Figure 5 - Previous Soil and Porewater Sample Locations and Exceedances.pdf

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Attached to
RFP 250000002 - Data Gap Analysis for Savoonga FSA
Solicitation number
RFP 250000002 - Data Gap Analysis for Savoonga FSA
Issued by
Nome Census Area, Alaska

About this file

Written by GovTribe AI ·

This document is a figure showing previous soil and porewater sample locations and exceedances related to a Remedial Action Report for the National Guard Federal Scout Armory in Savoonga, Alaska. The figure depicts the locations of monitoring wells, soil and porewater sampling points, and the presence of contaminants such as diesel-range organics, benzene, toluene, ethylbenzene, and xylenes that have exceeded state cleanup levels. The map also shows the locations of various former and current site features including aboveground storage tanks, buildings, and a gravel pad.

The related state and local contract opportunity is a Request for Proposals (RFP) issued by the Alaska Department of Military and Veterans Affairs (DMVA), Alaska Army National Guard, Environmental, seeking qualified offerors to provide a Data Gap Analysis for the Savoonga Federal Scout Armory. The deadline for receipt of proposals is 2:00 pm Alaska Standard Time on August 22, 2024. The RFP provides contact information for the DMVA/DAS Procurement Office, where interested parties can obtain additional information and submit questions about the solicitation.

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Other files

File Type Posted
Figure 6 - 2022 Remedial Action Analytical Results.pdf PDF
RFP 250000002 - Data Gap Analysis for Savoonga FSA.pdf PDF
Amendment 1 to RFP 250000002.pdf PDF
Final_AKARNG SAV RA Report.pdf PDF
Savoonga Final WP_QAPP.pdf PDF
Amendment 2 to RFP 250000002.pdf PDF
Figure 4 - Savoonga Conceptual Hydrology Model.pdf PDF
Amendment 1 to RFP 250000002.pdf PDF
Figure 6 - 2022 Remedial Action Analytical Results.pdf PDF
RFP 250000002 - Data Gap Analysis for Savoonga FSA.pdf PDF
Figure 4 - Savoonga Conceptual Hydrology Model.pdf PDF
Figure 5 - Previous Soil and Porewater Sample Locations and Exceedances.pdf PDF
Final_AKARNG SAV RA Report.pdf PDF
RFP 250000002 - Data Gap Analysis for Savoonga FSA.pdf PDF
Figure 6 - 2022 Remedial Action Analytical Results.pdf PDF
Figure 4 - Savoonga Conceptual Hydrology Model.pdf PDF
Figure 5 - Previous Soil and Porewater Sample Locations and Exceedances.pdf PDF
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?MW-04

MW-03

MW-02

MW-01

MW-05

A!

A!

SAV-ACL-016

11SAVSB007

A! SAV-ACL-015

Former 3,000-gallon AST Removed in 1993

1,500-gallon AST

1,500-gallon AST

Former 3,000-gallon AST Removed in 2002

1,500-gallon

AST

Former Hazardous

Material Storage Locker

Day Tank

Day Tank

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11SAVSB004

11SAVSB009

11SAVSB010

11SAVSB012

11SAVSB013

11SAVGW001

11SAVGW002

11SAVSB011

11SAVSB008

11SAVSB006

11SAVSB005

11SAVSB003

B-04

B-05

B-06

B-07

B-14

B-15

B-17

B-18

SAV-ACL-009

SAV-ACL-010

SAV-ACL-011

SAV-ACL-012

09SAV-01-D115

09SAV-01-E105

09SAV-01-E115

09SAV-01-F090

09SAV-01-F110

09SAV-01-G090

09SAV-01-G100

09SAV-01-G105

09SAV-01-G115

09SAV-01-H100

09SAV-01-H105

09SAV-02-G110

09SAV-02-G115

09SAV-02-H100

09SAV-02-H105

09SAV-02-H120

09SAV-02-I105

09SAV-02-I130

09SAV-02-J105

09SAV-02-K105

09SAV-02-K120

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B-02

B-03

B-08

B-09

B-11

B-12

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SAV-ACL-002

SAV-ACL-003

SAV-ACL-004

SAV-ACL-005

SAV-ACL-006

SAV-ACL-007

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SV021

SV031

SV041

SV051

SAV-ACL-008B-13

B-10

B-16

New Federal Scout Armory

Old Federal Scout Armory

Walkway

Former Shed

Former Storage Van

Ramp

6/30/2023

DATE: FIGURE:

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PROJECT No.:

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LEGEND:

Presumed Groundwater Flow Direction

Day Tank

Old FSRC

Federal Scout Readiness Center (FSRC)

Former AST

Former Structures

Gravel Pad

Unpaved Road

Former Drum Location%

Other Building

Tank Piping

VERTICAL DATUM: NAVD88

ALASKA STATE PLANE ZONE 9

HORIZONTAL DATUM: NAD83 (2011)

Monitoring Well Locations Installed/Sampled in 2016

One or more result greater than Table C cleanup level?

