Pollutant or Parameter | Emission Standards for a Large MWC | Performance and ComplianceTest Requirements |
Carbon Monoxide* | 100 ppmv - 4 hr block avg. | CEMS. Methods and procedures as specified in 40 CFR § 60.58b(b) and 40 CFR § 60.58b(i). |
Dioxin/Furans* | Before April 28, 2009, 60 nanograms per dry standard cubic meter (total mass) for ESP-based control device and 30 nanograms per dry standard cubic meter (total mass) for non-ESP-based control device. On and after April 28, 2009, the emission limit for ESP-based control device is 35 nanograms per dry standard cubic meter and 30 nanograms per dry standard cubic meter for non ESP-based emission control system. | EPA Reference Method 23. Annual test except as provided in 40 CFR § 60.58b(g)(5)(iii). Applicable test procedures and methods as specified in 40 CFR § 60.58b(g). Certified continuous automated sampling option in lieu of a stack test as specified in 40 CFR 60.58b(g)(10). |
Particulate Matter* | Before April 28, 2009, 0.012 grains per standard cubic feet dry, 27 milligrams per dry standard cubic meter. On and after April 28, 2009, 25 milligrams per dry standard cubic meter. | EPA Reference Method 5. Annual test methods and procedures as specified in 40 CFR § 60.58b(c). Certified CEMS option in lieu of a stack test for monitoring PM emissions discharged to the atmosphere as specified in 40 CFR § 60.58b(c)(10). |
Opacity | 10 percent opacity with COMs. Averaging time is 6 minutes. | EPA Reference Method 9 and COMS. Applicable test procedures and methods as specified in 40 CFR § 60.58b (c). Quality assurance and quality control requirements are as in COMAR 26.11.31. Notwithstanding the requirements in COMAR 26.11.01.10B(6)(a)-(c), the Department may determine compliance and non-compliance with the visible emission limitations by performing EPA reference Method 9 observations based on a 6 minute block average. |
Cd (Cadmium)* | Before April 28, 2009, 40 micrograms per dry standard cubic meter. On and after April 28, 2009, 35 micrograms per dry standard cubic meter. | EPA Reference Method 29. Annual test except as provided in 40 CFR § 60.58b(d). Applicable test procedures and methods as specified in 40 CFR § 60.58b(d). Certified CEMS option in lieu of a stack test as specified in 40 CFR § 60.58b(d)(3) and 60.58(n) . |
Pb(Lead)* | Before April 28,2009, 440 micrograms per dry standard cubic meter. On and after April 28, 2009, 400 micrograms per dry standard cubic meter. | EPA Reference Method 29. Annual test except as provided in 40 CFR § 60.58b(d). Applicable test procedures and methods as specified in 40 CFR § 60.58b(d). Certified CEMS option in lieu of a stack test as specified in 40 CFR § 60.58b(d)(3) and 60.58(n) . |
Hg (Mercury)* | Before April 28,2009, 80 micrograms per dry standard cubic meter or 85 percent reduction by weight, whichever is less restrictive. On and after April 28, 2009, 50 micrograms per dry standard cubic meter or 85 percent reduction by weight, whichever is less restrictive. | EPA Reference Method 29. Annual test except as provided in 40 CFR § 60.58b(d) and (m). Applicable test procedures and methods as provided in 40 CFR § 60.58b(d). Certified CEMS option in lieu of a stack test as specified in 40 CFR § 60.58b(d)(4) and 60.58(n) . |
SO2Sulfur Dioxide)* | 29 ppmv-24-hr geometric mean or 75 percent reduction, whichever is less restrictive. | CEMS. Applicable test procedures and methods as specified in 40 CFR § 60.58b(e). |
HCl (Hydrogen Chloride)* | 29 ppmv or 95 percent reduction, whichever is less restrictive | EPA Reference Method 26. Annual test except as provided in 40 CFR § 60.58b(f). Applicable test procedures and methods as provided in 40 CFR § 60.58b(f). Certified CEMS option in lieu of a stack test as specified in 40 CFR § 60.58b(f)(8) and 60.58(n) . |
NOx (Oxides of Nitrogen)* | 205 ppmv 24-hr arithmetic average. Mass burn refractory MWC is exempt. | CEMS (only for sources to which an emission standard applies). Applicable test procedures and methods as provided in 40 CFR § 60.58b(h). |
Load | Not to exceed 110 percent of maximum load during most recent dioxin/furan performance test. | Continuous monitoring.-4-hr block arithmetic average steam load. Applicable test procedures and methods are as provided in 40 CFR § 60.58b(i). |
Temperature | The maximum particulate matter control device inlet temperature must not exceed by more than 17°C the temperature during the most recent dioxin/furan test demonstrating compliance. | Continuous monitoring. The temperature shall be calculated in 4-hr block arithmetic averages. Applicable test procedures and methods are as provided in 40 CFR § 60.58b(i) and exemptions in 40 CFR § 60.53b(c). |
Fugitive Ash Emissions | Visible emissions less than 5 percent of the observation period (i.e., 9 minutes per 3-hour period) during ash transfer. | EPA Reference Method 22 observations as specified in 40 CFR § 60.58b(k). Annual test. The emission limit excludes visible emissions discharged inside buildings or enclosures of ash-conveying systems during maintenance and repair of ash-conveying systems as specified in 40 CFR § 60.55b. |
* Corrected to 7 percent oxygen on dry basis. If a CO2 monitor is selected as the dilutent monitor it must meet the requirements of 40CFR § 60.58b (b)(6)
Md. Code Regs. 26.11.08.08
Regulation .08 adopted effective November 23, 1992 (19:23 Md. R. 2042)
Regulations .08 and new Regulation .08 adopted effective November 17, 1997 (24:23 Md. R. 1612)
Regulation .08 amended effective October 8, 2007 (34:20 Md. R. 1741)
Regulation .08C, D amended effective September 7, 1998 (25:18 Md. R. 1438); amended effective 43:3 Md. R. 273, eff.2/15/2016