Item - 2011.PW3.5

Tracking Status

PW3.5 - Peer Review Findings of the Ashbridges Bay Treatment Plant Effluent Class Environmental Assessment Study

Decision Type:
ACTION
Status:
Amended
Wards:
All

City Council Decision

City Council on May 17, 18 and 19, 2011, adopted the following:

 

1.         City Council receive Attachment 1 to the report (April 11, 2011) from the General Manager, Toronto Water, entited "Executive Summary of the peer review prepared by Associated Engineering of the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report".

 

2.         City Council direct staff to implement Alternative 2 (the use of UV for disinfection in secondary effluent streams and the use of liquid sodium bisulphite for disinfection in primary effluent streams) as identified in the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report prepared by AECOM, dated February 2010, for the City to meet all current regulations including the Canadian Environmental Protection Act.

Background Information (Committee)

(April 11, 2011) Report from the General Manager, Toronto Water on Peer Review Findings of the Ashbridges Bay Treatment Plant Effluent Class Environmental Assessment Study
https://www.toronto.ca/legdocs/mmis/2011/pw/bgrd/backgroundfile-37359.pdf
(April 11, 2011) Attachment - Executive Summary - Peer Review Findings of the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study
https://www.toronto.ca/legdocs/mmis/2011/pw/bgrd/backgroundfile-37360.pdf

Communications (Committee)

(April 25, 2011) E-mail from David Done (PW.New.PW3.5.1)

Communications (City Council)

(May 17, 2011) Letter from Karen Buck, Co-Chair, Ashbridges Bay Treatment Plant Neighbourhood Liaison Committee (CC.New.PW3.5.2)

Motions (City Council)

1 - Motion to Amend Item moved by Councillor Gord Perks (Carried)

That Recommendation 2 be deleted and replaced with the following

 

2.         City Council direct staff to implement Alternative 2 (the use of UV for disinfection in secondary effluent streams and the use of liquid sodium bisulphite for disinfection in primary effluent streams) as identified in the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report prepared by AECOM, dated February 2010, for the City to meet all current regulations including the Canadian Environmental Protection Act.

Vote (Amend Item) May-19-2011 4:29 PM

Result: Carried Majority Required - PW3.5 - Perks - motion 1
Total members that voted Yes: 18 Members that voted Yes are Maria Augimeri, Michelle Berardinetti, Shelley Carroll, Raymond Cho, Janet Davis, Glenn De Baeremaeker, Sarah Doucette, John Filion, Paula Fletcher, Mary Fragedakis, Mike Layton, Josh Matlow, Mary-Margaret McMahon, Joe Mihevc, Gord Perks, Anthony Perruzza, Adam Vaughan, Kristyn Wong-Tam
Total members that voted No: 17 Members that voted No are Paul Ainslie, Ana Bail„o, Mike Del Grande, Frank Di Giorgio, Doug Ford, Rob Ford, Doug Holyday, Norman Kelly, Chin Lee, Giorgio Mammoliti, Peter Milczyn, Denzil Minnan-Wong, Frances Nunziata (Chair), Cesar Palacio, David Shiner, Karen Stintz, Michael Thompson
Total members that were Absent: 10 Members that were absent are Josh Colle, Gary Crawford, Vincent Crisanti, Mark Grimes, Gloria Lindsay Luby, Pam McConnell, Ron Moeser, John Parker, James Pasternak, Jaye Robinson

2 - Motion to Adopt Item as Amended (Carried)

