Views
3 years ago

Lake Erie North Shore Watershed Plan - Niagara Peninsula ...

Lake Erie North Shore Watershed Plan - Niagara Peninsula ...

LAKE ERIE NORTH SHORE

LAKE ERIE NORTH SHORE WATERSHED PLAN Upon approval of the Proposed Assessment Report by the MOE, the report will be used to prepare a Source Protection Plan (SPP). The purpose of the Source Protection Plan is to eliminate or reduce significant threats to municipal drinking water sources that are identified in the Assessment Report (NPCA 2010b). The Source Protection Plan, which should be completed by 2012, may require municipalities to restrict future land use activities within the area of the Intake Protection Zone, in order to protect the municipal drinking water source (Wright 2007). The SPP “could use various types of policies ranging from outreach and education to incentive plans to risk management plans or even prohibition of certain activities” (NPCA 2010). The Clean Water Act (MOE 2006b) also requires that decisions made under the Planning Act or the Condominium Act (MMAH 1990,1998) shall conform to the significant threat policies and designated Great Lakes policies set out in the Source Protection Plans; the Source Protection Plan „prevails‟ in the case of a conflict with official plans and zoning by-laws, although subject to “the provision that provides the greatest protection to the quality and quantity of any water that is or may be used as a source of drinking water prevails” (MOE 2006b, CWA Section 39). Therefore, while no policies are in place yet, once the Source Protection Plan is approved, it could restrict future land use activities within the areas of the Intake Protection Zones. Water Quantity Water Budget Under the Clean Water Act (MOE 2006b), one of the requirements of the Assessment Report Technical Rules is that each Source Protection Region/Area must complete a Tier 1 Water Budget. The purpose of the Tier 1 Water Budget in Niagara Peninsula is to: Estimate the hydrologic stress of each watershed planning area in order to screen out areas that are unstressed with respect to water quantity Highlight areas where the reliability of water supplies is questionable Delineate significant groundwater recharge areas The Niagara Peninsula Tier 1 Water Budget and Water Quantity Stress Assessment (NPCA 2009c) contains an analysis of the water inflows and outflows within each watershed planning area, for example, the Lake Erie North Shore Watershed Plan study area. The inflows include precipitation, lateral groundwater inflows, surface water inflows from upstream catchments, and water diversions (such as those from Welland Canal). Outflows include evapotranspiration, surface water discharges (e.g. Wignell Drain into Lake Erie), water takings by industry, residences and agriculture, and lateral groundwater outflow. A Water Availability Study (WAS) (AquaResource Inc 2009) was completed for each watershed planning area by analyzing the inflows and outflows using computer models. The purpose of the WAS was to determine the water available for surface water flow, groundwater recharge and evapotranspiration on a monthly basis for the time period 1991 to 2005. This time period was chosen to best suit available datasets and meet the minimum World Meteorological Organization climate normal criterion of fifteen years. 98

LAKE ERIE NORTH SHORE WATERSHED PLAN Once the Water Availability Studies were completed, the Tier 1 Water Budget focused on anthropogenic water takings and water consumption, to determine if the watershed planning area is stressed hydrologically. The Tier Water Budget and Water Quantity Stress Assessment (NPCA 2009c) ties in the Water Availability Study and a Stress Assessment. The report includes a watershed characterization (climate, topography, geology, physiology, land cover, soils, streamflow), watershed modelling (model set-up, calibration, verification, sensitivity, results, and uncertainty), water taking analysis and stress assessment, as well as conclusions and recommendations. The Stress Assessment was completed for both surface water systems and groundwater systems; these assessments were conducted separately. A system is considered moderately or significantly stressed if the demand exceeds a provincial benchmark threshold value Table 9 (NPCA 2009c). The Niagara Peninsula Tier 1 Water Budget and Water Quantity Stress Assessment (NPCA 2009c) identified the Lake Erie North Shore watershed as having a moderate surface water stress level based on provincial benchmark threshold values (Table 9). A moderate stress level is assigned to surface water systems where the maximum monthly water demand consists of 20% to 50% of the surface water supply. The Lake Erie North Shore was also identified as having a significant groundwater stress level. A significant stress level is assigned to groundwater systems where the demand for monthly maximum exceeds 50% or the average annual exceeds 25% of the groundwater supply. Table 9: Provincial Benchmark Threshold Values Potential for Surface Water Stress Thresholds Stress Level Assignment Maximum Monthly % Water Demand Significant > 50% Moderate 20% to 50% Low < 20% Potential for Groundwater Stress Thresholds Stress Level Assignment Average Annual Monthly Maximum Significant > 25% > 50% Moderate > 10% > 25% Low 0 to 10% 0 to 25% Additional benefits that will result from the completion of the Tier 1 Water Budget include; this project will satisfy one of the Niagara Water Strategy objectives which is to prepare water budgets for watersheds within Niagara Region; and the project will aid the NPCA when commenting on Permit-To-Take-Water (PTTW) applications (Wright 2009). In Ontario, water takings (both surface and ground) are governed under the Ontario Water Resources Act (MOE 1990) and the Water Taking and Transfer Regulation. Under the Ontario Water Resources Act “a person shall not take more than 50,000 litres of water on any day by any means except in accordance with a permit issued by the Director” (section 34.3). Currently in the Lake Erie North Shore Watershed Plan study area there are 21 PTTW. 99

8132 - NPCA SNF Watershed Report.indd - Niagara Peninsula ...
15-16-18 Mile Creek - Niagara Peninsula Conservation Authority
2006 AnnuAl REPORT - Niagara Peninsula Conservation Authority
Buffer Brochure - Niagara Peninsula Conservation Authority
Wetland Characteristics - Niagara Peninsula Conservation Authority
Lake Erie Shores & Islands Profile - Ohio Has It!
The Grand River - Lake Erie Connection - Great Lakes Fishery ...
Naturalization Brochure - Niagara Peninsula Conservation Authority
Lake Erie s Shores and Islands (Images of America)
Title Page, Partners, Abstract - Niagara Peninsula Conservation ...
Lake Winnipeg Watershed Attributes Winnipe g Erie Watershed km
2012 - 2021 Watershed Management Plan Volume I - Comfort Lake ...
Rocky shore Habitat action plan - North York Moors National Park
Fort Erie Creeks Watershed Plan - Niagara Peninsula Conservation ...
Upper Welland River Watershed Plan - Niagara Peninsula ...
2.0 Watershed Geologic Characterization.pdf - Niagara Peninsula ...
Agenda - Niagara Peninsula Conservation Authority
Lower Welland River Characterization Report - Niagara Peninsula ...
Land Use Planning & Review Policy - Niagara Peninsula ...
Agenda - Niagara Peninsula Conservation Authority
Agenda - Niagara Peninsula Conservation Authority
Reclaiming our Lake Erie shore
Monitoring & Assessing Marsh Habitat Health - Niagara Peninsula ...
NPCA Stormwater Manual – Appendices - Niagara Peninsula ...
Agenda - Niagara Peninsula Conservation Authority
Agenda - Niagara Peninsula Conservation Authority
North Shore Watershed Management Plan Notes from Community ...
Central Welland River Watershed Plan - Niagara Peninsula ...
Watershed Conservation Plan - Destination Erie
Lake Erie Shores & Islands Backgrounder - Discover Ohio