Public water system record
City of Jackson
Serves Jackson and Byram, Hinds County, MS · 189,673 people served
Federal records show 36 health-based violations and 2 monitoring/reporting issues for City of Jackson in the last ten years, including an unresolved Lead and Copper Rule violation.
System profile
- Health-based violations, last 10 years
- 36
- Resolved
- 27
- Unresolved
- 1
- Archived by EPA
- 8
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 2
Key facts
- City of Jackson draws water from 2 surface water intakes.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.115 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2024.
- Most recent enforcement action: boil water order by Mississippi, December 1998.
- Record on file since 1981, with 14 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 22,800 unknown out of 63,066 service lines.
Check whether City of Jackson serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.115 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
220 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2024 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2024 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2023 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2023 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2022 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jun 1, 2022 | Resolved | Yes |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2022 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Nov 1, 2021 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2021 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2021 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2021 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2021 | Resolved | Yes |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2021 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2021 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2020 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2020 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | May 1, 2020 | Resolved | No |
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2020 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2020 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2020 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2020 | Resolved | Yes |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2020 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2020 | Active | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2019 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2019 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2018 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jan 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2021 | Resolved |
Full record since 1981
EPA's records for City of Jackson go back to 1981. Before October 19, 2016 they list 14 health-based violations (3 resolved, 11 archived by EPA without a recorded fix) and 48 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 8 | 0 |
| 1990s | 1 | 0 |
| 2000s | 4 | 47 |
| 2010 to October 18, 2016 | 1 | 1 |
| October 19, 2016 to 2019 | 4 | 0 |
| 2020s | 32 | 2 |
Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began January 2016, Archived.
Show all 14 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2016 | Archived |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Apr 1, 2005 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 2001 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 2001 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1993 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jul 1, 1983 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 1983 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 1983 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 1982 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jul 1, 1982 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 1982 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 1982 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 1981 | Archived |
Enforcement actions
Mississippi regulators took 1 formal enforcement action against City of Jackson and issued 3 boil water orders between 1981 and 1998. The most recent was a boil water order in December 1998.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 20, 1998 | Mississippi | Boil water order | 1 violation |
| Jul 30, 1997 | Mississippi | Boil water order | 1 violation |
| Jan 2, 1997 | Mississippi | Boil water order | 1 violation |
| Nov 29, 1981 | Mississippi | Compliance order (no penalty) | 3 violations (3 health-based): Total Trihalomethanes (TTHMs) |
What the violations mean
Lead and Copper Rule
15 incidentsThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Interim Enhanced Surface Water Treatment Rule
8 incidentsThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Haloacetic Acids (HAA5)
5 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Total Trihalomethanes (TTHMs)
4 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Long Term 2 Enhanced Surface Water Treatment Rule
4 incidentsThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Where the water comes from
City of Jackson draws water from 2 surface water intakes.
Annual water quality report
City of Jackson must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Mississippi.
Certified drinking water labs by state EPA guidance for private wells