Vote (Adopt Item as Amended) May-19-2011 4:31 PM

Result: Carried Majority Required - PW3.5 - Adopt the item as amended
Total members that voted Yes: 19 Members that voted Yes are Maria Augimeri, Michelle Berardinetti, Shelley Carroll, Raymond Cho, Janet Davis, Glenn De Baeremaeker, Sarah Doucette, John Filion, Paula Fletcher, Mary Fragedakis, Mike Layton, Chin Lee, Josh Matlow, Mary-Margaret McMahon, Joe Mihevc, Gord Perks, Anthony Perruzza, Adam Vaughan, Kristyn Wong-Tam
Total members that voted No: 17 Members that voted No are Paul Ainslie, Ana Bail„o, Vincent Crisanti, Mike Del Grande, Frank Di Giorgio, Doug Ford, Rob Ford, Doug Holyday, Norman Kelly, Giorgio Mammoliti, Peter Milczyn, Denzil Minnan-Wong, Frances Nunziata (Chair), Cesar Palacio, David Shiner, Karen Stintz, Michael Thompson
Total members that were Absent: 9 Members that were absent are Josh Colle, Gary Crawford, Mark Grimes, Gloria Lindsay Luby, Pam McConnell, Ron Moeser, John Parker, James Pasternak, Jaye Robinson

PW3.5 - Peer Review Findings of the Ashbridges Bay Treatment Plant Effluent Class Environmental Assessment Study

Decision Type:
ACTION
Status:
Adopted
Wards:
All

Committee Recommendations

The Public Works and Infrastructure Committee recommends that:

 

1.         City Council receive Attachment 1 to the report (April 11, 2011) from the General Manager, Toronto Water, entited "Executive Summary of the peer review prepared by Associated Engineering of the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report".

 

2.         City Council direct staff to implement Alternative 4 (the use of liquid sodium hypochlorite for disinfection and liquid sodium bisulphite for dechlorination of both the secondary and primary effluent streams) as identified in the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report prepared by AECOM, dated February 2010, for the City to meet all current regulations including the Canadian Environmental Protection Act.

Origin

(April 11, 2011) Report from the General Manager, Toronto Water

Summary

This report summarizes the results of a peer review conducted on the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report (“ABTP Disinfection EA Study”) prepared by AECOM, dated February 2010.  City Council directed staff to peer review the evaluation and scoring methodology used in selecting the preferred option for the EA Study.

 

The peer review was completed by Associated Engineering and focussed on the development of alternative disinfection strategies, the decision making process and the assigning of weights for costs, green house gas emissions and disinfection by-products.  The peer review also updated and verified the various costs and conducted a sensitivity analysis on those costs and the decision making process.

 

The peer review confirmed that the ABTP Disinfection EA Study correctly selected Alternative 4 (the use of liquid sodium hypochlorite for disinfection and liquid sodium bisulphite for dechlorination of both the secondary and primary effluent streams) as the top ranking disinfection strategy.

 

A copy of the Executive Summary of the Final Report can be found as Attachment 1 to this report.

Background Information

(April 11, 2011) Report from the General Manager, Toronto Water on Peer Review Findings of the Ashbridges Bay Treatment Plant Effluent Class Environmental Assessment Study
https://www.toronto.ca/legdocs/mmis/2011/pw/bgrd/backgroundfile-37359.pdf
(April 11, 2011) Attachment - Executive Summary - Peer Review Findings of the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study
https://www.toronto.ca/legdocs/mmis/2011/pw/bgrd/backgroundfile-37360.pdf

Communications

(April 25, 2011) E-mail from David Done (PW.New.PW3.5.1)

Speakers

Michael Rosenberg

Motions

1 - Motion to Amend Item moved by Councillor Gord Perks (Lost)

That Recommendation 2 in the report (April 11, 2011) from the General Manager, Toronto Water, be amended by replacing "Alternative 4" with "Alternative 2", so that the Recommendation reads as follows:

 

2.         Direct staff to implement Alternative 2 as identified in the Ashbridges Bay Treatment Plant Effluent Disinfection Class Environmental Assessment Study Report prepared by AECOM, dated February 2010, for the City to meet all current regulations including the Canadian Environmental Protection Act.


2 - Motion to Adopt Item moved by Councillor David Shiner (Carried)
Source: Toronto City Clerk at www.toronto.ca/council