U.S. ENVIRONMENTAL PROTECTION AGENCY
POLLUTION/SITUATION REPORT
Ravenswood PCE - RESTART - Removal Polrep
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Region III
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Subject:
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POLREP #7
Completion of Removal Action
Ravenswood PCE - RESTART
C368
Ravenswood, WV
Latitude: 38.9516600 Longitude: -81.7616600
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To:
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Francis Burns, US EPA R3
Gerald Heston, US EPA R3
Response Center RRC, EPA
Anthony Iacobone, EPA
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From:
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Michael Towle, On-Scene Coordinator
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Date:
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8/6/2015
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Reporting Period:
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4/25/15 through 8/6/15
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1. Introduction
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1.1 Background
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Site Number: |
C368 |
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Contract Number: |
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D.O. Number: |
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Action Memo Date: |
3/19/2015 |
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Response Authority: |
CERCLA |
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Response Type: |
Time-Critical |
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Response Lead: |
EPA |
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Incident Category: |
Removal Action |
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NPL Status: |
NPL |
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Operable Unit: |
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Mobilization Date: |
4/13/2015 |
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Start Date: |
4/2/2015 |
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Demob Date: |
7/24/2015 |
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Completion Date: |
7/24/2015 |
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CERCLIS ID: |
WVSFN0305428 |
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RCRIS ID: |
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ERNS No.: |
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State Notification: |
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FPN#: |
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Reimbursable Account #: |
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1.1.1 Incident Category
This Site is a restart of a Removal Action at an NPL Site after a change in the scope of the Removal Action.
1.1.2 Site Description
The Site includes an area of PCE-contaminated ground water affecting public water supply wells. After investigation activity by EPA Remedial Program, an area of highly contaminated soil and nearby contamination of indoor air is posing threats not anticipated in the selection of the remedy (ROD) for the Site issued in 2011. The EPA Removal Program has found the Site conditions to pose a threat warranting time-critical removal actions and has changed the scope, increased the ceiling, and approved exemptions from the statutory limits in order to restart removal actions completed by EPA in 2008.
1.1.2.1 Location
The Ravenswood PCE Site is an area of contaminated ground water underlying the City of Ravenswood, Jackson County, West Virginia. The source area which is the subject of the present Removal Action is located near the intersection of Walnut Street and Washington behind buildings once housing a dry cleaning establishment.
1.1.2.2 Description of Threat
The source area of contaminated soil is releasing PCE into the ground water which migrates to a public water supply. Although EPA is constructing a soil vapor extraction system to address the overall site threats under the Remedial Program (NPL), the magnitude of the contamination was not anticipated to require excavation activities. Additionally, a nearby intrusion of PCE vapor into a structure posing unacceptable risk to inhabitants was not anticipated. The Removal Action is limited to address a small area of highly contaminated soil and a nearby intrusion of vapor.
1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results
The Site has been the subject of numerous investigatory activities. In 2012, an area of highly contaminated soil was identified in the subject source area as part of an investigation to support a Remedial Design. Additionally, an intrusion of PCE-contaminated vapor was identified nearby. The OSC relied upon a review of information generated by the EPA Remedial Program - specifically the 2012 Pre-Remedial Design Investigation and evaluation by a toxicologist of indoor air information - to complete a Removal Site Evaluation. The indoor air scenario results in a Hazard Quotient of 6.3. The Removal Site Evaluation was initiated February 20, 2015 and concluded March 19, 2015 with recommendation for removal action and approval of same. The Action Memorandum, signed March 19, 2015 contains a summary of analytical information collected at the Site beginning in 1989 and which was relied upon to demonstrate that the area of contaminated soil which is the subject of the Removal Action is likely a significant source of contamination to the wells. A Removal Action is needed to reduce the migration and mobility of the PCE and enhance the effectiveness of the selected Remedial Action.
After finding that the interior space containing elevated PCE concentrations was not currently occupied by a residential use scenario, the OSC, in consultation with R3 toxicologist, determined that installation of temporary measures to reduce interior VOC concentrations in advance of the pending Remedial Action was not necessary.
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2. Current Activities
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2.1 Operations Section
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2.1.1 Narrative
See prior POLREPs for information up thru 4/24/15 when the Site was temporarily demobilized pending completion of certain actions by the EPA Remedial Program relating to the installation of the ground water treatment system.
2.1.2 Response Actions to Date
The EPA Remedial contractor mobilized to the Site and began installation of sparge wells and vapor extraction wells component to a treatment system to remove VOCs from the ground water. This POLREP will not address all the activities conducted by the Remedial Contractor (HGL) and its subcontractors. While the Remedial Contractor conducted its work, the EPA OSC and the EPA ERRS contractor periodically mobilized to the Site to inspect the conditions and to better plan for the overall completion of the Removal Action. The EPA OSC also authorized the delivery of certain backfill materials to bring the Site back to grade (work conducted by Remedial contractors). These activities allowed the completion of certain removal actions during the demobilization period. Remaining removal action activities necessary to complete the action involved installation of a carbon filter unit in one interior space, replacement of certain drain systems removed/relocated during the removal action (e.g., storm drain leaders), and restoration of properties affected by the removal action.
