Mattawoman Creek Near Pomonkey, Md Realtime Data
MATTAWOMAN CREEK NEAR POMONKEY, MD
Realtime Data • Report • Conditions
0
Discharge (cfs)
1.7
Gauge Height (ft)
USGS 01658000
Streamflow discharge was last observed at 0 cfs, and a gauge height of 1.68 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 5 .
Weather today, Tomorrow,
The creek is fed by several tributaries and contains several small dams. Seasonally, the creek experiences higher flows during the wetter months and lower flows during drier months. The hydrology of Mattawoman Creek is unique as it is one of the last free-flowing streams in the Washington, DC metropolitan area and is home to a diverse range of aquatic species. Additionally, the creek has been the focus of conservation efforts due to its important ecological value.
August 2, 2026
| Elevation | 46.0 ft |
| Last Updated | |
| Gage height, ft | 1.68 ft |
| Stream water level elevation above NAVD 1988, in ft | 41.22 ft |
| Streamflow, ft³/s | 0.02 ft3/s |
| Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C | 173.0 uS/cm @25C |
| Dissolved oxygen, water, unfiltered, mg/L | 6.6 mg/l |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU) | 4.6 FNU |
| pH, water, unfiltered, field, standard units | 6.9 std units |
| Temperature, water, degC | 22.9 deg C |
| Percent of Normal | 1% |
| Year Over Year Average | 12 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 4,090 cfs |
| Geolocation | 38.60, -77.06 |
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