Sam Ziemann From - Region of Waterloo

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August 26, 2011Sam ZiemannPage 12 of 12Reference: Fluid Transient Analysis for Strange Street Raw Water Supply System – Draft TechnicalMemorandum• Transient control strategies for the SSRWS should focus on applications thatprotect against downsurge and column separation, as well as pump controlalternatives to reduce the transient pressure envelope during pump start-up andshut-down.• Consider installation of a pressure sustaining valve on the Strange StreetReservoir fill line with a hydraulic grade setting of 365 m to maintain positivepressure within the raw water supply system during normal well start-up andshut-down.• Conduct field testing to confirm the effectiveness of the selected control strategyat limiting pressures within the raw water supply system.We trust the above analysis provides the information needed to assist in thedevelopment of alternative design concepts. If you should have any questions, pleasedo not hesitate to contact us.STANTEC CONSULTING SERVICES INC.Michael Georgalas, PEAssociate, Environmental Infrastructuremichael.georgalas@stantec.comAttachment: Figures 1-10c. John Take
Elevation (m)K18/K19 Well House to Strange St. Reservoir - Current Conditions394392390388386384382380Pressure Flow OnlyPressure and Gravity Flow378376374372370368366364362360358356354352350348346344Strange Street Reservoir342340338336Pressure Sustaining Valve334332330328326K18/K19 Well House32432232002004006008001,0001,2001,4001,600Distance (m)1,8002,0002,2002,4002,6002,8003,0003,200Existing - All Wells ON - Hydraulic GradeExisting - All Wells ON - ElevationClient/ProjectStrange Street Water Supply SystemTransient AnalysisFigure No.1TitleExisting Water Supply SystemHydraulic Profile Steady-state Conditions
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Page 14 and 15: Pressure (kPa)K18/K19 Well House to
Page 16 and 17: Figure 4a - Existing ConditionsPump
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Page 20 and 21: Figure 8a - Existing ConditionsWell
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Page 28 and 29: Napier-Reid Ltd.Pressure FiltersSal
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HYDROGEOLOGICAL ASSESSMENTSTRANGE S
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25Pumping Rate20Pumping Rate (L/s)1
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TABLE 2SUMMARY OF GROUNDWATER ANALY
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CALCULATION OF SPECIFIC CAPACITY FR
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March 2, 2011Reference: 006-189Stan
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TABLE 1REGIONAL MUNICIPALITY OF WAT
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July 23, 2010Lisa Lachuta, P.Eng.Pa
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TECHNICAL MEMORANDUM A1 -STRANGE ST
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TECHNICAL MEMORANDUM A1 -STRANGE ST
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TABLE 1SUMMARY OF GROUNDWATER ANALY
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Sam Ziemann From - Region of Waterloo

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