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Tap water quality report

City of Arcadia

EPA monitoring tested this supplier for 111 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
24
detected
51,361
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Local government
Counties served
Los Angeles

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
17
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2006-06-01 → 2006-06-30
MCL Health-based Resolved 2006-06-01 → 2006-06-30
Other Monitoring Resolved 2016-02-11
Other Monitoring Resolved 2016-02-11
MR Monitoring Resolved 2016-01-01 → 2016-01-31
MR Monitoring Resolved 2016-01-01 → 2016-01-31
MR Monitoring Resolved 2015-04-01 → 2015-04-30
MR Monitoring Resolved 2015-04-01 → 2015-04-30
MR Monitoring Resolved 2008-01-01 → 2008-03-31
MR Monitoring Resolved 2008-01-01 → 2008-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFOS 0.0100 µg/L 3/18 2024
PFHXS 0.0048 µg/L 1/18 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
Nitrate
9040 µg/L 90%
of the EPA limit 10000 µg/L
worst single sample: 18000 µg/L
7724/7792 SYR4 2012–2019
Trichloroethylene
4.3 µg/L 86%
of the EPA limit 5 µg/L
worst single sample: 23 µg/L
2384/3865 SYR4 2012–2019
Tetrachloroethylene
6.3 µg/L 126%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 12 µg/L
1414/3834 SYR4 2012–2019
TTHM
18 µg/L 23%
of the EPA limit 80 µg/L
worst single sample: 22 µg/L
127/158 SYR4 2012–2019
Dibromochloromethane
6.875 µg/L
No EPA limit set
worst single sample: 8.7 µg/L
126/158 SYR4 2012–2019
Bromoform
6.9 µg/L
No EPA limit set
worst single sample: 9.3 µg/L
125/158 SYR4 2012–2019
Bromodichloromethane
3.3 µg/L
No EPA limit set
worst single sample: 4.1 µg/L
110/158 SYR4 2012–2019
Dibromoacetic Acid
2.5 µg/L
No EPA limit set
worst single sample: 2.9 µg/L
94/132 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
2.6 µg/L 4.3%
of the EPA limit 60 µg/L
worst single sample: 3.6 µg/L
94/132 SYR4 2012–2019
Fluoride
1200 µg/L 30%
of the EPA limit 4000 µg/L
worst single sample: 1400 µg/L
51/51 SYR4 2012–2019
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
 41/41 LCR 2025
Combined Uranium
8.493 µg/L 28%
of the EPA limit 30 µg/L
worst single sample: 8.94 µg/L
25/27 SYR4 2012–2019
Chloroform
1.8 µg/L
No EPA limit set
worst single sample: 1.9 µg/L
21/158 SYR4 2012–2019
1,1-Dichloroethylene
0.6925 µg/L 9.9%
of the EPA limit 7 µg/L
worst single sample: 0.7100 µg/L
8/461 SYR4 2012–2019
Chromium
19.75 µg/L 20%
of the EPA limit 100 µg/L
worst single sample: 21 µg/L
6/52 SYR4 2012–2019
Nitrate-Nitrite
11500 µg/L 115%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 12000 µg/L
6/7 SYR4 2017
Arsenic
5.685 µg/L 57%
of the EPA limit 10 µg/L
worst single sample: 5.7 µg/L
4/51 SYR4 2012–2019
Dichloroacetic Acid
1.285 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
2/132 SYR4 2012–2019
Copper
76 µg/L 5.8%
of the EPA limit 1300 µg/L
 1/35 SYR4 2012–2018
Di(2-ethylhexyl) Phthalate
6.6 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
 1/81 SYR4 2012–2018
Gross Beta Particle Activity
2.3 pCi/L
No EPA limit set
 1/1 SYR4 2018
Lead
15 µg/L 100%
of the EPA limit 15 µg/L
 1/20 SYR4 2012–2018
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-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, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CRANMER, PAUL
Phone
626-254-2705
Email
[email protected]

Frequently asked questions about City of Arcadia

Is City of Arcadia tap water safe to drink?

EPA monitoring detected 24 contaminants in City of Arcadia'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 City of Arcadia's water?

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

How many people does City of Arcadia serve?

City of Arcadia reports serving 51,361 people in California, per its EPA record.

Has City of Arcadia had any water quality violations?

The EPA has 17 violations on file for City of Arcadia, 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.