A comprehensive list of all sites remediated nationwide by EcoVac Services using their patented SURFAC process including a statistical summary of results.

2. SURFAC®
RESULTS
Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to and/or
during EFR
®
# Wells With SPH Prior to
and/or during SURFAC
® Aggregate SPH Thickness SURFAC
®
Project Dates Status
Nashville, TN Limestone at <2 feet
Inactive Service Station below grade Bailing IMPE - 1 (0.25 ft.) 0.25 feet September 2005 CLOSURE
(gasoline)
Clarksville, TN 10 (0.51, 0.77, 0.01,0.03, 0.53 feet Additional UST
Active Service Station Alluvial/Fluvial/Fill 6 EFR
®
events 0.77, 1.00, 0.10, 2 (0.25 -0.28 ft.) (EFR Reduced August/December 2005 System Leak
(gasoline/diesel) 1.05, and 1.19 feet) from 4.73 ft.) Detected
Martinsville, VA
Inactive Service Station Silty Clay 2 MPE events by others - 1 (0.02 ft.) 0.02 ft. November 2005 No SPH
(gasoline)
Chase City, VA
Inactive Service Station Silty Clay - 2 (0.06 - 0.16 ft.) 0.22 ft. March-April 2006 ~0.02 ft. in one well
(gasoline) (90% reduction)
Danville, VA Bailing (6 gal); ~0.25 ft.
Former Bulk Plant Sandy Clay 11 MPE events - 2 (0.14 and 0.30 ft.) 0.44 ft. March-April 2006 returned in 1 well
(gasoline/diesel fuel) by others (51 gal) (48% reduction)
Andrews AFB, MD Sand and gravel 0.01 ft. returned
overlain by silt Bailing & Wicks (3 gal) - 5 (0.05-1.01 ft.) 2.12 ft. April-May 2006 in two wells
(JP-4/av gas) (>99% reduction)
Baltimore, MD
Former Pipeline Site Medium grain sand Skimmer Pumps; Bailing - 4 (0.01-0.80 ft.) 1.56 ft. May 2006 CLOSURE
(gasoline)
Glenmont, NY Silty sand/ sand
Active Bulk Plant with some gravel Pump & Treat 6 (0.01-0.07 ft.) 0.17 ft. June 2006 ч71% reduction
(No. 2 fuel oil) on top of bedrock
District Heights, MD
Former fuel oil USTs Silty sand/sandy silt Belt Skimmers 3 (0.08-0.60 ft.) 0.78 ft. August 2006 CLOSURE
(No. 6 fuel oil/ Bunker fuel)
Pell City, AL 0.22 ft. August/
Refractory Clay/chert 7 EFR
®
events 3 (0.20, 0.04, and 3.23 feet) 2 (0.02 and 0.18 ft.) (EFRΠ Reduced September 2006; No SPH
(gasoline/diesel fuel) from 3.27 ft.) January 2007
Watervliet, MI 0.04 ft.
Former Service Station Glacial till Product pumping/ 4 (0.79, 0.02, 0.18, 1.05, 2 (0.02 ft. each) (EFRΠ Reduced November/ NO SPH
(gasoline) 4 EFR
®
events and 0.89 feet) from 9.33 ft.) December 2006 (closure requested)
Huntsville, AL Sheen
Service Station Clay 4 EFR
®
events 1 (7.05 feet) 2 (sheen) (EFRΠ Reduced January/ No SPH
(gasoline/diesel fuel) from 7.05 ft.) February 2007
Montgomery, AL 0.01 ft.
Former Service Station Clay w/ some silt 5 EFR
®
events 1 (1.47 feet) 1 (0.01 ft.) (EFRΠ Reduced February-March 2007 0.10 feet returned in October 2007
(gasoline) and sand from 1.47 ft.) (93% reduction)
Carrollton, AL
DOT Facility Clay w/ very MEME Events - 1(0.12 ft.) 0.12 ft. March/April 2007 No SPH
(gasoline) fine sand (by others)
Tucker, GA Total fluid pumps/ 8 (2.23, 0.83, 3.22, 2.83, 4.23 ft.
