Client: Independent Oil Company
Type of Facility: Service Station
Location: Hopkinsville, Kentucky

Separate phase gasoline was present in five monitor wells at an active gasoline station at a maximum thickness of 1.7 feet. Separate phase product was absent following three 8 hour EFR® events, which were conducted at a cost of $8,415. A fourth EFR® event was subsequently conducted to further reduce dissolved phase concentrations.

Client: Environmental Consulting Firm
Type of Facility: Car Rental Facility
Location: Alcoa, Tennessee

A small amount of separate phase gasoline (0.16 feet) existing in a single monitor well was removed after a single 8 hour EFR® event at a cost of $2,778. Two additional EFR® events were conducted to reduce dissolved phase concentrations. The client is initiating a modeling effort to take the site to "monitoring only" status.

Client: Environmental Consulting Firm
Type of Facility: Cemetery (former UST site)
Location: Memphis, Tennessee

A single monitor well at a cemetery/funeral home property previously contained free product. Two 8 hour EFR® events were conducted at a cost of $4,900. Free product was absent and dissolved phase benzene was reduced to 15 ppb and TPH to 5.9 ppm (from 431 ppm). Based upon the success of EFR® at the site, a site specific standard is being sought by the client to allow the site to transition to "monitoring only."

Client: Environmental Consulting Firm
Type of Facility: Truck Stop
Location: Commerce, Georgia

A pump and treat/soil vapor extraction system was implemented at the site, which was unsuccessful in fully removing free product from three monitor wells. As much as >1 feet of free product persisted at the site. Three EFR® events were conducted at the site at a cost of $7,961, after which free product was no longer detected.

Client: Major Oil Company
Type of Facility: Service Station
Location: Memphis, Tennessee

As much as 0.53 feet of product was detected in two monitor wells adjacent to the dispenser islands and diesel USTs at a closed service station property. Product was absent following the second EFR® event. A total of $11,350 was expended for these two EFR® events, inclusive of recovered fluids disposal. (24424)

Client: Environmental Consulting Firm
Type of Facility: Service Station
Location: Atlanta, Georgia

EFR® has been implemented at a state trust fund site with as much as two feet of free phase gasoline in fourteen monitor wells. As many as eight wells have been simultaneously utilized for extraction. An estimated total of over 5,257 equivalent gallons of gasoline have been recovered during 16 EFR® events at a cost of $49,680 (i.e. ~$9.50 per equivalent gallon). (jacksonf)

Client: Environmental Consulting Firm
Type of Facility: Service Station
Location: Caro, Michigan

EFR® was conducted for a total of 30 hours over a two week period at a site in east central Michigan. Free product levels were reduced by approximately one-half following three EFR® events (24 hours of extraction) and a calculated total of over 1,200 equivalent gallons of gasoline were removed.

Client: Environmental Consulting Firm
Type of Facility: New Car Dealership
Location: Linwood, Michigan

Hydraulic oil was released from hydraulic lifts at a dealership. As much as 2 feet of free phase hydraulic oil existed in three monitor wells. The hydraulic oil was removed from the site following only four EFR® events conducted at a total cost of only $10,953.

Client: Environmental Consulting Firm
Type of Facility: Wastewater Treatment Plant
Location: Bay City, Michigan

Diesel fuel was present in a single monitor well at a measured thickness of 0.40 feet. The diesel was removed following only three EFR® events performed at a total cost of $8,295.

Client: Environmental Consulting Firm
Type of Facility: Naval Air Station
Location: Millington, Tennessee

This site containing a sheen of gasoline was treated with two EFR® events at a total cost of $4,554. The sheen was removed and the dissolved phase concentrations were reduced to the extent that site closure was obtained at the site. (ensafe-flyclub)

Client: Environmental Consulting Firm
Type of Facility: Naval Air Station
Location: Millington, Tennessee

A site containing as much as 0.28 feet of fuel oil in a single monitor well was subjected to four EFR® events at a cost of $9,108. The fuel oil was removed and site closure was subsequently obtained.
(ensafe fuel farm)

Client: Environmental Consulting Firm
Type of Facility: Service Station
Location: Clay City, Kentucky

Dissolved phase concentrations were reduced by 85% at this site after conducting a single EFR® event at a total cost of $2,950.

Client: Environmental Consulting Firm
Type of Facility: Tire Store
Location: Campbellsville, Kentucky

A single EFR® event was conducted at a cost of $2,950 at a site containing 0.20 feet of mixed gasoline and diesel fuel product. Free product was successfully removed from the site and dissolved phase concentrations were reduced below the groundwater standard of 0.4 ppm.