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San Gabriel Valley Water Co-Montebello 2

EPA monitoring tested this supplier for 92 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

92
contaminants tested
16
detected
7,330
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
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
9
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2001-10-01 → 2001-10-31
MCL Health-based Resolved 2001-10-01 → 2001-10-31
RPT Monitoring Resolved 2021-06-01
RPT Monitoring Resolved 2021-05-01
MR Monitoring Resolved 2021-04-01 → 2021-06-30
MR Monitoring Resolved 2021-04-01 → 2021-06-30
MR Monitoring Resolved 2021-04-01 → 2021-06-30
MR Monitoring Resolved 2021-04-01 → 2021-06-30
RPT Monitoring Resolved 2021-04-01

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
Fluoride
933 µg/L 23%
of the EPA limit 4000 µg/L
worst single sample: 950 µg/L
75/75 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 45/45 LCR 2023
TTHM
57.12 µg/L 71%
of the EPA limit 80 µg/L
worst single sample: 58.8 µg/L
39/39 SYR4 2012–2019
Dibromochloromethane
17.9915 µg/L
No EPA limit set
worst single sample: 18.51 µg/L
38/39 SYR4 2012–2019
Bromoform
7.2025 µg/L
No EPA limit set
worst single sample: 11 µg/L
36/39 SYR4 2012–2019
Bromodichloromethane
16.663 µg/L
No EPA limit set
worst single sample: 18.84 µg/L
35/39 SYR4 2012–2019
Chloroform
22.3 µg/L
No EPA limit set
worst single sample: 25 µg/L
35/39 SYR4 2012–2019
Dibromoacetic Acid
7.22 µg/L
No EPA limit set
worst single sample: 7.6 µg/L
35/39 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
26.3 µg/L 44%
of the EPA limit 60 µg/L
worst single sample: 28 µg/L
35/39 SYR4 2012–2019
Dichloroacetic Acid
13 µg/L
No EPA limit set
 33/39 SYR4 2012–2019
Trichloroacetic Acid
8.115 µg/L
No EPA limit set
worst single sample: 8.7 µg/L
32/39 SYR4 2012–2019
Nitrate
3000 µg/L 30%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
Lithium
54 µg/L
No EPA limit set
 3/6 UCMR-5 2023
Monobromoacetic Acid
6.8 µg/L
No EPA limit set
worst single sample: 7.1 µg/L
2/39 SYR4 2012–2019
Monochloroacetic Acid
5.2 µg/L
No EPA limit set
 1/39 SYR4 2012–2019
Nitrate-Nitrite
2000 µg/L 20%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
76 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylbenzeneHfpo-DaLassoLeadMercuryNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
NGUYEN, HAI-VAN
Phone
626-448-6183
Email
[email protected]

Frequently asked questions about San Gabriel Valley Water Co-Montebello 2

Is San Gabriel Valley Water Co-Montebello 2 tap water safe to drink?

EPA monitoring detected 16 contaminants in San Gabriel Valley Water Co-Montebello 2'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 San Gabriel Valley Water Co-Montebello 2's water?

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

How many people does San Gabriel Valley Water Co-Montebello 2 serve?

San Gabriel Valley Water Co-Montebello 2 reports serving 7,330 people in California, per its EPA record.

Has San Gabriel Valley Water Co-Montebello 2 had any water quality violations?

The EPA has 9 violations on file for San Gabriel Valley Water Co-Montebello 2, 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.