MassDEP 1

Emission LimitsWood Fired Electric

Generating Units

EBC Seminar

October 28, 2005

Recovering Renewable Energy from Construction and Demolition Debris Wood

MassDEP 2

Current MassDEP requirement for Emission Limits Case-by-case determination

BACT LAER

Limits in regulations (PM, NOx, opacity)

MassDEP 3

Review of Impacts

Will not exceed NAAQSs Will not exceed AALs/TELs Will not cause a condition of Air

Pollution (e.g. noise, odor, dust)

MassDEP 4

AALs/TELs for C&D wood burningPOLLUTANT TEL (24 hour

std) (ug/cm)AAL (annual std) (ug/cm)

Antimony 2.0 1.0

Arsenic 0.0005 0.0002

Cadmium 0.003 0.001

Chromium (metal) 1.36 0.68

Chromium (VI) compounds 0.003 0.0001

Copper 0.54 0.54

Lead 0.14 0.07

Mercury (elemental) 0.14 0.07

Nickel 0.27 0.18

MassDEP 5

AALs/TELs for C&D wood burning (Continued)POLLUTANT TEL (24 hour

std) (ug/cm)AAL (annual std) (ug/cm)

Selenium 0.54 0.54

Vanadium 0.27 0.27

HCl 7 7

PCDD/PCDF (Teq) 5.4E-08

MassDEP 6

Notice of Inquiry Emission Limits (from permits)Name plate capacity >25 MW

SO2 0.025 #/MMBtu

NOx 0.075 #/MMBtu

Ammonia 13 ppm @ 3%O2

CO 0.1 #/MMBtu

PM10 0.011 #/MMBtu

VOC 0.01 #/MMBtu

Toxics AALs/TELs

Opacity 10%

MassDEP 7

Notice of Inquiry Emission Limits (achievable)Name plate capacity >25 MW

SO2 0.02 #/MMBtu

NOx 0.015 #/MMBtu

Ammonia 2 ppm @ 3%O2

CO 0.01 #/MMBtu

PM10 0.011 #/MMBtu

VOC 0.01#/MMBtu

Opacity 5%

Metals 99.9% removal and AALs/TELs

HCl 50 ppm @ 3%O2

MassDEP 8

Next Steps

Should the standards be input or output standards.

Decide on standards, averaging time, testing and monitoring.