This section summarizes the distribution of all enterococcus samples. It only includes routine samples and thus excludes all resamples.

This figure shows the histogram of all routine samples on a log-scale. The vertical lines show the 70 and 104 limits. The distribution is uni-modal, the large change at 10 MPN/100mL is due to the detection limits.

This figure shows the same data, but on a linear scale and only including samples with ENT < 200 to focus on the lower range. Again, the majority of routine samples are at or below the detection limit of 10 MPN/100mL.

**Question**: What fraction of all routine samples are between 70 and 104?

**Answer**: 3.71%

This table shows the fraction of routine samples <70, between 70-104, and >104.

Range | Percent |
---|---|

<=70 | 87.5% |

70-104 | 3.7% |

>104 | 8.8% |

**Question**: If a routine sample is greater than 70 MPN/100mL, what is the probability it is also > 104?

**Answer**: 70.4%

This table shows the fraction of samples between 70-104 and >104 based only on samples with concentrations <70. This shows that out of all samples greater than 70 MPN/100mL, about 70% are also above 104, and 30% are between 70 and 104.

Range | Percent |
---|---|

70-104 | 29.6% |

>104 | 70.4% |

In this section, the data are grouped by beach and thus may include more than one sampling site.

This figure shows the total number of routine samples in each category (<70, 70-104, >104).