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Tap water quality report

South Mountain Mutual Water Co

EPA monitoring tested this supplier for 80 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
17
detected
58
people served
6
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
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.

6
health-based violations
41
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-07-01 → 2010-07-31
MCL Health-based Resolved 2010-07-01 → 2010-07-31
MCL Health-based Resolved 2000-01-01 → 2000-12-30
MCL Health-based Resolved 2000-01-01 → 2000-12-30
MCL Health-based Resolved 1994-10-01 → 1994-11-30
MCL Health-based Resolved 1994-10-01 → 1994-11-30
MR Monitoring Resolved 2016-03-01 → 2016-03-31
MR Monitoring Resolved 2016-03-01 → 2016-03-31
MR Monitoring Resolved 2016-03-01
MR Monitoring Resolved 2016-03-01

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 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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2025
Nitrate
4158.4 µg/L 42%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Selenium
66 µg/L 132%
of the EPA limit, in the worst sample — 50 µg/L
 14/14 SYR4 2013–2019
Fluoride
800 µg/L 20%
of the EPA limit 4000 µg/L
 4/4 SYR4 2013–2019
Nitrate-Nitrite
3400 µg/L 34%
of the EPA limit 10000 µg/L
 3/3 SYR4 2016–2019
Arsenic
7 µg/L 70%
of the EPA limit 10 µg/L
 2/4 SYR4 2013–2019
Bromodichloromethane
1.1 µg/L
No EPA limit set
 2/3 SYR4 2015–2019
Bromoform
11.6 µg/L
No EPA limit set
 2/3 SYR4 2015–2019
Dibromochloromethane
4.7 µg/L
No EPA limit set
 2/3 SYR4 2015–2019
TTHM
17.4 µg/L 22%
of the EPA limit 80 µg/L
 2/3 SYR4 2015–2019
Barium
20.8 µg/L 1%
of the EPA limit 2000 µg/L
 1/4 SYR4 2013–2019
Cadmium
0.3000 µg/L 6%
of the EPA limit 5 µg/L
 1/4 SYR4 2013–2019
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 1/4 SYR4 2013–2019
Combined Uranium
6.6454 µg/L 22%
of the EPA limit 30 µg/L
 1/1 SYR4 2019
Dibromoacetic Acid
6 µg/L
No EPA limit set
 1/3 SYR4 2015–2019
Total Haloacetic Acids (HAA5)
7 µg/L 12%
of the EPA limit 60 µg/L
 1/3 SYR4 2015–2019
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/3 SYR4 2015–2019
63 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SCHIEFERLE, JANICE
Phone
805-525-9946
Email
jschieferle@yahoo.com

Frequently asked questions about South Mountain Mutual Water Co

Is South Mountain Mutual Water Co tap water safe to drink?

EPA monitoring detected 17 contaminants in South Mountain Mutual Water Co'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 South Mountain Mutual Water Co's water?

EPA monitoring detected Lead, Nitrate, Selenium, Fluoride, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.

How many people does South Mountain Mutual Water Co serve?

South Mountain Mutual Water Co reports serving 58 people in California, per its EPA record.

Has South Mountain Mutual Water Co had any water quality violations?

The EPA has 41 violations on file for South Mountain Mutual Water Co, of which 6 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.