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Findings
& Recommendations for the Remediation of Historic Pesticide Contamination
- Final Report March 1999
Table
of Contents
VI.
Recommendations
A.
Site Investigation and Remediation
The Historic Pesticide
Contamination Task Force makes the following recommendations to assist
those involved in the remediation of agricultural properties that have
been developed and that will be developed in the future.
- Sampling of former agricultural areas, and any necessary remediation,
should be conducted prior to site development.
- Sampling of former agricultural areas, and any necessary remediation,
should be conducted for areas with exposed soil that are intensively
used by children, such as schools, daycare centers and playgrounds.
- Sampling and remediation at sites that have already been developed,
except as noted above, should be conducted whenever the current or potential
future occupant desires. The Department should provide guidance concerning
sampling methods and exposure control alternatives to any person concerned
with historic pesticide contamination. Practical exposure control alternatives
include maintaining grass and landscaping cover over areas with pesticide
residues, washing home grown garden vegetables and washing hands after
play or any lawn and gardening activity.
- The Department should provide an appropriate sampling methodology
specifically designed for the investigation of pesticide residues in
soil at agricultural properties (Addendum
5);
- The Department should authorize a remedial alternative involving soil
blending for pesticide residues in soil in former agricultural areas
when it is protective of human health. This represents a substantial
departure from current State policy and the Task Force recommends blending
as a remedial option only at sites with historical pesticide contamination.
B.
Department Oversight
- At the request of the property owner or developer, the Department
should oversee the investigation and remediation of sites with historical
pesticide contamination and issue a No Further Action Letter when no
contamination is present above the Department’s residential soil cleanup
criteria or when the site has been remediated (i.e., appropriate exposure
controls are applied).
- The Department should provide local authorities (planning and zoning
boards, local or county health departments) technical information and
training as necessary.
- No additional action should be required at a site when information
obtained by a review of the site history indicates no historic pesticide
use or when sampling confirms no pesticide contamination at levels above
the Department’s residential soil cleanup criteria.
C.
Application of Remedial Strategies
- The remedial strategies described in this report are recommended as
acceptable for soils with historical pesticide contamination.
- The remedial strategies described in this report should not
apply to other areas of concern on agricultural properties such as underground
storage tanks or pesticide mixing and storage areas.
- One or more remedial options may be used at a site based on site conditions
and development plans.
- The use of grass and landscaping as an exposure control should only
be allowed as part of an exposure control strategy when approved by
the Department.
D.
Real Estate Disclosure
The disclosure of environmental conditions
that can impact the value and/or desirability of a property have been
the subject of legislative and judicial debate in recent years. The issues
related to historic pesticide contamination and the frequent lack of significant
site specific data create a disclosure dilemma for homebuyers, sellers,
real estate professionals and others involved in the residential real
estate industry.
The Task Force discussed two issues
with respect to disclosing information about soil contamination resulting
from the historic use of pesticides. The first issue is how and when to
make buyers aware of the potential for historic pesticide contamination
when purchasing property. The second is the method to convey information
about completed site remediations to the prospective purchasers. The Task
Force provides recommendations regarding real estate disclosure issues
below.
- The Department should provide site specific data concerning historic
pesticide residue contamination in soil in its geographical information
system (GIS) and allow public access through each municipal clerk’s
office, in accordance with "The
New Residential Construction Off-Site Conditions Disclosure Act"
(P.L.1995 c.253).
- Real estate professionals and the Department, should develop model
language in contracts informing buyers of soil contamination where appropriate,
and create informational materials to explain the issue in some detail
and provide buyers with contacts for more information to further educate
the public.
- Sellers should provide prospective buyers with any test results that
have been performed to quantify concentrations of residual pesticides
that a prospective buyer requests and provide information regarding
any deed notice and/or maintenance requirements applicable to the property
where pesticide contamination on the property.
- Sellers should provide a written disclosure to prospective purchasers
of the location and conditions of common areas where contaminated soil
has been consolidated in accordance with the Department’s applicable
soil remediation criteria.
- The State should only require a Deed Notice on the actual property
where the contaminated soil has been consolidated, such as the common
areas, and not on the deed of each individual property in the development.
- Municipal clerks maintain information concerning the presence of contaminated
soil in the common areas for the benefit of subsequent purchasers pursuant
to the Off Site Disclosure Act.
E.
Public Education and Outreach
The Department should develop a comprehensive
public education program and outreach system for providing historic pesticide
contamination information to the public and local authorities. Outreach
should include, a Department
"Hotline" phone number, brochures and information
on the Department web site.
F.
Research Needs
The members of the Pesticide Task
Force believe that this report, while presenting a reasonable, logical
approach to the problems associated with historic pesticide contamination,
is based on scientific data and information that contains limitations
and uncertainties. The Task Force recommends that the Department should
conduct research to support the conclusions and the recommendations developed
by the Historic Pesticide Contamination Task Force. Research topics should
include the following:
- Research the bioavailability of arsenic and other historical pesticides
from soils.
- Evaluate the effectiveness and cost of various remedial strategies
for reducing concentrations of historical pesticides in soils, including
treatment technologies.
- Research potential impacts on ground water quality in vulnerable soils
within agricultural areas.
- Monitor the economic impacts of the policies and recommendations.
- Initiate a state-wide sampling investigation of historical pesticides
in soil including sensitive use areas.
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