Former Hospital Silt/Saprolite skimmer pumps/ 1.61, 1.51, 1.61, 4.00, 5 (1.20, 0.28, 0.68, 0.29, (EFRΠ/pumping/skim March/April 2007 SPH in 2 wells
(diesel) 7 EFR®
events and 2.20 feet) and 0.07 feet) reduced from 16.32 ft.) June/July 2007 (>75% reduction)
Columbus, GA Silt and clay
Airport Hangar w/ some medium 1 EFR
®
event - 2 (0.07 and 0.28 ft.) 0.35 ft. March/April 2007 CLOSURE
(Jet A) sand
Norman, OK SPH plume 550'x350'
Former Service Stations Fine grain sand w/ SPH Plume Measured 550 ft. X 350 ft. <3.5 ft./well May-June 2007 No SPH
(gasoline) clay layers with SPH thicknesses up to 3.5 feet
Sulligent, AL Silty sand Pump & Treat,Bailing;
Active Service Station grading downward 11 MPE events Historically SPH in 4 wells 1 (0.03 feet) plus 0.03 feet June/July 2007 Intermittent SPH in 1 well
(gasoline) to some gravel by others Elevated benzene
Baltimore, MD
Former Pipeline Site Medium grain sand Skimmer Pumps; Bailing - 2 (0.25 and 0.32 ft.) 0.57 ft. July 2007 CLOSURE
(gasoline)

3. Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to
and/or during EFR®
# Wells With SPH Prior to
and/or during SURFAC
®
Aggregate SPH
Thickness
SURFAC®
Project Dates Status
Russellville, AL 3 MPE events No SPH
Municipal Maintenance Shop Silty Clay by others - 3 (0.02 to 0.20 ft.) 0.00 ft. Jul - Oct 2007 ISCO-EFRΠ Reduced BTEX to <CALs
(gasoline) (Elevated benzene) EFR
®
pending due to benzene spike.
Ramer, AL Silt/clay with 3 MPE events No SPH
Service Station some sand lenses by others - 1 (0.01 feet) 0.01 ft. August 2007 ISCO-EFRΠ Implemented
(gasoline/kerosene) (Elevated benzene) Febuary 2009 & January 2010
Mustang, OK
Service Station sandstone Air Sparging/SVE 5.40 ft. Sep 2007 CLOSURE
(gasoline) siltstone (2 wells)
Butler, AL Sandy clay grading 0 (historically 2 wells No SPH
Active Service Station downward to clayey - - contained SPH) Sep & Oct 2007 ISCO-EFRΠ Implemented
(gasoline) fine grain sand August 2009
Manchester, GA silt, some clay, 1 MPE event ISCO-EFR® implemented Feb 2010 &
Auto Dealership and saprolite (by others) - 1 (0.53 ft.) 0.53 ft. Oct 2007 Feb 2011.SPH returned in 2 wells (0.02
(gasoline) to 0.15 ft).Client delineating SPH plume
Oklahoma City, OK Silty sand with clay
Construction Maintenance Shop underlain by a coarsening - 6 (0.01, 0.07, 0.09, 0.14, 0.32, and 0.40 feet) 1.03 ft. Oct & Nov 2007 CLOSURE
(diesel fuel) sand with depth SPH Plume Measured 80 ft. X 80 ft.
Cincinnati, OH Weathered shale and limestone Pump & treat (5+ yrs.);
Former Bus/Trolley Station bedrock overlain by 12 MPE events by other - 5 (0.37, 0.91, 0.06, 0.63, 1.99 ft. Dec 2007 CLOSURE
(gasoline/diesel fuel) silty clay and 0.02 feet)
Jonesboro, GA
Service Station Silt/Saprolite 11 EFR
®
events 5 (0.20, 0.57, 0.04, 1.58, 0 Reduced from Dec 2007 No SPH
(gasoline) and 0.16 feet) 1.79 feet by EFRΠ
Cherry Point MCAS, NC Manual Bailing;
Vehicle Maintenance Passive Skimming 1 (0.06 feet) 1 (0.02 feet) 0.02 ft. Dec 2007 No SPH
(waste oil) Feb 2008
Del City, OK Clay, silty clay, sandy clay 0.00 feet
Service Station with sand with little EFR
®
events 7 (0.05 to 0.96 ft.) (Reduced from Jan - Mar 2008 CLOSURE
(gasoline) clay lenses 2.29 feet by EFRΠͿ
