Savona Water Master Plan Thompson Nicola Regional District April 2018 Project No. 379-491 201-2079 Falcon Rd | Kamloops BC | V2C 4J2 | www.true.bc.ca | tel 250.828.0881 | fax 250.828.0717 Distribution List # of Hard Copies PDF Required Association / Company Name 1 1 TNRD Revision Log Revision # Revised by Date Issue / Revision Description 1 R Wall Jan 22, 2018 First Draft 2 R Wall Apr 20, 2018 Final Report Submission Report Prepared By: Report Reviewed By: Rob Wall, P. Eng. Dave Underwood, P. Eng. Project Engineer Project Engineer R:\Clients\300-399\379\379-491\05 Reports\379-491-TNRD-Savona Water Master Plan-April 2018.docx SAVONA WATER MASTER PLAN THOMPSON NICOLA REGIONAL DISTRICT – APRIL 2018 Table of Contents Executive Summary.................................................................................................................vi 1.0 Background ....................................................................................................................1 1.1 Water Demands........................................................................................................... 3 1.2 Water Quality Analysis................................................................................................. 5 1.2.1 Source ...................................................................................................................5 1.2.2 Comprehensive Water Testing...............................................................................5 1.2.3 Turbidity.................................................................................................................6 1.2.4 Bacteriological Testing...........................................................................................7 1.3 Regulatory Agency Certificates and Approvals ............................................................ 9 1.3.1 Interior Health ........................................................................................................9 1.3.2 Water Licence........................................................................................................9 2.0 Capacity and Condition of Water Intake .....................................................................10 2.1 Kamloops Lake Intake ................................................................................................10 3.0 Treatment / Disinfection...............................................................................................17 3.1 Disinfection System ....................................................................................................17 4.0 Controls and Electrical ................................................................................................19 5.0 Water Storage Reservoir..............................................................................................21 6.0 Water Distribution System...........................................................................................24 7.0 Rights of Way ...............................................................................................................38 8.0 Improvement Plan ........................................................................................................39 8.1 General.......................................................................................................................39 8.2 Water Collection .........................................................................................................39 8.2.1 Future Intake Pump .............................................................................................39 8.3 High Lift Pump Station ................................................................................................40 8.4 Treatment ...................................................................................................................41 8.4.1 Filtration Deferment (UV Disinfection)..................................................................41 8.4.2 Upgrade to Water Treatment by Filtration ............................................................43 8.5 Water Distribution System...........................................................................................51 8.5.1 Distribution Improvements ...................................................................................51 SAVONA WATER MASTER PLAN i THOMPSON NICOLA REGIONAL DISTRICT – APRIL 2018 8.5.2 Dedicated Main to Reservoir................................................................................55 8.5.3 Decommission Ballou Road Reservoir.................................................................57 8.5.4 Water Meters .......................................................................................................58 8.6 Planning......................................................................................................................60 8.6.1 Source to Tap Assessment..................................................................................60 8.6.2 Emergency Response Plan..................................................................................60 8.6.3 Water Conservation Plan Implementation ............................................................61 9.0 Cost Summary..............................................................................................................62 APPENDICES Appendix A – Comprehensive Water Analysis Appendix B – Permit To Operate Appendix C – Water Modeling Results SAVONA WATER MASTER PLAN ii THOMPSON NICOLA REGIONAL DISTRICT – APRIL 2018 List of Tables Table 1-1: Savona Community Growth ...................................................................................... 4 Table 1-2: Summary of Bacteriological Tests By Interior Health................................................. 7 Table 6-1: Existing Watermains ................................................................................................25 Table 6-2: Existing Watermain Appurtenances..........................................................................26 Table 6-3: Calculated Water Pressure vs Target Water Pressure .............................................35 Table 6-4: Observed Hydrant Flows Prior to 2017 System Upgrade vs Modelled Flows ...........35 Table 8-1: Estimated Intake Improvement Cost.........................................................................39 Table 8-2: Estimated Chemical Storage Room Cost .................................................................40 Table 8-3: Estimated Treatment Costs – UV Disinfection..........................................................42 Table 8-4: Slow Sand Filters .....................................................................................................43 Table 8-5: Rapid Gravity Filters – Direct Filtration.....................................................................44 Table 8-6: Rapid Gravity Filters –Package Sedimentation / Rapid Gravity Filtration..................44 Table 8-7: Membrane Filters .....................................................................................................45 Table 8-8: Estimated Treatment Cost – Membrane Filtration Option.........................................47 Table 8-9: Water Distribution System Improvement Costs ........................................................54 Table 8-10: Estimated Cost to Decommission Ballou Road Reservoir ......................................57 Table 8-11: Estimated Water Metering Costs............................................................................59 Table 9-1: Intake and Treatment Upgrades...............................................................................62 Table 9-2: General Water Improvements ..................................................................................62 Table 9-3: Distribution System Improvements...........................................................................63 List of Figures Figure 1-1: Location Plan ........................................................................................................... 2 Figure 1-2: Flow Trend - Savona Community Water System...................................................... 3 Figure 1-3: Turbidity Trend - Savona Community Water System................................................ 6 Figure 2-1: Low Lift Pumphouse ...............................................................................................11 Figure 2-2: Pipe Leading to Intake ............................................................................................11 Figure 2-3: Pipe Leading to High Lift Pumphouse (Spare Intake Pump and Motor Below) ........12 Figure 2-4: Emergency Intake Skid ...........................................................................................13 Figure 2-5: High Lift Pumphouse...............................................................................................14 Figure 2-6: High Lift Pumps.......................................................................................................14 Figure 2-7: Savona Low Lift Pump System Head Curve............................................................15 Figure 3-1: Sodium Hypochlorite Storage and Dosing System ..................................................17 Figure 4-1: Instrument Panel in High Lift Pumphouse ...............................................................20 Figure 5-1: New Savona Reservoir Under Construction (2017).................................................21 Figure 6-1: Watermains By Size................................................................................................27