7548-R1_NewGloucester_2019-2020_AnnualReport_Web

SABBATHDAY LAKE | 2019 Water Quality Report

TABLE OF CONTENTS BACKGROUND ................................................................................................................................................................1 METHODS .........................................................................................................................................................................2 RESULTS .............................................................................................................................................................................3 Weather .......................................................................................................................................................................... 3 Trophic State Indicators ...........................................................................................................................................3 Water Clarity .............................................................................................................................................................3 Total Phosphorus ....................................................................................................................................................4 Chlorophyll-a ............................................................................................................................................................ 4 Dissolved Oxygen & Temperature .......................................................................................................................6 Chemical Parameters ................................................................................................................................................. 7 Color ............................................................................................................................................................................7 Alkalinity ..................................................................................................................................................................... 7 pH .................................................................................................................................................................................7 SUMMARY.........................................................................................................................................................................9 RECOMMENDATIONS ..................................................................................................................................................9 Ways To Protect The Lake .................................................................................................................................... 10 REFERENCES .................................................................................................................................................................. 10 APPENDIX A | DEPTH MAPS .................................................................................................................................... 11

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