[whateveryou381]

From 2015, scare mongering with little content other than vague statements like

"Before treatment, Westport's water tested up to four times state and federal limits. After treatment, it's safe for the children, teachers and staff to drink."

This does not point to a specific limit such as Maxiumum Contanminant Level (MCL) or Maximum Contaminant Limit Goal (MCLG). MCLG is a non-legally binding limit, which is as it states is a goal. MCLG for urainum contaminants is 0 ug/L. Any measurement of any drinking water will always have more uranium than this limit. The MCL is 30ug/L for uranium.

Additionally, the EPA has changed the way in which they have approached limits, previously they quoted something like the World Health Organization limits [3], which are average daily consumption limits. Average implies that some measurements could be high or low. WHO estimates natural concentration of uranium in drinking water is 0.08 ug/L (0.001 Bq/L), which is obviously above the EPAs MCLG.

WHO is a much better resource for information on these limits, and the EPA appears to just take their limits and do a divide by ten.

[1] https://en.wikipedia.org/wiki/Maximum_Contaminant_Level [2] https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=30006644.txt [3] https://apps.who.int/iris/bitstream/handle/10665/272995/9789...