THE CORPORATION OF THE CITY OF PORT COQUITLAM

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7. %In a normal winter storm there is very little additional runoff as a result of the C.P.R. development. The water runs off the paved surface quicker hut the amount of rainfall which eventually reaches the ditch system during a long rainfall is the same since the ground is saturated anyway.

8. The number to call for emergency service after working hours is listed in the telephone book and is 526-3611. : However, both of our new dyke pumping stations are fitted with . an alarm system Connected to our firehall se that we would have early notification of a malfunction.

9. The design criteria for the new pumping system ultimately is to be able to remove the total runoff from a one in ten year summer storm during periods when the Pitt River is in freshet condition. Fer a winter storm the drainage system depends on floodgates to help remove the majority of the water. The floodgates are designed to be able to remove the water from a one in ten year winter storm over a period of 24 hours. That assumes that the floodgates would open for at least 5 or 6 hours

‘ at least once during the 24 hour cycle. Even when complete the pumping system is not expected to be able to handle more than a fraction of the total runoff from a winter storm.

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10. The Provisional Budget contains an item of $46,000 for major ditch Cleaning plus $55,000 for normal drainage ditch cleaning. Some of this would have to be spent in other areas of the City.

F.E. Peters, P.Eng.> City Engineer

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c.c. L.D. Pollock, City Administrator

R.A. Freeman, City Clerk