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| Data Type | Begin Date | End Date | Count |
|---|---|---|---|
| Current / Historical Observations (availability statement) | 1988-10-01 | 2025-10-25 | |
| Daily Data | |||
| Temperature, water, degrees Celsius | 1956-10-01 | 2025-10-24 | 41012 |
| Discharge, cubic feet per second | 1921-10-01 | 2025-10-24 | 34874 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 1965-07-01 | 2024-10-15 | 32909 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 1965-07-01 | 2024-10-14 | 31766 |
| pH, water, unfiltered, field, standard units | 1973-02-28 | 2024-10-14 | 27108 |
| Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen | 1989-09-30 | 1993-09-29 | 1461 |
| Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen | 1989-09-30 | 1993-09-29 | 1461 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2011-02-16 | 2021-05-29 | 8463 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2021-06-09 | 2025-08-21 | 3783 |
| Suspended sediment concentration, milligrams per liter | 1950-10-12 | 2002-09-29 | 16483 |
| Suspended sediment discharge, short tons per day | 1950-10-01 | 2002-09-29 | 17101 |
| Daily Statistics | |||
| Temperature, water, degrees Celsius | 1981-06-05 | 2025-07-22 | 8273 |
| Discharge, cubic feet per second | 1921-10-01 | 2025-06-30 | 34759 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 1980-10-08 | 2024-10-14 | 7544 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 1981-06-05 | 2024-10-13 | 7431 |
| Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen | 1989-09-30 | 1993-09-29 | 1461 |
| Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen | 1989-09-30 | 1993-09-29 | 1461 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2011-02-16 | 2021-05-29 | 2821 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2021-06-09 | 2025-07-22 | 1233 |
| Suspended sediment concentration, milligrams per liter | 1950-10-12 | 2002-09-29 | 16483 |
| Suspended sediment discharge, short tons per day | 1950-10-01 | 2002-09-29 | 17101 |
| Monthly Statistics | |||
| Temperature, water, degrees Celsius | 1981-06 | 2025-07 | |
| Discharge, cubic feet per second | 1921-10 | 2025-06 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 1980-10 | 2024-10 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 1981-06 | 2024-10 | |
| Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen | 1989-09 | 1993-09 | |
| Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen | 1989-09 | 1993-09 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2011-02 | 2021-05 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2021-06 | 2025-07 | |
| Suspended sediment concentration, milligrams per liter | 1950-10 | 2002-09 | |
| Suspended sediment discharge, short tons per day | 1950-10 | 2002-09 | |
| Annual Statistics | |||
| Temperature, water, degrees Celsius | 1981 | 2025 | |
| Discharge, cubic feet per second | 1922 | 2025 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 1981 | 2025 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 1981 | 2025 | |
| Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen | 1989 | 1993 | |
| Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen | 1989 | 1993 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2011 | 2021 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2021 | 2025 | |
| Suspended sediment concentration, milligrams per liter | 1951 | 2002 | |
| Suspended sediment discharge, short tons per day | 1951 | 2002 | |
| Peak streamflow | 1922-04-15 | 2024-04-02 | 96 |
| Field measurements | 1927-12-02 | 2025-09-23 | 271 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 1957-01-22 | 2024-02-06 | 6169 |
| Water-Year Summary | 2006 | 2024 | 19 |
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