National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 63

[AD-FRL-5839-2]

RIN 2060-AH07

National Emission Standards for Hazardous Air Pollutants From

Secondary Lead Smelting

AGENCY: Environmental Protection Agency (EPA).

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ACTION: Direct final rule: Amendments to rule.

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SUMMARY: This action amends the national emission standards for

hazardous air pollutants (NESHAP) for new and existing secondary lead

smelters. Changes to the NESHAP are being made to address comments

received in petitions to reconsider sent to the EPA following

promulgation of the final rule. These changes affect several aspects of

the final rule including applicability of the THC limit for collocated

blast and reverberatory furnaces, minimum baghouse standard operating

procedure (SOP) requirements, and bag leak detection system

specifications and requirements. Several minor changes are also being

made to clarify the intent of the rule. The EPA is making these

amendments as a direct final rule without prior proposal because the

Agency views this as a noncontroversial amendment and anticipates no

significant adverse comments.

The EPA is also proposing these amendments in the Proposed Rules

Section of this Federal Register. If no significant adverse comments

are received in response to this direct final rule, no further action

is contemplated in relation to the proposal. If the EPA receives

significant adverse comments, the direct final rule will be withdrawn

and all public comments received will be addressed in a subsequent

final rule based on the proposed rule. The EPA will not institute a

second comment period on the proposal. Any parties interested in

commenting on the amendments should do so at this time.

DATES: Effective Date. This action will be effective August 4, 1997

unless significant adverse comments on this action are received by July

14, 1997. If significant adverse comments are received, the EPA will

withdraw this Direct Final rule and will publish timely notice of the

withdrawal inthe Federal Register, and all public comments received

will be addressed in a subsequent final rule.

Judicial Review. Under section 307(b)(1) of the Act, judicial

review of a NESHAP is available only by filing a petition for review in

the U.S. Court of Appeals for the District of Columbia Circuit within

60 days of today's publication of this final rule. Under section

307(b)(2) of the Act, the requirements that are the subject of today's

notice may not be challenged later in civil or criminal proceedings

brought by the EPA to enforce these requirements.

ADDRESSES: Docket. Docket No. A-92-43, containing information

considered by the EPA in development of the promulgated standards, is

available for public inspection and copying between 8:00 a.m. and 5:30

p.m., Monday through Friday except for Federal holidays, at the

following address: U.S. Environmental Protection Agency, Air and

Radiation Docket and Information Center (MC-6102), 401 M Street, SW.,

Washington, DC 20460; telephone (202) 260-7548. The docket is located

at the above address in Room M-1500, Waterside Mall (ground floor). A

reasonable fee may be charged for copying.

Comments. Written comments should be submitted to: Docket A-92-43,

U.S. EPA, Air & Radiation Docket & Information Center, 401 M. Street,

S.W., Room 1500, Washington, D.C. 20460.

FOR FURTHER INFORMATION CONTACT: Mr. Kevin Cavender, Metals Group,

Emission Standards Division (MD-13), U.S. Environmental Protection

Agency, Research Triangle Park, North Carolina 27711; telephone (919)

541-2364.

SUPPLEMENTARY INFORMATION:

The information presented in this preamble is organized as follows:

I. Background

II. Summary

A. Summary of Promulgated Standards

B. Summary of Changes Made Since Promulgation

C. Summary of Environmental, Energy, Health, Cost, and Economic

Impacts

III. Public Participation

IV. Significant Public Comments and Responses

A. Definition of Collocated Blast Furnace and Reverberatory Furnaces

B. Test Methods for Determining Hood Face and Doorway Air Velocities

C. Minimum Baghouse SOP Requirements

D. Bag Leak Detection System Specifications and Requirements

V. Administrative Requirements

A. Docket

B. Executive Order 12866

C. Unfunded Mandates Act

D. Paperwork Reduction Act

E. Regulatory Flexibility Act

F. Submission to Congress and the General Accounting Office

I. Background

The NESHAP for secondary lead smelting (40 CFR part 63, subpart X)

was proposed in the Federal Register on June 9, 1994 (59 FR 29750). The

EPA received 31 letters commenting on the proposed rule and proposed

area source listing. After considering fully the comments received, the

EPA promulgated this NESHAP in the Federal Register on June 23, 1995

(60 FR 32587).

The final rule establishes emission limits for lead, as a surrogate

for all metallic Hazardous Air Pollutants (HAP), from smelting

furnaces, refining kettles, agglomerating furnaces, dryers, and

fugitive dust sources at secondary lead smelters. The final rule also

establishes emission limits for total hydrocarbons (THC), as a

surrogate for HAP organics, from smelting furnaces. Work practice

standards (i.e., minimum hood face velocities, and building enclosures)

were specified for the capture and control of process fugitive sources

including furnace charging equipment and tapping locations, refining

kettles, driers, and agglomerating furnace vents and taps. The final

rule also requires smelters to develop site specific Standard Operating

Procedures (SOP) manuals for fugitive dust control and baghouse

operation and maintenance. Minimum SOP requirements were specified in

the rule.

Following publication of the final rule, the EPA received three

petitions for reconsideration pursuant to section 307(d)(7)(B) of the

act from secondary lead smelter owners and operators, and the

Association of Battery Recyclers, an industry trade association that

represents the majority of the secondary lead smelters in the United

States.

The petitioners had subsantive objections to several technical

requirements in the final rule that were not included in the proposal.

The EPA has determined that several of the objections contained in the

petitions, though not dealing with critical parts of the rule, are

properly founded and that the rule should be revised. The EPA extended

the compliance and SOP submittal dates by six months, in order to allow

affected sources time to address the changes being made in this action.

The extension was published in the Federal Register on December 12,

1996 (60 FR 65334). The EPA is making further amendments in this

document.

II. Summary

A. Summary of Promulgated Standards

The promulgated rule, as amended, establishes standards to limit

HAP emissions from smelting furnaces, refining kettles, agglomerating

furnaces, dryers, and fugitive dust sources at both major source and

area source secondary lead smelters. The promulgated rule does not

apply to primary lead smelters, lead refiners, or lead remelters.

1. Process Emission Sources

Owners and operators of all smelting furnace types must limit lead

compound emissions, which is a surrogate for all metal HAP, to no more

than 2.0 milligrams per dry standard cubic meter (mg/dscm; 0.00087

grains per dry standard cubic foot (gr/dscf)). Owners

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and operators must limit THC emissions, which is a surrogate for all

organic HAP's, to varying levels depending on the smelting furnace

type. No THC limits apply to reverberatory, rotary, and electric

furnaces not collocated with blast furnaces.

Owners and operators of collocated blast furnaces and reverberatory

furnaces must comply with a THC limit of 20 parts per million by volume

(ppmv) as propane at 4 percent carbon dioxide (CO2) when

both furnaces are operating. Less stringent limits apply when the

reverberatory furnace is not operating. When the reverberatory furnace

is not operating, new blast furnaces collocated with reverberatory

furnaces must comply with a THC limit of 70 ppmv, and existing blast

furnaces must comply with a THC limit of 360 ppmv. For the purpose of

this rule, a collocated blast furnace and reverberatory furnace is

defined as operation at the same site of a reverberatory furnace and a

blast furnace with the volumetric flow rate discharged from the

reverberatory furnaces being at least equal to that discharged from the

blast furnaces.

The THC standard for a collocated blast furnace and reverberatory

furnace is based on commingling the high-volume, high-temperature

(approximately 1000 deg.C) reverberatory exhaust with the low-volume,

low-temperature (approximately 100 deg.C) blast furnace exhaust to

incinerate the organic HAP in the blast furnace exhaust. Organics are

further reduced in a typical collocated blast furnace and reverberatory

configuration since the reverberatory furnace processes the majority of

the broken battery materials while the blast furnace processes

reverberatory slag and only small amounts of broken batteries.

Owners and operators of new blast furnaces not collocated with a

reverberatory furnace (as defined above) must comply with a THC limit

of 70 ppmv. Existing blast furnaces not collocated with a reverberatory

furnace must comply with a THC limit of 360 ppmv. The THC emissions

from each blast furnace charging chute at all smelters with blast

furnaces shall not exceed 0.20 kilograms per hour (kg/hr; 0.44 pounds

per hour (lb/hr)).

Table 2 in the attached regulatory text summarizes the emission

limits for smelting furnace process sources.

2. Process Fugitive Emission Sources

Owners and operators must comply with either of two process

fugitive emission control options. Each process fugitive emission

source must be controlled either by an enclosure-type hood that is

ventilated to a control device or must be fully enclosed within a total

enclosure that is ventilated to a control device. Lead compound

emissions, as a surrogate for all metal HAP's, from each hood or

building control device are limited to 2.0 mg/dscm (0.00087 gr/dscf).

Refining kettle enclosure hoods must have a minimum air velocity

into all hood openings (i.e., face velocity) of 75 meters per minute

(m/min; 250 feet per minute (fpm)), and the enclosure hoods over drying

kiln transition pieces must have a minimum face velocity of 110 m/min

(350 fpm). All other process fugitive emission sources (charging

points, lead and slag taps, and agglomerating furnaces) with an

enclosure hood must have a minimum face velocity of 90 m/min (300 fpm).

If a ventilated building is used to control process fugitive sources,

then it must be ventilated at such a rate as to maintain a lower than

ambient pressure within the building, ensuring that a in-draft will

exist at all doors and other openings.

Table 3 in the attached regulatory text summarizes the requirements

for process fugitive emission sources.

