What's in NEWCASTLE, CITY OF's water?
NEWCASTLE, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,595 people get their water from it, across 1,572 connections.
How this compares nationally
NEWCASTLE, CITY OF has 276 violations on record in total, 11 of thems health-based - ranking it 1,671th of 12,903 systems by violation count, the 87th percentile nationally.
How NEWCASTLE, CITY OF compares within WY
WY's 44 covered systems average 5.0 health-based violations each; NEWCASTLE, CITY OF carries 11, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for NEWCASTLE, CITY OF is from 2025-01-07 (health-based: 2014-01-08). Last reported to EPA: 06/29/2026.
What kind of problem, specifically
NEWCASTLE, CITY OF'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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Groundwater Rule
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
This is what NEWCASTLE, CITY OF reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 276 logged violations can see. The guide to what this data misses covers that gap.