Birmingham, AL 0.05 feet No SPH
Service Station Weathered shale/siltstone 6 EFR
®
events 1 (0.52 feet) 2 (0.02 and 0.03 feet) (Reduced from Feb & Mar 2008 ISCO-EFRΠ Implemented
(gasoline) 0.52 feet by EFRΠͿ Jan 2015
Valdosta, GA Sandy clay with 6 MPE events Apr 2008, Apr 2009 No SPH
Service Station interbedded clay layers (by others); 1 (0.62 feet) 4(0.70, 1.18, 0.97, 3.88 feet Jan 2010, Sep 2010 SURFACΠ Implemented in Jul 2013
(gasoline) SVE; skimming and 1.03 feet) Jul 2013 to reduce BTEX concentartions
Mt. Olive, AL 0.00 ft. 0.00 feet
Service Station EFR® events; 4 (1.77, 0.04, 0.14, (Reduced with (Reduced by May 2008 No SPH
(gasoline) fixed system and 2.66 feet) EFR®/system) EFR
̺
Ȍ
Yukon, OK 0.17 feet
Former Service Station Sandy clay SVE and Pump & Treat 6 (0.22, 0.12, 0.09, 0.02, 2 (0.04 to 0.13 feet) (Reduced from May - June 2008 No SPH
(gasoline) Systems 0.03, and 0.10 feet) 0.57 feet by EFRΠͿ
Oklahoma City, OK SVE/air sparging;
Service Station Silty Clay pump & treat Several wells with SPH Several wells with SPH May-August 2008 CLOSURE
(gasoline)
Fort Wayne, IN Gravel to sandy, silty Product pumping and No SPH
Library clay fill hand bailing 6 (0.03, 0.13, 0.25, 4 (0.01, 0.21, 0.24, 0.49 feet (6 wells) June/July 2008 Requested Closure
(diesel fuel) 0.01, 0.04, and 0.02 feet) and 0.03 feet) (awaiting state response)
El Reno, OK
Former Service Station Silty clay Air Sparging/SVE 1 (0.48 ft.) 0.48 feet July 2008 CLOSURE
(gasoline)
Marietta, OK
Service Station Silty clay 7 (0.01 to 1.26 ft.) 2.54 feet July 2008 CLOSURE
(gasoline)
Greenville, GA Clay w/ some silt Excavation +
Public Works Facility and sand four MPE events 8 (1.37, 0.04, 2.15, 0.40, 4 (0.49, 0.16, 0.22, 0.32 feet) 9 wells with up to August 2008 CLOSURE
(diesel fuel) (by others) 0.45, 2.74, 2.00, 0.32 feet) 2.74 feet

4. Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to
and/or during EFR®
# Wells With SPH Prior to
and/or during SURFAC
®
Aggregate SPH
Thickness
SURFAC®
Project Dates Status
Lawton, OK
Service Station Silty clay Surfactant/ISCO Dissolved Phase Plume Measured 200 X 100 feet 0.01 feet Aug to Oct 2008; CLOSURE
(gasoline) (by another firm) with benzene concentrations greater than 20 ppm (Elevated benzene) Feb, May 2009
Cromwell, OK 2.56 feet Aug to Nov 2008;
Service Station Silty Sandstone SPH Plume Size 240 x 100 ft. 9 (0.03 to 0.97 feet) (Reduced from Jan 2009; CLOSURE
(gasoline) 15 (0.02 to 2.90 feet) 9.46 feet by EFRΠͿ Mar to Apr 2009
Madison, TN Silty Clay over 12 (3.69, 1.39, 4.15, 9.24, 2.16,
Former Tire Plant limestone/bedrock 10 EFR
®
events 4.62, 2.22, 0.76, 0.75, 2.40, 3 (0.54, 0.89, 0.10 feet) 1.53 feet Sept/Oct 2008 CLOSURE
(Stoddard Solvent) 0.03, 2.37 feet)
Norman, OK SVE/AS
Service Station Silty Sand P&T 4.76 feet Nov/Dec 2008 CLOSURE
(gasoline)
Mustang, OK
Former Service Station Silty Clay skimmer pump system 5 (0.20 -3.00 feet) 5 (0.20-3.00 feet) 5 wells (0.20 to 3.0 feet) November 2008 No SPH
(gasoline) (closure monitoring)
Auburn, AL ISCO-EFR®
Implemented Jan 2009.
Service Staition Sandy Clay 3 EFR
®
events 1 (0.01 feet) 0 0 January 2009 SPH appeared in 2 ISCO injection wells.
(gasoline) No SPH after a few EFR®
events.
