Generally, the groundwater pumped from wells is safe to drink. As water moves through layers of soil to reach the underground aquifer, disease-causing organisms such as bacteria and viruses are filtered out or eaten
by tiny soil animals. Many harmful chemicals also are broken down in the soil before they...
The Safe Drinking Water Act ensures that public systems provide water that meets health standards. However, no such protection exists for millions of Americans who obtain water from private wells. Concern for safety is warranted as most wells draw from underground aquifers, and studies demonstrate that groundwater is affected by...
Por lo general, el agua subterránea extraída de los pozos de agua es buena para beber. A medida que el agua pasa por las diferentes capas del suelo se va purificando poco a poco. Los organismos que causan enfermedades, como bacteria y viruses, van siendo filtrados y digeridos por animalitos...
The present study was conducted as a three part investigation to
(i) examine the incidence, distribution and kinds of standard plate
count bacteria present in chlorinated and raw water; (ii) study the
ecological role and possible health significance of Aeromonas spp.
in distribution water, and (iii) evaluate the effects of...
Previous studies of six Oregon public water supply systems revealed that greater proportions of the standard plate count (SPC) bacteria from distribution waters were multiple antibiotic resistant (MAR) compared to isolates from the corresponding source raw waters. In the present study, two of these water systems were examined further to...
Blood, liver, kidney, femur, and ovaries were assayed
from female Wistar rats following oral administration of
uranyl nitrate. Three uranium concentrations were
studied for six time periods ranging from 4 hours to 240
hours following gavage. Uranium burdens of tissues were
determined by neutron activation and delayed fission
neutron counting...
Water in 70 percent of the cities in the United States is hard enough that softening is either required or recommended. It is estimated that approximately 30 percent of all homes in the United States use water softeners. Water softeners, the cation exchange types suited for residential use, exchange sodium...
Published January 1993. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog