v>EPA
This fact sheet contains
information about:
• The results of U.S. EPA
groundwater sampling
• Public involvement opportunities
on EPA's revised Proposed Plan
Extended Public
Comment Period
U.S. EPA will accept written
comments on the Proposed Plan
during the 90-day public comment
period:
January 11,1999
through
April 11,1999
Availability Sessions
U.S. EPA will hold an availability
session to allow the public to speak
one-on-one with representatives
from the U.S. EPA and Ohio EPA
about the revised Proposed Plan and
related topics.
Date: Monday, March 1
Time: 2-4 p.m. and 7-9 p.m.
Location: Uniontown
Community Center
3696 Apollo Street
Public Meeting
U.S. EPA will hold a public meeting
to explain the Proposed Plan and
accept oral and written comments.
Date: Tuesday, March 2
Time: 7 p.m.
Location: Uniontown
Community Center
United States
Environmental Protection
Agency
Office of Public Affairs Illinois Indiana
Region 5 Michigan Minnesota
77 West Jackson Boulevard (P-19J) Ohio Wisconsin
Chicago, Illinois 60604
U.S. EPA Completes September 1998
Groundwater Sampling and Analysis
Uniontown, Ohio
March 1999
INTRODUCTION
This fact sheet summarizes the results of groundwater sampling that the
U.S. Environmental Protection Agency (U.S. EPA) conducted in September 1998 at
the Industrial Excess Landfill (IEL) Superfund site in Uniontown, Ohio, (see the Site
Location Map below). It also announces a formal public meeting to explain and
receive public comments on U.S. EPA's revised Proposed Plan, and two availability
sessions that give citizens a chance to speak with technical staff representatives of
U.S. EPA and Ohio EPA.
SITE BACKGROUND
In September 1998, several Potentially Responsible Parties (PRPs) for the IEL site
proposed to conduct a new round of groundwater sampling at the landfill. While U.S.
EPA believed it already had sufficient data to support a change in the IEL cleanup
plan, it believed that a new round of sampling would be useful. For example, a new
round of sampling could take advantage of new, low-flow methods of sampling that
measure metals more accurately. As a result, U.S. EPA agreed that the PRPs could
move forward, provided that they followed U.S. EPA-approved procedures and agreed
to U.S. EPA oversight.
IEL Site Location Map
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The September 1998 sampling plan basically repeated the
sampling that had been conducted in March 1997. It
involved sampling 52 monitoring wells, some of which
were on the landfill itself, while others were offsite (mostly
west and south of the landfill). In order to have its own
set of data with which to compare the PRPs' results, U.S.
EPA collected samples from 23 of the 52 monitoring
wells. U.S. EPA also collected samples from six
residential wells ~ four of which were west of the site and
two north of the site. Analysis of the samples focused on
"contaminants of concern" for the IEL site. These are a
group of organic chemicals and metals that EPA had
determined should be monitored over time, and that are
listed in the Technical Memorandum describing the
September 1998 sampling results. U.S. EPA has placed
copies of the Technical Memorandum in the information
repositories. (See the back page of this fact sheet for the
locations of the repositories). U.S. EPA has been tracking
these contaminants since 1988. In addition, U.S. EPA
conducted an analysis of Tentatively Identified
Compounds (TIC). The purpose of TIC analysis is to
determine whether any chemicals in addition to the
contaminants of concern have emerged as a problem at the
site. U.S. EPA considers it unlikely that new contaminants
of concern will be found at IEL, given the length of time
the landfill has been closed and the degree of monitoring
that has taken place. Nevertheless, U.S. EPA has
routinely included TIC analysis as part of groundwater
sampling at IEL as an extra precaution.
Because U.S. EPA and the PRPs collected separate
samples, there are two sets of data for the September 1998
sampling event. This fact sheet summarizes U.S. EPA's
data. The PRPs made their own data public in January
1999. U.S. EPA is currently completing a quality
assurance review of data collected by the PRPs. Once the
review is complete, U.S. EPA will release the validated
PRP data.
SUMMARY OF RESULTS
The September 1998 sampling results continue to show
that there is no plume of contamination moving out of the
landfill. Please refer to the full report in the site
information repositories for a detailed discussion of all of
the results.
No Contamination Above Drinking Water Standards
Found in Residential Wells
The analytical results for the residential well samples
collected do not indicate any contamination above federal
drinking water standards. Arsenic and barium, which have
previously been linked to IEL, were the only two metals
detected in residential well samples (see Figure 1 for
location of these wells). Both of these metals were found
to be significantly below the federal drinking water
standards. The analytical results for all of the residential
well samples are tabulated in Appendix B of the full
report.
Results from Monitoring Wells
Organics. The September 1998 results revealed no
exceedances of federal drinking standards for volatile
organic compounds (VOC) outside the landfill property
boundary. Within the landfill boundary, VOCs were
detected at monitoring wells MW-1 li and MW-21s
(see Figure 2 for location of these wells). At MW-1 li,
vinyl chloride was detected at a concentration that is equal
to the federal drinking water standard. At MW-21s,
benzene, 1,1-dichloroethane, 1,2-dichloroethene, 1,2-
dichloroethane, toluene, and vinyl chloride were detected.
Of the VOCs detected at MW-21s, 1,2-dichloroethane and
vinyl chloride were present at concentrations that exceeded
their respective drinking water standards. Although they
exceeded these standards, the concentrations for these
VOCs were lower than their maximum historical
concentrations.
Inorganics. U.S. EPA found no evidence of a plume of
metals contamination outside of the landfill boundary.
