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| Data Type | Begin Date | End Date | Count |
|---|---|---|---|
| Current / Historical Observations (availability statement) | 2012-10-16 | 2026-01-23 | |
| Daily Data | |||
| Temperature, water, degrees Celsius | 2012-10-16 | 2025-04-14 | 13247 |
| Temperature, water, degrees Celsius | 2025-04-16 | 2026-01-22 | 789 |
| Gage height, feet | 2013-07-18 | 2026-01-22 | 4476 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2013-06-26 | 2025-04-14 | 10467 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2025-04-16 | 2026-01-22 | 729 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2013-06-27 | 2025-04-14 | 10959 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2025-04-16 | 2026-01-22 | 524 |
| pH, water, unfiltered, field, standard units | 2013-06-26 | 2025-04-14 | 9727 |
| pH, water, unfiltered, field, standard units | 2025-04-16 | 2026-01-22 | 777 |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2023-01-24 | 2025-04-14 | 2373 |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2025-04-16 | 2026-01-22 | 768 |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2013-06-26 | 2025-04-14 | 10509 |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2025-04-16 | 2026-01-22 | 768 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2013-06-26 | 2025-04-14 | 10530 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2025-04-16 | 2026-01-22 | 780 |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2013-07-18 | 2025-04-14 | 7165 |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2025-04-16 | 2026-01-22 | 720 |
| Daily Statistics | |||
| Temperature, water, degrees Celsius | 2012-10-16 | 2025-04-14 | 4411 |
| Temperature, water, degrees Celsius | 2025-04-16 | 2025-11-18 | 212 |
| Gage height, feet | 2013-07-18 | 2025-11-18 | 4416 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2013-06-27 | 2025-04-14 | 3553 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2025-04-16 | 2025-11-18 | 192 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2013-06-27 | 2025-04-14 | 3647 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2025-04-16 | 2025-11-18 | 212 |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2024-09-04 | 2025-04-14 | 215 |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2025-04-16 | 2025-11-18 | 206 |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2013-06-27 | 2025-04-14 | 3454 |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2025-04-16 | 2025-11-18 | 206 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2013-06-27 | 2025-04-14 | 3508 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2025-04-16 | 2025-07-22 | 97 |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2013-07-18 | 2025-04-14 | 3578 |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2025-04-16 | 2025-11-18 | 188 |
| Monthly Statistics | |||
| Temperature, water, degrees Celsius | 2012-10 | 2025-04 | |
| Temperature, water, degrees Celsius | 2025-04 | 2025-11 | |
| Gage height, feet | 2013-07 | 2025-11 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2013-06 | 2025-04 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2025-04 | 2025-11 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2013-06 | 2025-04 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2025-04 | 2025-11 | |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2024-09 | 2025-04 | |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2025-04 | 2025-11 | |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2013-06 | 2025-04 | |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2025-04 | 2025-11 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2013-06 | 2025-04 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2025-04 | 2025-07 | |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2013-07 | 2025-04 | |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2025-04 | 2025-11 | |
| Annual Statistics | |||
| Temperature, water, degrees Celsius | 2013 | 2025 | |
| Temperature, water, degrees Celsius | 2025 | 2026 | |
| Gage height, feet | 2013 | 2026 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2013 | 2025 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2025 | 2026 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2013 | 2025 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2025 | 2026 | |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2024 | 2025 | |
| Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll | 2025 | 2026 | |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2013 | 2025 | |
| Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin | 2025 | 2026 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2013 | 2025 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2025 | 2025 | |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2013 | 2025 | |
| Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen | 2025 | 2026 | |
| Field measurements | 2022-06-02 | 2022-06-02 | 1 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 1979-04-25 | 2024-01-31 | 62 |
| Water-Year Summary | 2014 | 2025 | 12 |
| Revisions | Loading... | ||
U.S. Department of the Interior |
U.S. Geological Survey
Title: NWIS Site Information for USA: Site Inventory
URL:
Page Contact Information: Illinois Water Data Support Team
Page Last Modified: 2026-01-23 11:24:42 EST
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