Drinking water quality · 2024
What's in Huntsville, AL tap water
33 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
- 33
- 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×)PFOA (Perfluorooctanoic acid)
● Over EPA limit (1.2×)PFPeA
● Detected (no federal limit)PFHxA
● Detected (no federal limit)PFBA
● Detected (no federal limit)PFBS
● Detected (no federal limit)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..
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.
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 |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 21.4–47.8 ug/LReported levelHuntsville | None set | Within the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 24.1–51.6 ug/LReported levelLimestone Co Turner WTP | None set | Within the limit |
| BromodichloromethaneA trihalomethane disinfection byproduct. | 5.4 ug/LReported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
| ChloroformA trihalomethane formed when chlorine reacts with organic matter in water. | 25 ug/LReported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
| DibromochloromethaneA trihalomethane disinfection byproduct. | 0.66 ug/LReported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.62 NTUReported levelLimestone Co Turner WTP | None set | 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 |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 118–217 mg/LReported levelHuntsville | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.57–3.5 mg/LReported levelLimestone Co Turner WTP | 10 mg/LMCLG | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0–0.74 mg/LReported levelHuntsville | 4 mg/LMCLG | Within the limit |
| ChlorideA naturally occurring salt compound. | 7–11.4 mg/LReported levelLimestone Co Turner WTP | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 8.8–27.3 mg/LReported levelHuntsville | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.19 mg/LReported levelHuntsville | 1.3 mg/LMCLG | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1 ug/LReported levelHuntsville | 0 ug/LMCLG | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.02–0.03 mg/LReported levelHuntsville | 2 mg/LMCLG | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 0.03–0.08 mg/LReported levelHuntsville | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 4.4–12.8 mg/LReported levelHuntsville | None set | Detected — no federal limit |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 0.01 mg/LReported levelLimestone Co Turner WTP | 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 | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Heptachlor Epoxide | 0–0.021 ug/LReported levelHuntsville | 0 ug/LMCLG | Within the limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 0.0004 ng/LAverageDetection | None set | Within the limit |
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | 0.0002AverageDetection | None set | Detected — no federal limit |
| PFAS | 0.0339–0.0491Reported levelLcwsa | None set | Detected — no federal limit |
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 |
People also ask about Huntsville, AL's water
+Is Huntsville, AL tap water safe to drink in 2024?
Every one of the 33 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?
33 contaminants were measured in Huntsville, AL's 2024 Consumer Confidence Report, spanning pfas ("forever chemicals"), metals, and disinfection byproducts. 9 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.