E.coli | |||||||||||||
primary contact maximum 77(*) | |||||||||||||
mid November | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | g-Mean |
Harris | 7 | 20 | 25 | 10 | 50 | 50 | 130 | 57 | 82 | 23 | 17 | 30 | |
Duteau | 12 | 34 | 21 | 19 | 10 | 7 | 12 | 46 | 54 | 19 | 24 | 20 | |
Vance | 8 | 4 | -- | -- | 2 | 2 | 5 | 1 | 15 | 4 | |||
Mid Bessette | 13 | 11 | 51 | 18 | 42 | 60 | 67 | 131 | 60 | 93 | 34 | 41 | |
Lower Bessette | 11 | 10 | 43 | 30 | 76 | 91 | 77 | 35 | 8 | 66 | 11 | 30 | |
geometric Mean | 10.5 | 16.5 | 24.7 | 13.3 | 35.5 | 37.2 | 27.7 | 29.9 | 25.4 | 19.3 | 19 | #VALUE! | |
mid September | |||||||||||||
Harris | 190 | 26 | 73 | 71 | |||||||||
Duteau | 78 | 170 | 180 | 134 | |||||||||
Vance | 11 | 11 | |||||||||||
Mid Bessette | 210 | 120 | 120 | 145 | |||||||||
Lower Bessette | 89 | 53 | 64 | 67 | |||||||||
geometric Mean | 129.0 | 72.8 | 64.4 | ||||||||||
mid August | |||||||||||||
Harris | 2100 | 270 | 230 | 570 | 580 | 900 | 1000 | 489 | 297 | 271 | 293 | 496 | |
Duteau | 380 | 190 | 110 | 240 | 1000 | 77 | 210 | 101 | 11200 | 305 | 82 | 281 | |
Vance | 29 | 36 | 240 | 27 | 96 | 15 | 59 | 54 | 56 | 49 | |||
Mid Bessette | 290 | 270 | 140 | 370 | 710 | 270 | 560 | 224 | 639 | 511 | 107 | 318 | |
Lower Bessette | 250 | 290 | 150 | 140 | 240 | 230 | 340 | 109 | 115 | 307 | 74 | 184 | |
geometric Mean | 490.4 | 251.8 | 109.0 | 191.1 | 473.2 | 163.3 | 328.7 | 112.6 | 428.4 | 233.9 | 101 | #VALUE! | |
mid July | |||||||||||||
Harris | 80 | 190 | 1900 | 307 | |||||||||
Duteau | 330 | 310 | 600 | 394 | |||||||||
Vance | 260 | 260 | |||||||||||
Mid Bessette | 2 | 150 | 2000 | 84 | |||||||||
Lower Bessette | 51 | 100 | 500 | 137 | |||||||||
geometric Mean | 40.5 | 172.4 | 784.1 | ||||||||||
mid May (freshet) | |||||||||||||
Harris | 140 | 20 | 22 | 23 | 48 | 150 | 33 | 23 | 102 | 119 | 24 | 687 | 58 |
Duteau | 180 | 29 | 55 | 82 | 44 | 80 | 200 | 52 | 824 | 33 | 215 | 210 | 100 |
Vance | 1 | 22 | 4 | 2 | 1 | 1 | <1 | 423 | 2 | 5 | 4 | ||
Mid Bessette | 88 | 31 | 41 | 71 | 150 | 33 | 130 | 40 | 127 | 43 | 72 | 248 | 72 |
Lower Bessette | 56 | 36 | 43 | 89 | 39 | 37 | 110 | 53 | 228 | 40 | 105 | 291 | 72 |
geometric Mean | 105.6 | 28.4 | 18.4 | 48.3 | 33.9 | 31.1 | 39.4 | 19.0 | 222.1 | 77.8 | 38 | 139 | |
mid April | |||||||||||||
Harris | 12 | 24 | 52 | 25 | |||||||||
Duteau | 30 | 11 | 43 | 24 | |||||||||
Vance | -- | -- | |||||||||||
Mid Bessette | 26 | 18 | 45 | 28 | |||||||||
Lower Bessette | 17 | 35 | 22 | 24 | |||||||||
geometric Mean | 20.0 | 20.2 | 38.6 |
(*) Primary Contact Maximum :-
Both references speak of the geometric mean of several samples, as opposed to single-sample maximum. The standards quoted here are for the geometric mean, a lower maximum than allowed by a single sample result.