Where is Nadsilnich Lake?

Nadsilnich Lake is a lake in Lower Chilako River, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.

Nadsilnich Lake

Lower Chilako River, British ColumbiaView map Directions

ENV publishes the water-quality measurements for Nadsilnich Lake. Here is what has been measured.

Clarity

1.6 m

Murkier than most

Secchi · sampled 2026

Phosphorus

29.6 µg/L

More phosphorus than most

Measured by ENV

Chlorophyll-a

10 µg/L

More algae than most

Measured by ENV

Limited data

See the measurements Directions Where to stay

Nadsilnich Lake in Lower Chilako River, British Columbia has water-quality measurements published by ENV, shown here as reported. Water clarity: 1.6 m visibility. Phosphorus: 29.6 µg/L. Chlorophyll-a (algae): 10 µg/L.

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Nadsilnich Lake is a lake in Lower Chilako River County, British Columbia.

Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2026-08-12. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Nadsilnich Lake is safe to swim in today is a call for the British Columbia Ministry of Environment and Parks and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Nadsilnich Lake

These are the measurements ENV publishes for Nadsilnich Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Murky, only visible to about 5.3 ft. Phosphorus 29.6 µg/L. Chlorophyll-a 10 µg/L. TSI 53.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	1.61m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	29.6µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	10µg/L	Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	53	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

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Answers come straight from the public measurements and survey records on this page.

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Fishing Nadsilnich Lake

→ Nadsilnich Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Lower Chilako River

Norman Lake20.7 miView →Bednesti Lake23.3 miView →Naltesby Lake2.6 m clear26.9 miView →Tabor Lake2.2 m clear19.2 miView →Summit Lake2.5 m clear40.2 miView →Puntchesakut Lake2 m clear50.7 miView →

Frequently asked questions about Nadsilnich Lake

Where is Nadsilnich Lake?: Nadsilnich Lake is a lake in Lower Chilako River, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.
What is the water quality of Nadsilnich Lake?: Nadsilnich Lake in Lower Chilako River, British Columbia has water-quality measurements published by ENV, shown here as reported. Water clarity: 1.6 m visibility. Phosphorus: 29.6 µg/L. Chlorophyll-a (algae): 10 µg/L.
Is Nadsilnich Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.