Water-quality, biology, and streambed sediment data and preliminary geochemical interpretations for streams in the upper Prickly Pear Creek watershed, Montana, 2000,

The Nomini Creek Watershed/Water Quality monitoring project was initiated in 1985, as part of the Chesapeake Bay Agreement of 1983, to quantify the impacts of agricultural best management practices (BMPs) on improving water quality. The watershed monitoring system was designed to provide a comprehensive assessment of the quality of surface and groundwater as influenced by changes in land use, agronomic, and cultural practices in the watershed over the duration of the project. The primary chemical characteristics monitored include both soluble and sediment-bound nutrients and pesticides in surface and groundwater. Water samples from 8 monitoring wells located in agricultural areas in the watershed were analyzed for 22 pesticides. A total of 20 pesticides have been detected in water samples collected. Atrazine is the most frequently detected pesticide. Detected concentrations of atrazine ranged from 0.03 - 25.56 ppb and occurred in about 26 percent of the samples. Other pesticides were detected at frequencies ranging from 1.6 to 14.2 percent of all samples collected and concentrations between 0.01 and 41.89 ppb. The observed concentrations and spatial distributions of pesticide contamination of groundwater are compared to land use and cropping patterns. Results indicate that BMPs are quite effective in reducing pesticide concentrations in groundwater.

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A storm water retrofit plan for the mimico creek watershed

Water Science & Technology ◽

10.2166/wst.1999.0539 ◽

1999 ◽

Vol 39 (12) ◽

pp. 133-140

Author(s):

J. Y. Li ◽

D. Banting

Keyword(s):

Water Quality ◽

Quality Management ◽

Great Lakes ◽

Management Practices ◽

Water Quality Management ◽

Storm Water ◽

Planning Tool ◽

Creek Watershed ◽

Urbanized Areas ◽

Goals And Objectives

Storm water quality management in urbanized areas remains a challenge to Canadian municipalities as the funding and planning mechanisms are not well defined. In order to provide assistance to urbanized municipalities in the Great Lakes areas, the Great Lakes 2000 Cleanup Fund and the Ontario Ministry of the Environment commissioned the authors to develop a Geographic Information System planning tool for storm water quality management in urbanized areas. The planning tool comprises five steps: (1) definition of storm water retrofit goals and objectives; (2) identification of appropriate retrofit storm water management practices; (3) formulation of storm water retrofit strategies; (4) evaluation of strategies with respect to retrofit goals and objectives; and (5) selection of storm water retrofit strategies. A case study of the fully urbanized Mimico Creek wateshed in the City of Toronto is used to demonstrate the application of the planning tool.

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SEDIMENT AND WATER QUALITY DETERMINATION OF THE OTTER CREEK WATERSHED

10.1130/abs/2018am-319270 ◽

2018 ◽

Author(s):

Hannah J. Veldhuizen ◽

◽

Bryanna Matthews ◽

Jennifer C. Latimer ◽

James H. Speer

Keyword(s):

Water Quality ◽

Creek Watershed

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