INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

We Protect Hoosiers and Our Environment. 

Mitchell E. Daniels Jr. 100 North Senate Avenue 

Governor Indianapolis, Indiana 46204 

(317) 232-8603 

Thomas W. Easterly Toll Free (800) 451-6027 

Commissioner www.idem.IN.gov 

 Recycled Paper An Equal Opportunity Employer Please Recycle 

TO: Interested Parties / Applicant 

DATE: June 10, 2009

RE: Metal Finishing Co., Inc. / 097-25773-00396 

FROM: Matthew Stuckey, Branch Chief 

 Permits Branch 

 Office of Air Quality 

Notice of Decision: Approval - Effective Immediately 

Please be advised that on behalf of the Commissioner of the Department of Environmental Management, 

I have issued a decision regarding the enclosed matter. Pursuant to IC 13-15-5-3, this permit is effective 

immediately, unless a petition for stay of effectiveness is filed and granted according to IC 13-15-6-3, and 

may be revoked or modified in accordance with the provisions of IC 13-15-7-1.

If you wish to challenge this decision, IC 4-21.5-3 and IC 13-15-6-1 require that you file a petition for 

administrative review. This petition may include a request for stay of effectiveness and must be submitted 

to the Office of Environmental Adjudication, 100 North Senate Avenue, Government Center North, Suite 

N 501E, Indianapolis, IN 46204, within eighteen (18) calendar days of the mailing of this notice. The 

filing of a petition for administrative review is complete on the earliest of the following dates that apply to 

the filing: 

(1) the date the document is delivered to the Office of Environmental Adjudication (OEA); 

(2) the date of the postmark on the envelope containing the document, if the document is mailed to 

OEA by U.S. mail; or 

(3) The date on which the document is deposited with a private carrier, as shown by receipt issued 

by the carrier, if the document is sent to the OEA by private carrier. 

The petition must include facts demonstrating that you are either the applicant, a person aggrieved or 

adversely affected by the decision or otherwise entitled to review by law. Please identify the permit, 

decision, or other order for which you seek review by permit number, name of the applicant, location, date 

of this notice and all of the following: 

(1) the name and address of the person making the request; 

(2) the interest of the person making the request; 

(3) identification of any persons represented by the person making the request; 

(4) the reasons, with particularity, for the request; 

(5) the issues, with particularity, proposed for considerations at any hearing; and 

(6) identification of the terms and conditions which, in the judgment of the person making the 

request, would be appropriate in the case in question to satisfy the requirements of the law 

governing documents of the type issued by the Commissioner. 

If you have technical questions regarding the enclosed documents, please contact the Office of Air 

Quality, Permits Branch at (317) 233-0178. Callers from within Indiana may call toll-free at 1-800-451-

6027, ext. 3-0178. 

Enclosures 

FNPER.dot12/03/07

Metal Finishing Co., Inc. Page 2 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

TABLE OF CONTENTS 

A. SOURCE SUMMARY...............................................................................................................................4

A.1 General Information [326 IAC 2-5.1-3(c)][326 IAC 2-6.1-4(a)]

A.2 Emission Units and Pollution Control Equipment Summary

B. GENERAL CONDITIONS ........................................................................................................................5

B.1 Definitions [326 IAC 2-1.1-1]

B.2 Permit Term [326 IAC 2-6.1-7(a)][326 IAC 2-1.1-9.5][IC 13-15-3-6(a)]

B.3 Term of Conditions [326 IAC 2-1.1-9.5]

B.4 Enforceability

B.5 Severability

B.6 Property Rights or Exclusive Privilege

B.7 Duty to Provide Information

B.8 Certification

B.9 Annual Notification [326 IAC 2-6.1-5(a)(5)]

B.10 Preventive Maintenance Plan [326 IAC 1-6-3]

B.11 Prior Permits Superseded [326 IAC 2-1.1-9.5]

B.12 Termination of Right to Operate [326 IAC 2-6.1-7(a)]

B.13 Permit Renewal [326 IAC 2-6.1-7]

B.14 Permit Amendment or Revision [326 IAC 2-5.1-3(e)(3)][326 IAC 2-6.1-6]

B.15 Source Modification Requirement

B.16 Inspection and Entry [326 IAC 2-5.1-3(e)(4)(B)][326 IAC 2-6.1-5(a)(4)][IC 13-14-2-2] 

 [IC 13-17-3-2][IC 13-30-3-1]

B.17 Transfer of Ownership or Operational Control [326 IAC 2-6.1-6]

B.18 Annual Fee Payment [326 IAC 2-1.1-7]

B.19 Credible Evidence [326 IAC 1-1-6]

C. SOURCE OPERATION CONDITIONS..................................................................................................10

Emission Limitations and Standards [326 IAC 2-6.1-5(a)(1)]

C.1 Particulate Emission Limitations For Processes with Process Weight Rates 

 Less Than One Hundred (100) Pounds per Hour [326 IAC 6-3-2]

C.2 Permit Revocation [326 IAC 2-1.1-9]

C.3 Opacity [326 IAC 5-1]

C.4 Open Burning [326 IAC 4-1] [IC 13-17-9]

C.5 Incineration [326 IAC 4-2] [326 IAC 9-1-2]

C.6 Fugitive Dust Emissions [326 IAC 6-4]

C.7 Asbestos Abatement Projects [326 IAC 14-10] [326 IAC 18] [40 CFR 61, Subpart M]

Testing Requirements [326 IAC 2-6.1-5(a)(2)]

C.8 Performance Testing [326 IAC 3-6]

Compliance Requirements [326 IAC 2-1.1-11]

C.9 Compliance Requirements [326 IAC 2-1.1-11]

Compliance Monitoring Requirements [326 IAC 2-6.1-5(a)(2)]

C.10 Compliance Monitoring [326 IAC 2-1.1-11]

C.11 Monitoring Methods [326 IAC 3] [40 CFR 60] [40 CFR 63]

C.12 Instrument Specifications [326 IAC 2-1.1-11]

Corrective Actions and Response Steps

C.13 Response to Excursions or Exceedances

C.14 Actions Related to Noncompliance Demonstrated by a Stack Test
Metal Finishing Co., Inc. Page 3 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

Record Keeping and Reporting Requirements [326 IAC 2-6.1-5(a)(2)]

C.15 Malfunctions Report [326 IAC 1-6-2]

C.16 General Record Keeping Requirements [326 IAC 2-6.1-5]

C.17 General Reporting Requirements [326 IAC 2-1.1-11] [326 IAC 2-6.1-2] 

 [IC 13-14-1-13]

D.1. EMISSIONS UNIT OPERATION CONDITIONS.................................................................................16

Emission Limitations and Standards [326 IAC 2-6.1-5(a)(1)]

D.1.1 Particulate [326 IAC 6-3-2]

Compliance Determination Requirements

D.1.2 Particulate 

D.2. EMISSIONS UNIT OPERATION CONDITIONS.................................................................................16

Emission Limitations and Standards [326 IAC 2-6.1-5(a)(1)]

D.2.1 Particulate [326 IAC 6-2-4] 

E.1 NATIONAL EMISSIONS STATANDARDS FOR HAZARDOUS AIR POLLUTANTS (NESHAP)......18 

 E.1.1 General Provisions Relating to NESHAP WWWWWW [326 IAC 20-1-1][40 CFR 63, Subpart 

 A]

 E.1.2 Standards of Performance for Area Source Standards for Plating and Polishing Operations 

 [40 CFR Part 60, Subpart WWWWWW] 

E.2 NATIONAL EMISSIONS STATANDARDS FOR HAZARDOUS AIR POLLUTANTS (NESHAP)......19 

 E.2.1 General Provisions Relating to NESHAP N [326 IAC 20-1-1][40 CFR 63, Subpart A] 

 E.2.2 Standards of Performance for Area Source Standards for Chromium Emissions From Hard 

and Decorative Chromium Electroplating and Chromium Anodizing Tanks [40 CFR Part 60, 

Subpart N] 

Annual Notification ......................................................................................................................................20

Malfunction Report......................................................................................................................................21

Attachment A: 40 CFR 63 (National Emission Standards for Hazardous Air Pollutants for Source 

Categories), Subpart WWWWWW (Area Source Standards for Plating and Polishing Operations) 

Attachment B: 40 CFR 63 (National Emission Standards for Hazardous Air Pollutants for Source 

Categories), Subpart N (Chromium Emissions from Hard and Decorative Chromium Electroplating 

and Chromium Anodizing Tanks) 
Metal Finishing Co., Inc. Page 4 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION A SOURCE SUMMARY 

This permit is based on information requested by the Indiana Department of Environmental Management 

(IDEM), Office of Air Quality (OAQ). The information describing the source contained in conditions A.1 

and A.2 is descriptive information and does not constitute enforceable conditions. However, the 

Permittee should be aware that a physical change or a change in the method of operation that may 

render this descriptive information obsolete or inaccurate may trigger requirements for the Permittee to 

obtain additional permits or seek modification of this permit pursuant to 326 IAC 2, or change other 

applicable requirements presented in the permit application. 

A.1 General Information [326 IAC 2-5.1-3(c)][326 IAC 2-6.1-4(a)] 

The Permittee owns and operates a stationary decorative chrome plating operation. 

Source Address: 3901 E 29th Street, Indianapolis, Indiana 46218 

Mailing Address: 3901 E 29th Street, Indianapolis, IN 46218 

General Source Phone Number: 317-546-9004 

SIC Code: 3471 

County Location: Marion 

Source Location Status: Nonattainment for PM2.5 standard 

Attainment for all other criteria pollutants 

Source Status: Minor Source Operating Permit Program 

 Minor Source, under PSD and Emission Offset Rules 

Minor Source, Section 112 of the Clean Air Act 

Not 1 of 28 Source Categories 

A.2 Emission Units and Pollution Control Equipment Summary 

This stationary source consists of the following emission units and pollution control devices:

(a) One (1) totally enclosed pnuematic sand blasting cabinet, identified as SBC1, using 

chinese emory, using a built-in cyclone as contol and exhausting inside the building, 

constructed in July 1989. 

(b) One (1) nickel electroplanting operation consisting of one(1) nickel electroplating tank, 

identified as NT1, using a nickel sulfate, nickel chloride, and boric acid bath with maximum 

rectifier capacity of 1,000 amps, constructed in August 1984. This unit is an affected unit 

under NESHAP Subpart WWWWWW (Area Source Standards for Plating and Polishing 

Operations). 

(c) One (1) decorative chromium electroplating operation consisting of one (1) decorative 

chromium electroplating tank, identified as CT1, using a hexavalent chromium bath with 

maximum rectifier capacity of 2,000 amps and a maximum cumulative rectifier capacity of 

11,760,000 amp-hours, with wetting agent fume suppressant as chromium control, 

constructed in August 1984. This unit is an affected unit under NESHAP Subpart N 

(Chromium Emissions From Hard and Decorative Chromium Electroplating and 

Chromium Anodizing Tanks). 

(d) One (1) natural gas fueled boiler, identified as B1, with a maximum heat input capacity of 

0.0135 MMBtu/hr, constructed in August 1984.

(e) One (1) natural fueled heater, identified as H1, with a maximum heat input capacity of 13 

MMBtu/hr, constructed in August 1984. 
Metal Finishing Co., Inc. Page 5 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION B GENERAL CONDITIONS

B.1 Definitions [326 IAC 2-1.1-1] 

Terms in this permit shall have the definition assigned to such terms in the referenced regulation. 

In the absence of definitions in the referenced regulation, the applicable definitions found in the 

statutes or regulations (IC 13-11, 326 IAC 1-2 and 326 IAC 2-1.1-1) shall prevail. 

B.2 Permit Term [326 IAC 2-6.1-7(a)][326 IAC 2-1.1-9.5][IC 13-15-3-6(a)] 

(a) This permit, 097-25773-00396, is issued for a fixed term of ten (10) years from the 

issuance date of this permit, as determined in accordance with IC 4-21.5-3-5(f) and 

IC 13-15-5-3. Subsequent revisions, modifications, or amendments of this permit do not 

affect the expiration date of this permit. 

(b) If IDEM, OAQ, upon receiving a timely and complete renewal permit application, fails to 

issue or deny the permit renewal prior to the expiration date of this permit, this existing 

permit shall not expire and all terms and conditions shall continue in effect, until the 

renewal permit has been issued or denied. 

B.3 Term of Conditions [326 IAC 2-1.1-9.5] 

Notwithstanding the permit term of a permit to construct, a permit to operate, or a permit 

modification, any condition established in a permit issued pursuant to a permitting program 

approved in the state implementation plan shall remain in effect until: 

(a) the condition is modified in a subsequent permit action pursuant to Title I of the Clean Air 

Act; or 

(b) the emission unit to which the condition pertains permanently ceases operation. 

B.4 Enforceability 

Unless otherwise stated, all terms and conditions in this permit, including any provisions designed 

to limit the source's potential to emit, are enforceable by IDEM, the United States Environmental 

Protection Agency (U.S. EPA) and by citizens in accordance with the Clean Air Act. 

B.5 Severability 

The provisions of this permit are severable; a determination that any portion of this permit is 

invalid shall not affect the validity of the remainder of the permit. 

B.6 Property Rights or Exclusive Privilege 

This permit does not convey any property rights of any sort or any exclusive privilege. 

B.7 Duty to Provide Information 

(a) The Permittee shall furnish to IDEM, OAQ, within a reasonable time, any information that 

IDEM, OAQ may request in writing to determine whether cause exists for modifying, 

revoking and reissuing, or terminating this permit, or to determine compliance with this 

permit. The submittal by the Permittee does require the certification by an "authorized 

individual" as defined by 326 IAC 2-1.1-1(1). Upon request, the Permittee shall also 

furnish to IDEM, OAQ copies of records required to be kept by this permit. 

(b) For information furnished by the Permittee to IDEM, OAQ, the Permittee may include a 

claim of confidentiality in accordance with 326 IAC 17.1. When furnishing copies of 

requested records directly to U. S. EPA, the Permittee may assert a claim of 

confidentiality in accordance with 40 CFR 2, Subpart B. 
Metal Finishing Co., Inc. Page 6 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

B.8 Certification 

(a) Where specifically designated by this permit or required by an applicable requirement, 

any application form, report, or compliance certification submitted shall contain 

certification by an "authorized individual" of truth, accuracy, and completeness. This 

certification shall state that, based on information and belief formed after reasonable 

inquiry, the statements and information in the document are true, accurate, and complete. 

(b) One (1) certification shall be included, using the attached Certification Form, with each 

submittal requiring certification. One (1) certification may cover multiple forms in one (1) 

submittal. 

(c) An "authorized individual" is defined at 326 IAC 2-1.1-1(1). 

B.9 Annual Notification [326 IAC 2-6.1-5(a)(5)] 

(a) An annual notification shall be submitted by an authorized individual to the Office of Air 

Quality stating whether or not the source is in operation and in compliance with the terms 

and conditions contained in this permit. 

(b) The annual notice shall be submitted in the format attached no later than March 1 of each 

year to: 

Indiana Department of Environmental Management 

Compliance and Enforcement Branch, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, IN 46204-2251 

(c) The notification shall be considered timely if the date postmarked on the envelope or 

certified mail receipt, or affixed by the shipper on the private shipping receipt, is on or 

before the date it is due. If the document is submitted by any other means, it shall be 

considered timely if received by IDEM, OAQ on or before the date it is due. 

B.10 Preventive Maintenance Plan [326 IAC 1-6-3] 

(a) If required by specific condition(s) in Section D of this permit, the Permittee shall maintain 

and implement Preventive Maintenance Plans (PMPs) including the following information 

on each facility: 

(1) Identification of the individual(s) responsible for inspecting, maintaining, and 

repairing emission control devices; 

(2) A description of the items or conditions that will be inspected and the inspection 

schedule for said items or conditions; and 

(3) Identification and quantification of the replacement parts that will be maintained 

in inventory for quick replacement. 

(b) A copy of the PMPs shall be submitted to IDEM, OAQ upon request and within a 

reasonable time, and shall be subject to review and approval by IDEM, OAQ. IDEM, 

OAQ may require the Permittee to revise its PMPs whenever lack of proper maintenance 

causes or is the primary contributor to an exceedance of any limitation on emissions or 

potential to emit. The PMPs do not require the certification by an "authorized individual" 

as defined by 326 IAC 2-1.1-1(1). 
Metal Finishing Co., Inc. Page 7 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

(c) To the extent the Permittee is required by 40 CFR Part 60/63 to have an Operation 

Maintenance, and Monitoring (OMM) Plan for a unit, such Plan is deemed to satisfy the 

PMP requirements of 326 IAC 1-6-3 for that unit. 

B.11 Prior Permits Superseded [326 IAC 2-1.1-9.5] 

(a) All terms and conditions of permits established prior to 097-25773-00396 and issued 

pursuant to permitting programs approved into the state implementation plan have been 

either: 

(1) incorporated as originally stated, 

(2) revised, or 

(3) deleted. 

(b) All previous registrations and permits are superseded by this permit. 

B.12 Termination of Right to Operate [326 IAC 2-6.1-7(a)] 

The Permittee's right to operate this source terminates with the expiration of this permit unless a 

timely and complete renewal application is submitted at least one hundred twenty (120) days prior 

to the date of expiration of the source’s existing permit, consistent with 326 IAC 2-6.1-7. 

B.13 Permit Renewal [326 IAC 2-6.1-7] 

(a) The application for renewal shall be submitted using the application form or forms 

prescribed by IDEM, OAQ and shall include the information specified in 326 IAC 2-6.1-7. 

Such information shall be included in the application for each emission unit at this source. 

The renewal application does require the certification by an "authorized individual" as 

defined by 326 IAC 2-1.1-1(1). 

Request for renewal shall be submitted to: 

Indiana Department of Environmental Management 

Permit Administration and Support Section, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, Indiana 46204-2251 

 

(b) A timely renewal application is one that is: 

(1) Submitted at least one hundred twenty (120) days prior to the date of the 

expiration of this permit; and 

(2) If the date postmarked on the envelope or certified mail receipt, or affixed by the 

shipper on the private shipping receipt, is on or before the date it is due. If the 

document is submitted by any other means, it shall be considered timely if 

received by IDEM, OAQ on or before the date it is due. 

(c) If the Permittee submits a timely and complete application for renewal of this permit, the 

source’s failure to have a permit is not a violation of 326 IAC 2-6.1 until IDEM, OAQ takes 

final action on the renewal application, except that this protection shall cease to apply if, 

subsequent to the completeness determination, the Permittee fails to submit by the 

deadline specified in writing by IDEM, OAQ any additional information identified as being 

needed to process the application. 
Metal Finishing Co., Inc. Page 8 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

B.14 Permit Amendment or Revision [326 IAC 2-5.1-3(e)(3)][326 IAC 2-6.1-6] 

(a) Permit amendments and revisions are governed by the requirements of 326 IAC 2-6.1-6 

whenever the Permittee seeks to amend or modify this permit. 

(b) Any application requesting an amendment or modification of this permit shall be 

submitted to: 

Indiana Department of Environmental Management 

Permit Administration and Support Section, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, Indiana 46204-2251 

 

Any such application shall be certified by an "authorized individual" as defined by 

326 IAC 2-1.1-1(1). 

(c) The Permittee shall notify the OAQ within thirty (30) calendar days of implementing a 

notice-only change. [326 IAC 2-6.1-6(d)] 

B.15 Source Modification Requirement 

A modification, construction, or reconstruction is governed by the requirements of 326 IAC 2. 

B.16 Inspection and Entry 

[326 IAC 2-5.1-3(e)(4)(B)][326 IAC 2-6.1-5(a)(4)][IC 13-14-2-2][IC 13-17-3-2][IC 13-30-3-1] 

Upon presentation of proper identification cards, credentials, and other documents as may be 

required by law, and subject to the Permittee’s right under all applicable laws and regulations to 

assert that the information collected by the agency is confidential and entitled to be treated as 

such, the Permittee shall allow IDEM, OAQ, U.S. EPA, or an authorized representative to perform 

the following: 

(a) Enter upon the Permittee's premises where a permitted source is located, or emissions 

related activity is conducted, or where records must be kept under the conditions of this 

permit; 

(b) As authorized by the Clean Air Act, IC 13-14-2-2, IC 13-17-3-2, and IC 13-30-3-1, have 

access to and copy, at reasonable times, any records that must be kept under the 

conditions of this permit; 

(c) As authorized by the Clean Air Act, IC 13-14-2-2, IC 13-17-3-2, and IC 13-30-3-1, 

inspect, at reasonable times, any facilities, equipment (including monitoring and air 

pollution control equipment), practices, or operations regulated or required under this 

permit; 

(d) As authorized by the Clean Air Act, IC 13-14-2-2, IC 13-17-3-2, and IC 13-30-3-1, sample 

or monitor, at reasonable times, substances or parameters for the purpose of assuring 

compliance with this permit or applicable requirements; and 

(e) As authorized by the Clean Air Act, IC 13-14-2-2, IC 13-17-3-2, and IC 13-30-3-1, utilize 

any photographic, recording, testing, monitoring, or other equipment for the purpose of 

assuring compliance with this permit or applicable requirements. 

B.17 Transfer of Ownership or Operational Control [326 IAC 2-6.1-6] 

(a) The Permittee must comply with the requirements of 326 IAC 2-6.1-6 whenever the 

Permittee seeks to change the ownership or operational control of the source and no 

other change in the permit is necessary. 
Metal Finishing Co., Inc. Page 9 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

(b) Any application requesting a change in the ownership or operational control of the source 

shall contain a written agreement containing a specific date for transfer of permit 

responsibility, coverage and liability between the current and new Permittee. The 

application shall be submitted to: 

Indiana Department of Environmental Management 

Permit Administration and Support Section, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, Indiana 46204-2251 

The application which shall be submitted by the Permittee does require the certification 

by an "authorized individual" as defined by 326 IAC 2-1.1-1(1). 

(c) The Permittee may implement notice-only changes addressed in the request for a noticeonly change immediately upon submittal of the request. [326 IAC 2-6.1-6(d)(3)] 

B.18 Annual Fee Payment [326 IAC 2-1.1-7] 

(a) The Permittee shall pay annual fees due within thirty (30) calendar days of receipt of a bill 

from IDEM, OAQ,. 

(b) The Permittee may call the following telephone numbers: 1-800-451-6027 or 

317-233-4230 (ask for OAQ, Billing, Licensing, and Training Section), to determine the 

appropriate permit fee. 

B.19 Credible Evidence [326 IAC 1-1-6] 

For the purpose of submitting compliance certifications or establishing whether or not the 

Permittee has violated or is in violation of any condition of this permit, nothing in this permit shall 

preclude the use, including the exclusive use, of any credible evidence or information relevant to 

whether the Permittee would have been in compliance with the condition of this permit if the 

appropriate performance or compliance test or procedure had been performed. 
Metal Finishing Co., Inc. Page 10 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION C SOURCE OPERATION CONDITIONS 

Entire Source 

Emission Limitations and Standards [326 IAC 2-6.1-5(a)(1)] 

C.1 Particulate Emission Limitations For Processes with Process Weight Rates Less Than One 

Hundred (100) Pounds per Hour [326 IAC 6-3-2] 

Pursuant to 326 IAC 6-3-2(e)(2), particulate emissions from any process not exempt under 

326 IAC 6-3-1(b) or (c) which has a maximum process weight rate less than 100 pounds per hour 

and the methods in 326 IAC 6-3-2(b) through (d) do not apply shall not exceed 0.551 pounds per 

hour. 

C.2 Permit Revocation [326 IAC 2-1.1-9] 

Pursuant to 326 IAC 2-1.1-9 (Revocation of Permits), this permit to operate may be revoked for 

any of the following causes: 

(a) Violation of any conditions of this permit. 

(b) Failure to disclose all the relevant facts, or misrepresentation in obtaining this permit. 

(c) Changes in regulatory requirements that mandate either a temporary or permanent 

reduction of discharge of contaminants. However, the amendment of appropriate 

sections of this permit shall not require revocation of this permit. 

(d) Noncompliance with orders issued pursuant to 326 IAC 1-5 (Episode Alert Levels) to 

reduce emissions during an air pollution episode. 

(e) For any cause which establishes in the judgment of IDEM, the fact that continuance of 

this permit is not consistent with purposes of this article. 

C.3 Opacity [326 IAC 5-1] 

Pursuant to 326 IAC 5-1-2 (Opacity Limitations), except as provided in 326 IAC 5-1-3 (Temporary 

Alternative Opacity Limitations), opacity shall meet the following, unless otherwise stated in this 

permit: 

(a) Opacity shall not exceed an average of thirty percent (30%) in any one (1) six (6) minute 

averaging period as determined in 326 IAC 5-1-4. 

(b) Opacity shall not exceed sixty percent (60%) for more than a cumulative total of fifteen 

(15) minutes (sixty (60) readings as measured according to 40 CFR 60, Appendix A, 

Method 9 or fifteen (15) one (1) minute nonoverlapping integrated averages for a 

continuous opacity monitor) in a six (6) hour period. 

C.4 Open Burning [326 IAC 4-1] [IC 13-17-9] 

The Permittee shall not open burn any material except as provided in 326 IAC 4-1-3, 

326 IAC 4-1-4 or 326 IAC 4-1-6. The previous sentence notwithstanding, the Permittee may 

open burn in accordance with an open burning approval issued by the Commissioner under 

326 IAC 4-1-4.1.

C.5 Incineration [326 IAC 4-2] [326 IAC 9-1-2] 

The Permittee shall not operate an incinerator or incinerate any waste or refuse except as 

provided in 326 IAC 4-2 and 326 IAC 9-1-2.
Metal Finishing Co., Inc. Page 11 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

C.6 Fugitive Dust Emissions [326 IAC 6-4] 

The Permittee shall not allow fugitive dust to escape beyond the property line or boundaries of 

the property, right-of-way, or easement on which the source is located, in a manner that would 

violate 326 IAC 6-4 (Fugitive Dust Emissions). 

C.7 Asbestos Abatement Projects [326 IAC 14-10] [326 IAC 18] [40 CFR 61, Subpart M] 

(a) Notification requirements apply to each owner or operator. If the combined amount of 

regulated asbestos containing material (RACM) to be stripped, removed or disturbed is at 

least 260 linear feet on pipes or 160 square feet on other facility components, or at least 

thirty-five (35) cubic feet on all facility components, then the notification requirements of 

326 IAC 14-10-3 are mandatory. All demolition projects require notification whether or 

not asbestos is present. 

(b) The Permittee shall ensure that a written notification is sent on a form provided by the 

Commissioner at least ten (10) working days before asbestos stripping or removal work 

or before demolition begins, per 326 IAC 14-10-3, and shall update such notice as 

necessary, including, but not limited to the following: 

(1) When the amount of affected asbestos containing material increases or 

decreases by at least twenty percent (20%); or 

(2) If there is a change in the following: 

(A) Asbestos removal or demolition start date; 

(B) Removal or demolition contractor; or 

(C) Waste disposal site. 

(c) The Permittee shall ensure that the notice is postmarked or delivered according to the 

guidelines set forth in 326 IAC 14-10-3(2). 

(d) The notice to be submitted shall include the information enumerated in 

326 IAC 14-10-3(3). 

All required notifications shall be submitted to: 

Indiana Department of Environmental Management 

Compliance and Enforcement Branch, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, Indiana 46204-2251 

The notice shall include a signed certification from the owner or operator that the 

information provided in this notification is correct and that only Indiana licensed workers 

and project supervisors will be used to implement the asbestos removal project. The 

notifications do not require a certification by an "authorized individual" as defined by 

326 IAC 2-1.1-1(1). 

(e) Procedures for Asbestos Emission Control 

The Permittee shall comply with the applicable emission control procedures in 

326 IAC 14-10-4 and 40 CFR 61.145(c). Per 326 IAC 14-10-1, emission control 

requirements are applicable for any removal or disturbance of RACM greater than three 

(3) linear feet on pipes or three (3) square feet on any other facility components or a total 

of at least 0.75 cubic feet on all facility components. 
Metal Finishing Co., Inc. Page 12 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

(f) Demolition and Renovation 

The Permittee shall thoroughly inspect the affected facility or part of the facility where the 

demolition or renovation will occur for the presence of asbestos pursuant to 

40 CFR 61.145(a). 

(g) Indiana Licensed Asbestos Inspector 

The Permittee shall comply with 326 IAC 14-10-1(a) that requires the owner or operator, 

prior to a renovation/demolition, to use an Indiana Licensed Asbestos Inspector to 

thoroughly inspect the affected portion of the facility for the presence of asbestos. The 

requirement to use an Indiana Licensed Asbestos inspector is not federally enforceable. 

