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| Data Type | Begin Date | End Date | Count |
|---|---|---|---|
| Current / Historical Observations (availability statement) | 2010-10-01 | 2025-07-21 | |
| Daily Data | |||
| Temperature, water, degrees Celsius | 2006-10-01 | 2025-07-20 | 20343 |
| Temperature, water, degrees Celsius -- Upstream | 2025-07-22 | 2025-08-27 | 111 |
| Discharge, cubic feet per second | 1946-10-01 | 2025-08-27 | 28820 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2006-10-01 | 2025-07-20 | 20268 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Upstream | 2023-01-12 | 2025-08-27 | 564 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2006-10-01 | 2025-07-20 | 20304 |
| Dissolved oxygen, water, unfiltered, milligrams per liter -- Upstream | 2025-07-22 | 2025-08-27 | 111 |
| pH, water, unfiltered, field, standard units | 2006-10-01 | 2025-07-20 | 20256 |
| pH, water, unfiltered, field, standard units -- Upstream | 2025-07-22 | 2025-08-27 | 111 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2006-10-01 | 2017-11-15 | 9797 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2017-11-17 | 2025-07-20 | 5837 |
| Suspended sediment concentration, milligrams per liter | 1946-12-01 | 1980-09-29 | 11625 |
| Suspended sediment discharge, short tons per day | 1946-12-06 | 1980-09-29 | 11621 |
| Daily Statistics | |||
| Temperature, water, degrees Celsius | 2006-10-01 | 2025-04-01 | 6671 |
| Discharge, cubic feet per second | 1946-10-01 | 2025-02-09 | 28622 |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2006-10-01 | 2025-03-27 | 6647 |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2006-10-01 | 2025-03-28 | 6659 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2006-10-01 | 2017-11-15 | 3266 |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2024-09-30 | 2025-04-01 | 172 |
| Suspended sediment concentration, milligrams per liter | 1946-12-01 | 1980-09-29 | 11625 |
| Suspended sediment discharge, short tons per day | 1946-12-06 | 1980-09-29 | 11621 |
| Monthly Statistics | |||
| Temperature, water, degrees Celsius | 2006-10 | 2025-04 | |
| Discharge, cubic feet per second | 1946-10 | 2025-02 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2006-10 | 2025-03 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2006-10 | 2025-03 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2006-10 | 2017-11 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2024-09 | 2025-04 | |
| Suspended sediment concentration, milligrams per liter | 1946-12 | 1980-09 | |
| Suspended sediment discharge, short tons per day | 1946-12 | 1980-09 | |
| Annual Statistics | |||
| Temperature, water, degrees Celsius | 2007 | 2025 | |
| Discharge, cubic feet per second | 1947 | 2025 | |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius | 2007 | 2025 | |
| Dissolved oxygen, water, unfiltered, milligrams per liter | 2007 | 2025 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2007 | 2018 | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) | 2024 | 2025 | |
| Suspended sediment concentration, milligrams per liter | 1947 | 1980 | |
| Suspended sediment discharge, short tons per day | 1947 | 1980 | |
| Peak streamflow | 1947-04-30 | 2024-01-10 | 78 |
| Field measurements | 1946-12-06 | 2025-07-10 | 883 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 1946-09-06 | 2015-12-08 | 479 |
| Water-Year Summary | 2006 | 2024 | 19 |
| Revisions | Loading... | ||
U.S. Department of the Interior |
U.S. Geological Survey
Title: NWIS Site Information for USA: Site Inventory
URL:
Page Contact Information: Maryland Water Data Support Team
Page Last Modified: 2025-12-15 21:40:16 EST
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