Urban Uxbridge Area Municipal Wells

The water supply for the Urban Uxbridge Area is provided by two (2) drilled wells MW5 and MW6. The Uxbridge Urban Area and its wells are situated near the Oak Ridges Moraine (ORM).

The 50-day, 1-year, 2-year, 5-year, 10-year and 25-year capture zones are delineated for Uxbridge wells at their maximum permitted capacities. The following are the approximate dimensions of each municipal well capture zone:

The WHPA for municipal wells extends southeast (MW4, MW6 and MW8) and southwest (MW3, and MW2 and MW7).

What Did We Find?

The WHPA intersects over one thousand (1000) individual properties. The WHPA for MW5 extends to the south and into the ORM. The majority of land use within this capture area is residential and small businesses. The majority of land use activities within the MW5 capture zone poses little threat to the groundwater resources. However, due to the semi-confined nature of the aquifer system at this location, it is important to ensure that Best Management Practices (BMP) are employed in this area.

The WHPA for MW6 extends to the south, beneath the cemetery and residential lands along Campbell Drive and Cemetery Road , and into commercial and industrial lands along Toronto Street . This comprises a significant amount of residential as well as industrial, commercial, and institutionally zoned properties.

The newer commercial service area on Toronto Street has a wide variety and number of moderate to higher risk operations within the commercial service area with respect to potential contaminant sources. Several large automotive service areas are in this commercial district including new and used automotive sales and service centres. Other potential high-risk contaminant sources include a machining operation, automotive body and paint facilities as well as retail and bulk fuelling facilities. Many Underground Storage Tanks (UST) are located in this commercial district. There is also concern over the proximity of the MW6 capture zone to the local cemetery. These businesses pose a moderate to high level of risk as potential contaminant sources.

The Region of Durham has initiated a water quality monitoring program at recently installed sentry wells in addition to the standard monitoring of water quality at municipal wells.