3. Fugitive Dust Sources

Fugitive dust emissions must be controlled by the measures

specified in a standard operating procedures (SOP) manual. The SOP must

be developed by the owner or operator of each smelter and submitted to

the Administrator for approval. The SOP must describe the measures that

will be used to control fugitive dust emissions from plant roadways;

the battery breaking area; the furnace, refining, and casting areas;

and the materials storage and handling areas. Acceptable control

measures include either a total enclosure of the fugitive dust source

and ventilation of the enclosure to a control device, or a combination

of partial enclosures, wet suppression, and pavement cleaning. Lead

compound emissions, as a surrogate for all metal HAP's, from enclosure

control devices must be limited to 2.0 mg/dscm (0.00087 gr/dscf).

4. Compliance Dates

Compliance for existing sources must be achieved no later than

December 23, 1997, or upon startup for new or reconstructed sources.

5. Compliance Test Methods

Compliance with the emission limits for lead compounds shall be

determined according to EPA Reference Method 12 (40 CFR part 60,

appendix A). EPA Reference Method 9 is not required for determining

compliance with the emission limits for lead compounds. Compliance with

the THC emission limits shall be determined according to EPA Reference

Method 25A (40 CFR part 60, appendix A). Concentrations of THC shall be

reported in ppmv, as propane, corrected to 4 percent CO2 to

correct for dilution. Sampling point locations shall be determined

according to EPA Reference Method 1, and stack gas conditions shall be

determined, as appropriate, according to EPA Reference Methods 2, 3,

3B, and 4 (40 CFR part 60, appendix A).

6. Monitoring Requirements

The rule requires an initial lead compound emission test for all

subject control devices to demonstrate compliance with the lead

compound emission standards. In addition, the rule requires annual

compliance testing for devices controlling process and process fugitive

emission sources. All owners and operators must also prepare SOP

manuals for the systematic inspection and maintenance of all baghouses,

and install and operate bag leak detection systems. Where required, a

single bagleak detector may be used to monitor a common stack serving

multiple baghouses. Each manual shall also include provisions for the

diagnosis of problems and a corrective action plan. Plans for

corrective action must prescribe procedures to be followed whenever an

alarm is triggered.

Compliance with the THC emission standards (except that for blast

furnace charging) will require monitoring either afterburner or

incinerator temperature or THC concentration. The THC emission limit

includes a carbon dioxide correction factor which accounts for dilution

(e.g., combining non-process streams, and tempering air). As such, the

THC monitor may be placed anywhere down stream of any organic HAP

control devices (e.g., after the baghouse). Only an initial compliance

test is required for blast furnace charging.

7. Notification Requirements

The owner or operator will be required to comply with the

notification requirements in the General Provisions to part 63 (40 CFR

part 60, subpart A). In addition, owners and operators will be required

to submit the fugitive dust control SOP and the baghouse SOP to the

Administrator for review and approval.

8. Recordkeeping and Reporting Requirements

Owners and operators will be required to comply with the

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recordkeeping and reporting requirements in the General Provisions to

part 63 (40 CFR part 60, subpart A). In addition, the owners and

operators will be required to maintain records demonstrating that they

have implemented the requirements of the fugitive dust control SOP and

the baghouse SOP, including records of all bag leak detection system

alarms and corrective actions.

B. Summary of Changes Made Since Promulgation

The EPA has made several changes to the promulgated rule based on

comments contained in the petitions for reconsideration. A summary of

the changes is presented below. Additional discussion of the changes

and the rationale for these changes is presented in section II-C of

this preamble.

1. Definitions

Several definitions were revised or added to resolve issues and

clarify the intent of the rule. The definition of a bag leak detection

system was revised to specifically not exclude devices that operate on

the principle of light transmittance. Bag leak detection systems still

must meet the specifications outlined in Sec. 63.548(e).

A definition of collocated blast furnace and reverberatory furnace

was added. The new definition is based, in part, on the relative

exhaust rate for the blast furnace compared to the reverberatory

furnace. This definition was added in response to comments from two

smelters where the blast furnace exhaust was substantially higher than

the reverberatory furnace making commingling infeasible.

The definitions of secondary lead smelter and smelting were revised

and a definition of lead alloy was added to clarify that solder

reclamation operations are not subject to the rule.

The definitions of partial and total enclosure were revised to

clarify the intent of the rule. A definition of a high efficiency

particulate air (HEPA) filter was added for completeness.

2. Standards for Process Fugitive Sources

Section 63.544 was re-organized to clarify the intent of the rule

due to comments received. Specifically, the section was revised to make

it clear that a facility wishing to comply with the standard through

the use of a total enclosure may still use local hooding within the

total enclosure, and that a facility may choose to control some

fugitive emission sources with total enclosures and others through

enclosure hooding. These changes do not affect the requirements of the

rule.

The minimum doorway air velocity requirement for total enclosures

has been deleted. As revised, owners and operators choosing to control

process fugitive emission sources through total enclosures are required

to ventilate the building at a rate that would ensure in-draft at all

doorways. This requirement would replace the requirement for

maintaining an in-draft velocity of 250 meters per minute at all

doorways.

3. Test Methods and Schedule

The test method for demonstrating compliance with the hood face

velocity has been revised to address comments received in the

petitions. The current procedure could be read to require facilities to

test the hood face velocity with all access doors in the open position.

One petitioner argued that this requirement would, in many instances,

result in artificial operating conditions that would make compliance

impossible for certain operators. The rule is being revised to clarify

that facilities may demonstrate compliance with the access doors

positioned consistent with normal operation.

The test method for demonstrating compliance with the doorway air

velocity requirements has been revised to address comments received in

the petitions. As revised, owners and operators are given two options

for demonstrating that the enclosure is ventilated at a sufficient rate

to ensure in-draft at all openings. Under the first option, a vane

anemometer is placed in the center of each doorway to demonstrate that

air is being drawn into the building. Alternatively, an owner or

operator can elect to install a pressure gauge on the leeward wall of

the enclosure and demonstrate that the building is under a negative

pressure as compared to ambient pressure.

4. Monitoring Requirements

The minimum maintenance requirements specified in the rule have

been revised to address comments received in the petitions. The

frequency of several of the required inspections were lowered to reduce

the burden placed on operators. In addition, the requirements were

revised to allow for alternative means of inspection where appropriate

(e.g., fan vibration analysis in lieu of visual inspection for wear).

The specifications and requirements for bag leak detection systems

have been revised. The minimum detection capability of the bag leak

system was increased to 10 milligram per actual cubic meter from 1

milligram per actual cubic meter.

The requirement that a facility perform a compliance test in order

to adjust the settings on the bag leak detection system has been

dropped. Facilities will be allowed to adjust the bag leak detector as

provided in written EPA guidance or manufacturers written guidance in

the event EPA guidance is not available. In addition, annual compliance

tests have been instated.

The bag leak detection requirement for positive pressure baghouses

has been changed. Positive pressure baghouses equipped with stacks now

must meet the same bag leak detection system requirements as negative

pressure baghouses. None of the affected secondary lead smelters

currently operate any positive pressure baghouses without stacks, nor

are any expected to install such systems. Therefore positive pressure

baghouses without stacks are not addressed in the rule.

Facilities that have equipped their baghouses with HEPA filters as

a secondary filter to control emissions escaping the baghouse primary

filter are exempted from the bag leak detection requirements. However,

the facility must monitor the pressure drop across the HEPA filter, and

if the pressure drop falls outside of the limit(s) specified by the

filter manufacturer, the owner must take appropriate corrective

measures. Baghouses that are used to control emissions from total

enclosures used to comply with the fugitive dust standards

(Sec. 63.545) are also exempted from the bag leak detection

requirements.

5. Notification Requirements

The submittal date for the fugitive dust control SOP and the SOP

for baghouses has been extended by 30 days from June 23, 1997, to July

23, 1997. This extension is being made to allow owners and operators

adequate time to incorporate the changes being made in this revision

into their SOP manuals.

C. Summary of Environmental, Energy, Health, Cost, and Economic Impacts

The final standards, as amended, will reduce total nationwide

emissions of both metal HAP's and organic HAP's from secondary lead

smelters by 1,230 megagrams per year (Mg/yr) (1,356 tons/yr). These

reductions include 53 Mg/yr (58 tons/yr) of metal HAP's and 1,176 Mg/yr

(1,296 tons/yr) of organic HAP's. The organic HAP emission reduction

estimate has been reduced since promulgation by 54 Mg/yr (60 tons/yr).

This change is due to two facilities no longer meeting the definition

of a facility with a collocated blast furnace and reverberatory

furnace. The amendments made in today's action do

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not significantly change the cost and economic impacts of the final

rule.

III. Public Participation

Following promulgation, the EPA received three petitions for

reconsideration from representatives of secondary lead smelters (Docket

ID Nos. IV-D-48, IV-D-49, and IV-D-50). The EPA met with the

petitioners to discuss the comments contained in the petitions.

Following the meeting, the petitioners provided the EPA with additional

information to support the comments made in the petitions (Docket ID

Nos. IV-D-51, and IV-D-52).

IV. Significant Public Comments and Responses

The EPA received three petitions to reconsider from owners and

operators of secondary lead smelters and industry trade associations.

Two of the three petitions contained multiple comments. A document that

summarizes the comments and arguments advanced in the petitions, and

the EPA responses, was prepared. The document, entitled ``Summary of

Petition Comments on Promulgated Rule and EPA Responses, Secondary Lead

Smelting NESHAP'', may be found in the docket (Docket ID No. V-B-2). It

serves as the basis for the revisions that have been made to the

standard since promulgation. This section contains a detailed

discussion of the significant comments contained in the petitions and

the EPA's responses. Significant comments and new information were

received on four topics: the definition of collocated blast and

reverberatory furnaces, test methods for determining hood face and

doorway air velocities, minimum baghouse SOP requirements, and bag leak

detection system specifications and requirements.

