Investigation of Basement Flooding Lawrie Road Service Area
(Ajax)
Class Environmental Assessment
NOTICE OF STUDY COMPLETION
WORKS DEPARTMENT
PUBLIC NOTICE
February 16, 2010
The Regional Municipality of Durham has completed a Municipal Class Environmental Assessment (Class
EA) Study to determine the preferred approach to alleviate recurring basement flooding in the study area
during heavy rainfall events. The Lawrie Road sanitary service area is roughly 80 hectares in size on either
side of Lawrie Road, south of Westney Road to Lake Ontario, including the Lakeshore Sanitary Pumping
Station (SPS).
The preferred solution includes:
 Routine inspection of sanitary sewer maintenance hole cover seals.
 Continuing to encourage residents to install backwater valves, sump pumps and disconnect
downspouts.
 A new “express” sanitary sewer (no local connections) to be constructed in parallel to the existing
Lawrie Road sanitary sewer from Clover Ridge Drive to Lake Driveway outside of the Lakeshore SPS.
 The sanitary sewer from Lake Driveway into the pumping station is to be replaced by a larger sanitary
sewer.
 The construction of two flow diversion structures. The first is to be located at Clover Ridge and Lawrie
Road to divert excess flow to the new “express” sewer. The second is located on Lake Driveway
outside the Lakeshore SPS to divert excess flow to an underground off-line storage facility.
 Construction of an underground off-line storage facility located outside of the Lakeshore SPS.
Regional Municipality of Durham Works Department
Rossland
Road with
East,
WhitbyB ON
6A3Class Environmental
The study has been605
conducted
in accordance
Schedule
of theL1N
Municipal
Assessment (Year 2000
&
amended
year
2007),
under
the
Ontario
Environmental
Telephone (905) 668 -7711 or 1-800-372-1102Assessment Act. An
Environmental Study Report (ESR) has been prepared. The report details the problem statement, the
evaluation of alternatives and the www.region.durham.on.ca
preferred solutions, as well as the public and agency consultation
conducted during the study. The report is available for public review during business hours at the following
locations.
The Regional Municipality of Durham
Clerk’s Department, Level 1
605 Rossland Rd.E.
Whitby, Ontario L1N 6A3
Ajax Public Library
65 Harwood Ave. S.
Ajax, Ontario L1S 2H9
Town of Ajax Municipal Offices
Clerk’s Department
65 Harwood Ave. S.
Ajax, Ontario L1S 2H9
The public review period will commence on February 19, 2010. Interested persons may provide written
comments to the Regional representative listed below within the review period.
Kevin Wilson, P. Eng, Project Manager
The Regional Municipality of Durham
905-668-7711 ext. 3565
kevin.wilson@durham.ca
If concerns regarding the project cannot be resolved in discussion with the Region, a person or party may
request the Minister of the Environment to issue an order for the project to comply with Part II of the
Environmental Assessment Act (referred to as a Part II Order), which addresses Individual Environmental
Assessments. Requests must be received by the Minister by March 19, 2010 at the address below, with a
copy sent to the Regional Clerk and the Region’s Project Manager. If there are no requests by this date, the
Region may proceed with design and construction.
The Honourable John Gerretsen
Minister of the Environment
Government of Ontario
P.M. Madill, A.M.C.T, CMM I, Regional Clerk
Clerk’s Department
The Regional Municipality of Durham
135 St. Clair Ave. W., Floor 12
Toronto, Ontario M4V 1P5
605 Rossland Rd. E.
Whitby, Ontario L1N 6A3
Thank you for your participation in this study.
The Regional Municipality of Durham Works Department
605 Rossland Rd. E., Whitby ON L1N 6A3
Telephone 905-668-7711 or 1-800-372-1102
www.durham.ca