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Tap water quality report

Elk Grove Water District

EPA monitoring tested this supplier for 105 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

105
contaminants tested
10
detected
43,813
people served
4
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
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.

4
health-based violations
6
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2008-10-01 → 2008-12-31
MCL Health-based Resolved 2008-07-01 → 2008-09-30
MCL Health-based Resolved 2008-04-01 → 2008-06-30
MCL Health-based Resolved 1993-12-01 → 1993-12-31
MR Monitoring Resolved 2007-10-01 → 2007-12-31
Other Monitoring Archived 1989-12-01 → 1989-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFHXS 0.0038 µg/L 1/10 2024
Pfpea 0.0046 µg/L 1/10 2024

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
Arsenic
15 µg/L 150%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 17 µg/L
407/620 SYR4 2012–2019
Nitrate
4520 µg/L 45%
of the EPA limit 10000 µg/L
 60/138 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 30/30 LCR 2025
Barium
145 µg/L 7.2%
of the EPA limit 2000 µg/L
worst single sample: 150 µg/L
11/20 SYR4 2012–2017
Fluoride
135 µg/L 3.4%
of the EPA limit 4000 µg/L
worst single sample: 150 µg/L
11/20 SYR4 2012–2017
Nitrate-Nitrite
3800 µg/L 38%
of the EPA limit 10000 µg/L
 3/10 SYR4 2017
Combined Uranium
3.27055 µg/L 11%
of the EPA limit 30 µg/L
worst single sample: 3.278 µg/L
2/13 SYR4 2012–2017
Toluene
0.5700 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/25 SYR4 2012–2017
95 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, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KAMILOS, BRUCE
Phone
916-685-3556
Email
bkamilos@egwd.org

Frequently asked questions about Elk Grove Water District

Is Elk Grove Water District tap water safe to drink?

EPA monitoring detected 10 contaminants in Elk Grove Water District'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 Elk Grove Water District's water?

EPA monitoring detected Arsenic, Nitrate, Lead, Barium, Fluoride, and others. The full list with the level and data source for each is above.

How many people does Elk Grove Water District serve?

Elk Grove Water District reports serving 43,813 people in California, per its EPA record.

Has Elk Grove Water District had any water quality violations?

The EPA has 6 violations on file for Elk Grove Water District, of which 4 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.