DrinkingWaterCheck

WILLISTON WTP: EPA violation history, explained

WILLISTON WTP has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 2,400 people through 915 service connections.

WILLISTON WTP's record against the rest of the country

WILLISTON WTP has 12 violations on record in total, 2 of thems health-based - ranking it 6,459th of 12,903 systems by violation count, the 50th percentile nationally.

Against the FL average

Among the 482 FL systems in this dataset, the average is 4.5 health-based violations - WILLISTON WTP's 2 is at or below that. See the lead and copper guide for why lead counts differently.

Most recent violation on record

WILLISTON WTP's most recent violation on record is dated 2023-01-07, with the most recent health-based one dated 1992-01-05. Last reported to EPA: 05/18/2026.

The concern categories on record

WILLISTON WTP's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:

The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.

What WILLISTON WTP's record does not cover

Everything on this page is WILLISTON WTP's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 2 health-based violations on file for WILLISTON WTP - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.