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Tap water quality report

Shelton City of

EPA monitoring tested this supplier for 88 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

88
contaminants tested
13
detected
15,089
people served
2
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Mason

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.

2
health-based violations
108
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2003-10-01 → 2003-10-31
MCL Health-based Archived 2003-09-01 → 2003-09-30
Other Monitoring Resolved 2017-07-01
Other Monitoring Resolved 2011-07-01
MR Monitoring Archived 2008-04-01 → 2008-06-30
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chloroform
14.496 µg/L
No EPA limit set
worst single sample: 24.8 µg/L
35/40 SYR4 2013–2019
TTHM
19.643 µg/L 25%
of the EPA limit 80 µg/L
worst single sample: 29.56 µg/L
35/35 SYR4 2013–2019
Bromodichloromethane
3.6675 µg/L
No EPA limit set
worst single sample: 4.46 µg/L
32/36 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
7.8225 µg/L 13%
of the EPA limit 60 µg/L
worst single sample: 9.9 µg/L
22/33 SYR4 2013–2019
Dibromochloromethane
2.74 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
21/36 SYR4 2013–2019
Dichloroacetic Acid
3.584 µg/L
No EPA limit set
worst single sample: 3.72 µg/L
18/35 SYR4 2013–2019
Trichloroacetic Acid
3.4069 µg/L
No EPA limit set
worst single sample: 4.16 µg/L
18/35 SYR4 2013–2019
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2024
Nitrate
310 µg/L 3.1%
of the EPA limit 10000 µg/L
 14/56 SYR4 2012–2019
Bromoform
1.6935 µg/L
No EPA limit set
worst single sample: 1.71 µg/L
4/36 SYR4 2013–2019
Selenium
3.895 µg/L 7.8%
of the EPA limit 50 µg/L
worst single sample: 3.9 µg/L
2/4 SYR4 2013–2018
Monochloroacetic Acid
8.5 µg/L
No EPA limit set
 1/35 SYR4 2013–2019
Nitrate-Nitrite
310 µg/L 3.1%
of the EPA limit 10000 µg/L
 1/4 SYR4 2013–2018
75 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, TotalArsenicAsbestosBariumBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDibromoacetic AcidDinosebEthylene DibromideEthylbenzeneFluorideHfpo-DaLeadMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Matt Deemer

Frequently asked questions about Shelton City of

Is Shelton City of tap water safe to drink?

EPA monitoring detected 13 contaminants in Shelton City of'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 Shelton City of's water?

EPA monitoring detected Chloroform, TTHM, Bromodichloromethane, Total Haloacetic Acids (HAA5), Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Shelton City of serve?

Shelton City of reports serving 15,089 people in Washington, per its EPA record.

Has Shelton City of had any water quality violations?

The EPA has 108 violations on file for Shelton City of, of which 2 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.