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Tap water quality report

Golden State Water Co. - Cordova

EPA monitoring tested this supplier for 103 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

103
contaminants tested
13
detected
47,161
people served
11
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Private
Counties served
Sacramento

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.

11
health-based violations
11
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2006-06-01 → 2006-06-30
MCL Health-based Resolved 2006-06-01 → 2006-06-30
TT Health-based Resolved 2006-03-01 → 2006-03-31
TT Health-based Resolved 2006-03-01 → 2006-03-31
MCL Health-based Resolved 2005-04-01 → 2005-04-30
MCL Health-based Resolved 2005-04-01 → 2005-04-30
MCL Health-based Resolved 1997-08-01 → 1997-08-31
TT Health-based Resolved 1992-07-01 → 1992-07-31

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
Nitrate
4294 µg/L 43%
of the EPA limit 10000 µg/L
worst single sample: 4600 µg/L
216/314 SYR4 2012–2019
Trichloroethylene
1.5 µg/L 30%
of the EPA limit 5 µg/L
worst single sample: 1.6 µg/L
48/277 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 38/38 LCR 2024
Tetrachloroethylene
0.9090 µg/L 18%
of the EPA limit 5 µg/L
worst single sample: 1 µg/L
14/276 SYR4 2012–2019
Nitrate-Nitrite
757000 µg/L 7570%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 790000 µg/L
12/25 SYR4 2012–2019
Arsenic
4.15 µg/L 42%
of the EPA limit 10 µg/L
worst single sample: 4.5 µg/L
6/27 SYR4 2012–2018
Barium
157 µg/L 7.9%
of the EPA limit 2000 µg/L
worst single sample: 160 µg/L
4/26 SYR4 2012–2018
Fluoride
195.5 µg/L 4.9%
of the EPA limit 4000 µg/L
worst single sample: 200 µg/L
4/27 SYR4 2012–2019
Chloroform
6.7 µg/L
No EPA limit set
 1/1 SYR4 2013
Combined Uranium
1.7284 µg/L 5.8%
of the EPA limit 30 µg/L
 1/1 SYR4 2012
Di(2-ethylhexyl) Phthalate
8.9 µg/L 148%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
 1/28 SYR4 2012–2018
Gross Beta Particle Activity
3.6 pCi/L
No EPA limit set
 1/1 SYR4 2012
TTHM
6.7 µg/L 8.4%
of the EPA limit 80 µg/L
 1/1 SYR4 2013
90 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MILLER, LISA
Phone
916-853-3632
Email
lmiller@gswater.com

Frequently asked questions about Golden State Water Co. - Cordova

Is Golden State Water Co. - Cordova tap water safe to drink?

EPA monitoring detected 13 contaminants in Golden State Water Co. - Cordova'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 Golden State Water Co. - Cordova's water?

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

How many people does Golden State Water Co. - Cordova serve?

Golden State Water Co. - Cordova reports serving 47,161 people in California, per its EPA record.

Has Golden State Water Co. - Cordova had any water quality violations?

The EPA has 11 violations on file for Golden State Water Co. - Cordova, of which 11 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.