Rockwall County, Texas
SDWIS compliance plate
Sheet TX397 · Rockwall County 7 sys · 284 viol · #519/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 9.9% health
- RANK-TOP #519/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-HIGH 100.0% detect
- SRC-SW SW lead 100%
- SYS-TINY 7 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Collin County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Rockwall County ranks #519 of 3,254 counties by people served, and #42 of 254 counties in Texas. See methodology · corpus placement.
Rockwall County standing, mid-flagged corpus third
Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 9.9% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #519 of 3,254 · #42 of 254 in Texas.
Flagged-rate neighbourhood around Rockwall County
Lowest/highest poles plus in-state counties nearest Rockwall County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| City of Rockwall | 47,251 | 2 | Detected |
| City of Fate | 29,285 | 49 | Detected |
| City of Royse City | 16,400 | 55 | Detected |
| City of Heath | 9,890 | 40 | Detected |
| R C H WSC | 7,863 | 52 | Detected |
| Blackland WSC | 5,217 | 48 | Detected |
| Mount Zion WSC | 2,028 | 38 | - |
Compare beyond Texas
Mid-flagged peers for Rockwall County
Cross-state counties nearest Rockwall County on flagged-system share (100.0%) and cumulative violation count (284). In-state neighbours stay on the compliance plate above.
Similar flagged-system rate
Nearest cross-state counties by % of SDWIS systems with at least one violation on record.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - 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 page draws directly on 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.