Community Water System · PWS TX1740006
Melrose WSC
Operator location Nacogdoches, Texas - larger served population (> 3,309) at 4,767 people served; 430 SDWIS violations on record from groundwater sources.
- 4,767
- People served (this PWS)
- 430
- EPA violations (this PWS)
- 7
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Melrose WSC standing, high SDWIS violation third
4,767 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%). Population rank #7,966 of 29,740 among systems serving 500+.
The verdict
Melrose WSC sits in the upper third of the sitemap cohort by violation count (430), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (4,767; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #7,966 of 29,740
- Population · /systems
- #883 of 3,040
- Population · TX
- 430
- Total EPA violations on record
- 2%
- 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
- Local
- Connections
- 1,499
- County
- Nacogdoches
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 370
- Treatment Tech Violations
- 7
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 23 | 2015 |
| Lead and Copper Rule | MR | 23 | 2023 |
| Public Notice | Other | 18 | 2025 |
| E. COLI | MR | 16 | 2017 |
| Revised Total Coliform Rule | MON | 16 | 2019 |
| Consumer Confidence Rule | Other | 16 | 2022 |
| Nitrate | MR | 15 | 2009 |
| Endrin | MR | 15 | 2008 |
| BHC-GAMMA | MR | 15 | 2008 |
| Toxaphene | MR | 15 | 2008 |
| Di(2-ethylhexyl) adipate | MR | 15 | 2008 |
| Simazine | MR | 15 | 2008 |
| Di(2-ethylhexyl) phthalate | MR | 15 | 2008 |
| Hexachlorocyclopentadiene | MR | 15 | 2008 |
| Atrazine | MR | 15 | 2008 |
| LASSO | MR | 15 | 2008 |
| Heptachlor epoxide | MR | 15 | 2008 |
| HEXACHLOROBENZENE | MR | 15 | 2008 |
| Heptachlor | MR | 15 | 2008 |
| Benzo(a)pyrene | MR | 15 | 2008 |
| Methoxychlor | MR | 15 | 2008 |
| Chlordane | MR | 15 | 2008 |
| Pentachlorophenol | MR | 15 | 2008 |
| Coliform (TCR) | MR | 7 | 2015 |
| Groundwater Rule | TT | 4 | 2019 |
| Arsenic | MR | 3 | 2008 |
| Barium | MR | 3 | 2008 |
| Cadmium | MR | 3 | 2008 |
| Chromium | MR | 3 | 2008 |
| Fluoride | MR | 3 | 2008 |
Violation Count vs. the National Corpus
Melrose WSC has 430 recorded EPA violations, 94% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 6% carry more. 2% of this system's own violations are health-based (7 of 430), and it ranks #7,966 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)
430 Higher than most more violations than 94% 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
Population served record for Melrose WSC
EPA SDWIS lists 4,767 people served and 1,499 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
430 violations · 4,767 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Melrose WSC
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Texas compares on the same EPA violation measures. Texas 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.