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WAUGOSHANCE POINT TARGETFORMERLY USED DEFENSE SITEEMMET COUNTY, MICHIGAN
Virtual Public Meetingfor the No Action Proposed Plan
Thursday, August 27, 20206 p.m. EDT
8/27/2020
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AGENDA Welcome and Introductions Participation Instructions Virtual Meeting Helpful Hints Your Opinion Counts Formerly Used Defense Sites Program Overview Site Location and History Project History Remedial Investigation Findings and Conclusions Proposed Plan Purpose Recommendations Questions and Answers
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WELCOME AND INTRODUCTIONSUnited States Army Corps of Engineers• Nick Stolte, Contracting Officer Representative• Kari Meier, Project Manager• Shatara Riis, Public Affairs Specialist• Matthew George, Assistant District Counsel• Kelly Enriquez, Project Geophysicist• Whitney Bell, Technical Manager• Corey Knox, Technical Manager
Michigan Department of Natural Resources• Burr Mitchell, Wilderness State Park Unit Supervisor
Michigan Environment, Great Lakes, and Energy • Bill Harmon, Remediation and Redevelopment Division• Beth Place, Remediation and Redevelopment Division
USACE Contractor – PIKA-Pirnie (Arcadis) JV• Susan Burtnett, Project Manager
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PARTICIPATION INSTRUCTIONS Virtual Public Meeting
• USACE will share a presentation to discuss the investigation findings and Proposed Plan for the former Waugoshance Point Target
• Phones will be muted during the presentation• Participants are encouraged to provide questions and comments using the chat feature • USACE will answer both chat and verbal questions and respond to comments at the end of the
presentation Connection Trouble
• If you are experiencing connection issues, please call +1-888-557-8511 and enter code 143 696 8 to hear the meeting
• The presentation materials can be viewed online a: https://www.lrl.usace.army.mil/Missions/Environmental/Waugoshance-Point-Target/
Documentation• The meeting will be recorded• A transcript of the meeting will be provided in the Decision Document Public Introductions
• Public participants are encouraged to introduce themselves to provide a record of public attendance• Please state and spell your name• Document attendance using the chat feature or email [email protected]
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HELPFUL HINTS
Chat
Participants
Raise your hand
Raise your hand
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YOUR OPINION COUNTS Comment by 5 p.m., Sept. 28, 2020 Speak-up tonight or call (502) 315-6769 Email: [email protected] Submit comments tonight or mail to:
U.S. Army Corps of EngineersAttention: Shatara Riis600 Dr. Martin Luther King, Jr. Place Louisville, Kentucky 40202
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PROGRAM OVERVIEW Formerly Used Defense Sites
• Real property that was under the jurisdiction of the Secretary of Army
• Previously owned, leased, or otherwise possessed by the United States
• Transferred from Department of Defense control prior to Oct. 17, 1986
Program Goal• Reduce risk to human health and the environment,
when needed, through effective, legally compliant, and cost-effective actions for activities attributable to the Department of Defense
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WAUGOSHANCE POINT TARGET LOCATION
Located on Lake Michigan in the westernmost part of Wilderness State Park
Munitions response site includes both land and water areas totaling ~ 1,947 acres
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SITE HISTORY
Used by the Navy for training for less than two years (1944 and 1945)
Limited equipment testing and scheduled practice bombing
Limited machine gun firing practice from low-flying aircraft at ground targets
Testing remote controlled bombs Associated practice munitions included
radio-guided bombs and glider bombs, and small arms ammunition
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SITE HISTORY AND CURRENT USE
Navy controlled the property until it was transferred to the Department of the Interior in 1956
Currently, most of the site is part of Wilderness State Park and provides habitat for threatened and endangered species
The site also includes the water surrounding the Waugoshance Point Lighthouse
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PROJECT HISTORY - PREVIOUS STUDIES AND FINDINGS
2004-2005 Site Visit• Two practice bombs and a torpedo found
underwater near the Waugoshance Lighthouse• Confirmed to be sand-filled
2010 Inventory Project Report 2013 Preliminary Assessment / Site
Inspection• Practice bomb casings found along west side of
Waugoshance Island• No live or intact munitions observed• No small arms ammunition observed
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CERCLA* PROCESS*Comprehensive Environmental Response, Compensation, and Liability Act
Depending on the Remedial Investigation findings, a Feasibility Study may be needed For Waugoshance Point Target, the findings indicate no unacceptable risk to human
health or the environment from munitions or munitions constituents Since there is no unacceptable risk, no action is needed, and a Feasibility Study was not
conducted The Proposed Plan recommends No Action
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REMEDIAL INVESTIGATION Identify the types and extent of munitions and/or
