Page 8 of the PAERAB's Winter 2011 TAPP Contractor Newsletter

September 2010 was approved by the USEPA on September 21, 2010.

The Remedial Action Report for the ICM Site Located at the Former DRMO Yard dated September 2010 was approved by the USEPA on October 5, 2010.

The no-further action recommendation contained in the Vapor Intrusion Evaluation for Area P – Site 78, Building 91 (draft final) dated December 2010 was agreed to by the USEPA on December 14, 2010.

The Group 3; Sites 1,2 and 4 Remedial Design for Groundwater and Surface Water dated December 2010 was approved by the USEPA on December 21, 2010.

Text Box: as submitted” by the NJDEP on October 28, 2010. Tetrachloroethene and RDX were each detected in one sentinel monitoring well for the Southern Boundary Area and the NJDEP commented as follows: “This is of some concern. Continued monitoring and evaluation should occur for the southern boundary.” The Area C Groundwater Interim Remedial Action Report dated August 2010 was determined to be “acceptable as submitted” by the NJDEP on October 28, 2010. The 600 Area MTBE Groundwater Investigation Data Report dated August 2010 was approved by the NJDEP on November 4, 2010. The Former Skeet Range Remedial Investigation Work Plan dated October 2010 was approved by the NJDEP on November 4, 2010. The Former Skeet Range Investigation Data Report dated August 2010 was approved by the NJDEP on November 4, 2010.

Text Box: NJDEP Approvals The 2009 Annual Land Use Certification (Final) dated June 2010 was approved by the NJDEP on October 29, 2010. The Area B (PICA 205) Quarterly Data Report dated June 2010 was determined to be “acceptable as submitted” by the NJDEP on October 29, 2010. The NJDEP noted the following: “Although the most downgradient well monitored, MW-08, is consistently showing the most contamination, there exists no evidence of a discharge to surface water.” The NJDEP also made the following comment: “...downgradient unconfined monitoring well IW-10 should be sampled for TCE and degradation products. Monitoring well IW-10 is further downgradient of MW-08.” The Area C Groundwater, Round A Sampling report dated May 2010 was determined to be “acceptable

Text Box: Elements of the 600 Area Work Plan for Vapor Intrusion and Source Area Investigation dated October 2010 were approved by the NJDEP on October 26, 2010. The NJDEP approved the proposed TCE source area delineation at Site 12 and the indoor air and sub-slab soil sampling at Building 660. However, the NJDEP requested that surface and subsurface soil characterization be completed in the area of Site 12 that had been formerly covered by rock fill. As such the work plan is unacceptable until the soil characterization is addressed. The Biennial Certification Monitoring Report for a Ground Water Classification Exception Area (draft final) dated June 2010 was approved by the NJDEP on November 23, 2010. On November 9, 2010, the NJDEP concurred with the recommendation for no further action contained in the Vapor Intrusion Evaluation for Area P – Site 78, Building 91 (draft final) dated December 2010. USEPA Approvals The Group 1 Sites Remedial Action work Plan dated

· “LNAPL Part 2: LNAPL Characterization and Recoverability,” December 14, 2010 from 2 to 4:15 pm

· “LNAPL Part 3: evaluation LNAPL Remedial Technologies for Achieving Project Goals,” December 16, 2010 from 11 am to 1:15 pm

Text Box: The Interstate Technical Regulatory Council (ITRC) has scheduled the following on-line courses: “LNAPL Part 1: An Improved Understanding of LNAPL Behavior in the Subsurface,” December 9, 2010 from 11 am to 1:15 pm

· “Use of Risk Assessment in Management of Contaminated Sites,” January 25, 2011 from 2 to 4 pm

· “Phytotechnologies,” January 27, 2011 from 11 am to 1:15 pm

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