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Tap water quality report

Rubio Canon Land & Water Association

EPA monitoring tested this supplier for 110 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
24
detected
9,215
people served
0
health-based violations
Water source
Surface water
Ownership
Private
Counties served
Los Angeles

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 0.0110 µg/L 4/16 2023
PFOS 0.0190 µg/L 4/16 2023
Pfba 0.0057 µg/L 2/16 2023
PFBS 0.0035 µg/L 2/16 2023
PFOA 0.0085 µg/L 2/16 2023
Pfhxa 0.0031 µg/L 1/16 2023
Pfpea 0.0035 µg/L 1/16 2023

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
4900 µg/L 49%
of the EPA limit 10000 µg/L
worst single sample: 7684 µg/L
974/988 SYR4 2012–2019
Fluoride
2500 µg/L 63%
of the EPA limit 4000 µg/L
worst single sample: 3500 µg/L
607/607 SYR4 2012–2019
Combined Uranium
31.8115 µg/L 106%
of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 37.25 µg/L
154/154 SYR4 2012–2019
Dibromochloromethane
6.6 µg/L
No EPA limit set
worst single sample: 7.5 µg/L
60/60 SYR4 2012–2019
TTHM
16.705 µg/L 21%
of the EPA limit 80 µg/L
worst single sample: 19.7 µg/L
60/60 SYR4 2012–2019
Bromoform
3.71 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
59/60 SYR4 2012–2019
Bromodichloromethane
4.42 µg/L
No EPA limit set
worst single sample: 5.2 µg/L
57/60 SYR4 2012–2019
Tetrachloroethylene
3.7 µg/L 74%
of the EPA limit 5 µg/L
worst single sample: 4.6 µg/L
41/85 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
40/40 LCR 2025
Dibromoacetic Acid
1.915 µg/L
No EPA limit set
worst single sample: 2 µg/L
38/60 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
3.63 µg/L 6.1%
of the EPA limit 60 µg/L
worst single sample: 5.8 µg/L
38/60 SYR4 2012–2019
Chloroform
2.775 µg/L
No EPA limit set
worst single sample: 3.5 µg/L
36/60 SYR4 2012–2019
Nitrate-Nitrite
878000 µg/L 8780%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 900000 µg/L
33/33 SYR4 2012–2019
Arsenic
2.68 µg/L 27%
of the EPA limit 10 µg/L
worst single sample: 2.8 µg/L
5/30 SYR4 2012–2019
Dichloroacetic Acid
1.99 µg/L
No EPA limit set
worst single sample: 2 µg/L
3/60 SYR4 2012–2019
Trichloroacetic Acid
1.795 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
2/60 SYR4 2012–2019
Copper
73 µg/L 5.6%
of the EPA limit 1300 µg/L
1/30 SYR4 2012–2019
86 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, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DE LA PAZ, ARMANDO
Phone
626-797-0509
Email
[email protected]

Frequently asked questions about Rubio Canon Land & Water Association

Is Rubio Canon Land & Water Association tap water safe to drink?

EPA monitoring detected 24 contaminants in Rubio Canon Land & Water Association'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 Rubio Canon Land & Water Association's water?

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

How many people does Rubio Canon Land & Water Association serve?

Rubio Canon Land & Water Association reports serving 9,215 people in California, per its EPA record.

Has Rubio Canon Land & Water Association had any water quality violations?

The EPA has no formal drinking-water violations on file for Rubio Canon Land & Water Association.

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.