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Afuera De Chorro Water Company

EPA monitoring tested this supplier for 54 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

54
contaminants tested
14
detected
85
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Luis Obispo

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
5
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2005-01-01 → 2005-01-31
MR Monitoring Resolved 2005-01-01 → 2005-01-31
MR Monitoring Resolved 1993-07-01 → 2003-12-31

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 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
3470 µg/L 35%
of the EPA limit 10000 µg/L
worst single sample: 4100 µg/L
30/90 SYR4 2012–2019
Fluoride
1505 µg/L 38%
of the EPA limit 4000 µg/L
worst single sample: 1700 µg/L
14/14 SYR4 2012–2018
Barium
286.5 µg/L 14%
of the EPA limit 2000 µg/L
worst single sample: 300 µg/L
10/14 SYR4 2012–2018
Lead
0.0028 mg/L 19%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2023
Arsenic
3.08 µg/L 31%
of the EPA limit 10 µg/L
worst single sample: 3.1 µg/L
2/14 SYR4 2012–2018
Bromodichloromethane
7.5 µg/L
No EPA limit set
 1/1 SYR4 2019
Bromoform
20 µg/L
No EPA limit set
 1/1 SYR4 2019
Chloroform
1.7 µg/L
No EPA limit set
 1/1 SYR4 2019
Dibromoacetic Acid
8.5 µg/L
No EPA limit set
 1/1 SYR4 2019
Dibromochloromethane
20 µg/L
No EPA limit set
 1/1 SYR4 2019
Dichloroacetic Acid
1.6 µg/L
No EPA limit set
 1/1 SYR4 2019
Nitrate-Nitrite
610 µg/L 6.1%
of the EPA limit 10000 µg/L
 1/4 SYR4 2018
TTHM
49 µg/L 61%
of the EPA limit 80 µg/L
 1/1 SYR4 2019
Total Haloacetic Acids (HAA5)
10 µg/L 17%
of the EPA limit 60 µg/L
 1/1 SYR4 2019
40 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAtrazineBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylene DibromideEthylbenzeneLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MAINO, THOMAS
Phone
805-550-4200
Email
tomm@mainoslo.com

Frequently asked questions about Afuera De Chorro Water Company

Is Afuera De Chorro Water Company tap water safe to drink?

EPA monitoring detected 14 contaminants in Afuera De Chorro Water Company'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 Afuera De Chorro Water Company's water?

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

How many people does Afuera De Chorro Water Company serve?

Afuera De Chorro Water Company reports serving 85 people in California, per its EPA record.

Has Afuera De Chorro Water Company had any water quality violations?

The EPA has 5 violations on file for Afuera De Chorro Water Company, 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.