On June 18, 2015, the OSC in consultation with the Region III toxicologist assigned to the Site decided that a carbon unit to be installed in the one interior space showing elevated VOC levels and which may have once had a potential residential scenario was no longer necessary. The interior space no longer was used for residential style purposes and the potential exposure scenario posing an elevated potential threat was no longer present.
The OSC and ERRS contractor found that the amount of property requiring some level of restoration or repair of damages was increased from the time period when Removal demobilized in April. An additional lot was used for staging. The OSC agreed to include restoration in the Removal scope. A remobilization date of June 17, was established after the OSC understood that the equipment from the Remedial contractor would be demobilized.
The Site was remobilized on June 17. The ERRS contractor arranged for the repair of stairs damaged and removed during the Removal Action. These stairs originally exited the buildings into the excavation area. The drainage system did not need to be repaired as the City re-routed the drainage to a new location. The ERRS contractor repaired the entrance area to the alleyway roadway. This area was damaged by trucks hauling wastes from the Site and hauling backfill into the Site. The ERRS contractor laid stone over the alleyway roadway to its original condition.
The OSC agreed with the property owner whose property was used for staging to cover the ground with topsoil and stone. Additionally, since the subject property was used by EPA removal before the OSC learned that EPA did not have access, the OSC also placed a small number of shrubs on this property. The area was seeded.
All work was completed and the Site was demobilized by the ERRS contractor on July 24, 2015. The OSC inspected the Site on August 6, 2015, and verified that the restoration of the Site in accordance with agreements.
The Removal Action is thus completed on July 24, 2015. A final POLREP will be prepared after all documents and costs are received.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
The Site is a Fund-Lead NPL Site. The OSC is unaware of any PRPs.
2.1.4 Progress Metrics
| Waste Stream |
Medium |
Quantity |
Manifest # |
Treatment |
Disposal |
| PCE |
Soil |
23.45 |
334504 |
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LF |
| PCE |
Soil |
30.49 |
334505 |
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LF |
| PCE |
Soil |
27.87 |
334506 |
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LF |
| PCE |
Soil |
20.61 |
334507 |
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LF |
| PCE |
Soil |
24.69 |
334508 |
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LF |
| PCE |
Soil |
27.80 |
334509 |
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LF |
| PCE |
Soil |
27.45 |
334510 |
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LF |
| PCE |
Soil |
24.42 |
334511 |
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LF |
| PCE |
Soil |
26.01 |
334512 |
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LF |
| PCE |
Soil |
22.22 |
334515 |
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LF |
| PCE |
Soil |
25.90 |
334516 |
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LF |
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2.2 Planning Section
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2.2.1 Anticipated Activities
Await Site documentation and final costs. Prepare final POLREP.
2.2.1.1 Planned Response Activities
None.
2.2.1.2 Next Steps
Prepare Final POLREP.
2.2.2 Issues
None.
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2.3 Logistics Section
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No information available at this time.
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2.4 Finance Section
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2.4.1 Narrative
An Action Memorandum was approved March 19, 2015. The Action restarts a removal action previously started by EPA in 2003 and completed in 2008. As such, the current action is a restart of a Removal Action at the Site.
The original (2003) Project Ceiling for the Ravenswood PCE Site was $1347,800. Of this, an estimated $832,363 was spent by 2008. See POLREP 31 and Final for the Ravenswood PCE Site, dated 9/12/08. The entire budget was not utilized.
The ceiling for the current action is estimated at $224,650 (ERRS - 202,130; START - 22,520). At this date, the costs are not finalized, but estimated to rise above the ceiling before the Removal Action can be completed.
On April 30, 2015, an Action Memo was approved which increased the project ceiling for the current Removal Action. The amount assigned to the current action was increased from $224,650 to $337,130.
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Budgeted |
Total To Date |
Remaining |
% Remaining |
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Extramural Costs
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| ERRS - Cleanup Contractor |
$318,000.00 |
$129,675.00 |
$188,325.00 |
59.22% |
| START |
$10,979.00 |
$9,782.94 |
$1,196.06 |
10.89% |
| UNASSIGNED |
$8,151.00 |
$0.00 |
$8,151.00 |
100.00% |
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Intramural Costs
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| USEPA - Direct |
$18,000.00 |
$4,800.00 |
$13,200.00 |
73.33% |
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| Total Site Costs |
$355,130.00 |
$144,257.94 |
$210,872.06 |
59.38% |
* The above accounting of expenditures is an estimate based on figures known to the OSC at the time this report was written. The OSC does not necessarily receive specific figures on final payments made to any contractor(s). Other financial data which the OSC must rely upon may not be entirely up-to-date. The cost accounting provided in this report does not necessarily represent an exact monetary figure which the government may include in any claim for cost recovery.
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2.5 Other Command Staff
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No information available at this time.
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3. Participating Entities
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No information available at this time.
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4. Personnel On Site
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No information available at this time.
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5. Definition of Terms
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No information available at this time.
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6. Additional sources of information
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No information available at this time.
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7. Situational Reference Materials
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No information available at this time.
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POLREP #7 Last Updated 8/6/2015
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