Warren County, Missouri
SDWIS compliance plate
Sheet MO219 · Warren County 27 sys · 1,083 viol · #1756/3254
VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 85.2% flagged
- HEALTH-MID 31.4% health
- RANK-MID #1756/3254
- PHOTO-FINISH ±0.2 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 100%
- SYS-SMALL 27 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Dade County ( -0.2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Warren County ranks #1,756 of 3,254 counties by people served, and #45 of 115 counties in Missouri. See methodology · corpus placement.
Warren County standing, lower-flagged corpus third
Flagged-system rate 85.2% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 31.4% 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 #1,756 of 3,254 · #45 of 115 in Missouri.
Flagged-rate neighbourhood around Warren County
Lowest/highest poles plus in-state counties nearest Warren County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Warrenton PWS | 8,208 | 96 | Clean |
| St Charles Co PWSD #2 Wright City | 3,550 | 83 | Clean |
| Marthasville PWS | 1,200 | 71 | - |
| St Charles County PWSD 2 Warren | 1,192 | 17 | - |
| Lake Sherwood Subd | 1,100 | 43 | - |
| American Foods Group | 1,100 | 0 | - |
| Truesdale PWS | 853 | 18 | - |
| Innsbrook | 810 | 9 | - |
| St Charles County PWSD 2 North Oak Dr | 660 | 9 | - |
| St Charles County PWSD 2 Dutzow | 400 | 26 | - |
| Dogwood Lake Campground | 200 | 37 | - |
| Pleasant Oak MHP | 150 | 55 | - |
| Maple Ridge MHP | 140 | 35 | - |
| Glenbrook Estates | 100 | 53 | - |
| Treloar Bar and Grill | 75 | 0 | - |
| Cedar Grove Village Subd | 60 | 89 | - |
| St Ignatius Loyola School | 60 | 111 | - |
| Country Cove | 52 | 100 | - |
| Cedar Lake Cellars | 50 | 108 | - |
| Temco | 50 | 2 | - |
| Valley Lake Estates | 40 | 71 | - |
| Warco Mfg Co | 32 | 31 | - |
| Great Oak Subdivision | 30 | 5 | - |
| Lake Creek Farm Winery | 25 | 4 | - |
| Garage Bar | 25 | 0 | - |
| Washington Airport | 25 | 10 | - |
| Dollar General #24942 Innsbrook | 25 | 0 | - |
Compare beyond Missouri
Lower-flagged peers for Warren County
Cross-state counties nearest Warren County on flagged-system share (85.2%) and cumulative violation count (1,083). 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.