate concentration of the analyte in the sample. For the inorganic methods, a "+" or "-" may be added to indicate high or low bias. "N" The analysis indicates the presence of an anlyte for which there is presumptive evidence to make a tentative identification. "NJ" The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value represents an approximate concentration. "U" Compound was analyzed, but not detected above the listed sample quantitation limit. "UJ" The analyte was not detected above the reported sample quantitation limit. However, the reported quantitation limit is an estimate. "R" The result is rejected due to a serious deficiency in the analysis or associated quality control analysis. "*" Indicates that the qualifier was applied in response to a Level IV review finding. Pond Outline LEGEND Burial Trench Creek Landfill Boundaries Perimeter Source Control Trench (PSCT) Clay Barrier Facility and Zone 1 Boundary Plume Capture Collection Trench (PCT) Upper HSU Monitoring Well Upper HSU Extraction Point Upper HSU Surface Water Sample Upper HSU Other Sampling Point W Meteorological Station MET Upper HSU Piezometer Upper HSU Hydropunch POND18 SW-10 RAP-2A MW-15C GW-P(E) RIHP-1 The two most current sampling events are posted. NAM WJF 1/2011 1/2011