Text Box: Carbon tetrachloride is the main contaminant targeted in a pilot study using nano-iron particles to speed the reductive dechlorination process. Nano-iron consists of submicroscopic particles of iron combined with a surface catalyst to accelerate reaction in the environment. The particles are created in a proprietary process by PARS Environmental. Elsewhere on the base iron filings were injected into the ground with little success. The results available so far for the nano-iron                    
Text Box: iron pilot appear favorable. Nano-iron was injected into several wells in September 2004.  Three downgradient monitoring wells are included in sampling  to evaluate the effectiveness of the nano-iron. An upgradient monitoring well was also included.  Samples in the downgradient wells have been or will be collected at 3 days, 14 days, 28 days, and 4 months after injection.  Results reported at the October 2004 technical meeting included those from 28 days after injection.  In well 2MW-10 located Text Box: 6 feet downgradient of the injection point, the concentration of carbon tetrachloride was reduced from 210 parts per billion (ppb) at the onset of the pilot study to 35 ppb at 28 days after injection.  Similarly, the concentration in Well 2MW-18, located 16 feet downgradient of the injection point, was reduced from 240 to 88 ppb in 28 days.  Results so far look promising; stay tuned for more results in a few months.
Text Box: time. Its viscous nature  makes it last longer than aqueous solutions such as sodium lactate. Whereas sodium lactate travels from the point of injection because it is a liquid, HRC does not move very much beyond the point of injection. One of the goals of the pilot study is to determine the spacing for the injection points. The use of HRC®  was 
Text Box:  HRC® (Hydrogen Release Compound) was introduced into the subsurface in Areas B and D. HRC® is a proprietary compound manufactured by Regenesis.  The compound is a viscous liquid  that is typically emplaced by direct-push techniques such as a Geoprobe. The compound is gradually used up over 
Text Box: intended to accelerate degradation of chlorinated solvents in the groundwater in these areas.   After the HRC was applied, sampling of groundwater in selected wells was performed at a high frequency during the first month after application.  As of the October 2004 technical meeting, a month of monitoring showed positive 
Text Box: Nano-Iron Blasts Contamination at Site 2
Text Box: Regenesis HRC® Knocks Down VOCs in Area B and Area D
Text Box: Soil Reuse at the Base 
Text Box: said that areas of concern should be eliminated where possible instead of creating new areas of concern.  The USEPA also commented on the      multitude of sites that will be encumbered with institutional controls and the difficulty of tracking all the sites.  Although soil re-use can result in cost savings and eliminates the need for off-site disposal, soil re-use can have                                  Text Box: its own set of   associated problems.  Some of the  possibilities for soil reuse  include use as fill, for grading purposes, and as road base. Use of the soil at existing  contamination sites is         preferable  given the immense task of tracking contamination sites at the base.

 
Text Box: Picatinny recently requested approval from regulatory agencies to re-use soil from the lead removal action at Site 161.  Both the NJDEP and the USEPA expressed concern about the creation of “new” sites by moving soil around.  Both agencies would prefer that contaminated soil be    reused at sites with existing contamination such as the Burning Grounds. The USEPA Text Box: Distribution of newsletter
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Text Box: Volume 1, issue 4

UPCOMING PUBLIC NOTICE

The Record of Decision (ROD) for the Post Farm Landfill was signed by the U.S. Environmental Protection Agency in December 2004.  The Army posted public

results. Monitoring will continue on a monthly basis for four months and then shift to a bimonthly frequency until the end of the pilot program.  Monitoring results will be evaluated to determine the parameters for full-scale application.  For information on  HRC®   refer to the Regenesis website at www.regenesis.com.

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notice of the ROD execution in January 2005.  Notices appeared in Morris County newspapers.  Funds for the

 work were allocated for the present fiscal year.