Chesapeake Bay Coastal Bays Rivers and Streams Watersheds
Maryland Department of Natural Resources
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Lower Potomac River - Maryland Point (RET2.2)

Map Showing the Location of RET2.2

Location:
Lower Potomac River Off Maryland Point

Coordinates (NAD83):
Latitude: 38.3521º
Longitude: -77.2044º

Description:
This station is an oligohaline (salinity 0.5 to 5 ppt) site in the mid-channel of the Potomac River.

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 1985 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 Bottom Water Dissolved Oxygen
Lower Potomac River / Maryland Point (RET2.2)

Legend

Range 1985 to 2012 2013 Mean

Bottom Water Dissolved Oxygen (mg/l)
Lower Potomac River / Maryland Point (RET2.2)
Month Minimum Mean Maximum 2012 2013
January 10.00 11.57 13.20 11.90 9.60
February 9.90 12.19 14.10 12.00 11.40
March 7.25 10.60 12.60 11.20 12.00
April 7.35 8.93 10.05 8.80 9.70
May 5.45 7.30 9.00 9.00 8.40
June 3.30 5.68 9.10 6.20  
July 3.55 5.44 7.55 4.30  
August 4.25 5.56 7.90 5.00  
September 4.60 6.20 7.15 5.60  
October 4.60 7.10 8.65 4.60  
November 7.40 9.16 10.60 9.10  
December 8.60 10.33 12.70 9.80  

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 Mark Trice of MD DNR's Resource Assessment Service at (410) 260-8630 or by email at mtrice@dnr.state.md.us.


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