Drinking water quality · 2024
· Verified
What's in Westfield, IN tap water
32 contaminants were measured in the Westfield, IN water system's 2024 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2024
- Contaminants measured
- 32
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- pH
- Service area
- IN
Where your water comes from · EPA SDWIS
Westfield, IN's drinking water comes from ground water, drawn from 1 source.
Source
- WELL
Treatment
- TREATMENT PLANT #1
Distribution
Historical readings · EPA Six-Year Review (2012–2019)
8 historically-detected contaminants in Westfield, IN
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
ARSENIC worst: 2014 | 0.0096 mg/L 96% near national p90 | 0.01 mg/L | '12'13'14'15'16'17'18'19 |
RADIUM 226 228 worst: 2018 | 1.35 pCi/L within below national p90 | 5 pCi/L | '18 |
GROSS ALPHA worst: 2018 | 3.93 pCi/L within | 15 pCi/L | '18 |
BARIUM worst: 2014 | 0.465 mg/L within 2.1× the national p90 | 2 mg/L | '14'17 |
FLUORIDE worst: 2014 | 0.654 mg/L within | 4 mg/L | '14'17 |
NITRATE worst: 2018 | 0.509 mg/L within | 10 mg/L | '18 |
COPPER worst: 2018 | 0.009 mg/L below national p90 | — | '18 |
LEAD worst: 2018 | 0.0014 mg/L | — | '18 |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| pHA measure of how acidic or basic the water is. | 7.7AverageSystem-wide | 6.5MCL | At or above the limit |
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.04 NTUAverageSystem-wide | 100 NTUTreatment technique | Within the limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 366 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 4.1 mg/LAverageSystem-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. | 51AverageSystem-wide | 80MCL | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 29AverageSystem-wide | 60MCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 2AverageSystem-wide | 4MRDLG | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 2.2MaximumMaximum of All Samples | 5MCL | Within the limit |
| Cryptosporidium | 0.5AverageSystem-wide | None set | Detected — no federal limit |
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | Not detectedAverageSystem-wide | 0MCLG | Detected — no federal limit |
| Giardia lamblia | 4.7AverageSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| IronA naturally occurring metal common in groundwater. | 0.11 mg/LAverageSystem-wide | 0.3 mg/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 42 ug/LAverageSystem-wide | 200 ug/LMCL | Within the limit |
| ManganeseA naturally occurring metal from soil and rock. | 0.0051 mg/LAverageSystem-wide | 0.05 mg/LMCL | Within the limit |
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | 0.8 ug/LAverageSystem-wide | 100 ug/LMCLG | Within the limit |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 12 ug/LAverageSystem-wide | 5000 ug/LMCL | Within the limit |
| NickelA metal from natural deposits and industrial discharge. | Not detected ug/LMaximumMaximum of All Samples | None set | None detected |
| SodiumA naturally occurring salt component. | 44 mg/LAverageSystem-wide | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| XylenesA group of industrial solvents found in gasoline and paint. | 0–3 ug/LRangeSystem-wide | 10 ug/LMCLG | Within the limit |
| AtrazineA widely used agricultural herbicide that reaches water through runoff. | 0.29 ug/LAverageSystem-wide | 3 ug/LMCLG | Within the limit |
| Simazine | 0.2 ug/LMaximumMaximum of All Samples | 4 ug/LMCLG | Within the limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 0.73AverageSystem-wide | 2000Public health goal | Within the limit |
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 1.6AverageSystem-wide | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.7AverageSystem-wide | 0MCLG | Detected — no federal limit |
People also ask about Westfield, IN's water
+Is Westfield, IN tap water safe to drink in 2024?
The 2024 Consumer Confidence Report for the Westfield, IN water utility lists 1 contaminant at or above the federal limit: pH. 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 Westfield, IN tap water?
32 contaminants were measured in Westfield, IN's 2024 Consumer Confidence Report, spanning metals, inorganic chemicals, and microbial. 25 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 Westfield, IN tap water?
One contaminant in Westfield, IN's 2024 report sits at or above the federal limit: pH (1.2× 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 Westfield, IN tap water?
The contaminant with the highest measured value relative to its federal limit in the 2024 report is pH, at 1.2× 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 Westfield, IN's 2024 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 Westfield, IN'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 2024 report; a new report will replace it once the utility publishes its next annual update.