A-131 - Skeet Range PAH Remediation.pdf
PDF 750 KB Posted
- Attached to
- Wallops Flight Facility - Restoration of Main Base Electrical Infrastructure Federal contract opportunity
- Solicitation number
- 80GSFC21B0002
About this file
This document contains details regarding the remediation of a skeet range at NASA's Wallops Flight Facility on Wallops Island, Virginia. The skeet range is contaminated with lead, polycyclic aromatic hydrocarbons, and lead shot above regulatory thresholds. The document outlines two alternatives for remediation. Alternative 1 involves excavating and disposing of contaminated soils from seven defined attainment areas totaling approximately 227,000 square feet. Soils would be transported offsite to appropriate disposal facilities, with approximately 70% characterized as hazardous waste. Excavated areas would be backfilled and restored. Alternative 2 presents the same approach but with excavation to a depth of one foot below ground surface to fully address risks.
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Text version
Coordinate System: North American Datum, 1983 VA South, Meters
FIGURE 2-2
SOIL ATTAINMENT AREAS
SKEET RANGE MRS
NASA WALLOPS FLIGHT FACILITY
WALLOPS ISLAND, VIRGINIA
R unw ay 17-35
Legend Palustrine Forested Wetland (2018)
Fenceline
Exceeds 100 Lead Shot/Square Foot
PAH Risk >1x10-4
Average Lead in Soil>200 mg/kg (0-6" and 6-12")
Lead in Soil and Lead Shot Overlap
Delineated Wetland Sediment (2018)
Skeet Range MRS
0 200 400100 Feet
Aerial Imagery 2013 ESRI map service USA Topo Map 2013 ESRI map service
3/17/2021
N O
R
G :\G
IS
fil e s\ N
A S
A W
I\M X
D \M
B F
R \S ke e tR a n g e \M
B F
R
S u m m a ry
.m xd M
M C
Culvert
L 2
L 1
LS 1
LS 2
LS 3
PAH 1
PAH 3
PAH 2
Overlap:
7,800 sqft
Overlap:
59,400 sqft
Wetland Sediment
Notes:
Soil Attainment Areas / Target Remediation Zones for the CERCLA COCs:
Lead (soil), PAHs (soil), and Lead Shot.
The selected PRGs are presented in Table 2-1.
PRG exceedances by sample location are shown on Figures 1-3 through 1-6.
NOAA COMMAND AND
DATA ACQUISITION
ANTENNAE FACILITY
Attainment Area Area (sqft.)
L 1 25,600 L 1 Sediment 1,700 L 2 71,000
LS 1 37,000
LS 2 75,700
LS 3 2,800
PAH 1 8,400
PAH 2 780
PAH 3 4,800
L = Lead Contaminated Surface Soil LS = Lead Shot in Soil PAH = PAH Contaminated Surface Soil
Coordinate System: North American Datum, 1983 VA South, Meters
FIGURE 4-1
ALTERNATIVE 2- EXCAVATION AND
OFF-SITE DISPOSAL
SKEET RANGE MRS
NASA WALLOPS FLIGHT FACILITY
WALLOPS ISLAND, VIRGINIA
R unw ay 17-35
Legend Palustrine Forested Wetland (2018)
Fenceline
Areas for Excavation (0-1 Foot)
Skeet Range MRS
0 200 400100 Feet
Aerial Imagery 2013 ESRI map service USA Topo Map 2013 ESRI map service
3/17/2021
N O
R
G :\G
IS
fil e s\ N
A S
A W
I\M X
D \M
B F
R \S ke e tR a n g e \M
B F
R
E xc a va tio n
.m xd
M M
C
Culvert
L 2/LS2
L1/LS 1
LS 3
PAH 1
PAH 3
PAH 2
Notes:
- All excavations will be conducted to 1 foot below ground surface. This depth would address all risk.
- All excavated PAH contaminated soil would be classified as non-hazardous.
- Approximately 70% of excavated lead- and lead shot- contaminated soil would be characterized as hazardous waste. The remaining 30% would be classified as non-hazardous waste.
- Hazardous and non-hazardous wastes would be transported off site to their respective appropriate disposal facilities.
- Excavated areas would be backfilled and restored to orignial physical site conditions to the extent practical.
NOAA COMMAND AND
DATA ACQUISITION
ANTENNAE FACILITY
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