Maryland Department of Natural Resources


Interstitial water chemistry of Chesapeake Bay sediments: methods and data (1978-1981)

1985, Hill, J.M., Conkwright, R.D., Blakeslee, P.J., and McKeon, G.

Open File Report 8


Between 1978-1981 one hundred and fifty-four sites were sampled throughout the Chesapeake Bay region for interstitial water. Ninetyseven of these sites were suitable for collection of interstitial water samples. At each site three cores of approximately one meter in length were collected; two cores for interstitial water chemistry, the other core for physical characterization. The chemical parameters determined on the interstitial water samples were:

Group I - total dissolved SiO2°, Mn, Fe, Cu, Zn, Cd, Pb, Eh (redox potential), pH, pS2-, and salinity (calculated from conductivity).

Group II - Na+, K+, NH4+, Mg2+, Ca2+, F-, Cl-, NO2-, NO3-, PO43-, SO42-, and alkalinity. The Group I parameters were analyzed by the Maryland Geological Survey Coastal and Estuarine Geology division; Group II parameters were measured at the Chemistry Department at the College of William and Mary (Williamsburg, VA). The methods of collection and analysis of the Group I parameters are reported along with the results of the analyses, collection dates, water depth, station location, core descriptions, and porosity of the sediment associated with the interstitial water. References and information about related contemporaneous projects are given.

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Open-File Report 8 (pdf, 7.7 MB)