U.S. ENVIRONMENTAL PROTECTION AGENCY
POLLUTION/SITUATION REPORT
North Bridge Street Benzene - Removal Polrep
Initial Removal Polrep
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Region V
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Subject:
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POLREP #1
Initial
North Bridge Street Benzene
C53F
Linden, MI
Latitude: 42.8150430 Longitude: -83.7826410
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To:
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Mark Johnson, ATSDR
Valencia Darby, Department of Interior
Dan Wyant, MDEQ
Bill Schuette, Michigan Department of Attorney General
Rodney Stokes, Michigan DNR
Todd Goeks, NOAA
Wayne Babcock, U.S. Department of Interior
Robert Burr, U.S. Department of Interior
Carolyn Bohlen, U.S. EPA
Sam Borries, U.S. EPA
Yolanda Bouchee-Cureton, U.S. EPA
Mark Durno, U.S. EPA
Jason El-Zein, U.S. EPA
HQ EOC, U.S. EPA
Sherry Fielding, U.S. EPA
Charlie Gebien, U.S. EPA
John Glover, U.S. EPA
Sharon Jaffess, U.S. EPA
Shelly Lam, U.S. EPA
Matt Mankowski, U.S. EPA
Thomas Marks, U.S. EPA
Mike Ribordy, U.S. EPA
Carol Ropski, U.S. EPA
Annette Trowbridge, U.S. Fish & Wildlife
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From:
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Elizabeth Nightingale, OSC
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Date:
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7/10/2014
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Reporting Period:
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7/8/14-7/9/14
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1. Introduction
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1.1 Background
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Site Number: |
C53F |
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Contract Number: |
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D.O. Number: |
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Action Memo Date: |
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Response Authority: |
CERCLA |
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Response Type: |
Emergency |
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Response Lead: |
EPA |
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Incident Category: |
Removal Assessment |
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NPL Status: |
Non NPL |
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Operable Unit: |
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Mobilization Date: |
7/8/2014 |
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Start Date: |
7/8/2014 |
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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: |
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FPN#: |
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Reimbursable Account #: |
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1.1.1 Incident Category
Emergency Response
1.1.2 Site Description
The site encompasses several blocks of downtown Linden, and includes residential and commercial buildings, including a nursing care facility.
1.1.2.1 Location
Vicinity of 109 N Bridge Street, Linden, MI
1.1.2.2 Description of Threat
In 2013, Genesee County Land Bank Authority requested EPA assistance at 105 N Bridge Street (a property they owned), to help assess the source of odors in the building and general vicinity. EPA conducted a site assessment on September 24, 2013. Air monitoring was conducted at 18 sanitary or storm sewer inlet location, and indoor air monitoring was conducted inside 105 N Bridge. Monitoring was conducted with a MultiRae and UltraRae (for benzene). Indoors, no levels above background were detected. Outdoors, the highest VOC reading was collected at a sanitary manhole (20.3 ppm), and 1.0 ppm benzene. Based on the assessment results, EPA did not find an imminent threat to human health or the environment at the time.
On July 8, 2014, EPA responded to a NRC report (#1088279) and request for assistance from the Michigan Department of Environmental Quality (MDEQ) regarding benzene odor complaints within downtown Linden. Odors were highest in several basements near sump pump pits, and in the vicinity or storm drains. MDEQ collected a water sample from one sump pump pit and detected high levels of benzene in the water. The source of this material is currently unknown.
1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results
See Operations section of this report.
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2. Current Activities
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2.1 Operations Section
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2.1.1 Narrative
On July 8 and 9, EPA made contact with property owners/ occupants in the vicinity of the area where odors have been report, and conducted indoor and outdoor air monitoring and air sampling.
Property Owner/Occupant Contacts
EPA attempted to reach all property occupants within 1 block in each direction of the area where odors have been reported. EPA gathered information on whether the property has a basement, whether it has a sump pump, whether the occupants have experienced odors in the past, and whether they would like us to contact air monitoring inside their home/business. A map of the interview results is in development.
Air Monitoring
Air monitoring was conducted with a MultiRAE - with the goal of measuring ambient volatile organic compounds (VOCs). If VOC levels exceeded 1 part per million (ppm), an UltraRAE was used to measure ambient benzene. Benzene was also measured if there was any other reason to measure it such as upon request, or in investigation of a suspected source area, etc. Sorm and sanitary system monitoring as conducted by with 2 foot long tubes attached to the MultiRAE and UltraRAE. The tubes were inserted into the inlet or catch basin or access area and all readings were taken at a similar depth.
An excel table that includes all collected monitoring data is included in the documents section of the epaosc.net website for this action. A map of these results is in development.