 

Testing Requirements [326 IAC 2-6.1-5(a)(2)] 

C.8 Performance Testing [326 IAC 3-6] 

(a) All testing shall be performed according to the provisions of 326 IAC 3-6 (Source 

Sampling Procedures), except as provided elsewhere in this permit, utilizing any 

applicable procedures and analysis methods specified in 40 CFR 51, 40 CFR 60, 

40 CFR 61, 40 CFR 63, 40 CFR 75, or other procedures approved by IDEM, OAQ. 

A test protocol, except as provided elsewhere in this permit, shall be submitted to: 

Indiana Department of Environmental Management 

Compliance and Enforcement Branch, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, Indiana 46204-2251 

no later than thirty-five (35) days prior to the intended test date. The protocol submitted 

by the Permittee does not require certification by an "authorized individual" as defined by 

326 IAC 2-1.1-1(1). 

(b) The Permittee shall notify IDEM, OAQ of the actual test date at least fourteen (14) days 

prior to the actual test date. The notification submitted by the Permittee does not require 

certification by an "authorized individual" as defined by 326 IAC 2-1.1-1(1). 

(c) Pursuant to 326 IAC 3-6-4(b), all test reports must be received by IDEM, OAQ not later 

than forty-five (45) days after the completion of the testing. An extension may be granted 

by IDEM, OAQ if the Permittee submits to IDEM, OAQ a reasonable written explanation 

not later than five (5) days prior to the end of the initial forty-five (45) day period. 

Compliance Requirements [326 IAC 2-1.1-11] 

C.9 Compliance Requirements [326 IAC 2-1.1-11] 

The commissioner may require stack testing, monitoring, or reporting at any time to assure 

compliance with all applicable requirements by issuing an order under 326 IAC 2-1.1-11. Any 

monitoring or testing shall be performed in accordance with 326 IAC 3 or other methods approved 

by the commissioner or the U. S. EPA. 

Compliance Monitoring Requirements [326 IAC 2-6.1-5(a)(2)] 

C.10 Compliance Monitoring [326 IAC 2-1.1-11] 

Compliance with applicable requirements shall be documented as required by this permit. The 

Permittee shall be responsible for installing any necessary equipment and initiating any required 
Metal Finishing Co., Inc. Page 13 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

monitoring related to that equipment. All monitoring and record keeping requirements not already 

legally required shall be implemented when operation begins. 

C.11 Monitoring Methods [326 IAC 3] [40 CFR 60] [40 CFR 63] 

Any monitoring or testing required by Section D of this permit shall be performed according to the 

provisions of 326 IAC 3, 40 CFR 60, Appendix A, 40 CFR 60, Appendix B, 40 CFR 63, or other 

approved methods as specified in this permit. 

C.12 Instrument Specifications [326 IAC 2-1.1-11] 

(a) When required by any condition of this permit, an analog instrument used to measure a 

parameter related to the operation of an air pollution control device shall have a scale 

such that the expected maximum reading for the normal range shall be no less than 

twenty percent (20%) of full scale. 

(b) The Permittee may request that the IDEM, OAQ approve the use of an instrument that 

does not meet the above specifications provided the Permittee can demonstrate that an 

alternative instrument specification will adequately ensure compliance with permit 

conditions requiring the measurement of the parameters. 

Corrective Actions and Response Steps 

C.13 Response to Excursions or Exceedances

(a) Upon detecting an excursion or exceedance, the Permittee shall restore operation of the 

emissions unit (including any control device and associated capture system) to its normal 

or usual manner of operation as expeditiously as practicable in accordance with good air 

pollution control practices for minimizing emissions. 

(b) The response shall include minimizing the period of any startup, shutdown or malfunction 

and taking any necessary corrective actions to restore normal operation and prevent the 

likely recurrence of the cause of an excursion or exceedance (other than those caused by 

excused startup or shutdown conditions). Corrective actions may include, but are not 

limited to, the following: 

(1) initial inspection and evaluation; 

(2) recording that operations returned to normal without operator action (such as 

through response by a computerized distribution control system); or 

(3) any necessary follow-up actions to return operation to within the indicator range, 

designated condition, or below the applicable emission limitation or standard, as 

applicable. 

(c) A determination of whether the Permittee has used acceptable procedures in response to 

an excursion or exceedance will be based on information available, which may include, 

but is not limited to, the following: 

(1) monitoring results; 

(2) review of operation and maintenance procedures and records; and/or 

(3) inspection of the control device, associated capture system, and the process. 

(d) Failure to take reasonable response steps shall be considered a deviation from the 

permit. 
Metal Finishing Co., Inc. Page 14 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

(e) The Permittee shall maintain the following records: 

(1) monitoring data; 

(2) monitor performance data, if applicable; and 

(3) corrective actions taken. 

C.14 Actions Related to Noncompliance Demonstrated by a Stack Test 

(a) When the results of a stack test performed in conformance with Section C - Performance 

Testing, of this permit exceed the level specified in any condition of this permit, the 

Permittee shall take appropriate response actions. The Permittee shall submit a 

description of these response actions to IDEM, OAQ, within thirty (30) days of receipt of 

the test results. The Permittee shall take appropriate action to minimize excess 

emissions from the affected facility while the response actions are being implemented. 

(b) A retest to demonstrate compliance shall be performed within one hundred twenty (120) 

days of receipt of the original test results. Should the Permittee demonstrate to IDEM, 

OAQ that retesting in one hundred twenty (120) days is not practicable, IDEM, OAQ may 

extend the retesting deadline. 

(c) IDEM, OAQ reserves the authority to take any actions allowed under law in response to 

noncompliant stack tests. 

The response action documents submitted pursuant to this condition do require the certification 

by an "authorized individual" as defined by 326 IAC 2-1.1-1(1). 

Record Keeping and Reporting Requirements [326 IAC 2-6.1-5(a)(2)] 

C.15 Malfunctions Report [326 IAC 1-6-2] 

Pursuant to 326 IAC 1-6-2 (Records; Notice of Malfunction): 

(a) A record of all malfunctions, including startups or shutdowns of any facility or emission 

control equipment, which result in violations of applicable air pollution control regulations 

or applicable emission limitations shall be kept and retained for a period of three (3) years 

and shall be made available to the Indiana Department of Environmental Management 

(IDEM), Office of Air Quality (OAQ) or appointed representative upon request. 

(b) When a malfunction of any facility or emission control equipment occurs which lasts more 

than one (1) hour, said condition shall be reported to OAQ, using the Malfunction Report 

Forms (2 pages). Notification shall be made by telephone or facsimile, as soon as 

practicable, but in no event later than four (4) daytime business hours after the beginning 

of said occurrence. 

(c) Failure to report a malfunction of any emission control equipment shall constitute a 

violation of 326 IAC 1-6, and any other applicable rules. Information of the scope and 

expected duration of the malfunction shall be provided, including the items specified in 

326 IAC 1-6-2(a)(1) through (6). 

(d) Malfunction is defined as any sudden, unavoidable failure of any air pollution control 

equipment, process, or combustion or process equipment to operate in a normal and 

usual manner. [326 IAC 1-2-39] 
Metal Finishing Co., Inc. Page 15 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

C.16 General Record Keeping Requirements [326 IAC 2-6.1-5] 

(a) Records of all required monitoring data, reports and support information required by this 

permit shall be retained for a period of at least five (5) years from the date of monitoring 

sample, measurement, report, or application. These records shall be physically present 

or electronically accessible at the source location for a minimum of three (3) years. The 

records may be stored elsewhere for the remaining two (2) years as long as they are 

available upon request. If the Commissioner makes a request for records to the 

Permittee, the Permittee shall furnish the records to the Commissioner within a 

reasonable time. 

(b) Unless otherwise specified in this permit, all record keeping requirements not already 

legally required shall be implemented within ninety (90) days of permit issuance or ninety 

(90) days of initial start-up, whichever is later. 

C.17 General Reporting Requirements [326 IAC 2-1.1-11] [326 IAC 2-6.1-2] [IC 13-14-1-13] 

(a) Reports required by conditions in Section D of this permit shall be submitted to: 

Indiana Department of Environmental Management 

Compliance and Enforcement Branch, Office of Air Quality 

100 North Senate Avenue 

MC 61-53 IGCN 1003 

Indianapolis, Indiana 46204-2251 

 (b) Unless otherwise specified in this permit, any notice, report, or other submission required 

by this permit shall be considered timely if the date postmarked on the envelope or 

certified mail receipt, or affixed by the shipper on the private shipping receipt, is on or 

before the date it is due. If the document is submitted by any other means, it shall be 

considered timely if received by IDEM, OAQ on or before the date it is due. 

(c) Unless otherwise specified in this permit, all reports required in Section D of this permit 

shall be submitted within thirty (30) days of the end of the reporting period. All reports do 

require the certification by an "authorized individual" as defined by 326 IAC 2-1.1-1(1). 

(d) Reporting periods are based on calendar years, unless otherwise specified in this permit. 

For the purpose of this permit “calendar year” means the twelve (12) month period from 

January 1 to December 31 inclusive. 
Metal Finishing Co., Inc. Page 16 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION D.1 EMISSIONS UNIT OPERATION CONDITIONS 

Emissions Unit Description: 

One (1) totally enclosed pnuematic sand blasting cabinet, identified as SBC1, using chinese emory, 

using a built-in cyclone as contol and exhausting inside the building, constructed in July 1989. 

(The information describing the process contained in this emissions unit description box is descriptive 

information and does not constitute enforceable conditions.) 

Emission Limitations and Standards [326 IAC 2-6.1-5(a)(1)] 

D.1.1 Particulate [326 IAC 6-3-2] 

Pursuant to 326 IAC 6-3-2(e)(2) (Particulate Emissions from Manufacturing Processes), 

particulate emissions from SBC1 shall not exceed 0.551 pounds per hour. 

The pounds per hour limitation was calculated using the following equation: 

Interpolation of the data for the process weight less than 100 lbs per hour shall be accomplished 

by use of the following equation: 

E = 0.551 lbs/hr where E = Particulate Emission Limitation in lbs/hr 

Compliance Determination Requirements 

D.1.2 Particulate 

In order to comply with Condition D.1.1, the built-in cyclone system must be in operation at all 

times the sand blasting cabinet is in operation. 
Metal Finishing Co., Inc. Page 17 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION D.2 EMISSIONS UNIT OPERATION CONDITIONS 

Emissions Unit Description: 

One (1) natural gas fueled boiler, identified as B1, with a maximum heat input capacity of 0.0135 

MMBtu/hr, constructed in August 1984. 

(The information describing the process contained in this emissions unit description box is descriptive 

information and does not constitute enforceable conditions.) 

Emission Limitations and Standards [326 IAC 2-6.1-5(a)(1)] 

D.2.1 Particulate [326 IAC 6-2-4] 

Pursuant to 326 IAC 6-2-4 (Particulate Limitations for Sources of Indirect Heating), the particulate 

emissions from the heater shall not exceed 0.6 pounds per MMBtu heat input. 

This limitation is based on the following equation: 

Pt shall not exceed 0.6. where Pt = pounds of particulate emitted per million Btu (lb/MMBtu) heat 

 
Metal Finishing Co., Inc. Page 18 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION E.1 NATIONAL EMISSIONS STANDARDS FOR HAZARDOUS AIR POLLUTANTS 

(NESHAP) 

Emissions Unit Description: 

One (1) nickel electroplanting operation consisting of one(1) nickel electroplating tank, identified as 

NT1, using a nickel sulfate, nickel chloride, and boric acid bath with maximum rectifier capacity of 

1,000 amps, constructed in August 1984. This unit is an affected unit under NESHAP Subpart 

WWWWWW (Area Source Standards for Plating and Polishing Operations). 

(The information describing the process contained in this emissions unit description box is descriptive 

information and does not constitute enforceable conditions.) 

E.1.1 General Provisions Relating to NESHAP WWWWWW [326 IAC 20-1-1][40 CFR 63, Subpart A] 

The provisions of 40 CFR 63, Subpart A - General Provisions, which are incorporated as 326 IAC 

20-1-1, apply to the facility described in this section except when otherwise specified in 40 CFR 63 

Subpart WWWWWW (Attachment A). 

E.1.2 Standards of Performance for Area Source Standards for Plating and Polishing Operations [40 

 CFR Part 60, Subpart WWWWWW] 

Pursuant to 40 CFR Part 60, Subpart WWWWWW, the Permittee shall comply with the provisions 

of Standards of Performance for Area Source Standards for Plating and Polishing Operations, 

which are incorporated by reference as 326 IAC 12 for the nickel electroplating tank (NT1) as 

specified as follows. 

(a) 40 CFR 63.11504 (a)(1)(i) 

(b) 40 CFR 63.11504 (a)(2)-(3) 

(c) 40 CFR 63.11505 (a)(1) 

(d) 40 CFR 63.11505 (c)(e) 

(e) 40 CFR 63.11506 (a) 

(f) 40 CFR 63.11507 (d)(1)-(2) 

(g) 40 CFR 63.11507 (g) 

(h) 40 CFR 63.11508 (a)-(b) 

(i) 40 CFR 63.11508 (c)(7) 

(j) 40 CFR 63.11508 (d)(1)-(3) 

(k) 40 CFR 63.11508 (d)(8) 

(l) 40 CFR 63.11509 (a)-(b) 

(m) 40 CFR 63.11509 (c)(6)-(7) 

(n) 40 CFR 63.11509 (d)-(f) 

(o) 40 CFR 63.11510 

(p) 40 CFR 63.11511 

(q) 40 CFR 63.11512 
Metal Finishing Co., Inc. Page 19 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

SECTION E.2 NATIONAL EMISSIONS STANDARDS FOR HAZARDOUS AIR POLLUTANTS 

(NESHAP) 

Emissions Unit Description: 

One (1) decorative chromium electroplating operation consisting of one (1) decorative chromium 

electroplating tank, identified as CT1, using a hexavalent chromium bath with maximum rectifier 

capacity of 2,000 amps and a maximum cumulative rectifier capacity of 11,760,000 amp-hours, with 

wetting agent fume suppressant as chromium control, constructed in August 1984. This unit is an 

affected unit under NESHAP Subpart N (Chromium Emissions From Hard and Decorative Chromium 

Electroplating and Chromium Anodizing Tanks). 

(The information describing the process contained in this emissions unit description box is descriptive 

information and does not constitute enforceable conditions.) 

E.2.1 General Provisions Relating to NESHAP N [326 IAC 20-1-1][40 CFR 63, Subpart A] 

The provisions of 40 CFR 63, Subpart A - General Provisions, which are incorporated as 326 IAC 

20-1-1, apply to the facility described in this section except when otherwise specified in 40 CFR 63 

Subpart N (Attachment B). 

E.2.2 Standards of Performance for Area Source Standards for Chromium Emissions From Hard and 

 Decorative Chromium Electroplating and Chromium Anodizing Tanks [40 CFR Part 60, Subpart 

 N] 

Pursuant to 40 CFR Part 60, Subpart N, the Permittee shall comply with the provisions of 

Standards of Performance for Chromium Emissions From Hard and Decorative Chromium 

Electroplating and Chromium Anodizing Tanks, which are incorporated by reference as 326 IAC 

12 for the chromium electroplating tank (CT1) as specified as follows. 

(a) 40 CFR 63.340 (a)-(c) 

(b) 40 CFR 63.340 (e) 

(c) 40 CFR 63.341 

(d) 40 CFR 63.342 (a)-(b)(1) 

(e) 40 CFR 63.342 (d)(1)-(2) 

(f) 40 CFR 63.342 (f)(1)-(3) 

(g) 40 CFR 63.342 (g) 

(h) 40 CFR 63.343 (a)(1)(i) 

(i) 40 CFR 63.343 (a)(3) 

(j) 40 CFR 63.343 (a)(6) 

(k) 40 CFR 63.343 (b)(2) 

(l) 40 CFR 63.343 (c)(5) 

(m) 40 CFR 63.346 (a)-(c) 

(n) 40 CFR 63.347 (a)-(c) 

(o) 40 CFR 63.347 (e)(1)-(2) 

(p) 40 CFR 63.347 (e)(4) 

(q) 40 CFR 63.347 (f) 

(r) 40 CFR 63.347 (h) 

(s) 40 CFR 63.348 
Metal Finishing Co., Inc. Page 20 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT 

OFFICE OF AIR QUALITY 

COMPLIANCE AND ENFORCEMENT BRANCH 

MINOR SOURCE OPERATING PERMIT 

ANNUAL NOTIFICATION

This form should be used to comply with the notification requirements under 326 IAC 2-6.1-5(a)(5). 

Company Name: Metal Finishing Co., Inc.

Address: 3901 E 29th Street

City: Indianapolis, Indiana 46218

Phone #: 317-546-9004

MSOP #: 097-25773-00396

I hereby certify that Metal Finishing Co., Inc. is :  still in operation. 

 no longer in operation. 

I hereby certify that Metal Finishing Co., Inc. is :  in compliance with the requirements of 

MSOP 097-25773-00396. 

 not in compliance with the requirements of 

MSOP 097-25773-00396. 

 

Authorized Individual (typed): 

Title: 

Signature: 

Date: 

If there are any conditions or requirements for which the source is not in compliance, provide a narrative 

description of how the source did or will achieve compliance and the date compliance was, or will be 

achieved. 

Noncompliance: 
Metal Finishing Co., Inc. Page 21 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

MALFUNCTION REPORT 

INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT 

OFFICE OF AIR QUALITY 

FAX NUMBER: (317) 233-6865 

This form should only be used to report malfunctions applicable to Rule 326 IAC 1-6

and to qualify for the exemption under 326 IAC 1-6-4.

THIS FACILITY MEETS THE APPLICABILITY REQUIREMENTS BECAUSE IT HAS POTENTIAL TO EMIT 25 TONS/YEAR 

PARTICULATE MATTER ?_____, 25 TONS/YEAR SULFUR DIOXIDE ?_____, 25 TONS/YEAR NITROGEN OXIDES?_____, 

25 TONS/YEAR VOC ?_____, 25 TONS/YEAR HYDROGEN SULFIDE ?_____, 25 TONS/YEAR TOTAL REDUCED SULFUR 

?_____, 25 TONS/YEAR REDUCED SULFUR COMPOUNDS ?_____, 25 TONS/YEAR FLUORIDES ?_____, 100 TONS/YEAR 

CARBON MONOXIDE ?_____, 10 TONS/YEAR ANY SINGLE HAZARDOUS AIR POLLUTANT ?_____, 25 TONS/YEAR ANY 

COMBINATION HAZARDOUS AIR POLLUTANT ?_____, 1 TON/YEAR LEAD OR LEAD COMPOUNDS MEASURED AS 

ELEMENTAL LEAD ?_____, OR IS A SOURCE LISTED UNDER 326 IAC 2-5.1-3(2) ?_____. EMISSIONS FROM 

MALFUNCTIONING CONTROL EQUIPMENT OR PROCESS EQUIPMENT CAUSED EMISSIONS IN EXCESS OF APPLICABLE 

LIMITATION ________. 

THIS MALFUNCTION RESULTED IN A VIOLATION OF: 326 IAC _______ OR, PERMIT CONDITION # _______ AND/OR 

PERMIT LIMIT OF _______________ 

THIS INCIDENT MEETS THE DEFINITION OF “MALFUNCTION” AS LISTED ON REVERSE SIDE ? Y N 

THIS MALFUNCTION IS OR WILL BE LONGER THAN THE ONE (1) HOUR REPORTING REQUIREMENT ? Y N 

COMPANY:_________________________________________________________PHONE NO. ( )___________________ 

LOCATION: (CITY AND COUNTY)_________________________________________________________________________ 

PERMIT NO. ________________ AFS PLANT ID: ________________ AFS POINT ID: ________________ INSP:__________ 

CONTROL/PROCESS DEVICE WHICH MALFUNCTIONED AND REASON:________________________________________ 

_____________________________________________________________________________________________________ 

DATE/TIME MALFUNCTION STARTED: _____/_____/ 20____ _________________________________________ AM / PM 

ESTIMATED HOURS OF OPERATION WITH MALFUNCTION CONDITION: _______________________________________ 

DATE/TIME CONTROL EQUIPMENT BACK-IN SERVICE______/______/ 20____ _______________ AM/PM 

TYPE OF POLLUTANTS EMITTED: TSP, PM-10, SO2, VOC, OTHER:________________________________________ 

ESTIMATED AMOUNT OF POLLUTANT EMITTED DURING MALFUNCTION: _______________________________________ 

______________________________________________________________________________________________________ 

MEASURES TAKEN TO MINIMIZE EMISSIONS:______________________________________________________________ 

___________________________________________________________________________________________________ 

REASONS WHY FACILITY CANNOT BE SHUTDOWN DURING REPAIRS: 

CONTINUED OPERATION REQUIRED TO PROVIDE ESSENTIAL* SERVICES:_____________________________________ 

CONTINUED OPERATION NECESSARY TO PREVENT INJURY TO PERSONS:_____________________________________ 

CONTINUED OPERATION NECESSARY TO PREVENT SEVERE DAMAGE TO EQUIPMENT:__________________________ 

INTERIM CONTROL MEASURES: (IF APPLICABLE)____________________________________________________________ 

_____________________________________________________________________________________________________ 

_____________________________________________________________________________________________________ 

MALFUNCTION REPORTED BY:__________________________________TITLE:___________________________ 

 (SIGNATURE IF FAXED) 

MALFUNCTION RECORDED BY:_______________________DATE:__________________TIME:__________________ 

*SEE PAGE 2 

PAGE 1 OF 2
Metal Finishing Co., Inc. Page 22 of 22 

Indianapolis, Indiana 097-25773-00396 

Permit Reviewer: Jillian Bertram 

Please note - This form should only be used to report malfunctions 

applicable to Rule 326 IAC 1-6 and to qualify for 

the exemption under 326 IAC 1-6-4. 

326 IAC 1-6-1 Applicability of rule 

Sec. 1. This rule applies to the owner or operator of any facility required to obtain a permit under 

326 IAC 2-5.1 or 326 IAC 2-6.1.

326 IAC 1-2-39 “Malfunction” definition 

Sec. 39. Any sudden, unavoidable failure of any air pollution control equipment, process, or 

combustion or process equipment to operate in a normal and usual manner. 

*Essential services are interpreted to mean those operations, such as, the providing of electricity by 

power plants. Continued operation solely for the economic benefit of the owner or operator shall not 

be sufficient reason why a facility cannot be shutdown during a control equipment shutdown. 

If this item is checked on the front, please explain rationale:

________________________________________________________________________ 

________________________________________________________________________ 

PAGE 2 OF 2
Minor Source Operating Permit 

OFFICE OF AIR QUALITY 

Metal Finishing Co., Inc. 

3901 E 29th Street 

Indianapolis, Indiana 46218 

Attachment A 

Title 40: Protection of Environment 

Part 63 - National Emission Standards for Hazardous Air 

Pollutants for Source Categories 

Subpart WWWWWW— Area Source Standards for Plating and 

Polishing Operations 

M097-25773-00396 
Metal Finishing Co., Inc. Page 2 of 18 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

Title 40: Protection of Environment

PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE 

CATEGORIES

Subpart WWWWWW—National Emission Standards for Hazardous Air Pollutants: Area 

Source Standards for Plating and Polishing Operations 

Source: 73 FR 37741, July 1, 2008, unless otherwise noted. 

Applicability and Compliance Dates 

§ 63.11504 Am I subject to this subpart? 

(a) You are subject to this subpart if you own or operate a plating and polishing facility that is an area source 

of hazardous air pollutant (HAP) emissions and meets the criteria specified in paragraphs (a)(1) through (3) 

of this section. 

(1) A plating and polishing facility is a plant site that is engaged in one or more of the processes listed in 

paragraphs (a)(1)(i) through (vi) of this section. 

(i) Electroplating other than chromium electroplating (i.e., non-chromium electroplating). 

(ii) Electroless or non-eletrolytic plating. 

(iii) Other non-electrolytic metal coating processes, such as chromate conversion coating, nickel acetate 

sealing, sodium dichromate sealing, and manganese phosphate coating; and thermal spraying. 

(iv) Dry mechanical polishing of finished metals and formed products after plating. 

(v) Electroforming. 

(vi) Electropolishing. 

(2) An area source of HAP emissions is any stationary source or group of stationary sources within a 

contiguous area under common control that does not have the potential to emit any single HAP at a rate of 

9.07 megagrams per year (Mg/yr) (10 tons per year (tpy)) or more and any combination of HAP at a rate of 

22.68 Mg/yr (25 tpy) or more. 

(3) Your plating and polishing facility uses or has emissions of compounds of one or more plating and 

polishing metal HAP, which means any compound of any of the following metals: cadmium, chromium, lead, 

manganese, and nickel, as defined in §63.11511, “What definitions apply to this subpart?” With the 

exception of lead, plating and polishing metal HAP also include any of these metals in the elemental form. 

(b) [Reserved] 

§ 63.11505 What parts of my plant does this subpart cover? 

(a) This subpart applies to each new or existing affected source, as specified in paragraphs (a)(1) through 

(3) of this section, at all times. A new source is defined in §63.11511, “What definitions apply to this 

subpart?” 

(1) Each tank that contains one or more of the plating and polishing metal HAP, as defined in §63.11511, 

“What definitions apply to this subpart?”, and is used for non-chromium electroplating; electroforming; 

electropolishing; electroless plating or other non-electrolytic metal coating operations, such as chromate 

conversion coating, nickel acetate sealing, sodium dichromate sealing, and manganese phosphate coating. 
Metal Finishing Co., Inc. Page 3 of 18 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

(2) Each thermal spraying operation that applies one or more of the plating and polishing metal HAP, as 

defined in §63.11511, “What definitions apply to this subpart?” 

(3) Each dry mechanical polishing operation that emits one or more of the plating and polishing metal HAP, 

as defined in §63.11511, “What definitions apply to this subpart?” 

(b) An affected source is existing if you commenced construction or reconstruction of the affected source on 

or before March 14, 2008. 

(c) An affected source is new if you commenced construction or reconstruction of the affected source after 

March 14, 2008. 

(d) This subpart does not apply to any of the process units or operations described in paragraphs (d)(1) 

through (6) of this section. 

(1) Process units that are subject to the requirements of 40 CFR part 63, subpart N (National Emission 

Standards for Chromium Emissions from Hard and Decorative Chromium Electroplating and Chromium 

Anodizing Tanks). 

(2) Research and development process units, as defined in §63.11511, “What definitions apply to this 

subpart?” 

(3) Process units that are used strictly for educational purposes. 

(4) Thermal spraying conducted to repair surfaces. 

(5) Dry mechanical polishing conducted to restore the original finish to a surface to apply to restoring the 

original finish. 

(6) Any plating or polishing process that does not use any material that contains cadmium, chromium, lead, 

or nickel in amounts of 0.1 percent or more by weight, or that contains manganese in amounts of 1.0 percent 

or more by weight, as reported on the Material Safety Data Sheet for the material. 

(e) You are exempt from the obligation to obtain a permit under 40 CFR part 70 or 40 CFR part 71, “Title V,” 

provided you are not otherwise required to obtain a permit under 40 CFR 70.3(a) or 40 CFR 71.3(a) for a 

reason other than your status as an area source under this subpart. Notwithstanding the previous sentence, 

you must continue to comply with the provisions of this subpart applicable to area sources. 

§ 63.11506 What are my compliance dates? 

(a) If you own or operate an existing affected source, you must achieve compliance with the applicable 

provisions of this subpart no later than July 1, 2010. 

(b) If you own or operate a new affected source for which the initial startup date is on or before July 1, 2008, 

you must achieve compliance with the provisions of this subpart no later than July 1, 2008. 

(c) If you own or operate a new affected source for which the initial startup date is after July 1, 2008, you 

must achieve compliance with the provisions of this subpart upon initial startup of your affected source. 

Standards and Compliance Requirements 

§ 63.11507 What are my standards and management practices? 

(a) If you own or operate an affected new or existing non-cyanide electroplating, electroforming, or 

electropolishing tank (hereafter referred to as an “electrolytic” process tank, as defined in §63.11511, “What 
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definitions apply to this subpart?”) that contains one or more of the plating and polishing metal HAP and 

operates at a pH of less than 12, you must comply with the requirements in paragraph (a)(1), (2), or (3) of 

this section, and implement the applicable management practices in paragraph (g) of this section, as 

practicable. 

(1) You must use a wetting agent/fume suppressant, as defined in §63.11511, “What definitions apply to this 

subpart?”, in the bath of the affected tank according to paragraphs (a)(1)(i) through (iii) of this section. 

(i) You must initially add the wetting agent/fume suppressant in the amounts recommended by the 

manufacturer for the specific type of electrolytic process. 

(ii) You must add wetting agent/fume suppressant in proportion to the other bath chemistry ingredients that 

are added to replenish the tank bath, as in the original make-up of the tank. 

(iii) If a wetting agent/fume suppressant is included in the electrolytic process bath chemicals used in the 

affected tank according to the manufacturer's instructions, it is not necessary to add additional wetting 

agent/fume suppressants to the tank to comply with this rule. 

