Amos, Quebec

Arsenic: 2 of 31 · Barium: 0 of 31 · Fluoride: 0 of 30 · Manganese: 11 of 34 · Uranium: 0 of 21 sampled wells above the Quebec standard. Updated 2026-10-17. Source : PACES Laurentides-Les Moulins (2025-04 file); PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database.

What wells in this municipality measured in the provincial PACES groundwater surveys. A local picture only: test your own well to know your water.

Arsenic

2 of 31 sampled wells (6%) had a latest result above the Quebec standard of 0.01 mg/L.

Median (latest per well): 0.0012 mg/L
90th percentile: 0.0044 mg/L
Highest: 0.019 mg/L
Non-detects: 1 well(s) had a latest result of "not detected" with no detection limit reported; they are counted as below the standard.
Undated: 3 well(s) have no usable sample date; their highest result is used.
Samples: 32, 2006-08-23 to 2011-10-28
Source: PACES Laurentides-Les Moulins (2025-04 file); PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database (CC-BY 4.0), downloaded 2026-10-17
Standard: Règlement sur la qualité de l’eau potable, annexe 1

Barium

0 of 31 sampled wells (0%) had a latest result above the Quebec standard of 1 mg/L.

Median (latest per well): 0.0088 mg/L
90th percentile: 0.022 mg/L
Highest: 0.093 mg/L
Undated: 3 well(s) have no usable sample date; their highest result is used.
Samples: 32, 2006-08-23 to 2011-10-28
Source: PACES Laurentides-Les Moulins (2025-04 file); PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database (CC-BY 4.0), downloaded 2026-10-17
Standard: Règlement sur la qualité de l’eau potable, annexe 1

Fluoride

0 of 30 sampled wells (0%) had a latest result above the Quebec standard of 1.5 mg/L.

Median (latest per well): 0 mg/L
90th percentile: 0.2 mg/L
Highest: 0.2 mg/L
Undated: 2 well(s) have no usable sample date; their highest result is used.
Samples: 31, 2006-08-23 to 2011-10-28
Source: PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database (CC-BY 4.0), downloaded 2026-10-17
Standard: Règlement sur la qualité de l’eau potable, annexe 1

Manganese

11 of 34 sampled wells (32%) had a latest result above the Quebec standard of 0.12 mg/L.

Median (latest per well): 0.034 mg/L
90th percentile: 0.28 mg/L
Highest: 1.3 mg/L
Undated: 3 well(s) have no usable sample date; their highest result is used.
Samples: 36, 1976-11-17 to 2011-10-28
Source: PACES Laurentides-Les Moulins (2025-04 file); PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database (CC-BY 4.0), downloaded 2026-10-17
Standard: Règlement sur la qualité de l’eau potable, annexe 1

Uranium

0 of 21 sampled wells (0%) had a latest result above the Quebec standard of 0.02 mg/L.

Median (latest per well): 0 mg/L
90th percentile: 0 mg/L
Highest: 0.0079 mg/L
Non-detects: 2 well(s) had a latest result of "not detected" with no detection limit reported; they are counted as below the standard.
Undated: 3 well(s) have no usable sample date; their highest result is used.
Samples: 22, 2009-07-29 to 2011-10-28
Source: PACES Laurentides-Les Moulins (2025-04 file); PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database (CC-BY 4.0), downloaded 2026-10-17
Standard: Règlement sur la qualité de l’eau potable, annexe 1

Includes domestic, municipal and monitoring wells. Total and dissolved results both count. Non-detects count only when the lab's detection limit is at or below the standard. Method: data rules.

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