McGuire Air Force Base Restoration Program Site # SS-24 Topics McGuire Air Force Base Restoration Program Site # SS-24 Interim Remedial Action � History of McGuire Restoration Site # SS-24 � FASTRAC � SS-24 Interim Remedial Action � Summary John G. Pohl, Restoration Program Manager NJDEP Triad Approach Meeting September 4 th , 2003 1 2 MCGUIRE AFB, NJ WRIGHTSTOWN, NJ C-17 HANGAR C-17 BED DEVELOPMENT DOWN PLAN AREA COOKSTOWN, NJ 3 4 September 2003 1
McGuire Air Force Base Restoration Program Site # SS-24 PROBLEM Dock 2240 Wash rack C-17 HANGAR MILCON 5 6 C-17 Hangar Footprint FORMER BUILDING 2227 Bldg 2227 Dock 40 Separator N FORMER 2227 APPROXIMATE AOC BOUNDARY APPROXIMATE HANGAR BOUNDARY FORMER 2240 FORMER 2250 FORMER BUILDING 2240 Dock 2240 Wash rack 7 8 September 2003 2
McGuire Air Force Base Restoration Program Site # SS-24 ISSUES FEB 03 - Geoprobe Sample taken at the former Building 2227 site, revealed high levels of organic contaminants & breakdown products in groundwater in this area. � Tetrachloroethene (PERC) at a maximum concentration of 13,754 µ g/L Regulatory Level 1 µ g/L Building 2240 Demolition 9 10 FORMER BLDG. 2227 – THE PIT FORMER FORMER 2227 BLDG BLDG 2240 FORMER BLDGS 2240 &2227 11 12 September 2003 3
McGuire Air Force Base Restoration Program Site # SS-24 SS-24 Interim Assessment and Remedial Action FAST TRACK PLAN � Tasks � 01 APR 03 - Expeditiously � Secure/Realign Funding characterize this site and develop a � Develop SOW � Award Contract remedy � Develop Work Plan � Proceed with constructing the � Secure Regulator Approval of Work Plan hangar on the site. � Complete Characterization � Develop Interim Removal Action Plan � Secure Regulator Approval of IRA Plan � Execute IRA 13 14 � Incorporates key elements from other expedited assessment methods High level of key � stakeholder interaction � Requires experienced Technical Team (FTT) empowered to make decisions in the field Completes projects faster, � cheaper, and with greater regulatory satisfaction 15 16 September 2003 4
McGuire Air Force Base Restoration Program Site # SS-24 2003 Timeline C-17 Interim Characterization &Interim Remedial Action Feb 28 th SS24 Interim Stop Assessment and Work Jun 6 th Remedial Action, MILCON Jan 29 th McGuire AFB, NJ Resumes GW sampling Sep 3 rd ES&H Oversight Apr 28 th of Aug 29 th Interim Remedial MILCON Interim Investigation (IRI) Fastrac Technical Team Remedial Action Jan 03- begins Demolition Complete Science Applications International (SAIC) Hayworth Engineering Science, Tri-Corder 17 18 Triad approach requires a tool box of Triad Approach site assessment tools Soil and groundwater sampling tools: DQO process ideal for • CPT discrete soil and GW samplers Systematic Planning • Percussion direct push discrete soil and GW samplers • MIP subsurface VOC sampler Numerous field analytical methods available Soil and GW analytical tools Data quality adequate • FID/PID/ECD for MIP VOCs to support decisions • DSITMS for VOCs in discrete soil and GW Effective data manage • Off site lab for VOCs in largest uncertainty: selected discrete soil and Contaminant heterogeneity GW or sample representative ness 19 20 September 2003 5
McGuire Air Force Base Restoration Program Site # SS-24 13750 ppb PCE* McGuire AFB, NJ C17 Hanger Site Investigation Sampling points Jan 19, 2003 2360 ppb TCE 840 ppb DCE 67 ppb VC The problem: CSM Jan 19, 2003 Construction of a new hanger for FORMER C17 aircraft delayed by recently discovered potential Cl solvent FORMER source. 2227 Very limited GW sampling indicated BLDG BLDG up to 1% of solubility limit PCE 2240 Same data indicated limited distribution of shallow dissolved phase 5.0 ppb DCE 6.8 ppb VC Apparent dechlorination underway at site FORMER BLDGS 2240 &2227 Construction to resume in June 03 21 22 McGuire AFB, NJ C17 Hanger Site Investigation CSM Mar 12 th , 2003 Sampling points March 12 th , 2003 08 APR 03 23 24 September 2003 6
McGuire Air Force Base Restoration Program Site # SS-24 CPT & DPT Soil Sampling MIP Results with DSITMS Analysis CSM Site work Boundary of MIP ECD Detects began Field day 28 Apr 03 09 CSM Field day 05 25 26 CPT & DPT Groundwater SITE STRATIGRAPHY FORMER Sampling with DSITMS Analysis 2227 High conductivity zones GW CSM r e Developed t a w d n u o r G w o l F Field day 09- 14 27 28 September 2003 7
McGuire Air Force Base Restoration Program Site # SS-24 14 field days Combined Soil & Groundwater Data collected using DSITMS and EPA Method 8265 2003 Timeline 15 MIP penetration 33 soil sampling locations, 234 discrete soil analyses Results 15 Geophysical CPT penetrations 45 GW sampling locations, 162 discrete GW analyses >20 continuous soil core logged 244 QC analyses Feb 28 th Stop Work Likely source leak areas Jun 6 th MILCON Jan 29 th Resumes GW sampling Sep 3 rd ES&H Oversight Apr 28 th of Aug 29 th Interim Remedial MILCON Interim Investigation (IRI) Remedial Action Jan 03- begins Demolition Complete High-probability plume zone Low-probability plume zone 29 30 SOIL REMOVAL LOCATIONS GROUNDWATER EXCLUSION ZONE North 270 ft North 115 ft 40 ft 80 ft 130 ft 240 ft C17 Hanger Footprint 140 ft C17 Hanger Footprint 45 ft Scale (ft) Scale (ft) Exclusion Area, Soil Excavation Zone Groundwater Exclusion Area, Soil 0 100 0 100 50 50 32 September 2003 8
McGuire Air Force Base Restoration Program Site # SS-24 Proposed NA Well Locations STATUS X Performance Evaluation Well Cluster � Tasks (As of 2 AUG 03) • LTM Well Cluster � Secure/Realign Funding � Develop SOW X • • X � Award Contract � Develop Work Plan • X • � Secure Regulator Approval of Work Plan NA Wells installed inside Hangar floor � Complete Characterization X X � Develop Interim Removal Action Plan High-probability plume zone � Secure Regulator Approval of IRA Plan Low-probability plume zone � Execute IRA 33 34 SUMMARY Keys to project success: � Total Restoration Approach � Outstanding teamwork � Excellent communications � Synergistic teaming between the AF, regulators and the FTT � Common goal � Trust � Motivated “A-Team” across the board � Top cover from command 35 36 September 2003 9
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