Drinking water quality · 2024
· Verified
What's in Jackson, MS tap water
18 contaminants were measured in the Jackson, MS water system's 2024 annual report. Each is shown below against its federal limit — 3 sit at or above that limit.
- Reporting year
- 2024
- Contaminants measured
- 18
- Over federal limit
- 3
- Approaching the limit
- 0
- Worst contaminant
- TTHM
- Service area
- MS
Where your water comes from · EPA SDWIS
Jackson, MS's drinking water comes from surface water, drawn from 2 sources.
Source
- INTAKE IN071
- INTAKE IN072
Treatment
- TREATMENT FACILITY TF081 (FEWELL)
- TREATMENT FACILITY TF082 (CURTIS CONVEN)
- TREATMENT FACILITY TF083 (CURTIS MEMBR)
Distribution
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.
- Treatment technique violationHealth-based28 violations on record · most recent Jul 20241 open
- Maximum contaminant level exceededHealth-based22 violations on record · most recent Apr 2025resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 17.7–131 ug/LRangeRange of Detects | None set | At or above the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 14.4–97.3 ug/LRangeRange of Detects | None set | At or above the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 0.31–4.4 mg/LRangeRange of Detects | 0 mg/LMCLG | At or above the limit |
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.08–2.2 mg/LRangeRange of Detects | 0 mg/LMCLG | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cyanide | 127 ug/LReported levelSystem-wide | None set | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.55 mg/LReported levelSystem-wide | 4 mg/LMCLG | Within the limit |
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | 0.069 mg/LReported levelSystem-wide | 1 mg/LMCLG | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.46 mg/LReported levelSystem-wide | 10 mg/LMCLG | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0074 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.007–0.33 mg/LRangeRange of Detects | 1.3 mg/LMCLG | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.026 mg/LReported levelSystem-wide | 2 mg/LMCLG | Within the limit |
| SodiumA naturally occurring salt component. | 4.4 mg/LReported levelSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.02–0.36 NTURangeRange of Detects | None set | Within the limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1–1.2RangeRange of Detects | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 1.4 pCi/LReported levelSystem-wide | 0 pCi/LMCLG | Within the limit |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 2 pCi/LReported levelSystem-wide | 0 pCi/LMCLG | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Carbon Tetrachloride | 0.52 ug/LReported levelSystem-wide | 0 ug/LMCLG | Within the limit |
| Chromium | 5.9 ug/LReported levelSystem-wide | None set | Within the limit |
People also ask about Jackson, MS's water
+Is Jackson, MS tap water safe to drink in 2024?
The 2024 Consumer Confidence Report for the Jackson, MS water utility lists 3 contaminants at or above the federal limit: TTHM, HAA5, and Chloramine. 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 Jackson, MS tap water?
18 contaminants were measured in Jackson, MS's 2024 Consumer Confidence Report, spanning inorganic chemicals, metals, and disinfectants. 11 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 Jackson, MS tap water?
3 contaminants in Jackson, MS's 2024 report sit at or above the federal limit: TTHM (1.6× the limit); HAA5 (1.6× the limit); Chloramine (1.1× 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 Jackson, MS tap water?
The contaminant with the highest measured value relative to its federal limit in the 2024 report is TTHM, at 1.6× the federal threshold. It belongs to the disinfection byproducts family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Jackson, MS'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 Jackson, MS'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.