Is Grain Valley, Missouri tap water safe?
2 water systems report serving Grain Valley. Your water depends on which one serves your address. Check your bill if unsure.
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Grain Valley PWS
Serves 16,000 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
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Jackson County PWSD 17
Serves 2,530 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 (2024).