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Golden State Water Company - Edna

EPA monitoring tested this supplier for 49 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

49
contaminants tested
14
detected
1,493
people served
2
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.

2
health-based violations
2
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-02-01 → 2006-02-28
MCL Health-based Resolved 2003-02-01 → 2006-02-28

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
Selenium
170 µg/L 340%
of the EPA limit, in the worst sample — 50 µg/L
 857/872 SYR4 2012–2019
Nitrate
8300 µg/L 83%
of the EPA limit 10000 µg/L
 476/482 SYR4 2012–2019
Arsenic
4.5 µg/L 45%
of the EPA limit 10 µg/L
 91/290 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2023
Fluoride
250 µg/L 6.3%
of the EPA limit 4000 µg/L
 8/8 SYR4 2014–2019
Bromodichloromethane
2.7 µg/L
No EPA limit set
 6/6 SYR4 2013–2019
Bromoform
7.2 µg/L
No EPA limit set
 6/6 SYR4 2013–2019
Dibromochloromethane
5.8 µg/L
No EPA limit set
 6/6 SYR4 2013–2019
TTHM
16 µg/L 20%
of the EPA limit 80 µg/L
 6/6 SYR4 2013–2019
Dibromoacetic Acid
1.8 µg/L
No EPA limit set
 5/6 SYR4 2013–2019
Nitrate-Nitrite
6200 µg/L 62%
of the EPA limit 10000 µg/L
 4/4 SYR4 2017–2019
Total Haloacetic Acids (HAA5)
3.8 µg/L 6.3%
of the EPA limit 60 µg/L
 4/6 SYR4 2013–2019
Combined Uranium
5.364 µg/L 18%
of the EPA limit 30 µg/L
 2/2 SYR4 2019
Monochloroacetic Acid
2.1 µg/L
No EPA limit set
 1/6 SYR4 2013–2019
35 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBariumBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDichloroacetic AcidEthylbenzeneLeadMercuryMonobromoacetic AcidNitriteStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SCHULTISE, DAVID
Phone
310-263-4141
Email
david.schultise@gswater.com

Frequently asked questions about Golden State Water Company - Edna

Is Golden State Water Company - Edna tap water safe to drink?

EPA monitoring detected 14 contaminants in Golden State Water Company - Edna'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 Golden State Water Company - Edna's water?

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

How many people does Golden State Water Company - Edna serve?

Golden State Water Company - Edna reports serving 1,493 people in California, per its EPA record.

Has Golden State Water Company - Edna had any water quality violations?

The EPA has 2 violations on file for Golden State Water Company - Edna, 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.