Watersheds of the Delaware Bay & Estuary Basin
Appoquinimink River | Army Creek | Blackbird Creek | Broadkill River | C&D Canal East | Cedar Creek | Delaware Bay | Delaware River | Dragon Run Creek | Leipsic River | Little Creek | Mispillion River | Murderkill River | Red Lion Creek | Smyrna River | St. Jones River
Today the scenery is dominated by agricultural fields, wetlands, and developments. Wetlands in the Mispillion watershed make-up approximately one-quarter of the land, and are a great resource for protecting Delaware, but unfortunately, they are not able to function to their fullest potential in this watershed. Mispillion watershed wetlands are in fair condition, receiving a C as its overall grade. It has lost approximately 19% of its original wetlands since the early 1700s, mainly due to conversion of land to agricultural fields or development.
Tidal (C), riverine (C-) wetland types were assessed and graded (grade in parenthesis) in this watershed. The most common stressors to these wetlands were forest harvesting, invasive plant species, storm water inputs, excavation, filling, and ditching in the wetland, and development, agriculture, and roads in the lands surrounding the wetland (buffer). The complete reports and data for this assessment are available online.
Each of the sites is sampled through the programs listed above for a consistent suite of environmental contaminants. These contaminants are broadly classified as Volatile Organic Compounds (VOCs), Semi-Volatile Organic Compounds (SVOCs), Pesticides, Polychlorinated Biphenyls (PCBs) and Metals as listed using USEPA and DNREC defined standards. When sites are adjacent to water bodies sediment samples are collected to assess potential impact from a site on the health of the waters.
In water bodies of the Cedar Creek Watershed, samples have indicated that mercury is present in the environment at levels requiring further attention under the Clean Water Act (1972). The Cedar Creek Watershed is on the 303d list of impaired waters as well as having State of Delaware Fish Consumption Advisories for mercury.
If you would like to view reports for any of the sites in the SIRS program please follow the link the DNREC Environmental Navigator to search by map for the Cedar Creek Watershed.