UNITED STATES ENVIRONMENTAL 

REGION IX 

75 Hawthorne Street 

San Francisco, CA 94105·3901 

Teri Ard, Ph.D. 

Environmental Health and Safety Manager 

Johns Manville 

5916 County Road 49 

Willows, California 95988 

NOV 1 2 2015 

AGENCY 

In Reply 

Refer To: 

AIR-3 

SAC 77-07 

Subject: Johns Manville Prevention of Significant Deterioration Permit Amendment 

Dear Ms. Ard: 

This letter is in response to your request dated September 22, 2015 and submitted to the 

United States Environmental Protection Agency, Region 9 (EPA) to consolidate the original 

Prevention of Significant Deterioration (PSD) air quality permit (SAC 77-07) issued on October 

3, 1978, with the subsequent amendments issued as separate addendums to the original PSD 

permit on November 16, 1979, April 6, 1989, April 11, 1990, January 13, 1994, March 1994 

(exact date not known), and June 27, 1996. Per your request, we have consolidated these permits 

into one PSD permit document. We also revised the cover page of the permit and updated the 

EPA and Glenn County APCD addresses in Condition IX of.the permit. The changes made to the 

permit do not authorize any changes in any emission units or result in any changes to emissions. 

We have determined that the changes to the PSD permit are justified and administrative 

in nature. For this reason, we are issuing the amended PSD permit as an administrative 

amendment which is not subject to public notice and review requirements. Therefore, EPA 

hereby amends the permit as requested. Enclosed is the amended PSD permit, which is effective 

immediate I y. 

If you have any questions regarding this matter, please contact Shaheerah Kelly of the 

Permits Office at (415) 947-4156 or kelly.shaheerah@epa.gov. 

Sincerely, 

M .. / ~~k/;1 I ( 

, f ) I' 

~ {Elizabe~ J. Adams 

Acting Director, Air Division 

Enclosure 

Printed on Recycled Paper 
2 

cc: Kevin Tokunaga, Glenn County APCD 

Robe1i Fletcher, California Air Resources Board 

Mona Brandon, Johns Manville 
UNITED ST ATES ENVIRONMENTAL PROTECTION AGENCY 

REGION IX 

75 Hawthorne Street 

San Francisco, CA 94105 

PREVENTION OF SIGNIFICANT DETERIORATION PERMIT 

ISSUED PURSUANT TO THE REQUIREMENTS AT 40 CFR § 52.21 

PSD PERMIT NUMBER: SAC 77-07 

PERMITTEE: Johns Manville 

FACILITY NAME Johns Manville Willows Facility 

FACILITY LOCATION: 5916 County Road 49 

Willows, Glenn County, California, 95988 

Pursuant to the provisions of the Clean Air Act (CAA), Subchapter I, Part C (42 U.S.C. § 7470, 

et. seq.), and the Code of Federal Regulations (CFR) Title 40, Section 52.21, the United States 

Environmental Protection Agency Region 9 (EPA) is issuing this amended Prevention of 

Significant Deterioration (PSD) air quality permit to Johns Manville for the Johns Manville 

Willows Facility as described herein, in accordance with the permit application (and plans 

submitted with the permit application), federal regulations governing the Prevention of 

Significant Deterioration of air quality ( 40 CFR § 52.21 ), and other terms and conditions set 

forth in this amended PSD Permit. 

Failure to comply with any condition or term set forth in this amended PSD Permit is subject to 

enforcement action pursuant to Section 113 of the Clean Air Act. This permit does not relieve 

Johns Manville from the responsibility to comply with any other applicable provisions of the 

CAA (including applicable implementing regulations in 40 CFR Parts 51, 52, 60, 61 and 63), or 

other federal, state, local, and Glenn County Air Pollution Control District requirements. 

Per 40 CFR Section 124.15(b), this PSD Permit becomes effective immediately. 

Date I I 
Page 2 of 7

Johns Manville

PSD Permit No. SAC 77-07

Amended November 12, 2015

ABBREVIATIONS & ACRONYMS

Abbreviation/Acronym Meaning

Act Clean Air Act [42 U.S.C. § 7401 et seq.]

Applicant Johns Manville

BACT Best Available Control Technology

CAA Clean Air Act [42 U.S.C. § 7401 et seq.]

