UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON D.C. 20460
JAN 26 1990
OFFICE OF
SOLID WASTE AND EMERGENCY RESPONSE
OSWER Directive # 9355.4-02A
MEMORANDUM
SUBJECT: Supplement to Interim Guidance on Establishing Soil
Lead Cleanup Levels at Superfund Sites
FROM: Henry L. Longest II, Director /s/
Office of Emergency and Remedial Response
Bruce M. Diamond, Director /s/
Office of Waste Programs Enforcement
TO: Directors, Waste Management Division, Regions I,
IV, V, VII, and VIII
Director, Emergency and Remedial Response Division,
Region II
Directors, Hazardous Waste Management Division,
Regions III and VI
Director, Toxic Waste Management Division, Region IX
Director, Hazardous Waste Division, Region X
The purpose of this directive is to reiterate that OSWER
Directive #9355.4-02, titled "Interim Guidance on Establishing
Soil Lead Cleanup Levels at Superfund Sites" and dated September
7, 1989, is a guidance document and not a regulation. As is the
case with other guidance documents, this guidance should not be
used as a regulation.
The lead level range provided in the directive is to be
considered by a Regional Administrator in arriving at cleanup
levels to be entered into Records of Decisions for individual
Superfund sites. The directive is not binding in formulating
individual cleanup levels.1 The directive is clear on its
face
The "Effective Date" provision of the directive should not be read to
suggest that the directive has regulatory impact. The provision simply
clarifies that the directive does not require or contemplate that Agency
decision makers will re-open Records of Decisions already entered into in
order to consider the data provided in the directive.
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that it provides only "interim guidance," that EPA is
continuing to evaluate studies on the toxicity of lead, and
that the guidance may be revised as additional information
becomes available with respect to the bioavailability of lead
in soil. Moreover, the directive plainly states that site-
specific conditions and data may be taken into account in
setting soil cleanup levels for individual sites, which may be
above or below the levels set forth in the directive, and that
the administrative record for any particular site should
include site-specific information as well as background
documents on the toxicology of lead.
In summary, the cleanup levels for a particular response
action must be based on the entire administrative record for
that response action, of which the guidance will typically be
only a part.
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