Johnson County, Missouri
SDWIS compliance plate
Sheet MO101 · Johnson County 16 sys · 514 viol · #860/3254
VIOL-SEVERE · HEALTH-MID · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 93.8% flagged
- HEALTH-MID 31.7% health
- RANK-UPPER #860/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 88%
- SYS-SMALL 16 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Dent County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Johnson County ranks #860 of 3,254 counties by people served, and #19 of 115 counties in Missouri. See methodology · corpus placement.
Johnson County standing, mid-flagged corpus third
Flagged-system rate 93.8% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 31.7% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #860 of 3,254 · #19 of 115 in Missouri.
Flagged-rate neighbourhood around Johnson County
Lowest/highest poles plus in-state counties nearest Johnson County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| MO American Warrensburg | 18,500 | 10 | Clean |
| Johnson County PWSD 2 | 12,490 | 27 | Clean |
| Whiteman Air Base | 10,106 | 25 | Clean |
| Johnson County PWSD 3 | 4,700 | 15 | Clean |
| Johnson County PWSD 1 | 3,730 | 7 | Clean |
| Knob Noster PWS | 2,863 | 37 | - |
| Holden PWS | 2,683 | 44 | - |
| Pettis/Johnson/Saline PWSD 1 | 1,000 | 116 | - |
| Leeton PWS | 601 | 29 | - |
| Chilhowee PWS | 382 | 32 | - |
| Kingsville PWS | 345 | 37 | - |
| MO American East Warrensburg | 335 | 0 | - |
| Centerview PWS | 272 | 26 | - |
| Knob Noster State Park Shawnee | 160 | 9 | - |
| Country Acres Subd | 130 | 42 | - |
| Confluence Rivers M & M MHP WTP | 100 | 58 | - |
Compare beyond Missouri
Mid-flagged peers for Johnson County
Cross-state counties nearest Johnson County on flagged-system share (93.8%) and cumulative violation count (514). 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.