About Bill Anderson

William B. Anderson is a Research Associate Professor and the Associate Director of the Water Science, Technology & Policy Group at the University of Waterloo who has been active in drinking water quality and treatment research for almost 40 years.

Two papers-Application of UV-LED to Full-Scale Drinking Water Disinfection—-UV LED Water Disinfection-Validation and Small System Demonstration

Two papers on full-scale/demonstration-scale evaluations of UV-LED for disinfection have been recently published (below). Both tested the world's first commercial UVC LED water disinfection reactor (the PearlAqua by Aquisense) and successfully demonstrated “proof-of-concept for the application of UVC LEDs for municipal water treatment.” UV LED technology continues to be a promising alternative to UV mercury lamp-based systems.

Sink to River – River to Tap – A review of potential risks from nano-particles & microplastics

Hi all…following up from the WHO report on microplastics that I recently circulated, the UK Water Industry Research Limited has just released a report entitled “Sink to River - River to Tap - A review of potential risks from nano-particles & microplastics.”

Microplastics in drinking water-new WHO report

Hi all…the WHO has released a lengthy report entitled ‘Microplastics in Drinking Water’. It is a good compilation of potential issues associated with microplastics and is available for free download. There is also an Information sheet: Microplastics in drinking-water which provides key messages and answers to some common questions. This may be even more useful than the report for some of you.

In 2000, Walkerton’s poisoned water ruined his life-He decided it was time to end it

In response to my recent emails dealing with waterborne disease outbreaks, I was directed to an article in the Toronto Star published in May 2018 which really got my attention. I think that as water professionals this is an article we should all read when we have a few minutes.

By |2019-08-01T14:37:07-04:00August 1st, 2019|Drinking Water, Papers & Articles|0 Comments

Guidance on the use of QMRA in drinking water and other Health Canada guidelines

Health Canada has been busy with new, reaffirmed, and proposed guidelines as well guidance documents this year. The latest is ‘Guidance on the use of quantitative microbial risk assessment in drinking water.’ It has been approved and is available for viewing/download.

By |2019-08-01T14:28:03-04:00July 30th, 2019|Drinking Water, Papers & Articles|0 Comments

Norway Water Crisis: Thousands Fall Ill On Island Near Bergen

Following up from my recent email on ‘Common themes contributing to recent drinking water disease outbreaks in affluent nations’, I’ve come across two additional Campylobacter outbreaks where, in one case, thousands were sickened and some deaths were reported. One was in Askøy near Bergen, Norway in June 2019 and appears to have run its course now.

Common themes contributing to recent drinking water disease outbreaks in affluent nations

Following up from articles and books on disease outbreaks the Hrudey’s have published another timely article on the same theme. As we have been observing in the research world we are now educating students who have not heard of the Walkerton outbreak in 2000 (or were born since then!). The study authors report that 24 drinking-waterborne disease outbreaks in affluent nations have occurred since then, pointing to the recent campylobacteriosis outbreak with 5,500 cases and four fatalities.

Public consultation on aluminum in drinking water

A document entitled “Aluminum in drinking water: Guideline technical document for consultation” has been posted on Health Canada’s website. A new health-based guideline (MAC) of 2.9 mg/L is being proposed for aluminum for the first time.

By |2019-08-01T14:25:33-04:00July 2nd, 2019|Drinking Water, Papers & Articles|0 Comments

Statement from the State of Michigan Attorney General Dana Nessel

I’ve seen some news reports that prosecutors have dismissed all charges in the Flint water crisis investigation (recall that there were two issues, lead which was the focus, but also Legionnaires disease which was not considered in the original investigation)...

Efficacy of Flushing and Chlorination in Removing Microorganisms from a Pilot Drinking Water Distribution System

There are several best practices (and guidelines and regulations) for flushing and ‘disinfecting’ drinking water distribution piping following installation or repair (e.g. AWWA Standard C651-05 Disinfecting Water Mains, and the Watermain Disinfection Procedure in Ontario)...