Important Legacy real-time page
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
3 data types available - data from 1985-10-01 to 2026-08-02
Daily data
1 data types available - data from 1985-10-01 to 2026-07-31
Field measurements
2 data types available - data from 1977-12-15 to 2026-06-22
Discrete sample data
124 Observed properties (data types) available - with data from 1985-10-09 to 2000-09-28
810 Sampling activities
Statistical tables for select daily data types
1 data types available - data from 1985-10-01 to 2026-07-31
Important information about this monitoring location
LOCATION.-- On left bank 1,000 ft upstream from bridge on Water Street, 0.2 mi south of Upper Marlboro, and 4.7 mi upstream from mouth. PERIOD OF RECORD.-- October 1985 to April 1989, April 1992 to current year. GAGE.-- Water-stage recorder and crest-stage gage. Datum of gage is 4.33 ft above North American Vertical Datum of 1988.
Monitoring locations with continuous data in last 120 days
No locations found
