Following a lead remediation program in Seattle
(Washington) Public Schools, a field testing program was
undertaken to assess the variability of lead at school
drinking water sources. Results from 768 samples (384
first-draw and 384 flushed samples) found that the
mean lead concentration was 3 µg/L, considerably less
than the 21 µg/L measured before the remediation.
The highest lead levels and greatest variability in
sampling results were observed for end-use plumbing
that contained standard brass components with
~3-8% lead. Relatively low lead concentrations and
sampling variability were observed for water sources
with low-lead water fountains and plumbing components.
Study results showed that implementation of a program
involving replacement of end-use plumbing with
nonleaded materials significantly reduced lead levels in
drinking water sources within Seattle Public Schools.
These findings also indicated that the likelihood of lead
release in school drinking water fountains can be
assessed on the basis of the characteristics of end-use
plumbing configuration at each source. Includes 14 references, tables, figures.
| Edition : | Vol. 100 - No. 2 |
| File Size : | 1
file
, 390 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Published : | 02/01/2008 |