CFR Code of Federal Regulations

EPA United States Environmental Protection Agency

HERM Horizontal collection; Electric melt; Rotary attenuation; and 

Modular design

hr Hour

lb, lbs Pound, pounds

NSPS New Source Performance Standards

Permittee / 

Owner or Operator

Johns Manville, or the owner and/or operator of the Johns 

Manville Willows Facility

PSD Prevention of Significant Deterioration

“PSD Permit”; 

“Authority to 

Construct/Modify”;

“Approval to 

Construct/Modify”

This document
Page 3 of 7

Johns Manville

PSD Permit No. SAC 77-07

Amended November 12, 2015

JOHNS MANVILLE

PREVENTION OF SIGNIFICANT DETERIORATION PERMIT

Permit No. SAC 77-07

FACILITY DESCRIPTION

The Johns Manville Willows Facility manufactures fiberglass insulation products. The facility 

consists of an enclosed processing building and storage silos. The processing building contains

two separate fiberglass mat manufacturing lines, HERM lines 132 and 133, that produce blankets 

of fiberglass insulation in nine distinct steps: raw materials unloading/storage, batch weighing, 

raw material blending and storing, glass melting, fiberizing and collecting, curing, cooling, 

trimming and cutting, and packaging.

1

 Raw materials (e.g., sand) are unloaded from rail cars 

and stored in silos prior to being weighed, blended and transported via enclosed pneumatic 

ducting to the processing building. The raw materials are melted in electric kettles, fiberized, 

collected, cured, and cooled into blankets of fiberglass insulation. The fiberglass insulation 

blankets are then cut, trimmed, and packaged inside the building.

EPA issued the original PSD Permit to Johns Manville for the Johns Manville Willows Facility

on October 3, 1978, for the modification of manufacturing HERM line 132 and for the 

construction and installation of manufacturing HERM line 133. EPA amended the PSD permit 

on the following dates.

• November 16, 1979

• April 6, 1989

• April 11, 1990

• January 13, 1994

• March 1994 (exact date not known)

• June 27, 1996

EPA hereby further amends the PSD Permit based on Johns Manville’s request dated 

September 22, 2015 to compile the original PSD Permit issued on October 3, 1978 and the above 

amendments, which were issued as separate addendums to the PSD Permit, into a single permit 

document.

PERMIT CONDITIONS

I. Notification of Startup

The Regional Administrator shall be notified at the anticipated date of initial startup (as 

defined in 40 CFR 60.2(o)) of each facility of the source not more than sixty (60) days 

nor less than thirty (30) days prior to such date and shall be notified of the actual date of 

startup within fifteen (15) days after such date.

 1

 The term HERM means (1) Horizontal collection, (2) Electric melt, (3) Rotary attenuation, and (4) Modular 

design.
Page 4 of 7

Johns Manville

PSD Permit No. SAC 77-07

Amended November 12, 2015

II. Facilities Operation

All equipment, facilities, or systems installed or used to achieve compliance with the 

terms and conditions of this Approval to Construct/Modify shall at all times be 

maintained in good working order and be operated as efficiently as possible so as to 

minimize air pollutant emissions.

III. Malfunction Reporting

The EPA Regional Administrator shall be notified by telephone, facsimile, or electronic 

mail transmission at aeo_r9@epa.gov within 48 hours following the discovery of any 

failure of air pollution control equipment, process equipment, or of a process to operate in 

a normal manner which results in an increase in emissions above any allowable emission 

limit stated in Section VIII of this PSD Permit. 

In addition, the Regional Administrator shall be notified in writing within fifteen (15) 

days of any such failure. The notification shall include: (1) a description of the 

malfunctioning equipment or abnormal operation, (2) the date of the initial malfunction, 

the period of time over which emissions were increased due to the failure, (3) the cause 

of the failure, (4) the estimated resultant emissions in excess of those allowed under 

Condition VIII of this PSD Permit, and (5) the methods utilized to mitigate emissions and 

restore normal operations. 

Compliance with this malfunction notification provision shall not excuse or otherwise 

constitute a defense to any violation of this PSD permit or of any law or regulation that 

such malfunction may cause.

IV. Right to Entry

The Regional Administrator, the head of the State Air Pollution Control Agency, the head 

of the responsible local Air Pollution Control Agency, and/or their authorized 

representative, upon the presentation of credentials, shall be permitted:

A. to enter upon the premises where the source is located or in which any records are 

required to be kept under the terms and conditions of this Authority to 

Construct/Modify; and

B. at reasonable times to have access to and copy any records required to be kept under 

the terms and conditions of the Authority to Construct/Modify; and 

C. to inspect any equipment, operation, or method required in this Authority to 

Construct/Modify; and

D. to sample emissions from the source.
Page 5 of 7

Johns Manville

PSD Permit No. SAC 77-07

Amended November 12, 2015

V. Transfer of Ownership

In the event of any changes in control or ownership of facilities to be constructed or

modified, this Authority to Construct/Modify shall be binding on all subsequent owners 

and operators. The applicant shall notify the succeeding owner and operator of the 

existence of this Authority to Construct/Modify and its conditions by letter, a copy of 

which shall be forwarded to the Regional Administrator and the State and local Air 

Pollution Control Agency.

