Chesapeake Bay Coastal Bays Rivers and Streams Watersheds
Maryland Department of Natural Resources
Fixed Station Monthly Monitoring
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Chesapeake Bay Mainstem - Susquehanna River (CB1.1)

Map Showing the Location of CB1.1

Location:
Mouth of Susquehanna River

Coordinates (NAD83):
Latitude: 39.5451
Longitude: -76.0813

Description:
This station is a mid-channel site located at the head of the Chesapeake Bay, near the mouth of the Susquehanna River. This station is located in the tidal fresh zone (salinity 0 to 0.5 ppt) in approximately 6 meters of water.

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
Chesapeake Bay Mainstem / Susquehanna River (CB1.1)

Legend

Range 1985 to 2012 2013 Mean

Bottom Water Dissolved Oxygen (mg/l)
Chesapeake Bay Mainstem / Susquehanna River (CB1.1)
Month Minimum Mean Maximum 2012 2013
January 11.80 13.40 14.70 13.60 13.50
February 12.20 13.54 14.30 13.60 13.40
March 11.30 12.56 14.50 12.60 Not Sampled
April 9.15 10.90 12.45 10.00 10.60
May 7.25 8.97 10.50 8.70 8.70
June 5.45 7.02 8.90 7.70 8.00
July 5.65 6.70 8.25 7.30 7.75
August 6.05 6.93 8.05 7.50 7.95
September 6.60 7.61 10.40 8.20 7.40
October 7.19 8.94 10.25 9.20 8.60
November 8.80 10.82 12.82 11.50 10.70
December 9.60 12.43 14.20 12.80 12.20

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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