Attachments.pdf

ATTACHMENT 1

Figures

Approximate Site Location

Sources: Esri, DeLorme, NAVTEQ, TomTom, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community

Site Location

Figure 1 Irrigation Operation and Maintenance Facility

Bureau of Indian Affairs Poston, Arizona

Site Location Map

DATUM:

WGS84

PROJECTION:

Mercator (A/S)

DATE 07/31/13

DWN. N.A.P.

SCALE 1" = 1 mi

APPRVD. S.R.

SHEET

of

Phone (907)563-0013 Fax (907)563-6713 µ 0 0.5 1

Miles Project No.:

34140023Do cu me nt Pa th : G

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!A

!A

!A

!A

!A !AAir S parge M anifold

S B-1

S B-3S B-4

S B-7 S B-6

S B-5S B-2

Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, and the GIS User Community

!A S oil Boring Approximate Extent of S oil Contamination Exceeding RS Ls µ

Figure 2 Irrigation Operation and M aintenance Facility

Bureau of Indian Affairs Poston, Arizona

Select Soil Analytical Results

DAT U M :

WGS 84

PROJECT ION:

M ercator (A/S )

DAT E 07/31/13

DWN. N.A.P.

S CALE 1" = 50'

APPRVD. S .R.

S HEET

of

Phone (907)563-0013 Fax (907)563-6713 Project No.:

34140023Do cu me nt Pa th : G

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-F igu re

2v 1.

m xd

0 50

Feet

AOC

Legend

Overlay Sources:

M ACTEC, Figure 2-2, 10/2010 Ninyo & M oore, Figure 3, 12/2010

Notes:

Dashed lines indicated underground piping.

Bolded non-detects have RLs that exceed RS L.

All depths in feet bgs.

Benzene and Ethylbenzene results in µ g/kg.

TPHG results in mg/kg.

† = indicates field duplicate µ g/kg = micrograms per kilogram mg/kg = milligrams per kilogram bgs = below the ground surface ND = not detected above RL in parentheses NE = not established RL = reporting limit RS L = regional screening level TPHG = total petroleum hydrocarbons as gasoline

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

10 52 ND (79) 360

12 790 ND (66) 450

14 700 ND (74) ND (150)

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

12 ND (28) ND (8,400) ND (17,000)

14 9,700 ND (54) ND (110)

14† 7,200 1,200 19,000

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

12.5 170 ND (54) ND (110)

14 5,200 130,000 600,000

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

12 ND (24) ND (63) ND (130)

14 5,500 ND (55) ND (110)

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

12 160 ND (65) ND (130)

12† 44 ND (63) 390

14 9,000 ND (2,700) 41,000

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

12 2,100 200 4,900 14 7,700 1,100 36,000

DEPT H T PHG BENZ ENE ET HY LBENZ ENE

12 ND (24) ND (64) ND (130)

14 2,500 ND (54) 400

ANALY T E RS L

T PHG NE

BENZ ENE 1,100

ET HY LBENZ ENE 5,400

Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, and the GIS User Community

Approxim ate Extent of Groundwa ter Contam ina tion Exceeding MCL s µ Figure 3

Irrigation Operation and Maintenance Facility Bureau of Indian Affairs

Poston, Arizona Select Groundwater Analytical Results, September 2013

DAT U M:

WGS84

PROJECT ION :

Merca tor (A/S)

DAT E 07/31/13

DWN . N .A.P.

SCAL E 1" = 50'

APPRV D. S.R.

SHEET

of

Phone (907)563-0013 Fax (907)563-6713 Project N o.:

34140023Do cu me nt Pa th : G

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0 50

Feet

AOC

Legend

Overlay Source:

MACT EC, Figure 2-2, 10/2010

SAMPL E BEN Z EN E T PHG

MW-4 11 2.7

SAMPL E BEN Z EN E T PHG

MW-11 2,000 14

SAMPL E BEN Z EN E T PHG

MW-23 69 0.76

SAMPLE BEN Z EN E T PHG

MW-24 48 0.61

MW-30† 29 0.62

AN AL YT E MCL

BEN Z EN E 5

T PHG N E

Notes:

Bolded results exceed MCL s All benzene results in µg/L All T PHG results in m g/L † = indicates field duplicate µg/L = m icrogram s per liter m g/L = m illigram s per liter MCL = m axim um contam inant level N E = not established T PHG = total petroleum hydrocarbons as gasoline

S B

S B

S B

1.5

D e p t h i n

F e e t

Distance in Feet

0 10

4.5

7.5

10.5

20 30 40 50 60

ND (28)

ND (8,400)

A A'

13.5

70 80 90 100 110 120

2,100

ND (54)

9,700

1,200

7,700

1.100

5,200

130,000

D r a w i n g

O

J O

B S

B I A

C R I T A C A D

E N

V I R O

D

W G

S F I G

U R E R P A P P D

W G

L a y o u t

X

U s e r

N

P E A C O

C K

S e p p m

X r e f s

I m a g e s

C R O

S S S E C T I O

N T I F F

Legend

10 200

Horizontal Scale: Feet

PROJECTION:

DATUM:

APPRVD.

