Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and...

27
Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen Miller Dr. Paul Johnson Naval Facilities Engineering Service Center Arizona State University [email protected] [email protected] MTBE Biobarriers - NBVC, Port Hueneme, CA 1

Transcript of Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and...

Page 1: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Demonstration and Installation of MTBE Biobarriers at Naval Base

Ventura County, Port Hueneme, CA

Karen Miller Dr. Paul Johnson Naval Facilities Engineering Service Center Arizona State University

[email protected] [email protected]

MTBE Biobarriers - NBVC, Port Hueneme, CA 1

Page 2: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Treatment of MTBE-contaminated aquifers through:

• inoculation with MTBE-degrading organisms (MC-100 and SC-100)

• aeration/ oxygenation of the aquifer

2 -

Biobarrier Technology Overview

Treatment of MTBE-contaminated aquifers through:

• inoculation with MTBE-degrading organisms (MC­100 and SC-100)

• aeration/ oxygenation of the aquifer

Apply biobarrier technology to a mixed MTBE-BTEX

dissolved plume

O2

Saturated Zone

Zone

LUST

Injection

MTBE Biobarriers NBVC, Port Hueneme, CA

MTBE Plume

Generator

Groundwater Flow

Vadose

Oxygen

Monitoring wells

Inoculated Zone

Page 3: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

3 -

NBVC, Port Hueneme, CA

ESTCP Biobarrier Demonstration

N

P&T System

MTBE Biobarriers NBVC, Port Hueneme, CA

Page 4: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Demonstration System Design

(1) Treatment system must not alter the natural flow path

(2) Modular and flexible with respect to operating conditions.

(1) Close well spacing

(2) Injection at two depths

(3) Pulsed gas injection (air and O2)

[trapped gas supplies oxygen for days after injection]

MTBE Biobarriers - NBVC, Port Hueneme, CA 4

Page 5: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Biobarrier Subsurface Features

Monitoring wells O2 delivery wells

silt/sand

medium ­fine sand

15 ft

20 ft

Subs

urfa

ce F

eatu

res

K in

crea

ses

Dee

p

Shal

low

0.3 ft/d

MTBE Biobarriers - NBVC, Port Hueneme, CA 5

Page 6: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

6 MTBE Biobarriers - NBVC, Port Hueneme, CA

SCSC--100 &100 & AirAir

Section AirAirOxygenOxygenAir Only

MCMC--100 &100 &Oxygen Only OxygenOxygen

MC-100 & Oxygen SC-100 & Oxygen Oxygen Only Air Only

AirAir

OxygenOxygen

SCSC--100 &100 & OxygenOxygen

AirAirFootage 0 – 120 ft

120 – 220 ft 220 – 290 ft 290 - 360 ft 360 - 410 ft 410 – 500 ft

Page 7: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

MTBE Distribution

Pre-gas 20injection

-20 -600 -550 -500 -450 -400 -350 -300 -250 -200 -150 -100 -50 0 5

1 mo. post injection 20

1-20

-600 -550 -500 -450 -400 -350 -300 -250 -200 -150 -100 -50 0

2 yrs. post 0.1 20injection

-20 -600 -550 -500 -450 -400 -350 -300 -250 -200 -150 -100 -50 0 0.01

(mg/L)

Groundwater flow

MTBE Biobarriers - NBVC, Port Hueneme, CA 7

Page 8: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

TBA Concentrations

March 2002 South EM-6-7 EM-6-4 EM-6-1

202000

-20-20EM-1-2EM-1-4EM-1-6EM-1-8EM-1-10

North

11-600 -500 -400 -300 -200 -100 0-600 -500 -400 -300 -200 -100 0

October 2002

2020

EM-1-2EM-1-4EM-1-6EM-1-8EM-1-10

EM-6-1EM-6-4EM-6-7

North

South

0.10.100-20-20

-600 -500 -400 -300 -200-600 -500 -400 -300 -200 -100-100 00

0.010.01

Groundwater flow mg/L 0.0050.005

MTBE Biobarriers - NBVC, Port Hueneme, CA 8

Page 9: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

9 -

Final Remedy Options for NBVC

MTBE Biobarriers NBVC, Port Hueneme, CA

Page 10: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

• Installation Costs:$500K to install two additional biobarriers (a 400 foot wide and a 500 foot biobarrier)

• O&M Costs:$125K/year

• Advantage: –Completely contains MTBE plume–Protects against future spills–No groundwater or other disposal costs

Installation of Two Additional Biobarriers

• Installation Costs: $500K to install two additional biobarriers (a 400 foot wideand a 500 foot biobarrier)

• O&M Costs: $125K/year

• Advantage: –Completely contains MTBEplume –Protects against future spills –No groundwater or otherdisposal costs

