### CITY OF PH ILADELPHIA 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 ozon e 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 whic h 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 ma jor 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 thre shold 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 2.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUMAINT2 2.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUMAINT3 5.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUMAINT4 5.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC1 8.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC2 8.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC3 8.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC18 0.25 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC19 0.27 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC20 0.80 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC21 0.80 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC22 0.80 No. 2 fuel oil 25 PA Code 129.93 (c ) CUDC13 2.80 No. 2 fuel oil 25 PA Code 129.93 (c ) CUDC14 2.80 No. 2 fuel oil 25 PA Code 129.93 (c ) CUDC15 2.80 No. 2 fuel oil 25 PA Code 129.93 (c ) CUDC10 7.22 No. 2 fuel oil 25 PA Code 129.93 (c ) CUDC11 7.22 No. 2 fuel oil 25 PA Code 129.93 (c ) CUDC12 7.22 No. 2 fuel oil 25 PA Code 129.93 (c ) CUPICC6 8.76 No. 2 fuel oil 25 PA Code 129.93 (c ) CUPICC7 8.76 No. 2 fuel oil 25 PA Code 129.93 (c ) CUPICC8 8.76 No. 2 fuel oil 25 PA Code 129.93 (c ) CUPHSW4 1.25 No. 2 fuel oil 25 PA Code 129.93 (c ) CUPHSW5 1.25 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF1 2.22 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF2 2.22 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF3 2.22 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF4 14.70 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF5 14.70 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF6 14.70 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF7 14.70 No. 2 fuel oil 25 PA Code 129.93 (c ) CUCFCF8 14.70 No. 2 fuel oil 25 PA Code 129.93 (c ) CURCF1 7.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CURCF2 7.00 No. 2 fuel oil 25 PA Code 129.93 (c ) CURCF8 1.04 No. 2 fuel oil 25 PA Code 129.93 (c ) CURCF9 1.04 No. 2 fuel oil 25 PA Code 129.93 (c ) CUHOC16 2.05 Natural Gas 25 PA Code 129.93 (c ) CUHOC23 2.05 Natural Gas 25 PA Code 129.93 (c ) CUHOC24 2.40 Natural Gas 25 PA Code 129.93 (c ) CUHOC25 2.40 Natural Gas 25 PA Code 129.93 (c ) CUDC16 0.52 Natural Gas 25 PA Code 129.93 (c ) CUCFCF24 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF25 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF26 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF27 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF28 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF29 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF30 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF31 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF32 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF18 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF33 1.90 Natural Gas 25 PA Code 129.93 (c ) CUCFCF34 1.90 Natural Gas 25 PA Code 129.93 (c ) CUHBF1 2.25 Natural Gas 25 PA Code 129.93 (c ) CUHBF2 1.71 Natural Gas 25 PA Code 129.93 (c ) CUHBF3 0.74 Natural Gas 25 PA Code 129.93 (c ) CUHBF4 0.91 Natural Gas 25 PA Code 129.93 (c ) CUHBF5 1.07 Natural Gas 25 PA Code 129.93 (c )

### For the all 57 boilers rated less than 15 MMBtu/Hr, th e presumptive RACT requirement of 25 PA Code Section 129.93(c)(1) is the installation, operation, and maintena nce 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 maintena nce 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 excep tion 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 355 Diesel 25 PA Code 129.93 (c )(5) 

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

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

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

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

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

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

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

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

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