Water System - Tillsonburg
The County maintains a diverse portfolio of assets necessary to produce and supply safe and clean drinking water. The county maintains a drinking water Quality Management System that demonstrates continued compliance with drinking water regulations and the County’s commitment to continual improvement in the provision of a safe, reliable, and sustainable supply of drinking water for its residents and businesses.
The Tillsonburg water system consists of water treatment plants (WTP), each housing high lift pumps, monitoring equipment and treatment equipment for the production wells. Each WTP also includes varying types of disinfection and filtration treatment specific for each location. The water distribution network transports potable drinking water to homes and businesses. The distribution network consists of watermains, services, hydrants, valves, meters, pressure boosting stations, reservoirs, and water towers.
Inventory
| Asset Component | Unit | Current Inventory | Replacement Costs |
| Production Well and Water Treatment Plant | site | 10 | $8,785,157 |
| Storage Structures | bldg | 4 | 5,975,012 |
| Other Assets | each | 19 | 668,977 |
| Equipment | total | N/A | 8,505,672 |
| Watermain (﹤416mm) | metre | 149,476 | 93,005,992 |
| Watermain (﹥=416mm) | metre | 5,427 | 7,874,073 |
| Water Service Connection | each | 6,927 | 22,083,276 |
| Hydrant | each | 695 | 9,825,215 |
| Valve | each | 1,443 | 7,837,542 |
| Water Meter | each | 7,715 | 3,518,040 |
| Total Replacement Cost | $168,078,956 | ||
The replacement cost valuation for the linear assets in this portfolio are based on current tender prices, where available. The replacement cost valuation for vertical components is based on the latest information available, which includes current replacement costs, insurance valuations, inflation, and valuations from studies / assessments completed in prior years.
Condition
The assessment approach for our water assets utilizes a combination of physical assessments, asset attributes, such as material and sizing, as well as established anticipated useful lives.
The percentage of assets in poor or critical condition has increased from 12% as reported in the 2022 AMP to 15%.
The percentage of assets in good or excellent condition has remained unchanged at 57% as reported in the 2022 AMP. As assets continue to age their condition rating will decline until lifecycle strategies are triggered and completed.
Key Performance
| Key Service Attribute | LOS Statement | Performance Measure | 2022 | 2023 | Target |
| Safety | Providing efficient and safe drinking water and supports fire protection | % of properties within the system boundary connected to the municipal water system | 97% | 98% | TBD |
| Reliability | Providing water services with minimal interruptions | The number of connection-days per year where a boil water advisory notice is in place compared to the total number of properties connected to the municipal water system. | 0 connection-days compared to 6,777 connections | 0 connection-days compared to 6,966 connections | TBD |
| The number of connection-days per year due to watermain breaks compared to the total number of properties connected to the municipal water system. | 6 connection-days compared to 6,777 connections | 8 connection-days compared to 6,966 connections | TBD |
Funding Gap Analysis
This portfolio is currently funded through an annual contribution to the Water - Tillsonburg reserve, by water rates in Tillsonburg, along with an annual allocation of interest earned.
The graph illustrates the anticipated asset management needs (expenditures) and anticipated funding for the 10-year period of 2024-2033, reflecting an approximate $0.6 million deficit in funding availability over the period.
The projected lifecycle needs suggest that no linear replacements are required within the 2024 to 2033 period. The installation date of older assets in Tillsonburg is defaulted to 1952 within the asset management systems, however it is assumed that some assets were installed prior to 1952. Staff continue to update the default installation date as information becomes available. Linear water projects within the 2024 to 2033 period included in the County’s 2024 long-term capital plan have been incorporated into the projected non-lifecycle needs.
The current investment falls short of the annual required investment. In accordance with the Water and Wastewater Rates Policy, the annual contribution to reserve should increase annually with inflation.