Lake Erie - Central Basin Water temp. Total P Alkalinity Tot. hardness D.O. Algae 17.5 .030 96 135 9.0 794 11.4 .140 96 133 10.1 291 5.5 .030 94 131 12.0 240 2.1 .031 92 130 13.2 870 .8 .048 93 131 13.9 770 1.6 .058 91 129 13.7 1727 6.2 .074 90 131 12.2 1852 11.1 .043 91 130 10.2 326 16.8 .047 92 126 8.3 576 20.9 .041 91 124 7.3 442 21.2 .032 92 126 7.3 544 21.2 .038 98 132 6.6 264 14.2 .051 94 135 9.6 793 8.4 .062 93 135 10.4 1559 3.3 .072 91 132 13.1 1859 1.3 .100 92 133 13.8 594 1.1 .090 92 135 13.5 863 2.8 .070 91 136 12.5 388 7.3 .100 90 132 11.1 476 15.5 .173 92 133 10.3 442 17.9 .056 93 140 8.0 235 20.4 .024 114 129 8.4 470 22.9 .021 95 128 7.6 455 21.3 .016 91 135 8.1 552 16.2 .023 92 127 9.5 463 9.7 .100 90 123 10.6 544 4.5 .024 90 125 12.2 570 1.8 .080 89 126 13.6 480 1.4 .090 91 128 13.5 605 3.2 .050 88 126 13.1 730 4.7 .026 88 132 12.5 738 9.9 .021 91 131 11.2 658 14.2 .024 92 128 10.4 93 21.4 .049 92 128 6.0 279 21.8 .019 94 131 8.0 476 20.3 .025 95 132 8.0 366