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LakeQuality

Cleaner Lakes Than Lac Aux Grelots

5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.

Lac Aux Grelots carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. Lac Poulin (Beauce-Sartigan County, Grade A, 12.3 mi away) is the closest meaningful upgrade.

Reviewed by LakeQuality Editorial Team · Updated
1
A

Lac Poulin

Beauce-Sartigan County, Québec · 12.3 mi from Lac Aux Grelots
  • +Two grade letters higher (C → A)
  • ++13.6 ft water clarity
  • +Lower phosphorus (4.3 vs 27 µg/L)
2
A

Petit Lac Lambton

Le Granit County, Québec · 7.4 mi from Lac Aux Grelots
  • +Two grade letters higher (C → A)
  • ++9.5 ft water clarity
  • +Lower phosphorus (7.4 vs 27 µg/L)
3
A

Lac Aux Cygnes

Beauce-Sartigan County, Québec · 11.2 mi from Lac Aux Grelots
  • +Two grade letters higher (C → A)
  • ++5.9 ft water clarity
  • +Lower phosphorus (8.7 vs 27 µg/L)
4
A

Lac Rond

Beauce-Sartigan County, Québec · 11.8 mi from Lac Aux Grelots
  • +Two grade letters higher (C → A)
  • ++6.4 ft water clarity
  • +Lower phosphorus (9.7 vs 27 µg/L)
5
A

Lac Ruel

Le Granit County, Québec · 11.8 mi from Lac Aux Grelots
  • +Two grade letters higher (C → A)
  • ++9.2 ft water clarity
  • +Lower phosphorus (7.8 vs 27 µg/L)

Reading the cohort

5 cleaner lakes sit within 30 miles of Lac Aux Grelots in the EPA water-quality dataset. With that many higher-grade neighbors close by, Lac Aux Grelots's Grade C reflects something specific to the lake itself — not a regional water-quality ceiling. The neighbor list below isn't a small set of marginal upgrades; it's a real cohort of meaningfully cleaner choices for the same Québec weekend.

Lac Poulin (Beauce-Sartigan County, Grade A) is the closest cleaner option at 12.3 miles from Lac Aux Grelots — close enough to be a genuine substitute for most users, far enough that it isn't the same neighborhood lake. Worth the trip if water quality is the primary driver; less obvious if Lac Aux Grelots is on the way to other plans.

The EPA water-quality grading combines clarity (Secchi depth), phosphorus, and chlorophyll-a measurements from state environmental sampling. A higher letter grade reflects measurably cleaner water on those indicators, not subjective beauty or access quality — a Grade A lake might have worse boat-launch facilities or shoreline access than a Grade C neighbor, so the ranking is one input alongside the rest of trip planning. See the methodology page for the full grading formula.

How this list is built

Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.

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