Colbert Fossil Plant

TVA has taken a number of steps to make the efficient generation of power at Colbert as clean as possible:

Ash from the burned coal is removed and used commercially when possible. The remaining ash is disposed of on-site.
Colbert burns low-sulfur coal to limit emissions of sulfur dioxide.
Low-NOx burners limit emissions of nitrogen oxides.
Colbert Unit 5 operates a selective catalytic reduction system to further reduce nitrogen oxide emissions by about 90 percent.
In support of recent environmental agreements and its vision of being one of the nation’s leading providers of low-cost and cleaner energy by 2020, TVA will control, idle or retire Colbert unit 5 by Dec. 31, 2015. Units 1 through 4 will be controlled, idled or retired by June 30, 2016. Any Colbert units that are idled will be controlled or retired within three years.

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Toxics Release Inventory

All amounts are in pounds

Chemical	Air	Water	Land	Off-Site Disposal	Total
Hydrochloric Acid (aerosol)	280,000	0	0	0	280,000
Hydrogen Fluoride	280,000	0	0	0	280,000
Sulfuric Acid (aerosol)	25,000	0	0	0	25,000
Ammonia	36,500	42	0	0	36,542
Antimony Compounds
Arsenic Compounds
Barium Compounds	2,740	1,460	1,300,000	4	1,304,204
Beryllium Compounds
Cadmium Compounds
Chromium Compounds	195	10	20,500	0	20,705
Cobalt Compounds
Copper Compounds	152	4,022	22,200	0	26,374
Lead Compounds	112	4	11,170	2	11,288
Manganese Compounds	361	570	53,400	0	54,331
Mercury Compounds	140	1	33	0	173
Nickel Compounds
Selenium Compounds
Silver Compounds
Thallium Compounds
Vanadium Compounds	172	370	33,400	0	33,942
Zinc Compounds	724	2,236	35,300	0	38,260
Benzo(g,h,i)perylene	0	0	0	0	0
Naphthalene	32	0	0	0	32
Nitrate Compounds
Dioxin (grams)	1	0	0	0	1
Dioxin (lbs)	0	0	0	0	0
Polycyclic Aromatic Compounds	16	0	5	0	21
Hydrazine					0
Total	626,144	8,714	1,476,008	6	2,110,871