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Tap water quality report

City of Shasta Lake

EPA monitoring tested this supplier for 59 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

59
contaminants tested
9
detected
10,657
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
Shasta

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
3
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1993-06-01 → 1993-06-30
TT Health-based Resolved 1993-06-01 → 1993-06-30
MR Monitoring Resolved 1993-06-30 → 2000-03-01

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 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
Bromodichloromethane
4.7 µg/L
No EPA limit set
worst single sample: 4.8 µg/L
29/29 SYR4 2012–2019
Chloroform
37.14 µg/L
No EPA limit set
worst single sample: 43 µg/L
29/29 SYR4 2012–2019
Dichloroacetic Acid
6.248 µg/L
No EPA limit set
worst single sample: 7.4 µg/L
29/29 SYR4 2012–2019
TTHM
41.1 µg/L 51%
of the EPA limit 80 µg/L
worst single sample: 46.7 µg/L
29/29 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
24.58 µg/L 41%
of the EPA limit 60 µg/L
worst single sample: 26 µg/L
29/29 SYR4 2012–2019
Trichloroacetic Acid
21.42 µg/L
No EPA limit set
worst single sample: 23.8 µg/L
29/29 SYR4 2012–2019
Lead
0.0011 mg/L 7.5%
of the EPA limit 0.0150 mg/L
 27/27 LCR 2025
Dibromoacetic Acid
1.7 µg/L
No EPA limit set
 1/29 SYR4 2012–2019
Fluoride
100 µg/L 2.5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
50 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosBariumBeryllium, TotalBromoformCopperCyanideCadmiumChromiumDibromochloromethaneHfpo-DaLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumThallium, TotalLithium

Utility contact

Contact
CARR, CHRIS
Phone
530-275-7491
Email
ccarr@cityofshastalake.org

Frequently asked questions about City of Shasta Lake

Is City of Shasta Lake tap water safe to drink?

EPA monitoring detected 9 contaminants in City of Shasta 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 City of Shasta Lake's water?

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

How many people does City of Shasta Lake serve?

City of Shasta Lake reports serving 10,657 people in California, per its EPA record.

Has City of Shasta Lake had any water quality violations?

The EPA has 3 violations on file for City of Shasta Lake, 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.