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Surface Water Ambient Toxics Monitoring Program (SWAT)

Contact: Questions may be directed to authors of each study or to Tom Danielson, 207-441-7430

Maine’s Surface Water Ambient Toxics (SWAT) monitoring program was established in 1993. Its goal is to determine the nature, scope, and severity of toxic contamination in the surface waters and fisheries of the State. SWAT monitors tissue, sediment, and the water column in all waters of the State. This includes monitoring the health of organisms that may indicate toxic conditions. The program collects data to understand the risks to human and environmental health posed by these toxic contaminants.

SWAT data are available through EGAD.

Surface Water Ambient Toxics (SWAT) Monitoring Program Report

2021-2022 SWAT Report (PDF)

Waterbody	Town	Station
Scarey Brook	Nashville Plt	1162
Birch Brook	Presque Isle	1019
Cowett Brook	Presque Isle	1021
Unnamed Brook	Presque Isle	1027
Hockenhull Brook	Fort Fairfield	1026
North Fork Mclean Brook	St. Agatha	922
Getchell Brook	Easton	925
Rocky Brook	Mars Hill	375
Frost Brook	Westfield	1022
Williams Brook	Presque Isle	1031
Oliver Brook	Hodgdon	1005
Pearce Brook	Houlton	463
Smith Brook	Houlton	1007
Salmon Brook	Washburn	377
Gray Brook	Fort Fairfield	1023
Kennedy Brook	Presque Isle	646
Dickey Brook	Cross Lake Twp	688
Salmon Brook	Perham	376
Big Brook	Madawaska	728
Unnamed Brook	Madawaska	1030
North Branch Meduxnekeag River	TC R02 Wels	780
Moose Brook	Houlton	466
Mill Brook	Ludlow	1164
Hacker Brook	Fort Fairfield	1024
Coloney Brook	Fort Fairfield	733
Otter Brook	Caribou	1035
Amsden Brook	Fort Fairfield	1018
West Branch Sheepscot River	China	268
Sheepscot River	Whitefield	74
East Branch Wesserunsett Stream	Athens	486
Hall Brook	Thorndike	1147
Halfmoon Stream	Thorndike	697
Creamer Brook	T19 ED BPP	1115
Beaverdam Stream	Wesley	1149
Seboeis River	T06 R07 Wels	737
Concord Gully	Freeport	498
Concord Gully	Freeport	497
Chenery Brook	Falmouth	1169
Mill Creek	Falmouth	1167
Goosefare Brook	Saco	48
Great Works River	North Berwick	439
Goosefare Brook	Saco	271
Red Brook	Scarborough	219
Mousam River	Sanford	391
Mousam River	Sanford	390
Red Brook	South Portland	412
Capisic Brook	Portland	257
Capisic Brook	Portland	1039
Mare Brook	Brunswick	457
Mare Brook	Brunswick	1064
Mare Brook	Brunswick	330
Mount Blue Stream	Avon	1182
Piscataqua River	Cumberland	758
Piscataqua River	Falmouth	759
Trout Brook	South Portland	675
Trout Brook	Cape Elizabeth	1040
Phillips Brook	Scarborough	953
Mile Brook	Casco	998
Pleasant River	Gray	394
Sheepscot River	Whitefield	74
West Branch Sheepscot River	China	268
South Branch Sandy River	Phillips	600
Merriland River	Wells	437
Nason's Brook	Portland	638
Blood Brook	Katahdin Iron Works Twp	666
West Branch Pleasant River	Katahdin Iron Works Twp	286
West Branch Pleasant River	Katahdin Iron Works Twp	686
Mousam River	Sanford	259
Mousam River	Sanford	388
Bull Branch Sunday River	Riley Twp	659
Wild River	Batchelders Grant Twp	674
Card Brook	Ellsworth	815
Narramissic River	Orland	1094
Black Brook	Windham	1181
Pleasant River	Windham	155
Pleasant River	Windham	548
Thacher Brook	Biddeford	451
West Brook	Biddeford	797
Kennebunk River	Kennebunk	270
Tannery Brook	Gorham	474
Salmon Falls River	Berwick	52
East Branch Wesserunsett Stream	Athens	486