Item - 2011.PW3.5
Tracking Status
- City Council adopted this item on May 17, 2011 with amendments.
- This item was considered by the Public Works and Infrastructure Committee on April 26, 2011 and adopted without amendment. It will be considered by City Council on May 17, 2011.
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)
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)
Communications (City Council)
Motions (City Council)
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 Bailão, 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 |
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 Bailão, 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
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
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
Speakers
Motions
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.