# Enclosure 1El sal elq•kleen.CERTIFIEDMAII70101670000113158113RETURNRECEIPtREQUESTED April
8, 2013 Ms. Mary Torn Kissell (Mail Code E143-01) U.S. Environmental Protection Agency Research Triangle Park, NC 27711 RE: OSWRO Survey Dr. Ms. Kissell: On March Ii, 2013, Penny Lassiter, Group Leader Refining and Chemicals Group, USEPA mailed

a letter to John Scott Kuhn, Clean Harbors Environmental Services. That letter requested information about emissions
of hazardous
air pollutants (HAP) and other related information. This is a response for Safety-Kleen Systems, Inc.,

a subsidiary
of Clean Harbors located
at 601 Riley Rd., East Chicago, IN 46312. Attached

is a completed Enclosure

1, noting that the facility is not an Off-Site Waste and Recovery Operations facility. If you have any questions, you can contact me at 219-391-6127. Respectfully, A4u5 Deimis M. Z46dni Sr. Cornpliaike ManagerSafety-KleenSystems,Inc.601RileyRoadEastChicago,IN46312-1698Phone219.397.1131Fax219.391.6180ENCLOSURE

1 INFORMATION COLLECTION REQUEST FOR Off-Site Waste and Recovery Operations This information collection request

is being conducted
by the Environmental Protection Agency’s (EPA) Office of Air and Radiation (OAR)
to assist the EPA Administrator

in developing emission standards for Off-Site Waste and Recovery Operations under Clean Air Act (CAA) section 112. The survey

is being sent under the authority
of Section 114 of the CAA. BACKGROUND: Section 112 (d) of the Clean Air Act (CAA) calls for EPA to promulgate national technology-based emission standards for hazardous
air pollutants (NESHAP)
for sources emitting oneor more of the hAP listed in CAA section 112(b). For major sources, these technology-based standards must reflect the maximum degree of emissions reductions
of HAP achievable (after considering cost, energy requirements,
and nonair quality health and environmental impacts).

In addition, under CAA section

1 12(d)(6), EPA
is required

to review the technology-based standards and revise them “as necessary (taking into account developments

in practices, processes, and control technologies)”

noless frequently than every

8 years. Furthermore,
weare required by section

1 12(f) (2) of the Clean Air Act (CAA)
to assess the risk remaining (residual risk) eight years after the promulgation

of maximum achievable control technology (MAC’T) standards under section 112(d).
If wefind the residual risk fails to protect public health with an ample margin of safety orto prevent (taking into consideration various factors) adverse environmental effects, weare required

to promulgate more stringent standards. The Off-Site Waste and Recovery Operations maximum achievable control technology (MACT) standards were promulgated

on July
1, 1996 (see 61 FR 34140). We are collecting specific detailed information

to support development

of standards

as part of ourreview
as described above. Please note this survey
is for offsite waste and recovery operations only. CAA section 114(a) states that the Administrator may require any person who ownsor operates any emission source, who manufactures emission control equipment

or process equipment, who the Administrator believes mayhave information necessary for the purposes set forth in section 114(a), or who is subject
to any requirement

of the CAA (other than certain provisions under Title II), to provide EPA with infbrmation
for the following purposes: 1. Developing

or assisting
in the development

of the following: a. State implementation plans ( 110 and 111(d)); b. New Source Performance Standards (NSPS)

(‘ 111); c. National Emissions Standards for Hazardous Air Pollutants (NES[-IAP)

( 112); d. Solid waste combustion

or other related solid waste regulations

(

1 29) 2. Determining whether any person

is in violation
of any standards
or requirements developed under the authorities cited above; or 3. Carrying out any provision under the CAA (except certain provisions under Title 11). The Administrator may require that those persons identified above do the following

sothe Administrator may have the information necessary for the items listed in #1-3: • establish and maintain records; • make reports;• install, use,and maintain monitoring equipment, and use audit procedures,

or methods; • sampleemissions(in accordance with such procedures

or methods,

at such locations,

at such intervals, during such periods, and in such manner
asthe Administrator shall prescribe); • keep records on control equipment parameters, production variables

or other indirect data when direct monitoring
of emissions

is impractical; • submit compliance certifications

in accordance with section

1 14(a)(3); and • provide such other information

asthe Administrator may reasonably require.DIRECTIONS: X All recipients must complete and return this survey byApril10,2013.XPleaseidentifyclearlyanyresponse(s)thatyouconsidertobeconfidentiaLbusiness information (CBI). Any responses not so identified willbe included

ina publicly available database. Refer to Enclosures

3, 4, 5, and
6 for more information

onthetreatment
ofCBI andalist of information you may be asked to submit later to substantiate

aclaim of confidentiality.I)EFINITIONS:

For the purposes
of this ICR only, terms used have the meanings attributed

to them in 40 CFR 63.681.CONFIDENTiALBUSINESS INFORMATION
(CB I): Please indicate
ifanyCBI is included

in this survey response: ÜY NOFF-SITEWASTEAND RECOVERYOPERATIONS We believe that youOWfla facility that has Off-Site Waste and Recovery Operations.

If you believe that this survey does not pertain
to you, please indicate your reason below: The Off-Site Waste and Recovery Operations
are permanently shut down. Please also identify the date the Off-Site Waste and Recovery Operations wereshut down, what steps were taken to close the equipment

or stop operations, and if youstill have

a permit. No Off-Site Waste and Recovery Operations

at this facility. Please identify the operations

at the facility. b f)IL ‘47

/ ,)o7 M’T s O F’ #4Z45 /*t7i9A/T //l,i1SIfyourfacilitydoesnothaveOff-SiteWasteandRecoveryOperations,pleaserespondassooiias possible. We will review that information and respond
asto whether you need to complete anyother part of the survey.