Figure 6 - 2022 Remedial Action Analytical Results.pdf
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- Solicitation number
- RFP 250000002 - Data Gap Analysis for Savoonga FSA
- Issued by
- Nome Census Area, Alaska
About this file
This document appears to be a 2022 Remedial Action Analytical Results report related to a National Guard Federal Scout Armory remediation project in Savoonga, Alaska. The report includes soil sample data and analysis at various locations around the property, including diesel range organics (DRO), benzene, ethylbenzene, xylenes, methylnaphthalenes, and naphthalene concentrations. The results are compared against project action levels (PALs) approved by the Alaska Department of Environmental Conservation (ADEC). The report provides details on soil and groundwater monitoring well sample locations, depths, and analytical results for these contaminants of concern. It also includes a site map depicting the sample locations. This remedial action appears to be an ongoing effort to address environmental impacts at this federal property.
The report does not contain information on pricing, set-asides, incumbents, funding sources, or other contractual details. It focuses solely on presenting the 2022 analytical results from the remedial action activities at this site.
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1,500-gallon
AST
1,500-gallon
AST
Old Federal Scout Armory
New Federal Scout Armory
Walkway
Ramp
Ramp
1,500-gallon
AST
22SAV-B01-3
22SAV-B02-3
22SAV-B03-3
22SAV-SW01-1.5
22SAV-SW02-2.5
22SAV-SW03-2
22SAV-SW04-2
WP-01
WP-02
WP-03
WP-04
WP-05
TP-02
TP-04
TP-05
TP-06
TP-01
6/30/2023
DATE: FIGURE:
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PROJECT No.:
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VERTICAL DATUM: NAVD88
ALASKA STATE PLANE ZONE 9
HORIZONTAL DATUM: NAD83 (2011)
1. Property boundary displayed is approximate.
Notes:
NATIONAL GUARD FEDERAL
SCOUT ARMORY
REMEDIAL ACTION REPORT
2022 REMEDIAL ACTION
ANALYTICAL RESULTS
SAVOONGA, ALASKA
22SAV-B01-3 7/19/2022 Units Depth (feet bgs) DRO 20,900 mg/kg 3 Benzene 2.08 mg/kg 3 Ethylbenzene 13.7 mg/kg 3 Xylenes (total) 63.3 mg/kg 3 1-Methylnaphthalene 51.2 mg/kg 3 2-Methylnaphthalene 73.9 mg/kg 3 Naphthalene 47.1 mg/kg 3
22SAV-B02-3 7/19/2022 Units Depth (feet bgs) Benzene 0.138 mg/kg 3 Ethylbenzene 2.22 mg/kg 3 1-Methylnaphthalene 5.02 mg/kg 3 Naphthalene 4.77 mg/kg 3
22SAV-B03-3 7/19/2022 Units Depth (feet bgs) Ethylbenzene 1.83 mg/kg 3 1-Methylnaphthalene 8.48 mg/kg 3 Naphthalene 9.54 mg/kg 3
22SAV-SW-1 7/19/2022 Units Depth (feet bgs) DRO 12,500 mg/kg 1.5 Benzene ND [0.199] U mg/kg 1.5 Ethylbenzene 1.79 mg/kg 1.5 1-Methylnaphthalene 38.7 mg/kg 1.5 2-Methylnaphthalene 51.9 mg/kg 1.5 Naphthalene 30.9 mg/kg 1.5
22SAV-SW-2 7/19/2022 Units Depth (feet bgs) DRO 4030 mg/kg 2.5 1-Methylnaphthalene 9.72 mg/kg 2.5 Naphthalene 5.19 mg/kg 2.5
Analyte Project Action Level (mg/kg)
DRO 3,000
Benzene 0.13 Ethylbenzene 1.2 Toluene 47 Xylenes (total) 13 1-Methylnapthalene 4.9 2-Methylnaphthalene 15 Naphthalene 0.43
Soil
Abbreviations:
detection limit diesel range organics limit of detection milligrams per kilogram milligrams per liter not detected project action level record of decision residual range organics result is below detectable limits
DL
DRO
LOD
mg/kg mg/L
ND
PAL
ROD
RRO
U
Chemistry Notes:
1. Only contaminant concentrations that exceed the PAL, or the LOD for a ND result exceeds the PAL, are presented. For full results, refer to Tables 4 and 5.
2. ACLs are defined by the Soil Contaminants of Concern and Cleanup Goals, as approved by ADEC on 30 July 2020 (ROD). PALs are defined by the ACL or the most conservative of the ADEC 18 AAC 75 Method Two Tables B1 and B2 Soil Cleanup Levels for the Under 40-Inch Zone Human Health and Migration to Groundwater (2021) when there is no ACL in place.
3. The higher result of the primary and field duplicate sample pair is presented, when applicable.
4. LOD shown in brackets [ ].
References:
1. Map produced using ESRI ArcMap v. 10.7.1.
2. Imagery source: Brice Engineering, LLC, 07/19/2022.
LEGEND:
Soil Sample Location
WP-01 7/17/2022 Units DRO 5.59 mg/L RRO 1.63 mg/L Benzene 0.016 mg/L
WP-05 7/17/2022 Units RRO 1.27 QN mg/L
Analyte Project Act ion Level (mg/L)
DRO 1.5
RRO 1.1
Benzene 0.0046
W at er
Monitoring Well Locations Visited/Sampled in 2022
Sample Result(s) ≥ Project Action Level!
Not Sampled - Dry Well?
Sample Result(s) > Project Action Level?
Sample Result(s) < Project Action Level!
Excavation Boundary
Property Line
Test Pit"J
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