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Tap water quality report

Cwsc King City

EPA monitoring tested this supplier for 102 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
22
detected
16,334
people served
1
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Monterey

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.

1
health-based violations
1
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1992-09-01 → 1992-09-30

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
Nitrate
6305.05 µg/L 63%
of the EPA limit 10000 µg/L
worst single sample: 6946 µg/L
158/158 SYR4 2012–2019
Bromoform
4.382 µg/L
No EPA limit set
worst single sample: 7.21 µg/L
90/90 SYR4 2013–2019
Dibromochloromethane
7.4775 µg/L
No EPA limit set
worst single sample: 10.36 µg/L
90/90 SYR4 2013–2019
TTHM
18.77 µg/L 23%
of the EPA limit 80 µg/L
worst single sample: 25.5 µg/L
90/90 SYR4 2013–2019
Bromodichloromethane
4.656 µg/L
No EPA limit set
worst single sample: 6.71 µg/L
89/90 SYR4 2013–2019
Dibromoacetic Acid
3.3 µg/L
No EPA limit set
worst single sample: 5.4 µg/L
82/91 SYR4 2013–2019
Chloroform
1.808 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
53/90 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 38/38 LCR 2023
Total Haloacetic Acids (HAA5)
5.11 µg/L 8.5%
of the EPA limit 60 µg/L
worst single sample: 6.6 µg/L
24/91 SYR4 2013–2019
Fluoride
271.5 µg/L 6.8%
of the EPA limit 4000 µg/L
worst single sample: 280 µg/L
18/18 SYR4 2012–2019
Combined Uranium
2.0258 µg/L 6.8%
of the EPA limit 30 µg/L
worst single sample: 2.086 µg/L
15/16 SYR4 2012–2018
Nitrate-Nitrite
768000 µg/L 7680%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 990000 µg/L
13/13 SYR4 2012–2019
Lithium
16 µg/L
No EPA limit set
 12/12 UCMR-5 2025
Arsenic
2.8 µg/L 28%
of the EPA limit 10 µg/L
 8/23 SYR4 2012–2019
Copper
66.494 µg/L 5.1%
of the EPA limit 1300 µg/L
worst single sample: 81 µg/L
5/23 SYR4 2012–2019
Antimony, Total
0.1070 µg/L 1.8%
of the EPA limit 6 µg/L
worst single sample: 0.1080 µg/L
4/23 SYR4 2012–2019
Barium
30.8775 µg/L 1.5%
of the EPA limit 2000 µg/L
worst single sample: 31.047 µg/L
4/23 SYR4 2012–2019
Cadmium
0.0451 µg/L 0.9%
of the EPA limit 5 µg/L
worst single sample: 0.0460 µg/L
4/23 SYR4 2012–2019
Chromium
3.787 µg/L 3.8%
of the EPA limit 100 µg/L
worst single sample: 4.12 µg/L
4/23 SYR4 2012–2019
Dichloroacetic Acid
1.37 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
4/91 SYR4 2013–2019
Lead
0.6606 µg/L 4.4%
of the EPA limit 15 µg/L
worst single sample: 0.7230 µg/L
4/23 SYR4 2012–2019
Selenium
1.4255 µg/L 2.9%
of the EPA limit 50 µg/L
worst single sample: 1.431 µg/L
3/22 SYR4 2012–2019
80 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-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEthylbenzeneHexachlorobenzeneHfpo-DaHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JAMES, SOPHIE
Phone
408-367-8593
Email
sjames@calwater.com

Frequently asked questions about Cwsc King City

Is Cwsc King City tap water safe to drink?

EPA monitoring detected 22 contaminants in Cwsc King City'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 Cwsc King City's water?

EPA monitoring detected Nitrate, Bromoform, Dibromochloromethane, TTHM, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Cwsc King City serve?

Cwsc King City reports serving 16,334 people in California, per its EPA record.

Has Cwsc King City had any water quality violations?

The EPA has 1 violation on file for Cwsc King City, of which 1 is 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.