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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Evaluation of drinking water quality in Lake Mzingazi in Richards Bay /

Mathenjwa, Cleopas Mzondeni. January 2009 (has links)
Thesis (MMed.)-University of KwaZulu-Natal, Durban, 2009. / Full text also available online. Scroll down for electronic link.

Identifying and Managing Impacts of Point and Non-Point Source Pollution on Surface Water Quality

Malone, Patrick R. 29 April 2015 (has links)
Surface waters can be impacted by point and non-point source (NPS) pollution including stormwater culverts, runoff, and septic systems. It is important to develop water quality monitoring plans that can be implemented within resource constraints while still providing useful data. The goal of this research was to develop a sampling strategy to identify the impacts of point and NPS pollution on surface waters. This research incorporates water quality monitoring, land use data, precipitation data, and statistical modeling to improve understanding of pollutant impacts on surface waters. Research was conducted at a 152-acre private lake in western Massachusetts. Lake water samples were collected approximately twice per month over 12 months at ten sample locations selected to isolate land uses, including (1) shoreline samples adjacent to homes with septic systems, (2) shoreline samples at stormwater discharge sites, and (3) control samples at the lake influent, lake effluent, and a private beach. Sampling events included dry and wet weather conditions. Water samples were analyzed for physical, chemical, and microbiological parameters including: pH, conductivity, dissolved oxygen, turbidity, alkalinity, nutrients, anions, organic carbon, and microbial indicators (total coliform, E. coli, enterococci, male-specific and somatic coliphages). The data were statistically analyzed to determine how land use, season, and precipitation affect the risk of contamination to surface waters. Results indicated significant water quality variations by land use, season, and precipitation and identified important correlations between water quality parameters.

An analysis of factors influencing water quality of a highly developed recreational lake /

Quimby, Charles Marvin, January 1976 (has links) (PDF)
Thesis (M.S. - Renewable Natural Resources)--University of Arizona. / Includes bibliographical references.

A comparative water quality analysis of selected recreation lakes and streams in the White Mountains of Arizona

Utter, Jack. January 1975 (has links) (PDF)
Thesis (M.S. - Renewable Natural Resources)--University of Arizona. / Includes bibliographical references.

Variations and geologic significance of water quality in the Judith River Formation, north-central Montana

Osterkamp, Waite R. January 1970 (has links) (PDF)
Thesis (M.S. - Geology)--University of Arizona. / Includes bibliographical references (leaves 69-71).

Water quality and optical properties of Swedish lakes and coastal waters in relation to remote sensing /

Strömbeck, Niklas, January 1900 (has links)
Diss. (sammanfattning) Uppsala : Univ., 2001. / Härtill 7 uppsatser.

A comparison of water quality methods and data: GLOBE Program vs. United States Geological Survey

Clemons, Joshua Edward. January 2000 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources) - University of Arizona. / Includes bibliographical references (leave124).

Application of system dynamics modeling techniques to an existing stream water quality model /

Finley, Allan Michael. January 1991 (has links)
Project report (M. Eng.)--Virginia Polytechnic Institute and State University, 1991. / Abstract. Includes bibliographical references (leaf 66). Also available via the Internet.

Water quality modeling of the Tualatin River /

Berger, Christopher J. January 1994 (has links)
Thesis (M.S.)--Portland State University, 1994. / Computer-produced typeface. Includes bibliographical references (leaves [118]-123). Also available on the World Wide Web.

Stochastic modeling for real-time water quality control

Litwin, Yoram J. January 1974 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1974. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

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