A. Definition of Collocated Blast Furnace and Reverberatory Furnaces

Comment: Two petitioners (Docket ID Nos. IV-D-49, and IV-D-50)

requested reconsideration of the THC limit for collocated blast

furnaces and reverberatory furnaces. One petitioner (Docket ID No. IV-

D-49) indicated that their blast furnace was originally designed as a

primary lead blast furnace, and as such, had an exhaust rate 10 times

higher than typical secondary lead blast furnaces. The high blast

furnace exhaust rate compared to their low reverberatory exhaust rate

made commingling technically and economically infeasible. The petition

supplied information to support the claim.

The second petitioner (Docket ID No. IV-D-50) pointed out that the

term ``collocated'' was not defined, and argued that smelter

configurations very dramatically. They identified one facility that

would have difficulty meeting the requirements since they had two blast

furnaces and only one reverberatory furnace. Upon request, the

petitioner supplied the exhaust flowrates for the two blast furnaces

(25,300 scfm, total) and the reverberatory furnace (8,800 scfm) (Docket

ID No. IV-D-52).

Response: The EPA reviewed the requests and the additional

information provided by the petitioners. The EPA evaluated the

differences in furnace exhaust rates for facilities with blast and

reverberatory furnaces (Docket ID No. II-B-36). Information on the

exhaust rates was obtained for all eight of the existing facilities

with both blast and reverberatory furnaces. On reviewing the

information, two groupings of facilities were evident. Six of the

facilities had blast furnace exhaust rates which were less than roughly

half that of the reverberatory exhaust rate. In contrast, two

facilities had blast furnace exhaust rates which are more than 150

percent of the reverberatory exhaust rate. These two facilities, Doe

Run, Missouri; and Schuylkill, Louisiana, are the facilities

represented in the petitions.

Commingling of the exhaust gases is the basis for the collocated

blast furnace and reverberatory furnace THC emission limit. The

principle of commingling the exhaust gases is based on a large hot

(2000+ degree Fahrenheit) reverberatory furnace exhaust acting as the

principle heat source to incinerate any organics in the smaller cooler

(roughly 200 deg.F) blast furnace exhaust. Clearly this condition is

not met at the two facilities represented in the petitions. As such, it

is unlikely that these two facilities would be able to achieve the THC

standard for collocated blast furnaces and reverberatory furnaces by

commingling, nor is it likely that they could achieve the standard

through the use of afterburners.

To correct this situation, the EPA is adding the following

definition of collocated blast furnace and reverberatory furnace to the

final rule:

``Collocated blast furnace and reverberatory furnace means

operation at the same location of a blast furnace and a

reverberatory furnace with the volumetric flow rate discharged from

the blast furnace equal to or less than that discharged from the

reverberatory furnace.''

Under this definition, the two facilities represented in the

petition would not be classified as having a collocated blast furnace

and reverberatory furnace. As such, their blast furnaces would be

subject to the blast furnace THC limit of 360 ppmv as propane rather

than the 20 ppmv limit for collocated furnaces.

B. Test Methods for Determining Hood Face and Doorway Air Velocities

Comment: One petitioner (Docket ID No. IV-D-50) objected to the

requirements in the rule for demonstrating compliance with the hood

face air velocity standard. Specifically, the petitioner objected to

the requirement that all access doors to a hood be open when measuring

hood face velocity. The petitioner noted that at least one smelter has

a charging hood with two doors to allow charging from either direction,

but only one is open at any one time. In addition, the petitioner

pointed out that some of the doors are used solely for the purpose of

allowing periodic access for maintenance and other necessary

activities. The petitioner argues that the requirement may render

compliance with the face velocity standard impossible for certain

operators, and does so unnecessarily because it does not reflect normal

operations.

Response: The intent of the requirements is to ensure that adequate

capture velocities are maintained during normal operating conditions.

The EPA did not intend to require compliance demonstrations during

artificial ``worst case'' operating conditions. As such, the EPA is

revising Sec. 63.547(d) to clarify the rule's intent.

Each access door and opening open during normal operation shall be

tested. When a given access door is being tested, all other access

doors shall be in the position they would be in during normal

operation.

Comment: Two petitioners commented on the requirements for

demonstrating compliance with the doorway air velocity standard for

total enclosures. One petitioner (Docket ID No. IV-D-50) noted that the

requirement could be read to mean that all doors that might be open

during normal operation be open simultaneously during testing,

regardless of whether such conditions occur during normal operations. A

second petitioner (Docket ID No. IV-D-48) also commented that the rule

was ambiguous on where and how the compliance with the air velocity

requirement is to be measured. The petitioner also noted concern about

the acheivability of the 250 feet per minute air velocity requirement.

Both petitioners noted that requirements on doorway air velocities were

not contained in the proposed rule, and that the industry did not have

an

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opportunity to comment on the requirements.

Response: The EPA's intent was to require adequate ventilation to

ensure air flow into the building at all doorways during normal

operation conditions. Upon further consideration, the EPA believes that

the 250 foot per minute doorway velocity requirement is excessive for

this purpose, and would result in undue burden to the industry. As

such, the EPA is revising the requirement. As revised, a facility must

ventilate the building to a rate that ensures air flow is into the

building at all doorways that would be open during normal operation.

Two alternative methods are provided for demonstrating compliance.

Owners and operators can choose to demonstrate in-draft at each door

using a vane anemometer, or may install a pressure gauge on the leeward

wall to demonstrate that the building is maintained at a lower than

ambient pressure.

C. Minimum Baghouse SOP Requirements

Comment: One petitioner (Docket ID No. IV-D-50) commented on the

minimum requirements for the baghouse inspection and maintenance SOP.

While agreeing that an appropriate inspection and maintenance program

is critical to monitoring performance, they argued that the minimum

requirements set forth by the rule were unrealistic and unnecessary in

some cases. The petitioner indicated that the EPA underestimated the

labor required to satisfy the minimum requirements. The petitioner also

argued that frequent baghouse inspections would result in increased

fugitive emissions (due to wear on door seals) and worker exposure.

Response: The EPA has reviewed the minimum requirements for the

baghouse inspection and maintenance SOP, and the labor estimates

provided by the petitioners. The labor estimates to complete the

minimum inspection requirements are significantly higher than

previously estimated. The EPA has revised Sec. 63.548(c) to reflect a

more realistic schedule. In addition, several of the requirements have

been reworded to allow for alternatives to visual inspections where

appropriate. The revised requirements, which still include continuous

bag leak detection, will reduce the labor burden associated with

baghouse inspections while still providing adequate protection of the

environment.

D. Bag Leak Detection System Specifications and Requirements

Comment: Two petitioners (Docket ID No. IV-D-48, and IV-D-50)

commented on the rules requirement that a compliance test be performed

after any adjustments to the required bag leak detectors are made. One

petitioner (Docket ID No. IV-D-48) stated that this requirement does

not reflect the realities of normal operations and, as such, may cause

unacceptable difficulties in practice. They further stated that all

measurement instruments require calibration on a routine basis, with

the calibration interval dependent upon the instrument's sensitivity

and detection requirements. Without such sensitivity adjustments, the

presence of drift may cause the system to operate improperly. The

second petitioner (Docket ID No. IV-D-50) echoed the need for periodic

adjustments to account for drift. They also commented that the

requirement tying the adjustment to compliance testing ignores the

actual operation of bag leak detectors. Because there is no set

relationship between the particulate emissions, as measured by the

unit, and lead emission levels, the bag leak detector is not a monitor

of lead emissions. Rather, its purpose is to reveal bag leaks.

Response: Upon further consideration, the EPA agrees that periodic

adjustment of the bag leak detector system may be necessary, and that

adjustment of the bag leak detector should not be tied to compliance

demonstrations. The intended use of the bag leak detector was as a

process monitor, able to identify upset conditions in the baghouse

operation. The EPA is concerned however, that unrestricted adjustment

of the bag leak detector could result in improper use, possibly

resulting in the alarm and sensitivity settings being set such that

leaks or malfunctions could occur undetected. As such, the EPA has

revised the bag leak system adjustment requirements to: (1) delink bag

leak detector adjustment and compliance testing, (2) allow for routine

minor adjustments to the detector system, (3) require owners and

operators to identify in their baghouse SOP all routine adjustments

expected, and (4) require that owners and operators perform a complete

baghouse inspection to ensure proper operation of the baghouse prior to

any significant adjustments to the sensitivity or range.

In addition, a requirement for annual compliance testing has been

instated. Instating annual compliance testing should not result in a

significant increase in compliance testing costs over those imposed in

the promulgated rule. The EPA assumed that facilities would wish to

adjust bag leak detection settings at least once a year, which as

written, would have triggered compliance testing.

Comment: One petitioner (Docket ID No. IV-D-48) argued that the bag

leak detection system detection capability requirement is too

restrictive. Section 63.548(e)(1) requires that the bag detection

system be able to detect emissions of particulate matter at 1.0

milligram per actual cubic meter or less. The petitioner argues that,

since the bag leak detector system monitors PM rather than lead, the

specification does not correlate to the emission limit in the rule.

They also argue that the specification is unnecessary to ensure that a

bag leak detection system is capable of detecting tears and/or leaks in

baghouse bags. Furthermore, the petitioner noted concern that the

specification is based on information provided by only one manufacturer

of one type of bag leak detector.