munitions constituents that may remain at the site from the military’s past use
Evaluate potential risks to human health and the environment
Based on findings, determine whether any future actions needed
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REMEDIAL INVESTIGATION (CONTINUED)
Work coordinated with Michigan Department of Natural Resources and Wilderness State Park
Due to the sensitive habitat, no vegetation clearing took place
Included land and water work• Data were collected for water areas in
2017• Water and land investigations were
completed in 2018
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REMEDIAL INVESTIGATION (CONTINUED)
Used digital geophysical mapping and analog surveys to determine where and how many munitions may remain• Linear path (transect) surveys in water and land areas• 2,500 and 10,000 square foot area (grid) surveys on land
Investigated buried metallic objects (anomalies) by digging to determine if they were munitions
Boat-mounted equipment used for data collection in
Area 4
Shallow water transect survey in Area 4
Grid survey in Area 1
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INVESTIGATION FINDINGS Most items found were not related to munitions (e.g.,
nails, cans/can lids, wire, and scrap metal pieces) No munitions debris was found in Area 1, Area 4, or
the Fuselage Area A limited number of expended small arms ammunition
was found in Area 1 and Area 4
Munitions debris from MK 15 Mod 02 100-lb sand-filled practice bombs
found on land in Area 2
Munitions debris from a MK23 3-lb practice bomb found in the water at
Area 3
Munitions debris from a MK43 4.5-lb practice bomb found in
the water at Area 3
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MUNITIONS FINDINGSLand MK15 Mod 02 100-lb sand-filled practice bomb pieces
• MK 15 Mod 02 practice bomb does not include a spotting charge• As such, it does not posses an explosive hazard and is not MEC
Items were only found at Area 2 at depths ranging from the surface to 28 inches below the ground surface
Water Two – AN MK23 practice bombs and one – AN MK43 practice
bomb (also referred to as miniature practice bombs)• No signal cartridges were present• Miniature practice bombs were configured for signal cartridges (which
are like a shot gun shell) Items were only found at Areas 2 and 3 at depths ranging from 0 to
less than 1 inch below the sediment surface
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MUNITIONS FINDINGS (CONTINUED)
Vertical distribution of munition debris
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MUNITIONS RISK ASSESSMENT
Assessment conducted to evaluate risk associated with potential exposure to miniature practice bombs with signal cartridges
Used a qualitative approach to evaluate:• Type and quantity of munitions potentially
presenting a risk based on current and future use• Expected access conditions and potential for
exposure to determine if the risk is acceptable or unacceptable.
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INVESTIGATION CONCLUSIONS
Investigation findings were consistent with documented historical use
A limited number of practice munitions were found• one 500-lb and one 750-lb practice bomb, and a
practice torpedo warhead in water• several 100-lb practice bomb casings on land• three miniature practice bombs in water
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INVESTIGATION CONCLUSIONS (CONTINUED)
100-lb, 500-lb, and 750-lb bombs and the torpedo were sand-filled practice munitions that pose no explosive hazard
There is a low risk of encountering miniature practice bombs given their location in the water
No sampling was needed since no source of potential munitions contamination was identified
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PROPOSED PLAN PURPOSE
Highlights factors leading to recommendation Presents recommendation – No Action Encourages public participation
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PROPOSED PLAN RECOMMENDATIONS Based on the Remedial Investigation and
previous study findings No unacceptable risk to human health or the
environment from munitions or munitions constituents
No Action is needed Public comment period Aug. 27, 2020 through
Sept. 28, 2020
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FOR MORE INFORMATION Visit the Mackinaw Area Public Library:
528 West Central Avenue, Mackinaw CityTelephone: (231) 436-5451
Visit the Corps website:https://www.lrl.usace.army.mil/Missions/Environmental/Waugoshance-Point-Target/
Contact the Corps:Shatara RiisTelephone: (502) 315-6769Email: [email protected]
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QUESTIONS AND COMMENTS• Enter your question in the chat• Raise your hand (in the virtual meeting platform) and
wait for the moderator to unmute• Wait for the moderator to unmute those calling in• Please state your name and then your question• Please be considerate of others waiting to speak
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POINTS OF CONTACTUnited States Army Corps of Engineers• Nick Stolte (502) 315-6321• Kari Meier (256) 895-1219• Shatara Riis (502) 315-6769
Michigan Department of Natural Resources• Burr Mitchell (231) 436-5040
Michigan Environment, Great Lakes, and Energy • Bill Harmon (517) 284-5110• Beth Place (517) 284-5139
USACE Contractor – PIKA-Pirnie (Arcadis) JV• Susan Burtnett (813) 857-0021
