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Home CCSU Theses & Dissertations Chemical Water Quality Assessment of the Southern Part of the Eightmile River in Lyme, Connecticut

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Chemical Water Quality Assessment of the Southern Part of the Eightmile River in Lyme, Connecticut

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Author	Bakaj, Magen.
Title	Chemical Water Quality Assessment of the Southern Part of the Eightmile River in Lyme, Connecticut
Resource Type	Text
Abstract	Throughout human civilization populations have concentrated around lakes, streams, rivers, and oceans. This is due to humans' dependence on abundant sources of fresh water for a plethora of reasons including but not limited to: drinking, recreation, irrigation, industrial, agricultural, and sanitation. This concentration of populations around water results in increased pressure negatively impacting water quality. The Clean Water Act of 1972 protected US waterways from further contamination and helped to increase water quality in surface waters across the nation. However human impacts are frequently affecting water quality throughout the US. In order to determine if rivers and streams are impaired, state and federal agencies have proposed regulatory limits on several parameters. These limits are set forth in Water Quality Standards set by both the US Environmental Protection Agency and the Connecticut Department of Energy and Environmental Protection. Both agencies are constantly revising and updating these standards to keep up with current research and technology. This study conducted a baseline water quality survey of the southern part of the Eightmile River in Lyme, Connecticut. Six sites were identified within the southern section of the Eightmile River. These sites were located at or near road crossings. Chemical and physical parameters sampled include temperature, DO, conductivity, specific conductivity, pH, TSS, turbidity, total phosphorus, reactive phosphorus, chloride, nitrate, nitrite, and ammonia. No sites sampled were determined to be significantly impacted in the southern section of the Eightmile River watershed. The pH levels at all six sampling sites were below 6.5 the Class B water classification at least one time during the sampling period. It is difficult to determine the cause of the iv decreased pH at these sites. Stormwater has been reported to have a pH around 5.0 in the Connecticut area and could be a contributing factor to these measured values. In addition the drought that was experienced during the summer may have contributed to these lower values. Although there were some exceedances of regulatory limits set by both US EPA and CT DEEP, the overall water quality in the southern part of the Eightmile River is not of concern. All sites were determined to be Class AA or A waters with the exception of dissolved oxygen limits. Dissolved oxygen levels were thought to be low due to the decreased ability of warm water to hold oxygen. Drought conditions and low flow resulted in increased water temperature therefore resulting in low dissolved oxygen concentrations. With the above mentioned exception, no significant water quality issues were discovered during the sampling period. Because of this no significant management practice changes are recommended at this time. However, if further development is expected in this area, protection of water quality should be paramount in these activities. Best Management Practices must be implemented when completing any construction in the area including, erosion control measures, reducing impervious surfaces, reduction or elimination of fertilizer application, pet waste management, and upgrading any aging septic tanks that may not be functioning properly.
Notes	"Submited in Partial Fulfillment of the Requirements for the Degree of Masters of Arts in Biology."; Thesis advisor: Clayton Penniman.; M.A.,Central Connecticut State University,,2012.; Includes bibliographical references (pages 63-64).
Subject	Water quality--Connecticut--Eightmile River (New London County and Middlesex County) Eightmile River (New London County and Middlesex County, Conn.)
Software	System requirements: PC and World Wide Web browser.
Language	eng
Date of Publication	2012
OCLC number	828419796
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Home CCSU Theses & Dissertations Chemical Water Quality Assessment of the Southern Part of the Eightmile River in Lyme, Connecticut

Chemical Water Quality Assessment of the Southern Part of the Eightmile River in Lyme, Connecticut

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