Long Point Region Source Protection Area

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Long Point Region Source Protection Area Long Point Region Source Protection Area Approved Assessment Report Prepared on behalf of Lake Erie Region Source Protection Committee Under the Clean Water Act, 2006 (Ontario Regulation 287/07) March 11, 2019 400 Clyde Road, Cambridge, ON N1R 5W6 www.sourcewater.ca This page left blank intentionally. Long Point Region Source Protection Area APPROVED ASSESSMENT REPORT Prepared on behalf of: Lake Erie Region Source Protection Committee Under the Clean Water Act, 2006 (Ontario Regulation 287/07) March 11, 2019 400 Clyde Road, Cambridge, ON N1R 5W6 • www.sourcewater.ca SECTION 34 DOCUMENT AMENDMENTS The following two tables provide a high-level summary of amendments made in 2017 to the Long Point Region Assessment Report, under Ontario Regulation 287/07, Section 34. Amendments were made using the 2017 Director’s Technical Rules and Tables of Drinking Water Threats. Sections of the Assessment Report that were not updated as part of this Section 34 amendment refer to the 2009 versions of the Director’s Technical Rules and Tables of Drinking Water Threats. SECTION NUMBER DESCRIPTION OF DRINKING WATER SYSTEM AMENDMENT Section 5 Delhi-Courtland drinking water system Norfolk County - two new wells (3A, 3B) added to the Delhi drinking water system Groundwater and new numerical groundwater flow model developed Vulnerability - WHPAs, vulnerability scoring and threats updated for Wells 1, 2, Assessment and 3A, 3B Simcoe drinking water system Section 5 - municipal pumping redistributed and new numerical groundwater Norfolk County flow model developed Groundwater - WHPAs, vulnerability scoring, threats, conditions and issues Vulnerability updated for the Northwest Wellfield, Cedar St. Wellfield and Chapel Assessment St. Well Section 5 Waterford drinking water system Norfolk County - new numerical groundwater flow model developed Groundwater - WHPAs, vulnerability scoring, threats, conditions and Issues revised Vulnerability for Wells 3 and 4 Assessment Section 7 Municipality of Bayham, Richmond drinking water system Elgin County Water - consistently elevated nitrate levels identified in Richmond wellfield Quality Risk - Issue Contributing Area delineated for Richmond Wells TW2-12 and Assessment TW3-12 Municipal drinking water systems of the Towns of Delhi, Simcoe and Waterford (Norfolk County) Section 10 - Tier 3 numerical groundwater flow model developed and risk Tier 3 Water Budget assessment completed and Risk Assessment - WHPA-Qs developed and risk level assigned - Threats identified in Simcoe WHPA-Q Map ID NEW OR AMENDED MAP TITLE 2-12 Provincial Groundwater Monitoring Well Locations in the Long Point Watershed 2-13 Land Cover in the Long Point Region Watershed Provincial Water Quality Monitoring Network Sites in the Long Point Region 2-16 Watershed 2-17 Municipal Water Wells and Intakes in the Long Point Region Watershed 2-20 Permits to Take Water in the Long Point Region Watershed 4-1 Serviced Areas for the Dereham Centre Water Supply 4-26 Serviced Areas for Oxford South (Springford) 5-2 Delhi-Courtland WHPA 5-3 Delhi-Courtland WHPA Intrinsic Vulnerability 5-4 Delhi-Courtland Transport Pathways 5-5 Delhi-Courtland WHPA Vulnerability Scoring 5-8 Percent Managed Lands within the Delhi-Courtland WHPA 5-9 Livestock Density within the Delhi-Courtland WHPA 5-10 Impervious Surface within the Delhi-Courtland WHPA 5-12 Simcoe Serviced Area 5-13 Simcoe Wellhead Protection Area 5-14 Simcoe WHPA E 5-15 Simcoe WHPA Unadjusted Intrinsic Vulnerability 5-16 Simcoe Transport Pathways 5-17 Simcoe WHPA Adjusted Intrinsic Vulnerability 5-18 Simcoe WHPA Vulnerability Scoring 5-19 Simcoe Transport Pathways Area of Influence 5-20 Percent Manage d Lands within the Simcoe WHPA 5-21 Percent Managed Lands within the Simcoe WHPA E 5-22 Livestock Density within the Simcoe WHPA 5-23 Livestock Density within the Simcoe WHPA E 5-24 Impervious Surface within the Simcoe WHPA 5-25 Impervious Surface within the Simcoe WHPA E 5-26 Simcoe Well Supply Issue Contributing Areas (Chapel St. and Cedar St.) 5-27 Serviced Areas for the Waterford Water Supply 5-28 Waterford WHPA 5-29 Waterford WHPA E 5-30 Waterford WHPA Unadjusted Intrinsic Vulnerability 5-31 Waterford WHPA Vulnerability Scoring 5-32 Waterford Transport Pathways 5-33 Percent Managed Lands within the Waterford WHPA 5-34 Managed Lands within the Waterford WHPA E 5-35 Livestock Density within the Waterford WHPA 5-36 Livestock Density within the Waterford WHPA E 5-37 Impervious Surface within the Waterford WHPA 5-38 Impervious Surface within the Waterford WHPA E Conditions Resulting from Past Activities within the Nanticoke IPS Intake 6-11 Protection Zone 7-8 Richmond Well Supply Issue Contributing Area 10-1 Tier 3 Study and Focus Area 10-2 Tier 3 Focus Area - Surface Water Features 10-3 Tier 3 Focus Area - High Quality Well Locations 10-4 Tier 3 Focus Area - Shallow Groundwater Levels 10-5 Tier 3 Focus Area - Deep Groundwater Levels 10-6 Tier 3 Focus Area – Provincially Significant Wetlands and Coldwater Streams 10-7 Tier 3 Focus Area – Land Use Change 10-8 Tier 3 Focus Area – Simcoe 10-9 Tier 3 Focus Area – Waterford 10-10 Tier 3 Focus Area – Delhi 10-12 Tier 2 and 3 - Significant Groundwater Recharge Areas SECTION 51 DOCUMENT AMENDMENTS Amendments to this document, made under Ontario Regulation 287/07, Section 51 following approval on October 30, 2015, are summarized below: DATE AMENDMENT DESCRIPTION OF AMENDMENT POSTED February 21, Identification of threats tables and associated text updated to reflect 2017 implementation of new provincial threats tool (www.swpip.ca) Long Point Region SPA Approved Assessment Report EXECUTIVE SUMMARY In July 2010 the Lake Erie Region Source Protection Committee released the Draft Long Point Region Source Protection Area Assessment Report for a 35-day public comment period, during which members of the public, municipalities and others had the opportunity to view the draft, attend public meetings and submit comments to the Committee. Comments received during the consultation period were taken into consideration by the Committee, and revisions to the document were made, where necessary. These revisions were reflected in the Proposed Long Point Region Source Protection Area Assessment Report. The Proposed Assessment Report was posted for a second 30-day public comment period beginning October 8, 2010. All comments received during this second comment period were forwarded to the Ontario Ministry of the Environment with the submission of the Proposed Long Point Region Source Protection Area Assessment Report on November 25, 2010. The Long Point Region Source Protection Area Assessment Report received approval from the Ministry of the Environment on April 29, 2011. When new information became available, revisions were made to the Updated Long Point Region Source Protection Area Assessment Report. This report was posted for a public comment period beginning on April 15, 2011. All comments received during this comment period were considered by the Lake Erie Region Source Protection Committee. The Ministry of the Environment approved the Updated Long Point Region Assessment Report on February 27, 2012. Following the 2012 approval of the Updated Assessment Report further updates and new information has been added to the Long Point Region Assessment Report; these updates include new information regarding a nitrate Issue Contributing Area in Oxford County and a new drinking water system located in the Municipality of Bayham. A 30-day public consultation period took place from February 9 to March 10, 2015 and a separate, focused consultation was held from March 16 to April 10, 2015 for the new Elgin County – Municipality of Bayham section of the Assessment Report. The Long Point Region Source Protection Authority submitted the Updated Long Point Region Assessment Report to the Ministry of Environment and Climate Change for approval on June 3, 2015. Following the June 2015 submission, additional comments were addressed and the Assessment Report was re-submitted for approval October 27, 2015. The Ministry of the Environment and Climate Change approved the Updated Long Point Region Assessment Report November 4, 2015. New information has since been added to the Approved Updated Long Point Region Assessement Report; these updates include a Tier 3 Water Budget and Local Area Risk Assessment and Wellhead Protection Area (WHPA) updates in the communities of Delhi, Simcoe, Waterford and the Village of Richmond. Comments received during all public consultation periods are summarized in Appendix A. The Assessment Report summarizes the technical studies undertaken in the Long Point Region Source Protection Area (watershed) to delineate areas around municipal drinking water sources that are most vulnerable to contamination and overuse. Within these vulnerable areas, historical, existing and possible future land use activities were identified that could pose a threat to municipal water sources. Technical studies include a characterization of the human and physical geography of the watershed, a water budget and water quantity stress and risk March 11, 2019 ES-1 Long Point Region SPA Approved Assessment Report assessment, an assessment of groundwater and surface water vulnerability, a land use activity inventory, and an evaluation of existing water quality contamination Issues. The Assessment Report provides an introduction to the Source Protection Planning process, and the roles and responsibilities of the Lake Erie Region Source Protection Committee, municipalities and conservation authorities. Section
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