Tallassee, AL Periodic MPE events 0 (historically 4 wells 0 (historically 4 wells
Service Station Sand with Clay (by others) contained SPH) contained SPH) 0 (historically 4 wells January 2009 No SPH
(gasoline) contained SPH)
Waycross, GA
Former Service Station Silty Sand EFR
®
events 2 (0.54 and 1.64 feet) 2 (0.08 to 0.99 feet) 1.07 feet Feb/Mar 2009 SPH in 2 wells (0.03' and 0.80')
(gasoline) (62% SPH reduction)
Jenks, OK Dissolved Phase Plume Measured 100 ft. X 75 ft. Soil benzene >20ppm;
Service Station Very Fine Sand with soil benzene concentrations >20 ppm Dissolved benzene Feb to Mar 2009 CLOSURE
(Gasoline) with groundwater benzene concentrations >8.5 ppm >8.5 PPM
Oklahoma City, OK
Former Bulk Storage Sandstone skimmer pump system 4 (0.29, 0.74, 2.40, and 2.93 feet) 6.38 Mar to Apr 2009 CLOSURE
(gasoline) SPH Plume Measured 120 ft. X 120 ft.
Oklahoma City, OK Silty clay, silt,
Service Station and siltstone with Surfactant Flush SPH Plume Measured 180 ft. X 120 ft. 14 wells (49.25 feet) Mar to May 2009; CLOSURE
(gasoline) some sand (by another firm) with SPH thicknesses greater than 7 feet
Athens, AL No SPH
Service Station Sandy silty clay Passive skimmers 0.26 feet April 2009 ISCO-EFRΠ Implemented
(gasoline) August 2015
Eastman, GA 0.04 feet 0.06 in one well
Service Station Sand, silt, and clay Hand bailing and 3 (0.08, 0.16, 1.75 feet) 1 (0.04 feet) (Reduced from April 2009 ISCO-EFRΠ Implemented
(gasoline) Sorbent socks 1.97 feet by EFRΠͿ February 2010 & June 2011
Millport, AL Silty clay to clayey sand 0.00 feet
Service Station underlain by med- 4 EFR
Π
ĞǀĞŶƚƐ 1 (0.94 feet) 0.00 feet (Reduced from July 2009 No SPH
(Gasoline) coarse sand 0.94 feet by EFRΠͿ
Ames, IA Silty clay/fine sand with MPE events (by others);
Service Station some coarse sand layers bailing; absorbent socks; 0.71 feet July 2009 CLOSURE
(gasoline) on top of bedrock sulfate injection
Athens, AL Silty clay with
Service Station chert ledges Excavation 2 (0.02, 0.20 feet) 1(0.01 feet) 0.01 August 2009 No SPH
(gasoline)
Little Rock, AR 2.69 feet
Service Station Silty clay MPE events 17 (0.06 to 3.20 feet) 12 (0.0t to 0.42 feet) (Reduced from August 2009 0.03 ft. in one well
(Gasoline) and sand (by others) 21.39 feet by EFRΠͿ (99.8% SPH reduction)
Birmingham, AL 0.17 feet
Service Station Clay/limestone MPE events 2 (0.14, 0.76 feet) 2 (0.02, 0.15 feet) (Reduced from October 2009 No SPH
(gasoline) (by others) 0.90 feet by EFRΠͿ Reduced BTEX Levels
Birmingham, AL 0.08 feet SPH returned in 1 well (0.13 feet)
Service Station Clay/limestone MPE events 4 (0.40, 0.78, 1.12, 1.30 feet) 2 (0.02, 0.06 feet) (Reduced from October 2009 in Nov 2010
(Gasoline) (by others) 3.60 feet by EFRΠͿ Reduced BTEX Levels
Jersey City, NJ SPH Plume Measured 80 ft. X 120 ft. 33.62 feet (16 wells) Aggregate of 0.82 feet
Former Manufacturing Plant Sandy silt, clay, gravel, limited excavation 4 wells (1.04 to 2.45 feet) 16 wells (0.02 to 8.21 feet) +7 addl NAPL wells January 2010 to (98% reduction)
(Pine Tar) and fill materials (limited # wells existing) 7 wells added later =23 total NAPL wells March 2011
Montgomery, AL 0.02 feet
Former Service Station Silty sand with little clay 22 EFRΠ
ĞǀĞŶƚƐ 7 (0.02 to 4.85 feet) 1 (0.02 feet) (Reduced from January 2010 No SPH
(Gasoline) 9.54 feet by EFRΠͿ
Tifton, GA 0 (historically 4 wells 0.00 feet
Service Station Sandy clay 3 EFRΠ
ĞǀĞŶƚƐ contained SPH) 0.00 feet (Reduced by EFR®) January 2010 No SPH
(Gasoline) Reduced BTEX Levels
3 (0.40, 0.26, 0.05 feet)
1 (0.26 feet)
7 (0.0.02 - 1.71 feet)

5. Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to and
during EFR®
# Wells With SPH Prior to
and/or during SURFAC
®
Aggregate SPH
Thickness
SURFAC®
Project Dates Status
Lawrenceville, GA Pump and treat system No SPH
Former Gas Station Silt/Clay/Saprolite for over 10 years 4 (0.02, 0.11, 0.03, 0.19 feet) 0.35 ft. May 2010 ISCO-EFRΠ Scheduled
(Gasoline/Diesel Fuel)
Marietta, GA
Active Car Wash Silt/Clay/Saprolite 7 EFRΠ Events 4 (0.28, 0.08, 0.98, 0.28 feet) 1 (0.33 feet) 0.33 ft. June 2010 CLOSURE
(Gasoline)
Cardwell, MO SPH Plume Measured 65 ft. X 200 ft.
