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Table 21.1--Total river miles impaired by silviculture in the South (1988-1998)

Impaired river milesa
State	1988	1990	1992	1994	1996	1998	Average 1988-1998b
Alabama	0	196	218	195	219	0	138
Arkansas	0	261	193	251	218	0	154
Florida	63	142	154	1,181	1,410	428	563
Georgia	0	--	--	--	3	0	1
Kentucky	--	--	34	120	103	56	78
Louisiana	--	1,339	1,167	758	1,328	326	984
Mississippi	0	405	2,051	408	2,310	2,121	1,216
North Carolina	48	--	313	276	243	151	206
Oklahoma	20	--	126	126	110	218	120
South Carolina	4	--	--	326	221	221	193
Tennessee	140	142	--	74	524	61	188
Texas	--	--	--	--	--	0	0
Virginia	0	--	--	166	658	11	209
Total	275	2,485	4,256	3,881	7,347	3,593	3,639

^a A river mile includes all river and stream miles reported by each State. An impaired river mile is classified as partially supporting overall use or not supporting overall use.

^b Average impaired miles from 1988 to 1998 is defined as the total of impaired miles for the years that data was reported divided by the number of years for which data was reported.

-- Not reported

Source: U.S. Environmental Protection Agency 1990, 1992, 1994, 1996, 1998, 2000a (National Water Quality Inventory Reports to Congress)