Intro

A dozen utilities were carefully selected for this work. They represent a broad array of disinfectant types, water qualities and treatment sequences. In most cases, each utility was sampled only once (1-2 day duration), however in a couple of cases two separate events were conducted. For information on each click on the hypertext links.

 

 

Utility	Back-ground	1st set	2nd set	Pre-Disinfectant	Final Disinfectant
Contra Costa, CA	draft	19 Jan 2011		Ozone	Chloramine
Pinellas County, FL	draft	7 Jun 2011	Aug 2011	Chlorine	Chloramine (Chlorine)
Wyoming, MI	draft	9 Aug 2011		Chlorine	Chlorine
Monroe, MI	draft	11 Oct 2011		Ozone	Chlorine
San Francisco, CA	page	19 Jan 2012	10 Apr 2012	Chlorine	Chloramine
Charleston, SC	page	28 Feb 2012		Chlorine Dioxide	Chloramine
Ann Arbor, MI	page	4 Apr 2012		Ozone	Chloramine
EBMUD, CA	page	25 Apr 2012		Chlorine	Chloramine
Cincinnati, OH	page	14 May 2012			Chlorine
Minneapolis, MN	page	22 May 2012		Chloramine	Chloramine
Knoxville, TN	draft	27 June 2012		Chlorine Dioxide	Chlorine

 

 

 

This work being conducted by UMass and at Yale University (in collaboration with CDM Consulting Engineers) focuses on developing models and new knowledge that helps in the prediction and understanding of key non-regulated DBPs; their expected concentrations, their degradation pathways, ways to accelerate their degradation, ways to minimize their formation.

Principal Investigators

• Dave Reckhow and Chul Park at UMass, and William Mitch at Yale

Researchers

• UMass team: Chen Wu (MS Student), Arianne Bazilio (MS Student), Varun Srinivasan (MS Student), Larry Kramer (Res Assoc)