Community Water System · PWS LA1103013
Magnolia-Eden Isles
Des Peres, Louisiana 63131 - drinking water served from groundwater sources to 10,155 people, tracked in EPA SDWIS and UCMR5.
- 10,155
- People served
- 28
- EPA violations
- 9
- Health-based
- No PFAS
- UCMR5 result
The verdict
EPA records 28 drinking-water violations at Magnolia-Eden Isles, 32% of them health-based - below the Louisiana per-system average.
- 28
- Total EPA violations on record
- 32%
- Health-based (MCL / treatment failure)
- 10,155
- People served by this system
- 0
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: Magnolia-Eden Isles
Magnolia-Eden Isles is a private-owned community water system that delivers drinking water to 10,155 residents in Des Peres, Louisiana (St. Tammany Parish County) through 3,558 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 28 total violations for this system , of which 9 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 16 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.
The most frequently cited contaminant at this system is Coliform (TCR), recorded in 9 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.
Across Louisiana, EPA tracks 1,234 public water systems serving 5,316,532 people, with 115,060 cumulative violations and 62,164 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 93.2 violations. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%).
Magnolia-Eden Isles's 28 violations sit below the Louisiana average.
All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 3,558
- County
- St. Tammany Parish
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 16
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 9 | 2007 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2013 |
| TTHM | MR | 8 | 2013 |
| Consumer Confidence Rule | Other | 1 | 1999 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFDA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 3/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 3/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 3/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 3/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 9Cl-PF3ONS | 3/28/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFDoA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 3/28/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 3/28/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 3/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 3/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NFDHA | 3/28/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 3/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 3/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 3/28/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 3/28/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 3/1/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTA | 3/1/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| NEtFOSAA | 3/1/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 3/1/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFDoA | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 10/30/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 10/30/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFBS | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 10/30/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 10/30/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 10/30/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpA | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 10/30/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 10/30/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBA | 10/30/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 10/30/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 10/30/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 10/30/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 10/30/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 10/30/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Magnolia-Eden Isles.
EPA SDWIS, Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID LA1103013 on SDWISSource: EPA SDWIS Federal Reports Search
Louisiana Drinking Water Authority
Louisiana's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.
Find LA regulator via EPA SDWISViolation Timeline
Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.
| Year (latest) | Contaminant | Category | Count | EPA Record |
|---|---|---|---|---|
| 2013 | Total Haloacetic Acids (HAA5) | MR | 8 | SDWIS / LA1103013 / 2456 |
| 2013 | TTHM | MR | 8 | SDWIS / LA1103013 / 2950 |
| 2007 | Coliform (TCR) | MCL | 9 | SDWIS / LA1103013 / 3100 |
| 1999 | Consumer Confidence Rule | Other | 1 | SDWIS / LA1103013 / 7000 |
How Magnolia-Eden Isles Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | Magnolia-Eden Isles | Louisiana avg | Federal benchmark |
|---|---|---|---|
| Total violations | 28 | 93.2 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 9 | 50.4 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 82.3% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 10,155 | 4,308 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,234 regulated public water systems in Louisiana.
Federal MCL reference, Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026) |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
Is Magnolia-Eden Isles water safe to drink? ▼
How many people does Magnolia-Eden Isles serve? ▼
What type of violations does Magnolia-Eden Isles have? ▼
Has PFAS been detected in Magnolia-Eden Isles water? ▼
What water source does Magnolia-Eden Isles use? ▼
Where does this data come from? ▼
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.