United States
Environmental Protection
Agency
Office of
Solid Waste and
Emergency Response
3 EPA
DIRECTIVE NUMBER: 9360.0-34
1 ITLE: Determination of Imminent and
Substantial Endangerment for Removal
Actions
APPROVAL DATE: 3/19/93
EFFECTIVE DATE: 8/19/g3
ORIGINATING OFFICE: OERR
E FINAL
D DRAFT
LEVEL OF DRAFT
fj A — Signed by AA or DAA>--
fj B — Signed by Office Director
CH C — Review & Comment
REFERENCE (other documents):
OSWER OSWER OSWER
VE DIRECTIVE DIRECTIVE Dl
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United States
Environmental Protection
Agency
Office of
Solid Waste and
Emergency Response
EPA
DIRECTIVE NUMBER: 9360.0-34
TITLE: Determination of Imminent and
Substantial Endangerment for Removal
Actions
APPROVAL DATE: 3/19/93
EFFECTIVE DATE: 8/19/93
ORIGINATING OFFICE: 0ERR
E FINAL
D DRAFT
LEVEL OF DRAFT
fj A — Signed by AA or DAA>--
fj 8 — Signed by Office Director
CH C — Review & Comment
REFERENCE (other documents):
OSWER OSWER OSWER
DIRECTIVE DIRECTIVE
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&EPA United States environmental Protection Agenc:y , . Qlrectlve NumDer
Washington. DC 2O.eo
OSWER Directive Initiation Reauest 9360.0-34
2. Ottalnator InformaUon
Name 01 Contact pnon I Mall Code IOffiCI T eI~honl Cod.
Betti VanEpDs ; 5201G OERR 260-9760
3. TiUe Determination of Imminent and Substantial Endangerment for
Removal Actions
.
4. Summary 01 Qirectlve (include bnef statement 01 pUr;lose)
This memorandum clarifies the process for making endangerment
determinations for removal actions pursuant to Delegation of
Authority 14-14-A under Section 106 of the Comprehensive ~ .- -- -
.- .
Environmental Response, Compensation and Liability Act.
[!: KeywordS Actions, Delegation
Removal of Authority 1I..-14-A, and endangermer! t
58. Does ThiS Directive ~persea. PrevIous Dlrectrve(s)? EJNO nv~ What directivt (n!.lm~.. titlt)
L....J
b IJ.,es It Supplement Previous Directive(s)? ~ I N'I D,,'u What d~i',C! (n:.;~br.. ::t!o)
7 Qralt Le..eI 0 B.. Signed by Office Director 0 C - For Review & Comment D 0 - In Development
o A - Signed by AAJDAA
8. Cocumeot to be distributed to States by Headquarters?
Dves
QNO
Date
Bruce t1. Diamond,.
and Henry L. Longest II, OERR
EPA Form 1315-17 (Aev. S-87) Prevtouslditions ar.Ol)sol"..
OSWER . .QSWER OSWER 0
VE DIRECTIVE DIRECTIVE DIRECTIVE
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MEMORANDUM
SUBJECT:
FROM~
TO:
PURPOSE.
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, D,C. 20460
JU3 I 9 1993
OFFICE OF
SOLID WASTE AND EMERGENCY
RESPONSE
OSWER Directive 9360.0-34
NTIS Number PB93-963416
EPIC Number EPA540-F-93-039
Determination of Imminent and Substantial Endangerment
for Removal Actions ~. ~
Bruce M. Diamond, Director
Office of Waste progra~s E~ 0 cem~nt, J7
Henry L. Longest II, Dl~~c~or ~
Office of Emergency a~d Remedial onse
.Regional Administrators, Regions I-X
This memo~andum clarifies the process for making endanger-
ment determinations for removal action~ pursuant to Delegation of
, Authority 14-14-A under Section 106 of the Comprehensive Environ-
mental Response, Compensation and Liability Act, as amended
(CERCLA) .
BACKGROUND
,"
\
CERCLA Delegation of Authority 14-14-A gives Regional
Administrators the ability to make determinations of imminent and
substantial endangerment. These determinations establish the
basis for pursuing legal relief when there is an actual or
threatened release of a hazardous substance. As currently
written, the authority can be exercised only after consultation
with the Office of the Assistant Administrator for Solid Waste
and Emergency Response (OSWER). .
In a memoraqdum dated April 4, 1990 (Clarification of
Delegations of authority 14-14-A, 14-14-B and 14-14-C under
CERCLA), we explained that the consultation requirement would be
satisfied if a Region based the endangerment determination on the
Risk Assessment Guidance for Superfund (EPA/1-89/002, signed
October 113, 1989). This Guidance describes a detailed methodolo-
gy for evaluating risks that is primarily applicable to remedial
@
Recycled/Recyclable
Prt"lIId with Soy,QlncM. 1"- 0" J)llper that
contain. at least 50"1. ..cyCled fiber
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actions. censequently, it is often not a good referenc.e for
supporting removal action decisions.
OBJECTIVE
This directive establishes a revised procedure for Regions
to use in satisfying the consultation requirement when making
endangerment determinations for removal actions.
IMPLEMENTATION
From now on, the consultation requirement under delegation
l4-l4-A can be met if a Region bases an endangerment determina-
tion on appropriate Superfund policy or guidance, or on collabo-
ration with a trained risk assessor. Appropriate sources in-
clude, but are not limited to, relevant action level or clean-up
standards, Agency for Toxic Substances and Disease Registry
documents or personnel, or staff toxicologists. In the absence
of a good alternative, Regions will have to consult with OSWER.
Whatever source is used must be cited in the endangerment
finding section of the action memorandum, along with a detailed
justification of .the decision. By carefully documenting the
endangerment finding, future problems and legal challenges will
be minimized. Furthermore, Regions should take full advantage of
the model administrative order on consent (OSWER Directive
#9833.06) and the model removal unilateral administrative order
(OSWER Directive #9833.07). The language in these model orders
is designed to help Regions ensure that their efforts have .the
soundest legal basis possible.
cc:
Richard Guimond
Tim Fields
William White
Lisa Friedman
sally Seymour
Debbie Dietrich .
Waste Management Division Directors, Regions I-X
Environmental Service Division Directors, Regions
Superfund Document Center
I, VI, VII
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