(2) You must capture and exhaust emissions from the affected tank to any one of the following emission 

control devices: composite mesh pad, packed bed scrubber, or mesh pad mist eliminator, according to 

paragraphs (a)(2)(i) and (ii) of this section. 

(i) You must operate all capture and control devices according to the manufacturer's specifications and 

operating instructions. 

(ii) You must keep the manufacturer's specifications and operating instructions at the facility at all times in a 

location where they can be easily accessed by the operators. 

(3) You must cover the tank surface according to paragraph (a)(3)(i) or (ii) of this section. 

(i) For batch electrolytic process tanks, as defined in §63.11511, “What definitions apply to this subpart?”, 

you must use a tank cover, as defined in §63.11511, over all of the effective surface area of the tank for at 

least 95 percent of the electrolytic process operating time. 

(ii) For continuous electrolytic process tanks, as defined in §63.11511, “What definitions apply to this 

subpart?”, you must cover at least 75 percent of the surface of the tank, as defined in §63.11511, whenever 

the electrolytic process tank is in operation. 

(b) If you own or operate an affected new or existing “flash” or short-term electroplating tank, as defined in 

§63.11511, “What definitions apply to this subpart?”, that uses or emits one or more of the plating and 

polishing metal HAP, you must comply with the requirements specified in paragraph (b)(1) or (b)(2), and 

implement the applicable management practices in paragraph (g) of this section, as practicable. 

(1) You must limit short-term or “flash” electroplating to no more than 1 cumulative hour per day or 3 

cumulative minutes per hour of plating time. 

(2) You must use a tank cover, as defined in §63.11511, “What definitions apply to this subpart?”, for at least 

95 percent of the plating time. 

(c) If you own or operate an affected new or existing process tank that is used both for short-term 

electroplating and for electrolytic processing of longer duration (i.e., processing that does not meet the 

definition of short-term or flash electroplating) and contains one or more of the plating and polishing metal 

HAP, you must meet the requirements specified in paragraph (a) or (b) of this section, whichever apply to 

the process operation, and implement the applicable management practices in paragraph (g) of this section, 

as practicable. 
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(d) If you own or operate an affected new or existing electroplating tank that uses cyanide in the plating bath, 

operates at pH greater than or equal to 12, and contains one or more of the plating and polishing metal 

HAP, you must comply with the requirements in paragraphs (d)(1) and (2) of this section: 

(1) You must measure and record the pH of the tank upon start-up. No additional pH measurements are 

required. 

(2) You must implement the applicable management practices in paragraph (g) of this section, as 

practicable. 

(e) If you own or operate an affected new or existing dry mechanical polishing equipment that emits one or 

more of the plating and polishing metal HAP, you must operate a capture system that captures particulate 

matter (PM) emissions from the dry mechanical polishing process and transports the emissions to a 

cartridge, fabric, or high efficiency particulate air (HEPA) filter, according to paragraphs (e)(1) and (2) of this 

section. 

(1) You must operate all capture and control devices according to the manufacturer's specifications and 

operating instructions. 

(2) You must keep the manufacturer's specifications and operating instructions at the facility at all times in a 

location where they can be easily accessed by the operators. 

(f) If you own or operate an affected thermal spraying operation that applies one or more of the plating and 

polishing metal HAP, you must meet the applicable requirements specified in paragraphs (f)(1) through (3) 

of this section, and the applicable management practices in paragraph (g) of this section. 

(1) For existing permanent thermal spraying operations, you must operate a capture system that collects PM 

emissions from the thermal spraying process and transports the emissions to a water curtain, fabric filter, or 

HEPA filter, according to paragraphs (f)(1)(i) and (ii) of this section. 

(i) You must operate all capture and control devices according to the manufacturer's specifications and 

instructions. 

(ii) You must keep the manufacturer's operating instructions at the facility at all times in a location where 

they can be easily accessed by the operators. 

(2) For new permanent thermal spraying operations, you must operate a capture system that collects PM 

emissions from the thermal spraying process and transports the emissions to a fabric or HEPA filter, 

according to paragraphs (f)(2)(i) and (ii) of this section. 

(i) You must operate all capture and control devices according to the manufacturer's specifications and 

instructions. 

(ii) You must keep the manufacturer's operating instructions at the facility at all times in a location where 

they can be easily accessed by the operators. 

(3) For temporary thermal spraying operations, as defined in §63.11511 “What definitions apply to this 

subpart?”, you must meet the applicable requirements specified in paragraphs (f)(3)(i) and (ii) of this section. 

(i) You must document the amount of time the thermal spraying occurs each day, and where it is conducted. 

(ii) You must implement the applicable management practices specified in paragraph (g) of this section, as 

practicable. 
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(g) If you own or operate an affected new or existing plating and polishing process unit that contains, 

applies, or emits one or more of the plating and polishing metal HAP, you must implement the applicable 

management practices in paragraphs (g)(1) through (12) of this section, as practicable. 

(1) Minimize bath agitation when removing any parts processed in the tank, as practicable except when 

necessary to meet part quality requirements. 

(2) Maximize the draining of bath solution back into the tank, as practicable, by extending drip time when 

removing parts from the tank; using drain boards (also known as drip shields); or withdrawing parts slowly 

from the tank, as practicable. 

(3) Optimize the design of barrels, racks, and parts to minimize dragout of bath solution (such as by using 

slotted barrels and tilted racks, or by designing parts with flow-through holes to allow the tank solution to drip 

back into the tank), as practicable. 

(4) Use tank covers, if already owned and available at the facility, whenever practicable. 

(5) Minimize or reduce heating of process tanks, as practicable (e.g., when doing so would not interrupt 

production or adversely affect part quality). 

(6) Perform regular repair, maintenance, and preventive maintenance of racks, barrels, and other equipment 

associated with affected sources, as practicable. 

(7) Minimize bath contamination, such as through the prevention or quick recovery of dropped parts, use of 

distilled/de-ionized water, water filtration, pre-cleaning of parts to be plated, and thorough rinsing of pretreated parts to be plated, as practicable. 

(8) Maintain quality control of chemicals, and chemical and other bath ingredient concentrations in the tanks, 

as practicable. 

(9) Perform general good housekeeping, such as regular sweeping or vacuuming, if needed, and periodic 

washdowns, as practicable. 

(10) Minimize spills and overflow of tanks, as practicable. 

(11) Use squeegee rolls in continuous or reel-to-reel plating tanks, as practicable. 

(12) Perform regular inspections to identify leaks and other opportunities for pollution prevention. 

§ 63.11508 What are my compliance requirements? 

(a) If you own or operate an affected source, you must submit a Notification of Compliance Status in 

accordance with §63.11509(b) of “What are my notification, reporting, and recordkeeping requirements?” 

(b) You must be in compliance with the applicable management practices and equipment standards in this 

subpart at all times. 

(c) To demonstrate initial compliance, you must satisfy the requirements specified in paragraphs (c)(1) 

through (11) of this section. 

(1) If you own or operate an affected electroplating, electroforming, or electropolishing tank that contains one 

or more of the plating and polishing metal HAP and is subject to the requirements in §63.11507(a), “What 

are my standards and management practices?”, and you use a wetting agent/fume suppressant to comply 

with this subpart, you must demonstrate initial compliance according to paragraphs (c)(1)(i) through (iv) of 

this section. 
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(i) You must add wetting agent/fume suppressant to the bath of each affected tank according to 

manufacturer's specifications and instructions. 

(ii) You must state in your Notification of Compliance Status that you add wetting agent/fume suppressant to 

the bath according to manufacturer's specifications and instructions. 

(iii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iv) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(2) If you own or operate an affected electroplating, electroforming, or electropolishing tank that contains one 

or more of the plating and polishing metal HAP and is subject to the requirements in §63.11507(a), “What 

are my standards and management practices?”, and you use a control system, as defined in §63.11511, 

“What definitions apply to this subpart?”, to comply with this subpart, you must demonstrate initial 

compliance according to paragraphs (c)(2)(i) through (v) of this section. 

(i) You must install a control system designed to capture emissions from the affected tank and exhaust them 

to a composite mesh pad, packed bed scrubber, or mesh pad mist eliminator. 

(ii) You must state in your Notification of Compliance Status that you have installed the control system 

according to the manufacturer's specifications and instructions. 

(iii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iv) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(v) You must follow the manufacturer's specifications and operating instructions for the control systems at all 

times. 

(3) If you own or operate an affected batch electrolytic process tank, as defined in §63.11511, “What 

definitions apply to this subpart?”, that contains one or more of the plating and polishing metal HAP and 

which is subject to the requirements in §63.11507(a), “What are my standards and management practices?”, 

and you use a tank cover, as defined in §63.11511, to comply with this subpart, you must demonstrate initial 

compliance according to paragraphs (c)(3)(i) through (iv) of this section. 

(i) You must install a tank cover on the affected tank. 

(ii) You must state in your Notification of Compliance Status that you operate the tank with the cover in place 

at least 95 percent of the electrolytic process operating time. 

(iii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iv) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(4) If you own or operate an affected continuous electrolytic process tank, as defined in §63.11511, “What 

definitions apply to this subpart?”, that contains one or more of the plating and polishing metal HAP and is 

subject to the requirements in §63.11507(a), “What are my standards and management practices?”, and you 
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cover the tank surface to comply with this subpart, you must demonstrate initial compliance according to 

paragraphs (c)(4)(i) through (iv) of this section. 

(i) You must cover at least 75 percent of the surface area of the affected tank. 

(ii) You must state in your Notification of Compliance Status that you operate the tank with the surface cover 

in place whenever the continuous electrolytic process is in operation. 

(iii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iv) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(5) If you own or operate an affected flash or short-term electroplating tank that contains one or more of the 

plating and polishing metal HAP and is subject to the requirements in §63.11507(b), “What are my standards 

and management practices?”, and you comply with this subpart by limiting the plating time of the affected 

tank, you must demonstrate initial compliance according to paragraphs (c)(5)(i) through (iii) of this section. 

(i) You must state in your Notification of Compliance Status that you limit short-term or flash electroplating to 

no more than 1 cumulative hour per day, or 3 cumulative minutes per hour of plating time. 

(ii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iii) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(6) If you own or operate an affected flash or short-term electroplating tank that contains one or more of the 

plating and polishing metal HAP and is subject to the requirements in §63.11507(b), “What are my standards 

and management practices?”, and you comply by operating the affected tank with a cover, you must 

demonstrate initial compliance according to paragraphs (c)(6)(i) through (iv) of this section. 

(i) You must install a tank cover on the affected tank. 

(ii) You must state in your Notification of Compliance Status that you operate the tank with the cover in place 

at least 95 percent of the plating time. 

(iii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iv) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(7) If you own or operate an affected tank that contains one or more of the plating and polishing metal HAP, 

uses cyanide in the bath, and is subject to the management practices specified in §63.11507(d), “What are 

my standards and management practices?”, you must demonstrate initial compliance according to 

paragraphs (c)(7)(i) through (iii) of this section. 

(i) You must report in your Notification of Compliance Status the pH of the bath solution that was measured 

at start-up, according to the requirements of §63.11507(d)(1). 
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(ii) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 

(iii) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11490(g), “What are my standards and management practices?”, as 

practicable. 

(8) If you own or operate an affected dry mechanical polishing operation that emits one or more of the 

plating and polishing metal HAP and is subject to the requirements in §63.11507(e), “What are my standards 

and management practices?”, you must demonstrate initial compliance according to paragraphs (c)(8)(i) 

through (iii) of this section. 

(i) You must install a control system that is designed to capture PM emissions from the polishing operation 

and exhaust them to a cartridge, fabric, or HEPA filter. 

(ii) You must state in your Notification of Compliance Status that you have installed the control system 

according to the manufacturer's specifications and instructions. 

(iii) You must keep the manufacturer's operating instructions at the facility at all times in a location where 

they can be easily accessed by the operators. 

(9) If you own or operate an existing affected permanent thermal spraying operation that applies one or 

more of the plating and polishing metal HAP and is subject to the requirements in §63.11507(f)(1), “What are 

my standards and management practices?”, you must demonstrate initial compliance according to 

paragraphs (c)(9)(i) through (iii) of this section. 

(i) You must install a control system that is designed to capture PM emissions from the thermal spraying 

operation and exhaust them to a water curtain, fabric filter, or HEPA filter. 

(ii) You must state in your Notification of Compliance Status that you have installed and are operating the 

control system according to the manufacturer's specifications and instructions. 

(iii) You must keep the manufacturer's operating instructions at the facility at all times in a location where 

they can be easily accessed by the operators. 

(10) If you own or operate a new affected permanent thermal spraying operation that applies one or more of 

the plating and polishing metal HAP and is subject to the requirements in §63.11507(f)(2), “What are my 

standards and management practices?”, you must demonstrate initial compliance according to paragraphs 

(c)(10)(i) through (iii) of this section. 

(i) You must install and operate a control system that is designed to capture PM emissions from the thermal 

spraying operation and exhaust them to a fabric or HEPA filter. 

(ii) You must state in your Notification of Compliance Status that you have installed and operate the control 

system according to the manufacturer's specifications and instructions. 

(iii) You must keep the manufacturer's operating instructions at the facility at all times in a location where 

they can be easily accessed by the operators. 

(11) If you own or operate an affected temporary thermal spraying operation that applies one or more of the 

plating and polishing metal HAP and is subject to the requirements in §63.11507(f)(3), “What are my 

standards and management practices?”, you must demonstrate initial compliance according to paragraphs 

(c)(11)(i) and (ii) of this section. 

(i) You must implement the applicable management practices specified in §63.11507(g), “What are my 

standards and management practices?”, as practicable. 
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(ii) You must state in your Notification of Compliance Status that you have implemented the applicable 

management practices specified in §63.11507(g), “What are my standards and management practices?”, as 

practicable. 

(d) To demonstrate continuous compliance with the applicable management practices and equipment 

standards specified in this subpart, you must satisfy the requirements specified in paragraphs (d)(1) through 

(8) of this section. 

(1) You must always operate and maintain your affected source, including air pollution control equipment. 

(2) You must prepare an annual compliance certification according to the requirements specified in 

§63.11509(c), “Notification, Reporting, and Recordkeeping,” and keep it in a readily-accessible location for 

inspector review. 

(3) If you own or operate an affected electroplating, electroforming, or electropolishing tank that contains one 

or more of the plating and polishing metal HAP and is subject to the requirements in §63.11507(a), “What 

are my standards and management practices?”, and you use a wetting agent/fume suppressant to comply 

with this subpart, you must demonstrate continuous compliance according to paragraphs (d)(3)(i) through 

(iii) of this section. 

(i) You must record that you have added the wetting agent/fume suppressant to the tank bath in the original 

make-up of the tank. 

(ii) For tanks where the wetting agent/fume suppressant is a separate purchased ingredient from the other 

tank additives, you must demonstrate continuous compliance according to paragraphs (d)(3)(ii) (A) and (B) 

this section. 

(A) You must add wetting agent/fume suppressant in proportion to the other bath chemistry ingredients that 

are added to replenish the tank bath, as in the original make-up of the tank. 

(B) You must record each addition of wetting agent/fume suppressant to the tank bath. 

(iii) You must state in your annual compliance certification that you have added wetting agent/fume 

suppressant to the bath according to the manufacturer's specifications and instructions. 

(4) If you own or operate an affected electroplating, electroforming, or electropolishing tank that contains one 

or more of the plating and polishing metal HAP and is subject to the requirements in §63.11507(a), “What 

are my standards and management practices?”, and you use a control system to comply with this subpart; 

an affected dry mechanical polishing operation that is subject to §63.11507(e); or an affected thermal 

spraying operation that is subject to §63.11507(f)(1) or (2), you must demonstrate continuous compliance 

according to paragraphs (d)(4)(i) through (v) of this section. 

(i) You must operate and maintain the control system according to the manufacturer's specifications and 

instructions. 

(ii) Following any malfunction or failure of the capture or control devices to operate properly, you must take 

immediate corrective action to return the equipment to normal operation according to the manufacturer's 

specifications and operating instructions. 

(iii) You must state in your annual certification that you have operated and maintained the control system 

according to the manufacturer's specifications and instructions. 

(iv) You must record the results of all control system inspections, deviations from proper operation, and any 

corrective action taken. 

(v) You must keep the manufacturer's operating instructions at the facility at all times in a location where 

they can be easily accessed by the operators. 
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(5) If you own or operate an affected flash or short-term electroplating tank that contains one or more of the 

plating and polishing metal HAP and is subject to the requirements in §63.11507(b), “What are my standards 

and management practices?”, and you comply with this subpart by limiting the plating time for the affected 

tank, you must demonstrate continuous compliance according to paragraphs (d)(5)(i) through (iii) of this 

section. 

(i) You must limit short-term or flash electroplating to no more than 1 cumulative hour per day or 3 

cumulative minutes per hour of plating time. 

(ii) You must record the times that the affected tank is operated each day. 

(iii) You must state in your annual compliance certification that you have limited short-term or flash 

electroplating to no more than 1 cumulative hour per day or 3 cumulative minutes per hour of plating time. 

(6) If you own or operate an affected batch electrolytic process tank that contains one or more of the plating 

and polishing metal HAP and is subject to the requirements of §63.11507(a), “What are my standards and 

management practices?”, or a flash or short-term electroplating tank that contains one or more of the plating 

and polishing metal HAP and is subject to the requirements in §63.11507(b), and you comply by operating 

the affected tank with a cover, you must demonstrate continuous compliance according to paragraphs 

(d)(6)(i) through (iii) of this section. 

(i) You must operate the tank with the cover in place at least 95 percent of the electrolytic process operating 

time. 

(ii) You must record the times that the tank is operated and the times that the tank is covered on a daily 

basis. 

(iii) You must state in your annual certification that you have operated the tank with the cover in place at 

least 95 percent of the electrolytic process time. 

(7) If you own or operate an affected continuous electrolytic process tank that contains one or more of the 

plating and polishing metal HAP and is subject to the requirements in §63.11507(a), “What are my standards 

and management practices?”, and you cover your tanks to comply with this subpart, you must demonstrate 

continuous compliance according to paragraphs (d)(7)(i) and (ii) of this section. 

(i) You must operate the tank with at least 75 percent of the surface covered during all periods of electrolytic 

process operation. 

(ii) You must state in your annual certification that you have operated the tank with 75 percent of the surface 

covered during all periods of electrolytic process operation. 

(8) If you own or operate an affected tank or other operation that is subject to the management practices 

specified in §63.11507(g), “What are my standards and management practices?”, you must demonstrate 

continuous compliance according to paragraphs (d)(8)(i) and (ii) of this section. 

(i) You must implement the applicable management practices during all times that the affected tank or 

process is in operation. 

(ii) You must state in your annual compliance certification that you have implemented the applicable 

management practices, as practicable. 

§ 63.11509 What are my notification, reporting, and recordkeeping requirements? 

(a) If you own or operate an affected source, as defined in §63.11505(a), “What parts of my plant does this 

subpart cover?”, you must submit an Initial Notification in accordance with paragraphs (a)(1) through (4) of 

this section by the dates specified. 
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(1) The Initial Notification must include the information specified in §63.9(b)(2)(i) through (iv) of the General 

Provisions of this part. 

(2) The Initial Notification must include a description of the compliance method ( e.g. , use of wetting 

agent/fume suppressant) for each affected source. 

(3) If you start up your affected source on or before July 1, 2008, you must submit an Initial Notification not 

later than 120 calendar days after July 1, 2008. 

(4) If you start up your new affected source after July 1, 2008, you must submit an Initial Notification not later 

than 120 calendar days after you become subject to this subpart. 

(b) If you own or operate an affected source, you must submit a Notification of Compliance Status in 

accordance with paragraphs (b)(1) and (2) of this section. 

(1) The Notification of Compliance Status must be submitted before the close of business on the compliance 

date specified in §63.11506, “What are my compliance dates?” 

(2) The Notification of Compliance Status must include the items specified in paragraphs (b)(2)(i) through 

(iv) of this section. 

(i) List of affected sources and the plating and polishing metal HAP used in, or emitted by, those sources. 

(ii) Methods used to comply with the applicable management practices and equipment standards. 

(iii) Description of the capture and emission control systems used to comply with the applicable equipment 

standards. 

(iv) Statement by the owner or operator of the affected source as to whether the source is in compliance with 

the applicable standards or other requirements. 

(c) If you own or operate an affected source, you must prepare an annual certification of compliance report 

according to paragraphs (c)(1) through (7) of this section. These reports do not need to be submitted unless 

a deviation from the requirements of this subpart has occurred during the reporting year, in which case, the 

annual compliance report must be submitted along with the deviation report. 

(1) If you own or operate an affected electroplating, electroforming, or electropolishing tank that is subject to 

the requirements in §63.11507(a)(1), “What are my standards and management practices?”, you must state 

in your annual compliance certification that you have added wetting agent/fume suppressant to the bath 

according to the manufacturer's specifications and instructions. 

(2) If you own or operate any one of the affected sources listed in paragraphs (c)(2)(i) through (iii) of this 

section, you must state in your annual certification that you have operated and maintained the control 

system according to the manufacturer's specifications and instructions. 

(i) Electroplating, electroforming, or electropolishing tank that is subject to the requirements in §63.11507(a), 

“What are my standards and management practices?”, and you use a control system to comply with this 

subpart; 

(ii) Dry mechanical polishing operation that is subject to §63.11507(e); or 

(iii) Permanent thermal spraying operation that is subject to §63.11507(f)(1) or (2). 

(3) If you own or operate an affected flash or short-term electroplating tank that is subject to the 

requirements in §63.11507(b), “What are my standards and management practices?”, and you comply with 

this subpart by limiting the plating time of the affected tank, you must state in your annual compliance 
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certification that you have limited short-term or flash electroplating to no more than 1 cumulative hour per 

day or 3 cumulative minutes per hour of plating time. 

(4) If you own or operate an affected batch electrolytic process tank that is subject to the requirements of 

§63.11507(a) or a flash or short-term electroplating tank that is subject to the requirements in §63.11507(b), 

“What are my standards and management practices?”, and you comply by operating the affected tank with a 

cover, you must state in your annual certification that you have operated the tank with the cover in place at 

least 95 percent of the electrolytic process time. 

(5) If you own or operate an affected continuous electrolytic process tank that is subject to the requirements 

of §63.11507(a), “What are my standards and management practices?”, and you comply by operating the 

affected tank with a cover, you must state in your annual certification that you have covered at least 75 

percent of the surface area of the tank during all periods of electrolytic process operation. 

(6) If you own or operate an affected tank that is subject to the management practices specified in 

§63.11507(g), “What are my standards and management practices?”, you must state in your annual 

compliance certification that you have implemented the applicable management practices, as practicable. 

(7) Each annual compliance report must be prepared no later than January 31 of the year immediately 

following the reporting period and kept in a readily-accessible location for inspector review. If a deviation has 

occurred during the year, each annual compliance report must be submitted along with the deviation report, 

and postmarked or delivered no later than January 31 of the year immediately following the reporting period. 

(d) If you own or operate an affected source, and any deviations from the compliance requirements specified 

in this subpart occurred during the year, you must report the deviations, along with the corrective action 

taken, and submit this report to the delegated authority. 

(e) You must keep the records specified in paragraphs (e)(1) through (3) of this section. 

(1) A copy of any Initial Notification and Notification of Compliance Status that you submitted and all 

documentation supporting those notifications. 

(2) The records specified in §63.10(b)(2)(i) through (iii) and (xiv) of the General Provisions of this part. 

(3) The records required to show continuous compliance with each management practice and equipment 

standard that applies to you, as specified in §63.11508(d), “What are my compliance requirements?” 

(f) You must keep each record for a minimum of 5 years following the date of each occurrence, 

measurement, maintenance, corrective action, report, or record. You must keep each record onsite for at 

least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or 

record, according to §63.10(b)(1) of the General Provisions to part 63. You may keep the records offsite for 

the remaining 3 years. 

Other Requirements and Information 

§ 63.11510 What General Provisions apply to this subpart? 

If you own or operate a new or existing affected source, you must comply with the requirements of the 

General Provisions (40 CFR part 63, subpart A) according to Table 1 of this subpart. 

§ 63.11511 What definitions apply to this subpart? 

Terms used in this subpart are defined in this section. 

Batch electrolytic process tank means a tank used for an electrolytic process in which a part or group of 

parts, typically mounted on racks or placed in barrels, is placed in the tank and immersed in an electrolytic 
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process solution as a single unit (i.e., as a batch) for a predetermined period of time, during which none of 

the parts are removed from the tank and no other parts are added to the tank, and after which the part or 

parts are removed from the tank as a unit. 

Bath means the liquid contents of a tank that is used for electroplating, electroforming, electropolishing, or 

other metal coating processes at a plating and polishing facility. 

Capture system means the collection of components used to capture gases and fumes released from one or 

more emissions points and then convey the captured gas stream to a control device, as part of a complete 

control system. A capture system may include, but is not limited to, the following components as applicable 

to a given capture system design: duct intake devices, hoods, enclosures, ductwork, dampers, manifolds, 

plenums, and fans. 

Cartridge filter means a type of control device that uses perforated metal cartridges containing a pleated 

paper or non-woven fibrous filter media to remove PM from a gas stream by sieving and other mechanisms. 

Cartridge filters can be designed with single use cartridges, which are removed and disposed after reaching 

capacity, or continuous use cartridges, which typically are cleaned by means of a pulse-jet mechanism. 

Composite mesh pad means a type of control device similar to a mesh pad mist eliminator except that the 

device is designed with multiple pads in series that are woven with layers of material with varying fiber 

diameters, which produce a coalescing effect on the droplets or PM that impinge upon the pads. 

Continuous electrolytic process tank means a tank that uses an electrolytic process and in which a 

continuous metal strip or other type of continuous substrate is fed into and removed from the tank 

continuously. This process is also called reel-to-reel electrolytic plating. 

Control device means equipment that is part of a control system that collects and/or reduces the quantity of 

a pollutant that is emitted to the air. The control device receives emissions that are transported from the 

process by the capture system. 

Control system means the combination of a capture system and a control device. The capture system is 

designed to collect and transport air emissions from the affected source to the control device. The overall 

control efficiency of any control system is a combination of the ability of the system to capture the air 

emissions ( i.e. , the capture efficiency) and the control device efficiency. Consequently, it is important to 

achieve good capture to ensure good overall control efficiency. Capture devices that are known to provide 

high capture efficiencies include hoods, enclosures, or any other duct intake devices with ductwork, 

dampers, manifolds, plenums, or fans. 

Cyanide plating means plating processes performed in tanks that use cyanide as a major bath ingredient 

and that operate at pH of 12 or more, and use or emit any of the plating and polishing metal HAP, as defined 

in this section. Electroplating and electroforming are performed with or without cyanide. The cyanide in the 

bath works to dissolve the HAP metal added as a cyanide compound ( e.g. , cadmium cyanide) and creates 

free cyanide in solution, which helps to corrode the anode. These tanks are self-regulating to a pH of 12 due 

to the caustic nature of the cyanide bath chemistry. The cyanide in the bath is a major bath constituent and 

not an additive; however, the self-regulating chemistry of the bath causes the bath to act as if wetting 

agents/fume suppressants are being used and to ensure an optimum plating process. All cyanide plating 

baths at pH greater than or equal to 12 have cyanide-metal complexes in solution. The metal HAP to be 

plated is not emitted because it is either bound in the metal-cyanide complex or reduced at the cathode to 

elemental metal, and plated onto the immersed parts. Cyanide baths are not intentionally operated at pH 

less 12 since unfavorable plating conditions would occur in the tank, among other negative effects. 

Deviation means any instance in which an affected source or an owner or operator of such an affected 

source: 

(1) Fails to meet any requirement or obligation established by this rule including, but not limited to, any 

equipment standard (including emissions and operating limits), management practice, or operation and 

maintenance requirement; 
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(2) Fails to meet any term or condition that is adopted to implement an applicable requirement in this rule 

and that is included in the operating permit for any affected facility required to obtain such a permit; or 

(3) Fails to meet any equipment standard (including emission and operating limits), management standard, 

or operation and maintenance requirement in this rule during startup, shutdown, or malfunction. 

Dry mechanical polishing means a process used for removing defects from and smoothing the surface of 

finished metals and formed products after plating with any of the plating and polishing metal HAP, as defined 

in this section, using hard-faced abrasive wheels or belts and where no liquids or fluids are used to trap the 

removed metal particles. 

Electroforming means an electrolytic process using or emitting any of the plating and polishing metal HAP, 

as defined in this section, that is used for fabricating metal parts. This process is essentially the same as 

electroplating except that the plated substrate (mandrel) is removed, leaving only the metal plate. In 

electroforming, the metal plate is self-supporting and generally thicker than in electroplating. 

Electroless plating means a non-electrolytic process that uses or emits any of the plating and polishing metal 

HAP, as defined in this section, in which metallic ions in a plating bath or solution are reduced to form a 

metal coating at the surface of a catalytic substrate without the use of external electrical energy. Electroless 

plating is also called non-electrolytic plating. Examples include, but are not limited to, chromate conversion 

coating, nickel acetate sealing, sodium dichromate sealing, and manganese phosphate coating. 

