Automation of disinfection process using ORP reduces chlorine by 32%

Oxidation -Reduction Potential (ORP) for Water Disinfection Monitoring, Control, and Documentation

Oxidation Reduction Potential (ORP)

The ABC's of ORP

CDC Procedure for Cleaning Towers infected with Legionella

EPA Wastewater Technology Fact Sheet:  Chlorine Disinfection

Environmental Protection   November/December 2004 - Safeguarding Our Water - Membrane Filtration Protects Great Lakes' Drinking Water From Cryptosporidium Microbes

Inspection Report:  Effects of Ground Loop Interference on Electrode

Environmental Protection   November/December 2004 - Safeguarding Our Water - Membrane Filtration Protects Great Lakes' Drinking Water From Cryptosporidium Microbes

Environmental Protection  Sept. 1, 2003 - Let Your UV Light Shine

Portland - Cryptosporidium

Monday, Jan. 3, 2011 - Tests of Bull Run water find no cryptosporidium...

Thursday, Jan. 5, 2012 - Portland finds cryptosporidium in Bull Run...

Wed., Jan. 11, 2012 - Portland leaders play down 3rd positive test...cryptosporidium

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