Record Display for the EPA National Library Catalog

RECORD NUMBER: 215 OF 224

OLS Field Name OLS Field Data
Main Title Using Computer Models to Determine the Effect of Storage on Water Quality.
Author Grayman, W. M. ; Clark, R. M. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Grayman (W.M.) Consulting Engineers, Cincinnati, OH.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-93/380;
Stock Number PB94-117512
Additional Subjects Storage tanks ; Water quality ; Computerized simulation ; Water supplies ; Water treatment ; Distribution systems ; Water pipelines ; Water services ; Pumps ; Chlorine ; Hydraulics ; Drinking water ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB94-117512 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/27/1994
Collation 13p
Abstract
Water quality can vary dramatically from point to point in drinking water distribution systems. As water moves toward the periphery of a system the chlorine residual tends to disappear. This is usually due to the interaction of the disinfectant with the natural organic matter in the distributed water. Most drinking water systems utilize storage tanks to equalize system demand and to supply sources and to insure adequate fire flow and hydraulic reliability. Long residence times result from using storage tanks in a system which when coupled with chlorine demands in the distributed water result in the loss of disinfectant residuals. Careful consideration of tank location and system operating policies can result in improved water quality.