Drinking water quality · 2023
· Verified
What's in San Bernardino City — San Bernardino, Ca, CA tap water
18 contaminants were measured in the San Bernardino City — San Bernardino, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2023
- Contaminants measured
- 18
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Nitrate
- Service area
- CA
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 17.6 mg/LAverageLocal Groundwater Average Value | 10 mg/LMCL | At or above the limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.42 mg/LAverageLocal Groundwater Average Value | 4 mg/LMCL | Within the limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| Asbestos | Not detected MFLRangeLocal Groundwater Range (low-high) | 7 MFLMCL | None detected |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.026–0.71 mg/LRangeLocal Groundwater Range (low-high) | None set | Within the limit |
| NickelA metal from natural deposits and industrial discharge. | Not detectedRangeLocal Groundwater Range (low-high) | None set | None detected |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.33AverageLocal Groundwater Average Value | None set | Detected — no federal limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.68 mg/LAverageLocal Groundwater Average Value | None set | Within the limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.03 NTUAverageLocal Groundwater Average Value | 1 NTUMCL | Within the limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | Not detectedRangeLocal Groundwater Range (low-high) | None set | None detected |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0.86AverageLocal Groundwater Average Value | None set | Detected — no federal limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 3.8AverageLocal Groundwater Average Value | None set | Detected — no federal limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cis Dichloroethylene 12 | Not detectedRangeLocal Groundwater Range (low-high) | None set | None detected |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| Dichloropropane 12 | Not detectedAverageLocal Groundwater Average Value | None set | None detected |
+By source (2)— Local Groundwater Average Value, Local Groundwater Range (low-high)
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | Not detected pCi/LAverageLocal Groundwater Average Value | 15 pCi/LMCL | Within the limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 3.2 pCi/LAverageLocal Groundwater Average Value | 20 pCi/LMCL | Detected — no federal limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TrichloroethyleneAn industrial solvent (TCE) used in metal degreasing. | Not detectedRangeLocal Groundwater Range (low-high) | 5MCL | None detected |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| Dichloromethane | 0.01AverageLocal Groundwater Average Value | None set | Detected — no federal limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
| TetrachloroethyleneAn industrial solvent (PCE) used in dry cleaning and degreasing. | 0.06AverageLocal Groundwater Average Value | 5MCL | Detected — no federal limit |
+By source (2)— Local Groundwater Range (low-high), Local Groundwater Average Value
| |||
People also ask about San Bernardino City — San Bernardino, Ca, CA's water
+Is San Bernardino City — San Bernardino, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the San Bernardino City — San Bernardino, Ca, CA water utility lists 1 contaminant at or above the federal limit: Nitrate. 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 San Bernardino City — San Bernardino, Ca, CA tap water?
18 contaminants were measured in San Bernardino City — San Bernardino, Ca, CA's 2023 Consumer Confidence Report, spanning disinfection byproducts, inorganic chemicals, and metals. 8 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 San Bernardino City — San Bernardino, Ca, CA tap water?
One contaminant in San Bernardino City — San Bernardino, Ca, CA's 2023 report sits at or above the federal limit: Nitrate (1.8× 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 San Bernardino City — San Bernardino, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is Nitrate, at 1.8× the federal threshold. It belongs to the inorganic chemicals family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from San Bernardino City — San Bernardino, Ca, CA's 2023 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 San Bernardino City — San Bernardino, 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 2023 report; a new report will replace it once the utility publishes its next annual update.