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Tap water quality report

Plumas Lake

EPA monitoring tested this supplier for 78 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
13
detected
10,464
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Local government
Counties served
Yuba

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
4
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2005-06-01 → 2005-06-30
MR Monitoring Resolved 2005-06-01 → 2005-06-30
MR Monitoring Resolved 2004-01-01 → 2004-12-31
MR Monitoring Resolved 2004-01-01 → 2004-12-31

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
Fluoride
576.5 µg/L 14%
of the EPA limit 4000 µg/L
worst single sample: 1000 µg/L
12/14 SYR4 2012–2014
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2024
Barium
148 µg/L 7.4%
of the EPA limit 2000 µg/L
worst single sample: 150 µg/L
5/5 SYR4 2012–2016
Bromodichloromethane
2.3495 µg/L
No EPA limit set
worst single sample: 2.41 µg/L
2/9 SYR4 2013–2019
Dibromochloromethane
2.191 µg/L
No EPA limit set
worst single sample: 2.22 µg/L
2/9 SYR4 2013–2019
Nitrate
160.46 µg/L 1.6%
of the EPA limit 10000 µg/L
 2/54 SYR4 2012–2019
TTHM
8.3025 µg/L 10%
of the EPA limit 80 µg/L
worst single sample: 8.59 µg/L
2/9 SYR4 2013–2019
Arsenic
2.3 µg/L 23%
of the EPA limit 10 µg/L
 1/11 SYR4 2012–2019
Bromoform
2.76 µg/L
No EPA limit set
 1/9 SYR4 2013–2019
Chloroform
1.2 µg/L
No EPA limit set
 1/9 SYR4 2013–2019
Dibromoacetic Acid
1.6 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Ethylbenzene
1.8 µg/L 0.3%
of the EPA limit 700 µg/L
 1/26 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
1.6 µg/L 2.7%
of the EPA limit 60 µg/L
 1/7 SYR4 2013–2019
65 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbon TetrachlorideChromiumDichloromethaneDichloroacetic AcidHfpo-DaLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TILLOTSON, JOHN
Phone
530-743-8573
Email
jtillotson@opud.org

Frequently asked questions about Plumas Lake

Is Plumas Lake tap water safe to drink?

EPA monitoring detected 13 contaminants in Plumas Lake'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 Plumas Lake's water?

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

How many people does Plumas Lake serve?

Plumas Lake reports serving 10,464 people in California, per its EPA record.

Has Plumas Lake had any water quality violations?

The EPA has 4 violations on file for Plumas Lake, 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.