Response: The EPA did not intend to tie the bag leak detector

detection capability to the lead limit. The intent of the requirement

was to set a minimum detection capability to ensure a minimum quality

and capability of the detection systems to be used. Bag leak detection

systems were being used at several secondary lead smelters. The

detection capability was set based on what was believed to be the

detection capability of the systems already being used at these

smelters. Upon further review it was determined that the 1.0 milligram

per actual cubic meter detection capability was actually the capability

of the most sensitive bag leak detectors available, and was not

representative of the bag leak detectors already in use at secondary

lead smelters. The EPA is increasing the detection capability to 10

milligram per actual cubic meter which is more representative of the

existing bag leak detectors, and still meets the EPA's purpose of

ensuring systems capable of detecting baghouse upset conditions.

Comment: One petitioner (Docket ID No. IV-D-48) commented that some

baghouses are equipped with HEPA filters. The petitioner believes that

it is unnecessary and impractical to require bag leak detection systems

for these units, and that requiring visual inspections of the HEPA

units and review of operating readouts in accordance with an approved

SOP is fully protective of human health and the environment.

Response: The EPA acknowledges that some baghouses are equipped

with HEPA filters which act as a secondary

[[Page 32215]]

filter, and that these secondary filters may provide improved

protection from bag leaks. The EPA also agrees that the use of a bag

leak detector on such a system would likely provide little if any

additional protection over proper inspection and monitoring of

operating parameters (such as pressure drop). As such, the EPA is

adding Sec. 63.548(g) to exempt baghouses equipped with secondary HEPA

filters from the bag leak detection requirement and add alternative

monitoring requirements for these systems.

Comment: One commenter (Docket ID No. IV-D-50) argued that the

requirement for bag leak detectors on all baghouses for process,

process fugitive, and fugitive emissions is excessive. They contend

that there are applications, particularly baghouses used to control

particulate from building ventilation, in which units will not function

due to the nature of the particulate.

Response: Upon further review, the EPA agrees that bag leak

detectors will provide little to no useful information on baghouses

used to control fugitive dust emissions from building ventilation. This

is due to the low inlet loadings associated with these systems. As

such, the EPA is adding Sec. 63.548(h) to exempt baghouses used to

control fugitive dust emissions from the bag leak detection

requirement. Owners and operators are still required to develop and

adhere to a SOP for the operation and maintenance of these baghouses

that meets the minimum requirements specified in Sec. 63.548(c).

V. Administrative Requirements

A. Docket

The docket is an organized and complete file of all the information

considered by the EPA in the development of this rulemaking. The docket

is a dynamic file, since material is added throughout the rulemaking

development. The docket system is intended to allow members of the

public and affected industries to readily identify and locate documents

so that they can effectively participate in the rulemaking process.

Along with the BID's and preambles to the proposed and promulgated

standards, the contents of the docket will serve as the official record

in case of judicial review (section 307(d)(7)(A) of the Act).

B. Executive Order 12866

The Agency must determine whether a regulatory action is

``significant'' and therefore subject to OMB review and the

requirements of the E.O. 12866, (58 FR 51735, October 4, 1993). The

Executive Order defines ``significant regulatory action'' as one that

is likely to result in a rule that may:

(1) Have an annual effect on the economy of $100 million or more or

adversely affect in a material way the economy, a sector of the

economy, productivity, competition, jobs, the environment, public

health or safety, or State, local, or tribal governments or

communities;

(2) create a serious inconsistency or otherwise interfere with an

action taken or planned by another agency;

(3) materially alter the budgetary impact of entitlements, grants,

user fees, or loan programs, or the rights and obligations of

recipients thereof; or

(4) raise novel legal or policy issues arising out of legal

mandates, the President's priorities, or the principles set forth in

the Executive Order.

It has been determined that this amendment to the final rule is not

a ``significant regulatory action'' under the terms of the Executive

Order and is therefore not subject to OMB review.

C. Unfunded Mandates Act

Section 202 of the Unfunded Mandates Reform Act of 1995 (``Unfunded

Mandates Act'') requires that the Agency prepare a budgetary impact

statement before promulgating a rule that includes a Federal mandate

that may result in expenditure by State, local, and tribal governments,

in aggregate, or by the private sector, of $100 million or more in any

1 year. Section 203 requires the Agency to establish a plan for

obtaining input from and informing, educating, and advising any small

governments that may be significantly or uniquely affected by the rule.

Under section 205 of the Unfunded Mandates Act, the Agency must

identify and consider a reasonable number of regulatory alternatives

before promulgating a rule for which a budgetary impact statement must

be prepared. The Agency must select from those alternatives the least

costly, most cost-effective, or least burdensome alternative that

achieves the objectives of the rule, unless the Agency explains why

this alternative is not selected or the selection of this alternative

is inconsistent with law.

This amendment reduces the costs of complying with the final rule,

it will not increase expenditures by State, local, and tribal

governments or the private sector. Therefore, the Agency has not

prepared a budgetary impact statement or specifically addressed the

selection of the least costly, most cost-effective, or least burdensome

alternative. Because small governments will not be significantly or

uniquely affected by this rule, the Agency is not required to develop a

plan with regard to small governments.

D. Paperwork Reduction Act

Under the Paperwork Reduction Act, 44 U.S.C 3501 et seq., the EPA

must consider the paperwork burden imposed by any information

collection request in a proposed or final rule. This amendment to the

rule will not impose any new information collection requirements.

E. Regulatory Flexibility Act

The Regulatory Flexibility Act (or RFA, Public Law 96-354,

September 19, 1980) requires Federal agencies to give special

consideration to the impact of regulation on small businesses. The RFA

specifies that a regulatory flexibility analysis must be prepared if a

screening analysis indicates a regulation will have a significant

economic impact on a substantial number of small entities. EPA has

determined that it is not necessary to prepare a regulatory flexibility

analysis in connection with this final rule. EPA has also determined

that this rule will not have a significant economic impact on a

substantial number of small entities. This amendment will not result in

increased economic impacts to small entities, and will result in

reduced impacts in all cases.

F. Submission to Congress and the General Accounting Office

Under 5 U.S.C. 801(a)(1)(A) as added by the Small Business

Regulatory Enforcement Fairness Act of 1996, the EPA submitted a report

containing this rule and other required information to the U.S. Senate,

the U.S. House of Representatives and the Comptroller General of the

General Accounting Office prior to publication of the rule in today's

Federal Register. This amendment is not a ``major rule'' as defined by

5 U.S.C. 804(2).

List of Subjects in 40 CFR Part 63

Environmental protection, Air pollution control, Hazardous

substances, Reporting and recordkeeping requirements, Secondary lead

smelters.

Dated: June 4, 1997.

Carol M. Browner,

Administrator.

For the reasons set out in the preamble, title 40, chapter I, of

the Code of Federal Regulations is amended as follows:

[[Page 32216]]

PART 63--[AMENDED]

1. The authority citation for part 63 continues to read as follows:

Authority: 42 U.S.C. 7401 et seq.

2. Part 63 subpart X is revised to read as follows:

Subpart X--National Emission Standards for Hazardous Air Pollutants

from Secondary Lead Smelting

Secs.

63.541 Applicability.

63.542 Definitions.

63.543 Standards for process sources.

63.544 Standards for process fugitive sources.

63.545 Standards for fugitive dust sources.

63.546 Compliance dates.

63.547 Test methods.

63.548 Monitoring requirements.

63.549 Notification requirements.

63.550 Recordkeeping and reporting requirements.

Subpart X--National Emission Standards for Hazardous Air Pollutants

from Secondary Lead Smelting

Sec. 63.541 Applicability.

(a) The provisions of this subpart apply to the following affected

sources at all secondary lead smelters: blast, reverberatory, rotary,

and electric smelting furnaces; refining kettles; agglomerating

furnaces; dryers; process fugitive sources; and fugitive dust sources.

The provisions of this subpart do not apply to primary lead smelters,

lead refiners, or lead remelters.

(b) Table 1 of this subpart specifies the provisions of subpart A

that apply and those that do not apply to owners and operators of

secondary lead smelters subject to this subpart.

Table 1.--General Provisions Applicability to Subpart X

------------------------------------------------------------------------

Applies to

Reference subpart X Comment

------------------------------------------------------------------------

63.1.......................... Yes..............

63.2.......................... Yes..............

63.3.......................... Yes..............

63.4.......................... Yes..............

63.5.......................... Yes..............

63.6 (a), (b), (c), (e), (f), Yes..............

(g), (i) and (j).

63.6 (d) and (h).............. No............... No opacity limits in

rule.

63.7.......................... Yes..............

63.8.......................... Yes..............

63.9 (a), (b), (c), (d), (e), Yes..............

(g), (h)(1-3), (h)(5-6), and

(j).

63.9 (f) and (h)(4)........... No............... No opacity or visible

emission limits in

subpart X.

63.10......................... Yes..............

63.11......................... No............... Flares will not be

used to comply with

the emission limits.

63.12 to 63.15................ Yes..............

------------------------------------------------------------------------

Sec. 63.542 Definitions.

Terms used in this subpart are defined in the Act, in subpart A of

this part, or in this section as follows:

Agglomerating furnace means a furnace used to melt into a solid

mass flue dust that is collected from a baghouse.

Bag leak detection system means an instrument that is capable of

monitoring particulate matter (dust) loadings in the exhaust of a

baghouse in order to detect bag failures. A bag leak detection system

includes, but is not limited to, an instrument that operates on

triboelectric, light scattering, transmittance or other effect to

monitor relative particulate matter loadings.

Battery breaking area means the plant location at which lead-acid

batteries are broken, crushed, or disassembled and separated into

components.

Blast furnace means a smelting furnace consisting of a vertical

cylinder atop a crucible, into which lead-bearing charge materials are

introduced at the top of the furnace and combustion air is introduced

through tuyeres at the bottom of the cylinder, and that uses coke as a

fuel source and that is operated at such a temperature in the

combustion zone (greater than 980 deg.C) that lead compounds are

chemically reduced to elemental lead metal.

