Water Quality
Sampling Program

Sligo
Water Quality
Data
Sligo-NW Branch
Water Quality Sites
Results from
Periodic Outfall
Monitoring
National Airport
Temperature/Precipitation
Data

Sampling Program Objectives

  1. To monitor the water quality of Sligo Creek in a chemical manner and provide data to the general public and the government
  2. To make the Montgomery County and Maryland governments aware that we are watching the creek regularly
  3. To report to the government when there are illicit discharges to the creek so that they are mindful of it and consider it in making budgeting decisions
  4. To accumulate water quality data on Sligo Creek to know if it is becoming better or worse over time

Station ANA0082
Anacostia River at Bladensburg Road



Chesapeake Bay
Water Quality

Sampling Sites

Site Name Description
Main Stem Sligo Creek at Powhatan Road and Sligo Parkway in Hyattsville. This site is close to where Sligo Creek empties into the Northwest Branch and thus is a good place for comprehensively assessing the entire Sligo Creek watershed.
Takoma Branch Confluence of Takoma Branch with Sligo Creek. The nearest road is Chillum Manor Drive in Hyattsville. This site enables a comprehensive assessment of Takoma Branch.
Wheaton Branch Confluence of Wheaton Branch with Sligo Creek. The nearest road is Dennis Avenue. This site allows for a comprehensive assessment of the Wheaton Branch including the source water flowing from the stormwater management ponds adjacent to Dennis Ave.

Testing Parameters and Equipment

Click here for an explanation of the parameters.

Parameter Equipment Used
Temperature YSI 85 from 2/2/2008 to present; before 2/2/2008, taken from the pH or conductivity testing instruments
pH ExStik pH (pH 100) waterproof series pen from Extech Instruments
Turbidity Smart 2 Colorimeter from LaMotte
Specific Conductance YSI 85 from 2/2/2008 to present; before 2/2/2008, ExStik Conductivity tester from Extech Instruments
Dissolved Oxygen YSI 85 from 2/2/2008 to present; before 2/2/2008, AW3011 Dissolved Oxygen Meter from Hanna Instruments
Nitrate RQ Flex 10 from EMD from 7/19/2008 to present; Smart 2 Colorimeter from LaMotte from 2004 to 7/5/2008.
Phosphate discontinued after 7/5/2008 because of unreliability; Smart 2 Colorimeter from LaMotte from 2004 to 2008.

Recommended Reading

The water quality committee would like to thank Masaya Maeda of the Anacostia Watershed Society for his guidance in establishing our water sampling program.