Drinking water quality · 2023
· Verified
What's in City of Milpitas — Milpitas, Ca, CA tap water
31 contaminants were measured in the City of Milpitas — Milpitas, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 31
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
state-level CCR
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 44.5 ug/LRunning annual avgLocation RAA | None set | Within the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 50.3 ug/LRunning annual avgLocation RAA | None set | Within the limit |
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 2.45 ug/LAverageValley Water | None set | Within the limit |
+By source (2)— Valley Water, SFPUC
| |||
| ChlorateA byproduct that can form during disinfection, especially when hypochlorite solutions degrade. | 134 ug/LAverageSystem-wide | 800 ug/LNL | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 2.77 mg/LRunning annual avgLocation RAA | None set | Within the limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.4 NTUAverageSFPUC | None set | Within the limit |
+By source (2)— SFPUC, Valley Waterb
| |||
| AlkalinityA measure of the water's capacity to neutralize acids. | 56 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 57 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1.7 mg/LAverageValley Waterb | None set | Detected — no federal limit |
+By source (2)— Valley Waterb, SFPUC
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 3.3 pCi/LAverageValley Waterb | 15 pCi/LMCL | Within the limit |
+By source (2)— Valley Waterb, SFPUC
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.3 pCi/LAverageValley Waterb | 20 pCi/LMCL | Detected — no federal limit |
+By source (2)— Valley Waterb, SFPUC
| |||
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.8 mg/LAverageValley Waterb | 4 mg/LMCL | Within the limit |
+By source (2)— Valley Waterb, SFPUC
| |||
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.9 mg/LAverageValley Waterb | 10 mg/LMCL | Within the limit |
+By source (2)— Valley Waterb, SFPUC
| |||
| BromideA naturally occurring salt found in source water. | Not detected ug/LAverageSystem-wide | None set | None detected |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1.7 ug/L90th percentileAt the tap | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.062 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | Not detected mg/LRangeSFPUC | None set | None detected |
+By source (2)— SFPUC, Valley Water
| |||
| PotassiumA naturally occurring mineral from rock and soil. | Not detected mg/LAverageSystem-wide | None set | None detected |
| Vanadium | Not detected ug/LRangeSystem-wide | 50 ug/LNL | None detected |
| BoronA naturally occurring element from rock and soil. | 44 ug/LAverageSystem-wide | 1000 ug/LNL | Detected — no federal limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 15 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| LithiumA naturally occurring element found in some groundwater. | 2 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 4.9 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 6.4 ug/LAverageSystem-wide | 0.4 ug/LNL | Detected — no federal limit |
| SilicaA naturally occurring compound from sand and rock. | 7.4 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 13 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Nitrate Nitrite | 0.5 mg/LAverageValley Waterb | 10 mg/LMCL | Within the limit |
+By source (2)— Valley Waterb, SFPUC
| |||
| Chromium | 0.1 ug/LAverageSFPUC | None set | Within the limit |
+By source (2)— SFPUC, Valley Waterb
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cryptosporidium | Not detectedAverageSFPUC | None set | Detected — no federal limit |
+By source (2)— Valley Waterb, SFPUC
| |||
| Giardia lamblia | 0.02AverageSFPUC | None set | Detected — no federal limit |
+By source (2)— SFPUC, Valley Waterb
| |||
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0.19 %AverageSystem-wide | None set | Detected — no federal limit |
Source: City of Milpitas — Milpitas, Ca, CA's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about City of Milpitas — Milpitas, Ca, CA's water
+Is City of Milpitas — Milpitas, Ca, CA tap water safe to drink in 2023?
Every one of the 31 contaminants measured in City of Milpitas — Milpitas, 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 Milpitas — Milpitas, Ca, CA tap water?
31 contaminants were measured in City of Milpitas — Milpitas, Ca, CA's 2023 Consumer Confidence Report, spanning metals, disinfection byproducts, and physical & aggregate. 10 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from City of Milpitas — Milpitas, 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 Milpitas — Milpitas, 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.
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