The Subbasin Survey Program consists of two-year assessments in each of the six subbasins on a rotating schedule.
Year-1 surveys consist of point-in-time water chemistry, macroinvertebrate, and habitat data collection and assessments of about 100 stream sites on the major tributaries and areas of interest in the selected subbasin.
Year-2 surveys focus on a particular region or small watershed within the subbasin, and typically consist of more intensive, repeated sampling at a smaller number of locations. The Year-2 sampling is tailored for the individual needs of a chosen watershed or region or is designed to complement and support another already ongoing SRBC project.
| Year-1 | Year-2 |
|---|---|
| Juniata (2011) West Branch (2010) Middle (2009) Upper (2008) Chemung (2007) Lower (2006) Juniata (2005) West Branch (2003) Middle (2002) Upper (1999) |
West Branch (2011) Middle (2010) Upper (2009) Chemung (2008) Lower (2007) Juniata (2006) West Branch (2005) Middle (2004) Upper (2001) |
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The Susquehanna River Basin Commission's headquarters building, situated along the Susquehanna River, serves as an example of flood resistant design with the first fully-functional floor level and all utilities elevated well above the record setting Hurricane Agnes flood of 1972.