All results less than Table C cleanup levels?

Chemistry Notes:

1. J = estimated; the value is greater than or equal to the MDL and less than the LOQ, or the quantitation is an estimation due to discrepancies in meeting certain analyte-specific QC criteria

2. (+) = indicates that the result is potentially biased high

3. (–) = indicates that the result is potentially biased low

Abbreviations:

aboveground storage tank below ground surface diesel-range organics milligrams per kilogram milligrams per Liter residual range organics

AST

bgs

DRO

mg/kg mg/L

RRO

Analyte Alternative Cleanup Level (mg/kg)

DRO 3000

Benzene 0.13 Toluene 47 Ethylbenzene 1.2 Xylenes 13 Naphthalene 0.43 1-Methylnaphthalene 4.9 2-Methylnaphthalene 15

Soil

MW-03 9/6/2016 Units DRO 2.9 mg/L

MW-02 9/5/2016 Units DRO 1.5 J- mg/L Toluene 1.8 J+ mg/L

11SAVSB004 7/24/2011 Units DRO 18 J mg/L

SAV-ACL-016 8/25/2004 Units DRO 4.07 mg/L

MW-04 7/4/2016 Units DRO 2.9 J- mg/L RRO 1.1 J- mg/L Toluene 1.2 J- mg/L

References:

1. Map produced using ESRI ArcMap v. 10.7.1.

2. Base imagery from ESRI (WV02, 50cm, 7/11/2014).

A!

Analyte Table C Cleanup Level (mg/L)

DRO 1.5

RRO 1.1

Benzene 0.0046 Toluene 1.1 Ethylbenzene 0.015 Xylenes 0.19

Porewater

AST

Soil concentrations exceeding ADEC-approved Alternative Cleanup Levels

Soil Sample Location DRO < 250 mg/kg!

DRO ≥ 250 mg/kg, but < 3,000 mg/kg!

DRO ≥ 3,000 mg/kg!

DRO, BTEX, naphthalene, 1-methylnaphthalene, and 2-methylnaphthalene exceed alternative cleanup levels!!

SAV-B-12 9/2/1998 Units Depth (feet bgs) DRO 11,000 mg/kg 0.5-1

SAV-B-13 9/2/1998 Units Depth (feet bgs) DRO 17,000 mg/kg 0-0.5

SAV-ACL-015 8/25/2004 Units DRO 30.2 mg/L Benzene 0.0805 mg/L Ethy lbenzene 0.166 mg/L Xylenes 0.581 mg/L

11SAVSB001 7/6/2011 Units Depth (feet bgs)

DRO 4,300

Benzene 0.27 J Ethylbenzene 11 J Xylenes 50 J Naphthalene 24 1-Methylnaphthalene 30 2-Methylnaphthalene 47

DRO 17,000

Benzene 3 Toluene 160 Ethylbenzene 48 Xylenes 250 Naphthalene 180 1-Methylnaphthalene 230 2-Methylnaphthalene 360 mg/kg mg/kg

1-2

2-2.6

Porewater Sample Location

One or more result greater than Table C cleanup levelA!

All results less than Table C cleanup levelsA!

Property Line

1. Location of historical samples are approximate based on historical figures and on orthophotography courtesy of Alaska Department of Commerce, Division of Community & Regional Affairs (DCRA), 1-foot pixels.

2. All wells established prior to 2016 have been abandoned/removed.

3. Only porewater sample results with Table C exceedances are shown on figure.

4. Property boundary displayed is approximate.

Notes:

NATIONAL GUARD FEDERAL

SCOUT ARMORY

REMEDIAL ACTION REPORT

PREVIOUS SOIL AND POREWATER

SAMPLE LOCATIONS AND

EXCEEDANCES

SAVOONGA, ALASKA

_J

J

D D I. - -

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