AWWA DSS60349

The objective of this desk-top analysis was to identify water quality and treatment issuesassociated with blending the City of Issaquah's (in Washington State) undisinfected groundwater supplies with treated surface water via a new Regional Pipeline. The analysis includedevaluation of various blends of groundwater (GW) with surface water (SW) at 25%, 50%, and75%, and switching to 100% of either source. Corrosion potential, microbial conditions,disinfection byproducts, manganese oxidation and precipitation, and fluoride were assessed.The Rothberg, Tamburini, & Winsor Model for Corrosion Control and Process Chemistry (RTWModel) -Version 4.0 (AWWA, 1996) and simple laws of mixtures were used to predict waterquality outcomes as a result of blending. Recommendations were developed to ensurecompliance with existing and proposed regulations, and to maintain or improve the aestheticcharacteristics of the blended waters. Includes tables, figures.

Product Details

Edition:

Vol. - No.

Published:

09/29/2004

Number of Pages:

20

File Size:

1 file , 640 KB