Wednesday, Jan. 26, 2005 - Fluoridation:  Weigh the risks along with the benefit

Monday, April 25, 2005 - Water Treatment's Big Picture Subject to Debate

Monday, May 7, 2007 - Portland-area rivers test positive for a veritable pharmacy...

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

  April 2000 - Proposed Ground Water Rule

  Explore Issue, Volume, Number 5 - Water:  Essential for Existence

  The Guardian, April 24, 2003 - Memory of Water

  OAWU H₂Oregon, Spring 2005, Vol. 27, No.2 - Bad Bugs, Bad Bugs, What You Gonna Do?

  New York Times, April 3, 2007 - Drugs are in the Water, Does it Matter?

Treating Water at ORP Speed

ORP Technical Education

ORP/Redox Troubleshooting

Frequently Asked Questions - ORP

Technical Bulletin-No.18  "ORP Millivolts - The Sensor for Measurement of Disinfection

Technical Bulletin-No.24  "Understanding Oxidising Biocides and ORP Control

Technical Bulletin-No.28  "ORP Millivolts & Free Available Halogen charts for Swimming Pools and Cooling Towers

What is ORP?

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