Public and Stakeholder Consultation Neighbourhood Information Meeting
Pigeon Lake Regional Wastewater Strategy and Master Plan
Welcome and Introduction of Steering Committee Members and Project Team
1
Meeting Purpose 1.
To provide an opportunity for property owners from the summer villages and counties to view the progress of the study to date
2.
To view and comment on the options under consideration.
3.
To provide and opportunity for questions and answers in a localized setting where individual issues and concerns can be addressed.
Project Commencement
Steering Committee Introduction Remarks
2
Project Objectives To develop a regional wastewater strategy and master plan for the Pigeon Lake watershed area as well as the Dorchester Development.
Complete a feasibility level economically based assessment that: • • • • •
defines logical project boundaries; provides conceptual cost estimates for options; provides recommended project phases; considers community growth requirements; and provides recommendations for a viable governance model(s).
Public Communications Overview Overview and Summary of Common Themes (15 completed) • Increasing concern for the environmental health of the lake • Unprecedented growth and increasing density • Status quo is not an option for most • Complete cost for the entire system and ongoing fees for maintenance and upkeep are important
3
Public Communications Overview Overview and Summary of Common Themes (con’t) • • •
Devise a funding solution that is fair to all – eg. user pay proportionally A recommended solution bought into by all is a necessity. If a mutually agreed solution with 100% buy-in is not achieved, mandate it and make all stakeholders contribute – including the provincial government.
Project Summary to Date • Project Need • Wastewater Management Options • Funding Opportunities • Planning Criteria • Master Plan Options • Next Steps and Input
4
Project Need • Urbanization of lakeshore areas • Private sewage systems costly and risky • Intensifying development • Changing property use – Seasonal to Permanent • Protect the lake • Act now rather then react later
Existing On-Site Systems • Holding Tanks - Truck Haul - Need Disposal Facility - Leakage?
• Disposal Fields -
Suitable Low Flow / Low Density Requires Suitable Soil Conditions Requires Maintenance Difficult to Monitor
• Outhouses
5
Disposal Field Operations Soil Structure VADOSE ZONE
SATURATED ZONE
Operating Field
VADOSE ZONE
SATURATED ZONE
Failed Field
Ground Saturation
6
Beginning Assumption Some how we need to dispose of our wastewater. (We might even have to treat it!)
Wastewater Planning • Good assessment of the need (what are the real problems? What are the treatment objectives) • Good information regarding various alternatives. • Good community involvement Buying into the need Address the problems to select an alternative
7
Study Area
Existing and Future Development
8
Background Data Sources • Previous Studies Subject Area Similar Areas Various Guidelines
• Data Collection Forms • Environmental Standards • Public Communications
Wastewater Management System Local Collection
Regional Transmission
Treatment and Effluent Disposal
Private Public
9
Option Pre-Screening • Critical initial step • Consider all options • Gain stakeholder support of decisions • Shortlist for analysis
Pre-Screening - Options • Local Collection • Transmission - WWTF Location • Treatment Process • Effluent Management
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Pre-Screening – Local Collection • None • Haulage • Pressure Sewer – Grinder • Pressure Sewer – Effluent Pump • Small Diameter Gravity • Conventional Gravity • Combined Systems
Local Collection Options Pressure
Combined
Gravity
Truck Haul
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Pre-Screening – Transmission • Status Quo • One Treatment Facility • Two Treatment Facilities • Decentralized Facilities • Outside Pigeon Lake Area • Combinations
Pre-Screening – Treatment Process • Status Quo • Stabilization Lagoons • Aerated Lagoons • Conventional Mechanical Plants • Advanced Mechanical Plants • Natural Systems • Large Scale Regional Treatment
Effluent Mngmt. • Pigeon Lake Creek and/or Pipestone Creek • Battle River • Constructed Wetlands Indirect lake Discharge
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Funding Opportunities Local Collection - Private Systems • No Available Funding
Local Collection – Public Systems • Federal/Provincal CAMRIF (0 to 66%)
Regional Treatment and Transmission • Provincial Water for Life and Water/Wastewater Partnership Programs (75% to 90%)
Planning Criteria • Service Population • Wastewater Generation • Treatment Criteria • Regional Transmission • Collection Hydraulics
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Wastewater Generation Service Population • • • •
Existing Development 25 Year Projection 3 Persons per lot Seasonal Variance 25% Permanent vs. 75% Seasonal (2007) 50% Permanent vs. 50 % Seasonal (2032) Transition Period (Spring and Fall)
Collection Criteria • Pipe and Pump Station Sized for Peak Flow • Existing Development 100% Low Pressure Sewer
• Future Development Low Pressure Gravity
• Haulage – Interim or Long-term
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Treatment Criteria
• Existing and Future Flows • Design Horizon – 10 Year • Treatment Objectives – Based on Receiving Environment
System Option Summary • Five Options Considered • From Large Scale to Medium • Option 1 – Extensive Regional Pipeline • Option 5 – Least Regional Piping
Length of Number Collection and of Lift Transmission Stations Pipe
No. of WWTF
Option 1
80,500 m
5
1
Option 2
67,800 m
4
2
Option 3
54,400 m
1
3
Option 4
66,900 m
2
2
Option 5
48,400 m
0
4
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Summary of Regional Capital Costs Option
Treatment
Transmission
($million)
($million)
Total Regional Costs ($million)
Option 1
$6.5
$19.6
$26.1
Option 2
$9.7
$10.8
$20.5
Option 3
$18.9
$4.7
$23.6
Option 4
$31.4
$9.8
$41.2
Option 5
$23.5
$1.6
$25.1
Option 2, 3 and 5 – Add $4,500,000 for Pipeline to Falun
Operating Costs
Labour Materials Power Equipment
Treatment Regional Transmission Local Collection On-site
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Life-Cycle Cost Comparison Treatment ($000,000)
Transmission ($000,000)
Local Local – Public Private ($000,000) ($000,000) 80.2
Total ($000,000)
Truck Haul
11.3
Option 1
11.1
27.6
15.5
48.5
102.7
Option 2
16.5
15.7
15.5
48.5
96.2
Option 3
38.3
7.0
15.5
48.5
109.3
Option 4
61.0
14.0
15.5
48.5
139.0
Option 5
45.7
2.6
15.5
48.5
112.3
91.5
Summary • On-Site disposal is no longer acceptable. • New wastewater treatment solutions are required. • A long-term plan is needed to work towards. • There are a number of feasible options. • Option 2 and 4 look favourable. • Truck haul is feasible interim solution • Phasing and governance preferences?
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Next Steps • Determine Preferred Alternative(s) • Provide Staging Plan(s) • Discuss Governance Options • Implementation Timeline • Rate Implications • Municipal Decisions