Hazardous chemical management

Protecting our drinking water starts upstream

Clean, safe water matters to all of us. Our drinking water source, the Grand River, can be harmed by spills or improper handling of certain chemicals found in everyday products. Some of these chemicals are toxic even in small amounts and can be very difficult and costly to clean up once they reach soil, groundwater, or storm drains.

How to protect our drinking water supply

Store and handle safely

  • Store chemicals indoors, at room temperature, in tightly sealed containers
  • Keep containers upright and away from floor drains, sump pumps, and heat sources
  • Follow label instructions for use, ventilation, and protective equipment
  • If working outside, take extra care to prevent spills

Reduce what you buy and store

  • Plan carefully and purchase only the amount you need
  • Ask retailers/suppliers about less hazardous alternatives

Prevent and clean up vehicle-related spills

  • Maintain your vehicle to prevent fluid drips and leaks
  • If a spill happens, use kitty litter or another absorbent to soak it up right away
  • Do not hose spills into the street or storm drain
  • Use free Household Hazardous Waste (HHW) events to dispose of leftovers safely

Why some chemicals are especially risky

Some chemicals behave differently in the environment. Two groups are of particular concern because they can persist and spread in ways that make cleanup difficult.

High-risk chemical groups - DNAPLs (Dense Non-Aqueous Phase Liquids)

DNAPLs (pronounced “dee-napples”) are heavier than water, so they sink. They can also be slightly soluble, meaning they don’t break down easily in water. If released, DNAPLs can move below the water table making them hard to detect and remove.

Chemicals of concern (DNAPLs):

  • 1,4-Dioxane
  • Tetrachloroethylene (PCE) / Perchloroethylene (PERC)
  • Trichloroethylene (TCE) (or chemicals that can degrade into TCE)
  • Polycyclic Aromatic Hydrocarbons (PAHs)
  • Vinyl chloride (or chemicals that can degrade into vinyl chloride)
Organic solvents

Organic solvents are carbon-based substances used to dissolve or disperse other materials. Some can pose significant risks if spilled or mishandled.

Chemicals of concern (Organic solvents):

  • Carbon Tetrachloride
  • Chloroform
  • Methylene Chloride (Dichloromethane)
  • Pentachlorophenol
Where these chemicals may be found

These chemicals can be present in common products used at home or work, including:

  • Adhesives, cleaners, and some nail polish removers
  • Wood preservatives and treating oils
  • Products used to clean metal and electronics
  • Automotive repair products and degreasers
  • Paint removers, furniture strippers, and varnishes
  • Spot removers, dry-cleaning chemicals, and rug-cleaning fluids

Tip: Always read product labels and follow the manufacturer’s storage and handling instructions. Workplace users can also consult the product’s Safety Data Sheet (SDS)

Report spills immediately

Fast reporting protects people, property, and the environment.

To report a spill anytime, please call 519-759-4150. Visit our Spills page for more information.