Blast furnace charging location means the physical opening through

which raw materials are introduced into a blast furnace.

Collocated blast furnace and reverberatory furnace means operation

at the same location of a blast furnace and a reverberatory furnace

with the volumetric flow rate discharged from the blast furnace being

at equal to or less than that discharged from the reverberatory

furnace.

Dryer means a chamber that is heated and that is used to remove

moisture from lead-bearing materials before they are charged to a

smelting furnace.

Dryer transition piece means the junction between a dryer and the

charge hopper or conveyor, or the junction between the dryer and the

smelting furnace feed chute or hopper located at the ends of the dryer.

Electric furnace means a smelting furnace consisting of a vessel

into which reverberatory furnace slag is introduced and that uses

electrical energy to heat the reverberatory furnace slag to such a

temperature (greater than 980 deg.C) that lead compounds are reduced

to elemental lead metal.

Enclosure hood means a hood that covers a process fugitive emission

source on the top and on all sides, with openings only for access to

introduce or remove materials to or from the source and through which

an induced flow of air is ventilated.

Fugitive dust source means a stationary source of hazardous air

pollutant emissions at a secondary lead smelter that is not associated

with a specific process or process fugitive vent or stack. Fugitive

dust sources include, but are not limited to, roadways, storage piles,

materials handling transfer points, materials transport areas, storage

areas, process areas, and buildings.

Furnace and refining/casting area means any area of a secondary

lead smelter in which:

(1) Smelting furnaces are located; or

(2) Refining operations occur; or

(3) Casting operations occur.

High efficiency particulate air (HEPA) filter means a filter that

has been certified by the manufacturer to remove 99.97 percent of all

particles 0.3 micrometers and larger.

Lead alloy means an alloy in which the predominant component is

lead.

Materials storage and handling area means any area of a secondary

lead smelter in which lead-bearing materials (including, but not

limited to, broken battery components, reverberatory furnace slag, flue

dust, and dross) are stored or handled between process steps including,

but not limited to, areas in

[[Page 32217]]

which materials are stored in piles, bins, or tubs, and areas in which

material is prepared for charging to a smelting furnace. Materials

storage and handling area does not include areas used exclusively for

storage of blast furnace slag.

Partial enclosure means a structure comprised of walls or

partitions on at least three sides or three-quarters of the perimeter

surrounding stored materials or process equipment to prevent the

entrainment of particulate matter into the air.

Pavement cleaning means the use of vacuum equipment, water sprays,

or a combination thereof to remove dust or other accumulated material

from the paved areas of a secondary lead smelter.

Plant roadway means any area of a secondary lead smelter that is

subject to vehicle traffic, including traffic by fork lifts, front-end

loaders, or vehicles carrying whole batteries or cast lead ingots.

Excluded from this definition are employee and visitor parking areas,

provided they are not subject to traffic by vehicles carrying lead-

bearing materials.

Process fugitive emission source means a source of hazardous air

pollutant emissions at a secondary lead smelter that is associated with

lead smelting or refining, but is not the primary exhaust stream from a

smelting furnace, and is not a fugitive dust source. Process fugitive

sources include, but are not limited to, smelting furnace charging

points, smelting furnace lead and slag taps, refining kettles,

agglomerating furnaces, and drying kiln transition pieces.

Refining kettle means an open-top vessel that is constructed of

cast iron or steel and is indirectly heated from below and contains

molten lead for the purpose of refining and alloying the lead. Included

are pot furnaces, receiving kettles, and holding kettles.

Reverberatory furnace means a refractory-lined furnace that uses

one or more flames to heat the walls and roof of the furnace and lead-

bearing scrap to such a temperature (greater than 980 deg.C) that lead

compounds are chemically reduced to elemental lead metal.

Rotary furnace (also known as a rotary reverberatory furnace) means

a furnace consisting of a refractory-lined chamber that rotates about a

horizontal axis and that uses one or more flames to heat the walls of

the furnace and lead-bearing scrap to such a temperature (greater than

980 deg.C) that lead compounds are chemically reduced to elemental

lead metal.

Secondary lead smelter means any facility at which lead-bearing

scrap material, primarily, but not limited to, lead-acid batteries, is

recycled into elemental lead or lead alloys by smelting.

Smelting means the chemical reduction of lead compounds to

elemental lead or lead alloys through processing in high-temperature

(greater than 980 deg.C) furnaces including, but not limited to, blast

furnaces, reverberatory furnaces, rotary furnaces, and electric

furnaces.

Total enclosure means a roofed and walled structure with limited

openings to allow access and egress for people and vehicles that meets

the requirements of 40 CFR 265.1101(a)(1), (a)(2)(i), and (c)(1)(i).

Vehicle wash means a device for removing dust and other accumulated

material from the wheels, body, and underside of a vehicle to prevent

the inadvertent transfer of lead contaminated material to another area

of a secondary lead smelter or to public roadways.

Wet suppression means the use of water, water combined with a

chemical surfactant, or a chemical binding agent to prevent the

entrainment of dust into the air from fugitive dust sources.

Sec. 63.543 Standards for process sources.

(a) No owner or operator of a secondary lead smelter shall

discharge or cause to be discharged into the atmosphere from any

existing, new, or reconstructed blast, reverberatory, rotary, or

electric smelting furnace any gases that contain lead compounds in

excess of 2.0 milligrams of lead per dry standard cubic meter (0.00087

grains of lead per dry standard cubic foot).

(b) [Reserved]

(c) No owner or operator of a secondary lead smelter with a

collocated blast furnace and reverberatory furnace shall discharge or

cause to be discharged into the atmosphere from any existing, new, or

reconstructed blast furnace or reverberatory furnace any gases that

contain total hydrocarbons in excess of 20 parts per million by volume,

expressed as propane corrected to 4 percent carbon dioxide, except as

allowed under Paragraphs (c)(1) and (c)(2) of this section.

(1) No owner or operator of a secondary lead smelter with a

collocated blast furnace and reverberatory furnace shall discharge or

cause to be discharged into the atmosphere from any existing blast

furnace any gases that contain total hydrocarbons in excess of 360

parts per million by volume, expressed as propane corrected to 4

percent carbon dioxide, during periods when the reverberatory furnace

is not operating.

(2) No owner or operator of a secondary lead smelter with a

collocated blast furnace and reverberatory furnace shall discharge or

cause to be discharged into the atmosphere from any blast furnace that

commences construction or reconstruction after June 9, 1994, any gases

that contain total hydrocarbons in excess of 70 parts per million by

volume, expressed as propane corrected to 4 percent carbon dioxide,

during periods when the reverberatory furnace is not operating.

(d) No owner or operator of a secondary lead smelter with only

blast furnaces shall discharge or cause to be discharged into the

atmosphere from any existing blast furnace any gases that contain total

hydrocarbons in excess of 360 parts per million by volume, expressed as

propane corrected to 4 percent carbon dioxide.

(e) No owner or operator of a secondary lead smelter with only

blast furnaces shall discharge or cause to be discharged into the

atmosphere from any blast furnace that commences construction or

reconstruction after June 9, 1994, any gases that contain total

hydrocarbons in excess of 70 parts per million by volume, expressed as

propane corrected to 4 percent carbon dioxide.

(f) If the owner or operator of a blast furnace or collocated blast

furnace and reverberatory furnace combines the blast furnace charging

process fugitive emissions with the blast furnace process emissions and

discharges them to the atmosphere through a common emission point, then

compliance with the applicable total hydrocarbon concentration limit

under paragraph (c) of this section shall be determined downstream from

the point at which the two emission streams are combined.

(g) If the owner or operator of a blast furnace or a collocated

blast furnace and reverberatory furnace does not combine the blast

furnace charging process fugitive emissions with the blast furnace

process emissions and discharges such emissions to the atmosphere

through separate emission points, then the total hydrocarbon emission

rate for the blast furnace process fugitive emissions shall not be

greater than 0.20 kilograms per hour (0.44 pounds per hour).

(h) Except as provided in paragraph (i) of this section, following

the initial test to demonstrate compliance with paragraph (a) of this

section, the owner or operator of a secondary lead smelter shall

conduct a compliance test for lead compounds on an annual basis (no

later than 12 calendar months following the previous compliance test).

[[Page 32218]]

(i) If a compliance test demonstrates a source emitted lead

compounds at 1.0 milligram of lead per dry standard cubic meter

(0.00044 grains of lead per dry standard cubic foot) or less during the

time of the compliance test, the owner or operator of a secondary lead

smelter shall be allowed up to 24 calendar months from the previous

compliance test to conduct the next annual compliance test for lead

compounds.

(j) The standards for process sources are summarized in table 2.

Table 2.--Summary of Standards for Process Sources

----------------------------------------------------------------------------------------------------------------

Lead compounds

(milligrams

Furnace configuration per dry Total hydrocarbons Citation

standard cubic

meter)

----------------------------------------------------------------------------------------------------------------

Collocated blast furnace and

reverberatory furnace:

When both furnaces operating... 2.0 20 parts per million Sec. 63.543(a),(c).

by volume\1\.

When reverberatory furnace not 2.0 360 parts per million Sec. 63.543(a),(c)(1).

operating. by volume\1\

(existing).

.............. 70 parts per million Sec. 63.543(a),(c)(2).

by volume\1\

(new)\2\.

Blast.............................. 2.0 360 parts per million Sec. 63.543(a),(d).

by volume\1\

(existing).

.............. 70 parts per million Sec. 63.543(e).

by volume\1\

(new)\2\.

