/-87.7223754,41.9742517,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
North Branch Chicago River at Eugene Field Park Footbridge: Eugene Field Park
Chicago, Illinois, United States
Waterbody Type:River
Last observed: April 6, 2025 Monitored since: December 15, 2024
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?
8,174 locations
+103 new sample locations added in the past 30 days
River
Last observed: April 6, 2025 Monitored since: December 15, 2024
/-88.1366587,41.8489379,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Spring Brook Creek: Spring Brook Creek
Wheaton, Illinois, United States
Waterbody Type:Creek
Last observed: April 6, 2025 Monitored since: December 8, 2024
/-76.9893765,43.9348812,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Ontario: Little Bluff Conservation Area
Ontario, Canada
Waterbody Type:Lake
Last observed: April 6, 2025 Monitored since: April 16, 2017
/-90.0390315,38.5438155,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Gartside Creek: Gartside Creek at Queen of Peace
Belleville, Illinois, United States
Waterbody Type:Creek
Last observed: April 5, 2025 Monitored since: October 21, 2023
/-0.0815779,51.6267717,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Moore Brook : Firs Farm Wetlands - Outlet
London, Enfield, United Kingdom
Waterbody Type:Wetland
Last observed: April 5, 2025 Monitored since: April 5, 2025
/-1.5415192,52.2883226,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Leam: River Leam North Bank RLSCC
Leamington, Warwickshire, United Kingdom
Waterbody Type:River
Last observed: April 5, 2025 Monitored since: July 16, 2024
/-89.990859,38.507831,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Richland Creek: Richland Creek @ South Side City Park
Belleville, Illinois, United States
Waterbody Type:Creek
Last observed: April 3, 2025 Monitored since: February 9, 2023
/-77.4806934,44.1336506,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Bayside Quarry east Pond: Bayside Quarry east Pond
Rednersville, Ontario, Canada
Waterbody Type:Pond
Last observed: April 3, 2025 Monitored since: April 6, 2022
/-87.7017242,41.9731813,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Chicago River: River Park Boathouse
Chicago, Illinois, United States
Waterbody Type:River
Last observed: April 3, 2025 Monitored since: January 2, 2023
/-0.2526081,51.61226,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Burnt Oak Brook: Lyndhurst Park (downstream of culvert)
London, Barnet, United Kingdom
Waterbody Type:Stream
Last observed: April 3, 2025 Monitored since: February 2, 2024
/-0.2456304,51.61792,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Burnt Oak Brook: Simmonds Mead Open Space
London, Barnet, United Kingdom
Waterbody Type:Stream
Last observed: April 3, 2025 Monitored since: February 1, 2024
/-88.3524156,41.9285702,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pond at Creek Bend Nature Center: Creek Bend Pond
Saint Charles, Illinois, United States
Waterbody Type:Pond
Last observed: April 3, 2025 Monitored since: November 7, 2023
/-90.0271654,38.5483945,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Schoenberger Creek: Schoenberger Creek at West Belleville Bikeway
Belleville, Illinois, United States
Waterbody Type:Creek
Last observed: April 1, 2025 Monitored since: October 23, 2023
/-0.2980042,51.4051626,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Hogsmill: Saipem S2- Middle Mill
London, Kingston upon Thames, United Kingdom
Waterbody Type:River
Last observed: April 1, 2025 Monitored since: April 1, 2025
/-87.8785638,42.0633214,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Oakton : Oakton College
Des Plaines, Illinois, United States
Waterbody Type:Pond
Last observed: March 31, 2025 Monitored since: January 29, 2025
/-89.6251559,40.7682243,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Big Hollow Creek: Big Hollow Creek in Iris Park
Peoria, Illinois, United States
Waterbody Type:Creek
Last observed: March 31, 2025 Monitored since: December 23, 2023
/-0.5641619,51.3449039,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Bourne: Fairoaks Airport
Woking, Surrey, United Kingdom
Waterbody Type:River
Last observed: March 31, 2025 Monitored since: March 31, 2025
/-89.6531582,40.7106053,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Kickapoo Creek: Kickapoo Creek at Vicary Bottom Park
Peoria, Illinois, United States
Waterbody Type:Stream
Last observed: March 31, 2025 Monitored since: December 23, 2023
/-88.8004189,41.3682899,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Fox River: Dayton Bluffs Preserve
Ottawa, Illinois, United States
Waterbody Type:River
Last observed: March 31, 2025 Monitored since: December 7, 2024
/-0.5640676,51.3456347,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Ditch running into River Bourne: Ditch at Fairoaks Airport
Woking, Surrey, United Kingdom
Waterbody Type:River
Last observed: March 31, 2025 Monitored since: March 31, 2025
/-2.1485827,51.9801417,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Swilgate: Tewkesbury Nature Reserve: Southern Foot Bridge
Cheltenham, Gloucestershire, United Kingdom
Waterbody Type:River
Last observed: March 31, 2025 Monitored since: November 2, 2022