MMRP Update - Smith | Associates

AF Military Munitions Response Program
Integrity-Service-Excellence
Joint Base Charleston – Weapons
MMRP RI and IRA Project Update
14 May 2014
Presentation Agenda
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Introduction
JB CHS-Weapons MMRP Overview
Current Document Schedule
Completed Documents
Fieldwork Progress
Diving Operations Overview
Fieldwork Concerns
Questions/Comments
Integrity-Service-Excellence
2
JB CHS-Weapons MMRP Overview
Integrity-Service-Excellence
3
MRS ID
MRS Name
MRS
Acreage
CSE Phase II
EE/CA and Action Memo
Interim Removal Action
RI Field Activities
RI Report
FS Report
DMT, Public/Tech Support, AR/IR
Proposed Plan/Decision Document
JB CHS-Weapons MMRP Overview
SWMU 20
South Annex Munitions Washout
4
      
SWMU 22
Old South Annex Possible Munitions Disposal Area
3
    
SWMU 25
Old South Annex Munitions Disposal Area:
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Water Range & Unexploded Area (Only)
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Burial Areas 1 and 2 and Parking Lot (Only)
20
    
      
SWMU 79
South Annex Marsh Dumping Area
4.5
      
SWMU 81
Southside EOD Training Area
4
       
SWMU 82
Old M-79 Grenade Range
1
      
Southside Borrow Pit
1
      
9
      
AOC L
AOC N
AOC P
South Annex Potential Munitions Disposal Area
Along Rail Trestle
Northside Small Squad Training Area
31
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Integrity-Service-Excellence
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4
Current Document Schedule
Document
Statement of Basis AOC P (Draft Final)
IRA Abbreviated MRS-Specific Summary Documents2
(SWMUs 20, 25 [Burial Area 1 and 2], 79, 81, 82, AOCs L & N)
Site Specific Final Report (IRA Report)
(SWMUs 20, 25 [Burial Area 1 and 2], 79, 81, 82, AOCs L & N)
1
2
Reviewer
USACE
JB CHS
SCDHEC
Done
Done
May1
April-June
May-June
May-July
August
September
October
Delayed based on AFLOA notice to proceed with Draft Final (April 2014)
MEC investigation results documented and reported for stakeholder review prior to completing RI MC sampling fieldwork
Integrity-Service-Excellence
5
Completed Documents
Document
CSE Phase II Report
EE/CA
RI Work Plan
RI Work Plan Addendum
IRA Work Plan
Diving Operations Plan
(Appendix I of RI and IRA Work Plans)
Integrity-Service-Excellence
6
Fieldwork Progress (SWMU 20)
•
Visual survey and surface
clearance (complete)
•
Subsurface MEC investigation of
target anomalies is underway
(weekends only due to proximity
to SPAWAR facilities)
•
No MEC, MD, or RRD identified
during visual survey/surface
clearance; all debris was nonmunitions-related debris (NMRD)
Surface
Clearance
Integrity-Service-Excellence
7
Fieldwork Progress (SWMU 22)
•
Visual survey and surface clearance
(complete)
•
Subsurface MEC investigation of target
anomalies (complete)
•
No MEC, MD, RRD identified; all debris
was NMRD
•
No finds (23) replaced with alternative
digs. Surface clearance completed
before reacquisition. Other target
anomalies found to be associated with
utilities, guardrail, etc.
Integrity-Service-Excellence
Subsurface
Investigation
8
Fieldwork Progress (SWMU 25) (Unexploded Area)
•
Visual survey and surface clearance
(complete)
•
Digital geophysical mapping
(complete)
•
Subsurface MEC investigation of
target anomalies (complete); 7 no
finds replaced
•
Unsurveyable areas due to unstable
piles of construction debris
•
No MEC, MD, or RRD identified; all
debris was NMRD
Surface
Clearance
Subsurface
Subsurface
Investigation
Investigation
Integrity-Service-Excellence
9
Fieldwork Progress (SWMU 25) (Burial Area 1/Parking Lot)
•
Visual survey and surface clearance
(complete)
•
Subsurface investigation of target
anomalies in Parking Lot and Burial
Area 1 (not yet complete)
•
No MEC, MD, RRD identified to date;
all debris has been NMRD
•
Trying to minimize impact on SDDC
shipping operations
Integrity-Service-Excellence
Subsurface
Investigation
10
Fieldwork Progress (SWMU 25) (Burial Area 2)
