surfac reults (2016 2-11) binder

SURFAC® RESULTSSite 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 feetInactive 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.) DetectedMartinsville, 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, VAInactive 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, MDFormer 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 �71% reduction(No. 2 fuel oil) on top of bedrock

District Heights, MDFormer 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.) (EFR� 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) (EFR� Reduced November/ NO SPH(gasoline) 4 EFR® events and 0.89 feet) from 9.33 ft.) December 2006 (closure requested)

Huntsville, AL SheenService Station Clay 4 EFR® events 1 (7.05 feet) 2 (sheen) (EFR� 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.) (EFR� Reduced February-March 2007 0.10 feet returned in October 2007(gasoline) and sand from 1.47 ft.) (93% reduction)

Carrollton, ALDOT 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, (EFR�/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 clayAirport Hangar w/ some medium 1 EFR® event - 2 (0.07 and 0.28 ft.) 0.35 ft. March/April 2007 CLOSURE

(Jet A) sandNorman, 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 benzeneBaltimore, MD

Former Pipeline Site Medium grain sand Skimmer Pumps; Bailing - 2 (0.25 and 0.32 ft.) 0.57 ft. July 2007 CLOSURE(gasoline)

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 SPHMunicipal Maintenance Shop Silty Clay by others - 3 (0.02 to 0.20 ft.) 0.00 ft. Jul - Oct 2007 ISCO-EFR� 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-EFR� Implemented(gasoline/kerosene) (Elevated benzene) Febuary 2009 & January 2010

Mustang, OKService 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-EFR� 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 plumeOklahoma 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, GAService 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 EFR�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 feetService 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 EFR��Birmingham, AL 0.05 feet No SPHService Station Weathered shale/siltstone 6 EFR® events 1 (0.52 feet) 2 (0.02 and 0.03 feet) (Reduced from Feb & Mar 2008 ISCO-EFR� Implemented

(gasoline) 0.52 feet by EFR�� Jan 2015Valdosta, 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 SURFAC� 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 feetService 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��

Yukon, OK 0.17 feetFormer 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 EFR��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 SPHLibrary 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, OKService 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

Site Subsurface Prior Remedial Efforts# Wells With SPH Prior to

and/or during EFR®# Wells With SPH Prior to and/or during SURFAC®


Lawton, OKService 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 2009Cromwell, 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 EFR�� Mar to Apr 2009Madison, 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/ASService 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 wellsService 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, OKFormer 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 SPHService Station Sandy silty clay Passive skimmers 0.26 feet April 2009 ISCO-EFR� Implemented

(gasoline) August 2015Eastman, 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-EFR� Implemented(gasoline) Sorbent socks 1.97 feet by EFR�� February 2010 & June 2011

Millport, AL Silty clay to clayey sand 0.00 feetService Station underlain by med- 4 EFR�� 1 (0.94 feet) 0.00 feet (Reduced from July 2009 No SPH

(Gasoline) coarse sand 0.94 feet by EFR��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 withService 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 feetService 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 EFR�� (99.8% SPH reduction)Birmingham, AL 0.17 feetService 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 EFR�� Reduced BTEX LevelsBirmingham, 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 EFR�� Reduced BTEX LevelsJersey 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 feetFormer Service Station Silty sand with little clay 22 EFR�� 7 (0.02 to 4.85 feet) 1 (0.02 feet) (Reduced from January 2010 No SPH

(Gasoline) 9.54 feet by EFR��Tifton, GA 0 (historically 4 wells 0.00 feet

Service Station Sandy clay 3 EFR�� 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)

Site Subsurface Prior Remedial Efforts# Wells With SPH Prior to and

during EFR®# Wells With SPH Prior to and/or during SURFAC®


Lawrenceville, GA Pump and treat system No SPHFormer 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-EFR� Scheduled

(Gasoline/Diesel Fuel)Marietta, GA

Active Car Wash Silt/Clay/Saprolite 7 EFR� 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 EFR�� 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) thicknessMarietta, 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, SCAAFES 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® PendingClinton, KY May, June,

Former Service Station Sandy Clay EFR� 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, GAService 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/SaprolitePawhuska, OK

Former Service Station Sandstone 4 (0.01 - 0.24 feet) 0.29 feet January 2011 CLOSUREGasoline

Wagener, SCService Station Clayey sand to 1 (0.45 feet) 2 (0.01, 0.16 feet) 0.17 feet June & July 2011 No SPH

(Gasoline) sandy clayLafayette, 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 EFR�� August 2011 & February 2012

Ashland, OH MPE Events No SPHGas 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, GAFormer 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 2011Former Service Station shale 9 wells with SPH 15.56 feet August 2012 CLOSURE

Gasoline August 2013Roswell, GA

Service Station Sandy silt 18 MPE events 1 (0.32 feet) 0.32 feet August & September 2011 No SPH(Gasoline) (by others)

Gainesville, GAService 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 EFR� 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 EFR��

Mobile, AL 0.00 feetBeverage Distributor Silty sand and clay 14 EFR� Events 1 (0.32 feet) 0.00 feet (Reduced from October & November 2011 CLOSURE

