Executive Summary:
The Winter LakeKeepers program, launched in 2018-2019, has grown into ALMS’s largest monitoring initiative, engaging volunteers in winter lake monitoring across Alberta. This citizen science program enables participants, including WPACs, WSGs, ice anglers, and partner organizations, to monitor lakes of personal or community concern. By 2022-2023, the program expanded to include advanced sampling methods, such as white ice thickness and under-ice light measurements, and offered three tiers of protocols to suit varying experience levels.
The Winter LakeKeepers program in 2024-2025 collected samples at 44 lakes (Map 2). In total, 107 monitoring trips were completed by 95 participants across most of the major watersheds, including: Athabasca River, Battle River, Beaver River, Bow River, North Saskatchewan River, Oldman River and Peace River. Sampling began on December 2nd, and the final sampling event occurred on April 9th.
The 2024-2025 Winter LakeKeepers program was made possible by the Alberta Conservation Association’s (ACA) and Cabela’s Pro Bass Shops Outdoor Fund.


For detailed program Methods, please visit Winter LakeKeepers Methods
For Results, see below. Please also visit the Gordon Foundation’s DataStream for raw data.
Please view our Brief Intro to Limnology to help improve your understanding of the following report.
Land Acknowledgment:
We respectfully acknowledge that our work takes place on the traditional territories of Canada’s First Peoples, including the Cree, Dene, Blackfoot, Saulteaux, Nakota Sioux, Inuit, and the Otipemisiwak Métis Government representing the Métis Nation within Alberta, as well as the many Métis Settlements. The lakes we monitor are located within these territories, and we honor the enduring connection of Indigenous communities to the lands, waters, and sky. We are committed to fostering respect, reconciliation, and meaningful partnerships with all Indigenous communities through our programs as we monitor and protect these vital natural resources together.
Map 1. Winter LakeKeepers Annual Program Growth

Map 2. Winter LakeKeepers 2024-2025 Sample Sites

Winter LakeKeepers 2024-2025 Nutrients:
Figure 1. Average surface chlorophyll-a (µg/L) from lakes sampled during the Winter LakeKeepers 2024-2025 season. The "n" value beside each bar indicates the number of samples. Samples were collected at a depth of 0.5 m between December to April. Chlorophyll-a concentrations for Baptiste Lake, Kehewin Lake, Lesser Slave Lake, Wizard Lake, and Wabamun Lake, were averaged when samples were collected from multiple locations across the lake.
Figure 2. Average surface total phosphorus (µg/L) from lakes sampled during the Winter LakeKeepers 2024-2025 season. The "n" value beside each bar indicates the number of samples. Samples were collected at a depth of 0.5 m between December to April. Total phosphorus concentrations for Baptiste Lake, Kehewin Lake, Lesser Slave Lake, Wizard Lake, and Wabamun Lake were averaged when samples were collected from multiple locations across the lake.
Figure 3. Average surface total ammonia (µg/L) from lakes sampled during the Winter LakeKeepers 2024-2025 season. The "n" value under each bar indicates the number of samples. Samples were collected at a depth of 0.5 m between December to April. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L indicated by the dotted red line. Total ammonia concentrations for Baptiste Lake, Kehewin Lake, Lesser Slave Lake, Pigeon Lake, Wizard Lake, and Wabamun Lake, were averaged when samples were collected from multiple locations across the lake.
Winter LakeKeepers 2024-2025 Temperature & Dissolved Oxygen Profiles:
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Water temperature (Temp; °C) and dissolved oxygen (DO; mg/L) profiles were measured using a YSI probe at lakes sampled during the Winter LakeKeepers 2024-2025 season. Measurements were collected at 0.1 m, 0.5 m, and then at 1-meter intervals to the lake bottom. For visual clarity, only values from 1 m depth downward are displayed in the figure.
Winter LakeKeepers 2024-2025 Ice Thickness:
Figure 1a. Observed total ice thickness (cm) from lakes sampled under Winter LakeKeepers between December to April 2024-2025. Ice thickness measurements for Baptiste Lake, Kehewin Lake, Lesser Slave Lake, Wizard Lake, and Wabamun Lake, were averaged when samples were collected from multiple locations across the lake.
Figure 1b. Observed total ice thickness (cm) from lakes sampled under Winter LakeKeepers between December to April 2024-2025. Ice thickness measurements for Baptiste Lake, Kehewin Lake, Lesser Slave Lake, Wizard Lake, and Wabamun Lake, were averaged when samples were collected from multiple locations across the lake.
Figure 2. Maximum observed ice thickness (cm) for lakes sampled during the Winter LakeKeepers 2024–2025 season. The ‘n’ value below each bar indicates the number of samples collected, and the date represents when the maximum ice thickness was recorded. For lakes with multiple sites sampled, the following sites recorded the maximum ice thickness: Baptiste Lake – North Basin; Kehewin Lake – Southside; Lesser Slave Lake – Joussard; Wabamun Lake – Sundance Meadows; and Wizard Lake – West Basin.
Winter LakeKeepers 2024-2025 Results Summary Table:
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Results from the Winter LakeKeepers 2024-2025 program, with exceedances indicated in red. “NH₃” represents total ammonia levels. Ammonia exceedances were determined using a pH of 8.5 and a water temperature of 5°C, calculated according to the Protection of Aquatic Life (PAL) guidelines, with an exceedance threshold of 502 µg/L.
Winter LakeKeepers 2024-2025 Field Photos:
Beauvais Lake, AB
Burnstick Lake, AB
Calling Lake, AB
Calling Lake, AB
Chestermere Lake, AB
Chestermere Lake, AB
Crane Lake, AB
Crane Lake, AB
Fork Lake, AB
Fork Lake, AB
Garner Lake, AB
Garner Lake, AB
Hutchinson Lake, AB
Hutchinson Lake, AB
Lake Louise, AB
Lake Louise, AB
Pigeon Lake, AB
Pigeon Lake, AB
Students working at Pond 15 near Old's College
Students working at Pond 15 near Old's College
West River’s Edge Park Pond, AB






























































































