STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS DEPARTMENT OF ENVIRONMENT AL MANAGEMENT OFFICE OF AIR RESOURCES 

### AIR POLLUTION CONTROL REGULATION NO. 6 CONTINUOUS EMISSIONS MONITORS

Effective 2 August 1967 LastAmended 19 July 2007



### AUTHORITY: These regulations are authorized pursuant to R.I. Gen. Laws§ 42- l 7.l-2(s) and 23-23, as amended, and have been promulgated pursuant to the procedures set forth 

### in the 

### R.J. Administrative Procedures Act, R.I
. Gen. Laws Chapter 42-35.

### RHODE ISLAND DEPARTMENT OF ENVIRONMENTAL MANAGEMENT OFFICE OF AIR RESOURCES AIR POLLUTION CONTROL REGULATION NO. 6 CONTINUOUS EMISSION MONITORS

6.1 Definitions Unless otherwise expressly defined in this section, the terms used in this regulation shall be defined byreference to the Rhode Island AirPollution Control General Definitions Regulation.. As used in this regulation the following terms shall, where the context permits, be construed as follows: 6
. 1. l 

### "Opacity monitor" means a photoelectric smoke detector which is permanently installed in breeching or stack. 

### 6.2 Requirements 6.2.1 Stationary sources maybe required to install and operate a continuous emissions monitoring system. All such systems must be approved by the Director prior to installation. 6.2.2 The following fossil fuel fired steam orhotwater generating units shall be equipped with an opacitymonitor with audio alarm: (a) All units burning No. 6 residual oil or solid fuel. (b) Units burning all other liquid fuels and having a heat input capacity offive million Btu per hour ormore. 6.2.3 These devices shall be calibrated to sound the alann at 20 percent opacity and operated continuously during combustion offuel. Ifmore than one unit is served by a single stack, this requirement maybe met with a single device located to detect any visibleproducts ofcombustion from each unit. The audio alarm must be located in an area where it will beheard by the operator ofor other person responsible for the unit(s). 6.2.4 Stationary sources as specified in Title 40 ofCFR Part 51, Appendix P, parts 1

-5, as amended, shall install, calibrate, operate, and maintain a continuous emission monitoring system in accordance with all requirements set forth orreferenced therein. 

### In addition to the minimum datarequirements set forth in 40 CFR Part 51, Appendix P, parts 1-5, such subject stationary sources shall record and report the total process operating time ofthe equipment for each calendar quarter to the Office Page I of3ofAir Resources. 6.2.5 The Department shall use the resulting CEM data to determine compliance with applicable emission limits and/or operating and maintenance requirements. The data required to be collected by this regulation mustbe kept for at least two years and may be used either directly or indirectlyfor compliance determinations or any purpose deemed appropriate bythe Department. 6.2.6 The monitoring and recording required by 6.2.4 ofthis regulation shall begin 18 months from the effective date ofthis regulation. 

### 6.3 Exemptions 6.3.1 This regulation does not apply to private residences
. 6.3.2 Sources as specified in paragraphs 1.2.1 through 1.2.3 of40 CFR Part 51 Appendix p are exempt from these monitoring requirements. 

### 6.4 General Provisions 6.4.l

6.4.2



### 6.4.3

6.4.4 Purpose The purpose ofthis regulation is to specify the requirements for continuous emissions monitors for opacity at stationary sources. Authority These regulations are authorized pursuant to R.I. Gen. Laws§ 42-17.1-2(s) and 23-23, as amended, and have been promulgated pursuant to the procedures set forth in the R.I. Administrative Procedures Act, R.I. Gen
. Laws Chapter 42-35 Application The tenlis and provisions ofthis regHlation shall be liberally construed to peffilit the Department to effecttlate the p:urposes ofstate law, goals and policies. Severability Ifany provision ofthis regulation or the application thereofto any person or circumstance, is held invalid by a court ofcompetentjurisdiction, the validity of the remainder ofthe regulation shall not be affected thereby.

Pag e 2 of3

### 6.4.5 Effective Date The foregoing regulation, "Continuous Emissi ons Monitors•·, as amended, after due notice, is hereby adopted and filed with the Secretary ofState this 29th day of June , 2007 to become effective twenty (20) days thereafter, in accordance with the provisions ofChapters 23-23 , 42-35 , 42-17.1 , 42-17.6, of the General Laws ofRhode Island of 1956, as amended.

W. Michael Sullivan, PhD., Director Department ofEnvironmental Management



### Notice Given on: February 21, 2007 Public Hearing held: March 23, 2007 

### Filing Date: June 29, 2007 Effective Date: July 19, 2007

Page 3 of3