Electrolytic plating processes means electroplating and electroforming that use or emit any of the plating and 

polishing metal HAP, as defined in this section, where metallic ions in a plating bath or solution are reduced 

to form a metal coating on the surface of parts and products using electrical energy. 

Electroplating means an electrolytic process that uses or emits any of the plating and polishing metal HAP, 

as defined in this section, in which metal ions in solution are reduced onto the surface of the work piece (the 

cathode) via an electrical current. The metal ions in the solution are usually replenished by the dissolution of 

metal from solid metal anodes fabricated of the same metal being plated, or by direct replenishment of the 

solution with metal salts or oxides; electroplating is also called electrolytic plating. 

Electropolishing means an electrolytic process that uses or emits any of the plating and polishing metal 

HAP, as defined in this section, in which a work piece is attached to an anode immersed in a bath, and the 

metal substrate is dissolved electrolytically, thereby removing the surface contaminant; electropolishing is 

also called electrolytic polishing. 

Fabric filter means a type of control device used for collecting PM by filtering a process exhaust stream 

through a filter or filter media. A fabric filter is also known as a baghouse. 

Flash electroplating means an electrolytic process that uses or emits any of the plating and polishing metal 

HAP, as defined in this section, and that is used no more than 3 cumulative minutes per hour or no more 

than 1 cumulative hour per day. 

General Provisions of this part (40 CFR part 63, subpart A) means the section of the Code of Federal 

Regulations (CFR) that addresses air pollution rules that apply to all HAP sources addressed in part 63, 

which includes the National Emission Standards for Hazardous Air Pollutants (NESHAP). 

HAP means hazardous air pollutant as defined from the list of 188 chemicals and compounds specified in 

the CAA Amendments of 1990; HAP are also called “air toxics.” The five plating and polishing metal HAP, as 

defined in this section, are on this list of 188 chemicals. 

High efficiency particulate air (HEPA) filter means a type of control device that uses a filter composed of a 

mat of randomly arranged fibers and is designed to remove at least 99.97 percent of airborne particles that 

are 0.3 micrometers or larger in diameter. 
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Mesh pad mist eliminator means a type of control device, consisting of layers of interlocked filaments 

densely packed between two supporting grids that remove liquid droplets and PM from the gas stream 

through inertial impaction and direct interception. 

Metal coating operation means any process performed either in a tank that contains liquids or as part of a 

spraying operation that applies one or more plating and polishing metal HAP, as defined in this section, to 

parts and products used in manufacturing. These processes include but are not limited to: Non-chromium 

electroplating; electroforming; electropolishing; other non-electrolytic metal coating processes, such as 

chromate conversion coating, nickel acetate sealing, sodium dichromate sealing, and manganese 

phosphate coating; and thermal spraying. 

New source means any affected source for which you commenced construction or reconstruction after 

March 14, 2008. 

Non-cyanide electrolytic plating and electropolishing processes means electroplating, electroforming, and 

electropolishing that uses or emits any of the plating and polishing metal HAP, as defined in this section, 

performed without cyanide in the tank. These processes do not use cyanide in the tank and operate at pH 

values less than 12. These processes use electricity and add or remove metals such as metal HAP from 

parts and products used in manufacturing. Both electroplating and electroforming can be performed with 

cyanide as well. 

Non-electrolytic plating means a process that uses or emits any of the plating and polishing metal HAP, as 

defined in this section, in which metallic ions in a plating bath or solution are reduced to form a metal coating 

at the surface of a catalytic substrate without the use of external electrical energy. Non-electrolytic plating is 

also called electroless plating. Examples include chromate conversion coating, nickel acetate sealing, 

sodium dichromate sealing, and manganese phosphate coating. 

Packed-bed scrubber means a type of control device that includes a single or double packed bed that 

contains packing media on which PM and droplets impinge and are removed from the gas stream. The 

packed-bed section of the scrubber is followed by a mist eliminator to remove any water entrained from the 

packed-bed section. 

Plating and polishing facility means a facility engaged in one or more of the following processes that uses or 

emits any of the plating and polishing metal HAP, as defined in this section: Electroplating processes other 

than chromium electroplating (i.e., non-chromium electroplating); electroless plating; other non-electrolytic 

metal coating processes, such as chromate conversion coating, nickel acetate sealing, sodium dichromate 

sealing, and manganese phosphate coating; thermal spraying; and the dry mechanical polishing of finished 

metals and formed products after plating. 

Plating and polishing metal HAP means any compound of any of the following metals: cadmium, chromium, 

lead, manganese, and nickel, or any of these metals in the elemental form, with the exception of lead. Any 

material that does not contain cadmium, chromium, lead, or nickel in amounts greater than or equal to 0.1 

percent by weight, and does not contain manganese in amounts greater than or equal to 1.0 percent by 

weight, as reported on the Material Safety Data Sheet for the material, is not considered to be a plating and 

polishing metal HAP. 

Plating and polishing process tanks means any tank in which a process is performed at an affected plating 

and polishing facility that uses or has the potential to emit any of the plating and polishing metal HAP, as 

defined in this section. The processes performed in plating and polishing tanks include the following: 

Electroplating processes other than chromium electroplating (i.e., non-chromium electroplating) performed in 

a tank; electroless plating; and non-electrolytic metal coating processes, such as chromate conversion 

coating, nickel acetate sealing, sodium dichromate sealing, and manganese phosphate coating; and 

electropolishing. This term does not include tanks containing solutions that are used to rinse or wash parts 

prior to placing the parts in a plating and polishing process tank, or subsequent to removing the parts from a 

plating and polishing process tank. This term also does not include thermal spraying or dry polishing with 

machines. 

PM means solid or particulate matter that is emitted into the air. 
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Research and development process unit means any process unit that is used for conducting research and 

development for new processes and products and is not used to manufacture products for commercial sale, 

except in a de minimis manner. 

Short-term plating means an electroplating process that uses or emits any of the plating and polishing metal 

HAP, as defined in this section, and that is used no more than 3 cumulative minutes per hour or 1 hour 

cumulative per day. 

Tank cover for batch process units means a solid structure made of an impervious material that is designed 

to cover the entire open surface of a tank or process unit that is used for plating or other metal coating 

processes. 

Tank cover for continuous process units, means a solid structure or combination of structures, made of an 

impervious material that is designed to cover at least 75 percent of the open surface of the tank or process 

unit that is used for continuous plating or other continuous metal coating processes. 

Temporary thermal spraying means a thermal spraying operation that uses or emits any of the plating and 

polishing metal HAP, as defined in this section, and that lasts no more than 1 hour in duration during any 

one day and is conducted in situ. Thermal spraying that is conducted in a dedicated thermal spray booth or 

structure is not considered to be temporary thermal spraying. 

Thermal spraying (also referred to as metal spraying or flame spraying) is a process that uses or emits any 

of the plating and polishing metal HAP, as defined in this section, in which a metallic coating is applied by 

projecting molten or semi-molten metal particles onto a substrate. Commonly-used thermal spraying 

methods include high velocity oxy-fuel (HVOF) spraying, flame spraying, electric arc spraying, plasma arc 

spraying, and detonation gun spraying. 

Water curtain means a type of control device that draws the exhaust stream through a continuous curtain of 

moving water to scrub out suspended PM. 

Wetting agent/fume suppressant means any chemical agent that reduces or suppresses fumes or mists from 

a plating and polishing tank by reducing the surface tension of the tank bath. 

§ 63.11512 Who implements and enforces this subpart? 

(a) This subpart can be implemented and enforced by EPA or a delegated authority such as your State, 

local, or tribal agency. If the EPA Administrator has delegated authority to your State, local, or tribal agency, 

then that agency, in addition to EPA, has the authority to implement and enforce this subpart. You should 

contact your EPA Regional Office to find out if implementation and enforcement of this subpart is delegated 

to your State, local, or tribal agency. 

(b) In delegating implementation and enforcement authority of this subpart to a State, local, or tribal agency 

under 40 CFR part 63, subpart E, the authorities contained in paragraph (c) of this section are retained by 

the EPA Administrator and are not transferred to the State, local, or tribal agency. 

(c) The authorities that cannot be delegated to State, local, or tribal agencies are specified in paragraphs 

(c)(1) through (5) of this section. 

(1) Approval of an alternative non-opacity emissions standard under 40 CFR 63.6(g), of the General 

Provisions of this part. 

(2) Approval of an alternative opacity emissions standard under §63.6(h)(9), of the General Provisions of this 

part. 

(3) Approval of a major change to test methods under §63.7(e)(2)(ii) and (f), of the General Provisions of this 

part. A “major change to test method” is defined in §63.90. 
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(4) Approval of a major change to monitoring under §63.8(f), of the General Provisions of this part. A “major 

change to monitoring” is defined in §63.90. 

(5) Approval of a major change to recordkeeping and reporting under §63.10(f), of the General Provisions of 

this part. A “major change to recordkeeping/reporting” is defined in §63.90. 

§ 63.11513 [Reserved] 

Table 1 to Subpart WWWWWW of Part 63. Applicability of General Provisions to Plating 

and Polishing Area Sources 

As required in §63.11510, “What General Provisions apply to this subpart?”, you must meet each 

requirement in the following table that applies to you. 

Citation Subject 

63.1 Applicability. 

63.2 Definitions. 

63.3 Units and abbreviations. 

63.4 Prohibited activities. 

63.6(a), (b)(1)–(b)(5), (c)(1), (c)(2), 

(c)(5), (j) 

Compliance with standards and maintenance 

requirements. 

63.10(a), (b)(1), (b)(2)(i)–(iii),(xiv), 

(b)(3), (d)(1), (f) 

Recordkeeping and reporting. 

63.12 State authority and delegations. 

63.13 Addresses of State air pollution control agencies 

and EPA regional offices. 

63.14 Incorporation by reference. 

63.15 Availability of information and confidentiality. 

1

Section 63.11505(e), “What parts of my plant does this subpart cover?”, exempts affected sources from the 

obligation to obtain title V operating permits. 
Minor Source Operating Permit 

OFFICE OF AIR QUALITY 

Metal Finishing Co., Inc. 

3901 E 29th Street 

Indianapolis, Indiana 46218 

Attachment B 

Title 40: Protection of Environment 

Part 63 - National Emission Standards for Hazardous Air 

Pollutants for Source Categories 

Subpart N— Chromium Emissions From Hard and Decorative 

Chromium Electroplating and Chromium Anodizing Tanks 

M097-25773-00396 
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Title 40: Protection of Environment

PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE 

CATEGORIES 

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Subpart N—National Emission Standards for Chromium Emissions From Hard and 

Decorative Chromium Electroplating and Chromium Anodizing Tanks 

Source: 60 FR 4963, Jan. 25, 1995, unless otherwise noted. 

§ 63.340 Applicability and designation of sources. 

(a) The affected source to which the provisions of this subpart apply is each chromium electroplating or 

chromium anodizing tank at facilities performing hard chromium electroplating, decorative chromium 

electroplating, or chromium anodizing. 

(b) Owners or operators of affected sources subject to the provisions of this subpart must also comply with 

the requirements of subpart A of this part, according to the applicability of subpart A of this part to such 

sources, as identified in Table 1 of this subpart. 

(c) Process tanks associated with a chromium electroplating or chromium anodizing process, but in which 

neither chromium electroplating nor chromium anodizing is taking place, are not subject to the provisions of 

this subpart. Examples of such tanks include, but are not limited to, rinse tanks, etching tanks, and cleaning 

tanks. Likewise, tanks that contain a chromium solution, but in which no electrolytic process occurs, are not 

subject to this subpart. An example of such a tank is a chrome conversion coating tank where no electrical 

current is applied. 

(d) Affected sources in which research and laboratory operations are performed are exempt from the 

provisions of this subpart when such operations are taking place. 

(e) If you are an owner or operator of an area source subject to this subpart, you are exempt from the 

obligation to obtain a permit under 40 CFR part 70 or 71, provided you are not required to obtain a permit 

under 40 CFR 70.3(a) or 71.3(a) for a reason other than your status as an area source under this subpart. 

Notwithstanding the previous sentence, you must continue to comply with the provisions of this subpart 

applicable to area sources. 

[60 FR 4963, Jan. 25, 1995, as amended at 61 FR 27787, June 3, 1996; 64 FR 69643, Dec. 14, 1999; 70 

FR 75345, Dec. 19, 2005] 

§ 63.341 Definitions and nomenclature. 

(a) Definitions. Terms used in this subpart are defined in the Act, in subpart A of this part, or in this section. 

For the purposes of subpart N of this part, if the same term is defined in subpart A of this part and in this 

section, it shall have the meaning given in this section. 

Add-on air pollution control device means equipment installed in the ventilation system of chromium 

electroplating and anodizing tanks for the purposes of collecting and containing chromium emissions from 

the tank(s). 

Air pollution control technique means any method, such as an add-on air pollution control device or a 

chemical fume suppressant, that is used to reduce chromium emissions from chromium electroplating and 

chromium anodizing tanks. 

Base metal means the metal or metal alloy that comprises the workpiece. 
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Bath component means the trade or brand name of each component(s) in trivalent chromium plating baths. 

For trivalent chromium baths, the bath composition is proprietary in most cases. Therefore, the trade or 

brand name for each component(s) can be used; however, the chemical name of the wetting agent 

contained in that component must be identified. 

Chemical fume suppressant means any chemical agent that reduces or suppresses fumes or mists at the 

surface of an electroplating or anodizing bath; another term for fume suppressant is mist suppressant. 

Chromic acid means the common name for chromium anhydride (CrO3). 

Chromium anodizing means the electrolytic process by which an oxide layer is produced on the surface of a 

base metal for functional purposes (e.g., corrosion resistance or electrical insulation) using a chromic acid 

solution. In chromium anodizing, the part to be anodized acts as the anode in the electrical circuit, and the 

chromic acid solution, with a concentration typically ranging from 50 to 100 grams per liter (g/L), serves as 

the electrolyte. 

Chromium anodizing tank means the receptacle or container along with the following accompanying internal 

and external components needed for chromium anodizing: rectifiers fitted with controls to allow for voltage 

adjustments, heat exchanger equipment, circulation pumps, and air agitation systems. 

Chromium electroplating tank means the receptacle or container along with the following internal and 

external components needed for chromium electroplating: Rectifiers, anodes, heat exchanger equipment, 

circulation pumps, and air agitation systems. 

Composite mesh-pad system means an add-on air pollution control device typically consisting of several 

mesh-pad stages. The purpose of the first stage is to remove large particles. Smaller particles are removed 

in the second stage, which consists of the composite mesh pad. A final stage may remove any reentrained 

particles not collected by the composite mesh pad. 

Decorative chromium electroplating means the process by which a thin layer of chromium (typically 0.003 to 

2.5 microns) is electrodeposited on a base metal, plastic, or undercoating to provide a bright surface with 

wear and tarnish resistance. In this process, the part(s) serves as the cathode in the electrolytic cell and the 

solution serves as the electrolyte. Typical current density applied during this process ranges from 540 to 

2,400 Amperes per square meter (A/m2

 ) for total plating times ranging between 0.5 to 5 minutes. 

Electroplating or anodizing bath means the electrolytic solution used as the conducting medium in which the 

flow of current is accompanied by movement of metal ions for the purposes of electroplating metal out of the 

solution onto a workpiece or for oxidizing the base material. 

Emission limitation means, for the purposes of this subpart, the concentration of total chromium allowed to 

be emitted expressed in milligrams per dry standard cubic meter (mg/dscm), or the allowable surface 

tension expressed in dynes per centimeter (dynes/cm). 

Enclosed hard chromium electroplating tank means a chromium electroplating tank that is equipped with an 

enclosing hood and ventilated at half the rate or less that of an open surface tank of the same surface area. 

Facility means the major or area source at which chromium electroplating or chromium anodizing is 

performed. 

Fiber-bed mist eliminator means an add-on air pollution control device that removes contaminants from a 

gas stream through the mechanisms of inertial impaction and Brownian diffusion. These devices are 

typically installed downstream of another control device, which serves to prevent plugging, and consist of 

one or more fiber beds. Each bed consists of a hollow cylinder formed from two concentric screens; the fiber 

between the screens may be fabricated from glass, ceramic plastic, or metal. 

Foam blanket means the type of chemical fume suppressant that generates a layer of foam across the 

surface of a solution when current is applied to that solution. 
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Fresh water means water, such as tap water, that has not been previously used in a process operation or, if 

the water has been recycled from a process operation, it has been treated and meets the effluent guidelines 

for chromium wastewater. 

Hard chromium electroplating or industrial chromium electroplating means a process by which a thick layer 

of chromium (typically 1.3 to 760 microns) is electrodeposited on a base material to provide a surface with 

functional properties such as wear resistance, a low coefficient of friction, hardness, and corrosion 

resistance. In this process, the part serves as the cathode in the electrolytic cell and the solution serves as 

the electrolyte. Hard chromium electroplating process is performed at current densities typically ranging from 

1,600 to 6,500 A/m2

 for total plating times ranging from 20 minutes to 36 hours depending upon the desired 

plate thickness. 

Hexavalent chromium means the form of chromium in a valence state of +6. 

Large, hard chromium electroplating facility means a facility that performs hard chromium electroplating and 

has a maximum cumulative potential rectifier capacity greater than or equal to 60 million ampere-hours per 

year (amp-hr/yr). 

Maximum cumulative potential rectifier capacity means the summation of the total installed rectifier capacity 

associated with the hard chromium electroplating tanks at a facility, expressed in amperes, multiplied by the 

maximum potential operating schedule of 8,400 hours per year and 0.7, which assumes that electrodes are 

energized 70 percent of the total operating time. The maximum potential operating schedule is based on 

operating 24 hours per day, 7 days per week, 50 weeks per year. 

Open surface hard chromium electroplating tank means a chromium electroplating tank that is ventilated at a 

rate consistent with good ventilation practices for open tanks. 

Operating parameter value means a minimum or maximum value established for a control device or process 

parameter which, if achieved by itself or in combination with one or more other operating parameter values, 

determines that an owner or operator is in continual compliance with the applicable emission limitation or 

standard. 

Packed-bed scrubber means an add-on air pollution control device consisting of a single or double packed 

bed that contains packing media on which the chromic acid droplets impinge. The packed-bed section of the 

scrubber is followed by a mist eliminator to remove any water entrained from the packed-bed section. 

Research or laboratory operation means an operation whose primary purpose is for research and 

development of new processes and products, that is conducted under the close supervision of technically 

trained personnel, and that is not involved in the manufacture of products for commercial sale in commerce, 

except in a de minimis manner. 

Small, hard chromium electroplating facility means a facility that performs hard chromium electroplating and 

has a maximum cumulative potential rectifier capacity less than 60 million amp-hr/yr. 

Stalagmometer means an instrument used to measure the surface tension of a solution by determining the 

mass of a drop of liquid by weighing a known number of drops or by counting the number of drops obtained 

from a given volume of liquid. 

Surface tension means the property, due to molecular forces, that exists in the surface film of all liquids and 

tends to prevent liquid from spreading. 

Tank operation means the time in which current and/or voltage is being applied to a chromium electroplating 

tank or a chromium anodizing tank. 

Tensiometer means an instrument used to measure the surface tension of a solution by determining the 

amount of force needed to pull a ring from the liquid surface. The amount of force is proportional to the 

surface tension. 
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Trivalent chromium means the form of chromium in a valence state of +3. 

Trivalent chromium process means the process used for electrodeposition of a thin layer of chromium onto a 

base material using a trivalent chromium solution instead of a chromic acid solution. 

Wetting agent means the type of chemical fume suppressant that reduces the surface tension of a liquid. 

(b) Nomenclature. The nomenclature used in this subpart has the following meaning: 

(1) AMR=the allowable mass emission rate from each type of affected source subject to the same emission 

limitation in milligrams per hour (mg/hr). 

(2) AMRsys=the allowable mass emission rate from affected sources controlled by an add-on air pollution 

control device controlling emissions from multiple sources in mg/hr. 

(3) EL=the applicable emission limitation from §63.342 in milligrams per dry standard cubic meter 

(mg/dscm). 

(4) IAtotal=the sum of all inlet duct areas from both affected and nonaffected sources in meters squared. 

(5) IDAi=the total inlet area for all ducts associated with affected sources in meters squared. 

(6) IDAi,a=the total inlet duct area for all ducts conveying chromic acid from each type of affected source 

performing the same operation, or each type of affected source subject to the same emission limitation in 

meters squared. 

(7) VR=the total of ventilation rates for each type of affected source subject to the same emission limitation 

in dry standard cubic meters per minute (dscm/min). 

(8) VRinlet=the total ventilation rate from all inlet ducts associated with affected sources in dscm/min. 

(9) VRinlet,a=the total ventilation rate from all inlet ducts conveying chromic acid from each type of affected 

source performing the same operation, or each type of affected source subject to the same emission 

limitation in dscm/min. 

(10) VRtot=the average total ventilation rate for the three test runs as determined at the outlet by means of 

the Method 306 in appendix A of this part testing in dscm/min. 

[60 FR 4963, Jan. 25, 1995, as amended at 69 FR 42894, July 19, 2004] 

§ 63.342 Standards. 

(a) Each owner or operator of an affected source subject to the provisions of this subpart shall comply with 

these requirements on and after the compliance dates specified in §63.343(a). All affected sources are 

regulated by applying maximum achievable control technology. 

(b) Applicability of emission limitations. (1) The emission limitations in this section apply during tank 

operation as defined in §63.341, and during periods of startup and shutdown as these are routine 

occurrences for affected sources subject to this subpart. The emission limitations do not apply during 

periods of malfunction, but the work practice standards that address operation and maintenance and that 

are required by paragraph (f) of this section must be followed during malfunctions. 

(2) If an owner or operator is controlling a group of tanks with a common add-on air pollution control device, 

the emission limitations of paragraphs (c), (d), and (e) of this section apply whenever any one affected 

source is operated. The emission limitation that applies to the group of affected sources is: 
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(i) The emission limitation identified in paragraphs (c), (d), and (e) of this section if the affected sources are 

performing the same type of operation (e.g., hard chromium electroplating), are subject to the same 

emission limitation, and are not controlled by an add-on air pollution control device also controlling 

nonaffected sources; 

(ii) The emission limitation calculated according to §63.344(e)(3) if affected sources are performing the same 

type of operation, are subject to the same emission limitation, and are controlled with an add-on air pollution 

control device that is also controlling nonaffected sources; and 

(iii) The emission limitation calculated according to §63.344(e)(4) if affected sources are performing different 

types of operations, or affected sources are performing the same operations but subject to different emission 

limitations, and are controlled with an add-on air pollution control device that may also be controlling 

emissions from nonaffected sources. 

(c)(1) Standards for open surface hard chromium electroplating tanks. During tank operation, each owner or 

operator of an existing, new, or reconstructed affected source shall control chromium emissions discharged 

to the atmosphere from that affected source by either: 

(i) Not allowing the concentration of total chromium in the exhaust gas stream discharged to the atmosphere 

to exceed 0.015 milligrams of total chromium per dry standard cubic meter (mg/dscm) of ventilation air (6.6 × 

10−6

grains per dry standard cubic foot (gr/dscf)) for all open surface hard chromium electroplating tanks that 

are affected sources other than those that are existing affected sources located at small hard chromium 

electroplating facilities; or 

(ii) Not allowing the concentration of total chromium in the exhaust gas stream discharged to the atmosphere 

to exceed 0.03 mg/dscm (1.3 × 10−5

gr/dscf) if the open surface hard chromium electroplating tank is an 

existing affected source and is located at a small, hard chromium electroplating facility; or 

(iii) If a chemical fume suppressant containing a wetting agent is used, by not allowing the surface tension of 

the electroplating or anodizing bath contained within the affected tank to exceed 45 dynes per centimeter 

(dynes/cm) (3.1 × 10−3

pound-force per foot (lbf/ft)) as measured by a stalagmometer or 35 dynes/cm (2.4 × 

10−3

lbf/ft) as measured by a tensiometer at any time during tank operation. 

(2) Standards for enclosed hard chromium electroplating tanks. During tank operation, each owner or 

operator of an existing, new, or reconstructed affected source shall control chromium emissions discharged 

to the atmosphere from that affected source by either: 

(i) Not allowing the concentration of total chromium in the exhaust gas stream discharged to the atmosphere 

to exceed 0.015 mg/dscm (6.6 × 10−6

gr/dscf) for all enclosed hard chromium electroplating tanks that are 

affected sources other than those that are existing affected sources located at small, hard chromium 

electroplating facilities; or 

(ii) Not allowing the concentration of total chromium in the exhaust gas stream discharged to the atmosphere 

to exceed 0.03 mg/dscm (1.3 × 10−5

gr/dscf) if the enclosed hard chromium electroplating tank is an existing 

affected source and is located at a small, hard chromium electroplating facility; or 

(iii) If a chemical fume suppressant containing a wetting agent is used, by not allowing the surface tension of 

the electroplating or anodizing bath contained within the affected tank to exceed 45 dynes/cm (3.1 × 

10−3

lbf/ft) as measured by a stalagmometer or 35 dynes/cm (2.4 × 10−3lbf/ft) as measured by a tensiometer 

at any time during tank operation; or 

(iv) Not allowing the mass rate of total chromium in the exhaust gas stream discharged to the atmosphere to 

exceed the maximum allowable mass emission rate determined by using the calculation procedure in 

§63.344(f)(1)(i) for all enclosed hard chromium electroplating tanks that are affected sources other than 

those that are existing affected sources located at small, hard chromium electroplating facilities; or 

(v) Not allowing the mass rate of total chromium in the exhaust gas stream discharged to the atmosphere to 

exceed the maximum allowable mass emission rate determined by using the calculation procedure in 
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§63.344(f)(1)(ii) if the enclosed hard chromium electroplating tank is an existing affected source and is 

located at a small, hard chromium electroplating facility. 

(3)(i) An owner or operator may demonstrate the size of a hard chromium electroplating facility through the 

definitions in §63.341(a). Alternatively, an owner or operator of a facility with a maximum cumulative 

potential rectifier capacity of 60 million amp-hr/yr or more may be considered small if the actual cumulative 

rectifier capacity is less than 60 million amp-hr/yr as demonstrated using the following procedures: 

(A) If records show that the facility's previous annual actual rectifier capacity was less than 60 million amphr/yr, by using nonresettable ampere-hr meters and keeping monthly records of actual ampere-hr usage for 

each 12-month rolling period following the compliance date in accordance with §63.346(b)(12). The actual 

cumulative rectifier capacity for the previous 12-month rolling period shall be tabulated monthly by adding 

the capacity for the current month to the capacities for the previous 11 months; or 

(B) By accepting a federally-enforceable limit on the maximum cumulative potential rectifier capacity of a 

hard chromium electroplating facility and by maintaining monthly records in accordance with §63.346(b)(12) 

to demonstrate that the limit has not been exceeded. The actual cumulative rectifier capacity for the previous 

12-month rolling period shall be tabulated monthly by adding the capacity for the current month to the 

capacities for the previous 11 months. 

(ii) Once the monthly records required to be kept by §63.346(b)(12) and by this paragraph (c)(3)(ii) show that 

the actual cumulative rectifier capacity over the previous 12-month rolling period corresponds to the large 

designation, the owner or operator is subject to the emission limitation identified in paragraph (c)(1)(i), (iii), 

(c)(2)(i), (iii), or (iv) of this section, in accordance with the compliance schedule of §63.343(a)(5). 

(d) Standards for decorative chromium electroplating tanks using a chromic acid bath and chromium 

anodizing tanks. During tank operation, each owner or operator of an existing, new, or reconstructed 

affected source shall control chromium emissions discharged to the atmosphere from that affected source 

by either: 

(1) Not allowing the concentration of total chromium in the exhaust gas stream discharged to the 

atmosphere to exceed 0.01 mg/dscm (4.4×10−6

gr/dscf); or 

(2) If a chemical fume suppressant containing a wetting agent is used, by not allowing the surface tension of 

the electroplating or anodizing bath contained within the affected source to exceed 45 dynes/cm (3.1 × 

10−3

lbf/ft) as measured by a stalagmometer or 35 dynes/cm (2.4 × 10−3lbf/ft) as measured by a tensiometer 

at any time during operation of the tank. 

(e) Standards for decorative chromium electroplating tanks using a trivalent chromium bath. (1) Each owner 

or operator of an existing, new, or reconstructed decorative chromium electroplating tank that uses a 

trivalent chromium bath that incorporates a wetting agent as a bath ingredient is subject to the 

recordkeeping and reporting requirements of §§63.346(b)(14) and 63.347(i), but are not subject to the work 

practice requirements of paragraph (f) of this section, or the continuous compliance monitoring requirements 

in §63.343(c). The wetting agent must be an ingredient in the trivalent chromium bath components 

purchased from vendors. 