.............. 0.20 kilograms per Sec. 63.543(g).

hour\3\.

Reverberatory, rotary, and electric 2.0 Not applicable....... Sec. 63.543(a).

----------------------------------------------------------------------------------------------------------------

\1\ Total hydrocarbons emission limits are as propane at 4 percent carbon dioxide to correct for dilution, based

on a 3-hour average.

\2\ New sources include those furnaces that commence construction or reconstruction after June 9, 1994.

\3\ Applicable to blast furnace charging process fugitive emissions that are not combined with the blast furnace

process emissions prior to the point at which compliance with the total hydrocarbons concentration standard is

determined.

Sec. 63.544 Standards for process fugitive sources.

(a) Each owner or operator of a secondary lead smelter shall

control the process fugitive emission sources listed in paragraphs

(a)(1) through (a)(6) of this section in accordance with the equipment

and operational standards presented in paragraphs (b) and (c) of this

section.

(1) Smelting furnace and dryer charging hoppers, chutes, and skip

hoists;

(2) Smelting furnace lead taps, and molds during tapping;

(3) Smelting furnace slag taps, and molds during tapping;

(4) Refining kettles;

(5) Dryer transition pieces; and

(6) Agglomerating furnace product taps.

(b) Process fugitive emission sources shall be equipped with an

enclosure hood meeting the requirements of paragraphs (b)(1), (b)(2),

or (b)(3) of this section, or be located in a total enclosure subject

to general ventilation that maintains the building at a lower than

ambient pressure to ensure in-draft through any doorway opening.

(1) All process fugitive enclosure hoods except those specified for

refining kettles and dryer transition pieces shall be ventilated to

maintain a face velocity of at least 90 meters per minute (300 feet per

minute) at all hood openings.

(2) Process fugitive enclosure hoods required for refining kettles

in paragraph (a) of this section shall be ventilated to maintain a face

velocity of at least 75 meters per minute (250 feet per minute).

(3) Process fugitive enclosure hoods required over dryer transition

pieces in paragraph (a) of this section shall be ventilated to maintain

a face velocity of at least 110 meters per minute (350 feet per

minute).

(c) Ventilation air from all enclosures hoods and total enclosures

shall be conveyed to a control device. Gases discharged to the

atmosphere from these control devices shall not contain lead compounds

in excess of 2.0 milligrams of lead per dry standard cubic meter

(0.00087 grains per dry standard cubic foot).

(d) All dryer emission vents and agglomerating furnace emission

vents shall be ventilated to a control device that shall not discharge

to the atmosphere any gases that contain lead compounds in excess of

2.0 milligrams of lead per dry standard cubic meter (0.00087 grains per

dry standard cubic foot).

(e) Except as provided in paragraph (f) of this section, following

the date of the initial test to demonstrate compliance with paragraphs

(c) and (d) of this section, the owner or operator of a secondary lead

smelter shall conduct a compliance test for lead compounds on an annual

basis (no later than 12 calendar months following the previous

compliance test).

(f) If a compliance test demonstrates a source emitted lead

compounds at 1.0 milligram of lead per dry standard cubic meter

(0.00044 grains of lead per dry standard cubic foot) or less during the

time of the compliance test, the owner or operator of a secondary lead

smelter shall be allowed up to 24 calendar months from the previous

compliance test to conduct the next annual compliance test for lead

compounds.

(g) The standards for process fugitive sources are summarized in

table 3.

Table 3.--Summary of Standards for Process Fugitive Sources

----------------------------------------------------------------------------------------------------------------

Control device

lead compound Enclosed hood or

emission limit doorway face

Fugitive emission source (milligrams per velocity (meters/ Citation

dry standard minute)

cubic meter)

----------------------------------------------------------------------------------------------------------------

Control Option I

Smelting furnace and dryer charging 2.0 \1\ 90 Sec. 63.544 (b), (c).

hoppers, chutes, and skip hoists.

Smelting furnace lead taps and 2.0 \1\ 90 Sec. 63.544 (b), (c).

molds during tapping.

[[Page 32219]]

Smelting furnace slag taps and 2.0 \1\ 90 Sec. 63.544 (b), (c).

molds during tapping.

Refining kettles................... 2.0 \1\ 75 Sec. 63.544 (b), (c).

Dryer transition pieces............ 2.0 \1\ 110 Sec. 63.544 (b), (c).

Agglomerating furnace process vents 2.0 \1\ 90 Sec. 63.544 (b), (c).

and product taps.

Control Option II

Enclosed building ventilated to a 2.0 ................. Sec. 63.544 (b), (c).

control device.

Applicable to Both Control Options

Dryer and agglomerating furnace 2.0 ................. Sec. 63.544(d).

emission vents.

----------------------------------------------------------------------------------------------------------------

\1\ Enclosure hood face velocity applicable to those process fugitive sources not located in an enclosed

building ventilated to a control device.

Sec. 63.545 Standards for fugitive dust sources.

(a) Each owner or operator of a secondary lead smelter shall

prepare and at all times operate according to a standard operating

procedures manual that describes in detail the measures that will be

put in place to control fugitive dust emission sources within the areas

of the secondary lead smelter listed in paragraphs (a)(1) through

(a)(5) of this section.

(1) Plant roadways;

(2) Battery breaking area;

(3) Furnace area;

(4) Refining and casting area; and

(5) Materials storage and handling area.

(b) The standard operating procedures manual shall be submitted to

the Administrator or delegated authority for review and approval.

(c) The controls specified in the standard operating procedures

manual shall at a minimum include the requirements of paragraphs (c)(1)

through (c)(5) of this section.

(1) Plant roadways--paving of all areas subject to vehicle traffic

and pavement cleaning twice per day of those areas, except on days when

natural precipitation makes cleaning unnecessary or when sand or a

similar material has been spread on plant roadways to provide traction

on ice or snow.

(2) Battery breaking area--partial enclosure of storage piles, wet

suppression applied to storage piles with sufficient frequency and

quantity to prevent the formation of dust, and pavement cleaning twice

per day; or total enclosure of the battery breaking area.

(3) Furnace area--partial enclosure and pavement cleaning twice per

day; or total enclosure and ventilation of the enclosure to a control

device.

(4) Refining and casting area--partial enclosure and pavement

cleaning twice per day; or total enclosure and ventilation of the

enclosure to a control device.

(5) Materials storage and handling area--partial enclosure of

storage piles, wet suppression applied to storage piles with sufficient

frequency and quantity to prevent the formation of dust, vehicle wash

at each exit from the area, and paving of the area; or total enclosure

of the area and ventilation of the enclosure to a control device, and a

vehicle wash at each exit.

(d) The standard operating procedures manual shall require that

daily records be maintained of all wet suppression, pavement cleaning,

and vehicle washing activities performed to control fugitive dust

emissions.

(e) No owner or operator of a secondary lead smelter shall

discharge or cause to be discharged into the atmosphere from any

building or enclosure ventilation system any gases that contain lead

compounds in excess of 2.0 milligrams of lead per dry standard cubic

meter (0.00087 grains of lead per dry standard cubic foot).

Sec. 63.546 Compliance dates.

(a) Each owner or operator of an existing secondary lead smelter

shall achieve compliance with the requirements of this subpart no later

than December 23, 1997.

(b) Each owner or operator of a secondary lead smelter that

commences construction or reconstruction after June 9, 1994, shall

achieve compliance with the requirements of this subpart by June 13,

1997 or upon startup of operations, whichever is later.

Sec. 63.547 Test methods.

(a) The following test methods in appendix A of part 60 listed in

paragraphs (a)(1) through (a)(5) of this section shall be used to

determine compliance with the emission standards for lead compounds

under Secs. 63.543(a), 63.544 (c), and (d), and 63.545(e):

(1) Method 1 shall be used to select the sampling port location and

the number of traverse points.

(2) Method 2 shall be used to measure volumetric flow rate.

(3) Method 3 shall be used for gas analysis to determine the dry

molecular weight of the stack gas.

(4) Method 4 shall be used to determine moisture content of the

stack gas.

(5) Method 12 shall be used to determine compliance with the lead

compound emission standards. The minimum sample volume shall be 0.85

dry standard cubic meters (30 dry standard cubic feet) and the minimum

sampling time shall be 60 minutes for each run. Three runs shall be

performed and the average of the three runs shall be used to determine

compliance.

(b) The following test methods in appendix A of part 60 listed in

paragraphs (b)(1) through (b)(5) of this section shall be used, as

specified, to determine compliance with the emission standards for

total hydrocarbons under Sec. 63.543 (c), (d), (e), and (g):

(1) Method 1 shall be used to select the sampling port location to

determine compliance under Sec. 63.543(c), (d), (e), and (g).

(2) Method 2 shall be used to measure volumetric flow rate to

determine compliance under Sec. 63.543(g).

(3) The Single Point Integrated Sampling and Analytical Procedure

of Method 3B shall be used to measure the carbon dioxide content of the

stack gases to determine compliance under Sec. 63.543 (c), (d), and

(e).

(4) Method 4 shall be used to measure moisture content of the stack

gases to determine compliance under Sec. 63.543 (c), (d), (e), and (g).

[[Page 32220]]

(5) Method 25A shall be used to measure total hydrocarbon emissions

to determine compliance under Sec. 63.543 (c), (d), (e), and (g). The

minimum sampling time shall be 1 hour for each run. A minimum of three

runs shall be performed. A 1-hour average total hydrocarbon

concentration shall be determined for each run and the average of the

three 1-hour averages shall be used to determine compliance. The total

hydrocarbon emissions concentrations for determining compliance under

Sec. 63.543(c), (d), and (e) shall be expressed as propane and shall be

corrected to 4 percent carbon dioxide, as described in paragraph (c) of

this section.

