Santoy Lake

Lower than usual

Water level is a bit below the typical range for mid-September and falling.

Low (6.73m)Normal rangeHigh (7.95m)

Current Weather

2d ago

12°CMainly Sunny

Wind NNE 15 km/h

Humidity 56%

Mainly sunny

Environment Canada — Nipigon - Marathon - Superior North

vs. Last Year

No data available

7-Day Trend

↓Falling

Down 2.3 cm over the past week

-2.3 cm over 7 days

Seasonal Position

18th percentile

Based on 22 years of records

Seasonal Outlook

Typical next 7 days

This lake usually rises slightly over the next week.

Typical next 14 days

Over two weeks, levels typically rises moderately.

Tracking

This year is moving slower than usual.

Based on 22 years of seasonal patterns. Moderate historical coverage. This is a historical seasonal pattern, not a forecast.

Fish Consumption Advisories (3 species)

The following consumption advisories are in effect for fish caught in Santoy Lake.

Lake Whitefish

Contaminant	Size	General pop.	Sensitive pop.
Mercury	20-25 cm	12/month	4/month
Mercury	25-30 cm	12/month	4/month
Mercury	30-35 cm	12/month	4/month
Mercury	35-40 cm	12/month	4/month
Mercury	40-45 cm	12/month	4/month
Mercury	45-50 cm	12/month	4/month
Mercury	50-55 cm	12/month	4/month

⚠Northern Pike

Contaminant	Size	General pop.	Sensitive pop.
Mercury	45-50 cm	4/month	Do not eat
Mercury	50-55 cm	4/month	Do not eat
Mercury	55-60 cm	4/month	Do not eat
Mercury	60-65 cm	2/month	Do not eat
Mercury	65-70 cm	2/month	Do not eat
Mercury	70-75 cm	2/month	Do not eat
Mercury	>75 cm	Do not eat	Do not eat

White Sucker

Contaminant	Size	General pop.	Sensitive pop.
Mercury	35-40 cm	16/month	8/month
Mercury	40-45 cm	16/month	8/month
Mercury	45-50 cm	16/month	4/month
Mercury	50-55 cm	16/month	4/month

Source: Guide to Eating Ontario Fish (2025). Advisory data is updated annually.

Lake Profile

Est. average depth33.0 m

Estimated from HydroLAKES v1.0 (Messager et al., 2016). Modeled geo-statistical estimate, not a direct survey measurement.

Boat Launches (1)

Santoy Public Boat Launch

2.7 kmParking

Map ↗

Source: Ontario MNR Fishing Access Points. Verify conditions before visiting.

Water Level — Last 30 Days

Technical details

Current level: 6.81 m
Reference value: 6.81 m (rolling_6h_mean)
Percentile for date: 18th percentile
Years of record: 22
Source station: STEEL RIVER BELOW SANTOY LAKE (02BA006)
Est. average depth: 33.0 m
Relationship type: lake_outlet
Mapping confidence: medium
Today's normal range: 6.85–7.14 m
Same-date historical range: 6.73–7.95 m
30-day change: -2.3 cm
Data confidence: medium
Observed at: Sep 20, 2026
Last snapshot: Sep 20, 2026

Data source: ECCC Water Office — Station 02BA006. Water level readings are provisional and subject to revision. This is not a navigation or flood-warning service.