MTBE Biobarriers - NBVC, Port Hueneme, CA 10

Page 11: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

11 -

MTBE Biobarrier Diagram

MTBE Biobarriers NBVC, Port Hueneme, CA

Page 12: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Leading Edge Biobarrier

• 400 feet wide biobarrier • Wells on 8 foot spacing (96 wells) • Multi-level injection depth

MTBE Biobarriers - NBVC, Port Hueneme, CA 12

Page 13: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

October 2002 (ug/L)

13 -

MTBE Isoconcentration Contour Map, October 2004

MTBE Biobarriers NBVC, Port Hueneme, CA

Page 14: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Status of NBVC Biobarriers, Oct 2004

• Eleven wells sampled along the lateral boundaries of the historical MTBE plume indicate that the lateral extent of the plume is remaining relatively stable.

• The monitoring data indicates that the leading-edge biobarrier is effectively containing the MTBE plume.

• The Navy is planning to shut down the pump and treat system after receiving approval from the Los Angeles Regional Water Quality Control Board.

MTBE Biobarriers - NBVC, Port Hueneme, CA 14

Page 15: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

3/7/2005

Prediction of Groundwater Quality Improvement Down-Gradient of In-Situ Permeable Treatment

Barriers and Fully Remediated Source Zones

NFESC POC: Laura YehASU Investigators: Paul Dahlen, Pamela Maass,

Dr. Paul Johnson

NATIONAL ENVIRONMENTAL TECHNOLOGY TEST SITE SERDP/ESTCP IPR 04

Page 16: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Technical Objective

Test our ability to anticipate changes in down-gradient water quality with time for permeable reaction barriers (PRB) that bisect dissolved plumes

PRB ?

This is important for

realistic expectations

performance

PMs and regulators to be able to establish

for PRB system

The movement of treated water and water quality improvements with time NOT the dynamics of

are the focus of this study detached plume movement

MTBE Biobarriers - NBVC, Port Hueneme, CA 16

Page 17: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Background

PRB Performance Monitoring & Issues

• Ideally, a PRB is installed at the leading edge of a plume; however, other factors may dictate its placement up-gradient - thereby bisecting the plume.

• Performance of PRB systems is generally determined by monitoring up- and down-gradient concentrations as well as concentrations in the treatment zone, and then looking for

PRB Monitoringchanges between them.

MTBE Biobarriers - NBVC, Port Hueneme, CA 17

Page 18: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Background

PRB Performance Monitoring & Issues Travel

Based on empirical observations, groundwater quality down-gradient of PRB’s rarely responds as quickly as anticipated based on concentrations measured in the treatment zone and conventional groundwater travel time/modeling estimates.

This can lead some to conclude that the system is “not working”.

Time

Time

Time

Time

Con

cent

ratio

n

MTBE Biobarriers - NBVC, Port Hueneme, CA 18

Page 19: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

NBVC Port Hueneme was chosen because:

• The site is already reasonably well-characterized

• There is a well-understood large-scale PRB, with extensive operating data, an accessible GeoProbe unit, and shallow groundwater.

• MTBE is a reasonable surrogate for other relatively recalcitrant chemicals

19 -

Field Site NBVC Port Hueneme was chosen because:

• well-characterized

extensive operating data, an accessible GeoProbe unit, and shallow groundwater.

• surrogate for other relatively recalcitrant chemicals

?

Performance Monitoring Region

System start-up Sept. 2000

ND

mg/L levels

MTBE Biobarriers NBVC, Port Hueneme, CA

The site is already reasonably

There is a well-understood large-scale PRB, with

MTBE is a reasonable (400+ wells)

Groundwater velocity: 1 ft/d

Page 20: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Field Work - Year 1Biobarrier Monitoring Wells

Water sampling at 11' and 17'

Detailed Sampling (Water samples and K estimates on 1' intervals from 9' to 20') Slug Test Sites

Soil Sample Locations

EM6-1EM6-2EM6-3EM6-4EM6-5EM6-6

EM6-7

EM6-8EM6-9EM6-10

EM6-11EM South EM North

ASU 7

ASU 6

ASU 1 ASU 2 ASU 4

ASU 3

ASU 8

ASU 5

CBC25 CBC37

CBC41

CBC40 CBC39

CBC38

CBC42

DS-1

EM1-3

EM1-4EM1-5

EM1-6

EM1-7EM1-8EM1-9

EM1-10

EM1-11

EM1-2 EM1-1DS-49

DS-48DS-47

DS-46

DS-45

SS-44

SS-43

SS-42

DS/SS-41

DS-40

DS-39

DS/SS-38

SS-37

SS-36

DS-35

DS-34

DS-33

SS-32

DS-31

DS/SS-30

DS/SS-29 DS-28

SS-27

DS-26 DS/SS-25

SS-24DS-23

SS-22

DS-21

SS-20 DS/SS-19

SS-18

DS-17SS-16

DS-15 DS/SS-14

DS-13

DS-12

DS-11DS-10DS-9DS-8

DS-7

DS/SS-6

DS-5

DS-4

DS-3

DS-2

Biobarrier

flow Groundwater

450

350

250

150

50

-50

-150

-250

-350 700 600 500 400 300 200 100 0 -100

Distance Along Biobarrier (ft)

