Water Quality Reports

Water Quality Reports


Reports are readily available for the past five years on the website, with additional reports available upon request

Please select a category to view documents related to specific programs, policies and procedures.
2025 Grand Lake Adaptive Management Annual Report

Annual report by the Grand Lake Adaptive Management Committee on Grand Lake Clarity.

2024 Grand Lake Adaptive Management Annual Report

Annual report by the Grand Lake Adaptive Management Committee on Grand Lake Clarity.

2023 Grand Lake Adaptive Management Annual Report

Annual report by the Grand Lake Adaptive Management Committee on Grand Lake Clarity.

2022 Grand Lake Adaptive Management Annual Report

Annual report by the Grand Lake Adaptive Management Committee on Grand Lake Clarity.

2021 Grand Lake Adaptive Management Annual Report

Annual report by the Grand Lake Adaptive Management Committee on Grand Lake Clarity.

Please select a category to view documents related to specific programs, policies and procedures.
2024 Operational and Water Quality Summary Report for the Three Lakes

Annual water-quality assessment in the Three Lakes System (Granby Reservoir, Shadow Mountain Reservoir and Grand Lake).

2020 Operational and Water Quality Summary Report for the Three Lakes

Annual water-quality assessment in the Three Lakes System (Granby Reservoir, Shadow Mountain Reservoir and Grand Lake).