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Tap water quality report

Santa Clarita Valley Water Agency

EPA monitoring tested this supplier for 112 contaminants and detected 34. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

112
contaminants tested
34
detected
294,090
people served
1
health-based violations
Water source
Surface water
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.

1
health-based violations
1
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1993-09-01 → 1993-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0133 µg/L 9/18 2024
Pfpea 0.0226 µg/L 9/18 2024
Pfhxa 0.0142 µg/L 8/18 2024
PFOA 0.0169 µg/L 7/18 2024
PFBS 0.0069 µg/L 6/18 2024
PFHXS 0.0076 µg/L 6/18 2024
Pfhpa 0.0063 µg/L 5/18 2024
PFOS 0.0075 µg/L 5/18 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
6102 µg/L 61%
of the EPA limit 10000 µg/L
worst single sample: 6780 µg/L
656/660 SYR4 2012–2019
Bromoform
25.05 µg/L
No EPA limit set
worst single sample: 50 µg/L
240/327 SYR4 2012–2019
Dibromochloromethane
18.1 µg/L
No EPA limit set
worst single sample: 23 µg/L
239/328 SYR4 2012–2019
TTHM
46 µg/L 57%
of the EPA limit 80 µg/L
worst single sample: 70 µg/L
239/321 SYR4 2012–2019
Bromodichloromethane
10 µg/L
No EPA limit set
worst single sample: 15 µg/L
224/328 SYR4 2012–2019
Dibromoacetic Acid
6.8 µg/L
No EPA limit set
worst single sample: 8.4 µg/L
219/240 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
10.45 µg/L 17%
of the EPA limit 60 µg/L
worst single sample: 16 µg/L
192/240 SYR4 2012–2019
Fluoride
819 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 950 µg/L
163/163 SYR4 2012–2019
Chloroform
5.2 µg/L
No EPA limit set
worst single sample: 8.1 µg/L
141/325 SYR4 2012–2019
Nitrate-Nitrite
5600 µg/L 56%
of the EPA limit 10000 µg/L
worst single sample: 6100 µg/L
99/101 SYR4 2016–2019
Dichloroacetic Acid
4.6 µg/L
No EPA limit set
worst single sample: 7 µg/L
78/240 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
40/40 LCR 2025
Trichloroethylene
0.8760 µg/L 18%
of the EPA limit 5 µg/L
worst single sample: 0.9200 µg/L
37/193 SYR4 2012–2019
Combined Uranium
8.493 µg/L 28%
of the EPA limit 30 µg/L
worst single sample: 8.791 µg/L
34/36 SYR4 2012–2019
Trichloroacetic Acid
2.42 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
30/240 SYR4 2012–2019
Arsenic
4.47 µg/L 45%
of the EPA limit 10 µg/L
worst single sample: 6 µg/L
27/163 SYR4 2012–2019
Selenium
8.81 µg/L 18%
of the EPA limit 50 µg/L
worst single sample: 8.9 µg/L
19/163 SYR4 2012–2019
Lithium
53.1 µg/L
No EPA limit set
15/18 UCMR-5 2024
Gross Beta Particle Activity
6.72 pCi/L
No EPA limit set
worst single sample: 7.4 pCi/L
9/33 SYR4 2012–2019
Monobromoacetic Acid
3.575 µg/L
No EPA limit set
worst single sample: 4.1 µg/L
8/240 SYR4 2012–2019
Barium
118 µg/L 5.9%
of the EPA limit 2000 µg/L
worst single sample: 120 µg/L
5/163 SYR4 2012–2019
Toluene
0.9755 µg/L 0.1%
of the EPA limit 1000 µg/L
worst single sample: 1 µg/L
2/193 SYR4 2012–2019
Copper
150 µg/L 12%
of the EPA limit 1300 µg/L
1/163 SYR4 2012–2019
Chromium
34 µg/L 34%
of the EPA limit 100 µg/L
1/163 SYR4 2012–2019
Dichloromethane
1.9 µg/L 38%
of the EPA limit 5 µg/L
1/193 SYR4 2012–2019
Picloram
1.1 µg/L 0.2%
of the EPA limit 500 µg/L
1/32 SYR4 2012–2018
78 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolSimazineStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ABERCROMBIE, KEITH
Phone
661-388-4934
Email
[email protected]

Frequently asked questions about Santa Clarita Valley Water Agency

Is Santa Clarita Valley Water Agency tap water safe to drink?

EPA monitoring detected 34 contaminants in Santa Clarita Valley Water Agency'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 Santa Clarita Valley Water Agency's water?

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

How many people does Santa Clarita Valley Water Agency serve?

Santa Clarita Valley Water Agency reports serving 294,090 people in California, per its EPA record.

Has Santa Clarita Valley Water Agency had any water quality violations?

The EPA has 1 violation on file for Santa Clarita Valley Water Agency, of which 1 is 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.