Drinking water quality · 2022
· Verified
What's in City of Shasta Lake — Shasta Lake, Ca, CA tap water
13 contaminants were measured in the City of Shasta Lake — Shasta Lake, Ca, CA water system's 2022 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2022
- Contaminants measured
- 13
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Turbidity
- Service area
- CA
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 1 NTUReported levelContact Clarification/Filtration | None set | At or above the limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1.8 mg/LReported levelSystem-wide | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 39.8 ug/LReported levelSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 13.9 ug/LReported levelSystem-wide | None set | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 3.1 ug/LReported levelSystem-wide | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.08 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected ug/L90th percentileAt the tap | None set | Within the limit |
+By source (2)— No. of Samples Collected, No. of Schools Requesting Lead Sampling
| |||
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.31 ug/LReported levelSystem-wide | None set | Detected — no federal limit |
| Strontium | 57 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.56 mg/LReported levelSystem-wide | 4 mg/LMCL | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.17 mg/LReported levelSystem-wide | 10 mg/LMCL | Within the limit |
| BromideA naturally occurring salt found in source water. | 8.1 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Highest single sampleNo. of Detections | 0MCLG | None detected |
People also ask about City of Shasta Lake — Shasta Lake, Ca, CA's water
+Is City of Shasta Lake — Shasta Lake, Ca, CA tap water safe to drink in 2022?
The 2022 Consumer Confidence Report for the City of Shasta Lake — Shasta Lake, Ca, CA water utility lists 1 contaminant at or above the federal limit: Turbidity. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in City of Shasta Lake — Shasta Lake, Ca, CA tap water?
13 contaminants were measured in City of Shasta Lake — Shasta Lake, Ca, CA's 2022 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 4 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in City of Shasta Lake — Shasta Lake, Ca, CA tap water?
One contaminant in City of Shasta Lake — Shasta Lake, Ca, CA's 2022 report sits at or above the federal limit: Turbidity (1.0× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in City of Shasta Lake — Shasta Lake, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2022 report is Turbidity, at 1.0× the federal threshold. It belongs to the physical & aggregate family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from City of Shasta Lake — Shasta Lake, Ca, CA's 2022 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is City of Shasta Lake — Shasta Lake, Ca, CA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2022 report; a new report will replace it once the utility publishes its next annual update.