Perchlorate is of concern to drinking water suppliers because of its potential risk
to human health, tendency to disperse rapidly in groundwater,
and resistance to conventional water treatment processes. An occurrence
survey was performed in 1997 and 1998 to assess the prevalence of perchlorate in surface
and subsurface drinking water supplies of the American Water System. The survey
examined 40 surface water sites in 11 states and 367 groundwater wells in 17 states.
No perchlorate was detected in any of the surface waters. The presence of perchlorate
was confirmed in nine (~2.5%) wells, all located in California or New Mexico.
Positive perchlorate concentrations ranged from <4 to ~7 ug/L, well below the
health advisory guideline value of 18 ug/L suggested by the California Department
of Health Services. These results help confirm previous reports that perchlorate
contamination is a localized problem affecting sites near military-related facilities
or other major sources of perchlorate. Includes 40 references, tables, figures.
| Edition : | Vol. 93 - No. 1 |
| File Size : | 1
file
, 370 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Published : | 01/01/2001 |
