Tap Water Results

Is Jackson, MS tap water safe?

Supplied by City of Jackson · serves 189,673 people (71,846 connections) · Surface water · EPA ID MS0250008

Data: U.S. EPA · How we read the data · How we check it

Most of Jackson gets its water from City of Jackson. Parts of the city are served by 2 smaller systems: City of Jackson-Maddox Road (28,098 people), Hinds County Detention Center-Gallatin St (25 people). Your water bill names your system.

Summary

An unresolved health-based violation.

Is it an emergency? No: these findings are about longer-term exposure, and nothing in EPA's data calls for you to stop drinking the water today. If your utility ever issues a boil-water or do-not-drink notice, follow it.

PFAS
Not detectedNone of 29 PFAS found above EPA's reporting limits in 12 samples (2023–2025).
Lead
Below action level3.2 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period ending Jun 2026. Your home's pipes can make yours higher.
Violations
1 unresolved37 health-based violations since 2016, most recently Apr 2025. 8 required an urgent public notice within 24 hours (the kind behind boil-water notices), most recently Jul 2022. What to do if you get a notice.
What you can do

PFAS (“forever chemicals”)

EPA UCMR 5: 3 entry points tested Feb 2025 to Nov 2025. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.

ContaminantHighest averageHighest resultLimitStatus
PFOA
Not detected
Limit 4 ppt
––4 pptNot detected
PFOS
Not detected
Limit 4 ppt
––4 pptNot detected
PFHxS
Not detected
Limit 10 ppt
––10 pptNot detected
PFNA
Not detected
Limit 10 ppt
––10 pptNot detected
HFPO-DA (GenX)
Not detected
Limit 10 ppt
––10 pptNot detected
Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit)
Not detected
Limit 1
––1Not detected
PFBS
Not detected
Guideline 2,000 ppt
––2,000 ppt guidelineNot detected
PFBA
Not detected
Guideline 6,000 ppt
––6,000 ppt guidelineNot detected
PFHxA
Not detected
Guideline 3,000 ppt
––3,000 ppt guidelineNot detected

29 PFAS tested, 0 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.

Lithium

Not detected in 12 samples (reporting limit 9 ppb). About lithium.

Lead and copper

Latest 90th percentile: 3.2 ppb lead (Jan 2026 – Jun 2026). Below action level

Highest since 2016: 16.4 ppb (Dec 2016).

Monitoring periodLead (90th pct.)
Jan 2026 – Jun 20263.2 ppb
Jul 2025 – Dec 20254.1 ppb
Jan 2025 – Jun 20254.5 ppb
Earlier results (9)
Jul 2024 – Dec 20245.2 ppb
Jan 2024 – Jun 20247.4 ppb
Jul 2023 – Dec 20239.5 ppb
Jan 2023 – Jun 20235.8 ppb
Jul 2022 – Dec 20226 ppb
Jan 2022 – Jun 20224.2 ppb
Jul 2021 – Dec 202110.7 ppb
Jan 2021 – Jun 20216 ppb
Jul 2020 – Dec 20204.6 ppb

Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.

Violations

37
Health-based since 2016
2
Monitoring/reporting since 2016
1
Health-based unresolved now
101
Total ever recorded, incl. paperwork
WhenWhat happenedStatus
Jul 2024 – Apr 2025
4 times
The running annual average for TTHM was above the legal limit.
EPA record: TTHM · Maximum Contaminant Level Violation, Average · measured 0.09 mg/l (limit 0.080 mg/L)
Resolved
Resolved
Oct 2020 – Apr 2025
5 times
The running annual average for Total Haloacetic Acids (HAA5) was above the legal limit.
EPA record: Total Haloacetic Acids (HAA5) · Maximum Contaminant Level Violation, Average · measured 0.069 mg/l (limit 0.060 mg/L)
Resolved
Resolved
Jan 2018 – Jul 2024
14 times
The water chemistry that keeps lead from dissolving out of pipes was outside the range the state set.
EPA record: Lead and Copper Rule · WQP Entry Point/Tap Treatment Technique Non-Compliance (limit TT )
Resolved
Resolved
Jul 2022The water was cloudier than allowed at least once. Cloudiness can shield germs from disinfection.
Urgent public notice required What that means
EPA record: Interim Enhanced Surface Water Treatment Rule · Single Turbidity Exceed (Enhanced SWTR) (limit )
Archived
Archived
Jan 2020 – Jun 2022
4 times
The water was cloudier than allowed at least once. Cloudiness can shield germs from disinfection.
Urgent public notice required What that means
EPA record: Interim Enhanced Surface Water Treatment Rule · Single Turbidity Exceed (Enhanced SWTR) · measured 7.5 ntu (limit )
Resolved
Resolved
Mar 2020 – Nov 2021
4 times
A required step to remove or kill germs (filtration, disinfection or fixing a contaminated well) was not done properly.
EPA record: Long Term 2 Enhanced Surface Water Treatment Rule · Treatment Technique (SWTR and GWR) (limit )
Resolved
Resolved
Jan 2020 – Mar 2021
3 times
The water was too cloudy too often in a month. Cloudiness can shield germs from disinfection.
Urgent public notice required What that means
EPA record: Interim Enhanced Surface Water Treatment Rule · Monthly Turbidity Exceed (Enhanced SWTR) (limit )
Resolved
Resolved
Jan 2020The system did not install the treatment required to keep lead and copper from dissolving out of pipes.
EPA record: Lead and Copper Rule · OCCT/SOWT Treatment Installation/Demonstration (limit TT )
Unaddressed
Unaddressed
Jan 2016The water chemistry that keeps lead from dissolving out of pipes was outside the range the state set.
EPA record: Lead and Copper Rule · WQP Entry Point/Tap Treatment Technique Non-Compliance (limit TT )
Archived
Archived

Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.

Earlier EPA testing (2013–2020)

ContaminantHighestGuidelineDetectedTested
Manganese74.3 ppb300 ppb12 of 31UCMR 4 (2019)
Chromium-60.21 ppb–10 of 16UCMR 3 (2014)
Strontium0.06 ppm1.5 ppm16 of 16UCMR 3 (2014)
Vanadium0.95 ppb21 ppb7 of 16UCMR 3 (2014)
Chlorate111 ppb210 ppb4 of 16UCMR 3 (2014)

Where it serves

Jackson

ZIP codes the system reported serving: 39154, 39157, 39170, 39201, 39202, 39203, 39204, 39205, 39206, 39207, 39209, 39210, 39211, 39212, 39213, 39215, 39216, 39217, 39272

Nearby utilities

Questions

Is Jackson tap water safe to drink?

Most of Jackson gets its water from City of Jackson. City of Jackson has 1 unresolved health-based violation on record. EPA testing found no PFAS above the federal limits. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.

Does Jackson water have PFAS?

EPA tested City of Jackson for 29 PFAS between Feb 2025 and Nov 2025 and none were detected above the reporting limits (about 2 to 20 ppt depending on the chemical).

What is the lead level in Jackson water?

The most recent 90th-percentile lead result for City of Jackson is 3.2 ppb, for the period ending Jun 2026. The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.

Check these numbers yourself

Every figure on this page comes from public EPA records. You don't have to take our word for it:

Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.