Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

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The Barrie Creeks, Lovers Creek and Hewitt’s Creek Subwatershed Plan Figure 4-20: Maximum groundwater consumptive demand (AquaResource and Golder, 2010). Chapter 4: Water Quantity – Surface and Groundwater 175
The Barrie Creeks, Lovers Creek and Hewitt’s Creek Subwatershed Plan Permitted Water Demand There are a number of large groundwater and surface water takings within the subwatershed that require a Permit to Take Water for uses such as industrial and golf course irrigation. Some of the water pumped for these uses is lost to evapotranspiration while some may infiltrate back to the subsurface as irrigation return flow (actual consumption, i.e. water removed from the subwatershed, will differ by the specific application). The most important source of consumptive demand information was the MOE PTTW database and actual municipal water use data. Municipal and other water supplies are obtained from both surface water (lakes and rivers) and groundwater. Section 34 of the Ontario Water Resources Act (OWRA) states that any person or business taking more than 50,000 litres of surface or groundwater per day are required by law to obtain a PTTW from the Ministry of the Environment. Permits are not required to take water for domestic purposes, livestock watering, or firefighting. Information from the January 2008 PTTW program database was used to estimate actual water demands. Figure 4-21 above shows the locations of all permitted groundwater takings within the Study Area. Table 4-7 shows the maximum permitted takings by subwatershed. Only permits representing sustained water takings were used in the assessment, temporary permits such as pumping tests were not included. The PTTW program is now requiring users to report actual pumping rates; however, this updated information was not available for this study. Since the actual pumping rates were unavailable some considerations were taken into account when using the database. 1) Permit holders often request a volume that exceeds their requirements to be listed on the permit. This is often done to ensure compliance in dry years, or to secure sufficient water for possible future expansion. 2) The permitted volume is often derived from the capacity of the pumping equipment rather than the requirements of the user, which can drastically overestimate the user’s demand. 3) The database does not maintain a record of whether the permit is just for seasonal use. 4) Multiple sources may be included on a particular permit, and the total refers to all sources associated with the permit. To estimate the total demand, the total permitted rate should be logically divided amongst the active source locations. 5) The spatial location of the water taking sources is not always accurate. 6) The PTTW database is not current with respect to the MOE’s actual permitting activities. 7) Historic water takings may be “grandfathered” and do not require a permit. As a result, there may be some significant water takers not accounted for. Table 4-7: Maximum permitted takings by subwatershed (AquaResource and Golder, 2010). ID Subwatershed Area Maximum Permitted Takings km 2 (L/s) (mm/yr) 28 Hewitt’s & Lovers Creek 74 182 77 22 Barrie Creeks (includes a small portion of Willow Creek that contains Barrie Wells) 53 1,308 771 Chapter 4: Water Quantity – Surface and Groundwater 176
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Barrie Creeks, Lovers Creek, and He
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Acknowledgements The Barrie Creeks,
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• East of the Barrie Creeks subwa
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Fish Habitat -Fish communities in t
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Table of Contents TABLE OF CONTENTS
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3.5.4 Water Temperature - thermal d
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5.3.11 Climate Change 237 5.4 ASSES
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6.5.10 Improving data management 31
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LIST OF FIGURES CHAPTER 1 Figure 1-
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Figure 2-34: Annual precipitation (
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CHAPTER 4 Figure 4-1: Hydrologic cy
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Figure 5-11: Pathways by which impe
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Figure 7-11: Riparian area with app
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Table 3-4: Surface water quality co
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CHAPTER 5 Table 5-1: Fish species c
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The Barrie Creeks, Lovers Creek and
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Creek ANNE ST N BAYFIELD ST N LINE
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FERNDALE DR N ANNE ST N BAYFIELD ST
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7.4 Urban interactions - land use,
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Figure 7-9: An urban landscape with
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7.5 In-stream interactions - activi
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7.7 Developing an implementation pl
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Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

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