/-79.3785395,42.9477224,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Big Forks Creek: Big Forks Creek at Victoria Ave
Ontario, Canada
Waterbody Type:Creek
Last observed: May 20, 2025 Monitored since: January 26, 2025
Locations
Locations are places where people have tested before. Click on any location report to view water health trends at that spot over time. What's this?
8,081 locations
+129 new sample locations added in the past 30 days
Creek
Last observed: May 20, 2025 Monitored since: January 26, 2025
/-79.3578388,42.9668889,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Welland River Branch: Welland River Branch
Ontario, Canada
Waterbody Type:Creek
Last observed: May 20, 2025 Monitored since: December 28, 2024
/0.0866675,51.497421,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Gallions Lake : Gallions Lake
London, Greenwich, United Kingdom
Waterbody Type:Lake
Last observed: May 20, 2025 Monitored since: April 25, 2024
/0.0856161,51.497496,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Gallions Lake 1: Gallions Lake 1
London, Greenwich, United Kingdom
Waterbody Type:Lake
Last observed: May 20, 2025 Monitored since: January 25, 2023
/-88.4489322,41.7890885,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Blackberry Creek at Hannaford Woods FP: Blackberry Creek Hannaford Woods FP
Sugar Grove, Illinois, United States
Waterbody Type:Creek
Last observed: May 20, 2025 Monitored since: December 22, 2024
/-88.420136,40.1868745,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Sangamon River: River Bend Forest Preserve site
Mahomet, Illinois, United States
Waterbody Type:River
Last observed: May 19, 2025 Monitored since: November 7, 2021
/-84.4441581,46.5097352,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Little Carp River: Little Carp River Carpin Beach Rd
Ontario, Canada
Waterbody Type:River
Last observed: May 19, 2025 Monitored since: March 1, 2024
/-88.1296093,41.9101401,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Kline Creek: Thunderbird Trail Crossing of Kline Creek
Carol Stream, Illinois, United States
Waterbody Type:Creek
Last observed: May 19, 2025 Monitored since: November 30, 2023
/-88.1209617,41.931081,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Kline Creek: Lies Road Crossing of Kline Creek
Carol Stream, Illinois, United States
Waterbody Type:Creek
Last observed: May 19, 2025 Monitored since: November 30, 2023
/-88.3566856,41.9960196,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Otter Creek: Otter Creek
Elgin, Illinois, United States
Waterbody Type:Creek
Last observed: May 19, 2025 Monitored since: November 18, 2024
/-88.763596,41.932551,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Inflow to East Lagoon: Inflow to East Lagoon at Montgomery to Faraday pedestrian bridge
Dekalb, Illinois, United States
Waterbody Type:Unknown
Last observed: May 19, 2025 Monitored since: December 12, 2023
/-88.7606263,41.9339037,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
South Branch Kishwaukee River: South Branch Kishwaukee River at College Ave.
Dekalb, Illinois, United States
Waterbody Type:River
Last observed: May 19, 2025 Monitored since: December 12, 2023
/-1.0533357,51.2716943,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Loddon: Bartons Mill
Basingstoke, Hampshire, United Kingdom
Waterbody Type:River
Last observed: May 19, 2025 Monitored since: January 15, 2025
/-87.9850488,41.7805444,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Joseph's Creek: St. Joseph's Creek @ 59th & Williams Street
Downers Grove, Illinois, United States
Waterbody Type:Creek
Last observed: May 19, 2025 Monitored since: December 21, 2023
/-88.0516199,41.8296568,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Round Meadow Lake in Hidden Lake Forest Preserve in DuPage County, IL: Round Meadow Lake
Glen Ellyn, Illinois, United States
Waterbody Type:Lake
Last observed: May 19, 2025 Monitored since: December 14, 2023
/-88.2501007,42.2381973,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Killarney to Silver Lake Creek (Cary, IL, 60013): Lake Killarney to Silver Lake Creek (Cary, IL, 60013)
Cary, Illinois, United States
Waterbody Type:Creek
Last observed: May 18, 2025 Monitored since: November 20, 2024
/-84.5309114,48.2576548,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dip Needle Lake: Dip Needle Lake Narrows @ Train Track Culvert / Minnow Bucket Beach
Ontario, Canada
Waterbody Type:Lake
Last observed: May 18, 2025 Monitored since: May 18, 2025
/-88.2551875,42.2364979,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Killarney outlet dam (Cary, IL, 60013): Lake Killarney outlet dam (Cary, IL, 60013)
Cary, Illinois, United States
Waterbody Type:Lake
Last observed: May 18, 2025 Monitored since: November 20, 2024
/-88.1348562,41.754183,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
DuPage River, West Branch: DuPage River, West Branch
Naperville, Illinois, United States
Waterbody Type:River
Last observed: May 18, 2025 Monitored since: November 24, 2024
/-84.5265985,48.2683518,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
McVeigh Creek: McVeigh Creek Before merging with Wyndsor Creek
Ontario, Canada
Waterbody Type:Creek
Last observed: May 18, 2025 Monitored since: May 18, 2025
/-84.5268345,48.2677514,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Wyndsor Creek: Wyndsor Creek Before merging with McVeigh Creek
Ontario, Canada
Waterbody Type:Creek
Last observed: May 18, 2025 Monitored since: May 18, 2025