Help Protect
Maine Lakes

Water Quality Resources

Water Quality ResourcesSecchi Disk

Weekly Water Quality Check-In Sessions (for 2020 season)

Beginning Friday, July 17th, 2020 at 10:00AM, LSM staff will conduct a weekly open-session opportunity for certified lake water quality monitors to check in (via Zoom) to discuss any questions, comments or observations that you may have pertaining to your lake monitoring work. For those of you with insufficient bandwidth for online video meetings, you have the option to call in, as well (phone information will be included in your registration confirmation email).  These sessions will be informal, and will provide you with an opportunity to speak directly with LSM staff.

A few examples of the types of topics that may be discussed include, but are not limited to:

  • Observations of recent conditions on/in your lake
  • Problems or questions regarding your monitoring equipment
  • Discussion / interpretation of your (and historical) lake data
  • Any unusual phenomena you may have recently observed
  • Whether or not the pandemic has interfered with your ability to monitor your lake this summer

You are welcome to attend as many of the sessions as you like throughout the summer. We will be there!

The sessions are scheduled to take place from 10-11AM on Friday mornings through the end of September. However, the moderators will have the option to continue individual sessions beyond 11AM, if there is interest among participants.

Pre-registration is required, so please use this link to sign up. 

Simulator ButtonOnline Secchi Simulator

Annual re-certification is now required on the Secchi Simulator. Your login should be included in your spring packet or contact the LSM office at 783-7733.

Water Quality Workshops

Find a Re-certification Workshop near you: Water Quality Workshops

Maine Lake Data

The Lakes of Maine website hosts all of the lake data our volunteers collect. Find out more about the data we have available at


Lake Pages

Looking for your QA Certification # or Lake MIDAS#?
How about your lake report or depth maps? Check out your individual Lake Page.

You’ll find information about your lake, including water quality data, maps, volunteer lists, past plant surveys and a link to local weather.

Additional Resources:

Manuals and Guides to Reduce Water Pollution

Contact information

Contact us at:     Phone: 207-783-7733       Email:

Hours of visitation at LSM Office:
  Mondays 9:00am - 3:00pm         Wednesdays 9:00am - 3:00pm
  Thursdays 11:00am - 3:00pm       Or by appointment

Our Mission

Lake Stewards of Maine (LSM) works to protect Maine lakes and to promote lake stewardship through widespread citizen participation in the gathering and dissemination of credible scientific information pertaining to lake health.


LSM is a non-profit 501(c)(3) organization committed to the collection of information pertaining to lake water quality. For 50 years, trained volunteers throughout Maine have donated their time so that we may all learn more about one of Maine’s most beautiful and important resources — our lakes.