Map Notes Percentage of Soils in the Thames Watershed & Region

Percentage Clinton Map 8 The soils of Southern General Soil Grouping Thames Region LTVCA UTRCA generally fall into the zonal great Soils Information Silt & Clay 39 51 26 soil group Grey-Brown Podzolic Bayfield Milverton Sand Loams 16 24 7 Seaforth Soils or Grey-Brown Forest Watershed Characterization Report Soils. These soils are formed Silt & Clay Loams 25 12 39 from the decay of leaves and Thames Watershed & Region Loams 9 4 15 r. irl C wood in locations where moisture Wh Bottom Land & Beach 3 4 3 (Upper Thames River & Lower Thames and nutrients were favourable for Mitchell WATERLOO

River Valley Source Protection Areas) the growth of hardwood trees. Organics 1 0 2 PERTH Not Mapped & Other 7 5 8 HURON The categories used to describe 100 100 100 r. the soils in this map are general Flat Black C River New Hamburg Legend

Cr.

classifications that combine data Exeter Avon Stratford ames from provincial soil surveys. The Lake Th Thames Watershed & Region original soil surveys provide Tavistock Huron Grand Bend highly detailed descriptions and Thames Watershed Boundary t mapping of the soils on a Cr. Trou countywide-basis. As these Fish St. Marys C Port Franks r. Municipal Boundaries surveys were completed at different times and at varying River levels of detail, the resulting Lucan rth General Soils Description mapping does not necessarily Parkhill No ames Bottom Land and Beach match across county boundaries. Th Cedar Woodstock For this reason, in creating the Medw

Forest Thorndale OXFORD Cr. above soils map, soils were MICHIGAN ay C River Extraction

r. es grouped according to their parent Middle am type. For example, the category MIDDLESEX Thamesford Th Fine Sand oCr. of “loam” includes all loams and n Cr. bu rg Cr. th Ingersoll silt loams identified in the Coldstream Wau Sou Loam Pottersbu provincial soil surveys. Oxbow Dorchester Not Mapped Wyoming Watford Soil type plays a major role in Strathroy Komoka London Reyn whether rain or snowmelt olds C r. Organic infiltrates into the ground to feed r Dingman Cr. aquifers or runs off the land into LAMBTON Mount Brydges Petrolia Ridge streams, lakes and rivers. In Tillsonburg

River general, clays and silts tend to be Rive less permeable and more prone to Alvinston Sand Loams Gen generating surface runoff, tlem

en whereas sands and loams are lair Oil Springs C Scarp r. Aylmer more likely to permit infiltration St. Thomas C NewGlencoe and groundwater recharge. Areas bigge Cr. Silt and Clay ames Battleh Th that generate more surface water n Cr. St. Talbot ill ELGIN runoff also tend to deliver more Cr. Newbury Silt and Clay Loams Dutton Port Stanley Watercourse Information Bothwell Water Due to the complexity of the Wallaceburg Thames River watershed West Lorne watercourse network, only 3rd Dresden order and greater watercourses Thamesville Cr. Sixteen are shown. M PARRY SOUND ile C MUSKOKA River g HALIBURTON in r. Georgian Highgate HASTINGS Watershed Boundaries Flem Bay Watershed boundaries shown are PETERBOROUGH KAWARTHA LAKES ² Lake not precisely defined. The SIMCOE ames Lake Simcoe Ridgetown GREY boundaries were originally Th r. Lake C Huron BRUCE 0 5 10 20 30 40 created using watercourse and CHATHAM-KregorENT NORTHUMBERLAND DURHAM PRINCE EDWARD McG DUFFERIN km elevation information from St. Clair Dr. Chatham YORK ief Rel

1:50,000 N.T.S. mapping. arlane PEEL McF WELLINGTON TORONTO Lock D HURON Map created by UTRCA, August 2007. Cr. Lake ttes r. Blenheim HALTON Jeanne PERTH Ontario Baptiste C Lake WATERLOO Base mapping produced under license with the Ontario Ministry of Natural Resources. © 2007. r. HAMILTON r. BRANT OXFORD

Cr. ry C Tilbury Erie NIAGARA MIDDLESEX Soils information derived from Ontario Ministry of Agriculture and Food, Big HALDIMAND Tilbu LAMBTON Soils Ontario Version 1.0. NORFOLK

ELGIN ESSEX Lake CHATHAM-KENT Thames-Sydenham St. Clair Lake Erie and Region ESSEX Legend Municipal Boundaries Document Reference Thames Watershed & Region 1.2.4 Soils Characterization Source Protection Region Leamington