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A buyer's offer on a rural home is conditional on a satisfactory well water test, and the seller suggests using the free Public Health Ontario laboratory test. What does that test check for?

Correct Answer

C) Only E. coli and total coliform bacteria

Public Health Ontario tests private drinking water for the bacterial indicators of contamination, E. coli and total coliforms, and states that it does not test for other contaminants such as chemicals. A clean result therefore does not prove the water is safe from chemical contamination, and the sample must be tested within 48 hours of collection.

Answer Options
A
Bacteria, nitrates, lead and all other chemical contaminants
B
Only the well's flow rate and water pressure
C
Only E. coli and total coliform bacteria
D
Radon gas and uranium levels in the groundwater

Why This Is the Correct Answer

Public Health Ontario's page says it tests for E. coli and total coliforms and does not test for chemicals.

Why the Other Options Are Wrong

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Key Terms

well water testE. colicoliformsPublic Health Ontariorural
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