CITY OF PHILADELPHIA

Department of Public Health 

Environmental Protection Division 

Air Management Services 

InterOffice Memo 

To: File 

From: Noelle Helmstetter and Maryjoy Ulatowski 

Date: June 26, 2015 

Subject: 8-Hour RACT Analysis for Philadelphia Prison System 

Introduction: 

The Clean Air Act (CAA) requires that moderate (or worse) ozone nonattainment areas implement reasonably 

available control technology (RACT) controls on all major sources of VOC and NOx. Philadelphia County is part of 

the Philadelphia-Wilmington-Atlantic City moderate ozone nonattainment area for the 1997 8-hour ozone NAAQS. 

This document presents the findings of a RACT evaluation for the 1997 8-hour ozone standard for this facility. 

Company Description: 

Philadelphia Prison System is a correctional institution which houses inmates. The facility is located at 8001 State 

Road, Philadelphia, PA 19136. 

Applicability for NOx and VOC RACT: 

The Philadelphia Prison System is a major source of Nitrogen Oxides (NOx) having potential NOx emissions 

greater than 100 tons per year, the major source threshold in Philadelphia County that is applicable to NOx RACT 

for the 1997 8-hour ozone NAAQS. 

The Philadelphia Prison System is not a major source of Volatile Organic Compounds (VOC) having potential VOC 

emissions less than 50 tons per year, the major source threshold in Philadelphia County that is applicable to VOC 

RACT for the 1997 8-hour ozone NAAQS. 

Process Descriptions: 

The facility’s air emission sources contributing to NOx emissions include the following: 

 57 boilers rated less than 15 MMBtu/Hr burning No. 2 oil/ natural gas; 

 10 emergency generators less than or equal to 2,200 hp burning diesel; 

 One (1) 365 hp chiller burning natural gas 

o Unit ID: CURCF6. 

Presumptive RACT: 

The following sources are covered by presumptive RACT regulations, as is specified in the “Presumptive RACT 

