Dissolved Oxygen Data Forms & Procedures

D.O./Temp. Water Quality Monitor Forms & Procedures

Taking a Dissolved Oxygen Profile

Dissolved Oxygen/Temperature water quality monitors receive training to become certified and follow strict protocols, ensuring the quality and high value of the data they collect. Below are instructions and field sheets used by Dissolved Oxygen monitors.

Each spring as a volunteer you receive a packet with new field sheets, mailing instructions and personalized information, including your Secchi Simulator login.

Instructions for DO Monitors

Dissolved Oxygen Meter Guidelines

The following table is to be used by volunteer lake monitors who measure temperature and dissolved oxygen (DO) levels in their lakes. This information is supplemental to material presented during DO training and certification workshops, as well as instructions for the calibration and operation of individual dissolved oxygen meters.

Maximum Dissolved Oxygen Concentration Saturation Table

Wet Kit Reagents

Instructions for measuring Secchi Disk Transparency

Instructions for Total Phosphorus Sampling

Is your Secchi reading less than 2.5m?  Call it in to VLMP at 207-783-7733.  Please include your name, lake and date of the reading.

Field Sheets

Notice Do Not Print Field Sheets on Inkjet Printers. Field sheets must be completed in the boat at the time of your readings. There is a good chance your forms will get wet and inkjet printing runs when wet. Please use a laser printer or contact the VLMP office and we will gladly mail you extra data forms.

D.O. Monitor Field Sheet
DO Field Sheet

Dissolved Oxygen Form Instructions


Additional Resources

Water Quality and Invasive Plant Patrol Workshops

Simulator Button

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

Presentation Slides from the New Monitor training workshop
WQ Slides

Graphing Secchi Disk Transparency Instructions (pdf)

Quality Assurance Project Plan (pdf 150k). The QAPP (“Quality Assurance Project Plan”) is a guide for proper procedures for lake water quality monitoring by volunteers in the VLMP. This plan has been reviewed and approved by the U.S. EPA, and describes the VLMP structure and how we assure that quality data are gathered. It can serve as an example of how a formal Quality Assurance Plan should be constructed.

Our Mission

The Mission of the Maine Volunteer Lake Monitoring Program is to help protect Maine lakes through widespread citizen participation in the gathering and dissemination of credible scientific information pertaining to lake health. The VLMP trains, certifies and provides technical support to hundreds of volunteers who monitor a wide range of indicators of water quality, assess watershed health and function, and screen lakes for invasive aquatic plants and animals. In addition to being the primary source of lake data in the State of Maine, VLMP volunteers benefit their local lakes by playing key stewardship and leadership roles in their communities.

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The VLMP is a non-profit 501(c)(3) organization committed to the collection of information pertaining to lake water quality. For 40 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.