(2) Each owner or operator of an existing, new, or reconstructed decorative chromium electroplating tank 

that uses a trivalent chromium bath that does not incorporate a wetting agent as a bath ingredient is subject 

to the standards of paragraph (d) of this section. 

(3) Each owner or operator of existing, new, or reconstructed decorative chromium electroplating tank that 

had been using a trivalent chromium bath that incorporates a wetting agent and ceases using this type of 

bath must fulfill the reporting requirements of §63.347(i)(3) and comply with the applicable emission 

limitation within the timeframe specified in §63.343(a)(7). 

(f) Operation and maintenance practices. All owners or operators subject to the standards in paragraphs (c) 

and (d) of this section are subject to these operation and maintenance practices. 
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(1)(i) At all times, including periods of startup, shutdown, and malfunction, owners or operators shall operate 

and maintain any affected source, including associated air pollution control devices and monitoring 

equipment, in a manner consistent with good air pollution control practices. 

(ii) Malfunctions shall be corrected as soon as practicable after their occurrence. 

(iii) Operation and maintenance requirements established pursuant to section 112 of the Act are enforceable 

independent of emissions limitations or other requirements in relevant standards. 

(2)(i) Determination of whether acceptable operation and maintenance procedures are being used will be 

based on information available to the Administrator, which may include, but is not limited to, monitoring 

results; review of the operation and maintenance plan, procedures, and records; and inspection of the 

source. 

(ii) Based on the results of a determination made under paragraph (f)(2)(i) of this section, the Administrator 

may require that an owner or operator of an affected source make changes to the operation and 

maintenance plan required by paragraph (f)(3) of this section for that source. Revisions may be required if 

the Administrator finds that the plan: 

(A) Does not address a malfunction that has occurred; 

(B) Fails to provide for the proper operation of the affected source, the air pollution control techniques, or the 

control system and process monitoring equipment during a malfunction in a manner consistent with good air 

pollution control practices; or 

(C) Does not provide adequate procedures for correcting malfunctioning process equipment, air pollution 

control techniques, or monitoring equipment as quickly as practicable. 

(3) Operation and maintenance plan. (i) The owner or operator of an affected source subject to paragraph (f) 

of this section shall prepare an operation and maintenance plan no later than the compliance date, except 

for hard chromium electroplaters and the chromium anodizing operations in California which have until 

January 25, 1998. The plan shall be incorporated by reference into the source's title V permit, if and when a 

title V permit is required. The plan shall include the following elements: 

(A) The plan shall specify the operation and maintenance criteria for the affected source, the add-on air 

pollution control device (if such a device is used to comply with the emission limits), and the process and 

control system monitoring equipment, and shall include a standardized checklist to document the operation 

and maintenance of this equipment; 

(B) For sources using an add-on control device or monitoring equipment to comply with this subpart, the 

plan shall incorporate the operation and maintenance practices for that device or monitoring equipment, as 

identified in Table 1 of this section, if the specific equipment used is identified in Table 1 of this section; 

(C) If the specific equipment used is not identified in Table 1 of this section, the plan shall incorporate 

proposed operation and maintenance practices. These proposed operation and maintenance practices shall 

be submitted for approval as part of the submittal required under §63.343(d); 

(D) The plan shall specify procedures to be followed to ensure that equipment or process malfunctions due 

to poor maintenance or other preventable conditions do not occur; and 

(E) The plan shall include a systematic procedure for identifying malfunctions of process equipment, add-on 

air pollution control devices, and process and control system monitoring equipment and for implementing 

corrective actions to address such malfunctions. 

(ii) If the operation and maintenance plan fails to address or inadequately addresses an event that meets the 

characteristics of a malfunction at the time the plan is initially developed, the owner or operator shall revise 

the operation and maintenance plan within 45 days after such an event occurs. The revised plan shall 
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include procedures for operating and maintaining the process equipment, add-on air pollution control device, 

or monitoring equipment during similar malfunction events, and a program for corrective action for such 

events. 

(iii) Recordkeeping associated with the operation and maintenance plan is identified in §63.346(b). 

Reporting associated with the operation and maintenance plan is identified in §63.347 (g) and (h) and 

paragraph (f)(3)(iv) of this section. 

(iv) If actions taken by the owner or operator during periods of malfunction are inconsistent with the 

procedures specified in the operation and maintenance plan required by paragraph (f)(3)(i) of this section, 

the owner or operator shall record the actions taken for that event and shall report by phone such actions 

within 2 working days after commencing actions inconsistent with the plan. This report shall be followed by a 

letter within 7 working days after the end of the event, unless the owner or operator makes alternative 

reporting arrangements, in advance, with the Administrator. 

(v) The owner or operator shall keep the written operation and maintenance plan on record after it is 

developed to be made available for inspection, upon request, by the Administrator for the life of the affected 

source or until the source is no longer subject to the provisions of this subpart. In addition, if the operation 

and maintenance plan is revised, the owner or operator shall keep previous (i.e., superseded) versions of 

the operation and maintenance plan on record to be made available for inspection, upon request, by the 

Administrator for a period of 5 years after each revision to the plan. 

(vi) To satisfy the requirements of paragraph (f)(3) of this section, the owner or operator may use applicable 

standard operating procedure (SOP) manuals, Occupational Safety and Health Administration (OSHA) 

plans, or other existing plans, provided the alternative plans meet the requirements of this section. 

(g) The standards in this section that apply to chromic acid baths shall not be met by using a reducing agent 

to change the form of chromium from hexavalent to trivalent. 

Table 1 to §63.342—Summary of Operation and Maintenance Practices 

Control technique Operation and maintenance practices Frequency 

Composite meshpad (CMP) system 1. Visually inspect device to ensure there is 

proper drainage, no chronic acid buildup on the 

pads, and no evidence of chemical attack on 

the structural integrity of the device 

1. 1/quarter. 

 2. Visually inspect back portion of the mesh 

pad closest to the fan to ensure there is no 

breakthrough of chromic acid mist 

2. 1/quarter. 

 3. Visually inspect ductwork from tank to the 

control device to ensure there are no leaks 

3. 1/quarter. 

 4. Perform washdown of the composite meshpads in accordance with manufacturers 

recommendations 

4. Per manufacturer.

Packed-bed 

scrubber (PSB) 

1. Visually inspect device to ensure there is 

proper drainage, no chromic acid buildup on 

the packed beds, and no evidence of chemical 

attack on the structural integrity of the device 

1. 1/quarter. 
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 2. Visually inspect back portion of the chevron 

blade mist eliminator to ensure that it is dry 

and there is no breakthrough of chromic acid 

mist 

2. 1/quarter. 

 3. Same as number 3 above 3. 1/quarter. 

 4. Add fresh makeup water to the top of the 

packed beda,b

4. Whenever makeup 

is added. 

PBS/CMP system 1. Same as for CMP system 1. 1/quarter. 

 2. Same as for CMP system 2. 1/quarter. 

 3. Same as for CMP system 3. 1/quarter. 

 4. Same as for CMP system 4. Per manufacturer.

Fiber-bed mist 

eliminatorc

1. Visually inspect fiber-bed unit and 

prefiltering device to ensure there is proper 

drainage, no chromic acid buildup in the units, 

and no evidence of chemical attack on the 

structural integrity of the devices 

1. 1/quarter. 

 2. Visually inspect ductwork from tank or 

tanks to the control device to ensure there are 

no leaks 

2. 1/quarter. 

 3. Perform washdown of fiber elements in 

accordance with manufacturers 

recommendations 

3. Per manufacturer.

Air pollution 

control device 

(APCD) not listed 

in rule 

To be proposed by the source for approval by 

the Administrator 

To be proposed by 

the source for 

approval by the 

Administrator. 

Monitoring Equipment 

Pitot tube Backflush with water, or remove from the duct 

and rinse with fresh water. Replace in the duct 

and rotate 180 degrees to ensure that the same 

zero reading is obtained. Check pitot tube ends 

for damage. Replace pitot tube if cracked or 

fatigued 

1/quarter. 

Stalagmometer Follow manufacturers recommendations 

a

If greater than 50 percent of the scrubber water is drained (e.g., for maintenance purposes), makeup water 

may be added to the scrubber basin. 

b

For horizontal-flow scrubbers, top is defined as the section of the unit directly above the packing media 

such that the makeup water would flow perpendicular to the air flow through the packing. For vertical-flow 
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units, the top is defined as the area downstream of the packing material such that the makeup water would 

flow countercurrent to the air flow through the unit. 

c

Work practice standards for the control device installed upstream of the fiber-bed mist eliminator to prevent 

plugging do not apply as long as the work practice standards for the fiber-bed unit are followed. 

[60 FR 4963, Jan. 25, 1995; 60 FR 33122, June 27, 1995, as amended at 61 FR 27787, June 3, 1996; 62 

FR 42920, Aug. 11, 1997; 68 FR 37347, June 23, 2003; 69 FR 42894, July 19, 2004; 71 FR 20456, Apr. 20, 

2006] 

§ 63.343 Compliance provisions. 

(a) Compliance dates. (1) The owner or operator of an existing affected source shall comply with the 

emission limitations in §63.342 as follows: 

(i) No later than 1 year after January 25, 1995, if the affected source is a decorative chromium electroplating 

tank; and 

(ii) No later than 2 years after January 25, 1995, if the affected source is a hard chromium electroplating tank 

or a chromium anodizing tank. 

(2) The owner or operator of a new or reconstructed affected source that has an initial startup after January 

25, 1995, shall comply immediately upon startup of the source. The owner or operator of a new or 

reconstructed affected source that has an initial startup after December 16, 1993 but before January 25, 

1995, shall follow the compliance schedule of §63.6(b)(1). 

(3) The owner or operator of an existing area source that increases actual or potential emissions of 

hazardous air pollutants such that the area source becomes a major source must comply with the provisions 

for existing major sources, including the reporting provisions of §63.347(g), immediately upon becoming a 

major source. 

(4) The owner or operator of a new area source (i.e., an area source for which construction or reconstruction 

was commenced after December 16, 1993) that increases actual or potential emissions of hazardous air 

pollutants such that the area source becomes a major source must comply with the provisions for new major 

sources, immediately upon becoming a major source. 

(5) An owner or operator of an existing hard chromium electroplating tank or tanks located at a small, hard 

chromium electroplating facility that increases its maximum cumulative potential rectifier capacity, or its 

actual cumulative rectifier capacity, such that the facility becomes a large, hard chromium electroplating 

facility must comply with the requirements of §63.342(c)(1)(i) for all hard chromium electroplating tanks at 

the facility no later than 1 year after the month in which monthly records required by §§63.342(c)(2) and 

63.346(b)(12) show that the large designation is met, or by the compliance date specified in paragraph 

(a)(1)(ii) of this section, whichever is later. 

(6) Request for an extension of compliance. An owner or operator of an affected source or sources that 

requests an extension of compliance shall do so in accordance with this paragraph and the applicable 

paragraphs of §63.6(i). When the owner or operator is requesting the extension for more than one affected 

source located at the facility, then only one request may be submitted for all affected sources at the facility. 

(i) The owner or operator of an existing affected source who is unable to comply with a relevant standard 

under this subpart may request that the Administrator (or a State, when the State has an approved part 70 

permit program and the source is required to obtain a part 70 permit under that program, or a State, when 

the State has been delegated the authority to implement and enforce the emission standard for that source) 

grant an extension allowing the owner or operator up to 1 additional year to comply with the standard for the 

affected source. The owner or operator of an affected source who has requested an extension of 

compliance under this paragraph and is otherwise required to obtain a title V permit for the source shall 

apply for such permit or apply to have the title V permit revised to incorporate the conditions of the extension 
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of compliance. The conditions of an extension of compliance granted under this paragraph will be 

incorporated into the owner or operator's title V permit for the affected source(s) according to the provisions 

of 40 CFR part 70 or 40 CFR part 71, whichever is applicable. 

(ii) Any request under this paragraph for an extension of compliance with a relevant standard shall be 

submitted in writing to the appropriate authority not later than 6 months before the affected source's 

compliance date as specified in this section. 

(7) An owner or operator of a decorative chromium electroplating tank that uses a trivalent chromium bath 

that incorporates a wetting agent, and that ceases using the trivalent chromium process, must comply with 

the emission limitation now applicable to the tank within 1 year of switching bath operation. 

(b) Methods to demonstrate initial compliance. (1) Except as provided in paragraphs (b)(2) and (b)(3) of this 

section, an owner or operator of an affected source subject to the requirements of this subpart is required to 

conduct an initial performance test as required under §63.7, except for hard chromium electroplaters and 

chromium anodizing operations in California which have until January 25, 1998, using the procedures and 

test methods listed in §§63.7 and 63.344. 

(2) If the owner or operator of an affected source meets all of the following criteria, an initial performance 

test is not required to be conducted under this subpart: 

(i) The affected source is a hard chromium electroplating tank, a decorative chromium electroplating tank or 

a chromium anodizing tank; and 

(ii) A wetting agent is used in the plating or anodizing bath to inhibit chromium emissions from the affected 

source; and 

(iii) The owner or operator complies with the applicable surface tension limit of §63.342(c)(1)(iii), (c)(2)(iii), or 

(d)(2) as demonstrated through the continuous compliance monitoring required by paragraph (c)(5)(ii) of this 

section. 

(3) If the affected source is a decorative chromium electroplating tank using a trivalent chromium bath, and 

the owner or operator is subject to the provisions of §63.342(e), an initial performance test is not required to 

be conducted under this subpart. 

(c) Monitoring to demonstrate continuous compliance. The owner or operator of an affected source subject 

to the emission limitations of this subpart shall conduct monitoring according to the type of air pollution 

control technique that is used to comply with the emission limitation. The monitoring required to demonstrate 

continuous compliance with the emission limitations is identified in this section for the air pollution control 

techniques expected to be used by the owners or operators of affected sources. 

(1) Composite mesh-pad systems. (i) During the initial performance test, the owner or operator of an 

affected source, or a group of affected sources under common control, complying with the emission 

limitations in §63.342 through the use of a composite mesh-pad system shall determine the outlet chromium 

concentration using the test methods and procedures in §63.344(c), and shall establish as a site-specific 

operating parameter the pressure drop across the system, setting the value that corresponds to compliance 

with the applicable emission limitation, using the procedures in §63.344(d)(5). An owner or operator may 

conduct multiple performance tests to establish a range of compliant pressure drop values, or may set as 

the compliant value the average pressure drop measured over the three test runs of one performance test 

and accept ±2 inches of water column from this value as the compliant range. 

(ii) On and after the date on which the initial performance test is required to be completed under §63.7, 

except for hard chromium electroplaters and chromium anodizing operations in California, which have until 

January 25, 1998, the owner or operator of an affected source, or group of affected sources under common 

control, shall monitor and record the pressure drop across the composite mesh-pad system once each day 

that any affected source is operating. To be in compliance with the standards, the composite mesh-pad 

system shall be operated within ±2 inches of water column of the pressure drop value established during the 
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initial performance test, or shall be operated within the range of compliant values for pressure drop 

established during multiple performance tests. 

(iii) The owner or operator of an affected source complying with the emission limitations in §63.343 through 

the use of a composite mesh-pad system may repeat the performance test and establish as a new sitespecific operating parameter the pressure drop across the composite mesh-pad system according to the 

requirements in paragraphs (c)(1)(i) or (ii) of this section. To establish a new site-specific operating 

parameter for pressure drop, the owner or operator shall satisfy the requirements specified in paragraphs 

(c)(1)(iii)(A) through (D) of this section. 

(A) Determine the outlet chromium concentration using the test methods and procedures in §63.344(c); 

(B) Establish the site-specific operating parameter value using the procedures §63.344(d)(5); 

(C) Satisfy the recordkeeping requirements in §63.346(b)(6) through (8); and 

(D) Satisfy the reporting requirements in §63.347(d) and (f). 

(iv) The requirement to operate a composite mesh-pad system within the range of pressure drop values 

established under paragraphs (c)(1)(i) through (iii) of this section does not apply during automatic washdown 

cycles of the composite mesh-pad system. 

(2) Packed-bed scrubber systems. (i) During the initial performance test, the owner or operator of an 

affected source, or group of affected sources under common control, complying with the emission limitations 

in §63.342 through the use of a packed-bed scrubber system shall determine the outlet chromium 

concentration using the procedures in §63.344(c), and shall establish as site-specific operating parameters 

the pressure drop across the system and the velocity pressure at the common inlet of the control device, 

setting the value that corresponds to compliance with the applicable emission limitation using the 

procedures in §63.344(d) (4) and (5). An owner or operator may conduct multiple performance tests to 

establish a range of compliant operating parameter values. Alternatively, the owner or operator may set as 

the compliant value the average pressure drop and inlet velocity pressure measured over the three test runs 

of one performance test, and accept ±1 inch of water column from the pressure drop value and ±10 percent 

from the velocity pressure value as the compliant range. 

(ii) On and after the date on which the initial performance test is required to be completed under §63.7, 

except for hard chromium electroplaters and chromium anodizing operations in California which have until 

January 25, 1998, the owner or operator of an affected source, or group of affected sources under common 

control, shall monitor and record the velocity pressure at the inlet to the packed-bed system and the 

pressure drop across the scrubber system once each day that any affected source is operating. To be in 

compliance with the standards, the scrubber system shall be operated within ±10 percent of the velocity 

pressure value established during the initial performance test, and within ±1 inch of water column of the 

pressure drop value established during the initial performance test, or within the range of compliant 

operating parameter values established during multiple performance tests. 

(3) Packed-bed scrubber/composite mesh-pad system. The owner or operator of an affected source, or 

group of affected sources under common control, that uses a packed-bed scrubber in conjunction with a 

composite mesh-pad system to meet the emission limitations of §63.342 shall comply with the monitoring 

requirements for composite mesh-pad systems as identified in paragraph (c)(1) of this section. 

(4) Fiber-bed mist eliminator. (i) During the initial performance test, the owner or operator of an affected 

source, or group of affected sources under common control, complying with the emission limitations in 

§63.342 through the use of a fiber-bed mist eliminator shall determine the outlet chromium concentration 

using the procedures in §63.344(c), and shall establish as a site-specific operating parameter the pressure 

drop across the fiber-bed mist eliminator and the pressure drop across the control device installed upstream 

of the fiber bed to prevent plugging, setting the value that corresponds to compliance with the applicable 

emission limitation using the procedures in §63.344(d)(5). An owner or operator may conduct multiple 

performance tests to establish a range of compliant pressure drop values, or may set as the compliant value 
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the average pressure drop measured over the three test runs of one performance test and accept ±1 inch of 

water column from this value as the compliant range. 

(ii) On and after the date on which the initial performance test is required to be completed under §63.7, 

except for hard chromium electroplaters and chromium anodizing operations in California which have until 

January 25, 1998, the owner or operator of an affected source, or group of affected sources under common 

control, shall monitor and record the pressure drop across the fiber-bed mist eliminator, and the control 

device installed upstream of the fiber bed to prevent plugging, once each day that any affected source is 

operating. To be in compliance with the standards, the fiber-bed mist eliminator and the upstream control 

device shall be operated within ±1 inch of water column of the pressure drop value established during the 

initial performance test, or shall be operated within the range of compliant values for pressure drop 

established during multiple performance tests. 

(5) Wetting agent-type or combination wetting agent-type/foam blanket fume suppressants. (i) During the 

initial performance test, the owner or operator of an affected source complying with the emission limitations 

in §63.342 through the use of a wetting agent in the electroplating or anodizing bath shall determine the 

outlet chromium concentration using the procedures in §63.344(c). The owner or operator shall establish as 

the site-specific operating parameter the surface tension of the bath using Method 306B, appendix A of this 

part, setting the maximum value that corresponds to compliance with the applicable emission limitation. In 

lieu of establishing the maximum surface tension during the performance test, the owner or operator may 

accept 45 dynes/cm as measured by a stalagmometer or 35 dynes/cm as measured by a tensiometer as the 

maximum surface tension value that corresponds to compliance with the applicable emission limitation. 

However, the owner or operator is exempt from conducting a performance test only if the criteria of 

paragraph (b)(2) of this section are met. 

(ii) On and after the date on which the initial performance test is required to be completed under §63.7, 

except for hard chromium electroplaters and chromium anodizing operations in California, which have until 

January 25, 1998, the owner or operator of an affected source shall monitor the surface tension of the 

electroplating or anodizing bath. Operation of the affected source at a surface tension greater than the value 

established during the performance test, or greater than 45 dynes/cm as measured by a stalagmometer or 

35 dynes/cm as measured by a tensiometer if the owner or operator is using this value in accordance with 

paragraph (c)(5)(i) of this section, shall constitute noncompliance with the standards. The surface tension 

shall be monitored according to the following schedule: 

(A) The surface tension shall be measured once every 4 hours during operation of the tank with a 

stalagmometer or a tensiometer as specified in Method 306B, appendix A of this part. 

(B) The time between monitoring can be increased if there have been no exceedances. The surface tension 

shall be measured once every 4 hours of tank operation for the first 40 hours of tank operation after the 

compliance date. Once there are no exceedances during 40 hours of tank operation, surface tension 

measurement may be conducted once every 8 hours of tank operation. Once there are no exceedances 

during 40 hours of tank operation, surface tension measurement may be conducted once every 40 hours of 

tank operation on an ongoing basis, until an exceedance occurs. The minimum frequency of monitoring 

allowed by this subpart is once every 40 hours of tank operation. 

(C) Once an exceedance occurs as indicated through surface tension monitoring, the original monitoring 

schedule of once every 4 hours must be resumed. A subsequent decrease in frequency shall follow the 

schedule laid out in paragraph (c)(5)(ii)(B) of this section. For example, if an owner or operator had been 

monitoring an affected source once every 40 hours and an exceedance occurs, subsequent monitoring 

would take place once every 4 hours of tank operation. Once an exceedance does not occur for 40 hours of 

tank operation, monitoring can occur once every 8 hours of tank operation. Once an exceedance does not 

occur for 40 hours of tank operation on this schedule, monitoring can occur once every 40 hours of tank 

operation. 

(iii) Once a bath solution is drained from the affected tank and a new solution added, the original monitoring 

schedule of once every 4 hours must be resumed, with a decrease in monitoring frequency allowed following 

the procedures of paragraphs (c)(5)(ii) (B) and (C) of this section. 
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(6) Foam blanket-type fume suppressants. (i) During the initial performance test, the owner or operator of an 

affected source complying with the emission limitations in §63.342 through the use of a foam blanket in the 

electroplating or anodizing bath shall determine the outlet chromium concentration using the procedures in 

§63.344(c), and shall establish as the site-specific operating parameter the thickness of the foam blanket, 

setting the minimum thickness that corresponds to compliance with the applicable emission limitation. In lieu 

of establishing the minimum foam blanket thickness during the performance test, the owner or operator may 

accept 2.54 centimeters (1 inch) as the minimum foam blanket thickness that corresponds to compliance 

with the applicable emission limitation. All foam blanket measurements must be taken in close proximity to 

the workpiece or cathode area in the plating tank(s). 

(ii) On and after the date on which the initial performance test is required to be completed under §63.7, 

except for hard chromium electroplaters and chromium anodizing operations in California which have until 

January 25, 1998, the owner or operator of an affected source shall monitor the foam blanket thickness of 

the electroplating or anodizing bath. Operation of the affected source at a foam blanket thickness less than 

the value established during the performance test, or less than 2.54 cm (1 inch) if the owner or operator is 

using this value in accordance with paragraph (c)(6)(i) of this section, shall constitute noncompliance with 

the standards. The foam blanket thickness shall be measured according to the following schedule: 

(A) The foam blanket thickness shall be measured once every 1 hour of tank operation. 

(B) The time between monitoring can be increased if there have been no exceedances. The foam blanket 

thickness shall be measured once every hour of tank operation for the first 40 hours of tank operation after 

the compliance date. Once there are no exceedances for 40 hours of tank operation, foam blanket thickness 

measurement may be conducted once every 4 hours of tank operation. Once there are no exceedances 

during 40 hours of tank operation, foam blanket thickness measurement may be conducted once every 8 

hours of tank operation on an ongoing basis, until an exceedance occurs. The minimum frequency of 

monitoring allowed by this subpart is once per 8 hours of tank operation. 

(C) Once an exceedance occurs as indicated through foam blanket thickness monitoring, the original 

monitoring schedule of once every hour must be resumed. A subsequent decrease in frequency shall follow 

the schedule laid out in paragraph (c)(6)(ii)(B) of this section. For example, if an owner or operator had been 

monitoring an affected source once every 8 hours and an exceedance occurs, subsequent monitoring would 

take place once every hour of tank operation. Once an exceedance does not occur for 40 hours of tank 

operation, monitoring can occur once every 4 hours of tank operation. Once an exceedance does not occur 

for 40 hours of tank operation on this schedule, monitoring can occur once every 8 hours of tank operation. 

(iii) Once a bath solution is drained from the affected tank and a new solution added, the original monitoring 

schedule of once every hour must be resumed, with a decrease in monitoring frequency allowed following 

the procedures of paragraphs (c)(6)(ii) (B) and (C) of this section. 

(7) Fume suppressant/add-on control device. (i) If the owner or operator of an affected source uses both a 

fume suppressant and add-on control device and both are needed to comply with the applicable emission 

limit, monitoring requirements as identified in paragraphs (c) (1) through (6) of this section, and the work 

practice standards of Table 1 of §63.342, apply for each of the control techniques used. 

(ii) If the owner or operator of an affected source uses both a fume suppressant and add-on control device, 

but only one of these techniques is needed to comply with the applicable emission limit, monitoring 

requirements as identified in paragraphs (c) (1) through (6) of this section, and work practice standards of 

Table 1 of §63.342, apply only for the control technique used to achieve compliance. 

(8) Use of an alternative monitoring method. (i) Requests and approvals of alternative monitoring methods 

shall be considered in accordance with §63.8(f)(1), (f)(3), (f)(4), and (f)(5). 

(ii) After receipt and consideration of an application for an alternative monitoring method, the Administrator 

may approve alternatives to any monitoring methods or procedures of this subpart including, but not limited 

to, the following: 
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(A) Alternative monitoring requirements when installation or use of monitoring devices specified in this 

subpart would not provide accurate measurements due to interferences caused by substances within the 

effluent gases; or 

(B) Alternative locations for installing monitoring devices when the owner or operator can demonstrate that 

installation at alternate locations will enable accurate and representative measurements. 

(d) An owner or operator who uses an air pollution control device not listed in this section shall submit a 

description of the device, test results collected in accordance with §63.344(c) verifying the performance of 

the device for reducing chromium emissions to the atmosphere to the level required by this subpart, a copy 

of the operation and maintenance plan referenced in §63.342(f) including operation and maintenance 

practices, and appropriate operating parameters that will be monitored to establish continuous compliance 

with the standards. The monitoring plan submitted identifying the continuous compliance monitoring is 

subject to the Administrator's approval. 

[60 FR 4963, Jan. 25, 1995; 60 FR 33122, June 27, 1995, as amended at 62 FR 42920, Aug. 11, 1997; 68 

FR 37347, June 23, 2003; 69 FR 42895, July 19, 2004] 

§ 63.344 Performance test requirements and test methods. 

(a) Performance test requirements. Performance tests shall be conducted using the test methods and 

procedures in this section and §63.7. Performance test results shall be documented in complete test reports 

that contain the information required by paragraphs (a)(1) through (a)(9) of this section. The test plan to be 

followed shall be made available to the Administrator prior to the testing, if requested. 

(1) A brief process description; 

(2) Sampling location description(s); 

(3) A description of sampling and analytical procedures and any modifications to standard procedures; 

(4) Test results; 

(5) Quality assurance procedures and results; 

(6) Records of operating conditions during the test, preparation of standards, and calibration procedures; 

(7) Raw data sheets for field sampling and field and laboratory analyses; 

(8) Documentation of calculations; and 

(9) Any other information required by the test method. 

(b)(1) If the owner or operator of an affected source conducts performance testing at startup to obtain an 

operating permit in the State in which the affected source is located, the results of such testing may be used 

to demonstrate compliance with this subpart if: 

(i) The test methods and procedures identified in paragraph (c) of this section were used during the 

performance test; 

(ii) The performance test was conducted under representative operating conditions for the source; 

(iii) The performance test report contains the elements required by paragraph (a) of this section; and 
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(iv) The owner or operator of the affected source for which the performance test was conducted has 

sufficient data to establish the operating parameter value(s) that correspond to compliance with the 

standards, as required for continuous compliance monitoring under §63.343(c). 

(2) The results of tests conducted prior to December 1991 in which Method 306A, appendix A of this part, 

was used to demonstrate the performance of a control technique are not acceptable. 

(c) Test methods. Each owner or operator subject to the provisions of this subpart and required by 

§63.343(b) to conduct an initial performance test shall use the test methods identified in this section to 

demonstrate compliance with the standards in §63.342. 