regulation” column of the table on the next page. 
Boilers

Unit Heat Input

(MMBTU/hr) Fuel Burned Presumptive RACT Regulation

CUMAINT1 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.00

CUMAINT2 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.00

CUMAINT3 No. 2 fuel oil 25 PA Code 129.93 (c ) 5.00

CUMAINT4 No. 2 fuel oil 25 PA Code 129.93 (c ) 5.00

CUHOC1 No. 2 fuel oil 25 PA Code 129.93 (c ) 8.00

CUHOC2 No. 2 fuel oil 25 PA Code 129.93 (c ) 8.00

CUHOC3 No. 2 fuel oil 25 PA Code 129.93 (c ) 8.00

CUHOC18 No. 2 fuel oil 25 PA Code 129.93 (c ) 0.25

CUHOC19 No. 2 fuel oil 25 PA Code 129.93 (c ) 0.27

CUHOC20 No. 2 fuel oil 25 PA Code 129.93 (c ) 0.80

CUHOC21 No. 2 fuel oil 25 PA Code 129.93 (c ) 0.80

CUHOC22 No. 2 fuel oil 25 PA Code 129.93 (c ) 0.80

CUDC13 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.80

CUDC14 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.80

CUDC15 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.80

CUDC10 No. 2 fuel oil 25 PA Code 129.93 (c ) 7.22

CUDC11 No. 2 fuel oil 25 PA Code 129.93 (c ) 7.22

CUDC12 No. 2 fuel oil 25 PA Code 129.93 (c ) 7.22

CUPICC6 No. 2 fuel oil 25 PA Code 129.93 (c ) 8.76

CUPICC7 No. 2 fuel oil 25 PA Code 129.93 (c ) 8.76

CUPICC8 No. 2 fuel oil 25 PA Code 129.93 (c ) 8.76

CUPHSW4 No. 2 fuel oil 25 PA Code 129.93 (c ) 1.25

CUPHSW5 No. 2 fuel oil 25 PA Code 129.93 (c ) 1.25

CUCFCF1 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.22

CUCFCF2 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.22

CUCFCF3 No. 2 fuel oil 25 PA Code 129.93 (c ) 2.22

CUCFCF4 No. 2 fuel oil 25 PA Code 129.93 (c ) 14.70

CUCFCF5 No. 2 fuel oil 25 PA Code 129.93 (c ) 14.70

CUCFCF6 No. 2 fuel oil 25 PA Code 129.93 (c ) 14.70

CUCFCF7 No. 2 fuel oil 25 PA Code 129.93 (c ) 14.70

CUCFCF8 No. 2 fuel oil 25 PA Code 129.93 (c ) 14.70

CURCF1 No. 2 fuel oil 25 PA Code 129.93 (c ) 7.00

CURCF2 No. 2 fuel oil 25 PA Code 129.93 (c ) 7.00

CURCF8 No. 2 fuel oil 25 PA Code 129.93 (c ) 1.04

CURCF9 No. 2 fuel oil 25 PA Code 129.93 (c ) 1.04

CUHOC16 Natural Gas 25 PA Code 129.93 (c ) 2.05

CUHOC23 Natural Gas 25 PA Code 129.93 (c ) 2.05

CUHOC24 Natural Gas 25 PA Code 129.93 (c ) 2.40

CUHOC25 Natural Gas 25 PA Code 129.93 (c ) 2.40

CUDC16 Natural Gas 25 PA Code 129.93 (c ) 0.52

CUCFCF24 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF25 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF26 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF27 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF28 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF29 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF30 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF31 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF32 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF18 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF33 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUCFCF34 Natural Gas 25 PA Code 129.93 (c ) 1.90

CUHBF1 Natural Gas 25 PA Code 129.93 (c ) 2.25

CUHBF2 Natural Gas 25 PA Code 129.93 (c ) 1.71

CUHBF3 Natural Gas 25 PA Code 129.93 (c ) 0.74

CUHBF4 Natural Gas 25 PA Code 129.93 (c ) 0.91

CUHBF5 Natural Gas 25 PA Code 129.93 (c ) 1.07
 For the all 57 boilers rated less than 15 MMBtu/Hr, the presumptive RACT requirement of 25 PA Code Section 

129.93(c)(1) is the installation, operation, and maintenance of the boiler as per the manufacturer’s specifications. 

Emergency Generators

For the ten (10) emergency generators running less than 500 hours per 12-month period, the presumptive RACT 

requirement is the installation, operation, and maintenance of the boiler as per the manufacturer’s specifications. 

Case-by-Case RACT: 

Chiller

Unit Capacity Fuel 

Burned 

Comment 

CURCF 6 RCF 

Chiller #1 

(with nonselective 

catalytic 

reduction 

device) 

365 bhp Natural 

Gas 

The chiller has a NOx emission limit of 2.0 grams per brake 

horsepower-hour from AMS Installation Permit No. 05079 dated 

May 10, 2005. Per AMS Installation Permit No. 05079, the 

source is equipped with a Non Selective Catalytic Reduction 

(NSCR) Device (installed to meet the Best Available Technology 

(BAT) Requirements of 25 PA Code 127.1). The NOx PTE for 

this source is approximately 7 tons per year (based on 8760 hours 

per year of operation). For this source, AMS determined that the 

2.0 g/bhp-hr emission limit and installation of an NSCR per AMS 

Permit No. 11052 shall be NOx RACT for the 1997 8-hour ozone 

standard. NSCR is the most stringent NOx control for the peakshaving generator and the 2.0 g/bhp-hr limit is the most reasonably 

achievable limit that the generator can meet with the existing 

NSCR technology,. Another control device may be used to meet 

the 2.0 g/bhp-hr NOx emission limit. 

Chiller 

Conclusions and Recommendations: 

All NOx emitting sources are covered by presumptive RACT, with the exception of the chiller. Case-by-case RACT 

for the chiller is a NOx emission limit of 2.0 g/bhp-hr and installation of a NSCR per AMS Installation Permit No. 

05079. The attached RACT permit is submitted for SIP approval. 

 6/26/15 

Edward Wiener, Chief of Source Registration Date 

Unit Capacity

(hp) Fuel Burned Presumptive RACT Regulation

CUPHSW3 Diesel 25 PA Code 129.93 (c )(5) 355

CUHOC11 Diesel 25 PA Code 129.93 (c )(5) 550

CUHOC12 Diesel 25 PA Code 129.93 (c )(5) 211

CUPICC4 Diesel 25 PA Code 129.93 (c )(5) 740

CUPICC5 Diesel 25 PA Code 129.93 (c )(5) 740

CUCFCF21 Diesel 25 PA Code 129.93 (c )(5) 2,200

CUCFCF22 Diesel 25 PA Code 129.93 (c )(5) 2,200

CUCFCF23 Diesel 25 PA Code 129.93 (c )(5) 2,200

CURCF7 Diesel 25 PA Code 129.93 (c )(5) 2,681

CUHBF6 Diesel 25 PA Code 129.93 (c )(5) 355