/-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
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
+101 new sample locations added in the past 30 days
River
Last observed: May 19, 2025 Monitored since: November 7, 2021
/-79.4732094,44.01504,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Tannery Creek: St. Andrews on the Hill (SAC)
Aurora, Ontario, Canada
Waterbody Type:Creek
Last observed: May 19, 2025 Monitored since: September 29, 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
/-88.7606263,41.9339037,16,0,0/380x220@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
/-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
/-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
/-106.8061207,51.881657,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Channel feeds into the lake: Culvert at south end of lake
Saskatchewan, Canada
Waterbody Type:Unknown
Last observed: May 19, 2025 Monitored since: July 18, 2023
/-106.8187594,51.9020401,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pike Lake: Boat Launch
Saskatchewan, Canada
Waterbody Type:Unknown
Last observed: May 19, 2025 Monitored since: September 27, 2024
/-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
/-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
/-88.1348562,41.754183,16,0,0/380x220@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
/-88.0765557,41.9688079,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Spring Brook Creek: Spring Brook Creek - N of Meacham Grove FP
Roselle, Illinois, United States
Waterbody Type:Creek
Last observed: May 18, 2025 Monitored since: November 16, 2023
/-84.5301819,48.2661808,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Summit Lake Headwaters (McVeigh Creek & Windsor Creek): Summit Lake Intake
Ontario, Canada
Waterbody Type:Creek
Last observed: May 18, 2025 Monitored since: May 18, 2025
/-84.5028663,48.2651088,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Wyndsor Lake/Nicho Lake CREEK : Wyndsor Lake Creek - Beaver Dam
Ontario, Canada
Waterbody Type:Creek
Last observed: May 18, 2025 Monitored since: May 18, 2025
/-88.1751965,41.781825,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
West Branch Du Page River: West Branch Du Page River
Naperville, Illinois, United States
Waterbody Type:River
Last observed: May 18, 2025 Monitored since: November 13, 2024
/-84.4973516,48.2669092,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Nicho Lake: Nicho
Ontario, Canada
Waterbody Type:Lake
Last observed: May 18, 2025 Monitored since: May 18, 2025
/-84.5478201,48.3307204,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Smithy Lake: Smithy Lake Boat Launch(Northwest Shore) - Magino Mine Reference Lake
Ontario, Canada
Waterbody Type:Lake
Last observed: May 18, 2025 Monitored since: November 5, 2024