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Water and Wastewater in Ontario
Chris Lyon, P.Eng., M.Eng. Director Engineering ServicesAinley Group, Engineering
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Overview
Municipal Water SystemsWatershed Protection in OntarioThe OCC PS Project
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Municipal Water In Ontario
Where does it come from?Is it treated?Is it tested?How much does it cost?Is it safe?Do you drink it?
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Water Sources
Groundwater (Springs, Wells, etc.)Surface Water (Rivers, Lakes, etc.)Ocean Water (Desalination Plants)Rain / Snow (Cisterns)Others?
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Is Drinking Water Treated? / Tested?
Private Wells… nopePrivate Lakes/ Rivers… nadaCompany Wells/Surface Water… nadaMunicipal Sources… yesProvincial Sources… mostlyFederal Sources… sometimes
… a little… a little
… it depends
… big time… mostly
… sometimes
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Treatment…
Surface waters are cleaned, settled and pollishedChlorine is added to municipal waterOzone and UV Rays are used to neutralize bacteria in some casesFree Chlorine must still be in municipal systems
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Living Organism Pollutantsin Drinking Water – Danger?
Coliform Rotting Plants / Soil Fecal Coliform E-Coli
– Animals
Parasidic Protazoa Cryptosporidium Giardia Lamblia AKA - Beaver Fever /
Montezuma’s Revenge, etc.
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Living Organism Pollutantsin Drinking Water – Danger?
Coliform Rotting Plants / Soil Fecal Coliform E-Coli
– Animals
Parasidic Protazoa Cryptosporidium Giardia Lamblia AKA - Beaver Fever /
Montezuma’s Revenge, etc.
In substantial numbers may cause mild illness, severe illness or death‘Divide and Multiply’ and Make you sick for a few days or a few weeks
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Chemical Pollutants – Which are the Riskiest?
Spilled Gasoline?Herbicides?Pesticides?Poisons?Nitrogen?Greenhouse Gases?
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Chemical Pollutants – Which are the Riskiest?
Spilled Gasoline?Herbicides?Pesticides?Poisons?Nitrogen?Greenhouse Gases?
Decomposes w O2Risky but…Risky but…Risky but…Risky.. Dilution onlyGreenhouse Gases?… that’s another story
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Multi-barrier ApproachIf it’s good enough for Canadian Roofing
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Drinking Water Multi-Barriers
Protect and Test the water sourceTest and Treat the Raw waterClean and Disinfect the WaterMonitor / Alarm the Water 24/7 Monitor / Alarm the Reservoirs 24/7Create a redundant water piping systemMonitor water in the distribution systemTest all points every 24/7, daily & weekly
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Wastewater Treatment
Working with nature to clean dirty water…
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Cleaning Waste Water... What’s the worst…
Poop ‘n PaperPaintChemicalsSoapsInsecticidesPetroleumArsenicStones/Sticks
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Wastewater Before and After
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Cleaning WastewaterScreening – tires, 2x4’s, nylonsGrit Removal – more stones and sandSeparating Solids from Liquids Settle Solids and send solids to ‘digest’ Add bacteria to the remaining liquid and
create a warm feeding and reproductive frenzy
Settle out the fat bacteria families and send them to ‘digest’ (and create methane)
Treat and filter remaining bacteria
Return clarified waste water to nature
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Topics in the News?
What happened in Walkerton, Ontario?
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Walkerton – Who Messed Up?
Who was at fault?
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Justice O’Connor Called for change by…
By the Province of OntarioBy all Municipalities and Water UtilitiesBy the Supervisors / Operators….and he called for a multi-barrier approach with increased training, double checking and governance with professional and governmental oversight…
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Other Issues…Is Sewage in the Ottawa River?Flooded basements in Kanata? Orleans?Are people bathing in sewage in Developing Countries? India? Haita – Cholera? Is there a lack of Clean water in Canadian Aboriginal reserves?Is drinking water safe when it’s from a school water fountain?