PERI: Toxic 100 Index

Steel Dynamics

Rank in Toxic 100 Water: 86
Surface Water releases 2014 (lbs): 568
POTW (sewerage plant) transfers 2014 (lbs): 1,485
Pounds released post-treatment 2014 (lbs): 1,114
Total Surface Water and POTW Toxic Hazard 2014: 18,088,406
Percentage of national total 2014 surface water and POTW hazard: 0.007%

Chemicals at facilities displayed below: (display facilities) (display chemicals)
(Click on column headers to re-sort table: current sort is by percent of total company hazard.)
(Links on facility names lead to full TRI reports. Links on cities lead to Mapquest maps. Links on chemical names lead to Scorecard chemical health effects.)

Facility Name	City	State	Chemical	Surface water releases (lbs)	POTW transfers (lbs)	Post-treatment releases (lbs)	Toxic Hazard (quantity x toxicity)	Percent of total company hazard
MESABI NUGGET DELAWARE LLC	AURORA	MN	Chromium and chromium compounds	17	0	17	8,735,000	48.29%
STEEL DYNAMICS INC FLAT ROLL GROUP COLUMBUS DIV	COLUMBUS	MS	Chromium and chromium compounds	9	0	9	4,500,000	24.88%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Chromium and chromium compounds	2	11	5	2,298,000	12.70%
STEEL DYNAMICS INC-ENGINEERED BAR PRODUCTS DIV	PITTSBORO	IN	Chromium and chromium compounds	2	1	2	1,118,000	6.18%
SWVA INC	HUNTINGTON	WV	Lead and lead compounds	0	150	55	986,040	5.45%
STEEL DYNAMICS INC ROANOKE BAR DIV	ROANOKE	VA	Lead and lead compounds	7	0	7	126,000	0.70%
SUPERIOR ALUMINUM ALLOYS LLC	NEW HAVEN	IN	Lead and lead compounds	5	0	5	89,820	0.50%
STEEL DYNAMICS INC-ENGINEERED BAR PRODUCTS DIV	PITTSBORO	IN	Lead and lead compounds	4	0	4	72,000	0.40%
MESABI NUGGET DELAWARE LLC	AURORA	MN	Lead and lead compounds	2	0	2	31,500	0.17%
STEEL DYNAMICS INC STRUCTURA L & RAIL DIV	COLUMBIA CITY	IN	Lead and lead compounds	0	4	1	26,294	0.15%
STEEL DYNAMICS INC STRUCTURA L & RAIL DIV	COLUMBIA CITY	IN	Copper and copper compounds	0	63	17	26,016	0.14%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Copper and copper compounds	4	30	12	18,388	0.10%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Lead and lead compounds	1	1	1	17,608	0.10%
SWVA INC	HUNTINGTON	WV	Nickel and nickel compounds	0	150	93	8,425	0.05%
STEEL DYNAMICS INC FLAT ROLL GROUP COLUMBUS DIV	COLUMBUS	MS	Lead and lead compounds	0	0	0	7,200	0.04%
STEEL DYNAMICS INC FLAT ROLL GROUP COLUMBUS DIV	COLUMBUS	MS	Nickel and nickel compounds	68	0	68	6,188	0.03%
SWVA INC	HUNTINGTON	WV	Mercury and mercury compounds	0	2	1	5,280	0.03%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	1,2,4-Trimethylbenzene	2	0	2	4,000	0.02%
STEEL DYNAMICS INC-ENGINEERED BAR PRODUCTS DIV	PITTSBORO	IN	Copper and copper compounds	2	1	2	3,413	0.02%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Ethylbenzene	2	0	2	2,200	0.01%
SUPERIOR ALUMINUM ALLOYS LLC	NEW HAVEN	IN	Copper and copper compounds	1	0	1	1,920	0.01%
SWVA INC	HUNTINGTON	WV	Zinc and zinc compounds	0	821	278	917	0.01%
STEEL DYNAMICS INC ROANOKE BAR DIV	ROANOKE	VA	Nickel and nickel compounds	8	0	8	728	0.00%
STEEL DYNAMICS INC FLAT ROLL GROUP COLUMBUS DIV	COLUMBUS	MS	Zinc and zinc compounds	181	0	181	597	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Mercury and mercury compounds	0	0	0	400	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Manganese and manganese compounds	52	0	52	369	0.00%
STEEL DYNAMICS INC ROANOKE BAR DIV	ROANOKE	VA	Zinc and zinc compounds	101	0	101	333	0.00%
STEEL DYNAMICS INC-ENGINEERED BAR PRODUCTS DIV	PITTSBORO	IN	Manganese and manganese compounds	35	17	45	322	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Nickel and nickel compounds	3	0	3	273	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Methyl isobutyl ketone	19	0	19	247	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Naphthalene	4	0	4	200	0.00%
STEEL DYNAMICS INC-ENGINEERED BAR PRODUCTS DIV	PITTSBORO	IN	Zinc and zinc compounds	18	47	34	112	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Zinc and zinc compounds	0	99	34	111	0.00%
STEEL DYNAMICS INC STRUCTURA L & RAIL DIV	COLUMBIA CITY	IN	Zinc and zinc compounds	0	88	30	98	0.00%
STEEL DYNAMICS INC STRUCTURA L & RAIL DIV	COLUMBIA CITY	IN	Mercury and mercury compounds	0	0	0	94	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	n-Butyl alcohol	8	0	8	80	0.00%
SDI LAFARGA LLC	NEW HAVEN	IN	Lead and lead compounds	0	0	0	66	0.00%
SUPERIOR ALUMINUM ALLOYS LLC	NEW HAVEN	IN	Nickel and nickel compounds	1	0	1	50	0.00%
SDI LAFARGA LLC	NEW HAVEN	IN	Copper and copper compounds	0	0	0	41	0.00%
NEW MILLENNIUM BUILDING SYSTEMS LLC	BUTLER	IN	Manganese and manganese compounds	5	0	5	35	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Toluene	2	0	2	26	0.00%
STEEL DYNAMICS INC-FLAT ROLL DIV	BUTLER	IN	Xylene (mixed isomers)	2	0	2	10	0.00%
SUPERIOR ALUMINUM ALLOYS LLC	NEW HAVEN	IN	Zinc and zinc compounds	1	0	1	2	0.00%

Toxic hazard: Pounds of direct releases to surface water and estimated releases from transfers to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2014, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project. For details, see technical notes.

Quantity of toxic surface water releases and POTW transfers: Pounds of toxic chemicals released directly to surface water at each TRI facility or transferred off-site to a POTW, without weighting for toxicity or population.

Quantity of toxic post-treatment releases: Pounds of toxic chemicals released directly to surface water plus released after treatment at POTW's.

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