Prior to June 30, 2010, USGS maintained a site on the NW Branch near Hyattsville, MD.Between Feb 2004 and Jun 2010 Friends of Sligo Creek maintained data anomalies for that site.
State standards: Temperature <= 32.2°C Turbidity <= 150 NTU 6.5 <= pH <=8.5 Dissolved oxygen > 5.0 mg/l
See USGS site for Sligo Creek gauge. Use of provisional USGS data is subject to revision.
Click on month/year to see details
In April 2013, USGS changed the gauges at Sligo Creek.