Former Bulk Plant Sandy clay 1 EFRΠ
ĞǀĞŶƚ 9 (0.01 to 0.75 feet) 9 (0.04 to 1.57 feet) 4.60 feet (9 wells) October 2010 85% reduction in aggregrate
(Gasoline) thickness
Marietta, GA 4 (0.01 to 3.04 feet) 3 (0.29 to 0.39 feet) 0.95 feet April & May 2011 SPH in 9 wells (0.08 - 2.16 feet)
County Administrative Office After Additional Wells: Following SPH Delineation: 3.00 feet aggregate.
(Diesel Fuel) 8 (0.22 - 2.24 feet) 7.51 feet July & August 2012 EFR®
& SURFAC®
Pending
Ft. Jackson, SC
AAFES Gas Station Poorly graded sands MPE events 2 (0.10, 0.12 feet) 0.10 feet May 2011 No SPH
(Gasoline) with some silt and clay (by others) ISCO-EFR®
Pending
Clinton, KY May, June,
Former Service Station Sandy Clay EFRΠ Events 8 (0.02 to 1.57 feet) 5 (0.01 to 3.96 feet) 5.27 feet August, & November 2011 No SPH
(Gasoline) ISCO-EFR®
Implemented
Atlanta, GA
Service Station Silt with some sand and SVE/Air Sparging 0 (Historically 2 wells contained SPH) 0.00 feet June 2011 ISCO-EFR®
Pending
(Gasoline) clay/Saprolite
Pawhuska, OK
Former Service Station Sandstone 4 (0.01 - 0.24 feet) 0.29 feet January 2011 CLOSURE
Gasoline
Wagener, SC
Service Station Clayey sand to 1 (0.45 feet) 2 (0.01, 0.16 feet) 0.17 feet June & July 2011 No SPH
(Gasoline) sandy clay
Lafayette, AL 0.00 feet No SPH
Former Gas Station Silty sand and clay MPE event 1 (0.52 feet) 0.00 feet (Reduced from July 2011 ISCO-EFR®
implemented
(Gasoline/Diesel Fuel) (by other) 0.52 feet by EFRΠͿ August 2011 & February 2012
Ashland, OH MPE Events No SPH
Gas Station Silty sand (by others) 3 (0.01 to 0.31 feet) 0.33 feet July 2011 Closure Is Being Requested
(Gasoline) Hand Bailing
Alpharetta, GA
Former Illegal Dump Saprolite Pump & treat system 0 (Elevated hydrocarbon levels) 0.00 feet August 2011 Awaiting Results
(Naphthalene/Xylenes/PCE/TCE/Etc.)
Montgomery, AL Pump & treat/SVE system August 2011 & SPH in 2 existing wells (0.06 - 0.68 ft.) &
Gas Station Silty sand with little clay 3 MPE events 2 (0.26 feet) 0.26 feet August 2012 2 newly installed injection wells (0.66 -
(Gasoline) (by others) 0.93 ft.) possibly due to drop in water table.
