Community Water System · PWS TX1990012
R C H WSC
Operator location Rockwall, Texas - larger served population (> 3,309) at 7,863 people served; 52 SDWIS violations on record from surface water sources.
- 7,863
- People served (this PWS)
- 52
- EPA violations (this PWS)
- 4
- Health-based (this PWS)
- 4 PFAS
- UCMR5 (this PWS)
R C H WSC standing, mid SDWIS violation third
7,863 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 8% is middle-third health share (≤ 23%). UCMR5: middle-third PFAS panel (≤ 4 compounds). Population rank #5,681 of 29,740 among systems serving 500+.
The verdict
R C H WSC lands in the middle third by violation volume (52), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (7,863; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 8% (middle-third health share (≤ 23%)). UCMR5 detected 4 PFAS compounds (middle-third PFAS panel (≤ 4 compounds)).
- #5,681 of 29,740
- Population · /systems
- #522 of 3,040
- Population · TX
- 52
- Total EPA violations on record
- 8%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,621
- County
- Rockwall
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 21
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 8 | 2023 |
| Public Notice | Other | 8 | 2025 |
| Chlorine | MR | 8 | 2017 |
| Consumer Confidence Rule | Other | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| Lead and Copper Rule | MR | 3 | 2024 |
| Coliform (TCR) | MR | 2 | 1991 |
Violation Count vs. the National Corpus
R C H WSC has 52 recorded EPA violations, 57% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 42% carry more. 8% of this system's own violations are health-based (4 of 52), and it ranks #5,681 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)
52 Around the middle fewer violations than 42% 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. 12 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| ADONA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 6/21/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 6/21/2023 | 4.20 ppt | 3.00 ppt | Detected |
| PFDoA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| HFPO-DA | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFEESA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 6/21/2023 | 3.30 ppt | 3.00 ppt | Detected |
| PFNA | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/21/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| NFDHA | 6/21/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFMBA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 6/21/2023 | 4.60 ppt | 3.00 ppt | Detected |
| PFMPA | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 6/21/2023 | 4.60 ppt | 3.00 ppt | Detected |
| PFDoA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 6/21/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMBA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFNA | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 6/21/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFOA | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 6/21/2023 | 3.20 ppt | 3.00 ppt | Detected |
| NMeFOSAA | 6/21/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 6/21/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 6/21/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFOS | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeS | 6/21/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 6/21/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 6/21/2023 | 4.40 ppt | 3.00 ppt | Detected |
| 11Cl-PF3OUdS | 6/21/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/21/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
Population served record for R C H WSC
EPA SDWIS lists 7,863 people served and 2,621 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
52 violations · 7,863 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 similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with R C H 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.