Watershed and hydrology Fonteyn Kill

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the fonteyn kill looking downstream towards ecological laboratory (right) bridge laboratory sciences


historically, fonteyn kill s water has been noted cleanness. in 1924, stream s purity noted while 1867 book describes kill s waters pellucid . more recently, stream has been cited suffering urban stream syndrome. surfaces surrounding fonteyn kill highly impervious; stream drains urban zone of city of poughkeepsie, new york, of on 60% impervious. exact size of kill s watershed not known; area @ least large known watershed presumed contribute stream s flow in form of storm drainage. in spite of this, stream bordered combination of residential lots , forested swaths ranging 4–70 meters (13–230 ft) in width. on vassar s campus, kill runs along 4-acre (1.6 ha) outdoor edith roberts ecological laboratory , past school s shakespeare garden.


a 2010 study of stream found fonteyn kill s specific conductance, measure of amount of dissolved road salt in stream s water, 1.0 ms/cm, higher value recorded in casperkill. sites upstream of vassar lake recorded in separate study having specific conductances twice high locations downstream of lake, suggesting regulating effect caused water mixing , retention in vassar lake. total inorganic nitrogen in kill, correlated surrounding green cover, 0.6 milligrams per liter (2.2×10 lb/cu in), average measurements taken in fonteyn kill , casperkill in study. study found fonteyn kill s score on hilsenhoff family biotic index (hbi), scale measuring pollution based on tolerance of endemic benthic macroinvertebrates, approximately six, indicating poor water quality, scores rest of casperkill–fonteyn kill watershed high 7 (poor water quality) low 4 (very water quality).


in 2015, riverkeeper alerted of sewage leak in kill, noting high levels of bacteria indicating presence of fecal matter. new york state department of environmental conservation (dec) investigation found nearby private sewer pipes , manholes filled sludge; cleaned , plans have been instated ensure sewers stay clear henceforth. oil spill observed in kill in 2016 , dec staff again sent respond. dec installed booms absorb oil , began investigation spill s source, unknown of december 6.


efforts being made monitor water quality of fonteyn kill, led vassar college s environmental research institute , cornell university cooperative extension dutchess county environment program. 3 sites regularly sampled water quality while devices such sondes continuously record temperature, conductivity, , ph. benthic macroinvertebrates counted , fecal coliform counts run.





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