VI. Severability

The provisions of this Approval to Construct/Modify are severable, and. if any provision 

of this Approval to Construct/Modify is held invalid, the remainder of this Approval to 

Construct/Modify shall not be affected thereby.

VII. Other Applicable Regulations

The owner and operator of the proposed project shall construct and operate the proposed 

stationary source in compliance with all other applicable provisions of 40 CFR Parts 52, 

60, and 61 and all other applicable federal, state, and local air quality regulations.

VIII. Special Conditions

A. Performance Tests

1. Within 60 days after achieving the maximum production rate of the proposed 

facility, but not later than 180 days after initial startup of this facility (as defined 

in 40 CFR 60.2(o)), and such other times as specified by EPA, Johns Manville 

shall conduct performance tests for particulate matter, and furnish the Glenn 

County Air Pollution Control District and the EPA (Attn: ENF-2-1) a written 

report of the results of such tests.

2. The performance tests for particulate matter shall be conducted for the equipment 

designated below:

Line Operation

132 Collection and curing operations

133 Collection and curing operations

At such times as may be specified by the EPA, the conducting of performance 

tests may be required for any of the operations listed in Condition VIII.B of this 

PSD Permit. With prior approval from the EPA it may not be necessary to source 

test all similar units (modules) associated with the same operation.

Performance tests for the emissions of particulate matter shall be conducted and 

results reported in accordance with the methods set forth in 40 CFR 60.8 and 
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Johns Manville

PSD Permit No. SAC 77-07

Amended November 12, 2015

60.46 of the New Source Performance Standards (NSPS) regulations on the 

equipment named above. The EPA shall be notified at least 30 days in advance of 

such test to allow an observer to be present. In lieu of the above-mentioned test 

methods, equivalent methods may be used if approved by the EPA.

B. Emission Limits for Particulate Matter

On and after the date of startup of the equipment for which the performance test required 

to be conducted by Condition VIII.A of this PSD Permit above is initiated, Johns 

Manville shall not discharge into the atmosphere from the subject equipment, any gases 

which contain particulate matter (PM) in excess of the amounts indicated below for the 

following sources:

Line 132

Source No. Operation Maximum lb/hr

1 Melter 2.95

2, 4-6 Collection 7.00 (per unit)

8 Curing 5.00

9 Cooling 2.50

10-12 Mixed Batch Day Bin 0.20 (per unit)

13 Storage Bin 0.20

14 Blender 0.20

15 Receiver 0.20

16-17 Wool Blowing 0.10(per unit)

18, 38-40 Cullet 0.01 (per unit)

Line 133

Source No. Operation Maximum lb/hr

19-26 Silos 0.20 (only one silo in operation at a time)

27 Melter 2.95

28-30 Collection 7.00 (per unit)

31 Curing 5.00

32 Cooling 2.50

33-35 Mixed Batch Day Bin 0.20 (per unit)

36 Storage Bin 0.20

37 Blender/Receiver 0.40
Page 7 of 7

Johns Manville

PSD Permit No. SAC 77-07

Amended November 12, 2015

IX. Agency Notifications

A. Permit Applications & Permit-Related Requests

The owner or operator shall submit permit applications, permit amendments, and 

other applicable permit information, which includes but not limited to installation of 

control equipment, replacement of an emissions unit, and changes that contravene 

permit terms, to:

Director, Air Division (Attn: AIR-3)

U. S. Environmental Protection Agency Region 9

75 Hawthorne Street

San Francisco, CA 94105

B. Submittals to the Local & State Air Pollution Control Agencies

The owner or operator shall submit copies of all correspondence required by this PSD 

Permit to:

Air Pollution Control Officer

Glenn County Air Pollution Control District

720 North Colusa Street 

Willows, CA 95988

Email: APCD@countyofglenn.net

Chief, Stationary Source Division

California Air Resources Board

P.O. Box 2815

Sacramento, CA 95814

C. Compliance Reporting

Unless otherwise directed by the EPA or this PSD Permit, the owner or operator shall 

submit a copy of all test plans, reports, certifications, notifications, and other 

information pertaining to compliance with this PSD Permit to the following address. 

All notices and submissions shall be sent by certified mail, express mail, or similar 

overnight mail delivery with return receipt requested and addressed to:

Director, Enforcement Division (Attn: ENF-2-1)

U.S. Environmental Protection Agency, Region 9

75 Hawthorne Street

San Francisco, California 94105