EPA · discharge permits by watershed
Subbasins in region 18
- 79Subbasins
Every subbasin in watershed region 18 carrying at least three current Clean Water Act discharge permits, in the order the national Watershed Boundary Dataset numbers them. Each opens that subbasin’s own page, which lists the permits whose outfall EPA places in it and the watersheds inside it. The whole set is on every subbasin, by region.
- Subbasin 18010101 14
- Subbasin 18010102 22
- Subbasin 18010105 6
- Subbasin 18010108 6
- Subbasin 18010110 73
- Subbasin 18010204 25
- Subbasin 18010207 13
- Subbasin 18010209 5
- Subbasin 18020001 4
- Subbasin 18020003 6
- Subbasin 18020005 5
- Subbasin 18020104 10
- Subbasin 18020111 32
- Subbasin 18020116 13
- Subbasin 18020121 3
- Subbasin 18020123 4
- Subbasin 18020125 9
- Subbasin 18020126 12
- Subbasin 18020129 7
- Subbasin 18020154 8
- Subbasin 18020155 3
- Subbasin 18020156 6
- Subbasin 18020158 13
- Subbasin 18020159 21
- Subbasin 18020161 16
- Subbasin 18020162 3
- Subbasin 18020163 69
- Subbasin 18030003 10
- Subbasin 18030004 3
- Subbasin 18030005 10
- Subbasin 18030006 23
- Subbasin 18030007 37
- Subbasin 18030009 47
- Subbasin 18030012 31
- Subbasin 18040001 40
- Subbasin 18040002 22
- Subbasin 18040003 55
- Subbasin 18040006 9
- Subbasin 18040007 5
- Subbasin 18040009 27
- Subbasin 18040010 29
- Subbasin 18040012 18
- Subbasin 18040013 15
- Subbasin 18040051 16
- Subbasin 18050001 28
- Subbasin 18050002 95
- Subbasin 18050003 67
- Subbasin 18050004 115
- Subbasin 18050006 10
- Subbasin 18060002 21
- Subbasin 18060004 4
- Subbasin 18060005 56
- Subbasin 18060006 21
- Subbasin 18060008 7
- Subbasin 18060010 15
- Subbasin 18060013 14
- Subbasin 18060015 19
- Subbasin 18070101 4
- Subbasin 18070102 43
- Subbasin 18070103 59
- Subbasin 18070104 117
- Subbasin 18070105 193
- Subbasin 18070106 241
- Subbasin 18070107 4
- Subbasin 18070201 26
- Subbasin 18070202 34
- Subbasin 18070203 227
- Subbasin 18070204 24
- Subbasin 18070301 30
- Subbasin 18070302 30
- Subbasin 18070303 79
- Subbasin 18070304 117
- Subbasin 18080003 6
- Subbasin 18090102 6
- Subbasin 18090206 5
- Subbasin 18090208 27
- Subbasin 18100100 3
- Subbasin 18100201 46
- Subbasin 18100204 38