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 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 is used to quantify changes in annual
suspended solids and organic carbon loads exported under varying land use and
BMP implementation scenarios, and a dynamic water treatment plant model is
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 is used to determine the fraction of utilities that may
benefit from BMP promotion.
Includes 7 references, tables, figure.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 330 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 13 |
| Published : | 06/16/2002 |