Board Camp, AR August 2011
Former Service Station shale 9 wells with SPH 15.56 feet August 2012 CLOSURE
Gasoline August 2013
Roswell, GA
Service Station Sandy silt 18 MPE events 1 (0.32 feet) 0.32 feet August & September 2011 No SPH
(Gasoline) (by others)
Gainesville, GA
Service Station Silty clay Oxidant Injection 0 (Elevated hydrocarbon levels) 0.00 feet September 2011 Awaiting Results
(Gasoline) (by other)
Atlanta, GA 3.30 feet
Service Station Silty clay 1 EFRΠ Event and 7 (0.04 to 4.04 feet) 8 (0.02 to 4.04 feet) (Reduced from October & November 2011 CLOSURE
(Gasoline) 2 pilot tests 9.08 feet by EFRΠͿ
Mobile, AL 0.00 feet
Beverage Distributor Silty sand and clay 14 EFRΠ Events 1 (0.32 feet) 0.00 feet (Reduced from October & November 2011 CLOSURE
(Diesal Fuel) 0.89 feet by EFRΠͿ
Gadsden, AL No SPH
Former Gas Station Sand with gravel 8 MPE events 0 (Elevated hydrocarbon levels up to 6,639 ug/l benzene) 0.00 feet November 2011 ISCO-EFR
®
Implemented
(Gasoline) (by others) May 2013
Minerva, OH November & December 2011
Manufacturing Facility Sand and gravel with 10 (0.79 to 4.72 feet) 22.29 feet January & February 2012 48% SPH Reduction
(Hydraulic Oil) silt and clay
Anniston, AL Skimmer pumps for ~3 yrs. No SPH
Former Gas Station Siltstone, sand, silt, and clay 8 MPE events - 1 (0.05 feet) 0.05 feet December 2011 ISCO-EFR
®
Implemented
(Gasoline) (by others) April 2012
West Memphis 4 wells in Tank Field with SPH
Service Station Sand backfill 3 wells outside Tank Field with SPH 1.75 feet December 2012 CLOSURE
Gasoline
Lenox, GA 0.00 feet
Gas Station Sandy Clay 3 EFRΠ Events 3 (0.01 to 0.85 feet) 0.00 feet (Reduced by EFR
®
) January 2012 Awaiting Results
(Gasoline)

6. Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to and
during EFR®
# Wells With SPH Prior to
and/or during SURFAC
®
Aggregate SPH
Thickness
SURFAC®
Project Dates Status
Fairburn, GA 2 EFRΠ Events No SPH
Gas Station Sandy silt and clay 2 MPE events (by others) 3 (0.28 to 3.37 feet) 3 (0.20 to 0.72 feet) 0.92 feet January 2012 ~80% Reduction In Benzene
(Gasoline) Sulfate Injection Concentrations
Roswell, GA
Service Station Sandy silt MPE events 4 (0.04, 0.11, 0.16, 0.44 feet) 0.75 feet January & February 2012 Awaiting Results
(Gasoline) (by others)
Columbus, OH
Bus Garage Silt, clay, sand, and gravel 23 MPE Events 5 (0.01 to 0.91 feet) 1.67 feet February & March 2012 CLOSURE
(Diesel Fuel) (by others)
Valdosta, GA Sandy clay with Historically SPH in 2 wells
Service Station interbedded clay layers Numerous MPE Events 0 (Elevated hydrocarbon levels) 0.00 feet May 2012 Awaiting Results
(Gasoline) (by others)
Ft. Gordon, GA
Fire Station Silty sand 4 EFRΠ Events 5 (0.01 to 0.82 feet) 5 (0.05 to 0.44 feet) 1.06 feet May 2012 Awaiting Results
(Gasoline)
Waycross, GA Sand overlain
Service Station by sandy clay Numerous MPE Events 2 (0.04 to 0.52 feet) 0.52 feet June 2012 Awaiting Results
(Gasoline) (by others)
Enid, OK
Service Station Clayey Silt, Sand AS/SVE 14 (0.01 to 0.43 feet) 1.26 feet July 2012 No SPH
(Gasoline)
Nashville, TN 1 (1.98 feet) July & August 2012 No SPH - 95.2% reduction of TCE after
Clay & limestone Elevated hydrocarbon levels up to 150,000 ug/l TCE 0.00 feet May & June 2014 SURFAC® & 1st phase of ISCO-EFR®
(TCE)
Alma, AR silty clay 2 wells with elevated benzene levels
Former Service Station overlying none 6 wells with SPH 11.68 feet September 2012 No SPH
Gasoline sandy clay
