AWWA IMTECH64734

This slide presentation begins by outlining DBP Stage 2 and outlines information on an initial distributionsystem evaluation thatselected 24 new monitoringsites. The results were used to select 12compliance monitoringsites. The Austin Water Utility approach used residual mapping which showed: water origination points;water travel through distributionsystem;lowest residuals were near Thomas Springs;other low residuals were in Avery Ranch;confirmed nitrification problems at MartinHill and Pilot Knob Reservoirs; unrepresentative water at four TCRsampling locations; used to update routine flushing sites;distance is not always a surrogate fortravel time; and,suggests Stage 2 DBP monitoringlocations. Further topics outlined include: conventional initial distribution system evaluation (IDSE); near entry point sites; high HAA5 sites; high TTHM sites; and, average sites. Includes tables.

Product Details

Edition:

Vol. - No.

Published:

03/01/2007

Number of Pages:

15

File Size:

1 file , 420 KB