DWN.

SCALE

DATE

SHOWN

JSR

02/05/2014

NAP

FIGURE 4

Irrigation Operation and Maintenance Facility

Bureau of Indian Affairs

Poston, Arizona

Cross Section A-A'

NA

Phone (907) 563-0013 Fax (907) 563-6713

ENVIRONMENTAL

REMEDIATION SERVICES, LLC

NA

PROJECT NO.

34140023

1.5 30

Vertical Scale: Feet

Silt

Sand

Sandy Silt

BOH

Soil Sample

TPHG

Benzene

Boring Diagram

W a t e

T a b l e

Extent of Soil

Contamination

Notes:

TPHG soil results in milligrams per kilogram.

Benzene soil results in micrograms per kilogram.

ND = not detected above RL in parentheses

RL = reporting limit

S B

M W

S B

S B

1.5

D e p t h i n

F e e t

Distance in Feet

0 10

4.5

7.5

10.5

20 30 40 50 60 70 80

ND (24)

ND (65)

2,500

ND (54)

2,100

7,700

1,100

ND (79)

ND (66)

ND (74)

B B'

13.5

D r a w i n g

O

J O

B S

B I A

C R I T A C A D

E N

V I R O

D

W G

S F I G

U R E R P A P P D a y o u t

X

U s e r

N

P E A C O

C K

S e p e f m a g e s

C R O

S S S E C T I O

N T I F F

Legend

10 200

Horizontal Scale: Feet

PROJECTION:

DATUM:

APPRVD.

DWN.

SCALE

DATE

SHOWN

JSR

02/05/2014

NAP

FIGURE 5

Irrigation Operation and Maintenance Facility

Bureau of Indian Affairs

Poston, Arizona

Cross Section B-B'

NA

PROJECT NO.

34140023

1.5 30

Vertical Scale: Feet Silty Sand

Sandy Gravel

Silt

Silty Clay

Sand

Sandy Silt

BOH

Soil Sample

TPHG

Benzene

Boring Diagram

W a t e

T a b l e

Extent of Soil

Contamination

Notes:

TPHG soil results in milligrams per kilogram.

Benzene soil results in micrograms per kilogram.

ND = not detected above RL in parentheses

RL = reporting limit

!A

!A !A

!A !A

B B'

A

A'

SB-3SB-4

SB-7 SB-6

SB-5

SB-1

SB-2

!A Soil Boring Location Cross Section A-A'

Cross Section B-B' µ Figure 6

Irrigation Operation and Maintenance Facility Bureau of Indian Affairs

Poston, Arizona Site Map

DATUM:

WGS84

PROJECTION:

Mercator (A/S)

DATE 07/31/13

DWN. N.A.P.

SCALE 1" = 125'

APPRVD. S.R.

SHEET

of

Phone (907)563-0013 Fax (907)563-6713 Project No.:

34140023Do cu me nt Pa th : G

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P.m xd

0 125

Feet

AOC

Legend

Source:

MACTEC, Figure 2-2, 10/2010

ATTACHMENT 2

AS/SVE Design

INSTALLATION

Contractor will be required to supply/perform the following:

• Soil vapor extraction blower mechanical and control equipment and housing unit for year round operation.

• Blower capable of delivering 500 scfm at 60 inches of water vacuum.

• Thermal/catalytic oxidizer system for treatment of collected vapors from the SVE system.

• Ancillary equipment associated with operation of SVE blower system. This includes flowmeters, temperature gauges, vacuum gauges, valves, vacuum relief valve, water knockout, etc.

• SVE system interconnected to the AS system such that the AS system will automatically shut down if the SVE system stops operating. SVE system will automatically shut down in the case of high liquid level in the knockout tank, excessive vacuum, excessive blower temperature.

• Connection from the existing SVE manifold to the blower.

• Connection to the local electric power company. Three-phase power is available on site.

• Installation of 15 air sparge wells. Figure 1 presents the locations of the new air sparge wells as well as proposed lateral airline locations. Figure 2 presents the air sparge wellhead detail.

• Air sparging compressor capable of delivering 300 scfm of air at 30 psi. Air sparge system will have an after cooler and appropriate flowmeters, pressure gauges, and temperature gauges.

