•Remediation techniques were proposed for Lead, Aluminium and TCE contaminant in soil, subsurface soil and surface water of Picatinny Arsenal analyzing the hydrology, geology and ground water flow according to 2007 United States Environment Protection Agency Record of Decisions. •Pilot project for Soil vapor Extraction and Stabilize and Solidification were designed with a primary cost analysis for remediation.

1. Assessment and Remediation of PICATINNY ARSENAL (USARMY)
New Jersey, USA
History of Land Use and Source of Contamination
• Site Name : Picatinny Arsenal
– Area : 6,491 Acres
– City : Dover (County : Morris)
– Location : New Jersey, USA
– Land Used : Over 100 years
– Source of : Ammunition in wartime.
• Land Use : Research, development and pilot-plant production of weapons, constituent explosives
and propellants ,Testing and manufacturing explosives and propellants, Shell-burial areas. Surface
impoundments, landfills, drum-storage areas. Rocket-engine testing areas.
• Source of Contaminants : Discharge to sewer/surface water
: Explosive disposal/detonation
: Inadvertent spill
: Lagoon disposal and Landfill
: Manufacturing process
: Storage - drums/containers of waste
: Waste pile, tank - above and below ground

2. Dominant Contaminants on the Site
• Contaminants
– VOC in area D Groundwater consists of a large groundwater plume which
have originated from de-greasing activities at Building 24.
– TCE in Building 95 a maximum concentration of 15.7 mg/liter detected in
wells up gradient from the wastewater-treatment site in Ground water .
– PCBs were detected in surface soil, subsurface soil, and sediment samples
collected at Site 20/24. In the original RI investigation, PCBs exceeded the RG
of 2 mg/kg in five surface soil samples with max concentration of 296 mg/kg.
– LEAD was detected in six surface soil samples at 20/24 site, concentrations
were greater than its RG (580 mg/kg). Concentrations of lead ranged from 621
mg/kg to 2,000 mg/kg (2001 USEPA)
• Effect
– Ground water (drinking water);
– Surface water (drinking water, human food chain, sensitive environments);
– Soil exposure (resident population, nearby population, sensitive environments);
– Air pollution (population, sensitive environments).

3. Geological feature and characteristics of the site
• The arsenal is in the central part of the New Jersey Highlands .
• The Highlands are a northeast-southwest-trending system composed of folded and faulted
• Precambrian to Devonian rocks that form a sequence of broad level highlands separated by long narrow
valleys. At least 156 potentially-hazardous locations exist on the site.
Soil Profile Ground Water Flow

4. Areal map and Contaminated Areas

5. Proposed Remediation Approach reported in the ROD and
Expected Results
• Remediation Approaches
• Prevent exposure to contaminated media by human and biological receptors
• Air stripper for VOC
• Granular activated Carbon (GAC) for VOC remediation
• Discharge of Effluent via holding tank and piping to green pond brook
• Protect uncontaminated media for future use
• Minimize migration of contaminants to adjacent media
• Protect environmental receptors
• Installation of a Vegetated Soil Cover Mat Con Asphalt Cap and Continued Implementation of Land Use
and Access Restrictions
• Excavation of Soil with PCB, LEAD and detected contaminants
• Pre-treatment System of GW .
• Results
• The Selected Remedy will ensure that risks remain below
– The 1x10-6 cancer risk level
– Hazard Index of less than 1.0.
• This level falls at the lower end of the USEPA's target risk range of 10-4 to 10-6. There are no short-term
threats associated with the Selected Remedy that cannot be readily controlled. In addition, no adverse cross-
media impacts are expected from the Selected Remedy.