CENTRE WELLINGTON Map Notes MAPLETON CENTRAL HURON Clinton NORTH PERTH Map 35 Municipal systems draw water Municipal Wellhead from both overburden WOOLWICH (shallow, intermediate and Bayfield HURON EAST Milverton Protection Areas deep) aquifers and bedrock Seaforth WELLESLEY aquifers. Wellhead protection areas (WHPAs) illustrate the Watershed Characterization Report zone from which a municipal Thames Watershed & Region . water supply well receives its Lake Cr irl WATERLOO (Upper Thames River & Lower Thames water. The indicated time of Wh travel is the number of years it Huron WEST PERTH Mitchell Valley Source Protection Areas) BLUEWATER WATERLOO takes water (or a potential River PERTH contaminant) to travel through PERTH EAST Legend the aquifer to the well. The HURON KITCHENER indicated time of travel does WILMOT . not represent the percolation Cr Black River time from the land surface to Flat C STRATFORD New Hamburg Thames Watershed & Region

n STRATFORD the aquifer(s). es Exeter r Avo

. NORTH DUMFRIES am

WHPAs vary in size and shape Th Grand Bend Tavistock Thames Watershed Boundary depending on the volume of SOUTH HURON water pumped from the well, PERTH SOUTH and a number of factors that Municipal Boundaries ut characterize the aquifer such as o Cr. Tr the transmissivity MICHIGAN Fish ST. MARYS C BLANDFORD-BLENHEIM (transmittance of water through Port Franks r. County Boundaries EAST ZORRA-TAVISTOCK an aquifer); porosity (the LUCAN BIDDULPH amount of pore space);

River Wellhead Protection Area Location

hydraulic conductivity (the Lucan th or

ability of an aquifer to transmit LAMBTON SHORES N water which is a function of the Parkhill Time of Travel (years) ZORRA es gradient and the thickness of NORTH MIDDLESEX am the aquifer); storativity (the Th WOODSTOCK Ced 2 amount of water that the Med ar Thorndale aquifer can hold); and the Forest wa OXFORD Cr e l River MIDDLESEX CENTRE y C . BRANT COUNTY amount of recharge to the Refer to Assessmentidd Report es r . M aquifer. am 5 MIDDLESEX Thamesford Th . o Cr . un INGERSOLL Watercourse Information Cr . rg ub 10 Coldstream Cr bu uth Due to the complexity of the w s WARWICK Wa So ADELAIDE-METCALFE Potter Thames River watershed xbo ² Appendix O 1 for Updated MapNORWICH watercourse network, only 3rd Dorchester 25 order and greater watercourses SOUTH-WEST OXFORD Komoka THAMES CENTRE are shown. Watford Strathroy LONDON Reyno 04 8 16 24 32 Watershed Boundaries lds C Watershed boundaries shown Dingman Cr. r km STRATHROY-CARADOCMount Brydges . are not precisely defined. The SOUTHWEST MIDDLESEX boundaries were originally INSET 1 created using watercourse and PARRY SOUND LENNOX AND ADDINGTON Map created by UTRCA, August 2007. BROOKE-ALVINSTON TILLSONBURGGeorgian MUSKOKA HALIBURTON Bay elevation information from River HASTINGS Base mapping produced under license with the Ontario Ministry of Natural 1:50,000 N.T.S. mapping. WEST ELGIN I.R.Alvinston . Resources. © 2007. PETERBOROUGH

Cr Sixteen KAWARTHA LAKES G Lake Lake SIMCOE entlem I.R. Simcoe Huron GREY Municipal wellhead protection areas defined by: Mile BRUCE - Vulnerability Assessment and Threats Inventory, Perth County Municipal River en NORTHUMBERLAND Cr MALAHIDE DURHAM PRINCE NORFOLKEDWARD Cr Drinking Water System Study. Waterloo Hydrogeologic Inc. 2006. ing . ST. THOMAS DUFFERIN YORK SOUTHWEST MIDDLESEX . AYLMER - Middlesex Elgin Groundwater Study, Final Report. Dillon Consulting, Flem New Golder and Associates. July 2004. Glencoe PEEL Highgate SOUTHWOLD WELLINGTON TORONTO HURON Lake - Essex Region/ Chatham-Kent Region Groundwater Study. Dillon big Cr. BAYHAM NORFOLK COUNTY CHATHAM-KENT es t Ontario gen am PERTH HALTON Consulting, Golder and Associates. December 2004. Battleh Th lbo WATERLOO Cr Ta - Township of Strathroy-Caradoc Groundwater Management Study. DAWN-EUPHEMIA . il ELGIN HAMILTON l International r. Cr Ridgetown BRANT C . CENTRAL ELGIN OXFORD Water Consultants Ltd. 2001. or NEWBURY DUTTON-DUNWICH NIAGARA eg MIDDLESEX r HALDIMAND - The Corporation of the County of Oxford Phase II Groundwater Protection Port Stanley LAMBTON McG Dutton NORFOLK Study. Golder and Associates. March 2001. ELGIN Bothwell Lake CHATHAM-KENT CHATHAM-KENT St. Clair Thames-Sydenham Lake West Lorne Lake Lake Erie ESSEX and Region WEST ELGIN Erie Legend Document Reference Erie Municipal Boundaries 2.7.1 Drinking Water Sources . Inset 1 Thamesville Cr Sixteen Thames Watershed & Region 3.5 Groundwater Aquifer Source Protection Region M River ile Cr ing . Flem