BACKGROUND / DISCUSSION
Brookdale Avenue North is defined as the immediate lands fronting along Brookdale Avenue from Tollgate Road to Cornwall Centre Road. Since the Brookdale Avenue North Corridor is not currently serviced with sanitary sewer, limited development has occurred in this area.
The preliminary design for the servicing of the Brookdale Avenue North Corridor completed by City staff required that two pumping stations and a dual 250mm diameter (Ø) forcemain be built to convey the sanitary flows from the Brookdale Avenue North Corridor to the 1950mm Ø combined trunk sewer located at the intersection of Brookdale Avenue and Ninth Street West. The combined trunk sewer was determined to have sufficient capacity to support the proposed commercial development along the Brookdale Avenue North Corridor. Based on the preliminary design, the two pumping stations would be located adjacent to the Highway 401 and CNR corridors.
In order to 'fully' service (both watermain and sanitary sewer) the Brookdale Avenue North Corridor, the following remains to be constructed: two pumping stations located adjacent to the Highway 401 and CNR corridors, gravity sanitary sewer along the Brookdale Avenue North Corridor to both proposed pumping stations, dual 250mm Ø forcemain from the proposed pumping stations to the proposed sanitary sewer south of the South Branch of the Raisin River (SBRR) and to the existing forcemain installed at Tollgate Road, and dual 250mm Ø forcemain from the existing forcemain at Fourteenth Street West to connect to the 1950mm Ø combined trunk sewer located on Brookdale Avenue at Ninth Street West.
As presented to Council at the December 11, 2017 meeting, the project costs will be recovered from the benefitting property owners via Municipal Act (MA) Capital Charges and Area-Specific DC.
Administration prepared and issued an RFP for Consulting Engineering and Construction Administration Services related to the Brookdale Avenue North Sanitary Sewer Extension project which was awarded to EVB Engineering (EVB) at the February 25, 2019, meeting.
The scope of work included in the RFP is as follows:
As a component of the RFP, EVB has completed the EA (subject to Council's final approval) for the extension of sanitary sewer to service the Brookdale Avenue North Corridor. The EA evaluated five possible Servicing Alternatives:
- Detailed Design Services for the Sanitary Sewer, Sanitary Forcemain and Sanitary Pumping Stations;
- Detailed Design Report(s);
- Schedule B Municipal Class EA;
- Geotechnical Investigation Report(s);
- Tendering Services;
- Contract Administration;
- Construction Supervision;
- Materials Testing;
- Post-Construction Services; and
- Public/Landowner Consultation.
The City and EVB published a Notice of Study Commencement for the Brookdale Avenue North EA on April 5, 2019 and subsequently held a Public Information Centre (PIC) with the property owners on April 16, 2019. The Notice of Study Commencement and the presentation boards used at the PIC are attached to the report. As noted above, EVB has completed the EA Project File which is attached to report for review. Additionally, the EVB presentation to Council summarizing the EA for the project is also attached to the report as well.
- Alternative #1 - Do Nothing
- Alternative #2 - One Pumping Station - At Tollgate Road
- Alternative #3 - One Pumping Station - North of CN Rail (CNR)
- Alternative #4 - Two Pumping Stations - North of Hwy. 401 & North of CNR
- Alternative #5 - Two Pumping Stations - North of SBRR & North of CNR
As indicated in the presentation and the Project File, EVB has evaluated the five alternatives noted above and has determined that Alternative #3 is the 'Technically Preferred Alternative'. Alternative #3 involves the construction of a single sewage pumping station located north of the CNR. Please refer to the attached pumping station location sketches for Alternative #3. As noted in the evaluation of alternatives in the presentation and Project File, servicing Brookdale Avenue North with only one pumping station located north of the CNR is the preferred alternative as it has the lowest capital cost of all alternatives as well as lower operation and maintenance costs compared to the two pumping station options. Additionally, the pumping station would be located out of sight from the roadway due to the Brookdale Avenue at CNR Overpass. Alternative #3 does require that land be acquired north of CNR for the proposed pumping station.
EVB has determined that only one pumping station is needed to service the Brookdale Avenue North Corridor and that the pumping station originally planned for north of Highway 401 can be eliminated. Please refer to the attached site plans for the proposed pumping station which also identify the proposed property acquisition. The proposed property acquisition was reviewed at the In-Camera Council Meeting on May 13, 2019.
A By-law to authorize the City to purchase the parcel of land for the proposed pumping station and to authorize the Mayor and Clerk to sign all documentation to complete the transaction has been included in the May 27, 2019, Agenda. If Council does not endorse the EA, the By-Law can be removed from the Agenda.
If Council endorses the EA, a Notice of Study Completion will be filed on May 28, 2019, following the Council meeting. The EA will be posted on the City's website at the following link:https://www.cornwall.ca/en/live-here/engineering-notices-and-reports.aspx. The EA Project File will be placed on public record for comments for 30 calendar days. Following the completion of the EA, EVB and the City will continue to the detailed design and construction phases of the project.