/-90.0830195,32.4238226,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Ross Barnett Reservoir: Madison Landing
Ridgeland, Mississippi, United States
Waterbody Type:Lake
Last observed: March 30, 2025 Monitored since: February 27, 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?
7,912 locations
+51 new sample locations added in the past 30 days
Lake
Last observed: March 30, 2025 Monitored since: February 27, 2025
/-88.1824708,41.5381691,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
DuPage River: DuPage River at Hammel Woods
Shorewood, Illinois, United States
Waterbody Type:River
Last observed: March 30, 2025 Monitored since: November 28, 2024
/-88.1636953,41.7189717,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Spring Brook Creek: Spring Brook Creek near Leverenz Rd. and Gateshead Dr.
Naperville, Illinois, United States
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: November 24, 2024
/-79.5009971,43.8486841,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Golden Forest Pond: Golden Forest Pond
Vaughan, Ontario, Canada
Waterbody Type:Pond
Last observed: March 30, 2025 Monitored since: March 30, 2025
/-82.59,42.0232998,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Erie: Lake Erie north shore
Leamington, Ontario, Canada
Waterbody Type:Lake
Last observed: March 30, 2025 Monitored since: May 30, 2021
/-88.0688737,41.8017268,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Saint Joseph Creek: Saint Joseph Creek
Lisle, Illinois, United States
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: December 2, 2023
/-2.1491146,51.9797524,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dipping Pond: South Dipping Pond
Cheltenham, Gloucestershire, United Kingdom
Waterbody Type:Pond
Last observed: March 30, 2025 Monitored since: March 30, 2025
/-81.9335246,42.2953704,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Willow creek drain s into Rondeau Bay Shrewsbury Ont Can: Willow Creek
Chatham Kent, Ontario, Canada
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: May 28, 2023
/-1.4915618,53.8365397,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Roundhay Park : Waterloo Lake: Waterloo Lake East
Leeds, Leeds, United Kingdom
Waterbody Type:Lake
Last observed: March 30, 2025 Monitored since: January 24, 2025
/-1.4922095,53.8400068,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Roundhay Park : Waterloo Lake: Waterloo Lake: NW Corner
Leeds, Leeds, United Kingdom
Waterbody Type:Lake
Last observed: March 30, 2025 Monitored since: January 24, 2025
/-79.3714142,43.184864,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Ontario: Grande Hermine Ship Beach
Jordan Station, Ontario, Canada
Waterbody Type:Lake
Last observed: March 30, 2025 Monitored since: October 29, 2024
/-81.6993141,42.4523876,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Creek ? to right of Clearville boat ramp Lake Erie( directly behind pavillion in the centre walk straight to tree at creek): Clear Creek
Ontario, Canada
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: May 28, 2023
/-79.3744826,43.1519465,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Twenty Mile Creek: Twenty Mile Creek at Twenty-First Street
Jordan, Ontario, Canada
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: October 29, 2024
/-81.6246712,42.5054375,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Port Glascow (creek just down hill to right of marina on Grey line: 16 mile creek
Ontario, Canada
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: May 28, 2023
/-79.0410733,42.9449259,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Black Creek: Black Creek at Stevensville Pump Station (downstream)
Ontario, Canada
Waterbody Type:Unknown
Last observed: March 30, 2025 Monitored since: February 27, 2025
/-0.5058793,51.3418019,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Rive Ditch: Birchwood Close
Addlestone, Surrey, United Kingdom
Waterbody Type:Stream
Last observed: March 30, 2025 Monitored since: March 30, 2025
/-79.2146015,43.2235664,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Welland Canal: Welland Canal off of Seaway Haulage Rd
St. Catharines, Ontario, Canada
Waterbody Type:Canal
Last observed: March 30, 2025 Monitored since: February 1, 2025
/-79.0155917,42.9551143,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Beaver Creek: Beaver Creek at College Road
Niagara Falls, Ontario, Canada
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: December 29, 2024
/-0.5354487,51.3003806,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Wey: River Wey Old Woking
Woking, Surrey, United Kingdom
Waterbody Type:River
Last observed: March 30, 2025 Monitored since: December 29, 2024
/-79.0350008,42.9558572,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Black Creek: Black Creek bridge at College Road (Upstream)
Ontario, Canada
Waterbody Type:Creek
Last observed: March 30, 2025 Monitored since: October 29, 2024
/-80.2526464,43.5505533,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Speed river: Pedestrian bridge
Guelph, Ontario, Canada
Waterbody Type:River
Last observed: March 30, 2025 Monitored since: January 12, 2025