Blackburn Wastewater Treatment Plant Upgrade Study

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Section 4.0 - Blackbum Treatment Ovtions Diameter, mrn 300 Length, m 100 Gravity sewer along l5Ih ~ ve. from Taylor Drive to Birch Street; connect to 525 diameter sewer Diameter, mm 300 Length, m 180 Pumpstation Upgrade Mackus Road PS for PWWF capacity Supply and install PS at existing Blackbum WWTP site to senice residence along Graves and Foreman Roads; capable of pumping 10 percent of PWWF. Miscellaneous Restordlandscape existing Blackbum WWTP site. 4.1.3 Cost Estimate Pipework 1 5 0 forcemain, S 1 00/m 200 forcernain, $1 8O/m 200 syphon, $200/m 300 gravity sewer Blackburn, $1 60/m Downtown, $250/m Pumpstation Mach Road PS, LS Foreman Road PS, LS Miscellaneous Blackbum WWTP site restoration/lmdscaping, LS Subtotal Contingencies (15 percent) EngineeringIAdministration (20 percent) GST (3 percent) TOTAL 4.2 OPTION 2 - DECOMMISSION EXISTING BLACKBURN WVTP AND ROUTE ALL FLOW TO LANSDOWNE ROAD WWTP VIA GRAVITY SEWER CONNECTION 4.2.1 Outline In this option the existing sewage lagoons would be decommissioned and all flow transferred for treatment at the Lansdowne Road WWTP via a new trunk gravity sewer. A schematic representation of this option is presented in Figure
Section 4.0 - Blackbum Treatment Options 4.2. An UI reduction program is to be initiated and completed to reduce the volume of wastewater being transfmed during wet weather and snowmelt conditions. The existing Mackus Road pumpstation would be upgraded. It is believed that the Lansdowne Road WWTP has sufficient capacity to handle the projected future hydraulic and BOD5tTSS loadings from the Blackbum sewage collection area. Key activities or capital works associated with this option are as follows: Implement and complete VI reduction program. Decommission lagoons and rehabilitate site for other use. Upgrade Mackus Road pu&pstation to handle projected increased flows. Construct trunk gravity sewer to transfer all flows from Blackburn sewerage area to Lansdowne Road WWTP. Upgrade downtown sewage collection pipework to handle increased flows from Blackburn sewerage area. Key technical issues associated with this option are as follows: Extent to which the If1 reduction program is able to reduce peak wet weather flows must be evaluated. City need operate only one wastewater treatment and disposal facility. Major capital works needed to transfer flows to Lansdowne Road WWTP. Condition and capacity of the existing Mackus Road pumpstation must be evaluated. Details for pipeline routes for transferring Blackburn sewage flows to Lansdowne Road WWTP must be evaluated. Ammonia toxicity issue addressed at Lansdowne Road WWTP. 4.2.2 Design Information Population ADWF, m3/d PWWF, m3/d
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BLACKBURN WASTEWATER TREATMENT PLAN
Page 4 and 5:
Table of Contents SECTION TITLE PAG
Page 6 and 7:
SECTION 1 STUDY BACKGROUND AND OBJE
Page 8 and 9:
Section 1.0 -Project Background and
Page 10 and 11:
Section 1.0 -Project Background and
Page 12 and 13: Section 1.0 -Project Background and
Page 14 and 15: Section 1.0 - Project Background an
Page 20 and 21: City of Prince George - Decision Wo
Page 22 and 23: City of Prince George - Decision Wo
Page 24 and 25: MINUTES OF MEETING PR~ECT NAME: Bla
Page 27 and 28: Blackburn WWTP Treatment Options Op
Page 29 and 30: Nores. Annual O&M cost for Blackbum
Page 31: Blackbum WWTP Treatment Options Opt
Page 35 and 36: APPENDIX A STANTEC CONSULTING LTD.
Page 37 and 38: 5.0 CONCLUSIONS I '\ -. 5.1 RESULTS
Page 39 and 40: CITY OF PRINCE GEORGE Forcemain fro
Page 41 and 42: Section 6.0 -Recommended Option Key
Page 43 and 44: Section 6.0 -Recommended Option Com
Page 45 and 46: SECTION 6.0 RECOMMENDED OPTION 6.1
Page 47 and 48: SECTION 5.0 EVALUATION OF OPTIONS 5
Page 49 and 50: Section 5.0 -Evaluation of Options
Page 55 and 56: Section 5.0 - Evahation of Options
Page 57 and 58: Section 3.0 - Evaluation of Options
Page 59 and 60: SECTION 4.0 BLACKBURN TREATMENT OPT
Page 61: Section 4.0 - Blackbum Treatment Op
Page 65 and 66: Section 4.0 - Blackburn Treatment O
Page 67 and 68: Initiate llt reduction program and
Page 71 and 72: Section 4.0 - Blackbm Treatment Opt
Page 73 and 74: Section 4.0 - Blackbum Treatment Op
Page 77 and 78: CITY OF PRINCE GEORGE Scale= $:I00
Page 83 and 84: :ITY Of PRINCE GEORGE Existing Chlo
Page 93 and 94: SECTION 4.0 BLACKBURN TREATMENT OPT
Page 101 and 102: Initiate Ill reduction program and
Page 105 and 106: SECTION 3.0 AUDIT OF EXISTING FACIL
Page 107 and 108: Section 3.0 -Audit of exist in^ Fac
Page 109 and 110: Section 3.0 -Audit of Existing Faci
Page 111 and 112: SECTION 2.0 III MITIGATION MEASURES
Page 113 and 114:
Section 2.0 - UI Mitigation Measure
Page 115 and 116:
APPENDIX E FLOW CALCULATIONS FOR SE
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