Nepahwin Lake

Quality Characteristics

Spring Phosphorus Results
The 2023 spring phosphorus value for Lake Nepahwin is 25.5 µg/L. The average total spring phosphorus for Lake Nepahwin since 2001 is 15.11 µg/L which falls below the Provincial Water Quality Objective of  20.0 µg/L and indicates that this lake is mesotrophic.

For more detailed information, download the graph illustrating the spring phosphorus levels in Lake Nepahwin from 2001 to 2023 (PDF 82 KB).

Shoreline Classification Project

For more information on Nepahwin Lake shoreline, view the waterfront property map.

What colour is your shoreline?

General Information

Lake Nepahwin has 1822 permanent residents and 3 seasonal/recreational residents.

Location & Lake Characteristics
Lake Nepahwin is located in McKim township. Lake Nepahwin is 127.0 hectares in size and has a shoreline perimeter of 11.8 kilometres. The maximum depth is 22 metres.  For more information, view maps of Lake Nepahwin.

Watershed Information
Lake Nepahwin is located in the Ramsey Watershed. For more information on the watershed, visit the Watershed Map link.

Lake Stewardship
Nepahwin Lake is home to the Nepahwin Lake Watershed Stewardship Group, their website can be found here.

Biological Characteristics

Fish Species
View the list of Lake Nepahwin's documented fish species.

Aquatic Insects
View the list of the documented aquatic insects in Lake Nepahwin.

Aquatic Plants
View the list of the documented aquatic plant species in Lake Nepahwin.