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Tap water quality report

Bellflower - Somerset Mwc

EPA monitoring tested this supplier for 87 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

87
contaminants tested
14
detected
46,300
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Private
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.

0
health-based violations
2
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2020-10-01
MR Monitoring Resolved 2020-10-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFOS 0.0170 µg/L 12/12 2024
PFHXS 0.0051 µg/L 6/12 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
2915 µg/L 29%
of the EPA limit 10000 µg/L
worst single sample: 3100 µg/L
118/150 SYR4 2012–2019
TTHM
8.8 µg/L 11%
of the EPA limit 80 µg/L
worst single sample: 27.6 µg/L
61/115 SYR4 2012–2019
Dibromochloromethane
3.37 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
47/115 SYR4 2012–2019
Bromoform
4.94 µg/L
No EPA limit set
worst single sample: 21.4 µg/L
44/115 SYR4 2012–2019
Fluoride
398.5 µg/L 10%
of the EPA limit 4000 µg/L
worst single sample: 410 µg/L
24/25 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2024
Barium
180.5 µg/L 9%
of the EPA limit 2000 µg/L
worst single sample: 190 µg/L
20/20 SYR4 2013–2019
Arsenic
4.675 µg/L 47%
of the EPA limit 10 µg/L
worst single sample: 5.1 µg/L
18/20 SYR4 2013–2019
Combined Uranium
4.9915 µg/L 17%
of the EPA limit 30 µg/L
worst single sample: 5.513 µg/L
11/11 SYR4 2012–2019
Dibromoacetic Acid
1.965 µg/L
No EPA limit set
worst single sample: 2 µg/L
8/112 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
1.965 µg/L 3.3%
of the EPA limit 60 µg/L
worst single sample: 2 µg/L
8/112 SYR4 2013–2019
Bromodichloromethane
1.57 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
7/115 SYR4 2012–2019
73 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidEthylbenzeneHfpo-DaLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFNAPFOAPfpeaPfpesPftaPftrdaPfunaSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LENTON, STEVE
Phone
562-866-9980
Email
[email protected]

Frequently asked questions about Bellflower - Somerset Mwc

Is Bellflower - Somerset Mwc tap water safe to drink?

EPA monitoring detected 14 contaminants in Bellflower - Somerset Mwc'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 Bellflower - Somerset Mwc's water?

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

How many people does Bellflower - Somerset Mwc serve?

Bellflower - Somerset Mwc reports serving 46,300 people in California, per its EPA record.

Has Bellflower - Somerset Mwc had any water quality violations?

The EPA has 2 violations on file for Bellflower - Somerset Mwc, of which 0 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.