• AS system will automatically shut down in the case of excessive pressure, excessive blower temperature.

• The AS/SVE system will have a telemetry system that at a minimum will notify the operator if the system has shutdown.

• Air sparge manifold will be 1-inch diameter steel piping and will contain 16 legs.

Each leg will supply an individual air sparge well. Each leg will contain a control valve to regulate flow to the air sparge well, a pressure gauge, and a flowmeter.

The flowmeter must be capable of measuring a flowrate of between 0 and 20 scfm.

• Air sparge lateral piping will be buried 12-inches below grade.

• Disposal of all waste.

SYSTEM OPERATIONS AND MAINTENANCE

12 months of AS/SVE system monitoring.

Monthly monitoring of SVE and off-gas treatment system.

!A

!A

!A

!A !A

AU

AU

AU

AU

AU

AU

AU

AU

AU

AU

AU

AU

AU

AU

AU

AS-01

SB-3SB-4

SB-7

SB-6

SB-5

Shop #636

Fuel Island

Office Trailer Office Trailer

Conc. Slab

O & M Building #635

Conex

Co nc

. W alk

Ta nk

C on ta in

Wa ll

Ta nk

C on ta in

Wa ll

Canopy Covered Concrete Slab

Co nc

. W alk

Contain Wall

SB-1

SB-2

MW-14

MW-10

MW-27

MW-13

AS-03

MW-30

MW-04 AS-04

MW-24

MW-23

MW-06MW-25

MW-05

MW-26

MW-11

AS-02

MW-29

MW-28

Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, and the GIS User Community

> Existing Air Sparge Well Location

> New Air Sparge Well

AU Monitoring Well

!A Soil Boring

# Valve Box Pressure Indicator

Fence Overhead Power Line SVE Pipe 'A' SVE Pipe 'B' SVE Pipe 'C' SVE Pipe 'D'

SVE Pipe 'E North' SVE Pipe 'E South' SVE Pipe 'F' SVE Horizontal Well 4" Blank Piping SVE Horizontal Well 4" - 0.010-inch Slotted Piping

Approximate Extent of Soil Contamination Exceeding RSLs SVE Manifold µ

Figure 1 Irrigation Operation and Maintenance Facility

Bureau of Indian Affairs Poston, Arizona

Air Sparge Well Locations

DATUM:

WGS84

PROJECTION:

Mercator (A/S)

DATE 07/31/13

DWN. N.A.P.

SCALE 1" = 50'

APPRVD. S.R.

SHEET

of

Phone (907)563-0013 Fax (907)563-6713 Project No.:

34140023Do cu me nt Pa th : G

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1v 1.

m xd

0 15 30

Feet

Legend

Overlay Sources:

MACTEC, Figure 2-2, 10/2010 Ninyo & Moore, Figure 3, 12/2010

Notes:

SVE Piping Screened Where Dashed

18" Traffic Rated Iron Well Cover

Cement Slurry Mix

0' BGS

1'

As Required

Concrete

D r a w i n g

O

J O

B S

B I A

C R I T A C A D

E N

V I R O

D

W G

S R P F I G

U R E W

D a y o u t

L A Y O

U T

U s e r

N

P E A C O

C K

J u l e f m a g e s

PROJECTION:

DATUM:

APPRVD.

DWN.

SCALE

DATE

1/4" = 1"

BA

07/23/14

NAP

FIGURE 2

IRRIGATION OPERATION AND MAINTENANCE FACILITY

BUREAU OF INDIAN AFFAIRS

POSTON, ARIZONA

AIR SPARGE WELL-HEAD

NA

PROJECT NO.

34140023

Keyed Notes:

1. Plug, 2" PVC SCH. 40 (T)

2. Tee, 2" PVC SCH 40 (SXSXT)

3. Air Sparge Well, 2" PVC SCH 40

4. 2" x 3/4" PVC SCH 40 Bushing (SXT)

