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Legend (MDE_WSA/Final_TMDL_IR_MAP_2024)

IR - Water Contact Recreation Bacteria Point Source (2)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Bacteria- Streams (3)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Bacteria- Impoundments (4)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Water Contact Recreation Bacteria- Tidal Water (5)
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Shellfish Harvesting Bacteria- Tidal Water (6)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
TMDL- Ecoli - Streams (8)
TMDL - Enterococci - Tidal Water (9)
TMDL - Enterococci- Streams (10)
TMDL - Fecal Coliform Shellfish Harvesting - Tidal Water (11)
Mainstem Mainstem
Tributary Tributary
IR - Biological - Streams (14)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Biological - Tidal Water (15)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Chlorides - Streams (18)
5s-Impaired, Chloride From Road Salt 5s-Impaired, Chloride From Road Salt
IR - Sulfates - Streams (19)
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Aluminum - Streams (23)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
TMDL - Aluminum - Streams (25)
IR - Arsenic - Streams (28)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Arsenic - Impoundments (29)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Arsenic - Tidal Water (30)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Cadmium - Streams (33)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Cadmium - Impoundments (34)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Cadmium - Tidal Water (35)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Chromium - Streams (38)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Chromium - Impoundments (39)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Chromium - Tidal Water (40)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Copper Point Sources - Tidal Water (43)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4b-Impaired, Technology Solution Initiated 4b-Impaired, Technology Solution Initiated
IR - Copper - Streams (44)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Copper - Impoundments (45)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Copper - Tidal Water (46)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Iron - Streams (49)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
TMDL - Iron - Streams (51)
IR - Lead - Streams (54)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Lead - Impoundment (55)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Lead - Tidal Water (56)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Manganese - Streams (59)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Mercury - Streams (62)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
IR - Mercury - Impoundments (63)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Mercury - Tidal Water (64)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
TMDL - Mercury - Impoundments (66)
IR - Nickel Point Sources - Tidal Water (69)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Nickel - Streams (70)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Nickel - Impoundments (71)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Nickel - Tidal Water (72)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Silver - Streams (75)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Silver - Tidal Water (76)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Zinc - Streams (79)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Zinc - Impoundments (80)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Zinc - Tidal Water (81)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - BOD - Streams (85)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - BOD - Tidal Water (86)
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Chlorophylla- Impoundments (88)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
TMDL - BOD - Tidal Water (90)
TMDL - BOD - Streams (91)
IR - Nitrogen - Streams (94)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Nitrogen - Impoundment (95)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Nitrogen - Tidal Water (96)
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
TMDL - Nitrogen - Tidal Water (98)
TMDL - Nitrogen - Streams (99)
IR - Phosphorus - Streams (102)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Phosphorus - Impoundments (103)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Phosphorus _ Tidal Water (104)
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
TMDL - Phosphorus - Tidal Water (106)
TMDL - Phosphorus - Streams (107)
TMDL - Phosphorus - Impoundments (108)
IR - Benzo(a)pyrene - Streams (111)
3-Insufficient Information 3-Insufficient Information
IR - PCBs - Streams (114)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - PCBs - Impoundments (115)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - PCBs - Tidal Water (116)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
TMDL - PCBs - Tidal Water (118)
TMDL - PCBs - Streams (119)
TMDL - PCBs - Impoundments (120)
IR - Chlordane - Streams (124)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Chlordane - Impoundments (125)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Chlordane - Tidal Water (126)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
TMDL - Chlordane - Tidal Water (128)
TMDL - Chlordane - Impoundments (129)
IR - Chlorpyrifos - Tidal Water (132)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Hepachlor Epoxide - Streams (135)
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Hepachlor Epoxide - Tidal Water (136)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - PFOS in Fish Tissue - Streams (139)
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - PFOS in Fish Tissue - Tidal Water (140)
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - pH Low - Streams (143)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
4b-Impaired, Technology Solution Initiated 4b-Impaired, Technology Solution Initiated
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - pH High - Streams (144)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
TMDL - pH - Streams (146)
IR - Sediments - Streams (149)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Sediments - Impoundments (150)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Sediments - Tidal Water (151)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
TMDL - Sediments - Tidal Water (153)
TMDL - Sediments - Streams (154)
TMDL - Sediments - Impoundments (155)
IR - Habitat Alterations - Streams (158)
4c-Impaired, Non Conventional Pollutant 4c-Impaired, Non Conventional Pollutant
IR - Lack of Riparian Buffer - Streams (159)
4c-Impaired, Non Conventional Pollutant 4c-Impaired, Non Conventional Pollutant
IR - Flow Alteration - Tidal Water (160)
4c-Impaired, Non Conventional Pollutant 4c-Impaired, Non Conventional Pollutant
IR - Flow Alteration - Tidal Water (161)
4c-Impaired, Non Conventional Pollutant 4c-Impaired, Non Conventional Pollutant
IR - Temperature - Streams (164)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
3-Insufficient Information 3-Insufficient Information
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Ammonia - Streams (169)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Cyanide Point Sources - Tidal Water (172)
4b-Impaired, Technology Solution Initiated 4b-Impaired, Technology Solution Initiated
IR - Cyanide - Streams (173)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Oil Spill - Tidal Water (176)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
4b-Impaired, Technology Solution Initiated 4b-Impaired, Technology Solution Initiated
IR - Selenium - Streams (179)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Selenium - Impoundments (180)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Selenium - Tidal Water (181)
2-Meets Water Quality Criterion 2-Meets Water Quality Criterion
IR - Toxicity - Tidal Water (184)
5-Impaired, TMDL Needed 5-Impaired, TMDL Needed
IR - Trash - Streams (187)
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Patapsco Trash - Tidal Water (188)
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Contact Recreation Trash - Tidal Water (189)
4a-Impaired, TMDL Complete 4a-Impaired, TMDL Complete
IR - Floating Debris - Impoundments (190)
3-Insufficient Information 3-Insufficient Information
TMDL - Trash - Tidal Water (192)
TMDL - Trash - Streams (193)