Facility detail

PATRIOT MINING COMPANY INC GUSTON RUN SOUTH

STATE RT 7 NEAR CASSVILLE WV, CASSVILLE, WV, 26527

Parent company: ARCH COAL INC.

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds, grouped by reporting year.

The 10 chemicals with the highest cumulative on-site releases across all available years.

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

Year	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	Manganese compounds	Zinc compounds	Lead compounds	Vanadium compounds	Total
2012	144,667	51,094	14,422	3,584	25,570	257,315
2011	197,882	69,890	19,727	4,902	34,976	363,460
2010	179,161	63,278	17,861	4,438	31,667	329,074
2009	195,749	69,136	19,515	4,849	34,599	359,542
2008	134,504	97,265	118,385	78,368	55,096	602,281
2007	124,882	90,307	109,917	72,762	51,155	559,197
2006	137,705	99,580	121,203	80,233	56,408	616,616
2005	78,892	57,050	69,438	45,966	32,316	353,263
2004	143,725	103,933	126,502	83,740	58,874	643,573
2003	116,134	83,981	102,217	67,665	47,572	520,527
2002	—	—	—	—	—	353,456