•
Visual survey and surface clearance
(complete, except for potential fuze
masses)
•
Subsurface investigation (not yet
complete)
•
Initial Mk I fuze demolition completed
•
Large buried masses of potential fuzes
identified in tidal zone but unable to
remove under current ESP and
conditions (response to be determined)
Surface
Clearance
Integrity-Service-Excellence
11
Fieldwork Progress (SWMU 79)
•
Visual survey and surface clearance
(complete)
•
Subsurface investigation of target anomalies
(complete)
•
No MEC, MD, RRD identified; all debris was
NMRD
•
Evidence of burial/disposal not munitionsrelated (scrap metal, construction debris)
Surface
Clearance
Subsurface
Investigation
Integrity-Service-Excellence
12
Fieldwork Progress (SWMU 81)
•
Visual survey and surface clearance
(ongoing)
•
MD and RRD has been identified
•
Demolition of inert fuzes and training
shapes (5-inch Mk 64, 155mm
projectile, Mk 81, Mk 82, Mk 83,
M117s, and 50-series mine shapes) that
required venting
•
Coordinating with Weapons Safety to
conduct demolition activities while
munitions storage area vacant
Integrity-Service-Excellence
13
Fieldwork Progress (SWMU 82)
•
Visual survey and surface clearance (complete)
•
Subsurface MEC investigation of target
anomalies (complete)
•
MD (40mm practice grenade and indeterminate
frag) and RRD (target vehicle) removed
•
Potential MEC (5-inch projectile) identified
outside MRS boundary, JB CHS EOD removed
Surface Clearance
Subsurface Investigation
Integrity-Service-Excellence
14
Fieldwork Progress (AOC L)
•
Visual survey and surface clearance (complete)
•
Subsurface MEC investigation of target anomalies
(complete)
•
No MEC identified. MD and RRD primarily
removed from a 2.5-3.0 foot pile (5,500lbs. RRD &
1,500lbs. MD)
•
RRD: ammunition containers, crates, cradles, etc.
•
MD: frag, M1A2 practice grenade components,
fuze debris, inert hedgehog rocket debris, etc.
Surface
Clearance
Subsurface
Investigation
Integrity-Service-Excellence
15
Fieldwork Progress (AOC N)
•
Visual survey and surface clearance
(complete)
•
Four MEC items (Mk II
grenades)required demolition. All
other items identified were NMRD
(mostly railroad trestle debris).
•
Subsurface MEC investigation of target
anomalies (not yet complete)
•
Diving activities (not yet complete)
Surface
Clearance
Integrity-Service-Excellence
16
Diving Operations Overview
•
Dive during slack water conditions.
Typically one UXO-qualified diver in
water at a time.
•
Unacceptable-to-move MEC detonated
in place underwater. Acceptable-tomove MEC brought to surface for
onshore demolition within MRS.
•
SWMU 25 (Water Range): Reacquire
100 anomaly locations and investigate
using circle-line search with hand-held
metal detector.
•
AOC N: Investigate and resolve 200+
anomalies in inlet area. Possibly
reacquire anomalies in inland area
(similar to SWMU 25) that could not be
addressed by land-based UXO team;
unlikely to be necessary.
Integrity-Service-Excellence
17
Fieldwork Concerns
1.
Remaining fieldwork:
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2.
3.
SWMU 20: Finish subsurface investigation
SWMU 25 (Parking Lot/Burial Area 1): Finish subsurface investigation
SWMU 25 (Burial Area 2): Subsurface investigation and buried potential
fuze masses
SWMU 25 (Water Range): Diving operations
SWMU 81: Finish surface clearance
AOC N: Finish subsurface investigation plus diving activities
All MRSs: RI sampling
Working with EOTI, JB CHS, USACE, & Coast Guard to schedule diving
activities at SWMU 25 (Water Range) & AOC N.
SWMU 25 (TC Dock Finger Pier):
•
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Will require new or amended planning documents (e.g., Work Plan, ESP,
and Diving Operations Plan)
Likely to be addressed at a later date under a separate contract
Integrity-Service-Excellence
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Questions/Comments?
Integrity-Service-Excellence
19

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