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Helms, Greg

From: Helms, Greg

Sent: Thursday, September 03, 2015 4:58 PM

To: 'Regulatory Assistance Office@DTSC'

Cc: 'Corcoran, Charles@DTSC'

Subject: RE: Hazardous waste research project

Gloria‐ 

Thank you very much.

I did look at the list of California waste codes you sent, and did not see which waste codes might apply to solid

corrosives.  

Charles: I can stay for a bit longer today if you have time to talk now, or I will be in on Tuesday.

Thanks again.

________________________________ 

Gregory Helms

U.S. EPA

Waste Characterization Branch

Office of Solid Waste and Emergency Response

phone: 703‐308‐8845

fax: 703‐308‐0514

helms.greg@epa.gov

Address for regular/USPS mail:

1200 Pennsylvania Ave. NW

Mail Code 5304P

Washington, DC 20460

Address for overnight/hand delivery mail:

Two Potomac Yard

2733 S. Crystal Dr.

5th Floor; N‐5611

Arlington, VA 22202  

See OSWER's new LEAF leach test methods at:

http://epa.gov/wastes/hazard/testmethods/sw846/new_meth.htm

For an overview of hazardous waste regulation see the RCRA Orientation Manual, at:

www.epa.gov/epawaste/inforesources/pubs/orientat/
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From: Regulatory Assistance Office@DTSC [mailto:RAO@dtsc.ca.gov]  

Sent: Thursday, September 03, 2015 4:30 PM

To: Helms, Greg

Cc: Corcoran, Charles@DTSC

Subject: RE: Hazardous waste research project

Greg, 

I spoke to my supervisor, Charles, who I have copied on this message. He would like to talk to you 

about this when you have time. 

Gloria.Conti@dtsc.ca.gov

Regulatory Assistance Officer 

714-484-5400 

DTSC Regulatory Assistance Officers provide informal guidance only about management of hazardous waste for the 

convenience of the public. Such oral or electronic mail advice is not binding upon DTSC, nor does it have the force of law. 

If you would like a formal opinion on a matter by DTSC, please contact the responsible program office directly. You 

should also refer to the statutes and regulations, DTSC Policies and Procedures, and other formal documents. If you 

would like to provide us feedback please do so at: 

http://calepa.ca.gov/Customer/CustForm.pdf

From: Helms, Greg [Helms.Greg@epa.gov] 

Sent: Monday, August 31, 2015 1:22 PM 

To: Regulatory Assistance Office@DTSC 

Subject: Hazardous waste research project

To: DTSC‐

I am working on a research project regarding corrosive hazardous waste, and see that there is a

difference between the federal definition and the California state regulatory definition for

corrosivity. The California regulations go beyond the federal definition, and include within their

scope solid material as well as liquids, whereas the federal definition regulates only liquid or

aqueous waste.

Do you collect any data that is in an available form on California corrosive hazardous wastes

that might allow someone to distinguish between liquid/aqueous wastes and corrosive wastes

that are solid materials?

If not, is there someone on your staff that may be knowledgeable about the kinds of wastes

generated that would be available to talk about this question?
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Thanks for your help. ________________________________ 

Gregory Helms

U.S. EPA

Waste Characterization Branch

Office of Solid Waste and Emergency Response

phone: 703‐308‐8845

fax: 703‐308‐0514

helms.greg@epa.gov

Address for regular/USPS mail:

1200 Pennsylvania Ave. NW

Mail Code 5304P

Washington, DC 20460

Address for overnight/hand delivery mail:

Two Potomac Yard

2733 S. Crystal Dr.

5th Floor; N‐5611

Arlington, VA 22202  

See OSWER's new LEAF leach test methods at:

http://epa.gov/wastes/hazard/testmethods/sw846/new_meth.htm

For an overview of hazardous waste regulation see the RCRA Orientation Manual, at:

www.epa.gov/epawaste/inforesources/pubs/orientat/