Chesapeake Bay Coastal Bays Rivers and Streams Watersheds
Maryland Department of Natural Resources
Fixed Station Monthly Monitoring
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Middle Potomac River - Little Falls (POT1184)CORE/Potomac - (POT1184)

Map Showing the Location of POT1184

Location:
Little Falls on the Potomac River, Just North of Washington, D.C.

Coordinates (NAD83):
Latitude: 38.9482
Longitude: -77.1272
Latitude: 38.9482
Longitude: -77.1273

Description:
This station is a shallow, non-tidal, fresh water site where water clarity and salinity are not measured.PO09;Potomac River Gage station above Little Falls Dam; Characterizes free-flowing freshwater

Current Parameter: Dissolved Oxygen

Choose Other Parameters:
Dissolved
Oxygen
Water
Temperature
Salinity pH Water
Clarity


The yellow shaded area represents the range of monthly mean values that have occurred from 1986 to 2012. The blue line shows the monthly mean values for each month over that same time period. The red line shows what the current years conditions are and how they compare to the range and the average values we've seen.

2013 Surface Water Dissolved Oxygen
Middle Potomac River / Little Falls (POT1184) CORE/Potomac / (POT1184)


Legend

Range 1986 to 2012 2013 Mean

Surface Water Dissolved Oxygen (mg/l)
Middle Potomac River / Little Falls (POT1184)CORE/Potomac / (POT1184)
Month Minimum Mean Maximum 2012 2013
January 10.99 13.10 15.00 14.00 13.50
February 10.90 12.90 14.68 10.90 13.70
March 9.90 11.97 15.98 10.70 13.40
April 8.40 9.94 11.50 9.70 11.00
May 7.60 8.90 10.40 7.80 10.00
June 6.00 7.81 9.60 7.70 8.40
July 5.69 7.16 8.30 7.10 7.50
August 6.10 7.15 8.29 7.20 7.10
September 6.60 7.60 8.30 7.00 7.40
October 7.70 8.72 9.78 7.80 8.50
November 8.60 10.55 13.68 10.90 11.20
December 9.70 11.88 14.58 11.30 13.10

NOTE: Results displayed are provisional and have not undergone full Quality Assurance procedures. Although Maryland DNR believes the data presented here are correct, we cannot guarantee their accuracy at this time.

Choose Other Parameters:
Dissolved
Oxygen
Water
Temperature
Salinity pH Water
Clarity

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Additional water quality data, including nutrient data, is currently available through the Chesapeake Bay Program Data Hub.

Contact MD DNR's Resource Assessment Service at (410) 260-8630
or by email at eyesonthebay@dnr.state.md.us.


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