What has the monitoring results of the plan and of the indicators shown? Is there a need to modify the plan? It is important that the lake watershed management plan does not just sit on a shelf. Information gaps should be addressed, action items need to be managed, completed, and evaluated to best address the needs of the lake. Always keep in mind the vision: if the actions taken are not bringing the lake closer to that vision, then the plan needs to be modified. Consider updating both the state of the watershed and the lake watershed management plans at regular intervals to make sure that the actions taken were achieving the desired outcomes and to evaluate what work still needs to be done.
Reporting is an essential component of any watershed management planning and implementation process. There are two main types of reporting that should be shared with stakeholders on a regular basis: implementation reporting & effectiveness reporting.
The development of a lake watershed management plan provides the guidance needed to implement activities, but the plan cannot be static. Monitoring the performance of your management actions is essential to understanding whether your goals have been met, and whether further actions are needed. Monitoring and evaluating the implementation and effectiveness of a lake watershed management plan allows assessment of progress towards the goals and objectives of the plan, identification of problems and opportunities, and a collection of critical information required when performing a 5 or 10 year review of the plan.
Once a plan has been approved by all affected sectors and officially endorsed and released by the steering committee, then implementation can begin in full. Action projects can be large and comprehensive, or made smaller by staging projects over time or into modules that can be tackled one at a time. Fundraising is an issue that many community groups may find intimidating, but experience with programs such as the Pine Lake Restoration Program (see
The members of the steering committee will continue to play a strong role in facilitating and tracking implementation actions. This includes any actions they were responsible for, as well as tracking other committees and sector’s actions and progress made towards achieving the plan’s outcomes. Ongoing communication is essential to successful implementation and achieving outcomes, therefore a regular reporting mechanism could be set up in order to provide regular evaluation of the plan.
There is no limit to the number or types of lake management actions, but they typically fall into the categories on the right.



This graphic describes how the various committees and groups will work and interact together. The circle size depicts the approximate number of people involved, and the circles overlapping indicates that some individuals may reside in all of the circles and participate in multiple committees as part of the planning process. The technical committee is shown as an arrow, indicating that it is independent and has relatively few people, and yet it interacts with all of the groups. This graphic may look different depending on the lake and the people involved, and a detailed structure should be agreed upon and described in the plan’s Terms of Reference (Step 6).
Helpful resources