Fuel Oil Spill Release Discovery 1991 vey-sol Surfactant Pilot Scale Application July 2014

Transcription

1 SURFACTANT ENHANCE ED PUSH-PULL PULL METHOD FO OR IN-SITU REMEDIATION OF PE ETROLEUM CONTAMINATED SOIL AND GR ROUNDWATER Prese enter George (B Bud) Ivey Ivey Interna ational Inc. 22 nd International Petroleum Environmental Conference November 17 to 19, 2015 Denve er, CO Grand Hyatt Dow wntown Denver

2 Chester River Hospital Center Fuel Oil Spill Release Discovery 1991 vey-sol Surfactant Pilot Scale Application July 2014 (Evaluation Repo ort January 2015) Remediation Team Members

3 Public Domain Presentation CHESTER RIVER HOSPITAL CENTER GROUNDWATER R REMEDIATION 2013/2014 ACTION PL LAN MODIFICATIONS CASE NO KE PILOT TEST EVALUATION REPORT AND PROPOSED 2015 ACTION PLAN JANUARY 19, 2015

4 Site Location Chestertown MD USA

5 e Background Information er River Hospital Center 7.1 Acres evelopment since 1935 as hospital il release discovered May 1991 (10,000 Gal. tank was over a weekend) likely leaking for years Water supply well 850 ft. (259 m) down gradient, shut until remediation system was installed dwater remediation system installed Earth Data report indicated 83,452 Gal. (3 315,900 L) of L removed from site between 1991 to July 2012 ion of MDE 12 month Closeout Monitoring July 2012 to 2013, and the treatment system was shut off; evels of TPH (DRO) detected in June 2013 at Eight (8) of teen (17) downgradient monitoring wells & Treatment System Turned Back On! holder Concerns Started Mounting!

6 stertown Wellhead Protection Area (Unconfined Aquifer) Site upup-gradient an <850 Ft. From Tow Production Wells

7 logy & Hydrogeology ndwater and Surface water drains into the er River, a tidal tributary of Chesapeake e Bay h west) ed sand and silty sand to approximately 120 ft. a Formation, primary aquifer near site; sauken Formation, generally absent near site) r-table elevations fluctuate seasonally between feet [Smear Zone] ] with depth to groundwater d ft. bgs on-site ertown s water supply from an Unconf Unconfined er Chester River Hospital Center

8 Historical Product Le MW001 MW002 MW003 MW004 MW005 MW006 MW007 MW008 5/22/1992 6/7/1994 5/9/1996 5/28/1997 7/23/1999 6/29/2001 1/16/2002 5/8/ /7/2002 3/11/2003 8/19/2003 2/23/2004 8/17/2004 2/11/2005 9/14/2005 4/28/ /8/2006 7/2/2007 1/11/2008 7/25/2008 3/3/2009 9/21/2009 4/19/2010 1/5/ /17/2011 6/25/ /7/2013 MW008 MW009 MW010 MW010R MW011 MW012 MW013 MW014 MW015 MW016 MW017 MW018 MW019 Historical Product Levels (ft.) /28/1991 9/9/1992 6/15/1994 4/18/1996 4/1/ /10/ /19/ /5/2001 2/21/2002 6/12/ /5/2002 3/25/2003 8/11/2003 1/26/2004 7/13/ /2/2004 5/12/ /9/2005 7/12/ /13/2006 7/13/2007 1/4/2008 6/23/2008 1/12/2009 7/13/2009 1/19/2010 7/28/2010 4/1/ /13/2011 8/23/ /15/2013

9 Recent Product Levels (ft.) MW001 MW002 MW003 MW013 MW014 MW015 MW023 MW024 MW025 MW037 MW040 MW041 MW049 MW050 RW004 MW004 MW005 MW008 MW009 MW010R MW011 MW012 MW016 MW017 MW018 MW019 MW020 MW021 MW022 MW028 MW029 MW031R MW032 MW033 MW034 MW035 MW042 MW043 MW044 MW045 MW046 MW047 MW048 RW01B RW02D RW03B

10 akeholder Concerns Chester River ospital Center ime to Closure 20 Yrs.) igh Costs $$$/yr. O&M nvironmental Risks gal Liability edia Relations ublic Perception Chestertown Water Supply Hydraulic Con ntrol Off-site TPH Migration Risk to Well Field (Town Aquifer) Legal Concerns Communicatio ons [Did not know about 2012 closure] Public Perception Maryland Department of Environment (MDE) Regulatory Oversight Off-site Migration Clean-up Standards Mediation Legal Concerns Public Perception