(c) For the purposes of determining compliance with the emission

limits under Sec. 63.543 (c), (d), and (e), the measured total

hydrocarbon concentrations shall be corrected to 4 percent carbon

dioxide as listed in paragraphs (c)(1) through (c)(2) of this section

in the following manner:

(1) If the measured percent carbon dioxide is greater than 0.4

percent in each compliance test, the correction factor shall be

determined by using equation (1).

[GRAPHIC] [TIFF OMITTED] TR13JN97.000

where:

F = correction factor (no units)

CO2 = percent carbon dioxide measured using Method 3B,

where the measured carbon dioxide is greater than 0.4 percent.

(2) If the measured percent carbon dioxide is equal to or less than

0.4 percent, then a correction factor (F) of 10 shall be used.

(3) The corrected total hydrocarbon concentration shall be

determined by multiplying the measured total hydrocarbon concentration

by the correction factor (F) determined for each compliance test.

(d) Compliance with the face velocity requirements under

Sec. 63.544(b) for process fugitive enclosure hoods shall be determined

by the following test methods in paragraphs (d)(1) or (d)(2) of this

section.

(1) Owners and operators shall calculate face velocity using the

procedures in paragraphs (d)(1)(i) through (d)(1)(iv) of this section.

(i) Method 1 shall be used to select the sampling port location in

the duct leading from the process fugitive enclosure hood to the

control device.

(ii) Method 2 shall be used to measure the volumetric flow rate in

the duct from the process fugitive enclosure hood to the control

device.

(iii) The face area of the hood shall be determined from

measurement of the hood. If the hood has access doors, then face area

shall be determined with the access doors in the position they are in

during normal operating conditions.

(iv) Face velocity shall be determined by dividing the volumetric

flow rate determined in paragraph (d)(1)(ii) of this section by the

total face area for the hood determined in paragraph (d)(1)(iii) of

this section.

(2) The face velocity shall be measured directly using the

procedures in paragraphs (d)(2)(i) through (d)(2)(v) of this section.

(i) A propeller anemometer or equivalent device shall be used to

measure hood face velocity.

(ii) The propeller of the anemometer shall be made of a material of

uniform density and shall be properly balanced to optimize performance.

(iii) The measurement range of the anemometer shall extend to at

least 300 meters per minute (1,000 feet per minute).

(iv) A known relationship shall exist between the anemometer signal

output and air velocity, and the anemometer must be equipped with a

suitable readout system.

(v) Hood face velocity shall be determined for each hood open

during normal operation by placing the anemometer in the plane of the

hood opening. Access doors shall be positioned consistent with normal

operation.

(e) Owners and operators shall determine compliance with the

doorway in-draft requirement for enclosed buildings in Sec. 63.544(b)

using the procedures in paragraphs (e)(1) or (e)(2) of this section.

(1)(i) Owners and operators shall use a propeller anemometer or

equivalent device meeting the requirements of paragraphs (d)(2)(ii)

through (d)(2)(iv) of this section.

(ii) Doorway in-draft shall be determined by placing the anemometer

in the plane of the doorway opening near its center.

(iii) Doorway in-draft shall be demonstrated for each doorway that

is open during normal operation with all remaining doorways in the

position they are in during normal operation.

(2)(i) Owners and operators shall install a differential pressure

gage on the leeward wall of the building to measure the pressure

difference between the inside and outside of the building.

(ii) The pressure gage shall be certified by the manufacturer to be

capable of measuring pressure differential in the range of 0.02 to 0.2

mm Hg.

(iii) Both the inside and outside taps shall be shielded to reduce

the effects of wind.

(iv) Owners and operators shall demonstrate the inside of the

building is maintained at a negative pressure as compared to the

outside of the building of no less than 0.02 mm Hg when all doors are

in the position they are in during normal operation.

Sec. 63.548 Monitoring requirements.

(a) Owners and operators of secondary lead smelters shall prepare,

and at all times operate according to, a standard operating procedures

manual that describes in detail procedures for inspection, maintenance,

and bag leak detection and corrective action plans for all baghouses

(fabric filters) that are used to control process, process fugitive, or

fugitive dust emissions from any source subject to the lead emission

standards in Secs. 63.543, 63.544, and 63.545, including those used to

control emissions from building ventilation. This provision shall not

apply to process fugitive sources that are controlled by wet scrubbers.

(b) The standard operating procedures manual for baghouses required

by paragraph (a) of this section shall be submitted to the

Administrator or delegated authority for review and approval.

(c) The procedures specified in the standard operating procedures

manual for inspections and routine maintenance shall, at a minimum,

include the requirements of paragraphs (c)(1) through (c)(9) of this

section.

(1) Daily monitoring of pressure drop across each baghouse cell.

(2) Weekly confirmation that dust is being removed from hoppers

through visual inspection, or equivalent means of ensuring the proper

functioning of removal mechanisms.

(3) Daily check of compressed air supply for pulse-jet baghouses.

(4) An appropriate methodology for monitoring cleaning cycles to

ensure proper operation.

(5) Monthly check of bag cleaning mechanisms for proper functioning

through visual inspection or equivalent means.

(6) Monthly check of bag tension on reverse air and shaker-type

baghouses. Such checks are not required for shaker-type baghouses using

self-tensioning (spring loaded) devices.

(7) Quarterly confirmation of the physical integrity of the

baghouse through visual inspection of the baghouse interior for air

leaks.

(8) Quarterly inspection of fans for wear, material buildup, and

corrosion

[[Page 32221]]

through visual inspection, vibration detectors, or equivalent means.

(9) Except as provided in paragraphs (g) and (h) of this section,

continuous operation of a bag leak detection system.

(d) The procedures specified in the standard operating procedures

manual for maintenance shall, at a minimum, include a preventative

maintenance schedule that is consistent with the baghouse

manufacturer's instructions for routine and long-term maintenance.

(e) The bag leak detection system required by paragraph (a)(9) of

this section, shall meet the specifications and requirements of

paragraphs (e)(1) through (e)(8) of this section.

(1) The bag leak detection system must be certified by the

manufacturer to be capable of detecting particulate matter emissions at

concentrations of 10 milligram per actual cubic meter (0.0044 grains

per actual cubic foot) or less.

(2) The bag leak detection system sensor must provide output of

relative particulate matter loadings.

(3) The bag leak detection system must be equipped with an alarm

system that will alarm when an increase in relative particulate

loadings is detected over a preset level.

(4) The bag leak detection system shall be installed and operated

in a manner consistent with available written guidance from the U.S.

Environmental Protection Agency or, in the absence of such written

guidance, the manufacturer's written specifications and recommendations

for installation, operation, and adjustment of the system.

(5) The initial adjustment of the system shall, at a minimum,

consist of establishing the baseline output by adjusting the

sensitivity (range) and the averaging period of the device, and

establishing the alarm set points and the alarm delay time.

(6) Following initial adjustment, the owner or operator shall not

adjust the sensitivity or range, averaging period, alarm set points, or

alarm delay time, except as detailed in the approved SOP required under

paragraph (a) of this section. In no event shall the sensitivity be

increased by more than 100 percent or decreased more than 50 percent

over a 365 day period unless such adjustment follows a complete

baghouse inspection which demonstrates the baghouse is in good

operating condition.

(7) For negative pressure, induced air baghouses, and positive

pressure baghouses that are discharged to the atmosphere through a

stack, the bag leak detector must be installed downstream of the

baghouse and upstream of any wet acid gas scrubber.

(8) Where multiple detectors are required, the system's

instrumentation and alarm may be shared among detectors.

(f) The standard operating procedures manual required by paragraph

(a) of this section shall include a corrective action plan that

specifies the procedures to be followed in the case of a bag leak

detection system alarm. The corrective action plan shall include, at a

minimum, the procedures used to determine and record the time and cause

of the alarm as well as the corrective actions taken to correct the

control device malfunction or minimize emissions as specified in

paragraphs (f)(1) and (f)(2) of this section.

(1) The procedures used to determine the cause of the alarm must be

initiated within 30 minutes of the alarm.

(2) The cause of the alarm must be alleviated by taking the

necessary corrective action(s) which may include, but not be limited

to, paragraphs (f)(2)(i) through (f)(2)(vi) of this section.

(i) Inspecting the baghouse for air leaks, torn or broken filter

elements, or any other malfunction that may cause an increase in

emissions.

(ii) Sealing off defective bags or filter media.

(iii) Replacing defective bags or filter media, or otherwise

repairing the control device.

(iv) Sealing off a defective baghouse compartment.

(v) Cleaning the bag leak detection system probe, or otherwise

repairing the bag leak detection system.

(vi) Shutting down the process producing the particulate emissions.

(g) Baghouses equipped with HEPA filters as a secondary filter used

to control process, process fugitive, or fugitive dust emissions from

any source subject to the lead emission standards in Sec. 63.543,

63.544, or 63.545 are exempt from the requirement in Sec. 63.548(c)(9)

of this section to be equipped with a bag leak detector. The owner or

operator of an affected source that uses a HEPA filter shall monitor

and record the pressure drop across the HEPA filter system daily. If

the pressure drop is outside the limit(s) specified by the filter

manufacturer, the owner or operator must take appropriate corrective

measures, which may include but not be limited to those given in

paragraphs (g)(1) through (g)(4) of this section.

(1) Inspecting the filter and filter housing for air leaks and torn

or broken filters.

(2) Replacing defective filter media, or otherwise repairing the

control device.

(3) Sealing off a defective control device by routing air to other

control devices.

(4) Shutting down the process producing the particulate emissions.