MTBE Biobarriers - NBVC, Port Hueneme, CA 20

Page 21: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Recreated from pre-demonstration EM6-X concentrations and limited wellInitial Plume… data

[ft]

-600 -500 -400 -300 -200 -100 0

0

10

100

1000

1500

5000

10000

Biobarrier

MTBE Conc. [ug/L]

[ft]

100

200

300

400

Groundwater flow [at 1 ft/d]

MTBE Biobarriers - NBVC, Port Hueneme, CA 21

Page 22: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Year 1 Field Work Concentrations at 11 ft BGS (April + July data)

[ft]

-600 -500 -400 -300 -200 -100 0

0

0 25 50 100 150 200 250 300 350 400 450 500 550 600 650 700

MTBE Conc. [ug/L]

[ft]Biobarrier

0.02<K/Kmax<0.2

100

200

300

400

Groundwater flow [at 1 ft/d]

MTBE Biobarriers - NBVC, Port Hueneme, CA 22

Page 23: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Year 1 Field Work Concentrations at 13 ft BGS (April + July data)

[ft]

-600 -500 -400 -300 -200 -100 0

0

100

200

300

400

0 25 50 100 150 200 250 300 350 400 450 500 550 600 650 700

MTBE Conc. [ug/L]

[ft]Biobarrier

0.8<K/Kmax<1

Groundwater flow [at 1 ft/d]

MTBE Biobarriers - NBVC, Port Hueneme, CA 23

Page 24: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Concentrations at 17 ft BGS (April +Year 1 Field Work July data)

-600 -500 -400 -300 -200 -100 0

0

0 25 50 100 150 200 250 300 350 400 450 500 550 600 650 700

MTBE Conc. [ug/L]

[ft]

[ft]

Biobarrier

0.05<K/Kmax<0.1

100

200

300

400

Groundwater flow [at 1 ft/d]

MTBE Biobarriers - NBVC, Port Hueneme, CA 24

Page 25: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Concentrations along plume centerline (vertical slice) (April + July data)

Year 1 Field Work

-18

-16

-14

-12

-10

DS4

8

DS4

5

DS/

SS41

DS3

3

DS3

1

DS2

1

DS1

3

DS/

SS 6

0

0

0

0

0

0

0

0

0

0

5

0

0

1

0

1

0

0

2

1

6

25

3

7

3

3

1

27

580

6

2

6

13

17

14

14

31

536

7

5

10

7

18

32

120

471

216

12

9

10

20

35

480

317

180

182

6

14

13

10

14

29

80

148

394

77

34

17

16

13

13

15

27

222

482

140

86

10

11

13

12

33

168

352

418

513

507

[ft]

EM

6-6

0 50 100 150 200 250 300 350

Biobarrier Groundwater [ft]flow [at 1 ft/d]

MTBE Biobarriers - NBVC, Port Hueneme, CA 25

Page 26: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Transition Plan

• Disseminate results to RPMs via NFESC’s Technology Transfer Program (RITS, RPM newsletters, web page).

• Final Report to be “how to” manual with example and any new calculation tools developed from this work.

• Peer reviewed Journal article

• Workshop/presentation/poster (as desired), at the end of the project to be presented at the SERDP/ESTCP Symposium, Tri-Service Environmental Conference or a Battelle conference.

MTBE Biobarriers - NBVC, Port Hueneme, CA 26

Page 27: Attachment F: Demonstration and Installation of MTBE … · 2005. 3. 14. · Demonstration and Installation of MTBE Biobarriers at Naval Base Ventura County, Port Hueneme, CA Karen

Publications

• Johnson, P.C., K.D. Miller, and C.L. Bruce 2004. A Practical Approach to the Design, Monitoring, and Optimization of In-Situ MTBE Aerobic Biobarriers. NFESC Technical Report TR-2257-ENV

• Johnson, P.C., K.D. Miller, and C.L. Bruce. 2003. ESTCP Final Report, In-Situ Bioremediation of MTBE in Groundwater. NFESC Technical Report TR-2222-ENV

• Miller, K.D., P.C. Johnson and C.L. Bruce. 2003. ESTCP Cost and Performance Report, In-Situ Bioremediation of MTBE in Groundwater. NFESC Technical Report TR-2216-ENV

MTBE Biobarriers - NBVC, Port Hueneme, CA 27