Community Water System · PWS LA1047008
Gillis Long Center
Operator location Carville, Louisiana - smaller served population (≤ 999) at 600 people served; 22 SDWIS violations on record from groundwater sources.
- 600
- People served (this PWS)
- 22
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Gillis Long Center standing, mid SDWIS violation third
600 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 9% is middle-third health share (≤ 23%). UCMR5: UCMR5 tested, none detected. Population rank #26,234 of 29,740 among systems serving 500+.
The verdict
Gillis Long Center lands in the middle third by violation volume (22), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (600; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 9% (middle-third health share (≤ 23%)). UCMR5 tested this system and reported no PFAS above the minimum reporting level.
- #26,234 of 29,740
- Population · /systems
- #647 of 707
- Population · LA
- 22
- Total EPA violations on record
- 9%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 150
- County
- Iberville Parish
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 17
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 5 | 2003 |
| TTHM | MR | 4 | 2013 |
| Lead and Copper Rule | MR | 4 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2013 |
| Lead and Copper Rule | TT | 2 | 2023 |
| Consumer Confidence Rule | Other | 1 | 2000 |
Violation Count vs. the National Corpus
Gillis Long Center has 22 recorded EPA violations, 34% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 65% carry more. 9% of this system's own violations are health-based (2 of 22), and it ranks #26,234 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
22 Lower than most fewer violations than 65% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 33 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NEtFOSAA | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 12/13/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTrDA | 12/13/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 12/13/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFDA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 12/13/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 12/13/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFBS | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 12/13/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTA | 12/13/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| HFPO-DA | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 12/13/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 12/13/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpS | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 12/13/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBA | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOA | 12/13/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 12/13/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 12/13/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 12/13/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 12/13/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 12/13/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
Population served record for Gillis Long Center
EPA SDWIS lists 600 people served and 150 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
22 violations · 600 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Gillis Long Center
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Louisiana compares on the same EPA violation measures. Louisiana systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.