MAGNOLIA-JACKSON SQUARE
PWSID: LA1055101 · Des Peres, MO · Serves 825 people
According to EPA Safe Drinking Water Information System (SDWIS), MAGNOLIA-JACKSON SQUARE (PWSID LA1055101) in Des Peres, MO is listed as a CWS water system covering about 825 people. The same extract lists 18 health-based violation records spanning 2013-2023. Those 18 health-based rows for MAGNOLIA-JACKSON SQUARE cover contaminants such as Chlorine, Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
MAGNOLIA-JACKSON SQUARE has 18 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. 2 distinct EPA contaminant codes appear in this system's record, including Chlorine, Groundwater Rule. Recorded violations span 2013–2023. 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)
- LA1055101
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Des Peres, MO
- Population Served
- 825
- Health Violations
- Yes (18)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Chlorine | 13 | 13 |
| Groundwater Rule | 5 | 5 |
Violation History (18)
| Contaminant | Health | Date |
|---|---|---|
| Groundwater Rule | Yes | May 18, 2023 |
| Chlorine | Yes | Jan 1, 2022 |
| Chlorine | Yes | Jan 1, 2022 |
| Chlorine | Yes | Jan 1, 2022 |
| Chlorine | Yes | Jan 1, 2022 |
| Chlorine | Yes | Oct 1, 2021 |
| Chlorine | Yes | Oct 1, 2021 |
| Chlorine | Yes | Oct 1, 2021 |
| Chlorine | Yes | Oct 1, 2021 |
| Chlorine | Yes | Jul 1, 2021 |
| Chlorine | Yes | Jul 1, 2021 |
| Chlorine | Yes | Jul 1, 2021 |
| Chlorine | Yes | Jul 1, 2021 |
| Chlorine | Yes | Jul 1, 2021 |
| Groundwater Rule | Yes | Nov 8, 2019 |
| Groundwater Rule | Yes | Nov 8, 2019 |
| Groundwater Rule | Yes | Nov 8, 2019 |
| Groundwater Rule | Yes | Jun 28, 2013 |
Frequently Asked Questions
What does EPA SDWIS list for MAGNOLIA-JACKSON SQUARE?
How many people does MAGNOLIA-JACKSON SQUARE serve?
What violations does MAGNOLIA-JACKSON SQUARE have?
What contaminants have been found in MAGNOLIA-JACKSON SQUARE water?
Compare beyond Missouri
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MAGNOLIA-JACKSON SQUARE on cumulative violation count (18) and EPA-reported population served (825). Violation-count peers include Jicarilla Dulce, WHITE SHIELD WATER TREATMENT PLANT, SAND POINT WATER SYSTEM. Population peers include DAVISTON WATER SYSTEM, TOWN OF, IMBODEN WATERWORKS, HUMBOLDT WATER SYSTEM.
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
Explore More
About This Data
MAGNOLIA-JACKSON SQUARE (LA1055101) is drawn from EPA SDWIS. Nearby county systems in this extract include MO AMERICAN ST LOUIS ST CHARLES COUNTIES; KIRKWOOD PWS; JEFFERSON COUNTY PWSD 2; MO AMERICAN MEXICO. Health-based rows (18 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.