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January 4, 199!

The Corporation of the
City of Port Coquitlam

-2-

2.0 SCOPE OF SERVICES

Associated Engineering understands the required tasks to complete the
project are as follows:

.1 Determine the 10 year return period high water level and duration
on the Coquitlam River at Maple Creek.

.2 Utilizing the Microcomputer Interactive Design cf Urban Jtorm Water
Systems (MIDUSS), determine the runoff volume generated by the

Maple Creek catchment area. This includes modeliing existing pipes
and open channels within the catchment area.

Determine the storage volume available within Maple Creek under
existing and fully developed conditions, and also determine the
storage volume/discharge relationship of flow into the Coquitlam
River.

Determine the pumping and/or storage requirements at Maple Creek
under existing and fully developed conditions.

Determine any deficiencies in the existing storm sewer network
system and provide recommendations for their improvement.

Prepare a report inciuding conclusions and recommendations on
pumping and/or storage requirements and on deficiencies In
existing storm sewer network system.

PROJECT BACKGROUND

Associated Engineering has been involved in the design and construction
of the Coquitlam River Dyking Project from the onset. _ This includes
work in the vicinity of Maple Creek and the Maple Creek Floodbox. With
the numerous dyking projects that Associated Engineering has been
involved with many internal drainage concerns have been addressed.
This includes the East Slough drainage in Port Coquitlam and Fenton
Slough in Pitt Meadows. Associated Engineering is familiar W h the
hydrology and runoff in Port Coquitlam and flow rates In the Cc itlam
River.

ASSOCIATED
ENGINEERING