AWWA WQTC55014

Utility managers at drinking water treatment plants faced with deteriorating raw water quality must allocate resources between increased treatment at the plant and promotion of best management practices (BMPs) in the watershed. This paper describes a methodology for evaluating the impact of point and nonpoint source pollution on water treatment operations and costs, evaluating the potential of agricultural and urban BMPs to mitigate these impacts, and comparing the efficacy and cost of BMPs in the watershed with increased treatment at the water treatment plant (WTP). A screening level watershed model was used to quantify changes in annual pollutant loads exported under varying land use and BMP implementation scenarios, and a dynamic water treatment plant model was used to quantify the impact of associated changes in daily raw water quality profiles on water treatment plant operations and costs. Data on the ratio of catchment size to WTP size was used to determine the fraction of utilities that may benefit from promotion of BMPs. Includes 6 references, tables, figures.

Product Details

Edition:

Vol. - No.

Published:

01/01/2001

Number of Pages:

6

File Size:

1 file , 230 KB