The BWWB investigated as an alternative the feasibility of replacing the primary
disinfectant chlorine with chloramines. Water treated with chloramines has demonstrated
significantly smaller DBP concentrations than water treated with chlorine (Brodtman
1979). In January 2004, the Washington Post reported that the District of Columbia
Water and Sewer Authority (WASA) had found elevated lead levels in the drinking water
of more than 4,000 homes in Washington, DC, during 2003 testing. Discovery of
increased lead residual in WASA drinking water occurred in conjunction with the switch
from chlorine to chloramines, as the primary disinfectant, in 2001 (Tiemann 2005).
Because of the problems in Washington, DC, the BWWB began to consider other
alternatives to chloramines more seriously. However, BWWB chose to prudently
complete research planned during the consideration of chloramines. The purpose of this
study was to determine if chloramines increase metals residuals in pipes and fixtures treated
with phosphate-based inhibitors. Includes 20 references, extended abstract only.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 860 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 11/01/2009 |
