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Tap water quality report

Calleguas Municipal Water Dist

EPA monitoring tested this supplier for 81 contaminants and detected 30. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
30
detected
0
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
Ventura

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
2
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1992-03-01 → 1992-03-31
TT Health-based Resolved 1992-03-01 → 1992-03-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
19 µg/L
No EPA limit set
 392/392 SYR4 2012–2019
Bromoform
28 µg/L
No EPA limit set
 392/392 SYR4 2012–2019
Dibromochloromethane
19.2 µg/L
No EPA limit set
 390/390 SYR4 2012–2019
TTHM
57 µg/L 71%
of the EPA limit 80 µg/L
 380/380 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
22 µg/L 37%
of the EPA limit 60 µg/L
 350/377 SYR4 2012–2019
Chloroform
14 µg/L
No EPA limit set
 343/387 SYR4 2012–2019
Dibromoacetic Acid
11 µg/L
No EPA limit set
 318/373 SYR4 2012–2019
Dichloroacetic Acid
11 µg/L
No EPA limit set
 238/365 SYR4 2012–2019
Nitrate
1514.2 µg/L 15%
of the EPA limit 10000 µg/L
 190/364 SYR4 2012–2019
Monobromoacetic Acid
8 µg/L
No EPA limit set
 178/362 SYR4 2012–2019
Gross Beta Particle Activity
11.8 pCi/L
No EPA limit set
 149/155 SYR4 2012–2019
Combined Uranium
76.288 µg/L 254%
of the EPA limit, in the worst sample — 30 µg/L
 147/156 SYR4 2012–2019
Fluoride
1000 µg/L 25%
of the EPA limit 4000 µg/L
 107/108 SYR4 2012–2019
Trichloroacetic Acid
6 µg/L
No EPA limit set
 87/353 SYR4 2012–2019
Nitrate-Nitrite
900000 µg/L 9000%
of the EPA limit, in the worst sample — 10000 µg/L
 57/108 SYR4 2012–2019
Barium
111 µg/L 5.6%
of the EPA limit 2000 µg/L
 38/63 SYR4 2012–2019
Selenium
26 µg/L 52%
of the EPA limit 50 µg/L
 36/63 SYR4 2012–2019
Arsenic
9 µg/L 90%
of the EPA limit 10 µg/L
 32/64 SYR4 2012–2019
Dichloromethane
6.1 µg/L 122%
of the EPA limit, in the worst sample — 5 µg/L
 20/97 SYR4 2012–2019
Lead
7.4 µg/L 49%
of the EPA limit 15 µg/L
 18/64 SYR4 2012–2019
Copper
650 µg/L 50%
of the EPA limit 1300 µg/L
 15/109 SYR4 2012–2019
Chromium
42 µg/L 42%
of the EPA limit 100 µg/L
 15/63 SYR4 2012–2019
Mercury
0.1900 µg/L 9.5%
of the EPA limit 2 µg/L
 9/63 SYR4 2012–2019
Monochloroacetic Acid
6 µg/L
No EPA limit set
 7/347 SYR4 2012–2019
Nitrite
500 µg/L 50%
of the EPA limit 1000 µg/L
 6/108 SYR4 2012–2019
Xylenes, Total
1.2 µg/L 0%
of the EPA limit 10000 µg/L
 6/53 SYR4 2012–2019
1,2-DIBROMO-3-CHLOROPROPANE
0.0100 µg/L 5%
of the EPA limit 0.2000 µg/L
 1/62 SYR4 2012–2019
Bromate
6.7 µg/L 67%
of the EPA limit 10 µg/L
 1/12 SYR4 2014–2019
Cadmium
0.2000 µg/L 4%
of the EPA limit 5 µg/L
 1/63 SYR4 2012–2019
Dinoseb
6 µg/L 86%
of the EPA limit 7 µg/L
 1/63 SYR4 2012–2019
51 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MCCAFFREY, KRISTINE
Phone
805-579-7138
Email
kmccaffrey@calleguas.com

Frequently asked questions about Calleguas Municipal Water Dist

Is Calleguas Municipal Water Dist tap water safe to drink?

EPA monitoring detected 30 contaminants in Calleguas Municipal Water Dist'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 Calleguas Municipal Water Dist's water?

EPA monitoring detected Bromodichloromethane, Bromoform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Calleguas Municipal Water Dist serve?

Calleguas Municipal Water Dist reports serving 0 people in California, per its EPA record.

Has Calleguas Municipal Water Dist had any water quality violations?

The EPA has 2 violations on file for Calleguas Municipal Water Dist, 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.