6EPA
United States
Environment*! Protection
Agency
Office of
Sot»d Waste and
Emergency Response
DIRECTIVE NUMBER: 9432.01(81)
TITLE: Definition of "Liquid Waste"
»
APPROVAL DATE: 6-28-81
EFFECTIVE DATE: 6-28-81
ORIGINATING OFFICE: osw
E FINAL
D DRAFT
LEVEL OF DRAFT
DA Signed by AA or DAA
D B Signed by Office Director
DC Review & Comment
REFERENCE (other documents):
OSWER OSWER OSWER
VE DIRECTIVE DIRECTIVE Dl
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PART 260 SUBPART B - DEFINITIONS
DOC: 9432.01(81)
Key Words:
Regulations;
Subject:
Addressee:
Originator:
Source Doc:
Date:
Summary:
Waste Analysis, Liquid Waste, Free Liquids
40 CFR 260.10(a)(25), 261.21
Definition of "Liquid Waste"
Chris Howell, Chemical Processors, Inc,
5501 Airport Way south Seattle, WA.
David Friedman, Manager, Waste Analysis Program,
Hazardous and Industiral Waste Division
#9432.01(81)
6-28-81
A liquid is any material that will pass through a 0.45 micron filter at a
pressure differential of 75 psi. If the material to be evaluated consists of
two or more phases, then the phases should be separated by centrifugation or
other means prior to evaluating whether any of the phases meet the above defini-
tion. Free liquids as defined in §260.10 (a)(25) are defined as any liquid
which passes through the Paint Filter Test (method 9095).
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9432.01 (81)
"i UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON. D.C. 20460
" OFFICE OF SOLID WASTE
' _ JUN L c lac,
OFFICE OF WATER
AND WASTE MANAGEMENT
Mr. Chris Howell
Chemical Processors, Inc.
5501 Airport Way south
Seattle/ WA 98108
Dear Mr. Howell:
I am in receipt of your letter of June 1, 1981 to Mr.
Ken Schuster regarding your request for a working definition "
of a "liquid" waste.
As you are aware, the Agency is actively working to
develop improved laboratory procedures for. defining both
"ignitable" and "liquid." In the interim you may employ the
following working definition of a "liquid" when
evaluating wastes:
A liquid is any material that will pass through a 0.45
micron filter at a pressure differential of 75 psi. If
the material to be evaluated consists of 2 or more phases
then the phases should be separated by centrifugation or
other- means prior to evaluating whether any of.the phases
meet the above definition. "Free liquids" as defined in
§260.10(a)(25) are a subset of this broader class of liquids.
»
Any waste OB phases of a waste found to meet the above
definition of a'"liquid" should then be evaluated for ignitability
using the procedures in §261.21. All such wastes which contain
or consist of liquids which have a flash point below 60°C are
to be considered as ignrtable wastes.
I hope this response serves to answer your question. If
you would like further information please feel free to give
me a call at (202) 755-9187.
David Friedman
Manager
Waste Analysis Program
Hazardous and Industrial Waste Division (WH-565)
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MEMORANDUM
SUBJECT: Mailing of Directives System Backlog
FROM: Sherry Fielding'ZXWH^f^
TO: Regional Directives Coordinators
1987
Enclosed is the fchipd mailing <=>? the baekjeg @f d.@eumenfc8 fer» the
OSWER Directives System. The 23 documents which are included in
this mailing are all for RCRA program.
The numbers and titles are as follows:
9432.01(81) Definition of Liquid Waste
9432.01(83) Regulatory Clarification of Totally Enclosed
Treatment Facility
9432.01(84) Determination of Operator at DOE Oak Ridge
Faci1ity
9432.01(85) Definition of Treatment
9432.02(81) Totally Enclosed Treatment Facilities
9432.02(83) Recent Court Decisions on RCRA Applicability
to Storage Facilities
9432.02(84) Regulation of Hazardous Aqueous Waste at
Wastewater Treatment Facilities
9432.03(84) Permit Policy for Decanning and Crushing
Operat ions
9432.05(84) Definition of Treatment as Defined in 4O CFR
26O.1O Subpart B - Definitions
9432.07(84) Guidance on Implementation of Wastewater
Treatment Unit Exemption
9432.04(85) Clarification of "Existing Units" Under HSWA
9433.01(84) Changes Regarding the Delisting Review Process
9433.03(84) Delisting of Spent Pickle Liquor Generated
from the Porcelain Enamel Industry
9433.05(84) Test Methods and Standards to Evaluate Cyanide
Levels in Inorganic Wastes
9433.06(84) Issues Regarding a Delisting Process
9433.07(84) Information Required for Review of Delisting
Pet it ions
9433.02(85) Effect of HSWA on State Delisting Decisions
9441.O1(8O) Hazardous Waste Regulation of Empty Drums for
Reuse and Reconditioning
9441.02(80) Agricultural Waste Exclusion
9441.O3(8O) Exemption of Certain Waste from Drilling
Operat i ons
9441.O4(8O) Railroad Ties as Hazardous Wastes Under the
Mixture Rule
9441.OS(SO) Small Quantity Generator
9441.01(81) Interpretation of the Fossil Fuel Combustion
Waste Exclusion in S. 261.4(b)(4)
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Also, included is an orange cover which should replace the cover
which in numbered "9823.3" titled "Timing of CERCLft Cost Recovery
fiction*". The correct number is 983S.3, as reflected on the
enclosed cover. Sorry for any inconvience.
I hope that these documents arrive in better condition than some
of the previous packages. If you have any questions or sugges-
tions, please give rne a call at FTS 382-4483.
Enclosures
cc: Thad Juszczak
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