Site Number: |
01C8 |
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Contract Number: |
EP-W-08-062 |
D.O. Number: |
0049 |
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Action Memo Date: |
11/5/2017 |
Response Authority: |
CERCLA |
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Response Type: |
Time-Critical |
Response Lead: |
EPA |
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Incident Category: |
Removal Action |
NPL Status: |
NPL |
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Operable Unit: |
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Mobilization Date: |
11/19/2015 |
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Start Date: |
11/19/2015 |
Demob Date: |
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Completion Date: |
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CERCLIS ID: |
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RCRIS ID: |
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ERNS No.: |
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State Notification: |
CT DEEP has been notified |
FPN#: |
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Reimbursable Account #: |
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1.1.1 Incident Category
Time-Critical Removal
1.1.2 Site Description
1.1.2.1 Location
The
Precision Plating Corp. Superfund Site is located at the Hillside Industrial
Park at 1050 Hartford Turnpike (Route 30), and includes an impacted aquifer in the Town of Vernon, Connecticut. It is surrounded by a mix of light commercial, residential and undeveloped
land. For expediency, the location of
the site will be identified as the Hillside Industrial Park at 1050 Hartford
Turnpike in Vernon, Connecticut. The
approximate geographic center of the site is located at N 41° 51’ 5”, W 72° 29’
24”.
This Removal Action will specifically address residential and commercial properties where analytical
results show concentrations of hexavalent chromium (Cr6) exceeding the Removal Management Level (RML)
in drinking water wells. These properties are all on the
portion of the Precision Plating Corp. Superfund Site located along Hartford
Turnpike. The term “the
Removal Site” will be used to refer specifically to this portion of the
Precision Plating Corp. Superfund Site.
1.1.2.2 Description of Threat
The Precision Plating Corp. Superfund Site is on the National Priorities List. Sampling and analysis of samples from drinking water wells at the site have identified elevated levels of chromium (including Cr6).
1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results
While conducting a Remedial Investigation/Feasibility Study (RI/FS) at the Site, EPA identified five drinking water wells located along Hartford Turnpike, with Cr6 contamination at concentrations above the RML. EPA’s Remedial Program requested that EPA’s Emergency Planning
and Response Branch (EPRB) review and assess the drinking water well analytical
data to determine whether a removal action would be appropriate. Based on that data review, a removal action was deemed appropriate. This decision was documented in a
Closure Memorandum dated August 18, 2015. An Action Memorandum was approved on September 9, 2015. The Action Memorandum authorizes EPA to take action at the Removal Site to provide an alternate water supply for the residences and businesses served by these five wells.
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