Overall, metals contamination in the monitoring wells
appears to have decreased significantly from the levels
reported in previous sampling events. Some of this
reduction may be due to the low-flow sampling technique
used, which produces samples more representative of
actual groundwater conditions than does the older
sampling techniques previously used. This new sampling
continues to show some exceedances of federal drinking
water standards for certain metals, but these exceedances
are sporadic. That is, they do not exhibit the consistent
pattern that would indicate a plume of contamination
moving out of the landfill. The sporadic nature of these
metals exceedances is similar to that found in the March
1997 sampling results. Groundwater sampling results that
equal or exceed drinking water standards include
chromium at MW-1 Is, MW-181, MW-24i, and MW-27i;
thallium at MW-27s; nickel at MW-18i and MW-25i; and
lead at MW-18s (see Figure 2 for locations of these wells).
Tentatively Identified Compounds. The TIC results are
generally consistent with previous sampling surveys
conducted at the site (1990-1993). The data provide no
basis for concluding that new chemicals should be added
to the contaminants of concern for the site. The TIC data
is presented in Appendices A-2, A-4, B-2, and B-4 of the
Technical Memorandum referenced above.
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Comparison of Selected September 1998 Groundwater Monitoring Well
Analytical Results with Previous Results (1990-1993) and
Federal Drinking Water Standards
(Concentrations in //g/L)
Sampling
Location
MW-11s
MW-111
MW-18s
MW-181
MW-21s
MW-24I
MW-25I
MW-27s
MW-27I
Compound
Chromium
Vinyl chloride
Lead
Chromium
Nickel
Benzene
1,1-Dichloroethane
cis 1,2-Dichloroethene
1,2-Dichloroethane
Toluene
Vinyl chloride
Chromium
Nickel
Thallium
Chromium
Previous Results
(Range)
NDb-22.5
ND-3
44.6-279
ND-7.6
ND-23.1
ND-17
ND-56
ND-20
ND-8
ND
ND-9
ND-739
ND-352
ND-3.4
ND-94.2
September 1998
Result
164
2/NDc
32.5
147/68.3
202/194
3
41
16
7
2
8
100
150
2.5
115/94.1
Federal Drinking
Water Standard3
100
2
15
100
100
5
--
--
5
1,000
2
100
100
2
100
Notes:
a Federal drinking water standards are maximum contaminant levels (MCL), which are the maximum
permissible level of a contaminant in water delivered to users of a public water system
b Nondetect (ND)
c Sample result/duplicate result
OPPORTUNITIES FOR PUBLIC INVOLVEMENT
U.S. EPA will hold two availability sessions on Monday, March 1,1999, from 2-4 p.m. and 7-9 p.m. at the Uniontown
Community Center, 3696 Apollo Street. The purpose of the availability sessions is to allow the public to speak one-on-one
with representatives from U.S. EPA and Ohio EPA about the revised Proposed Plan and related topics. The revised Proposed
Plan calls for addressing groundwater contamination by the use of monitored natural attenuation instead of building a pump-
and-treat system. It also proposes changes to the design of the landfill cap.
A formal public meeting will be held on Tuesday, March 2,1999, at 7 p.m. at the same location. The purpose of the public
meeting is to explain the revised Proposed Plan and to accept oral and written comments on the Plan.
In addition, U.S. EPA has extended the public comment period until April 11,1999, to give the public extra time to provide
comments on the revised Proposed Plan. The total length of the public comment period will be 90 days. U.S. EPA will not
make a final decision until it has considered all of the comments received during the comment period. Written comments,
which must be postmarked no later than April 11,1999, should be sent to Denise Gawlinski at the address on the next
page. All comments will be addressed in a document called a Responsiveness Summary, which will be made available to the
public after a final decision is made.
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FOR ADDITIONAL INFORMATION
If you would like a copy of the entire Technical Memorandum describing the September 1998 sampling results, please contact
Denise Gawlinski at the address or telephone number below. Also, please contact Ms. Gawlinski with questions about the
upcoming availability sessions and public meeting. If you have technical questions regarding the sampling results or the
revised Proposed Plan, please contact Ross del Rosario or Larry Antonelli at the addresses or telephone numbers below.
U.S. EPA Contacts State of Ohio Contact
Denise Gawlinski
Community Involvement Coordinator
U.S. EPA (P-19J)
77 West Jackson Boulevard
Chicago, Illinois 60604-3590
(312)886-9859
gawlinski.denise@epa.gov
Ross del Rosario
Remedial Project Manager
U.S. EPA(SR-6J)
77 West Jackson Boulevard
Chicago, Illinois 60604-3590
(312)886-6195
delrosario.rosauro@epa.gov
Larry Antonelli
Project Manager
Ohio Environmental Protection Agency
2110 East Aurora Road
Twinsburg, Ohio 44087
(330)963-1127
larry. antonelli@epa. state. oh.us
or call the U.S. EPA hotline - (800) 621-8431
INFORMATION REPOSITORIES
Copies of the Technical Memorandum, the January 1999 Proposed Plan, and other site-related information are available for
review in the information repositories at:
Lake Township Clerk's Office
12630 Market North
Hartville, Ohio
Hartville Branch Library
411 East Maple Street
Hartville, Ohio
These documents are also available for review in U.S. EPA's Records Center in Chicago, Illinois.
vvEPA
U.S. Environmental Protection Agency
Region 5
Office of Public Affairs
77 West Jackson Boulevard (P-19J)
Chicago, IL 60604-3590
ADDRESS CORRECTION REQUESTED
FIRST CLASS
Printed on Recycled Paper
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