Blackburn Wastewater Treatment Plant Upgrade Study
Blackburn Wastewater Treatment Plant Upgrade Study
Blackburn Wastewater Treatment Plant Upgrade Study
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Date: 23 December 1999<br />
File: 1174-01-01<br />
Reid Crowther & Partners Ltd.<br />
Consulting Engineers<br />
300, 41 70 Still Creek Drive<br />
Burnaby, British Columbia<br />
V5C 6C6<br />
Attention:<br />
Mr. Andv North. P.Ena.<br />
Dear Andy,<br />
AS recently requested by Les Nemeth. P.Eng.. please find attached our flow calculatio'n - ,<br />
,<br />
...<br />
spreadsheet showing the capacity of the existing sanitary sewer mains from the ~e~ional , ' -<br />
. .<br />
Correctional Centre to tlie discharge into the 600mm diameter City trunk sanitary . .<br />
. .<br />
. . . .<br />
sewermain on Taylor Drive. -<br />
. .<br />
. ........<br />
. .<br />
. . .. -<br />
,-<br />
..<br />
The estimated future peak PU~P~IOW<br />
rate.from the Mackus Road sewage lift station is -<br />
.....<br />
..- .<br />
50 Lls (0.05 mals). The section :of existing 200mm diameter sewer main from the I' ~ .,<br />
. ~<br />
discharge point of the 200mm diameter syphon, at MH KL23a to the intersection'of the ......<br />
525 mm diameter main at Birch Street, will need to be upgradbd,to a 300mm diameter . . ,<br />
pipe at a-minimum. grade of 0.3% to handle the futire pumped peak flows'of ':
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