11 eatment System Back kground ver twenty (20) years CRHC s focus was: move liquid petroleum hydrocarbons (free product) mediate the groundwater using a Pu ump and Treat &T) system consisting of six (6) recov very wells, four (4) e-filters (sediment and Fe), and two (2 2) MYCELXCELX ration units, with discharge to storm sewer expanded to Seven (7) Recovery we ells and present ion/treatment system System Designed for Gallon ns of groundwater inute (379 to 455 L/min) extraction ra ate requiring ent (They have effective hydraulic control on-site site),452 Gallons (315,900 L) of LNAPL product recovere ed between July 2012

12 Treatment System ecovery wells pump into holding tank (wet well) Pre-treatment Filtration system (sediment)

13 Pump and Treat - Treatment System Wet Well Bag Filters MYCELX Treatment Di ischarge to Storm Sewer Under MDE Discharge

14 Pump and Treat -Treatment System overy ells 0 gallons per inute) Wet Well (Holding tank, sample each well inflow) Bag Filter (Pre-tre eatment) Mycelx Treatment Storm W Discha (sample loc

15 Maryland Department of Environment GW Cleanup Standards for Type I and II Aqui Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE Naphthalene TPH-DRO TPH ug/ /L mg/l 5 1, ,000 NA 20 NA Interim Risk Based Goal: < 0.1

16 How Did We At IVEY Get Involved

17 SURFACTANT ENHANCE ED PUSH-PULL PULL METHOD Pilot Scale In-s situ Application July Aug gust 2014 Completion of Three (3) Push-Pull Pull Applications

18 e Layout and draulic Control

19 Environmental Monitoring & Pilot scale layout

20 Correction: RW3B Screen Interval Starts at 9.45 ft.

21 North South

22 Injection and Extraction

23 r

24 1:50 Ratio of Ivey-sol To Water Fo or The Pilot Sc cale Applicat tion

25 IVEY Developed Field Testing Method for Surfa Has >96% correlation with laboratory testin

26 THE FUTURE OF FIELD TESTING FOR SURFACTANT

27 IVEY-SOL

28 IVEY-SOL

29 njection Radius of Influence Area of Influence r= 10 to 15 feet r

30 Extraction Radius of Influence

31 TPH-DRO Mass Rec covery Calculations -sol Injection #1 426% Increase in TPH-DRO -sol Injection #2 6,240% Increase in TPH-DRO -sol Injection #3 6,846% Increase in TPH-DRO -sol Injection #1 7,333% Increase in TPH-DRO -sol Injection #2 5,133% Increase in TPH-DRO -sol Injection #3 5,156% Increase in TPH-DRO -sol Injection #1 Not Calculated (Missed Sample) -sol Injection #2 18,966% Increase in TPH-DRO -sol Injection #3 3,226% Increase in TPH-DRO -sol Injection #1 948% Increase in TPH-DRO -sol Injection #2 824% Increase in TPH-DRO -sol Injection #3 3,737% Increase in TPH-DRO Averaged TPH-DRO Concentration Pre Injection Eve [Pre Ivey-sol injection TPH-DRO (ppm) X Concentrations ( Averaged TPH-DRO Concentration Post Injection Eve [Post Ivey-sol Injection TPH-DRO (ppm) X Concentrations Mass Recovery = [Averaged TPH-DRO Concentration Post Injection Event] X [Averaged TPH-DRO Concentration Pre Injection Even = % Mass Recovery Increase For The Ivey-sol Push-Pull Ev Mass Recovery Calculations Completed by EBA Engineering

32 SUMMARY esult of the investigations, analysis, and calculations of mass recovery the Tech determined that in the Push-Pull wells recovery rates were significantly enhan e thousand percent (1,000%) to Eighteen thousand percent (18,000%) TPH polation: bstantial soil and groundwater remediation results can be achieved from usi ush-pull Ivey-sol process at the origin nal up-gradient source area and the sev id to down-gradient regions of the TPH plume fective for treating sorbed TPH in smear zone sy to inject Push and does not require pressure using gravity feed ld surfactant test minimized volume of groundwater extracted during the P ase cale: DE approved full scale application in June 2015 (Priority Zone 1, 2, 3, 4 Approach) rted Full Scale applications on August 31, 2015 (Early results look very promising)

33 CONTACT INFORMATION Ivey Interna ational Inc. George (Bud) Ivey, B.Sc., President and Senior Remediation Specialist Mobile: CES, CESA, P.Chem., EP budivey@ive eyinternational.com Web: nternational.com