Award Date

1-1-2003

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Civil and Environmental Engineering

First Committee Member

Thomas C. Piechota

Number of Pages

170

Abstract

This research evaluates the quality of urban runoff, from various nonpoint sources during dry weather flows (DWF) and wet weather flows (WWF) in the Las Vegas Valley. Standard constituents in urban runoff were measured to assess the quality of urban runoff, to identify the possible sources of DWF (groundwater flows, excessive irrigation and car washing) and to determine the quality of runoff from residential areas and parking lots during WWF. DWF samples were collected from storm channels on a weekly and monthly basis. WWF samples were collected when the precipitation was at least 1mm. DWF water quality results indicated that monitoring stations were possibly influenced by flows from groundwater and over irrigation including construction activities and erosion. Car washing was a significant source of nutrients and total Fe. WWF indicate higher levels of Ortho-P, TP-P, COD, total Fe, and NH3-N in the residential area and the parking lot.

Keywords

Dry; Flows; Nonpoint; Pollution; Source; Urbanized; Watershed; Weather; Wet

Controlled Subject

Civil engineering; Environmental engineering

File Format

pdf

File Size

7577.6 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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