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Page 1: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

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Page 2: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment

plant (on DL 117, north east end of Industrial Way)

• Conveyance System: group of pipes and pump stations needed to take the sewage to and from the plant

• Outfall: New ocean outfall located in Duffin Passage

• Solids Handling Facility: a biosolids facility located at the existing landfill site

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Page 3: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT The plant itself…

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INDUSTRIAL WAY

YEW WOOD

Page 4: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT

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Page 5: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Conveyance System

Conveyance System: • 4 km of new pipe • Four new lift stations:

1. First St @ Dock 2. Main St 3. First St near Arnet

Rd 4. Pacific Rim Highway

near Gas n Go station

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Page 6: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Outfall

• will be 500m long • will be made of 350mm HDPE DR17

• will include a set of diffusers at a depth of 31.3m (relative to chart datum)

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The new proposed outfall:

• The existing outfall at the end of First Street will be abandoned.

Page 7: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Residual solids Facility

The facility will consist of a biosolids/wood waste blend. It will be 20m x 75m (65 ft x 240 ft) Current design consists of:

• Aerated bin • Agitated bed composting • Aerated Channel Composting • Wood Waste storage

• Curing Process

Pictured Here: Ladysmith solids handling facility. About twice the size proposed

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Page 8: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Previous Cost Estimates

Project Component Base Cost TOTAL Wastewater Treatment Plant $ 12,700,000 $ 12,700,000 Conveyance including Outfall $ 5,700,000 $ 5,700,000 Solids Handling Facility $ 2,500,000 $ 2,500,000 Upgrades and Others $ 800,000 $ 800,000

$ 21,700,000

Project Component Base Cost Contingency TOTAL Wastewater Treatment Plant

$ 23,300,000 $ 8,200,000 (35%) $ 31,500,000

Conveyance $ 6,900,000 $ 2,400,000 (35%) $ 9,300,000 Outfall $ 603,000 $ 181,000 (30%) $ 784,000 Solids Handling Facility $ 1,770,000 $ 530,000 (30%) $ 2,300,000

$ 43,884,000

Project Component Base Cost General Requirements, Fees & Allowances

TOTAL

Wastewater Treatment Plant $ 26,692,700 $ 15,725,775 (59%) $ 42,418,475 Conveyance $ 7,326,646 $ 4,249,454 (59%) $ 11,576,100 Outfall $ 544,304 $ 315,696 (59%) $ 860,000 Solids Handling Facility $ 1,438,244 $ 834,181 (59%) $ 2,272,425

$ 57,127,000

Liquid Waste Management Plan November 2017

Pre-Design Stage, Class 'C' Cost Estimate March 2018

60% Design Stage, Draft Class 'B' Cost Estimate June 2018

What changed? • Population projection changed from 5,300 to 10,000 (yr 2038 to account for seasonal population • Current market conditions are strong for Vancouver Island contractors and cost of materials are rising. •Sample analysis on sewage revealed stronger than anticipated levels of BOD as high as 400mg/L. Typical residential strength is 200 mg/L • Additional concrete required for Tofino seismic conditions

What changed? • Notice how the base costs stayed relatively the same as March 2018. •The estimates for general requirements and allowances changed format, instead of contingency it is now: 18% General Requirement: Costs any contractor must incur to complete a large-scale project that are not built into the project itself Such as supervision, temporarily facilities, site safety, and project management. 5% Fee: This is for the contractor’s expected profit. Compounded 6% 10% Design Allowance: For detail revisions between current pre-design drawings to final, tender-ready drawings. Compounded 12% 6% Escalation Allowance: For the rising costs of construction and remoteness anticipated between June 2018 and a tender date in 2019. Compounded 8% 10% Construction Allowance: For hidden conditions onsite and change orders. Compounded 15%

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Page 9: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Current Cost Estimate

Project Component TOTAL

Wastewater Treatment Plant $ 38,700,000±

Conveyance $ 10,360,000±

Outfall $ 860,000±

Compost Handling Facility $ 3,400,000±

Construction Admin and Testing $ 1,600,000±

$ 54,909,000

Class 'B' Cost Estimate August 2018

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Funding 73.33% by Grant ($40,264,800) 26.67% by DoT ($14,644,200)*

* Contributions from users outside of the District which include, Parks Canada, Ahousaht First Nation and Tla-o-qui-aht, are to be determined and assumed to be $0 for the purposes of this presentation.

Annual Operating Cost TOTAL

Wastewater Treatment Plant & Compost Handling Facility

$ 612,000

Ineligible Capital Costs TOTAL

Legal, Hiring, Furniture, DCCs, Permit Fees, Land Acquisition, etc. $ 315,000

Funding 100% by DoT ($315,000)*

Page 10: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

WASTEWATER TREATMENT PLANT Schedule

We are here right now.

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Grant Application Submitted

(Aug. 29 2018)

Page 11: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

Financial Implications Annual Operating Costs

Operating Costs: • Operating the wastewater treatment plant will significantly

increase the “sewer” component of utility bills. Current information indicates that this will be as much as a 91% increase.

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Current Annual Sewer Charge Total New Charge (+91%)

Average Residential Customer (216 m3) $290 $554

Residential with B&B (274 m3) $417 $796

Commercial – Recreation (600 m3) $984 $1,879

Commercial – Hotel (15,170 m3) $21,382 $40,840

Page 12: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

Property Tax Impact Capital Costs

Assumptions: • Project Cost: $60,000,000* • 73.33% Grant: $43,998,000 • 26,67% Debt: $16,002,000 • $0 contributions from other

users (likely to change) • Annual Debt Servicing:

$896,419 • 30 year debt term @ 3.5%

* $60M is rounded up from current project estimate for simplicity

How to calculate your portion of the capital cost: Use the following formula to calculate your annual cost for the capital cost of the Wastewater Treatment Plant:

Assessment value of your property/1000 x tax rate

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Property Class Tax Rate

Residential 0.6531 Utility 8.2601

Business 1.9110 Recreation/Nonprofit 2.8890

Farm 0.6531

Page 13: WASTEWATER TREATMENT PLANT - Tofino...WASTEWATER TREATMENT PLANT Tofino’s Wastewater Treatment Plant Project consists of… • The wastewater treatment plant (on DL 117, north east

Estimated Tax Increase Capital Cost

Residential Class - 11% Increase:

Business Class - 12% increase:

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Value 2018 Tax Bill WWTP Debt Servicing

$ 500,000 $ 2,870 $ 326 $ 750,000 $ 4,305 $ 490

$ 1,000,000 $ 5,740 $ 653 $ 1,250,000 $ 7,175 $ 816

Value 2018 Tax Bill WWTP Debt Servicing

$ 500,000 $ 7,941 $ 955 $ 750,000 $ 11,912 $ 1,433

$ 1,000,000 $ 15,882 $ 1,911 $ 1,250,000 $ 19,853 $ 2,387