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Tap water quality report

Konocti County Water District

EPA monitoring tested this supplier for 104 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
19
detected
5,928
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
Lake

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0082 µg/L 1/4 2023
Pfpea 0.0039 µg/L 1/4 2023

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
TTHM
107.32 µg/L 134%
of the EPA limit, in the worst sample — 80 µg/L
 53/53 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
40.9 µg/L 68%
of the EPA limit 60 µg/L
 53/53 SYR4 2012–2019
Trichloroacetic Acid
19.1 µg/L
No EPA limit set
 53/53 SYR4 2012–2019
Bromodichloromethane
18.52 µg/L
No EPA limit set
 52/52 SYR4 2012–2019
Chloroform
81.09 µg/L
No EPA limit set
 52/52 SYR4 2012–2019
Dibromochloromethane
7.17 µg/L
No EPA limit set
 51/52 SYR4 2012–2019
Dichloroacetic Acid
23.7 µg/L
No EPA limit set
 49/53 SYR4 2012–2019
Dibromoacetic Acid
4.1 µg/L
No EPA limit set
 30/53 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2025
Bromoform
3 µg/L
No EPA limit set
 12/52 SYR4 2012–2019
Fluoride
240 µg/L 6%
of the EPA limit 4000 µg/L
 11/16 SYR4 2012–2019
Nitrate
678 µg/L 6.8%
of the EPA limit 10000 µg/L
 10/32 SYR4 2012–2019
Bromate
37 µg/L 370%
of the EPA limit, in the worst sample — 10 µg/L
 9/72 SYR4 2012–2019
Arsenic
6.5 µg/L 65%
of the EPA limit 10 µg/L
 8/16 SYR4 2012–2019
Lithium
24 µg/L
No EPA limit set
 3/4 UCMR-5 2023
Barium
140 µg/L 7%
of the EPA limit 2000 µg/L
 1/16 SYR4 2012–2019
Monochloroacetic Acid
3.9 µg/L
No EPA limit set
 1/53 SYR4 2012–2019
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PRIEBE, KIRSTEN
Phone
707-994-2561
Email
konoctiwater@mchsi.com

Frequently asked questions about Konocti County Water District

Is Konocti County Water District tap water safe to drink?

EPA monitoring detected 19 contaminants in Konocti County Water District'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 Konocti County Water District's water?

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

How many people does Konocti County Water District serve?

Konocti County Water District reports serving 5,928 people in California, per its EPA record.

Has Konocti County Water District had any water quality violations?

The EPA has no formal drinking-water violations on file for Konocti County Water District.

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.