Theodore, AL Sand, No SPH
Service Station some silt and clay MPE Events 0 (Elevated hydrocarbon levels up to 39,158 ug/l benzene) 0.00 feet September 2012 ISCO-EFR
®
Implemented
(Gasoline) (by others) October & November 2012
Lewisville, AR 4 wells with elevated benzene levels
Service Station silty clay none 11 wells with SPH 14.09 feet September 2012 No SPH
Gasoline September 2012
Wynona, OK 18 wells with elevated benzene levels No SPH
Service Station Clayey silty sand 8 wells with SPH 3.56 feet November & December 2012 Reduced Benzene
Gasoline Met Cleanup Criteria
Mobile, AL
Medical Center 12 EFRΠ Events 4 (0.02 to 0.60 feet) 3 (0.02 to 0.23 feet) 0.29 feet December 2012 0.23 feet of SPH in 1 well
(Diesel Fuel)
Pinon, CO
9 tank field wells with SPH December 2012 Awaiting Results
Norman, OK
Former Service Station sandy clayey silt 6 wells with SPH 0.48 feet January & February 2012 CLOSURE
Gasoline
Decatur, AL Pump & treat system February 2013
Pet Food Plant Clay 22 EFRΠ Events 5 (0.01 & 1.21 feet) 2.78 feet Feb & Mar 2014 No SPH
(Diesel Fuel) Jan 2015
Atlanta, GA Silt and sand with Sodium persulfate Injection
Water Treatmeatmet Plant trace of clay (by other) 0 (Elevated hydrocarbon levels up to 19,000 ug/l benzene) 0.00 feet February 2013 Awaiting Results
(gasoline)
Apache, OK
Service Station Clayey Sand with Silt DPE system 4 (0.25 to 1.35 feet) 12.45 March to Closure
(Gasoline) June 2013
Cullman, AL Silty clay with 0 (Elevated hydrocarbon No SPH
Food Blending Plant gravel 29 EFRΠ Events 2 (0.02 to 0.06 feet) levels up to 2,460 ug/l)) 0.00 feet March 2013 ISCO-EFR
®
Implemented Mar 2013,
(Gasoline/Diesel Fuel) Mar 2014 & Jan 2015
Clio, AL Sandy clay DPE system
Former Gas Station and sand for 3 years 7 (0.01 to 0.48 feet) 2 (0.03 to 0.48 feet) 0.51 feet March 2013 Awaiting Results
(Gasoline) 7 EFRΠ Events
Mustang, OK
Service Station Sandstone 2 (0.01 & 0.05 feet) 0.06 feet March & April 2013 CLOSURE
(Gasoline)
Tulsa, OK
Service Station (UST Tank Field) Sand Fill Hand bailing 2 (0.01 & 0.01 feet) 0.02 feet April 2013 No SPH
(Gasoline)
Prague, OK April & May 2013
Former Service Station Siltstone none 13 wells with up to 6.15 feet December 2013 to Monitoring
Gasoline January 2014
(Mini-flush Program) May & November 2014

7. Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to and
during EFR®
# Wells With SPH Prior to
and/or during SURFAC
®
Aggregate SPH
Thickness
SURFAC®
Project Dates Status
New York, NY April & May 2013 (1st phase)
Real Estate Property Sandy with silt and clay 4 EFRΠ Events 6 (1.22 to 6.44 feet) 17.14 feet Aug, Sep, & Oct 2014 >99% reduction in SPH
Fuel Oil #6
Tuscaloosa, AL 4 MPE Events 0 (Elevated hydrocarbon No SPH
Service Station Weathered Shale (by others) 3 (0.07 to 0.66 feet) levels up to 1,867 ug/l)) 0.00 feet July 2013 ISCO-EFR
®
Implemented
(Gasoline) 2 EFRΠ Events August 2013
Oklahoma City, OK
Abandoned Site Silty sand none 28 wells with SPH or Sheen 0.56 feet July & August 2013 No SPH
Diesel Fuel with Crude mix
Perkins, OK Reduced Benzene
Service Station sandstone none 3 wells with elevated benzene levels 0.00 feet August 2013 CLOSURE
Gasoline
Foley, AL No SPH
Service Station Clayey sand/Sandy clay MPE Events 1 (1.25 feet) 1.25 feet August & September 2013 ISCO-EFR
®
Implemented
(Gasoline) (by others) October & November 2012
Warner Robins, GA Hand bailing 11.58 feet November 2013 3 wells with SPH (0.01, 0.10, & 0.64 ft.)