(h) Baghouses that are used exclusively for the control of fugitive

dust emissions from any source subject to the lead emissions standard

in Sec. 63.545 are exempt from the requirement in Sec. 63.548(c)(9) of

this section to be equipped with a bag leak detector.

(i) The owner or operator of a secondary lead smelter that uses a

wet scrubber to control particulate matter and metal hazardous air

pollutant emissions from a process fugitive source shall monitor and

record the pressure drop and water flow rate of the wet scrubber during

the initial test to demonstrate compliance with the lead emission limit

under Sec. 63.544(c) and (d). Thereafter, the owner or operator shall

monitor and record the pressure drop and water flow rate at least once

every hour and shall maintain the pressure drop and water flow rate no

lower than 30 percent below the pressure drop and water flow rate

measured during the initial compliance test.

(j) The owner or operator of a blast furnace or collocated blast

furnace and reverberatory furnace subject to the total hydrocarbon

standards in Sec. 63.543 (c), (d), or (e), must comply with the

requirements of either paragraph (j)(1) or (j)(2) of this section, to

demonstrate continuous compliance with the total hydrocarbon emission

standards.

(1) Continuous Temperature Monitoring. (i) The owner or operator of

a blast furnace or a collocated blast furnace and reverberatory furnace

subject to the total hydrocarbon emission standards in Sec. 63.543 (c),

(d), or (e) shall install, calibrate, maintain, and continuously

operate a device to monitor and record the temperature of the

afterburner or the combined blast furnace and reverberatory furnace

exhaust streams consistent with the requirements for continuous

monitoring systems in subpart A, General Provisions.

(ii) Prior to or in conjunction with the initial compliance test to

determine compliance with Sec. 63.543 (c), (d), or (e), the owner or

operator shall conduct a performance evaluation for the temperature

monitoring device according to Sec. 63.8(e) of the General Provisions.

The definitions, installation specifications, test procedures, and data

reduction procedures for determining calibration drift, relative

accuracy, and reporting described in Performance Specification 2, 40

CFR Part 60, Appendix B, Sections 2, 3, 5, 7, 8, 9, and

[[Page 32222]]

10 shall be used to conduct the evaluation. The temperature monitoring

device shall meet the following performance and equipment

specifications:

(A) The recorder response range must include zero and 1.5 times the

average temperature identified in paragraph (j)(1)(iii) of this

section.

(B) The monitoring system calibration drift shall not exceed 2

percent of 1.5 times the average temperature identified in paragraph

(j)(1)(iii) of this section.

(C) The monitoring system relative accuracy shall not exceed 20

percent.

(D) The reference method shall be an National Institute of

Standards and Technology calibrated reference thermocouple-

potentiometer system or an alternate reference, subject to the approval

of the Administrator.

(iii) The owner or operator of a blast furnace or a collocated

blast furnace and reverberatory furnace subject to the total

hydrocarbon emission standards shall monitor and record the temperature

of the afterburner or the combined blast furnace and reverberatory

furnace exhaust streams every 15 minutes during the total hydrocarbon

compliance test and determine an arithmetic average for the recorded

temperature measurements.

(iv) To remain in compliance with the standards for total

hydrocarbons, the owner or operator must maintain an afterburner or

combined exhaust temperature such that the average temperature in any

3-hour period does not fall more than 28 deg.C (50 deg.F) below the

average established in paragraph (j)(1)(iii) of this section. An

average temperature in any 3-hour period that falls more than 28 deg.C

(50 deg.F) below the average established in paragraph (j)(1)(iii) of

this section, shall constitute a violation of the applicable emission

standard for total hydrocarbons under Sec. 63.543 (c), (d), or (e).

(2) Continuous Monitoring of Total Hydrocarbon Emissions. (i) The

owner or operator of a secondary lead smelter shall install, operate,

and maintain a total hydrocarbon continuous monitoring system and

comply with all of the requirements for continuous monitoring systems

found in subpart A, General Provisions.

(ii) Prior to or in conjunction with the initial compliance test to

determine compliance with Sec. 63.543 (c), (d), or (e), the owner or

operator shall conduct a performance evaluation for the total

hydrocarbon continuous monitoring system according to Sec. 63.8(e) of

the General Provisions. The monitor shall meet the performance

specifications of Performance Specification 8, 40 CFR Part 60, Appendix

B.

(iii) Allowing the 3-hour average total hydrocarbon concentration

to exceed the applicable total hydrocarbon emission limit under

Sec. 63.543 shall constitute a violation of the applicable emission

standard for total hydrocarbons under Sec. 63.543 (c), (d), or (e).

Sec. 63.549 Notification requirements.

(a) The owner or operator of a secondary lead smelter shall comply

with all of the notification requirements of Sec. 63.9 of subpart A,

General Provisions.

(b) The owner or operator of a secondary lead smelter shall submit

the fugitive dust control standard operating procedures manual required

under Sec. 63.545(a) and the standard operating procedures manual for

baghouses required under Sec. 63.548(a) to the Administrator or

delegated authority along with a notification that the smelter is

seeking review and approval of these plans and procedures. Owners or

operators of existing secondary lead smelters shall submit this

notification no later than July 23, 1997. The owner or operator of a

secondary lead smelter that commences construction or reconstruction

after June 9, 1994, shall submit this notification no later than 180

days before startup of the constructed or reconstructed secondary lead

smelter, but no sooner than June 13, 1997. An affected source that has

received a construction permit from the Administrator or delegated

authority on or before June 23, 1995, shall submit this notification no

later than July 23, 1997.

Sec. 63.550 Recordkeeping and reporting requirements.

(a) The owner or operator of a secondary lead smelter shall comply

with all of the recordkeeping requirements under Sec. 63.10 of the

General Provisions. In addition, each owner or operator of a secondary

lead smelter shall maintain for a period of 5 years, records of the

information listed in paragraphs (a)(1) through (a)(6) of this section.

(1) An identification of the date and time of all bag leak

detection system alarms, their cause, and an explanation of the

corrective actions taken.

(2) If an owner or operator chooses to demonstrate continuous

compliance with the total hydrocarbon emission standards under

Sec. 63.543 (c), (d), or (e) by employing the method allowed in

Sec. 63.548(j)(1), the records shall include the output from the

continuous temperature monitor, an identification of periods when the

3-hour average temperature fell below the minimum established under

Sec. 63.548(j)(1), and an explanation of the corrective actions taken.

(3) If an owner or operator chooses to demonstrate continuous

compliance with the total hydrocarbon emission standard under

Sec. 63.543 (c), (d), or (e) by employing the method allowed in

Sec. 63.548(j)(2), the records shall include the output from the total

hydrocarbon continuous monitoring system, an identification of the

periods when the 3-hour average total hydrocarbon concentration

exceeded the applicable standard and an explanation of the corrective

actions taken.

(4) Any recordkeeping required as part of the practices described

in the standard operating procedures manual required under

Sec. 63.545(a) for the control of fugitive dust emissions.

(5) Any recordkeeping required as part of the practices described

in the standard operating procedures manual for baghouses required

under Sec. 63.548(a).

(6) Records of the pressure drop and water flow rate for wet

scrubbers used to control metal hazardous air pollutant emissions from

process fugitive sources.

(b) The owner or operator of a secondary lead smelter shall comply

with all of the reporting requirements under Sec. 63.10 of the General

Provisions. The submittal of reports shall be no less frequent than

specified under Sec. 63.10(e)(3) of the General Provisions. Once a

source reports a violation of the standard or excess emissions, the

source shall follow the reporting format required under

Sec. 63.10(e)(3) until a request to reduce reporting frequency is

approved.

(c) In addition to the information required under Sec. 63.10 of the

General Provisions, reports required under paragraph (b) of this

section shall include the information specified in paragraphs (c)(1)

through (c)(6) of this section.

(1) The reports shall include records of all alarms from the bag

leak detection system specified in Sec. 63.548(e).

(2) The reports shall include a description of the procedures taken

following each bag leak detection system alarm pursuant to

Sec. 63.548(f) (1) and (2).

(3) The reports shall include the information specified in either

paragraph (c)(3)(i) or (c)(3)(ii) of this section, consistent with the

monitoring option selected under Sec. 63.548(h).

(i) A record of the temperature monitor output, in 3-hour block

averages, for those periods when the temperature monitored pursuant to

Sec. 63.548(j)(1) fell below the level established in

Sec. 63.548(j)(1).

[[Page 32223]]

(ii) A record of the total hydrocarbon concentration, in 3-hour

block averages, for those periods when the total hydrocarbon

concentration being monitored pursuant to Sec. 63.548(j)(2) exceeds the

relevant limits established in Sec. 63.543 (c), (d), and (e).

(4) The reports shall contain a summary of the records maintained

as part of the practices described in the standard operating procedures

manual for baghouses required under Sec. 63.548(a), including an

explanation of the periods when the procedures were not followed and

the corrective actions taken.

(5) The reports shall contain an identification of the periods when

the pressure drop and water flow rate of wet scrubbers used to control

process fugitive sources dropped below the levels established in

Sec. 63.548(i), and an explanation of the corrective actions taken.

(6) The reports shall contain a summary of the fugitive dust

control measures performed during the required reporting period,

including an explanation of the periods when the procedures outlined in

the standard operating procedures manual pursuant to Sec. 63.545(a)

were not followed and the corrective actions taken. The reports shall

not contain copies of the daily records required to demonstrate

compliance with the requirements of the standard operating procedures

manuals required under Secs. 63.545(a) and 63.548(a).

[FR Doc. 97-15570 Filed 6-12-97; 8:45 am]

BILLING CODE 6560-50-P