Is Fairfield, Iowa tap water safe?
3 water systems report serving Fairfield. Your water depends on which one serves your address. Check your bill if unsure.
A
Fairfield Water Supply
Serves 9,821 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B
Jefferson County Rural Water District
Serves 468 people · Surface water · Full report →
No health-based violations in the last 5 years; 5 monitoring/reporting violations; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Fairfield Estates Mobile Home Park
Serves 140 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).