Compared to Distribution

an indicator guage with the arrow in the green the value is in the best half of communities.

an indicator guage with the arrow in the yellow the value is in the 2nd worst quarter of communities.

an indicator guage with the arrow in the red the value is in the worst quarter of communities.

Compared to Target

green circle with white tick inside it meets target; red circle with white cross inside it does not meet target.

Compared to a Single Value

green diamond with downward arrow inside it lower than the comparison value; red diamond with downward arrow inside it higher than the comparison value; blue diamond with downward arrow inside it not statistically different from comparison value.

Trend

green square outline with upward trending arrow inside it green square outline with downward trending arrow inside it non-significant change over time; green square with upward trending arrow inside it green square with downward trending arrow inside it significant change over time; blue square with equals sign no change over time.

Compared to Prior Value

green triangle with upward trending arrow inside it higher than the previous measurement period; green triangle with downward trending arrow inside it lower than the previous measurement period; blue equals sign no statistically different change from previous measurement period.

green chart bars Significantly better than the overall value

red chart bars Significantly worse than the overall value

light blue chart bars No significant difference with the overall value

gray chart bars No data on significance available

Results of Nitrate Testing of >10ppm in Public Wells

Measurement Period: 2021

This indicator reports the percent of total public well water samples that report nitrate concentration results >10ppm

Why is this important?

The maximum contaminant level (MCL) for nitrate is 10ppm to monitor levels in drinking water to prevent an increased risk of adverse health effects resulting from exposure. The presence of nitrate levels above 10ppm places infants at risk for a serious illness called methemoglobinemia (also referred to as “Blue Baby Syndrome”) due to the appearance of the patient caused by the reduction of the blood’s ability to carry oxygen. Research has also suggested that consuming nitrate contaminated water may increase the risk of thyroid disease, diabetes, and certain types of cancer.

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