Editing Fairfield County, Connecticut (section)

===Water===
The agreed 1684 territorial limits of the county are defined as {{convert|20|mi|km}} east of New York's [[Hudson River]], which extends into [[Long Island Sound]] with a southerly limit of halfway to Long Island, New York. The eastern limit is mostly a [[natural border]] defined as the halfway point of the [[Housatonic River]] with New Haven County with the exception of several islands belonging wholly to [[Stratford, Connecticut|Stratford]]. The depth of the Sound varies between 60 and {{convert|120|ft|m}}.

The county hosts or contains the rivers [[Byram River|Byram]], [[Housatonic River|Housatonic]], [[Mianus River|Mianus]], [[Mill River (Fairfield)|Mill]], [[Norwalk River|Norwalk]], [[Pequonnock River|Pequonnock]], [[Rippowam River|Rippowam]], [[Saugatuck River|Saugatuck]], and [[Still River (Housatonic River)|Still]].

====Pollution====
The [[Still River (Housatonic River)|Still River]] is polluted with mercury nitrate from the hat industry in [[Danbury, Connecticut|Danbury]], also thereafter diluting into the [[Housatonic River]] and [[Long Island Sound]].<ref name=Verekamp>{{cite journal|last1=Varekamp|first1=JC|last2=Buchholtz ten Brink|first2=MR|last3=Mecray|first3=EL|last4=Kreulen|first4=B|title=Mercury in Long Island Sound Sediments|journal=Journal of Coastal Research|date=Summer 2000|volume=16|issue=3|pages=613–626|jstor=4300074}}</ref><ref name=Lerman>{{cite thesis |last1=Lerman-Sinkoff |first1=Sarah Tziporah |date=April 2014 |title=Transport and Fate of Historic Mercury Pollution from Danbury, CT through the Still and Housatonic Rivers  |type=BA thesis |publisher=Wesleyan University |url=https://digitalcollections.wesleyan.edu/object/ir-639 |access-date=April 6, 2023 |doi=10.14418/wes01.1.1052|doi-access=free }}</ref>{{better source needed|date=April 2023}}

The Housatonic is residually polluted with [[Monsanto]] chemicals called [[Aroclor|Aroclor, polychlorinated biphenyls, or PCBs]]. From {{circa|1932}} until 1977, the river received PCB [[water pollution|pollution]] discharges from the [[General Electric]] plant at [[Pittsfield, Massachusetts]].<ref>U.S. Environmental Protection Agency (EPA). Boston, MA. [http://www.epa.gov/NE/ge/sitehistory.html GE/Housatonic River Site in New England: Site History and Description."] {{webarchive|url=https://web.archive.org/web/20110519121339/http://www.epa.gov/NE/ge/sitehistory.html |date=May 19, 2011 }} November 12, 2009.</ref>

{{Rivers of Connecticut}}