Drinking water quality · 2024
· Verified
What's in Huntsville, AL tap water
32 contaminants were measured in the Huntsville, AL water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 32
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- AL
PFAS — EPA UCMR5 (2023–2025)
2 PFAS compounds above EPA limits in Huntsville, AL
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (2.3×)below national p90 (19.900000000000006 ng/L across detecting U.S. systems)
PFOA (Perfluorooctanoic acid)
● Over EPA limit (1.2×)below national p90 (13.649999999999999 ng/L across detecting U.S. systems)
PFPeA
● Detected (no federal limit)below national p90 (15.95999999999999 ng/L across detecting U.S. systems)
PFHxA
● Detected (no federal limit)below national p90 (12.190000000000003 ng/L across detecting U.S. systems)
PFBA
● Detected (no federal limit)near national p90 (18 ng/L across detecting U.S. systems)
PFBS
● Detected (no federal limit)below national p90 (13.909999999999979 ng/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Huntsville, AL's drinking water comes from ground water, drawn from 6 sources.
Source
- TENNESSEE RIVER · 2
- DALLAS WELL
- WILLIAMS WELL
- LINCOLN WELL
- + 1 more
Treatment
- SOUTHWEST WTP
- SOUTH PARKWAY WTP
- WILLIAMS WTP
- + 2 more
Distribution
Also buys water from LIMESTONE COUNTY WATER & SEWER AUTH..
Historical readings · EPA Six-Year Review (2012–2019)
3 contaminants historically over EPA limits in Huntsville, AL
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) |
|---|---|---|---|
PCE worst: 2012 | 0.0094 mg/L 1.9× | 0.005 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2016 | 0.0733 mg/L 1.2× | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
TTHM worst: 2017 | 0.09 mg/L 1.1× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
TCE worst: 2012 | 0.00356 mg/L within | 0.005 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE worst: 2012 | 3.15 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE NITRITE worst: 2013 | 2.96 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
GROSS ALPHA worst: 2017 | 4.1 pCi/L within | 15 pCi/L | '17'18 |
FLUORIDE worst: 2012 | 0.93 mg/L within | 4 mg/L | '12'13'14'15'16'17'18'19 |
CARBON TETRACHLORIDE worst: 2013 | 0.00054 mg/L within below national p90 | 0.005 mg/L | '13 |
BARIUM worst: 2019 | 0.026 mg/L within below national p90 | 2 mg/L | '19 |
TOLUENE worst: 2017 | 0.00077 mg/L within | 1 mg/L | '17 |
COPPER worst: 2018 | 0.216 mg/L below national p90 | — | '18'19 |
LEAD worst: 2018 | 0.037 mg/L | — | '18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.00571 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.0187 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.00148 mg/L | — | '12'13'14'15'16'17'18'19 |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 2.1–3.8 mg/LReported levelHuntsville | 4 mg/LMRDLG | Approaching the limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 118–217 mg/LReported levelHuntsville | 500 mg/LMCL | Within the limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 69.6–192 mg/LReported levelHuntsville | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 6.8–8.6Reported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 0.92–2.3 mg/LReported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.62 NTUReported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| AluminumA common element sometimes used as a treatment coagulant. | 0–0.08 mg/LReported levelLimestone Co Turner WTP | 0.2 mg/LMCL | Within the limit |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 0.01 mg/LReported levelLimestone Co Turner WTP | 5 mg/LMCL | Within the limit |
| SodiumA naturally occurring salt component. | 4.4–12.8 mg/LReported levelHuntsville | None set | Detected — no federal limit |
Inorganic chemicals
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 4Reported levelLimestone Co Turner WTP | 0MCLG | Detected — no federal limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | 0.0002AverageDetection | None set | Detected — no federal limit |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 0.0004AverageDetection | None set | Detected — no federal limit |
| PFAS | 0.0339–0.0491Reported levelLcwsa | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TetrachloroethyleneAn industrial solvent (PCE) used in dry cleaning and degreasing. | 0–0.72 ug/LReported levelHuntsville | 0 ug/LMCLG | Detected — no federal limit |
People also ask about Huntsville, AL's water
+Is Huntsville, AL tap water safe to drink in 2024?
Every one of the 32 contaminants measured in Huntsville, AL's 2024 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 Huntsville, AL tap water?
32 contaminants were measured in Huntsville, AL's 2024 Consumer Confidence Report, spanning pfas ("forever chemicals"), metals, and disinfection byproducts. 15 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 Huntsville, AL tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: 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 Huntsville, AL'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 Huntsville, AL'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.