County profile · EPA SDWIS + UCMR5
Montgomery County, Missouri
22 SDWIS-listed public water systems serve 11,865 people in Montgomery County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 22
- SDWIS water systems Middle third of counties
- 2,739
- Total violations Upper third of counties
- 95.5%
- SDWIS systems w/ a violation Middle third of counties
- 0.0%
- UCMR5 PFAS rate (1 tested) Lower third of counties with tests
SDWIS compliance plate
Sheet MO139 · Montgomery County 22 sys · 2,739 viol · #2223/3254
VIOL-SEVERE · HEALTH-HIGH · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 95.5% flagged
- HEALTH-HIGH 45.4% health
- RANK-LOWER #2223/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 95%
- SYS-SMALL 22 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Polk County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Montgomery County ranks #2,223 of 3,254 counties by people served, and #69 of 115 counties in Missouri. See methodology · corpus placement.
Montgomery County standing, mid-flagged corpus third
Flagged-system rate 95.5% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 45.4% 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 #2,223 of 3,254 · #69 of 115 in Missouri.
Flagged-rate neighbourhood around Montgomery County
Lowest/highest poles plus in-state counties nearest Montgomery County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Montgomery Co PWSD 1 | 3,850 | 82 | Clean |
| Montgomery City PWS | 2,811 | 40 | - |
| Wellsville PWS | 1,210 | 651 | - |
| New Florence PWS | 769 | 73 | - |
| Jonesburg PWS | 768 | 18 | - |
| Bellflower PWS | 350 | 85 | - |
| Montgomery County PWSD 1 Jonesburg | 300 | 27 | - |
| High Hill PWS | 300 | 24 | - |
| Reds Gas | 200 | 465 | - |
| Graham Cave State Park Campground | 200 | 26 | - |
| J D Streett 170 | 200 | 65 | - |
| Middletown PWS | 167 | 270 | - |
| Rhineland PWS | 150 | 171 | - |
| New Florence Wood Products | 150 | 80 | - |
| Roy L Utilities | 150 | 125 | - |
| Endless Summer Winery | 100 | 0 | - |
| Loutre Shore Country Club | 50 | 355 | - |
| Hickory Ridge Campground | 40 | 63 | - |
| Loutre Market | 30 | 18 | - |
| Graham Cave State Park Office | 25 | 12 | - |
| Lazy Day Campground | 25 | 51 | - |
| Montgomery County PWSD 1 Montgomery City | 20 | 38 | - |
Compare beyond Missouri
Mid-flagged peers for Montgomery County
Cross-state counties nearest Montgomery County on flagged-system share (95.5%) and cumulative violation count (2,739). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.