Air Force Base Sand EFRΠͬWŝůŽƚ dĞƐƚƐ 29 (0.01 to 1.38 feet) 23 (0.01 to 2.09 feet) (Reduced from January, February, April, May, 97% reduction
(Jet Fuel) 22.15 feet by EFRΠͿ June, and July 2014
Foley, AL No SPH
Service Station Clayey sand/Sandy clay MPE Events 1 (1.25 feet) 1.25 feet August & September 2013 ISCO-EFR
®
Implemented
(Gasoline) (by others) October & November 2012
Oklahoma City, OK
Service Station Silty Sandstone 9 (0.01 to 2.39 feet) 8.52 feet October 2013 to 90% SPH Reduction
(Gasoline) January 2014
Wapanucka, OK
Former Service Station Silty clayey sand none 7 wells (0.06 to 0.86 feet) 3.96 feet February & March 2014 CLOSURE
Gasoline
Fort Stewart, GA February 2014
Army Base Sand 5 EFRΠ Events 5 (0.25 to 4.50 feet) 4 (0.02 to 2.48 feet) 4.34 feet November 2014 No SPH
(Gasoline/Diesel Fuel) December 2014
Hendrix, OK
Former Service Station Silty Sand 4 (sheen to 1.56 feet) 2.49 feet Mar 10 to 14, 2014 No SPH
Gasoline
Jones, OK 6 wells with SPH Reduced Benzene
Former Service Station Silty sand 4 wells with elevated benzene levels 3.04 feet April & May 2014 CLOSURE
Gasoline
El Reno, OK
Service Station Fine Sand with silt & Clay 3 (0.02 to 0.53 feet) 0.90 feet April, May, & June 2014 CLOSURE
(Gasoline)
Shawnee, OK 8 wells with SPH June & July 2014
Service Station Sandstone 6 wells with elevated benzene levels 15.75 feet December 2014 & No SPH
Gasoline January 2015
Yukon, OK 8 wells with SPH Reduced Benzene
Former Service Station Silty Sandstone 14 wells with elevated benzene levels 5.70 feet August & September 2014 CLOSURE
Gasoline
Salt Lake City, UT 4 wells in Tank Field with SPH 0.94 feet No SPH outside basin
UST Basin Sand Backfill Surfactant Flush 3 wells outside Tank Field with SPH 0.85 feet October 2014 NFA
Diesel Fuel
Vinita, OK
Former Service Station Shale w/Limestone Lenses 6 (0.01 to 0.12 feet) 0.32 feet February 2015 No SPH
Gasoline
Eufaula, OK
Service Station Siltstone 11 (0.02 to 2.48 feet) February & March 2015 Monitoring
Gasoline
Kearny, NJ Hand Bailing
Truck Terminal Fine to Coarse Sand MPE Events 2 (0.01 feet each) 0.02 feet March 2015 Monitoring
(Gasoline/Diesel Fuel) with Gravel (by others) Elevated Benzene levels across site)
Vinita, OK 2 (0.12 to 0.21 feet) Reduced Benzene
Foremer Service Station Shaley limestone 6 wells with elevated benzene levels 0.33 feet August & September 2015 CLOSURE
Gasoline
Oklahoma City, OK
Service Station Sandstone 0 (Elevated hydrocarbon levels in 4 wells) 0.00 feet February 2015 CLOSURE
(Gasoline)
Choctaw, OK
Former Service Station Sandstone 4 wells with elevated benzene levels 0.00 feet Mar 15 to 21, 2015 CLOSURE
Gasoline
Oklahoma City, OK 3 wells with SPH Reduced Benzene Levels
Travel Plaza Silty Sand 15 wells with elevated benzene levels March & April 2015 No SPH
(Gasoline)

8. Site Subsurface Prior Remedial Efforts
# Wells With SPH Prior to and
during EFR®
# Wells With SPH Prior to
and/or during SURFAC
®
Aggregate SPH
Thickness
SURFAC®
Project Dates Status
Stillwater, OK
Service Station Siltstone 4 (0.66 to 1.17 feet) 3.36 feet April 2015 CLOSURE
(Gasoline)
Olive Branch, MS
UST Basin Sand Backfill Hand Bailing 4 wells in Tank Field with SPH 1.24 feet May 4 to 11, 2015 CLOSURE
Gasoline
Bristow, OK
Service Station Sandstone 8 (0.05 to 4.27 feet) 18.50 feet July & August 2015 CLOSURE
(Gasoline)
Ratliff City, OK
Service Station Sandstone 2 (0.03 to 7.08 feet) 7.11 feet August 2015 CLOSURE
(Gasoline)
Columbus, GA
Former Service Station Clayey Sand 2 (0.09 to 0.11 feet) 0.20 feet October 2015 CLOSURE
(Gasoline)
Florence, AL Silty Clay with
Former Service Station Scatterered Limestone 2 (0.25 to 0.29 feet) 6 (0.01 to 0.10 feet) 0.24 feet October 2015 No SPH
(Gasoline) Lenses