Community Water System · PWS TX0160001
City of Johnson City
Operator location Johnson City, Texas - 0% of 101 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 2,097 served per SDWIS.
- 2,097
- People served (this PWS)
- 101
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
City of Johnson City standing, high SDWIS violation third
0% of 101 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). Population rank #13,218 of 29,740 among systems serving 500+.
The verdict
City of Johnson City sits in the upper third of the sitemap cohort by violation count (101), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,097 (mid served population (≤ 3,309)). Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.
- #13,218 of 29,740
- Population · /systems
- #1,624 of 3,040
- Population · TX
- 101
- Total EPA violations on record
- 0%
- 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
- 874
- County
- Blanco
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 83
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 41 | 2021 |
| Revised Total Coliform Rule | MON | 15 | 2023 |
| Public Notice | Other | 14 | 2024 |
| Lead and Copper Rule | MR | 14 | 2024 |
| Coliform (TCR) | MR | 9 | 2010 |
| CYANIDE | MR | 4 | 2015 |
| Consumer Confidence Rule | Other | 4 | 2021 |
Violation Count vs. the National Corpus
City of Johnson City has 101 recorded EPA violations, 73% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 26% carry more. 0% of this system's own violations are health-based (0 of 101), and it ranks #13,218 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)
101 Around the middle fewer violations than 26% 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
Health-based violations on City of Johnson City
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for TX0160001.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
101 violations · 2,097 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with City of Johnson City
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.