(1) Method 306 or Method 306A, “Determination of Chromium Emissions From Decorative and Hard 

Chromium Electroplating and Anodizing Operations,” appendix A of this part shall be used to determine the 

chromium concentration from hard or decorative chromium electroplating tanks or chromium anodizing 

tanks. The sampling time and sample volume for each run of Methods 306 and 306A, appendix A of this part 

shall be at least 120 minutes and 1.70 dscm (60 dscf), respectively. Methods 306 and 306A, appendix A of 

this part allow the measurement of either total chromium or hexavalent chromium emissions. For the 

purposes of this standard, sources using chromic acid baths can demonstrate compliance with the emission 

limits of §63.342 by measuring either total chromium or hexavalent chromium. Hence, the hexavalent 

chromium concentration measured by these methods is equal to the total chromium concentration for the 

affected operations. 

(2) The California Air Resources Board (CARB) Method 425 (which is available by contacting the California 

Air Resources Board, 1102 Q Street, Sacramento, California 95814) may be used to determine the 

chromium concentration from hard and decorative chromium electroplating tanks and chromium anodizing 

tanks if the following conditions are met: 

(i) If a colorimetric analysis method is used, the sampling time and volume shall be sufficient to result in 33 

to 66 micrograms of catch in the sampling train. 

(ii) If Atomic Absorption Graphite Furnace (AAGF) or Ion Chromatography with a Post-column Reactor 

(ICPCR) analyses were used, the sampling time and volume should be sufficient to result in a sample catch 

that is 5 to 10 times the minimum detection limit of the analytical method (i.e., 1.0 microgram per liter of 

sample for AAGF and 0.5 microgram per liter of sample for ICPCR). 

(iii) In the case of either paragraph (c)(2) (i) or (ii) of this section, a minimum of 3 separate runs must be 

conducted. The other requirements of §63.7 that apply to affected sources, as indicated in Table 1 of this 

subpart, must also be met. 

(3) Method 306B, “Surface Tension Measurement and Recordkeeping for Tanks Used at Decorative 

Chromium Electroplating and Anodizing Facilities,” appendix A of this part shall be used to measure the 

surface tension of electroplating and anodizing baths. 

(4) Alternate test methods may also be used if the method has been validated using Method 301, appendix 

A of this part and if approved by the Administrator. Procedures for requesting and obtaining approval are 

contained in §63.7(f). 

(d) Establishing site-specific operating parameter values. (1) Each owner or operator required to establish 

site-specific operating parameters shall follow the procedures in this section. 

(2) All monitoring equipment shall be installed such that representative measurements of emissions or 

process parameters from the affected source are obtained. For monitoring equipment purchased from a 

vendor, verification of the operational status of the monitoring equipment shall include execution of the 

manufacturer's written specifications or recommendations for installation, operation, and calibration of the 

system. 

(i) Specifications for differential pressure measurement devices used to measure velocity pressure shall be 

in accordance with section 2.2 of Method 2 (40 CFR part 60, appendix A). 
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(ii) Specification for differential pressure measurement devices used to measure pressure drop across a 

control system shall be in accordance with manufacturer's accuracy specifications. 

(3) The surface tension of electroplating and anodizing baths shall be measured using Method 306B, 

“Surface Tension Measurement and Recordkeeping for Tanks used at Decorative Chromium Electroplating 

and Anodizing Facilities,” appendix A of this part. This method should also be followed when wetting agent 

type or combination wetting agent/foam blanket type fume suppressants are used to control chromium 

emissions from a hard chromium electroplating tank and surface tension measurement is conducted to 

demonstrate continuous compliance. 

(4) The owner or operator of a source required to measure the velocity pressure at the inlet to an add-on air 

pollution control device in accordance with §63.343(c)(2), shall establish the site-specific velocity pressure 

as follows: 

(i) Locate a velocity traverse port in a section of straight duct that connects the hooding on the plating tank 

or tanks with the control device. The port shall be located as close to the control system as possible, and 

shall be placed a minimum of 2 duct diameters downstream and 0.5 diameter upstream of any flow 

disturbance such as a bend, expansion, or contraction (see Method 1, 40 CFR part 60, appendix A). If 2.5 

diameters of straight duct work does not exist, locate the port 0.8 of the duct diameter downstream and 0.2 

of the duct diameter upstream from any flow disturbance. 

(ii) A 12-point velocity traverse of the duct to the control device shall be conducted along a single axis 

according to Method 2 (40 CFR part 60, appendix A) using an S-type pitot tube; measurement of the 

barometric pressure and duct temperature at each traverse point is not required, but is suggested. Mark the 

S-type pitot tube as specified in Method 1 (40 CFR part 60, appendix A) with 12 points. Measure the velocity 

pressure (∆ p) values for the velocity points and record. Determine the square root of the individual velocity 

point ∆ p values and average. The point with the square root value that comes closest to the average square 

root value is the point of average velocity. The ∆ p value measured for this point during the performance test 

will be used as the reference for future monitoring. 

(5) The owner or operator of a source required to measure the pressure drop across the add-on air pollution 

control device in accordance with §63.343(c) (1) through (4) may establish the pressure drop in accordance 

with the following guidelines: 

(i) Pressure taps shall be installed at any of the following locations: 

(A) At the inlet and outlet of the control system. The inlet tap should be installed in the ductwork just prior to 

the control device and the corresponding outlet pressure tap should be installed on the outlet side of the 

control device prior to the blower or on the downstream side of the blower; 

(B) On each side of the packed bed within the control system or on each side of each mesh pad within the 

control system; or 

(C) On the front side of the first mesh pad and back side of the last mesh pad within the control system. 

(ii) Pressure taps shall be sited at locations that are: 

(A) Free from pluggage as possible and away from any flow disturbances such as cyclonic demisters. 

(B) Situated such that no air infiltration at measurement site will occur that could bias the measurement. 

(iii) Pressure taps shall be constructed of either polyethylene, polybutylene, or other nonreactive materials. 

(iv) Nonreactive plastic tubing shall be used to connect the pressure taps to the device used to measure 

pressure drop. 
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(v) Any of the following pressure gauges can be used to monitor pressure drop: a magnehelic gauge, an 

inclined manometer, or a “U” tube manometer. 

(vi) Prior to connecting any pressure lines to the pressure gauge(s), each gauge should be zeroed. No 

calibration of the pressure gauges is required. 

(e) Special compliance provisions for multiple sources controlled by a common add-on air pollution control 

device. (1) This section identifies procedures for measuring the outlet chromium concentration from an addon air pollution control device that is used to control multiple sources that may or may not include sources 

not affected by this subpart. 

(2) When multiple affected sources performing the same type of operation (e.g., all are performing hard 

chromium electroplating), and subject to the same emission limitation, are controlled with an add-on air 

pollution control device that is not controlling emissions from any other type of affected operation or from any 

nonaffected sources, the applicable emission limitation identified in §63.342 must be met at the outlet of the 

add-on air pollution control device. 

(3) When multiple affected sources performing the same type of operation and subject to the same emission 

limitation are controlled with a common add-on air pollution control device that is also controlling emissions 

from sources not affected by these standards, the following procedures should be followed to determine 

compliance with the applicable emission limitation in §63.342: 

(i) Calculate the cross-sectional area of each inlet duct (i.e., uptakes from each hood) including those not 

affected by the standard. 

(ii) Determine the total sample time per test run by dividing the total inlet area from all tanks connected to the 

control system by the total inlet area for all ducts associated with affected sources, and then multiply this 

number by 2 hours. The calculated time is the minimum sample time required per test run. 

(iii) Perform Method 306 testing and calculate an outlet mass emission rate. 

(iv) Determine the total ventilation rate from the affected sources by using equation 1: 

where VRtotis the average total ventilation rate in dscm/min for the three test runs as determined 

at the outlet by means of the Method 306 testing; IDAiis the total inlet area for all ducts associated 

with affected sources; IAtotalis the sum of all inlet duct areas from both affected and nonaffected 

sources; and VRinletis the total ventilation rate from all inlet ducts associated with affected 

sources.

(v) Establish the allowable mass emission rate of the system (AMRsys) in milligrams of total chromium per 

hour (mg/hr) using equation 2: 

where Σ VRinletis the total ventilation rate in dscm/min from the affected sources, and EL is the 

applicable emission limitation from §63.342 in mg/dscm. The allowable mass emission rate 

(AMRsys) calculated from equation 2 should be equal to or more than the outlet three-run average 

mass emission rate determined from Method 306 testing in order for the source to be in 

compliance with the standard.
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(4) When multiple affected sources performing different types of operations (e.g., hard chromium 

electroplating, decorative chromium electroplating, or chromium anodizing) are controlled by a common addon air pollution control device that may or may not also be controlling emissions from sources not affected 

by these standards, or if the affected sources controlled by the common add-on air pollution control device 

perform the same operation but are subject to different emission limitations (e.g., because one is a new hard 

chromium plating tank and one is an existing small, hard chromium plating tank), the following procedures 

should be followed to determine compliance with the applicable emission limitation in §63.342: 

(i) Follow the steps outlined in paragraphs (e)(3)(i) through (e)(3)(iii) of this section. 

(ii) Determine the total ventilation rate for each type of affected source using equation 3: 

where VRtotis the average total ventilation rate in dscm/min for the three test runs as determined 

at the outlet by means of the Method 306 testing; IDAi,ais the total inlet duct area for all ducts 

conveying chromic acid from each type of affected source performing the same operation, or 

each type of affected source subject to the same emission limitation; IAtotalis the sum of all duct 

areas from both affected and nonaffected sources; and VRinlet,ais the total ventilation rate from all 

inlet ducts conveying chromic acid from each type of affected source performing the same 

operation, or each type of affected source subject to the same emission limitation.

(iii) Establish the allowable mass emission rate in mg/hr for each type of affected source that is controlled by 

the add-on air pollution control device using equation 4, 5, 6, or 7 as appropriate: 

VRhc1× ELhc1× 60 minutes/hour = AMRhc1 (4) 

VRhc2× ELhc2× 60 minutes/hour = AMRhc2 (5) 

VRdc× ELdc× 60 minutes/hour = AMRdc (6) 

VRca× ELca× 60 minutes/hour = AMRca (7) 

where “hc” applies to the total of ventilation rates for all hard chromium electroplating tanks 

subject to the same emission limitation, “dc” applies to the total of ventilation rates for the 

decorative chromium electroplating tanks, “ca” applies to the total of ventilation rates for the 

chromium anodizing tanks, and EL is the applicable emission limitation from §63.342 in mg/dscm. 

There are two equations for hard chromium electroplating tanks because different emission 

limitations may apply (e.g., a new tank versus an existing, small tank). 

(iv) Establish the allowable mass emission rate (AMR) in mg/hr for the system using equation 8, including 

each type of affected source as appropriate: 

AMRhc1+ AMRhc2+ AMRdc+ AMRca= AMRsys (8) 

The allowable mass emission rate calculated from equation 8 should be equal to or more than the outlet 

three-run average mass emission rate determined from Method 306 testing in order for the source to be in 

compliance with the standards. 

(5) Each owner or operator that uses the special compliance provisions of this paragraph to demonstrate 

compliance with the emission limitations of §63.342 shall submit the measurements and calculations to 

support these compliance methods with the notification of compliance status required by §63.347(e). 
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(6) Each owner or operator that uses the special compliance provisions of this section to demonstrate 

compliance with the emission limitations of §63.342 shall repeat these procedures if a tank is added or 

removed from the control system regardless of whether that tank is a nonaffected source. If the new 

nonaffected tank replaces an existing nonaffected tank of the same size and is connected to the control 

system through the same size inlet duct then this procedure does not have to be repeated. 

(f) Compliance provisions for the mass rate emission standard for enclosed hard chromium electroplating 

tanks. (1) This section identifies procedures for calculating the maximum allowable mass emission rate for 

owners or operators of affected sources who choose to meet the mass emission rate standard in 

§63.342(c)(2)(iv) or (v). 

(i)(A) The owner or operator of an enclosed hard chromium electroplating tank that is an affected source 

other than an existing affected source located at a small hard chromium electroplating facility who chooses 

to meet the mass emission rate standard in §63.342(c)(2)(iv) shall determine compliance by not allowing the 

mass rate of total chromium in the exhaust gas stream discharged to the atmosphere to exceed the 

maximum allowable mass emission rate calculated using equation 9: 

MAMER = ETSA × K × 0.015 mg/dscm (9) 

Where: 

MAMER = the alternative emission rate for enclosed hard chromium electroplating tanks in mg/hr. 

ETSA = the hard chromium electroplating tank surface area in square feet(ft2

 ). 

K = a conversion factor, 425 dscm/(ft2

 × hr). 

(B) Compliance with the alternative mass emission limit is demonstrated if the three-run average mass 

emission rate determined from Method 306 testing is less than or equal to the maximum allowable mass 

emission rate calculated from equation 9. 

(ii)(A) The owner or operator of an enclosed hard chromium electroplating tank that is an existing affected 

source located at a small hard chromium electroplating facility who chooses to meet the mass emission rate 

standard in §63.342(c)(2)(v) shall determine compliance by not allowing the mass rate of total chromium in 

the exhaust gas stream discharged to the atmosphere to exceed the maximum allowable mass emission 

rate calculated using equation 10: 

MAMER = ETSA × K × 0.03 mg/dscm. (10) 

(B) Compliance with the alternative mass emission limit is demonstrated if the three-run average mass 

emission rate determined from testing using Method 306 of appendix A to part 63 is less than or equal to the 

maximum allowable mass emission rate calculated from equation 10. 

[60 FR 4963, Jan. 25, 1995, as amended at 61 FR 27787, June 3, 1996; 69 FR 42896, July 19, 2004] 

§ 63.345 Provisions for new and reconstructed sources. 

(a) This section identifies the preconstruction review requirements for new and reconstructed affected 

sources that are subject to, or become subject to, this subpart. 

(b) New or reconstructed affected sources. The owner or operator of a new or reconstructed affected source 

is subject to §63.5(a), (b)(1), (b)(5), (b)(6), and (f)(1), as well as the provisions of this paragraph. 

(1) After January 25, 1995, whether or not an approved permit program is effective in the State in which an 

affected source is (or would be) located, no person may construct a new affected source or reconstruct an 

affected source subject to this subpart, or reconstruct a source such that it becomes an affected source 
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subject to this subpart, without submitting a notification of construction or reconstruction to the Administrator. 

The notification shall contain the information identified in paragraphs (b) (2) and (3) of this section, as 

appropriate. 

(2) The notification of construction or reconstruction required under paragraph (b)(1) of this section shall 

include: 

(i) The owner or operator's name, title, and address; 

(ii) The address (i.e., physical location) or proposed address of the affected source if different from the 

owner's or operator's; 

(iii) A notification of intention to construct a new affected source or make any physical or operational 

changes to an affected source that may meet or has been determined to meet the criteria for a 

reconstruction as defined in §63.2; 

(iv) An identification of subpart N of this part as the basis for the notification; 

(v) The expected commencement and completion dates of the construction or reconstruction; 

(vi) The anticipated date of (initial) startup of the affected source; 

(vii) The type of process operation to be performed (hard or decorative chromium electroplating, or 

chromium anodizing); 

(viii) A description of the air pollution control technique to be used to control emissions from the affected 

source, such as preliminary design drawings and design capacity if an add-on air pollution control device is 

used; and 

(ix) An estimate of emissions from the source based on engineering calculations and vendor information on 

control device efficiency, expressed in units consistent with the emission limits of this subpart. Calculations 

of emission estimates should be in sufficient detail to permit assessment of the validity of the calculations. 

(3) If a reconstruction is to occur, the notification required under paragraph (b)(1) of this section shall include 

the following in addition to the information required in paragraph (b)(2) of this section: 

(i) A brief description of the affected source and the components to be replaced; 

(ii) A brief description of the present and proposed emission control technique, including the information 

required by paragraphs (b)(2) (viii) and (ix) of this section; 

(iii) An estimate of the fixed capital cost of the replacements and of constructing a comparable entirely new 

source; 

(iv) The estimated life of the affected source after the replacements; and 

(v) A discussion of any economic or technical limitations the source may have in complying with relevant 

standards or other requirements after the proposed replacements. The discussion shall be sufficiently 

detailed to demonstrate to the Administrator's satisfaction that the technical or economic limitations affect 

the source's ability to comply with the relevant standard and how they do so. 

(vi) If in the notification of reconstruction, the owner or operator designates the affected source as a 

reconstructed source and declares that there are no economic or technical limitations to prevent the source 

from complying with all relevant standards or requirements, the owner or operator need not submit the 

information required in paragraphs (b)(3) (iii) through (v) of this section. 
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(4) The owner or operator of a new or reconstructed affected source that submits a notification in 

accordance with paragraphs (b) (1) through (3) of this section is not subject to approval by the Administrator. 

Construction or reconstruction is subject only to notification and can begin upon submission of a complete 

notification. 

(5) Submittal timeframes. After January 25, 1995, whether or not an approved permit program is effective in 

the State in which an affected source is (or would be) located, an owner or operator of a new or 

reconstructed affected source shall submit the notification of construction or reconstruction required by 

paragraph (b)(1) of this section according to the following schedule: 

(i) If construction or reconstruction commences after January 25, 1995, the notification shall be submitted as 

soon as practicable before the construction or reconstruction is planned to commence. 

(ii) If the construction or reconstruction had commenced and initial startup had not occurred before January 

25, 1995, the notification shall be submitted as soon as practicable before startup but no later than 60 days 

after January 25, 1995. 

§ 63.346 Recordkeeping requirements. 

(a) The owner or operator of each affected source subject to these standards shall fulfill all recordkeeping 

requirements outlined in this section and in the General Provisions to 40 CFR part 63, according to the 

applicability of subpart A of this part as identified in Table 1 of this subpart. 

(b) The owner or operator of an affected source subject to the provisions of this subpart shall maintain the 

following records for such source: 

(1) Inspection records for the add-on air pollution control device, if such a device is used, and monitoring 

equipment, to document that the inspection and maintenance required by the work practice standards of 

§63.342(f) and Table 1 of §63.342 have taken place. The record can take the form of a checklist and should 

identify the device inspected, the date of inspection, a brief description of the working condition of the device 

during the inspection, and any actions taken to correct deficiencies found during the inspection. 

(2) Records of all maintenance performed on the affected source, the add-on air pollution control device, 

and monitoring equipment; 

(3) Records of the occurrence, duration, and cause (if known) of each malfunction of process, add-on air 

pollution control, and monitoring equipment; 

(4) Records of actions taken during periods of malfunction when such actions are inconsistent with the 

operation and maintenance plan; 

(5) Other records, which may take the form of checklists, necessary to demonstrate consistency with the 

provisions of the operation and maintenance plan required by §63.342(f)(3); 

(6) Test reports documenting results of all performance tests; 

(7) All measurements as may be necessary to determine the conditions of performance tests, including 

measurements necessary to determine compliance with the special compliance procedures of §63.344(e); 

(8) Records of monitoring data required by §63.343(c) that are used to demonstrate compliance with the 

standard including the date and time the data are collected; 

(9) The specific identification (i.e., the date and time of commencement and completion) of each period of 

excess emissions, as indicated by monitoring data, that occurs during malfunction of the process, add-on air 

pollution control, or monitoring equipment; 
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(10) The specific identification (i.e., the date and time of commencement and completion) of each period of 

excess emissions, as indicated by monitoring data, that occurs during periods other than malfunction of the 

process, add-on air pollution control, or monitoring equipment; 

(11) The total process operating time of the affected source during the reporting period; 

(12) Records of the actual cumulative rectifier capacity of hard chromium electroplating tanks at a facility 

expended during each month of the reporting period, and the total capacity expended to date for a reporting 

period, if the owner or operator is using the actual cumulative rectifier capacity to determine facility size in 

accordance with §63.342(c)(2); 

(13) For sources using fume suppressants to comply with the standards, records of the date and time that 

fume suppressants are added to the electroplating or anodizing bath; 

(14) For sources complying with §63.342(e), records of the bath components purchased, with the wetting 

agent clearly identified as a bath constituent contained in one of the components; 

(15) Any information demonstrating whether a source is meeting the requirements for a waiver of 

recordkeeping or reporting requirements, if the source has been granted a waiver under §63.10(f); and 

(16) All documentation supporting the notifications and reports required by §63.9, §63.10, and §63.347. 

(c) All records shall be maintained for a period of 5 years in accordance with §63.10(b)(1). 

§ 63.347 Reporting requirements. 

(a) The owner or operator of each affected source subject to these standards shall fulfill all reporting 

requirements outlined in this section and in the General Provisions to 40 CFR part 63, according to the 

applicability of subpart A as identified in Table 1 of this subpart. These reports shall be made to the 

Administrator at the appropriate address as identified in §63.13 or to the delegated State authority. 

(1) Reports required by subpart A of this part and this section may be sent by U.S. mail, fax, or by another 

courier. 

(i) Submittals sent by U.S. mail shall be postmarked on or before the specified date. 

(ii) Submittals sent by other methods shall be received by the Administrator on or before the specified date. 

(2) If acceptable to both the Administrator and the owner or operator of an affected source, reports may be 

submitted on electronic media. 

(b) The reporting requirements of this section apply to the owner or operator of an affected source when 

such source becomes subject to the provisions of this subpart. 

(c) Initial notifications. (1) The owner or operator of an affected source that has an initial startup before 

January 25, 1995, shall notify the Administrator in writing that the source is subject to this subpart. The 

notification shall be submitted no later than 180 calendar days after January 25, 1995, and shall contain the 

following information: 

(i) The name, title, and address of the owner or operator; 

(ii) The address (i.e., physical location) of each affected source; 

(iii) A statement that subpart N of this part is the basis for this notification; 
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(iv) Identification of the applicable emission limitation and compliance date for each affected source; 

(v) A brief description of each affected source, including the type of process operation performed; 

(vi) For sources performing hard chromium electroplating, the maximum potential cumulative potential 

rectifier capacity; 

(vii) For sources performing hard chromium electroplating, a statement of whether the affected source(s) is 

located at a small or a large, hard chromium electroplating facility and whether this will be demonstrated 

through actual or maximum potential cumulative rectifier capacity; 

(viii) For sources performing hard chromium electroplating, a statement of whether the owner or operator of 

an affected source(s) will limit the maximum potential cumulative rectifier capacity in accordance with 

§63.342(c)(2) such that the hard chromium electroplating facility is considered small; and 

(ix) A statement of whether the affected source is located at a major source or an area source as defined in 

§63.2. 

(2) The owner or operator of a new or reconstructed affected source that has an initial startup after January 

25, 1995 shall submit an initial notification (in addition to the notification of construction or reconstruction 

required by §63.345(b) as follows: 

(i) A notification of the date when construction or reconstruction was commenced, shall be submitted 

simultaneously with the notification of construction or reconstruction, if construction or reconstruction was 

commenced before January 25, 1995; 

(ii) A notification of the date when construction or reconstruction was commenced, shall be submitted no 

later than 30 calendar days after such date, if construction or reconstruction was commenced after January 

25, 1995; and 

(iii) A notification of the actual date of startup of the source shall be submitted within 30 calendar days after 

such date. 

(d) Notification of performance test. (1) The owner or operator of an affected source shall notify the 

Administrator in writing of his or her intention to conduct a performance test at least 60 calendar days before 

the test is scheduled to begin to allow the Administrator to have an observer present during the test. 

Observation of the performance test by the Administrator is optional. 

(2) In the event the owner or operator is unable to conduct the performance test as scheduled, the 

provisions of §63.7(b)(2) apply. 

(e) Notification of compliance status. (1) A notification of compliance status is required each time that an 

affected source becomes subject to the requirements of this subpart. 

(2) If the State in which the source is located has not been delegated the authority to implement the rule, 

each time a notification of compliance status is required under this part, the owner or operator of an affected 

source shall submit to the Administrator a notification of compliance status, signed by the responsible official 

(as defined in §63.2) who shall certify its accuracy, attesting to whether the affected source has complied 

with this subpart. If the State has been delegated the authority, the notification of compliance status shall be 

submitted to the appropriate authority. The notification shall list for each affected source: 

(i) The applicable emission limitation and the methods that were used to determine compliance with this 

limitation; 

(ii) If a performance test is required by this subpart, the test report documenting the results of the 

performance test, which contains the elements required by §63.344(a), including measurements and 

calculations to support the special compliance provisions of §63.344(e) if these are being followed; 
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(iii) The type and quantity of hazardous air pollutants emitted by the source reported in mg/dscm or mg/hr if 

the source is using the special provisions of §63.344(e) to comply with the standards. (If the owner or 

operator is subject to the construction and reconstruction provisions of §63.345 and had previously 

submitted emission estimates, the owner or operator shall state that this report corrects or verifies the 

previous estimate.) For sources not required to conduct a performance test in accordance with §63.343(b), 

the surface tension measurement may fulfill this requirement; 

(iv) For each monitored parameter for which a compliant value is to be established under §63.343(c), the 

specific operating parameter value, or range of values, that corresponds to compliance with the applicable 

emission limit; 

(v) The methods that will be used to determine continuous compliance, including a description of monitoring 

and reporting requirements, if methods differ from those identified in this subpart; 

(vi) A description of the air pollution control technique for each emission point; 

(vii) A statement that the owner or operator has completed and has on file the operation and maintenance 

plan as required by the work practice standards in §63.342(f); 

(viii) If the owner or operator is determining facility size based on actual cumulative rectifier capacity in 

accordance with §63.342(c)(2), records to support that the facility is small. For existing sources, records 

from any 12-month period preceding the compliance date shall be used or a description of how operations 

will change to meet a small designation shall be provided. For new sources, records of projected rectifier 

capacity for the first 12-month period of tank operation shall be used; 

(ix) A statement by the owner or operator of the affected source as to whether the source has complied with 

the provisions of this subpart. 

(3) For sources required to conduct a performance test by §63.343(b), the notification of compliance status 

shall be submitted to the Administrator no later than 90 calendar days following completion of the 

compliance demonstration required by §63.7 and §63.343(b). 

(4) For sources that are not required to complete a performance test in accordance with §63.343(b), the 

notification of compliance status shall be submitted to the Administrator no later than 30 days after the 

compliance date specified in §63.343(a), except the date on which sources in California shall monitor the 

surface tension of the anodizing bath is extended to January 25, 1998. 

(f) Reports of performance test results. (1) If the State in which the source is located has not been delegated 

the authority to implement the rule, the owner or operator of an affected source shall report to the 

Administrator the results of any performance test conducted as required by §63.7 or §63.343(b). If the State 

has been delegated the authority, the owner or operator of an affected source should report performance 

test results to the appropriate authority. 

(2) Reports of performance test results shall be submitted no later than 90 days following the completion of 

the performance test, and shall be submitted as part of the notification of compliance status required by 

paragraph (e) of this section. 

(g) Ongoing compliance status reports for major sources. (1) The owner or operator of an affected source 

that is located at a major source site shall submit a summary report to the Administrator to document the 

ongoing compliance status of the affected source. The report shall contain the information identified in 

paragraph (g)(3) of this section, and shall be submitted semiannually except when: 

(i) The Administrator determines on a case-by-case basis that more frequent reporting is necessary to 

accurately assess the compliance status of the source; or 

(ii) The monitoring data collected by the owner or operator of the affected source in accordance with 

§63.343(c) show that the emission limit has been exceeded, in which case quarterly reports shall be 
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submitted. Once an owner or operator of an affected source reports an exceedance, ongoing compliance 

status reports shall be submitted quarterly until a request to reduce reporting frequency under paragraph 

(g)(2) of this section is approved. 

(2) Request to reduce frequency of ongoing compliance status reports. (i) An owner or operator who is 

required to submit ongoing compliance status reports on a quarterly (or more frequent basis) may reduce 

the frequency of reporting to semiannual if all of the following conditions are met: 

(A) For 1 full year (e.g., 4 quarterly or 12 monthly reporting periods), the ongoing compliance status reports 

demonstrate that the affected source is in compliance with the relevant emission limit; 

(B) The owner or operator continues to comply with all applicable recordkeeping and monitoring 

requirements of subpart A of this part and this subpart; and 

(C) The Administrator does not object to a reduced reporting frequency for the affected source, as provided 

in paragraphs (g)(2) (ii) and (iii) of this section. 

(ii) The frequency of submitting ongoing compliance status reports may be reduced only after the owner or 

operator notifies the Administrator in writing of his or her intention to make such a change, and the 

Administrator does not object to the intended change. In deciding whether to approve a reduced reporting 

frequency, the Administrator may review information concerning the source's entire previous performance 

history during the 5-year recordkeeping period prior to the intended change, or the recordkeeping period 

since the source's compliance date, whichever is shorter. Records subject to review may include 

performance test results, monitoring data, and evaluations of an owner or operator's conformance with 

emission limitations and work practice standards. Such information may be used by the Administrator to 

make a judgment about the source's potential for noncompliance in the future. If the Administrator 

disapproves the owner or operator's request to reduce reporting frequency, the Administrator will notify the 

owner or operator in writing within 45 days after receiving notice of the owner or operator's intention. The 

notification from the Administrator to the owner or operator will specify the grounds on which the disapproval 

is based. In the absence of a notice of disapproval within 45 days, approval is automatically granted. 

