Wastewater Treatment document library/Agendas a… · Water Resource Centre Long-term Planning 22 Thorough review of WRC and associated documents to provide a summary of existing

Wastewater TreatmentSystem Overview and Long-term Vision

Regulatory Regime

2

Regulatory Regime

3

The Municipal Wastewater Regulation replaced the Municipal Sewage Regulation on April 20, 2012. Changes included:

• Certification of Wastewater Collection Operators became mandatory

There are three regulatory instruments to authorize municipal wastewater (sewage) discharges:

• Site-specific permits for facilities existing prior to 1999 who have not transitioned to a registration

• Registrations under the Municipal Wastewater Regulation

• Minister approved Liquid Waste Management Plans (which include operational certificates)

Liquid Waste Management Plan Recap

4

Liquid Waste Management PlansMunicipal Wastewater Regulation Registration

Allow municipalities to develop community-specific solutions for wastewater management that meet or exceed existing regulations

Compliance with the Municipal Wastewater Regulation (MWR) provides authorization for a discharge of municipal effluent or use of reclaimed water in B.C.

Final plans are approved by the Minister of Environment & Climate Change Strategy only after sufficient public and stakeholder consultation has taken place

Contains a comprehensive registration document checklist that includes a Facility Operating Plan and a Receiving Environment - Environmental Impact Study

Voluntary unless ordered by the Minister Compliance with MWR is not voluntary

Liquid Waste Management Plan Recap

5

Liquid Waste Management Plan Recap

6

We are currently at the “Steering and Technical Advisory Committee Stage” of the LWMP Stage 2 Update

Compliance can be an issue on rare occasions, if the membrane filters are not used.

An alternative to completing the LWMP process is to apply to amend the MWR registration. Would allow for lower effluent quality requirements and by-passing filters.

Summary of assets• Dusty Road Pre-treatment Plant (Septage)

• Entire sewer collection system, which includes 50 kilometers of underground sanitary sewer piping systems

• Nine (9) lift stations

• One sanitary outfall (on-land portion of outfall was upgraded to 300mm, ocean section to be upgraded for future growth)

• 1,007 Maintenance Holes (formerly called Manholes)

• Water Resource Centre

What do we own?

7

8

Dusty Road Septage Receiving Facility

Dusty Road Septage Receiving Facility

• Solids disposal (estimated $500,000 in 2021 & 2023)

• Continuance at current site, lease expires in 2031

• Land swap, construct new facility ($3m to $5m+/-)

• Site cleanup($?)

• Extend lease?

• Current service level adjustment?

• Discontinue service?

9

Collection System Overview

10

Collection System Short-term Concerns

• Harbor Pipe Investigation -Sechelt Inlet

• Out-fall replacement (Estimated at $4,500,000)(needs to be completed by 2025)

• Infiltration/Inflow• Decreases efficiency of treatment

• Increased sewage volumes

11

Collection System Condition Assessment

12

Sewer System Expansion

• Expansion of the collection area• Proactive

• Expansion in existing neighborhoods: Grant applied for West Sechelt and West Porpoise Bay expansion in 2018, grant was denied in 2019.

• Expansion by development: Ongoing, developer driven.

• Capacity currently exists for expanded flows (The average daily flow is 2,200 m3/day, the maximum average daily flow capacity is 4,000 m3/day)

• More users needed (2,917 properties connected to the sewer system out of 5,627 eligible properties)

13

Lift Stations

14

Lift Stations

Lift stations needing to be replaced

• Wakefield lift station (estimated at $ 870,550, waiting to hear about ongoing grant application)

• Norwest Bay Lift station(estimated at $600,000)

• McKenzie lift station (estimated at $1,000,000)

• The above lift stations are budgeted to be replaced within the current five-year capital plan

15

Maintenance Holes (formerly called Manholes)

16

• Maintenance Hole (formerly called Manholes) replacements▪ several need replacing $20,000 to $40,000 each

Water Resource Center

17

Water Resource Center

18

Water Resource Center

• More than five years old

• Annual & bi-annual maintenance planning

• Some of the operating equipment needs replacement or requires major maintenance

• Overall maintenance level needs to be elevated

• Under-staffed

• Must remain in compliance with our permit requirements

• Asset Management - Funds need to be set aside for major maintenance and replacement

19

Water Resource Center

20

Water Resource Center

21

Water Resource Centre Long-term Planning

22

Thorough review of WRC and associated documents to provide a summary of existing challenges and issues.

Analysis of WRC and benchmarking to other similar plants. Recommendations to lower operating costs and optimize treatment train.

Review historical flows and load data. Prepare flow and load projections for 20 years; and assess future expansion of facilities through to 2040.

Compile categorized asset inventory; assign expected service life, replacement cost, current condition, and criticality rating for each asset; and identify asset renewal timing to inform sanitary service costs and subsequent sanitary rate adjustments.

Asset Management

Asset Management supports informed decision making –balancing costs, managing risk, and delivering performance

23

Asset Management

• Timely investments save money

• Asset management enhances planning

Life Cycle Management

24

Asset Management

25

Sechelt is in thisstage of its AM Program Development

AN

NU

AL

FUN

DIN

G

SUSTA

INA

BILITY G

AP

FUNDING TO REPLACE ASSETS AT END OF SERVICE LIFE

CURRENT FUNDING

Example: Cured-in-Place Concrete Pipe Lining

Examples: Cumulative Infrastructure LeviesSanitary Rate Reviews

SUSTAINABILITY SWEET SPOT!

26

NEW LEVEL OF FUNDING

Asset Management

Other On-going and Future Studies

Sanitary Rate Review

Reclaimed Water Re-Use Feasibility Study

Sanitary Sewer Flow Monitoring and Modelling

Sanitary Sewer Camera Inspections and Condition Assessments

Neighbourhood-level Sewer Functional Plans

27

Organizational Chart

28

Next Steps and the Future

2929

• Award contracts for items that already have funding committed:▪ Camera Inspect Sanitary Mains

▪ Repair /replace effluent outfall

▪ Sewer Modelling

▪ Sewer Functional Plans

▪ Reclaimed Water Feasibility Study

▪ WRC Process Audit

• Apply for FCM MAMP Funding for Asset Management Planning

THANK YOU!