Blackburn Wastewater Treatment Plant Upgrade Study

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Section 4.0 - Blackbum Treatment Options Condition and capacity of the existing Mackus Road pumpstation must be evaluated. Details for pipeline routes for transfening Blackbum sewage flows to Lansdowne Road WWTP must be evaluated. Ammonia toxicity issue addressed at Lansdowne Road WWTP. 43.2 Design Information Population ADWF, m3/d PWWF, m3/d Pipework Gravity sewermain hm the existing Blackbum WWTP site to the Regional Correctional Centre tie-in Diameter, mm Length, m Sanitary sewer syphon hm Yellowhead Bridge connecting to downtown sewage collection system Diameter, mm Length, m Gravity sewer to intersection of 15" Ave. and Taylor Drive; construct new manhole Diameter, mm Length, m Gravity sewer along lSfh ~ ve. from Taylor Drive to Birch St.; connect to 525 diameter sewer Diameter, mm Length, m Pompstation UpgradeMackusRoadPSforPWWFcapacity Miscellaneous Modifications to Blackbum WWTP to operate as storage basin 43.3 Cost Estimate Pipework 200 syphon, S2OOJm 300 gravity sewer Blackbum, $160/m Downtown, S250/m Pumpstation Mackus Road PS, LS
Section 4.0 - Blackburn Treatment Options Miscellaneous Blackburn WWTP modifications to allow lagoons to operate as storage basins, LS 100,000 Subtotal 1,165,000 Contingencies (15 percent) 175,000 EngineerindAdministration (20 percent) 235,000 GST (3 percent) 35,000 TOTAL 1,610,000 4.4 OPTION 4 - TRANSFER ALL FLOW < 2*ADWF TO LANSDOWNE ROAD WWTP AND USE THE EXISTING BLACKBURN WWTP TO TREAT FLOWS > 2*ADWF 4.4.1 Outline In this option all flows up to 2*ADW would be transferred &om the Blackbum sewage collection area for treatment at the Lansdowne Road WWTP. The existing sewage lagoons would be used only to treat wet weather flows > 2*ADWF. A schematic representation of this option is presented in Figure 4.4. An yI reduction program is to be initiated and completed to reduce the volume of wastewater being treated in the lagoons during wet weather and snowmelt conditions. The existing Mackus Road pumpstation would be upgraded and a new pumpstation constructed to handle excess flow >2*ADWF. It is believed that the Lansdowne Road WWTP has sufficient capacity to handle the projected future 2*ADWF hydraulic and BODnSS loadings f7om the Blackburn sewage collection area. All wet weather flow > 2*ADWF will be pumped to the existing Blackbum WWTP for treatment. Key activities or capital works associated with this option are as follows: Implement III reduction program. Upgrade Mackus Road pumpstation to handle projected increased flows. Ail dry weather flows < 2*ADWF are to be pumped to Lansdowne Road WWTP; all wet weather flows > 2*ADWF are to be pumped to Blackburn WWTP. Construct trunk gravity sewer and/or forcemain to transfer all flows
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BLACKBURN WASTEWATER TREATMENT PLAN
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Table of Contents SECTION TITLE PAG
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SECTION 1 STUDY BACKGROUND AND OBJE
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Section 1.0 -Project Background and
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Section 1.0 - Project Background an
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City of Prince George - Decision Wo
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City of Prince George - Decision Wo
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MINUTES OF MEETING PR~ECT NAME: Bla
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Blackburn WWTP Treatment Options Op
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Nores. Annual O&M cost for Blackbum
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Blackbum WWTP Treatment Options Opt
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APPENDIX A STANTEC CONSULTING LTD.
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5.0 CONCLUSIONS I '\ -. 5.1 RESULTS
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CITY OF PRINCE GEORGE Forcemain fro
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Section 6.0 -Recommended Option Key
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Section 6.0 -Recommended Option Com
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SECTION 6.0 RECOMMENDED OPTION 6.1
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SECTION 5.0 EVALUATION OF OPTIONS 5
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Section 5.0 -Evaluation of Options
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Page 53 and 54: 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 and 62: 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 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: 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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Blackburn Wastewater Treatment Plant Upgrade Study

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