Toxics Release Inventory

The Environmental Protection Agency (EPA) requires industries and utilities to report releases of certain toxic chemicals that may pose a threat to human health and the environment. This requirement is called the Toxics Release Inventory (TRI) and identifies over 650 chemicals. Because of its efforts to prevent and reduce pollution, TVA only releases 23 of these substances in quantities large enough to require reporting.

As a federal agency, TVA must file annual reports on the amounts of TRI-listed chemicals released from all of its operations, not just from its coal- or oil-burning plants as required for nonfederal entities.  Although the amounts are small from these additional operations, the releases reported by TVA are comprehensive and include substances that might be used for cleaning or maintenance activities at any TVA facility, including nuclear or hydroelectric plants.

TVA’s total TRI releases for 2017 were 13,952,404 pounds, down from the 2016 level of 18,857,423 pounds.

2017 data for all reporting facilities

All amounts are in pounds (except as noted for dioxin)

Chemical / Chemical
Category
Air Water Land Off-Site
Disposal
Total
Hydrochloric Acid (aerosol) 728,000 0 0 0 728,000
Hydrogen Fluoride 209,000 0 0 0 209,000
Sulfuric Acid (aerosol) 3,374,310 0 0 0 3,374,310
Ammonia 1,111,403 4,048 0 0 1,115,451
Arsenic Compounds 518 1,370 71,040 44 72,972
Barium Compounds 6,921 47,600 5,946,000 6,423 6,006,944
Beryllium Compounds 15 0 5,029 0 5,044
Chromium Compounds 998 1,025 163,806 259 166,088
Cobalt Compounds 60 0 10,397 0 10,457
Copper Compounds 1,111 33,602 247,798 9 282,520
Lead Compounds 905 101 141,026 937 142,970
Manganese Compounds 1,896 18,322 468,000 0 488,218
Mercury Compounds 175 12 2,592 13 2,792
Nickel Compounds 876 4,011 128,326 7 133,220
Thallium Compounds 46 0 43,700 0 43,746
Vanadium Compounds 1,425 13,497 432,140 0 447,062
Zinc Compounds 11,021 19,192 409,200 1 439,414
Benzo(g,h,i)perylene 1 0 1 0 2
Naphthalene 123 0 0 0 123
Nitrate Compounds 0 284,000 0 0 284,000
Dioxin (grams) 8 0 0 0 8
Polycyclic Aromatic Compounds 31 0 40 0 71
Hydrazine 0 0 0 0 0
Total 5,448,835 426,780 8,069,095 7,693 13,952,404

Total Gross MWh Generated:    141,891,430
Pounds Released per MWh: 0.098