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Tap water quality report

Centralia

EPA monitoring tested this supplier for 98 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

98
contaminants tested
11
detected
4,027
people served
3
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Local government
Counties served
Boone

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

3
health-based violations
9
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2001-08-01 → 2001-08-31
MCL Health-based Resolved 2001-08-01 → 2001-08-31
MCL Health-based Resolved 2001-08-01 → 2001-08-31
Other Monitoring Resolved 2020-07-01
Other Monitoring Resolved 2018-07-01
Other Monitoring Resolved 2018-07-01
Other Monitoring Resolved 2015-07-01
Other Monitoring Resolved 2015-07-01
Other Monitoring Resolved 2015-07-01

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
116 µg/L 8.9%
of the EPA limit 1300 µg/L
 63/63 SYR4 2012–2019
Lead
0.0013 mg/L 8.8%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2025
Nitrate-Nitrite
270 µg/L 2.7%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Bromoform
2.86 µg/L
No EPA limit set
 9/10 SYR4 2012–2019
Lead
7.9 µg/L 53%
of the EPA limit 15 µg/L
 8/63 SYR4 2012–2019
Dibromochloromethane
1.31 µg/L
No EPA limit set
 7/10 SYR4 2012–2019
TTHM
4.17 µg/L 5.2%
of the EPA limit 80 µg/L
 4/7 SYR4 2013–2019
Barium
3.31 µg/L 0.2%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Chromium
1.9 µg/L 1.9%
of the EPA limit 100 µg/L
 3/3 SYR4 2012–2018
Fluoride
1200 µg/L 30%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
Lithium
91 µg/L
No EPA limit set
 2/2 UCMR-5 2024
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalBromodichloromethaneChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
STRAIN, TARA
Phone
573-682-2139
Email
tara@centraliamo.org

Frequently asked questions about Centralia

Is Centralia tap water safe to drink?

EPA monitoring detected 11 contaminants in Centralia's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Centralia's water?

EPA monitoring detected Copper, Lead, Nitrate-Nitrite, Bromoform, Lead, and others. The full list with the level and data source for each is above.

How many people does Centralia serve?

Centralia reports serving 4,027 people in Missouri, per its EPA record.

Has Centralia had any water quality violations?

The EPA has 9 violations on file for Centralia, of which 3 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.