Drinking water quality · 2023
· Verified
What's in City of Alhambra — Alhambra, Ca, CA tap water
33 contaminants were measured in the City of Alhambra — Alhambra, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 33
- Over federal limit
- 0
- Approaching the limit
- 2
- Service area
- CA
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based2 violations on record · most recent Nov 2009resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 0–9.2 ug/LRangeSurface Water MWD-Weymouth Plant | None set | Approaching the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 9.5–47 ug/LRangeSource water | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 0–11 ug/LRangeSource water | None set | Within the limit |
| ChlorateA byproduct that can form during disinfection, especially when hypochlorite solutions degrade. | 80 ug/LReported levelMWD-Weymouth Plant | None set | Detected — no federal limit |
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0–3.4 ug/LRangeSource water | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.01–3.59 mg/LRangeSource water | None set | Approaching the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0–6.7 mg/LRangeSource water | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.36–0.81 mg/LRangeSource water | 4 mg/LMCL | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0–7.36 pCi/LRangeSource water | 15 pCi/LMCL | Within the limit |
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | Not detected pCi/LReported levelSource water | 5 pCi/LMCL | None detected |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 0–5 pCi/LRangeSurface Water MWD-Weymouth Plant | None set | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.3–7.9 pCi/LRangeSource water | 20 pCi/LMCL | Detected — no federal limit |
Other
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.31 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.124 mg/LReported levelSurface Water MWD-Weymouth Plant | 2 mg/LMCL | 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 |
| AluminumA common element sometimes used as a treatment coagulant. | 0–0.15 mg/LRangeSurface Water MWD-Weymouth Plant | None set | Detected — no federal limit |
| BoronA naturally occurring element from rock and soil. | 140 ug/LReported levelMWD-Weymouth Plant | None set | Detected — no federal limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 31–78 mg/LRangeSource water | None set | Detected — no federal limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 2.7–8 ug/LRangeSource water | None set | Detected — no federal limit |
| LithiumA naturally occurring element found in some groundwater. | 32–47 ug/LRangeMWD-Weymouth Plant | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 23–29 mg/LRangeMWD-Weymouth Plant | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 4.6–5.4 mg/LRangeMWD-Weymouth Plant | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 93–117 mg/LRangeMWD-Weymouth Plant | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.06 NTUReported levelSurface Water MWD-Weymouth Plant | None set | Within the limit |
| AlkalinityA measure of the water's capacity to neutralize acids. | 120–210 mg/LRangeSource water | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 110–314 mg/LRangeSource water | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 8.2Reported levelMWD-Weymouth Plant | 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. | 0Reported levelSource water | None set | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0–0.84RangeSource water | None set | Detected — no federal limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | Not detected ng/LReported levelSource water | None set | None detected |
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | Not detected ng/LReported levelSource water | None set | None detected |
People also ask about City of Alhambra — Alhambra, Ca, CA's water
+Is City of Alhambra — Alhambra, Ca, CA tap water safe to drink in 2023?
Every one of the 33 contaminants measured in City of Alhambra — Alhambra, Ca, CA's 2023 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in City of Alhambra — Alhambra, Ca, CA tap water?
33 contaminants were measured in City of Alhambra — Alhambra, Ca, CA's 2023 Consumer Confidence Report, spanning metals, disinfection byproducts, and physical & aggregate. 7 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in City of Alhambra — Alhambra, Ca, CA tap water approaching the federal limit?
2 contaminants are between 80% and 100% of the federal limit in this report: Bromate and Chlorine. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from City of Alhambra — Alhambra, 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 City of Alhambra — Alhambra, 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.