HANNIBAL PWS
PWSID: MO2010344 · Hannibal, MO · Serves 17,108 people
According to EPA Safe Drinking Water Information System (SDWIS), HANNIBAL PWS (PWSID MO2010344) in Hannibal, MO is listed as a CWS water system covering about 17,108 people. The same extract lists 19 health-based violation records spanning 2011-2023. Those 19 health-based rows for HANNIBAL PWS cover contaminants such as TTHM, Revised Total Coliform Rule, Long Term 2 Enhanced Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
HANNIBAL PWS has 19 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 4 distinct EPA contaminant codes appear in this system's record, including TTHM, Revised Total Coliform Rule, Long Term 2 Enhanced Surface Water Treatment Rule. Recorded violations span 2011–2023. Day-to-day primacy enforcement for this system runs through the Missouri drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Missouri state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- MO2010344
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Hannibal, MO
- Population Served
- 17,108
- Health Violations
- Yes (19)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 14 | 14 |
| Revised Total Coliform Rule | 2 | 2 |
| Long Term 2 Enhanced Surface Water Treatment Rule | 1 | 1 |
| Surface Water Treatment Rule | 1 | 1 |
| EPA contaminant code Unknown (name unavailable in this extract) | 1 | 1 |
Violation History (19)
| Contaminant | Health | Date |
|---|---|---|
| Revised Total Coliform Rule | Yes | Aug 1, 2023 |
| Revised Total Coliform Rule | Yes | Aug 1, 2023 |
| Long Term 2 Enhanced Surface Water Treatment Rule | Yes | Oct 1, 2016 |
| Surface Water Treatment Rule | Yes | May 1, 2016 |
| - | Yes | May 1, 2016 |
| TTHM | Yes | Jul 1, 2015 |
| TTHM | Yes | Apr 1, 2015 |
| TTHM | Yes | Jan 1, 2015 |
| TTHM | Yes | Oct 1, 2014 |
| TTHM | Yes | Jul 1, 2014 |
| TTHM | Yes | Jul 1, 2013 |
| TTHM | Yes | Apr 1, 2013 |
| TTHM | Yes | Jan 1, 2013 |
| TTHM | Yes | Oct 1, 2012 |
| TTHM | Yes | Jul 1, 2012 |
| TTHM | Yes | Apr 1, 2012 |
| TTHM | Yes | Jan 1, 2012 |
| TTHM | Yes | Oct 1, 2011 |
| TTHM | Yes | Jul 1, 2011 |
Frequently Asked Questions
What does EPA SDWIS list for HANNIBAL PWS?
How many people does HANNIBAL PWS serve?
What violations does HANNIBAL PWS have?
What contaminants have been found in HANNIBAL PWS water?
Compare beyond Missouri
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest HANNIBAL PWS on cumulative violation count (19) and EPA-reported population served (17,108). Violation-count peers include GAMBELL WATER SYSTEM, MURFREESBORO WATERWORKS, NORTH HOWARD RURAL WATER ASSOCIATION. Population peers include EASTERN WASHINGTON UNIVERSITY, MORTON, RUSSELLVILLE WATER WORKS AND SEWER BOARD.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
HANNIBAL PWS (MO2010344) is drawn from EPA SDWIS. Nearby county systems in this extract include RALLS COUNTY PWSD 1; MARION COUNTY PWSD 1; PALMYRA PWS; MONROE CITY PWS. Health-based rows (19 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.