7928-R5_NewGloucester_2020-2021_AnnualReport_Web

SABBATHDAY LAKE | 2020 Water Quality Report

TABLE OF CONTENTS BACKGROUND ....................................................................................................................................................................................................................... 1 METHODS ............................................................................................................................................................................................................................... 2 RESULTS .................................................................................................................................................................................................................................. 3 Weather............................................................................................................................................................................................................................................ 3 Trophic State Indicators...................................................................................................................................................................................................... 4 Water Clarity........................................................................................................................................................................................................................... 4 Total Phosphorus................................................................................................................................................................................................................. 4 Chlorophyll-a .......................................................................................................................................................................................................................... 4 Dissolved Oxygen & Temperature................................................................................................................................................................................ 0 Chemical Parameters ............................................................................................................................................................................................................. 1 Color ................................................................................................................................................................................................................................................ 1 Alkalinity ..................................................................................................................................................................................................................................... 1 pH ...................................................................................................................................................................................................................................................... 1 SUMMARY ............................................................................................................................................................................................................................... 0 RECOMMENDATIONS ...................................................................................................................................................................................................... 0 Ways to Protect the Lake..................................................................................................................................................................................................... 1 REFERENCES ......................................................................................................................................................................................................................... 2 APPENDIX A | DEPTH MAPS ....................................................................................................................................................................................... 3

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