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I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Town Hall Meeting:Drinking Water Alternatives for the Community of Moose Creek, AK
Eielson AFB 1 Dec 2016
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Goal and Purpose
Goal: The Air Force goal is to protect human health and ensure mission
activities do not impact the installation and the supportingcommunities' access to safe drinking water.
We are committed to being transparent and maintaining opendialogue with communities, regulators and other stakeholders.
Purpose: Present potential alternatives for a long-term drinking water
source for the community of Moose Creek
Seek feedback on alternatives so we can understand your concerns
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Agenda
Introductions
Update on Air Force response actions
Alternatives for long-term drinking water supply for the Community of Moose Creek
Timeline and future opportunities for public participation
Questions?
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AF Response Status
169 properties exceed EPA’s lifetime health advisory for PFOS/PFOA
As of 1 Nov 2016, the AF has installed and is operating:
90 Water Tanks with delivery service
67 Granular Activated Carbon (GAC) Treatment Systems
9 properties are awaiting system installations (4 w/agreements)
Moose Creek Apartments expected to be complete by Fall 2017
Coming Soon
System satisfaction surveys (Jan 2017)
System operation agreement renewals (Jan 2017)
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Engineering Study
Objectives Evaluate the feasibility of long-term water supply alternatives Prevent ingestion of PFOS/PFOA-contaminated water that
exceeds EPA’s lifetime health advisory of 0.07 ug/L
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Moose Creek Study Area
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Moose Creek Study Area
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Long-Term Options
EPA guidance recommends considering the following general categories: Status Quo (baseline) Connection with an existing municipal or private supply Develop new uncontaminated water resources Removal of contaminants via treatment
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Status Quo
The “Status Quo” response consists of keeping the currently installed systems at each property
Air Force is responsible for long-term O&M, system monitoring and water delivery
The “Status Quo” alternative is included as a baseline for evaluation of other alternatives
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Connection to Existing Supply
“Municipal” drinking water supplies available near Moose Creek Alternative 1 – Water main extension from North Pole Alternative 2 – Water main extension from Eielson AFB
Private drinking water sources near Moose Creek Alternative 3 – Individual water tanks with water truck delivery
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Alternative 1 NP Water Main Extension
New main from North Pole to Moose Creek
New local distribution system, one service connection per property
New local reservoir and pump station (location to be identified)
Decommission existing wells
Land Use Controls (LUCs)
Water supply and distribution would become responsibility of North Pole Water and Sewer Utility
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Alternative 1 NP Water Main Extension
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Alternatives 1,2,5Local Distribution Concept
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Alternative 2 EAFB Water Main Extension
New water main from Eielson AFB to Moose Creek
New local distribution system, one service connection per property
New local reservoir and pump station (location to be identified)
Decommission existing wells
Land Use Controls (LUCs)
Water supply would be responsibility of the Air Force
Distribution system may be operated by private company
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Alternative 2EAFB Water Main Extension
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Alternatives 1,2,5Local Distribution Concept
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Alternative 3 Individual Water Tanks
This option has been implemented at a majority of properties in Moose Creek
Consists of replacing all GAC systems currently in place with tanks
Delivery service by water truck
Decommission existing wells
Land Use Controls (LUCs)
Water supply would be responsibility of the Air Force
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Develop Uncontaminated Supply Category
Groundwater currently serviced by wells <100 ft deep
Testing has shown water at >200 ft is uncontaminated
Alternatives under this category:
Alternative 4 – New Individual Deep Well per property
Alternative 5 – New Deep Well to serve Community
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Alternative 4 Individual Deep Wells
Install a new well, approximately 200 feet deep, at each property
Decommission existing wells
Implement Land Use Controls (LUCs)
Property owners operate new wells
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Alternative 5Develop New Community Well
New well and water treatment facility built at Moose Creek
New local reservoir and pump station (location to be identified)
New local distribution system, one service connection per property
Decommission existing wells
Implement Land Use Controls (LUCs)
Water supply and distribution system may be operated by private company or City of North Pole
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Alternative 5Develop New Community Well
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Alternatives 1,2,5Local Distribution Concept
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Removal of Contaminants via Treatment Category
Treatment technologies to remove PFOS and PFOA have been investigated Granular activated carbon has proven to be a very effective
technology to treat domestic water Reverse osmosis has been shown to be effective in studies
Alternatives under this category:
Alternative 6 – Individual GAC treatment
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Alternative 6 Individual GAC Treatment
This option has been implemented at some properties in Moose Creek
Replace water tanks already installed with individual GAC treatment systems
Decommission existing wells
Implement Land Use Controls (LUCs)
AF responsible for long-term O&M and system monitoring
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Alternative Summary
Status Quo – Keep Existing GAC Systems and Tanks
Alternative 1 – NP Water Main Extension
Alternative 2 – EAFB Water Main Extension
Alternative 3 – Individual Water Tanks with Delivery
Alternative 4 – Individual Deep Wells
Alternative 5 – Develop New Community Well
Alternative 6 – Individual GAC Treatment
I n t e g r i t y - S e r v i c e - E x c e l l e n c e
Timeline and Public Participation
Study (Interim Feasibility Study or IFS) is being conducted under CERCLA Will be followed by an Interim Proposed Plan (IPP) and Interim
Record of Decision (IROD) Draft IFS – Jan/Feb 2017 Draft IPP – Aug 2017 Draft IROD – Mar 2018
Public Participation Opportunities Additional Public Meeting at the IPP phase 30-day Public Comment periods on Draft IFS, Draft IPP, Draft
IROD
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More Information
Eielson AFB Environmental Sitehttp://www.eielson.af.mil/info/environmental.aspx
MC Information Repository Sitehttp://alaskacollection.library.uaf.edu/eafbsc/cd0/Moose%20Creek%
20PFCs%20Contamination%20Information%20Repository/
Air Force Civil Engineer Centerhttp://www.afcec.af.mil/Home/Environment/Perfluorinated-
Compounds/
Environmental Protection Agencywww.epa.gov/
Agency for Toxic Substances and Disease Registrywww.atsdr.cdc.gov/
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Questions?
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