C52/100
King City Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,100 residents · Missouri
What's In King City's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
12
Violations (last 5yr)
0
Unresolved
9
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: July 3, 2025 – August 28, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: April 1, 2025 – June 30, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: January 1, 2025 – March 31, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: October 1, 2024 – December 31, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: September 29, 2024 – July 1, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: July 1, 2024 – September 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: April 1, 2024 – June 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: January 1, 2024 – March 31, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: January 25, 2023 – April 3, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: October 1, 2022 – December 31, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: July 1, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment Technique Violation
When: April 1, 2022 – June 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
KING CITY PWS
Population Served
1,100
Water Source
Surface Water
System ID
MO1010425
Frequently Asked Questions About King City Water
Is King City tap water safe to drink?
King City, Missouri tap water receives a grade of C (52/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 12 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in King City's water?
1 contaminants were tested in King City's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does King City have any water quality violations?
Yes, King City has 12 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, TT. 9 of these are health-based violations, which are the most serious category.
Do I need a water filter in King City?
King City water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does King City's tap water come from?
King City's drinking water is sourced from surface water and supplied by KING CITY PWS. The system serves approximately 1,100 people. Surface water sources include rivers, lakes, and reservoirs.
How often is King City's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. King City's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does King City's water compare to other cities in Missouri?
King City's water quality score of 52/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Missouri state page to see how all cities in the state compare.
What should I do if I'm concerned about King City's water quality?
If you have concerns about King City's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (KING CITY PWS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.