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Water system Orangeville Drinking Water System

Municipal drinking-water system

Worth a closer look

Recent public records include a few items that deserve attention.

1 Conviction match

Name-matched only — open details before drawing conclusions

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4 Over-limit tests

Arsenic, Total coliform · over the last 4 years

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▸ How to read these numbers

Conviction matches. Matching is by name only. Read the detailed records before treating this as a conclusion about this system.
Over-limit tests. That is a regulatory flag in the public record. A count alone does not say how long a result lasted, whether it was retested, or that every tap in the building was affected. Open the detailed records for timing and context.

Worth knowing day to day

Plant averages from the provincial monitoring program (not this year’s report and not your kitchen tap). When enough samples exist from 2019 onward, we prefer that recent window and compare it to the longer record.

Hardness · 310 mg/L as CaCO3 Very hard water · soft <60 · hard 60–180 · very hard >180 mg/L

Longer-term only (too few samples from 2019 onward) · 1998–2015 · 28 samples

More scale on kettles, faucets, and appliances. Soap often lathers poorly.

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Sodium level · 43.6 mg/L Above the diet notice level · diet notice 20 · taste ≤200 mg/L

Longer-term only (too few samples from 2019 onward) · 2011–2015 · 11 samples

People on a low-sodium diet may want to know this. Ask a clinician for personal advice.

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Chloride · 47 mg/L Typical levels · taste ≤250 mg/L (Ontario)

Longer-term only (too few samples from 2019 onward) · 1998–2018 · 40 samples

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Nitrate + Nitrite · 1.38 mg/L as N Typical levels · standard 10 mg/L as N (Ontario)

Longer-term only (too few samples from 2019 onward) · 2003–2022 · 32 samples

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Fluoride · 0.12 mg/L Typical levels · target 0.5–0.8 · max 1.5 mg/L

Longer-term only (too few samples from 2019 onward) · 1998–2018 · 40 samples

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pH balance · 6.9 In the usual range · usual 6.5–8.5 (Ontario)

Recent average · 2019–2020 · 6 samples

Recent 2019–2020 · In the usual range · 6.9 · Same band as longer term Longer term · In the usual range · 7.7 · 2003–2020 · 64 samples

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Next steps

How to read this record → Ask your municipality →

What's behind these numbers

Years covered: 2024-25, 2023-24, 2022-23, 2021-22.

What the numbers refer to

Over-limit tests

Regulatory flags when a monitored result was above an Ontario standard. A count alone does not say how long a result lasted or that every tap was affected.

4 over-limit tests in recent records.

14,824 recent test results processed.
Parameters involved: Arsenic, Total coliform.

Incident records

Incident records are required system filings — not a count of taps affected, and not automatically a drinking-water emergency.

26 incident records in public records — not a count of taps affected.

Conviction matches

Matching is by name only. Read the detailed record before treating this as a conclusion about this system.

Matched conviction records: 1.

Conviction matches use exact name matching only; an absence here means no matched conviction record in the recent local summary data, not a proven absence of any conviction.

Other public-record context

Inspection history

Provincial inspection scores have varied between years — see the percentages below.

MRS inspection ratings in recent years: 88.1%, 90.0%, 98.1%, 95.5%.
Inspection ratings come from the MRS Inspection Rating Water Quality table.
Other recent records include: 4 over-limit tests and 26 incident records.

Inspection ratings summarize provincial inspections, not every individual test.

Owner and operator context

Owner: Orangeville, The Corporation Of The Town Of

Evidence

Owner on record: ORANGEVILLE, THE CORPORATION OF THE TOWN OF (Owner Legal Name, Test Results).

Operating authority was not present in the local records we processed.
Contact details (phone, website, email) are not available in the local provincial open-data files we processed.

Nearby reports

Other public records related to Orangeville.

MONO CLIFFS OUTDOOR EDUCATION CENTRE WELL SUPPLY (system)

Confidence: high

Why shown: Direct DWS number and system-name match.

Limitation: This is a related public-record result, not a confirmed household service-boundary match.
KERRY'S PLACE AUTISM SERVICES(HURONTARIO) WELL SUPPLY (system)

Confidence: high

Why shown: Direct DWS number and system-name match.

Limitation: This is a related public-record result, not a confirmed household service-boundary match.
R243 ST ANDREW SEP. S (6035) (system)

Confidence: high

Why shown: Direct DWS number and system-name match.

Limitation: This is a related public-record result, not a confirmed household service-boundary match.
R243 ST ANDREW SEP. S (6035) (school)

Confidence: high

Why shown: System category is 'Public School': building water record.

Limitation: School/child-care records reflect building plumbing tests, not operation of a municipal treatment plant.
R243 ST BENEDICT (9484) (system)

Confidence: high

Why shown: Direct DWS number and system-name match.

Limitation: This is a related public-record result, not a confirmed household service-boundary match.
R243 ST BENEDICT (9484) (school)

Confidence: high

Why shown: System category is 'Public School': building water record.

Limitation: School/child-care records reflect building plumbing tests, not operation of a municipal treatment plant.

Reports related to this area, grouped by municipality field. Not a confirmed household service-boundary match.

About this record set

Data coverage

Based on public records for 4 recent fiscal years: 2024-25, 2023-24, 2022-23, 2021-22.

Covers recent fiscal years only; older years are not summarized here.

Record identifiers

System number:: 220003252
System category:: LMRS (Municipal drinking-water system)
Owner on record:: ORANGEVILLE, THE CORPORATION OF THE TOWN OF
Public health unit:: WELLINGTON-DUFFERIN-GUELPH HEALTH UNIT
Regulation:: Reg 170/03