ARCADIS has proceeded to preparation of the remedial design for the Former DRMO Yard (Site 31/101) despite remaining uncertainties and requests for additional investigation by the NJDEP. The comments and questions presented by the NJDEP at the July 2007 technical meeting have been the topics of previous discussions. Although these topics have already been addressed they have not yet been resolved. Mr. Jim Kealy of the NJDEP noted that these recent comments were actually just reiterations of comments in past NJDEP submittals. For example, the issue of sampling for PCBs under the warehouse building at the site arises periodically only because it has never been resolved since having been brought up originally in 2005.  At the recent meeting ARCADIS presented a figure of the site that was underlain by an old aerial photo (from December 19, 1940); the main area of interest was a lagoon at the site that has since been filled in and over which the warehouse building has been constructed. There is apparently no existing documentation concerning the nature of the former lagoon and given the relatively high concentrations of PCBs at the site one suspicion is that the lagoon may have contained waste oil tainted with PCBs. In addition, it is the

 

 NJDEP’s policy that capping of PCBs  is prohibited for concentrations exceeding 500 parts per million (ppm).  Therefore, the NJDEP has requested that soil sampling be performed beneath the building. ARCADIS contends that even should PCB hot spots be detected beneath the building that the building itself will serve as a cap to eliminate surface exposure. A concern of ARCADIS is that the Army will be required to demolish a serviceable building to remove PCB hotspots and that such an action would incur the following extra costs: soil removal, contaminated soil disposal or consolidation under the proposed cap, demolition of the building and construction of a replacement structure. Ultimately it was decided by the NJDEP that soil samples from beneath the building would be required . After that decision was made the issue then became the timing of soil sampling.  If soil sampling is to occur now it might delay production of a final Remedial Design Work Plan which is expected to be completed in the fall of this year.  As a compromise to speed the administrative aspects of the project it was decided that the soil sampling would be included as a task in the Remedial Design.  Another issue that was resolved at

 

POINTS OF INTEREST:

·      The next RAB meeting is scheduled for 7:30 pm on September 20th at the Hilton Garden Inn in Rockaway, New Jersey. Prior to the RAB meeting there will be a public meeting on two proposed plans for Area C groundwater and the DRMO.

·      ARCADIS conducted a technical meeting to discuss issues relating to their investigative and remedial activities at Picatinny Arsenal on July 19, 2007.  Representatives of Picatinny Arsenal, the Army Environmental Command, USEPA,  NJDEP, and the RAB were present.  The next technical meeting is tentatively scheduled for September 12th.

 

The Picatinny Arsenal Environmental Restoration Advisory Board’s

TAPP Contractor presents

SUMMER  2007

Volume 5, issue 3

Environmental Happenings

At Picatinny Arsenal

IN THE FIELD…..

Recent field activities for June, July, and August 2007 included the following:

Southern Boundary Area:  Collection of groundwater samples from monitoring wells at

 

 Pondview Estates and near the Arsenal truck entrance off of Route 15.  (May, June)

Site 31:  Surveying of site by ARCADIS.  (May)

Environmental Security Technology Certification

 

continued on page 4

FORMER DRMO  YARD ISSUES….REHASHED AGAIN

Editorial Reviewers

David Forti, Michael Glaab, Courtenay Huff

Technical Advisors

Ted Gabel, William Roach,   Gregory Zalaskus

Program (ESTCP)

CONTINUED ON P. 4

Next Page

C1 WATERWAYS

2

Dep Soil Stds

2

TRAINING

2

PONDVIEW

ESTATES

3

AREA B

3

MEC HAZARDS

3

EVO

4

NJDEP MGMT

4

MMRP REMOVAL

4

FLOOD HAZARD

5

MASTER PLAN

5

FOSLs

5

ACTIVE REMEDY

5

AREA D

6

MMRP UPDATE

6