Water Quality
The Maine Department of Environmental Protection (ME-DEP) and the Volunteer Lake Monitoring Program (VLMP) have collaborated in the collection of lake data to evaluate water quality, track algal blooms, and determine water quality trends. This information does not include data for bacteria, mercury, toxics or nutrients other than phosphorus. Phosphorus is considered the primary limiting nutrient for algal growth in Maine lakes.

Water quality monitoring data sets for Crescent Lake have been collected since 1974. During this period, 12 years of basic chemical information was collected in addition to Secchi Disk Transparencies (SDT). In summary, the water quality of Crescent Lake is considered above average based on measures of SDT, total phosphorus (TP), and Chlorophyll-a (Chla). The potential for nuisance algal blooms on Crescent Lake is moderate.
​This and additional information can be found on LakesOfMaine.org.

Water Quality Results 2019
7-11-19 Test Results Click Here
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VLMP Lakes of Maine Comprehensive Science & Resource Center Information

Lake Overview

General Description of Crescent Lake, Click Here.

Water Quality

Charts displaying the values of water quality indicators for Crescent Lake. Click Here. 

Transparency

​Secchi Disk measurements of water transparency (how clear the water is). This simple test can characterize lake water quality and identify changes over time. Click Here.

Dissolved Oxygen & Temperature

​An adequate supply of dissolved oxygen (DO) in lake water is essential to fish and other aquatic life forms. DO is a sensitive indicator of lake water quality. Click Here.

Chemistry

​Data sets for the overall mean values for each water quality parameter. (Overall means are average of annual means.) Links are provided to view annual averages and date-specific data. Click Here.

Lake Life

​Crescent Lake supports a complex web of life from tiny zooplankton and algae, to plants, invertebrates, fish and birds. On the these pages you will find available data on fish, plants, loons, mussels & crayfish and aquatic invaders. Click Here.​

Monitoring

Meet our certified water quality monitors and invasive plant patrollers. Click Here.

Documents & Data Sets

The ​documents and data sets on this page are items from the Knowledge Base library that include information about Crescent Lake. Note that other lakes may also be included in these items, particularly the data sets. Click Here.