(iii) As soon as the monitoring data required by §63.343(c) show that the source is not in compliance with 

the relevant emission limit, the frequency of reporting shall revert to quarterly, and the owner shall state this 

exceedance in the ongoing compliance status report for the next reporting period. After demonstrating 

ongoing compliance with the relevant emission limit for another full year, the owner or operator may again 

request approval from the Administrator to reduce the reporting frequency as allowed by paragraph (g)(2) of 

this section. 

(3) Contents of ongoing compliance status reports. The owner or operator of an affected source for which 

compliance monitoring is required in accordance with §63.343(c) shall prepare a summary report to 

document the ongoing compliance status of the source. The report must contain the following information: 

(i) The company name and address of the affected source; 

(ii) An identification of the operating parameter that is monitored for compliance determination, as required 

by §63.343(c); 

(iii) The relevant emission limitation for the affected source, and the operating parameter value, or range of 

values, that correspond to compliance with this emission limitation as specified in the notification of 

compliance status required by paragraph (e) of this section; 

(iv) The beginning and ending dates of the reporting period; 

(v) A description of the type of process performed in the affected source; 

(vi) The total operating time of the affected source during the reporting period; 
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(vii) If the affected source is a hard chromium electroplating tank and the owner or operator is limiting the 

maximum cumulative rectifier capacity in accordance with §63.342(c)(2), the actual cumulative rectifier 

capacity expended during the reporting period, on a month-by-month basis; 

(viii) A summary of operating parameter values, including the total duration of excess emissions during the 

reporting period as indicated by those values, the total duration of excess emissions expressed as a percent 

of the total source operating time during that reporting period, and a breakdown of the total duration of 

excess emissions during the reporting period into those that are due to process upsets, control equipment 

malfunctions, other known causes, and unknown causes; 

(ix) A certification by a responsible official, as defined in §63.2, that the work practice standards in §63.342(f) 

were followed in accordance with the operation and maintenance plan for the source; 

(x) If the operation and maintenance plan required by §63.342(f)(3) was not followed, an explanation of the 

reasons for not following the provisions, an assessment of whether any excess emission and/or parameter 

monitoring exceedances are believed to have occurred, and a copy of the report(s) required by 

§63.342(f)(3)(iv) documenting that the operation and maintenance plan was not followed; 

(xi) A description of any changes in monitoring, processes, or controls since the last reporting period; 

(xii) The name, title, and signature of the responsible official who is certifying the accuracy of the report; and 

(xiii) The date of the report. 

(4) When more than one monitoring device is used to comply with the continuous compliance monitoring 

required by §63.343(c), the owner or operator shall report the results as required for each monitoring device. 

However, when one monitoring device is used as a backup for the primary monitoring device, the owner or 

operator shall only report the results from the monitoring device used to meet the monitoring requirements of 

this subpart. If both devices are used to meet these requirements, then the owner or operator shall report 

the results from each monitoring device for the relevant compliance period. 

(h) Ongoing compliance status reports for area sources. The requirements of this paragraph do not alleviate 

affected area sources from complying with the requirements of State or Federal operating permit programs 

under 40 CFR part 71. 

(1) The owner or operator of an affected source that is located at an area source site shall prepare a 

summary report to document the ongoing compliance status of the affected source. The report shall contain 

the information identified in paragraph (g)(3) of this section, shall be completed annually and retained on 

site, and made available to the Administrator upon request. The report shall be completed annually except 

as provided in paragraph (h)(2) of this section. 

(2) Reports of exceedances. (i) If both of the following conditions are met, semiannual reports shall be 

prepared and submitted to the Administrator: 

(A) The total duration of excess emissions (as indicated by the monitoring data collected by the owner or 

operator of the affected source in accordance with §63.343(c)) is 1 percent or greater of the total operating 

time for the reporting period; and 

(B) The total duration of malfunctions of the add-on air pollution control device and monitoring equipment is 

5 percent or greater of the total operating time. 

(ii) Once an owner or operator of an affected source reports an exceedance as defined in paragraph (h)(2)(i) 

of this section, ongoing compliance status reports shall be submitted semiannually until a request to reduce 

reporting frequency under paragraph (h)(3) of this section is approved. 
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(iii) The Administrator may determine on a case-by-case basis that the summary report shall be completed 

more frequently and submitted, or that the annual report shall be submitted instead of being retained on site, 

if these measures are necessary to accurately assess the compliance status of the source. 

(3) Request to reduce frequency of ongoing compliance status reports. (i) An owner or operator who is 

required to submit ongoing compliance status reports on a semiannual (or more frequent) basis, or is 

required to submit its annual report instead of retaining it on site, may reduce the frequency of reporting to 

annual and/or be allowed to maintain the annual report onsite if all of the following conditions are met: 

(A) For 1 full year (e.g., 2 semiannual or 4 quarterly reporting periods), the ongoing compliance status 

reports demonstrate that the affected source is in compliance with the relevant emission limit; 

(B) The owner or operator continues to comply with all applicable recordkeeping and monitoring 

requirements of subpart A of this part and this subpart; and 

(C) The Administrator does not object to a reduced reporting frequency for the affected source, as provided 

in paragraphs (h)(3) (ii) and (iii) of this section. 

(ii) The frequency of submitting ongoing compliance status reports may be reduced only after the owner or 

operator notifies the Administrator in writing of his or her intention to make such a change, and the 

Administrator does not object to the intended change. In deciding whether to approve a reduced reporting 

frequency, the Administrator may review information concerning the source's previous performance history 

during the 5-year recordkeeping period prior to the intended change, or the recordkeeping period since the 

source's compliance date, whichever is shorter. Records subject to review may include performance test 

results, monitoring data, and evaluations of an owner or operator's conformance with emission limitations 

and work practice standards. Such information may be used by the Administrator to make a judgement 

about the source's potential for noncompliance in the future. If the Administrator disapproves the owner or 

operator's request to reduce reporting frequency, the Administrator will notify the owner or operator in writing 

within 45 days after receiving notice of the owner or operator's intention. The notification from the 

Administrator to the owner or operator will specify the grounds on which the disapproval is based. In the 

absence of a notice of disapproval within 45 days, approval is automatically granted. 

(iii) As soon as the monitoring data required by §63.343(c) show that the source is not in compliance with 

the relevant emission limit, the frequency of reporting shall revert to semiannual, and the owner shall state 

this exceedance in the ongoing compliance status report for the next reporting period. After demonstrating 

ongoing compliance with the relevant emission limit for another full year, the owner or operator may again 

request approval from the Administrator to reduce the reporting frequency as allowed by paragraph (h)(3) of 

this section. 

(i) Reports associated with trivalent chromium baths. The requirements of this paragraph do not alleviate 

affected sources from complying with the requirements of State or Federal operating permit programs under 

title V. Owners or operators complying with the provisions of §63.342(e) are not subject to paragraphs (a) 

through (h) of this section, but must instead submit the following reports: 

(1) Within 180 days after January 25, 1995, submit an initial notification that includes: 

(i) The same information as is required by paragraphs (c)(1) (i) through (v) of this section; and 

(ii) A statement that a trivalent chromium process that incorporates a wetting agent will be used to comply 

with §63.342(e); and 

(iii) The list of bath components that comprise the trivalent chromium bath, with the wetting agent clearly 

identified; and 

(2) Within 30 days of the compliance date specified in §63.343(a), a notification of compliance status that 

contains an update of the information submitted in accordance with paragraph (i)(1) of this section or a 

statement that the information is still accurate; and 
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(3) Within 30 days of a change to the trivalent chromium electroplating process, a report that includes: 

(i) A description of the manner in which the process has been changed and the emission limitation, if any, 

now applicable to the affected source; 

(ii) If a different emission limitation applies, the applicable information required by paragraph (c)(1) of this 

section; and 

(iii) The notification and reporting requirements of paragraphs (d), (e), (f), (g), and (h) of this section, which 

shall be submitted in accordance with the schedules identified in those paragraphs. 

[60 FR 4963, Jan. 25, 1995, as amended at 61 FR 27787, June 3, 1996; 62 FR 4465, Jan. 30, 1997, 62 FR 

42921, Aug. 11, 1997; 69 FR 42897, July 19, 2004] 

§ 63.348 Implementation and enforcement. 

(a) This subpart can be implemented and enforced by the U.S. EPA, or a delegated authority such as the 

applicable State, local, or Tribal agency. If the U.S. EPA Administrator has delegated authority to a State, 

local, or Tribal agency, then that agency, in addition to the U.S. EPA, has the authority to implement and 

enforce this subpart. Contact the applicable U.S. EPA Regional Office to find out if implementation and 

enforcement of this subpart is delegated to a State, local, or Tribal agency. 

(b) In delegating implementation and enforcement authority of this subpart to a State, local, or Tribal agency 

under subpart E of this part, the authorities contained in paragraph (c) of this section are retained by the 

Administrator of U.S. EPA and cannot be transferred to the State, local, or Tribal agency. 

(c) The authorities that cannot be delegated to State, local, or Tribal agencies are as specified in paragraphs 

(c)(1) through (4) of this section. 

(1) Approval of alternatives to the requirements in §§63.340, 63.342(a) through (e) and (g), and 63.343(a). 

(2) Approval of major alternatives to test methods under §63.7(e)(2)(ii) and (f), as defined in §63.90, and as 

required in this subpart. 

(3) Approval of major alternatives to monitoring under §63.8(f), as defined in §63.90, and as required in this 

subpart. 

(4) Approval of major alternatives to recordkeeping and reporting under §63.10(f), as defined in §63.90, and 

as required in this subpart. 

[68 FR 37347, June 23, 2003] 

Table 1 to Subpart N of Part 63—General Provisions Applicability to Subpart N 

General 

provisions 

reference 

Applies 

to 

subpart 

N Comment 

63.1(a)(1) Yes Additional terms defined in §63.341; when overlap between 

subparts A and N occurs, subpart N takes precedence. 

63.1(a)(2) Yes 
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63.1(a)(3) Yes 

63.1(a)(4) Yes Subpart N clarifies the applicability of each paragraph in 

subpart A to sources subject to subpart N. 

63.1(a)(6) Yes 

63.1(a)(7) Yes 

63.1(a)(8) Yes 

63.1(a)(10) Yes 

63.1(a)(11) Yes §63.347(a) of subpart N also allows report submissions via 

fax and on electronic media. 

63.1(a)(12)–(14) Yes 

63.1(b)(1) No §63.340 of subpart N specifies applicability. 

63.1(b)(2) Yes 

63.1(b)(3) No This provision in subpart A is being deleted. Also, all 

affected area and major sources are subject to subpart N; 

there are no exemptions. 

63.1(c)(1) Yes Subpart N clarifies the applicability of each paragraph in 

subpart A to sources subject to subpart N. 

63.1(c)(2) Yes §63.340(e) of Subpart N exempts area sources from the 

obligation to obtain Title V operating permits. 

63.1(c)(4) Yes 

63.1(c)(5) No Subpart N clarifies that an area source that becomes a major 

source is subject to the requirements for major sources. 

63.1(e) Yes 

63.2 Yes Additional terms defined in §63.341; when overlap between 

subparts A and N occurs, subpart N takes precedence. 

63.3 Yes Other units used in subpart N are defined in that subpart. 

63.4 Yes 

63.5(a) Yes Except replace the term “source” and “stationary source” in 

§63.5(a) (1) and (2) of subpart A with “affected sources.” 

63.5(b)(1) Yes 

63.5(b)(3) Yes Applies only to major affected sources. 
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63.5(b)(4) No Subpart N (§63.345) specifies requirements for the 

notification of construction or reconstruction for affected 

sources that are not major. 

63.5(b)(5) Yes 

63.5(b)(6) Yes 

63.5(d)(1)(i) No §63.345(c)(5) of subpart N specifies when the application 

or notification shall be submitted. 

63.5(d)(1)(ii) Yes Applies to major affected sources that are new or 

reconstructed. 

63.5(d)(1)(iii) Yes Except information should be submitted with the 

Notification of Compliance Status required by §63.347(e) 

of subpart N. 

63.5(d)(2) Yes Applies to major affected sources that are new or 

reconstructed except: (1) replace “source” in §63.5(d)(2) of 

subpart A with “affected source”; and (2) actual control 

efficiencies are submitted with the Notification of 

Compliance Status required by §63.347(e). 

63.5(d)(3)–(4) Yes Applies to major affected sources that are new or 

reconstructed. 

63.5(e) Yes Applies to major affected sources that are new or 

reconstructed. 

63.5(f)(1) Yes Except replace “source” in §63.5(f)(1) of subpart A with 

“affected source.” 

63.5(f)(2) No New or reconstructed affected sources shall submit the 

request for approval of construction or reconstruction under 

§63.5(f) of subpart A by the deadline specified in 

§63.345(c)(5) of subpart N. 

63.6(a) Yes 

63.6(b)(1)–(2) Yes Except replace “source” in §63.6(b)(1)–(2) of part A with 

“affected source.” 

63.6(b)(3)–(4) Yes 

63.6(b)(5) Yes Except replace “source” in §63.6(b)(5) of subpart A with 

“affected source.” 

63.6(b)(7) No Provisions for new area sources that become major sources 

are contained in §63.343(a)(4) of subpart N. 
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63.6(c)(1)–(2) Yes Except replace “source” in §63.6(c)(1)–(2) of subpart A 

with “affected source.” 

63.6(c)(5) No Compliance provisions for existing area sources that 

become major sources are contained in §63.343(a)(3) of 

subpart N. 

63.6(e) No §63.342(f) of subpart N contains work practice standards 

(operation and maintenance requirements) that override 

these provisions. 

63.6(f)(1) No §63.342(b) of subpart N specifies when the standards apply.

63.6(f)(2)(i)–(ii) Yes 

63.6(f)(2)(iii) No §63.344(b) of subpart N specifies instances in which 

previous performance test results for existing sources are 

acceptable. 

63.6(f)(2)(iv) Yes 

63.6(f)(2)(v) Yes 

63.6(f)(3) Yes 

63.6(g) Yes 

63.6(h) No Subpart N does not contain any opacity or visible emission 

standards. 

63.6(i)(1) Yes 

63.6(i)(2) Yes Except replace “source” in §63.6(i)(2)(i) and (ii) of subpart 

A with “affected source.” 

63.6(i)(3) Yes 

63.6(i)(4)(i) No §63.343(a)(6) of subpart N specifies the procedures for 

obtaining an extension of compliance and the date by which 

such requests must be submitted. 

63.6(i)(4)(ii) Yes 

63.6(i)(5) Yes 

63.6(i)(6)(i) Yes This paragraph only references “paragraph (i)(4) of this 

section” for compliance extension provisions. But, 

§63.343(a)(6) of subpart N also contains provisions for 

requesting a compliance extension. 

63.6(i)(6)(ii) Yes 
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63.6(i)(7) Yes 

63.6(i)(8) Yes This paragraph only references “paragraphs (i)(4) through 

(i)(6) of this section” for compliance extension provisions. 

But, §63.343(a)(6) of subpart N also contains provisions for 

requesting a compliance extension. 

63.6(i)(9) Yes This paragraph only references “paragraphs (i)(4) through 

(i)(6) of this section” and “paragraphs (i)(4) and (i)(5) of 

this section” for compliance extension provisions. But, 

§63.343(a)(6) of subpart N also contains provisions for 

requesting a compliance extension. 

63.6(i)(10)(i)–

(iv) 

Yes 

63.6(i)(10)(v)(A) Yes This paragraph only references “paragraph (i)(4)” for 

compliance extension provisions. But, §63.343(a)(6) of 

subpart N also contains provisions for requesting a 

compliance extension. 

63.6(i)(10)(v)(B) Yes 

63.6(i)(11) Yes 

63.6(i)(12)(i) Yes This paragraph only references “paragraph (i)(4)(i) or (i)(5) 

of this section” for compliance extension provisions. But, 

§63.343(a)(6) of subpart N also contains provisions for 

requesting a compliance extension. 

63.6(i)(12)(ii)–

(iii) 

Yes 

63.6(i)(13) Yes 

63.6(i)(14) Yes 

63.6(i)(16) Yes 

63.6(j) Yes 

63.7(a)(1) Yes 

63.7(a)(2)(i)–(vi) Yes 

63.7(a)(2)(ix) Yes 

63.7(a)(3) Yes 

63.7(b)(1) No §63.347(d) of subpart N requires notification prior to the 

performance test. §63.344(a) of subpart N requires 
Metal Finishing Co., Inc. Page 35 of 38 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

submission of a site-specific test plan upon request. 

63.7(b)(2) Yes 

63.7(c) No §63.344(a) of subpart N specifies what the test plan should 

contain, but does not require test plan approval or 

performance audit samples. 

63.7(d) Yes Except replace “source” in the first sentence of §63.7(d) of 

subpart A with “affected source.” 

63.7(e) Yes Subpart N also contains test methods specific to affected 

sources covered by that subpart. 

63.7(f) Yes §63.344(c)(2) of subpart N identifies CARB Method 425 as 

acceptable under certain conditions. 

63.7(g)(1) No Subpart N identifies the items to be reported in the 

compliance test [§63.344(a)] and the timeframe for 

submitting the results [§63.347(f)]. 

63.7(g)(3) Yes 

63.7(h)(1)–(2) Yes 

63.7(h)(3)(i) Yes This paragraph only references “§63.6(i)” for compliance 

extension provisions. But, §63.343(a)(6) of subpart N also 

contains provisions for requesting a compliance extension. 

63.7(h)(3)(ii)–

(iii) 

Yes 

63.7(h)(4)–(5) Yes 

63.8(a)(1) Yes 

63.8(a)(2) No Work practice standards are contained in §63.342(f) of 

subpart N. 

63.8(a)(4) No 

63.8(b)(1) Yes 

63.8(b)(2) No §63.344(d) of subpart N specifies the monitoring location 

when there are multiple sources. 

63.8(b)(3) No §63.347(g)(4) of subpart N identifies reporting 

requirements when multiple monitors are used. 

63.8(c)(1)(i) No Subpart N requires proper maintenance of monitoring 

devices expected to be used by sources subject to subpart 

N. 
Metal Finishing Co., Inc. Page 36 of 38 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

63.8(c)(1)(ii) No §63.342(f)(3)(iv) of subpart N specifies reporting when the 

O&M plan is not followed. 

63.8(c)(1)(iii) No §63.343(f)(2) identifies the criteria for whether O&M 

procedures are acceptable. 

63.8(c)(2)–(3) No §63.344(d)(2) requires appropriate use of monitoring 

devices. 

63.8(c)(4)–(7) No 

63.8(d) No Maintenance of monitoring devices is required by 

§§63.342(f) and 63.344(d)(2) of subpart N. 

63.8(e) No There are no performance evaluation procedures for the 

monitoring devices expected to be used to comply with 

subpart N. 

63.8(f)(1) Yes 

63.8(f)(2) No Instances in which the Administrator may approve 

alternatives to the monitoring methods and procedures of 

subpart N are contained in §63.343(c)(8) of subpart N. 

63.8(f)(3) Yes 

63.8(f)(4) Yes 

63.8(f)(5) Yes 

63.8(f)(6) No Subpart N does not require the use of CEM's. 

63.8(g) No Monitoring data does not need to be reduced for reporting 

purposes because subpart N requires measurement 

once/day. 

63.9(a) Yes 

63.9(b)(1)(i)–(ii) No §63.343(a)(3) of subpart N requires area sources to comply 

with major source provisions if an increase in HAP 

emissions causes them to become major sources. 

63.9(b)(1)(iii) No §63.347(c)(2) of subpart N specifies initial notification 

requirements for new or reconstructed affected sources. 

63.9(b)(2) No §63.347(c)(1) of subpart N specifies the information to be 

contained in the initial notification. 

63.9(b)(3) No §63.347(c)(2) of subpart N specifies notification 

requirements for new or reconstructed sources that are not 

major affected sources. 
Metal Finishing Co., Inc. Page 37 of 38 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

63.9(b)(4) No 

63.9(b)(5) No 

63.9(c) Yes This paragraph only references “§63.6(i)(4) through 

§63.6(i)(6)” for compliance extension provisions. But, 

§63.343(a)(6) of subpart N also contains provisions for 

requesting a compliance extension. Subpart N provides a 

different timeframe for submitting the request than 

§63.6(i)(4). 

63.9(d) Yes This paragraph only references “the notification dates 

established in paragraph (g) of this section.” But, §63.347 

of subpart N also contains notification dates. 

63.9(e) No Notification of performance test is required by §63.347(d) 

of subpart N. 

63.9(f) No 

63.9(g) No Subpart N does not require a performance evaluation or 

relative accuracy test for monitoring devices. 

63.9(h)(1)–(3) No §63.347(e) of subpart N specifies information to be 

contained in the notification of compliance status and the 

timeframe for submitting this information. 

63.9(h)(5) No Similar language has been incorporated into 

§63.347(e)(2)(iii) of subpart N. 

63.9(h)(6) Yes 

63.9(i) Yes 

63.9(j) Yes 

63.10(a) Yes 

63.10(b)(1) Yes 

63.10(b)(2) No §63.346(b) of subpart N specifies the records that must be 

maintained. 

63.10(b)(3) No Subpart N applies to major and area sources. 

63.10(c) No Applicable requirements of §63.10(c) have been 

incorporated into §63.346(b) of subpart N. 

63.10(d)(1) Yes 

63.10(d)(2) No §63.347(f) of subpart N specifies the timeframe for 

reporting performance test results. 
Metal Finishing Co., Inc. Page 38 of 38 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

63.10(d)(3) No Subpart N does not contain opacity or visible emissions 

standards. 

63.10(d)(4) Yes 

63.10(d)(5) No §63.342(f)(3)(iv) and §63.347(g)(3) of subpart N specify 

reporting associated with malfunctions. 

63.10(e) No §63.347(g) and (h) of subpart N specify the frequency of 

periodic reports of monitoring data used to establish 

compliance. Applicable requirements of §63.10(e) have 

been incorporated into §63.347(g) and (h). 

63.10(f) Yes 

63.11 No Flares will not be used to comply with the emission limits. 

63.12–63.15 Yes 

[60 FR 4963, Jan. 25, 1995, as amended at 61 FR 27787, June 3, 1996; 70 FR 75345, Dec. 19, 2005] 
Indiana Department of Environmental Management 

Office of Air Quality 

Technical Support Document (TSD) for a Minor Source Operating Permit Renewal 

Source Background and Description 

Source Name: Metal Finishing Co., Inc. 

Source Location: 3901 East 29th Street, Indianapolis, IN 

County: Marion 

SIC Code: 3471 

Permit Renewal No.: 097-25773-00396 

Permit Reviewer: Jillian Bertram 

The Office of Air Quality (OAQ) has reviewed the operating permit renewal application from Metal 

Finishing Co., Inc. relating to the operation of a decorative chromium electroplating operation. 

History

On December 20, 2007, Metal Finishing Co., Inc. submitted an application to the OAQ requesting to 

renew its operating permit. Metal Finishing Co., Inc. was issued an initial MSOP on March 19, 2003. 

Permitted Emission Units and Pollution Control Equipment 

(a) One (1) decorative chromium electroplating operation consisting of one (1) decorative 

chromium electroplating tank, identified as CT1, using a hexavalent chromium bath with 

maximum rectifier capacity of 2,000 amps and a maximum cumulative rectifier capacity of 

11,760,000 amp-hours, with wetting agent fume suppressant as chromium control, 

constructed in August 1984. This unit is an affected unit under NESHAP Subpart N 

(Chromium Emissions From Hard and Decorative Chromium Electroplating and 

Chromium Anodizing Tanks). 

(b) One (1) natural gas fueled boiler, identified as B1, with a maximum heat input capacity of 

0.0135 MMBtu/hr, constructed in August 1984.

Emission Units and Pollution Control Equipment Constructed and/or Operated without a Permit 

The source also consists of the following emission units that were constructed and/or is operating 

without a permit: 

(a) One (1) nickel electroplanting operation consisting of one(1) nickel electroplating tank, 

identified as NT1, using a nickel sulfate, nickel chloride, and boric acid bath with maximum 

rectifier capacity of 1,000 amps, constructed in August 1984. This unit is an affected unit 

under NESHAP Subpart WWWWWW (Area Source Standards for Plating and Polishing 

Operations). 

(b) One (1) totally enclosed pnuematic sand blasting cabinet, identified as SBC1, using 

chinese emory, using a built-in cyclone as contol and exhausting inside the building, 

constructed in July 1989. 

(c) One (1) natural fueled heater, identified as H1, with a maximum heat input capacity of 13 

MMBtu/hr, constructed in August 1984. 
Metal Finishing Co., Inc. Page 2 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

Existing Approvals 

Since the issuance of the MSOP (097-12669-00396) on March 19, 2003, the source has not been 

issued any additional approvals. 

All terms and conditions of previous permits issued pursuant to permitting programs approved 

into the state implementation plan have been either incorporated as originally stated, revised, or 

deleted by this permit. All previous registrations and permits are superseded by this permit. 

Enforcement Issue 

IDEM is aware that equipment has been constructed and operated prior to receipt of the proper 

permit. The subject equipment is listed in this Technical Support Document under the condition 

entitled “Emission Units and Pollution Control Equipment Constructed and/or Operated without a 

Permit”.

(a) IDEM is reviewing this matter and will take appropriate action. This proposed permit is 

intended to satisfy the requirements of the construction permit rules. 

(b) IDEM is reviewing this matter and will take appropriate action. The compliance schedule 

in this proposed permit will satisfy the requirements of the above stated requirement. 

Emission Calculations 

See Appendix A of this document for detailed emission calculations. 

County Attainment Status 

The source is located in Marion County 

Pollutant Designation 

SO2 Better than national standards. 

CO Attainment effective February 18, 2000, for the part of the city of Indianapolis bounded 

by 11th Street on the north; Capitol Avenue on the west; Georgia Street on the south; 

and Delaware Street on the east. Unclassifiable or attainment effective November 15, 

1990, for the remainder of Indianapolis and Marion County. 

O3 Attainment effective November 8, 2007, for the 8-hour ozone standard.1

PM10 Unclassifiable effective November 15, 1990. 

NO2 Cannot be classified or better than national standards. 

Pb Attainment effective July 10, 2000, for the part of Franklin Township bounded by 

Thompson Road on the south; Emerson Avenue on the west; Five Points Road on the 

east; and Troy Avenue on the north. Attainment effective July 10, 2000, for the part of 

Wayne Township bounded by Rockville Road on the north; Girls School Road on the 

east; Washington Street on the south; and Bridgeport Road on the west. The remainder 

of the county is not designated. 

1

Attainment effective October 18, 2000, for the 1-hour ozone standard for the Indianapolis area, 

including Marion County, and is a maintenance area for the 1-hour ozone National Ambient Air Quality 

Standards (NAAQS) for purposes of 40 CFR 51, Subpart X*. The 1-hour designation was revoked 

effective June 15, 2005. 

Basic nonattainment designation effective federally April 5, 2005, for PM2.5. 
Metal Finishing Co., Inc. Page 3 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

(a) Ozone Standards 

(1) On October 25, 2006, the Indiana Air Pollution Control Board finalized a rule 

revision to 326 IAC 1-4-1 revoking the one-hour ozone standard in Indiana. 

(2) On September 6, 2007, the Indiana Air Pollution Control Board finalized a 

temporary emergency rule to re-designate Allen, Clark, Elkhart, Floyd, LaPorte, 

and St. Joseph Counties as attainment for the 8-hour ozone standard. 

(3) On November 9, 2007, the Indiana Air Pollution Control Board finalized a 

temporary emergency rule to re-designate Boone, Clark, Elkhart, Floyd, LaPorte, 

Hamilton, Hancock, Hendricks, Johnson, Madison, Marion, Morgan, Shelby, and 

St. Joseph Counties as attainment for the 8-hour ozone standard. 

 (4) Volatile organic compounds (VOC) and Nitrogen Oxides (NOx) are regulated 

under the Clean Air Act (CAA) for the purposes of attaining and maintaining the 

National Ambient Air Quality Standards (NAAQS) for ozone. Therefore, VOC 

and NOx emissions are considered when evaluating the rule applicability relating 

to ozone. Marion County has been designated as attainment or unclassifiable for 

ozone. Therefore, VOC and NOx emissions were reviewed pursuant to the 

requirements for Prevention of Significant Deterioration (PSD), 326 IAC 2-2. 

 (b) PM2.5 

Marion County has been classified as nonattainment for PM2.5 in 70 FR 943 dated 

January 5, 2005. On May 8th, 2008, U.S. EPA promulgated specific New Source Review 

rules for PM2.5 emissions, and the effective date of these rules was July 15th, 2008. 