(Diesal Fuel) 0.89 feet by EFR��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 2011Manufacturing 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 clayAnniston, 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 SPHService Station Sand backfill 3 wells outside Tank Field with SPH 1.75 feet December 2012 CLOSURE

GasolineLenox, GA 0.00 feetGas Station Sandy Clay 3 EFR� Events 3 (0.01 to 0.85 feet) 0.00 feet (Reduced by EFR®) January 2012 Awaiting Results(Gasoline)




Fairburn, GA 2 EFR� Events No SPHGas 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, GAService 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 wellsService 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 EFR� 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 overlainService 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 afterClay & 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 SPHGasoline sandy clay

Theodore, AL Sand, No SPHService 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 2012Lewisville, AR 4 wells with elevated benzene levelsService Station silty clay none 11 wells with SPH 14.09 feet September 2012 No SPH

Gasoline September 2012Wynona, 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 BenzeneGasoline Met Cleanup Criteria

Mobile, AL Medical Center 12 EFR� 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, OKFormer Service Station sandy clayey silt 6 wells with SPH 0.48 feet January & February 2012 CLOSURE

GasolineDecatur, AL Pump & treat system February 2013

Pet Food Plant Clay 22 EFR� Events 5 (0.01 & 1.21 feet) 2.78 feet Feb & Mar 2014 No SPH(Diesel Fuel) Jan 2015Atlanta, 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, OKService Station Clayey Sand with Silt DPE system 4 (0.25 to 1.35 feet) 12.45 March to Closure

(Gasoline) June 2013Cullman, AL Silty clay with 0 (Elevated hydrocarbon No SPH

Food Blending Plant gravel 29 EFR� 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 systemFormer 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 EFR� EventsMustang, 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 2013Former 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




New York, NY April & May 2013 (1st phase)Real Estate Property Sandy with silt and clay 4 EFR� Events 6 (1.22 to 6.44 feet) 17.14 feet Aug, Sep, & Oct 2014 >99% reduction in SPH

Fuel Oil #6Tuscaloosa, AL 4 MPE Events 0 (Elevated hydrocarbon No SPHService 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 EFR� Events August 2013Oklahoma City, OK

Abandoned Site Silty sand none 28 wells with SPH or Sheen 0.56 feet July & August 2013 No SPHDiesel Fuel with Crude mix

Perkins, OK Reduced BenzeneService Station sandstone none 3 wells with elevated benzene levels 0.00 feet August 2013 CLOSURE

GasolineFoley, 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 EFR�� 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 EFR� June, and July 2014Foley, 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, OKService Station Silty Sandstone 9 (0.01 to 2.39 feet) 8.52 feet October 2013 to 90% SPH Reduction

(Gasoline) January 2014Wapanucka, OK

Former Service Station Silty clayey sand none 7 wells (0.06 to 0.86 feet) 3.96 feet February & March 2014 CLOSUREGasoline

Fort Stewart, GA February 2014Army Base Sand 5 EFR� 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 2014Hendrix, OK

Former Service Station Silty Sand 4 (sheen to 1.56 feet) 2.49 feet Mar 10 to 14, 2014 No SPHGasoline

Jones, OK 6 wells with SPH Reduced BenzeneFormer Service Station Silty sand 4 wells with elevated benzene levels 3.04 feet April & May 2014 CLOSURE

GasolineEl 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 2014Service Station Sandstone 6 wells with elevated benzene levels 15.75 feet December 2014 & No SPH

Gasoline January 2015Yukon, OK 8 wells with SPH Reduced Benzene

Former Service Station Silty Sandstone 14 wells with elevated benzene levels 5.70 feet August & September 2014 CLOSUREGasoline

Salt Lake City, UT 4 wells in Tank Field with SPH 0.94 feet No SPH outside basinUST Basin Sand Backfill Surfactant Flush 3 wells outside Tank Field with SPH 0.85 feet October 2014 NFADiesel FuelVinita, OK

Former Service Station Shale w/Limestone Lenses 6 (0.01 to 0.12 feet) 0.32 feet February 2015 No SPHGasoline

Eufaula, OKService Station Siltstone 11 (0.02 to 2.48 feet) February & March 2015 Monitoring

GasolineKearny, 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 BenzeneForemer Service Station Shaley limestone 6 wells with elevated benzene levels 0.33 feet August & September 2015 CLOSURE

GasolineOklahoma City, OK

Service Station Sandstone 0 (Elevated hydrocarbon levels in 4 wells) 0.00 feet February 2015 CLOSURE(Gasoline)

Choctaw, OKFormer Service Station Sandstone 4 wells with elevated benzene levels 0.00 feet Mar 15 to 21, 2015 CLOSURE

GasolineOklahoma 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)




Stillwater, OKService 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 CLOSUREGasoline

Bristow, OKService Station Sandstone 8 (0.05 to 4.27 feet) 18.50 feet July & August 2015 CLOSURE

(Gasoline)Ratliff City, OKService 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

surfac reults (2016 2-11) binder

Environment