Indoor Air Monitoring
During July 8-9, EPA conducted air monitoring at 13 properties and collected a total of 38 air monitoring readings at various locations within those properties. In the breathing zone (bz), measured VOCs ranged from 0-3.73 ppm. Measured benzene ranged up to 0.05 ppm.
Levels of VOCs and benzene were higher in a few non breathing zone areas indoors within a few properties - levels were highest in the sump pump pits where MDEQ had recently detected high levels of benzene in the water. VOCs in non-breathing zone areas ranged from 0 to 13.02 ppm. Benzene in non-breathing zone areas ranged from 0 to 4.85 ppm.
Outdoor Air Monitoring
A total of 50 points along the storm and sanitary sewer system within a similar area were monitored approximately within 1 block in each direction of the area where odors have been reported. WIthin the storm drainage system, lower explosive limit (LEL) was zero at all points. VOCs ranged between zero and 5.87 ppm. Benzene ranged between zero and 6.15 ppm. Within the sanitary sewer system, LEL was zero at all points, VOCs ranged between zero and 2.5 ppm and benzene was zero at all points where it was tested.
Indoor Air Sampling
A total of 6 confirmatory 24 hour air samples were collected. 4 were collected at various locations within buildings that had higher VOC levels upon monitoring and did not have too many obvious sources present (a number of properties had things such as gasoline cans and engines, chemicals used in beauty shops, recently painted, etc present). 1 was collected at a location that had previously experienced odors. The last sample was collected oudoors to serve as an outdoor comparison. These samples are being submitted to the laboratory and analyzed for VOCs. Results will be available early next week.
2.1.2 Response Actions to Date
See above.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
Several suspected sources have been identified. Further investigation is ongoing.
2.1.4 Progress Metrics
| Waste Stream |
Medium |
Quantity |
Manifest # |
Treatment |
Disposal |
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2.2 Planning Section
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2.2.1 Anticipated Activities
On July 10, START is scheduled to be onsite again to collected remaining 24 hour samplers. START will also conduct follow up air monitoring at additional and previously visited properties if requested.
EPA will evaluate the analytical results to determine if further emergency response actions are necessary. MDEQ is conducting further investigation of several potential sources.
EPA is also sharing the data collected with public health agencies, who are able to provide public health related interpretation of the data.
2.2.1.1 Planned Response Activities
2.2.1.2 Next Steps
Further actions will be determined after evaluation of all data collected to date.
2.2.2 Issues
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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 estimate of expenditures is not yet available.
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Budgeted |
Total To Date |
Remaining |
% Remaining |
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Extramural Costs
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| TAT/START |
$15,000.00 |
$0.00 |
$15,000.00 |
100.00% |
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Intramural Costs
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| Total Site Costs |
$15,000.00 |
$0.00 |
$15,000.00 |
100.00% |
* 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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3.1 Unified Command
3.2 Cooperating Agencies
MDEQ
City of Linden
MDCH
ATSDR
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4. Personnel On Site
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7/8/14
EPA - 1
START -2
MDEQ - 2
City of Linden - 4
7/9/14
EPA -1
START - 2
MDEQ - 2
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5. Definition of Terms
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| ATSDR |
Agency for Toxic Substances and Disease Registry |
| BZ |
Breathing Zone |
| CERCLA |
Comprehensive Environmental Response, Compensation, and Liability Act |
| CERCLIS |
Comprehensive Environmental Response, Compensation, and Liability Information System |
| DNR |
Department of Natural Resources |
| EPA |
Environmental Protection Agency |
| ERNS |
Emergency Response Notification System |
| ERRS |
Emergency and Rapid Response Service |
| MDEQ |
Michigan Department of Environmental Quality |
| PPM |
parts per million |
| NCP |
National Oil and Hazardous Substance Pollution Contingency Plan |
| NOAA |
National Oceanic and Atmospheric Administration |
| NPL |
National Priorities List |
| NRC |
National Response Center |
| OSC |
On Scene Coordinator |
| PPE |
Personal Protective Equipment |
| PPM |
Parts per million |
| RCRIS |
Resource Conservation and Recovery Act Information System |
| RP |
Responsible Party |
| RRT |
Regional Response Team |
| START |
Superfund Technical Assessment and Response Team |
| US FWS |
United States Fish and Wildlife Service |
| USCG |
United States Coast Guard |
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6. Additional sources of information
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6.1 Internet location of additional information/report
www.epaosc.net/northbridge
6.2 Reporting Schedule
Another POLREP will be issued after we receive laboratory data back.
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7. Situational Reference Materials
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No information available at this time.
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POLREP #1 Last Updated 7/11/2014
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