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 transferring Blackbum sewage flows to Lansdowne Road WWTP must be evaluated. Ammonia toxicity issue addressed at Lansdowne Road WWTP. 4.3.2 Design Information Population ADWF, m3/d PWWF, m3/d Pipework Gravity sewermain from the existing Blackbum WWTP site to the Regional Correctional Centre tie-in Diameter, mm Length, m Sanitary sewer syphon from Yellowhead Bridge connecting to downtown sewage collection system Diameter, rnrn Length, m Gravity sewer to intersection of 15' Ave. and Taylor Drive; construct new manhole Diameter, mm Length, m Gravity sewer along 1 5 Ave. ~ from Taylor Drive to Birch St.; connect to 525 diameter sewer Diameter, rnm Length, m Pumpstation Upgrade Mackus Road PS for PWWF capacity MisceIlaneous Modifications to Blackbum WWTP to operate as storage basin 4.3.3 Cost Estimate Pipework 200 syphon, $200/m 300 gravity sewer Blackbum, $160/m Downtown, $250/m Pumpstation Mackus Road PS, LS
Section 4.0 - Blackburn Treatment Options Miscellaneous Blackbum WWTP modifications to allow lagoons to operate as storage basins, LS 100,000 Subtotat 1,165,000 Contingencies (1 5 percent) EngineeringlAdminisWion (20 percent) GST (3 percent) TOTAL 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*ADWF would be transferred &om the Blackburn sewage collection area for treatment at the Lansdowne Road WWTP. The existing sewage lagoons would be used only to treat wet weather flows > 2*AI)WF. A schematic representation of this option is presented in Figure 4.4. An It1 reduction program is to be i~tiated 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 purnpstation constmcted 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 BODjtTSS loadings fkom the Blackbum sewage collection area. All wet weather flow > 2*ADWF will be pumped to the existing Blackbum WWTP for treatment. Key activities or capitat works associated with this option are as follows: Implement VI reduction program. Upgrade Mackus Road purnpstation to handle project4 increased flows. All 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
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:
Page 12 and 13:
Page 14 and 15:
Section 1.0 - Project Background an
Page 16 and 17:
Page 18 and 19: Section 1.0 -Project Background and
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 and 62: Section 4.0 - Blackbum Treatment Op
Page 65 and 66: Section 4.0 - Blackburn Treatment O
Page 67: 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 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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Blackburn Wastewater Treatment Plant Upgrade Study

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