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U.S. Environmental Protection Agency Region 3
Hanlin-Allied-Olin Superfund Site
Moundsville, WV
Cleanup Progress and Community Update
March 2007
Cleanup Activities in High Gear
For the last two years, construction crews have been busy digging up buried waste and contaminated soils on
the Hanlin-Allied-Olin Superfund Site. Wastes were buried in the ground when the facility was producing
chemicals from the 1950s to the 1990s. In addition, accidental spills and surface water run-off contributed to
soil contamination.
A state of the art landfill was constructed to properly contain the hazardous material. The landfill consists of
two separate units, referred to as the south cell and the north cell (see Figure 1). Wastes and contaminated
soils from the former Allied/LCP/Hanlin chemical operations in the southern portion of the site were placed in
the south cell. These wastes contain volatile organic compounds and mercury. The south cell was filled to
capacity and closed with a multi-layer synthetic cap. It was completed in October 2006 and is now covered
with soil and grass.
Currently, the crews are excavating buried waste in low lying areas adjacent to the Ohio River, which are
identified as Solid Waste Management Units (SWMUs) R, S, and T/X on Figure 1. These wastes, generated
from the former Allied chemical operations on the northern portion of the site, contain semi-volatile
compounds and are being placed in the north cell. Some of the waste contains nitrobenzene and
dichlorobenzene, which are odorous even at low concentrations.

How We are Working to
Control Odors
While it is not possible to
completely eliminate the odors,
EPA is taking a number of steps
to keep them at a minimum and
insure human health by regularly
monitoring the air around the site
during construction activities.
Crews are digging up the odorous
materials during the coldest
months of the year; stopping
excavation of the odorous wastes
if the wind is blowing in the
direction of the residences or golf
course; covering odorous waste
with non-odorous material; and
spraying a natural air freshener
into the atmosphere in the vicinity
of the north cell. To ensure the
protection of nearby residents,
golf course personnel and golfers,
EPA has established site specific
air standards for the fence line for
most of the chemicals that we
expect to find at the site. These
standards have not been exceeded
since wastes were initially
excavated in September 2004.
ALLIED PARK
NORTH CELL
SOUTH CELL
LEGEND
Allied Park SWMUs for Removal
OSDF
Property Boundaries
Site Features
1,000 500	0
Removal Action Overview
Hanlin-Allied-Olin Site, Moundsvilte, WV
Geosyntec0
consultants
Honeywell
Figure
1

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