Therefore, direct PM2.5 and SO2 emissions were reviewed pursuant to the requirements 

of Nonattainment New Source Review, 326 IAC 2-1.1-5. See the State Rule Applicability 

– Entire Source section. 

(c) Other Criteria Pollutants 

Marion County has been classified as attainment or unclassifiable in Indiana for all other 

criteria pollutants. Therefore, these emissions were reviewed pursuant to the 

requirements for Prevention of Significant Deterioration (PSD), 326 IAC 2-2. 

(d) Fugitive Emissions 

Since this type of operation is not one of the twenty-eight (28) listed source categories 

under 326 IAC 2-2 or 326 IAC 2-3, fugitive emissions are not counted toward the 

determination of PSD and Emission Offset applicability. 

Unrestricted Potential Emissions 

This table reflects the unrestricted potential emissions of the source. 

Pollutant tons/year 

PM 12.77 

PM10 13.09 

PM2.5 13.09 

SO2 0.03 

VOC 0.31 

CO 4.79 

NOx 5.70 
Metal Finishing Co., Inc. Page 4 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

HAPs tons/year 

Nickel 0.39 

Chromium 0.04 

Hexane 0.10 

Total 0.54 

 Appendix A of this TSD reflects the unrestricted potential emissions of the source. 

 (a) Even though the PTE of each pollutant is less than 25 tons/yr, the existing source is 

subject to 326 IAC 20-8, but not subject to 326 IAC 2-5.5-1(b)(2)(Registration) because 

the source uses hexavalent chromium for decorative coating as opposed to trivalent 

chromium, and the potential to emit (as defined in 326 IAC 2-7-1(29)) of all criteria 

pollutants is less than 100 tons per year. The source is subject to the provisions of 326 

IAC 2-6.1. Therefore, the source will be issued an MSOP Renewal. 

(b) The potential to emit (as defined in 326 IAC 2-7-1(29)) of any single HAP is less than ten 

(10) tons per year and/or the potential to emit (as defined in 326 IAC 2-7-1(29)) of a 

combination of HAPs is less than twenty-five (25) tons per year. 

(c) Since this type of operation is not one of the twenty-eight (28) listed source categories 

under 326 IAC 2-7, fugitive emissions are not counted toward the determination of Part 70 

applicability. 

Potential to Emit After Issuance 

 

 Potential To Emit (tons/year) 

Process/ 

Emission Unit PM PM10 PM2.5 SO2 VOC CO NOx HAPs 

SBC1 12.57 12.57 12.57 0.00 0.00 0.00 0.00 0.00 

NT1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.39 

CT1 0.09 0.09 0.09 0.00 0.00 0.00 0.00 0.04 

B1 negl. negl. negl. negl. negl. negl. 0.01 negl. 

H1 0.11 0.43 0.43 0.03 0.31 4.78 5.69 0.11 

Total Emissions 12.77 13.09 13.09 0.03 0.31 4.79 5.70 0.54 

 (a) This existing stationary source is not major for PSD because the emissions of each 

criteria pollutant are less than two hundred fifty (<250) tons per year, and it is not one of 

the twenty-eight (28) listed source categories. 

 (b) Fugitive Emissions 

Since this type of operation is not one of the twenty-eight (28) listed source categories 

under 326 IAC 2-2 or 326 IAC 2-3, fugitive emissions are not counted toward the 

determination of PSD and Emission Offset applicability. 

Federal Rule Applicability 

 (a) There are no New Source Performance Standards (NSPS) (326 IAC 12 and 40 CFR Part 

60) included in the permit for this source. 

 (b) The Nickel electroplating tank, NT1 is subject to the National Emission Standards for 
Metal Finishing Co., Inc. Page 5 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

Hazardous Air Pollutants for Area Source Standards for Plating and Polishing Operations 

(40 CFR 63.1150, Subpart WWWWWW). The compliance date for NT1 is July 1, 2010. 

This nickel electroplating tank engages electroplating other than chromium electroplating. 

The units subject to this rule include the following: 

 NT1 

Non applicable portions of the NESHAP will not be included in the permit. NT1 is subject 

to the following portions of Subpart WWWWWW. 

(1) 40 CFR 63.11504 (a)(1)(i) 

(2) 40 CFR 63.11504 (a)(2)-(3) 

(3) 40 CFR 63.11505 (a)(1) 

(4) 40 CFR 63.11505 (c)(e) 

(5) 40 CFR 63.11506 (a) 

(6) 40 CFR 63.11507 (d)(1)-(2) 

(7) 40 CFR 63.11507 (g) 

(8) 40 CFR 63.11508 (a)-(b) 

(9) 40 CFR 63.11508 (c)(7) 

(10) 40 CFR 63.11508 (d)(1)-(3) 

(11) 40 CFR 63.11508 (d)(8) 

(12) 40 CFR 63.11509 (a)-(b) 

(13) 40 CFR 63.11509 (c)(6)-(7) 

(14) 40 CFR 63.11509 (d)-(f) 

(15) 40 CFR 63.11510 

(16) 40 CFR 63.11511 

(17) 40 CFR 63.11512 

The provisions of 40 CFR 63 Subpart A – General Provisions, which are incorporated as 

326 IAC 20-1-1, apply to the facility described in this section except when otherwise 

specified in 40 CFR 63 Subpart WWWWWW. 

(c) The chromium electroplating tank, CT1 is subject to the National Emission Standards for 

Hazardous Air Pollutants for Chromium Emissions From Hard and Decorative Chromium 

Electroplating and Chromium Anodizing Tanks (40 CFR 63.34, Subpart N). This 

chromium electroplating tank engages in decorative chrome plating. The units subject to 

this rule include the following: 

 CT1 

Non applicable portions of the NESHAP will not be included in the permit. CT1 is subject 

to the following portions of Subpart N. 

(1) 40 CFR 63.340 (a)-(c) 

(2) 40 CFR 63.340 (e) 

(3) 40 CFR 63.341 

(4) 40 CFR 63.342 (a)-(b)(1) 

(5) 40 CFR 63.342 (d)(1)-(2) 

(6) 40 CFR 63.342 (f)(1)-(3) 

(7) 40 CFR 63.342 (g) 

(8) 40 CFR 63.343 (a)(1)(i) 

(9) 40 CFR 63.343 (a)(3) 

(10) 40 CFR 63.343 (a)(6) 

(11) 40 CFR 63.343 (b)(2) 

(12) 40 CFR 63.343 (c)(5) 

(13) 40 CFR 63.346 (a)-(c) 
Metal Finishing Co., Inc. Page 6 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

(14) 40 CFR 63.347 (a)-(c) 

(15) 40 CFR 63.347 (e)(1)-(2) 

(16) 40 CFR 63.347 (e)(4) 

(17) 40 CFR 63.347 (f) 

(18) 40 CFR 63.347 (h) 

(19) 40 CFR 63.348 

The provisions of 40 CFR 63 Subpart A – General Provisions, which are incorporated as 

326 IAC 20-1-1, apply to the facility described in this section except when otherwise 

specified in 40 CFR 63 Subpart N. 

(d) There are no other National Emission Standards for Hazardous Air Pollutants 

(NESHAPs) (326 IAC 14, 326 IAC 20 and 40 CFR Part 63) included in the permit. 

(e) Pursuant to 40 CFR 64.2, Compliance Assurance Monitoring (CAM) is not included in the 

permit, because the unlimited potential to emit of the source is less than the Title V major 

source thresholds and the source is not required to obtain a Part 70 or Part 71 permit. 

State Rule Applicability - Entire Source 

326 IAC 1-6-3 (Preventive Maintenance Plan) 

The source is subject to 326 IAC 1-6-3. 

326 IAC 1-5-2 (Emergency Reduction Plans) 

The source is subject to 326 IAC 1-5-2. 

326 IAC 2-6 (Emission Reporting) 

This source is located in Marion County and the potential to emit of each criteria pollutant is less 

than one hundred (100) tons per year. Therefore, 326 IAC 2-6 does not apply. 

326 IAC 5-1 (Opacity Limitations) 

Pursuant to 326 IAC 5-1-2 (Opacity Limitations), except as provided in 326 IAC 5-1-3 (Temporary 

Exemptions), opacity shall meet the following, unless otherwise stated in the permit: 

(a) Opacity shall not exceed an average of thirty percent (30%) in any one (1) six (6) minute 

averaging period as determined in 326 IAC 5-1-4. 

(b) Opacity shall not exceed sixty percent (60%) for more than a cumulative total of fifteen 

(15) minutes (sixty (60) readings as measured according to 40 CFR 60, Appendix A, 

Method 9 or fifteen (15) one (1) minute nonoverlapping integrated averages for a 

continuous opacity monitor) in a six (6) hour period. 

326 IAC 6.5 (Particulate Matter Limitations Except Lake County) 

Metal Finishing Co., Inc. is not specifically listed in 326 IAC 6.5-6, the potential to emit particulate 

of the source is less than 100 tons/year, and the actual particulate emissions from the source are 

less than 10 tons/year, therefore, the requirements on 326 IAC 6.5 do not apply. 

State Rule Applicability – Individual Facilities 

Sand Blasting Cabinet (SBC1)

 

326 IAC 6-3-2 (Particulate Emissions from Manufacturing Processes) 

Pursuant to 326 IAC 6-3-2(e)(2), particulate emissions from SBC1 shall not exceed 0.551 lbs/hr. 

The pounds per hour limitation was calculated using the following equation: 
Metal Finishing Co., Inc. Page 7 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

Interpolation of the data for the process weight less than 100 lbs per hour shall be accomplished 

by use of the following equation: 

E = 0.551 lbs/hr where E = Particulate Emission Limitation in lbs/hr 

The built-in cyclone system must be in operation at all times the sand blasting cabinet is in 

operation in order to comply with this limit. 

Chromium Electroplating Tank (CT1)

326 IAC 6-3-2 (Particulate Emission Limitations for Manufacturing Processes) 

Pursuant to 326 IAC 6-3-1(b)(12), CT1 is exempt from the requirements of 326 IAC 6-3-2 

because the potential to emit particulate from the tank is less than 0.551 lbs/hr. 

Boiler (B1)

326 IAC 6-2-4 (Particulate Limitations for Sources of Indirect Heating) 

Pursuant to 326 IAC 6-2-4, the particulate emissions from the heater shall not exceed 0.6 

lbs/MMBtu. 

This limitation is based on the following equation: 

Pt shall not exceed 0.6. where Pt = pounds of particulate emitted per million Btu (lb/MMBtu) heat 

Compliance Determination and Monitoring Requirements 

There are no applicable compliance determination and monitoring requirements for this source.

Recommendation 

The staff recommends to the Commissioner that the MSOP Renewal be approved. This 

recommendation is based on the following facts and conditions: 

Unless otherwise stated, information used in this review was derived from the application and 

additional information submitted by the applicant. 

An application for the purposes of this review was received on December 20, 2007. Additional 

information was received on March 31, 2009. 

Conclusion 

The operation of this decorative chromium electroplating operation shall be subject to the 

conditions of the attached MSOP Renewal No. 097-25773-00396. 

IDEM Contact 

(a) Questions regarding this proposed permit can be directed to Jillian Bertram at the Indiana 

Department Environmental Management, Office of Air Quality, Permits Branch, 100 North Senate 

Avenue, MC 61-53 IGCN 1003, Indianapolis, Indiana 46204-2251 or by telephone at (317)234-

5377 or toll free at 1-800-451-6027 extension 4-5377. 

(b) A copy of the findings is available on the Internet at: http://www.in.gov/ai/appfiles/idem-caats/
Metal Finishing Co., Inc. Page 8 of 8 

Indianapolis, Indiana M097-25773-00396 

Permit Reviewer: Jillian Bertram 

(c) For additional information about air permits and how the public and interested parties can 

participate, refer to the IDEM’s Guide for Citizen Participation and Permit Guide on the Internet at: 

www.idem.in.gov
Page 1 of 8 TSD App A

Permit Number: 

Reviewer: 

Date: 

Emission Factor

Abrasive lb PM / lb abrasive lb PM10 / lb PM Abrasive Density (lb/ft3)

Sand 0.041 0.70 Al oxides 160

Grit 0.010 0.70 Sand 99

Steel Shot 0.004 0.86 Steel 487

Other 0.010

Nozzle Pressure (psig)

Internal diameter, in 30 40 50 60 70 80 90 100

1/8 28 35 42 49 55 63 70 77

3/16 65 80 94 107 122 135 149 165

1/4 109 138 168 195 221 255 280 309

5/16 205 247 292 354 377 420 462 507

3/8 285 355 417 477 540 600 657 720

7/16 385 472 560 645 755 820 905 940

1/2 503 615 725 835 945 1050 1160 1265

5/8 820 990 1170 1336 1510 1680 1850 2030

3/4 1140 1420 1670 1915 2160 2400 2630 2880

1 2030 2460 2900 3340 3780 4200 4640 5060

 Calculations

70

99

99

0.125

0.125

Flow Rate (FR) (lb/hr) = 70.000 per nozzle

Uncontrolled Emissions (E, lb/hr)

0.041

70.000

0 %

1

Uncontrolled Emissions = 2.87 lb/hr

12.57 ton/yr

1.26 ton/yr

METHODOLOGY

controlled emissions = uncontrolled emissions (tons/yr) * (1- 90% cyclone efficiency)

w should be entered in as a whole number (if w is 50%, enter 50)

E = EF x FR x (1-w/200) x N

Flow Rate (FR) (lb/hr) = FR1 x (ID/ID1)2 x (D/D1) 

Ton/yr = lb/hr X 8760 hr/yr X ton/2000 lbs

Emission Factors from STAPPA/ALAPCO "Air Quality Permits", Vol. I, Section 3 "Abrasive Blasting" (1991 edition)

N = number of nozzles = 

w = fraction of time of wet blasting = 

FR = Flow Rate (lb/hr) = 

Controlled Emissions = 

EF = emission factor (lb PM/ lb abrasive) From Table 1 = 

ID1 = Nozzle internal diameter (in) from Table 3 = 

ID = Actual nozzle internal diameter (in) = 

D1 = Density of sand (lb/ft3) =

D = Density of abrasive (lb/ft3) From Table 2 = 

FR1 = Sand flow rate (lb/hr) with internal nozzle diameter (ID1) From Table 3 = 

Flow Rate (FR) = Abrasive flow rate (lb/hr) with internal nozzle diameter (ID) 

Adjusting Flow Rates for Different Abrasives and Nozzle Diameters

Flow rate of Sand Through a Blasting Nozzle as a Function of Nozzle pressure and Internal Diameter

 Table 3 - Sand Flow Rate (FR1) Through Nozzle (lb/hr)

 Table 1 - Emission Factors for Abrasives Table 2 - Density of Abrasives (lb/ft3)

Jillian Bertram

4/1/2009

Company Name: 

Address City IN Zip: 

Metal Finishing Co., Inc.

3901 East 29th Street Indianapolis, IN 46218

Appendix A: Emission Calculations

Abrasive Blasting - Confined

097-25773-00396
Permit Number: 

Reviewer: 

Date: 

Uncontrolled nickel emissions from nonchromium electroplating tanks Emissions = EF * Capacity *8,760 hrs/yr * lbs/7000 grains * ton/2000 lbs 

= 0.3942 tons/yr

Where:

EF = 0.63 Uncontrolled emission factor for nickel, grains/A-hrMaximum Capacity = 1,000 amp

calculations. There are no emission controls employed. 

4/1/2009

Emission Calculations are based on AP-42 -Table 12.20-4 (Supplement B 7/96)

1 Activity rate assumes a maximum use of 1 tanks with a current of 1000 amp

applied for every hour of usage. Using 24 hrs/day and 365 days/year in the PTE 

Appendix A: Emission Calculations

Nickel Electroplating

Company Name: Metal Finishing Co., Inc.

Address City IN Zip: 3901 East 29th Street Indianapolis, IN 46218

097-25773-00396Jillian Bertram
Permit Number: 

Reviewer: 

Date: 

Uncontrolled total particulate matter emissions from chromium electroplating tanks Emissions = EF * Capacity *8,760 hrs/yr * lbs/7000 grains * ton/2000 lbs 

= 0.0863 tons/yr

Where:

EF = 0.07 Uncontrolled emission factor for particulate matter, grains/A-hrMaximum Capacity = 2,000 amp

Uncontrolled chromium emissions from chromium electroplating tanks Emissions = EF * Capacity *8,760 hrs/yr * lbs/7000 grains * ton/2000 lbs 

= 0.0413 tons/yr

Where:

EF = 0.03 Uncontrolled emission factor for nickel, grains/A-hrMaximum Capacity = 2,000 amp

calculations. 

4/1/2009

Emission Calculations are based on AP-42 -Table 12.20-2 (Supplement B 7/96)

1 Activity rate assumes a maximum use of 1 tanks with a current of 2000 amp

applied for every hour of usage. Using 24 hrs/day and 365 days/year in the PTE

Address City IN Zip: 3901 East 29th Street Indianapolis, IN 46218

097-25773-00396Jillian Bertram

Appendix A: Emission Calculations

Chromium Electroplating

Company Name: Metal Finishing Co., Inc.
Permit Number: 

Reviewer: 

Date: 

MMBtu/hr MMCF/yr

0.014 0.1

 PM* PM10* SO2 NOx VOC Emission Factor in lb/MMCF 1.9 7.6 0.6 100 5.5 

**see below

0.000 0.000 0.000 0.006 0.000 

Methodology

See next page for HAPs emissions calculations.

3901 East 29th Street Indianapolis, IN 46218097-25773-00396Jillian Bertram4/1/2009

Emission Factors are from AP 42, Chapter 1.4, Tables 1.4-1, 1.4-2, 1.4-3, SCC #1-02-006-02, 1-01-006-02, 1-03-006-02, and 1-03-006-0Emission (tons/yr) = Throughput (MMCF/yr) x Emission Factor (lb/MMCF)/2,000 lb/tonAll emission factors are based on normal firing.MMBtu = 1,000,000 BtuMMCF = 1,000,000 Cubic Feet of GasPotential Throughput (MMCF) = Heat Input Capacity (MMBtu/hr) x 8,760 hrs/yr x 1 MMCF/1,000 MMBtuPotential Emission in tons/yr

Pollutant

*PM emission factor is filterable PM only. PM10 emission factor is filterable and condensable PM10 combined.**Emission Factors for NOx: Uncontrolled = 100, Low NOx Burner = 50, Low NOx Burners/Flue gas recirculation = 32Heat Input Capacity Potential Throughput

Address City IN Zip: 

Natural Gas Combustion Only

 MM BTU/HR <100 (B1)

Appendix A: Emission Calculations

Company Name: Metal Finishing Co., Inc.
Permit Number: 

Reviewer: 

Date: 

 Benzene Dichlorobenzene Formaldehyde Hexane Toluene

2.1E-03 1.2E-03 7.5E-02 1.8E+00 3.4E-03

1.242E-07 7.096E-08 4.435E-06 1.064E-04 2.010E-07

 Lead Cadmium Chromium Manganese Nickel

5.0E-04 1.1E-03 1.4E-03 3.8E-04 2.1E-03

2.957E-08 6.504E-08 8.278E-08 2.247E-08 1.242E-07

 MM BTU/HR <100 (B1)

HAPs Emissions

Company Name: Metal Finishing Co., Inc.

The five highest organic and metal HAPs emission factors are provided above. Additional HAPs emission factors are available in AP-42, Chapter 1.4.

HAPs - Metals

Emission Factor in lb/MMcfPotential Emission in tons/yrMethodology is the same as previous page.

Address City IN Zip: 

HAPs - Organics

Emission Factor in lb/MMcfPotential Emission in tons/yr

3901 East 29th Street Indianapolis, IN 46218097-25773-00396Jillian Bertram4/1/2009

Appendix A: Emissions Calculations

Natural Gas Combustion Only
Permit Number: 

Reviewer: 

Date: 

MMBtu/hr MMCF/yr

13.0 113.9

 PM* PM10* SO2 NOx VOC Emission Factor in lb/MMCF 1.9 7.6 0.6 100 5.5 

**see below

0.1 0.4 0.0 5.7 0.3 

Methodology

See next page for HAPs emissions calculations.Heat Input Capacity Potential Throughput

Address City IN Zip: 

Natural Gas Combustion Only

 MM BTU/HR <100 (H1)

Appendix A: Emission Calculations

Company Name: Metal Finishing Co., Inc.

Potential Emission in tons/yr

Pollutant

*PM emission factor is filterable PM only. PM10 emission factor is filterable and condensable PM10 combined.**Emission Factors for NOx: Uncontrolled = 100, Low NOx Burner = 50, Low NOx Burners/Flue gas recirculation = 32All emission factors are based on normal firing.MMBtu = 1,000,000 BtuMMCF = 1,000,000 Cubic Feet of GasPotential Throughput (MMCF) = Heat Input Capacity (MMBtu/hr) x 8,760 hrs/yr x 1 MMCF/1,000 MMBtuEmission Factors are from AP 42, Chapter 1.4, Tables 1.4-1, 1.4-2, 1.4-3, SCC #1-02-006-02, 1-01-006-02, 1-03-006-02, and 1-03-006-0Emission (tons/yr) = Throughput (MMCF/yr) x Emission Factor (lb/MMCF)/2,000 lb/ton

3901 East 29th Street Indianapolis, IN 46218097-25773-00396Jillian Bertram4/1/2009
Permit Number: 

Reviewer: 

Date: 

 Benzene Dichlorobenzene Formaldehyde Hexane Toluene

2.1E-03 1.2E-03 7.5E-02 1.8E+00 3.4E-03

1.196E-04 6.833E-05 4.271E-03 1.025E-01 1.936E-04

 Lead Cadmium Chromium Manganese Nickel

5.0E-04 1.1E-03 1.4E-03 3.8E-04 2.1E-03

2.847E-05 6.263E-05 7.972E-05 2.164E-05 1.196E-04

Appendix A: Emissions Calculations

Natural Gas Combustion Only

Address City IN Zip: 

HAPs - Organics

Emission Factor in lb/MMcfPotential Emission in tons/yr

3901 East 29th Street Indianapolis, IN 46218097-25773-00396Jillian Bertram4/1/2009

The five highest organic and metal HAPs emission factors are provided above. Additional HAPs emission factors are available in AP-42, Chapter 1.4.

HAPs - Metals

Emission Factor in lb/MMcfPotential Emission in tons/yrMethodology is the same as previous page.

 MM BTU/HR <100 (H1)

HAPs Emissions

Company Name: Metal Finishing Co., Inc.
Permit Number: 

Reviewer: 

Date: 

Unit ID PM PM10 SO2 NOx VOC CO

Single Worst 

HAP

Total 

HAP

SB1 12.57 12.57 0.00 0.00 0.00 0.00 0.00 0.00NT1 0.00 0.00 0.00 0.00 0.00 0.00 0.39 - nickel 0.39CT1 0.09 0.09 0.00 0.00 0.00 0.00 0.04 - chromium 0.04B1 negl. negl. negl. 0.01 negl. 0.00 negl. - hexane negl.H1 0.11 0.43 0.03 5.69 0.31 4.78 0.10 - hexane 0.11Total 12.77 13.09 0.03 5.70 0.31 4.79 0.39 - nickel 0.54

Appendix A: Emission Calculations

Source-Wide Emissions Summary

Company Name: Metal Finishing Co., Inc.

4/1/2009

Uncontrolled Potential to Emit (tons/yr)

Address City IN Zip: 3901 East 29th Street Indianapolis, IN 46218

097-25773-00396Jillian Bertram
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

We Protect Hoosiers and Our Environment. 

Mitchell E. Daniels Jr. 100 North Senate Avenue 

Governor Indianapolis, Indiana 46204 

(317) 232-8603 

Thomas W. Easterly Toll Free (800) 451-6027 

Commissioner www.idem.IN.gov 

 Recycled Paper An Equal Opportunity Employer Please Recycle 

SENT VIA U.S. MAIL: CONFIRMED DELIVERY AND SIGNATURE REQUESTED 

TO: Damian McDowell

Metal Finishing Co., Inc. 

3901 E. 26th Street 

 Indianapolis, IN 46218 

 

DATE: June 10, 2009 

FROM: Matt Stuckey, Branch Chief 

 Permits Branch 

 Office of Air Quality 

SUBJECT: Final Decision 

 Minor Source Operating Permit Renewal 

 097-25773-00396 

Enclosed is the final decision and supporting materials for the air permit application referenced above. 

Please note that this packet contains the original, signed, permit documents. 

The final decision is being sent to you because our records indicate that you are the contact person for this 

application. However, if you are not the appropriate person within your company to receive this document, 

please forward it to the correct person. 

A copy of the final decision and supporting materials has also been sent via standard mail to: 

President - Metal Finishing Co., Inc. 

OAQ Permits Branch Interested Parties List 

If you have technical questions regarding the enclosed documents, please contact the Office of Air Quality, 

Permits Branch at (317) 233-0178, or toll-free at 1-800-451-6027 (ext. 3-0178), and ask to speak to the 

permit reviewer who prepared the permit. If you think you have received this document in error, please 

contact Joanne Smiddie-Brush of my staff at 1-800-451-6027 (ext 3-0185), or via e-mail at 

jbrush@idem.IN.gov. 

Final Applicant Cover letter.dot 11/30/07
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

We Protect Hoosiers and Our Environment. 

Mitchell E. Daniels Jr. 100 North Senate Avenue 

Governor Indianapolis, Indiana 46204 

(317) 232-8603 

Thomas W. Easterly Toll Free (800) 451-6027 

Commissioner www.idem.IN.gov 

 Recycled Paper An Equal Opportunity Employer Please Recycle 

June 10, 2009 

TO: Indianapolis-Marion County Public Library 

From: Matthew Stuckey, Branch Chief 

 Permits Branch 

 Office of Air Quality 

Subject: Important Information for Display Regarding a Final Determination 

 Applicant Name: Metal Finishing Co., Inc. 

 Permit Number: 097-25773-00396 

You previously received information to make available to the public during the public comment 

period of a draft permit. Enclosed is a copy of the final decision and supporting materials for the 

same project. Please place the enclosed information along with the information you previously 

received. To ensure that your patrons have ample opportunity to review the enclosed permit, we 

ask that you retain this document for at least 60 days. 

The applicant is responsible for placing a copy of the application in your library. If the permit 

application is not on file, or if you have any questions concerning this public review process, 

please contact Joanne Smiddie-Brush, OAQ Permits Administration Section at 1-800-451-6027, 

extension 3-0185. 

Enclosures 

Final Library.dot 11/30/07 

 
FACSIMILIE OF PS Form 3877 

Mail Code 61-53 

IDEM Staff GHOTOPP 6/10/2009 

Metal Finishing Co., Inc. 097-25773-00396 Final

Name and address of Sender ► Indiana Department of Environmental Management Office of Air Quality – Permits Branch 

100 N. Senate Indianapolis, IN 46204 

Type of Mail: 

CERTIFICATE OF 

MAILING ONLY 

AFFIX STAMP HERE IF USED AS CERTIFICATE OF MAILING 

Line Article 

Number 

Name, Address, Street and Post Office Address Postage Handing 

Charges 

Act. Value (If Registered) 

Insured Value 

Due Send if COD 

RF

1 Damian McDowell Metal Finishing Co., Inc. 3901 E 26th St Indianapolis IN 46218 (Source CAATS) via confirmed delivery 2 President Metal Finishing Co., Inc. 3901 E 26th St Indianapolis IN 46218 (RO CAATS)3 Marion County Health Department 3838 N, Rural St Indianapolis IN 46205-2930 (Health Department)4 Mrs. Sandra Lee Watson 7834 E 100 S Marion IN 46953 (Affected Party)5 Larry and Becky Bischoff 10979 North Smokey Row Road Mooresville IN 46158 (Affected Party)6 Indianapolis City Council and Mayors Office 200 East Washington Street, Room E Indianapolis IN 46204 (Local Official)7 Marion County Commissioners 200 E. Washington St. City County Bldg., Suite 801 Indianapolis IN 46204 (Local Official)8 Ms. Janet McCabe Improving Kids Environment 3951 N Meridian Street Suite 160 Indianapolis IN 46208-4062 (Affected Party)9 Matt Mosier Office of Sustainability 2700 South Belmont Ave. Administration Bldg. Indianapolis IN 46221 (Local Official)10 Indianapolis-Marion County Public Library 2435 North Sherman Drive Indianapolis IN 46218 (Library)11 12 13 14 15 Total number of pieces Listed by Sender 9 

Total number of Pieces Received at Post Office 

Postmaster, Per (Name of Receiving employee) 

The full declaration of value is required on all domestic anmaximum indemnity payable for the reconstruction of non

Mail document reconstructing insurance is $50,000 per pioccurrence. The maximum indemnity payable on ExpresThe maximum indemnity payable is $25,000 for registereinsurance. See Domestic Mail Manual R900, S913, an

inured and COD mail. See International Mail Manual fomail. Special handling charges apply only to Standard Ma