Causes of Corrosion in Copper Water Piping

An Article on this issue can be read here. 

Cathodic Protection for Internal Surface of Water Well Casings

I was asked recently if cathodic protection can be used to protect the internal surfaces of a water well casing.

Although cathodic protection is used to protect the external surface of water, oil production well casings, and natural gas well casings; it is not standard practice to use cathodic protection inside a water well casings.

I was project engineer for a experimental project to use cathodic protection to protect the internal surfaces of a water well casing.  Special magnesium anodes had to be made that were small enough to fit inside the well casing.  A permanent reference cell was put inside the well casing and it's wire connection mounted inside a test station near the water well. 

The result was the cathodic protection was effective in protecting the water well when the pump was not running.  Since cathodic protection current requirements are a function of water velocity, the water well didn't have sufficient cathodic protection levels when the pump was operating.  However, internal corrosion of water wells tend to occur mostly when the water well is idle. 

NACE International Los Angeles section - April 2014 USS Iowa Tour

(NCCPC) Northern California Cathodic Protection Committee

As current Vice Chairman of SCCPC (Southern California Cathodic Protection Committee), I am interested in creating a NCCPC.  The NCCPC will cover Alameda, Contra Costa, Napa, San Francisco, San Mateo, Santa Clara, Solano, Sacramento, and Sonoma counties.  Due to the ever growing DC mass transit systems operating in Northern California, I see the need for such a committee.

I will be contacting various persons by email about this matter.

Anyone interested in joining this committee, please contact me by email at SCCPC@Outlook.com

NACE International San Francisco Section Meeting - April 2014

SSPC Northern Calilifornia - Nevada Chapter Meeting - March 2014

MIC in Cargo Tanks of Crude Oil Tanker

I was surprised recently to discover that this paper which I co-authored is still available in the NACE International store.  NACE International members can download it as a PDF for free from the www.nace.org website.

Stray Currents - The Blog of the SCCPC (Southern California Cathodic Protection Committee)

I have created a blog for the SCCPC.  This blog can be viewed at http://sccpc-blog.blogspot.com/.