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Tap water quality report

Cal Am - Arden

EPA monitoring tested this supplier for 100 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

100
contaminants tested
13
detected
4,191
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Private
Counties served
Sacramento

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFHXS 0.0079 µg/L 2/13 2025
PFOA 0.0060 µg/L 2/13 2025
PFOS 0.0060 µg/L 2/13 2025
Pfhxa 0.0037 µg/L 1/13 2025
Pfpea 0.0040 µg/L 1/13 2025

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
4718.65 µg/L 47%
of the EPA limit 10000 µg/L
worst single sample: 4770 µg/L
78/88 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 33/33 LCR 2025
Arsenic
3.235 µg/L 32%
of the EPA limit 10 µg/L
worst single sample: 3.4 µg/L
12/13 SYR4 2012–2018
Fluoride
272 µg/L 6.8%
of the EPA limit 4000 µg/L
worst single sample: 280 µg/L
5/35 SYR4 2012–2019
Nitrate-Nitrite
600000 µg/L 6000%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
 5/8 SYR4 2012–2018
Barium
100 µg/L 5%
of the EPA limit 2000 µg/L
 3/13 SYR4 2012–2018
Trichloroethylene
0.6950 µg/L 14%
of the EPA limit 5 µg/L
worst single sample: 0.7000 µg/L
2/16 SYR4 2012–2018
Diquat
0.5000 µg/L 2.5%
of the EPA limit 20 µg/L
 1/28 SYR4 2012–2018
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-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FOSTER, AUDIE
Phone
916-568-4259
Email
audie.foster@amwater.com

Frequently asked questions about Cal Am - Arden

Is Cal Am - Arden tap water safe to drink?

EPA monitoring detected 13 contaminants in Cal Am - Arden'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 Cal Am - Arden's water?

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

How many people does Cal Am - Arden serve?

Cal Am - Arden reports serving 4,191 people in California, per its EPA record.

Has Cal Am - Arden had any water quality violations?

The EPA has no formal drinking-water violations on file for Cal Am - Arden.

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.