Is FAIRFAX WATER SUPPLY's water safe to drink?
FAIRFAX WATER SUPPLY has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 2,828 people through 1,400 service connections.
How this compares nationally
FAIRFAX WATER SUPPLY has 8 violations on record in total, 1 of them health-based - ranking it 8,410th of 12,903 systems by violation count, the 35th percentile nationally.
Against the IA average
IA's 203 covered systems average 3.5 health-based violations each; FAIRFAX WATER SUPPLY carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
FAIRFAX WATER SUPPLY's most recent violation on record is dated 2022-01-07, with the most recent health-based one dated 2004-01-04. Last reported to EPA: 06/17/2026.
The concern categories on record
FAIRFAX WATER SUPPLY'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:
- Nitrate / nitrite - flagged from: Nitrite
The most severe category on record is nitrate / nitrite, which points toward a reverse osmosis-class filter if you want to address it directly.
What FAIRFAX WATER SUPPLY's record does not cover
This is what FAIRFAX WATER SUPPLY 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 8 logged violations can see. The guide to what this data misses covers that gap.