Water Quality

Apr 19 2002
This article is part one of a three-part series addressing water chemistry basics.   Basic water chemistry, terminology and applications can be very...
Mar 26 2002
As the population in Southern California increases, more and more demands are being put on the state’s groundwater resources, further exacerbating...
Jan 21 2002
A report released by the Environmental Working Group (EWG) and U.S. Public Interest Research Group (U.S. PIRG) has taken aim at chlorination...
Dec 20 2001
Control of microbial growth and biofilm development in facility water systems to reduce Legionella amplification and the risk of legionellosis is?or...
Dec 10 2001
The intake system that will draw cooling makeup water from the Kaskaskia River for the $250-million Holland energy plant in Shelby County, Illinois,...
Dec 10 2001
Water supply security concerns have been discussed at length in the United States in recent years, but in the past month this debate has taken on a...
Oct 19 2001
Many coastal water utilities across the United States are striving to find additional sources of water to meet the demands of burgeoning...
Aug 10 2001
As the POU/POE water treatment industry progresses to new levels and meets new challenges, issues regarding regulations and standards continually...
May 20 2001
The facility had two conventional water treatment plants on a small site trapped between a park and Lake Michigan, leaving little room for expansion...
May 9 2001
In the last issue, we reviewed ultraviolet (UV) disinfection as a suitable technology for treating biologically unsafe water supplies. In this...
May 9 2001
The following is some basic information compiled from industry experts at diverse companies. Additional information is available at the contact...
May 8 2001
Recently, cooling towers have become recognized as a major source of Legionella infection. This fact has stimulated a growing number of lawsuits and...
Mar 13 2001
On June 22, 2000, the U.S. Environmental Protection Agency (EPA) proposed lowering the maximum contaminant level (MCL) for arsenic from 50 down to 5...
Mar 13 2001
The occurrence of Cryptosporidium parvum and other pathogens in water supplies poses a dangerous problem to the water industry and human health. In...
Feb 18 2001
Seasonal Temperature Effects While temperature is acknowledged to be an important factor in water treatment, remarkably little study has been made of...
Dec 28 2000
Escherichia coli, a.k.a. E. coli. A terrible, but familiar word to the public suggests sewage or animal waste contamination. E. coli 0157:H7 is...
Dec 28 2000
There are approximately 73,000 cases of E. coli annually in the United States, according to the Centers for Disease Control and Prevention. However,...
Dec 28 2000
In today’s laboratory environment, it is essential that pure water is available for numerous applications. If contaminated water comes into contact...
Dec 28 2000
People must recognize that drinking water contamination is a serious problem. It is a problem that is constantly being addressed by government...