5. 3/4" Hose Barb

6. Hose Clamp

7. Flexible Air Hose

8. 3/4" x 3/4" Male Adapter

9. 3/4" Duratec Air-Line

ATTACHMENT 3

Project Work Plan Outline

• Introduction

• Background

• Prior Contamination

• Current Contamination

• Project Work Plan Objectives

• Project Team, Organization, Responsibilities, and Subcontractors

• Logistics, Sequencing and Coordination

• Regulatory Requirements / RSLs

• Sampling and Analytical Methods

• AS/SVE Design and Installation

• AS/SVE Operations and Maintenance

• AS/SVE Performance Standards

• Groundwater Monitoring Program

• Monitoring Well Abandonment/Installation

• Project Reporting

• Project Completion Schedule

• Attachments

• HASP

• Optional Services

ATTACHMENT 4

Remedial Progress Report Outline

• Introduction

• Background

• Prior Contamination

• Project Team, Organization, Responsibilities, and Subcontractors

• Regulatory Requirements / RSLs

• Groundwater Monitoring

• Sampling and Analytical Methods

• AS/SVE Operations and Maintenance

• Discussion of Results

• Current Contamination

• Conclusions and Recommendations

• Attachments

ATTACHMENT 5

AS-SVE System Operation Schedule

ID Task Name Duration Start Finish

1 AS‐SVE System Operation 640 days Mon 6/1/15 Thu 3/2/17 2 Contract Award/NTP 1 day Mon 6/1/15 Tue 6/2/15 3 Task 1 Project Planning 89 days Tue 6/2/15 Sun 8/30/15 4 Initial Site Visit 1 day Fri 6/12/15 Sat 6/13/15 5 Draft Work Plan 45 days Tue 6/2/15 Fri 7/17/15 6 Draft Work Plan Review 30 days Fri 7/17/15 Sun 8/16/15 7 Final Work Plan 14 days Sun 8/16/15 Sun 8/30/15 8 Task 2 Air Sparge Well Installation 14 days Sun 8/30/15 Sun 9/13/15 9 Air Sparge Well Installation 14 days Sun 8/30/15 Sun 9/13/15 10 Task 3 SVE System Maintenance 372 days Sun 9/13/15 Mon 9/19/16 11 Soil Vapor Extraction System Installatio 14 days Sun 9/13/15 Sun 9/27/15 12 SVE System Operation 365 days Sun 9/20/15 Mon 9/19/16 13 Task 4 Air Sparge System Installation and

Maintenance 372 days Sun 9/13/15 Mon 9/19/16

14 Air Sparge System Installation 7 days Sun 9/13/15 Sun 9/20/15 15 Air Sparge System Operation 365 days Sun 9/20/15 Mon 9/19/16 16 Task 5 Groundwater Monitoring 455 days Sun 9/20/15 Sun 12/18/16 17 1st Quarter Groundwater Monitoring 90 days Sun 9/20/15 Sat 12/19/15 18 2nd Quarter Groundwater Monitoring 90 days Sat 12/19/15 Fri 3/18/16 19 3rd Quarter Groundwater Monitoring 90 days Fri 3/18/16 Thu 6/16/16 20 4th Quarter Groundwater Monitoring 90 days Thu 6/16/16 Wed 9/14/16 21 5th Quarter Groundwater Monitoring 90 days Mon 9/19/16 Sun 12/18/16 22 Task 6 Monitoring Well Abandonment 1 day Tue 6/2/15 Wed 6/3/15 23 Monitoring Well Abandonment (to be determined) 1 day Tue 6/2/15 Wed 6/3/15

24 Task 7 Remedial Progress Reporting 639 days Tue 6/2/15 Thu 3/2/17 25 Task 7a Monthly Progress Report 595 days Tue 6/2/15 Tue 1/17/17 26 Month 1 Progress Report 30 days Tue 6/2/15 Thu 7/2/15 27 Month 2 Progress Report 30 days Thu 7/2/15 Sat 8/1/15 28 Month 3 Progress Report 30 days Sat 8/1/15 Mon 8/31/15 29 Month 4 Progress Report 30 days Mon 8/31/15 Wed 9/30/15 30 Month 5 Progress Report 30 days Wed 9/30/15 Fri 10/30/15 31 Month 6 Progress Report 30 days Fri 10/30/15 Sun 11/29/15 32 Month 7 Progress Report 30 days Sun 11/29/15 Tue 12/29/15 33 Month 8 Progress Report 30 days Tue 12/29/15 Thu 1/28/16 34 Month 9 Progress Report 30 days Thu 1/28/16 Sat 2/27/16 35 Month 10 Progress Report 30 days Sat 2/27/16 Mon 3/28/16 36 Month 11 Progress Report 30 days Mon 3/28/16 Wed 4/27/16 37 Month 12 Progress Report 30 days Wed 4/27/16 Fri 5/27/16 38 Month 13 Progress Report 30 days Fri 5/27/16 Sun 6/26/16 39 Month 14 Progress Report 30 days Sun 6/26/16 Tue 7/26/16 40 Month 15 Progress Report 30 days Tue 7/26/16 Thu 8/25/16 41 Month 16 Progress Report 30 days Thu 8/25/16 Sat 9/24/16 42 Month 17 Progress Report 30 days Sat 9/24/16 Mon 10/24/16 43 Month 18 Progress Report 30 days Sun 12/18/16 Tue 1/17/17 44 Task 7b Remedial Progress Report 74 days Sun 12/18/16 Thu 3/2/17 45 Draft Remedial Progress Report 30 days Sun 12/18/16 Tue 1/17/17 46 Draft Remedial Progress Report Revi 30 days Tue 1/17/17 Thu 2/16/17 47 Final Remedial Progress Report 14 days Thu 2/16/17 Thu 3/2/17 48 Task 8 (Optional Monitoring Well

Installation 1 day Tue 6/2/15 Wed 6/3/15

49 Monitoring Well Installation (to be determined)

1 day Tue 6/2/15 Wed 6/3/15

B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B June July August September October November December January February March April

Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration‐only

Manual Summary Rollup

Manual Summary

Start‐only

Finish‐only

Deadline

Progress

Project: Project1 Date: Mon 9/22/14

ID Task Name Duration Start

1 AS‐SVE System Operation 640 days Mon 6/1/15 2 Contract Award/NTP 1 day Mon 6/1/15 3 Task 1 Project Planning 89 days Tue 6/2/15 4 Initial Site Visit 1 day Fri 6/12/15 5 Draft Work Plan 45 days Tue 6/2/15 6 Draft Work Plan Review 30 days Fri 7/17/15 7 Final Work Plan 14 days Sun 8/16/15 8 Task 2 Air Sparge Well Installation 14 days Sun 8/30/15 9 Air Sparge Well Installation 14 days Sun 8/30/15 10 Task 3 SVE System Maintenance 372 days Sun 9/13/15 11 Soil Vapor Extraction System Installatio 14 days Sun 9/13/15 12 SVE System Operation 365 days Sun 9/20/15 13 Task 4 Air Sparge System Installation and

Maintenance 372 days Sun 9/13/15

14 Air Sparge System Installation 7 days Sun 9/13/15 15 Air Sparge System Operation 365 days Sun 9/20/15 16 Task 5 Groundwater Monitoring 455 days Sun 9/20/15 17 1st Quarter Groundwater Monitoring 90 days Sun 9/20/15 18 2nd Quarter Groundwater Monitoring 90 days Sat 12/19/15 19 3rd Quarter Groundwater Monitoring 90 days Fri 3/18/16 20 4th Quarter Groundwater Monitoring 90 days Thu 6/16/16 21 5th Quarter Groundwater Monitoring 90 days Mon 9/19/16 22 Task 6 Monitoring Well Abandonment 1 day Tue 6/2/15 23 Monitoring Well Abandonment (to be determined) 1 day Tue 6/2/15

24 Task 7 Remedial Progress Reporting 639 days Tue 6/2/15 25 Task 7a Monthly Progress Report 595 days Tue 6/2/15 26 Month 1 Progress Report 30 days Tue 6/2/15 27 Month 2 Progress Report 30 days Thu 7/2/15 28 Month 3 Progress Report 30 days Sat 8/1/15 29 Month 4 Progress Report 30 days Mon 8/31/15 30 Month 5 Progress Report 30 days Wed 9/30/15 31 Month 6 Progress Report 30 days Fri 10/30/15 32 Month 7 Progress Report 30 days Sun 11/29/15 33 Month 8 Progress Report 30 days Tue 12/29/15 34 Month 9 Progress Report 30 days Thu 1/28/16 35 Month 10 Progress Report 30 days Sat 2/27/16 36 Month 11 Progress Report 30 days Mon 3/28/16 37 Month 12 Progress Report 30 days Wed 4/27/16 38 Month 13 Progress Report 30 days Fri 5/27/16 39 Month 14 Progress Report 30 days Sun 6/26/16 40 Month 15 Progress Report 30 days Tue 7/26/16 41 Month 16 Progress Report 30 days Thu 8/25/16 42 Month 17 Progress Report 30 days Sat 9/24/16 43 Month 18 Progress Report 30 days Sun 12/18/16 44 Task 7b Remedial Progress Report 74 days Sun 12/18/16 45 Draft Remedial Progress Report 30 days Sun 12/18/16 46 Draft Remedial Progress Report Revi 30 days Tue 1/17/17 47 Final Remedial Progress Report 14 days Thu 2/16/17 48 Task 8 (Optional Monitoring Well

Installation 1 day Tue 6/2/15

49 Monitoring Well Installation (to be determined)

1 day Tue 6/2/15

M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B May June July August September October November December January February March

Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration‐only

Manual Summary Rollup

Manual Summary

Start‐only

Finish‐only

Deadline

Progress

Project: Project1 Date: Mon 9/22/14