Environmental Remediation and Financial Services, Case Studies

September 9, 2010

Military Bases Case Studies

Listed below is a representative sampling of recent ERFS CASE STUDIES within the Military / Defense Industry. For additional details and technical data, contact an ERFS representative at 1-866-855-ERFS.


Industry:	Military / Defense

Challenge:	Two sites with multiple COCs

Solution:	One site in closure monitoring; second site in final polishing phase


	Site Setting or Use:	Defense Fuel Supply Center Bulk Storage Facility
	Location:	Florida
	COCs:	BTEX, PAH, MTBE
	Treatment Interval Soil Type:	Sand and silt
	Depth to Groundwater:	3 - 8 ft bgs
	Plume Size:	6,000 SF
	Injection Array:	Lateral and vertical wells
	Baseline Conditions:	50,000 mg/l TPH
	Current or Final Conditions:	LNAPL removed and all wells in compliance except for 3 exceeding TPH goal in groundwater


Industry:	Military / Defense

Challenge:	Base housing and former fuel stand impacted with LNAPL

Solution:	Use Propagations to apply reagents under housing units and remove LNAPL


	Site Setting or Use:	Military Base
	Location:	Maryland
	COCs:	BTEX and MTBE
	Treatment Interval Soil Type:	Fine to medium sand
	Depth to Groundwater:	5 ft bgs
	Plume Size:	4,000 SF
	Injection Array:	6 Props.*
	Baseline Conditions:	LNAPL > 0.5 ft
	Current or Final Conditions:	LNAPL < 0.01 ft


Industry:	Military / Defense

Challenge:	Implement client design for large-scale remediation project

Solution:	ERFS ProxiONE for consultants program: Site now receiving continuous treatment subject to federal spending levels with approximately 150 out of 400 well treatment events completed


	Site Setting or Use:	Military Base
	Location:	Pennsylvania
	COCs:	Jet fuel
	Treatment Interval Soil Type:	Fine, silty sand
	Depth to Groundwater:	3 ft bgs
	Plume Size:	4 acres
	Injection Array:	More than 100 vertical wells
	Baseline Conditions:	LNAPL and high levels of BTEX in groundwater
	Current or Final Conditions:	LNAPL eliminated in areas that have received treatment; BTEX concentrations reduced by over 75%


Industry:	Military / Defense

Challenge:	Failure by several previous vendors to inject oxidizers in difficult treatment area

Solution:	Successful injection of several thousand gallons of several oxidizer types at varying soil depths. Treatment continuing under cost-and-time efficient, performance-based contract


	Site Setting or Use:	Military Base
	Location:	Texas
	COCs:	TCE and DCE
	Treatment Interval Soil Type:	Silty clay with small amounts of gravel; semi-confined water table
	Depth to Groundwater:	18 ft bgs
	Plume Size:	4,000 SF
	Injection Array:	10 Props.*
	Baseline Conditions:	Total CVOC at 10 mg/l in groundwater
	Current or Final Conditions:	> 95% reduction in one portion of treatment area and 60% in the other portion


Industry:	Military / Defense

Challenge:	Conduct pilot test implementing client designs

Solution:	ERFS Tension System: discrete interval injections targeting highest contamination and fracture density zones.


	Site Setting or Use:	Military Base
	Location:	New York
	COCs:	CVOC
	Treatment Interval Soil Type:	Bedrock
	Depth to Groundwater:	50 ft bgs
	Plume Size:	2,000 SF
	Injection Array:	4 open-hole bedrock wells with packers isolating impacted intervals
	Baseline Conditions:	5 mg/l CVOC in groundwater
	Current or Final Conditions:	< 1 mg/l CVOC after multiple permanganate injections


Industry:	Military / Defense

Challenge:	High CVOC in groundwater over 1 acre within former military landfill

Solution:	Natural attenuation via biodegradation documented within 60 days of last treatment with CVOC concentrations continuing to decline rapidly via NA pathways


	Site Setting or Use:	Military Base along San Diego Bay
	Location:	California
	COCs:	CVOC
	Treatment Interval Soil Type:	Fine sand 5 ft bgs
	Depth to Groundwater:	35,000 SF
	Plume Size:	5 ft bgs
	Injection Array:	16 Props.* and 8 vertical injectors
	Baseline Conditions:	Nearly 200,000 ug/l total CVOC
	Current or Final Conditions:	Treatment ceased at 65% total CVOC destruction


Industry:	Military / Defense

Challenge:	Implement treatment programs based on several client designs

Solution:	Three Propagations set at multiple intervals at each of three target wells


	Site Setting or Use:	Military Base
	Location:	Alabama
	COCs:	BTEX and MTBE
	Treatment Interval Soil Type:	Plastic clay
	Depth to Groundwater:	20 ft bgs
	Plume Size:	1 acre
	Injection Array:	9 Props.* located at three target wells
	Baseline Conditions:	Benzene avg. 4,500 ug/l BTEX avg. 8,700 ug/l (LNAPL encountered in one well just prior to treatment)
	Current or Final Conditions:	Benzene avg. 1,950; BTEX avg. 7,000 ug/l; Additional treatments to be specified after several months of monitoring

* Propagation delivery devices

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