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Counties → Ohio

Williams County, Ohio

SDWIS compliance plate

Sheet OH171 · Williams County 43 sys · 2,744 viol · #1486/3254

VIOL-SEVERE · HEALTH-LOW · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 95.3% flagged
  • HEALTH-LOW 12.6% health
  • RANK-MID #1486/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 43 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Seneca County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Williams County ranks #1,486 of 3,254 counties by people served, and #69 of 88 counties in Ohio. See methodology · corpus placement.

Williams County standing, mid-flagged corpus third

Flagged-system rate 95.3% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.6% is health-based share in the middle 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 #1,486 of 3,254 · #69 of 88 in Ohio.

Flagged-rate neighbourhood around Williams County

Lowest/highest poles plus in-state counties nearest Williams County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Fayette · lowest Warren · near Seneca · near Vinton · highest 78.6% 94.9% 95.2% 95.3% 95.3% 95.7% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Bryan City 8,729 11 Clean
Montpelier Village 4,280 30 Clean
Edgerton Village 1,881 127 -
West Unity Village 1,760 30 -
Pioneer Village 1,380 70 -
Stryker Village 1,335 23 -
Northwest Water District 1,100 22 -
New Hope Community Church-Bryan 900 17 -
Edon Village 783 418 -
Aqua Ohio - Seneca 750 45 -
Aqua Ohio - Norlick 345 218 -
Cattle Creek Winery 320 34 -
Bryan Fuel Stop 240 17 -
Trufast Organization 230 67 -
Williams Co/Hillside Country Living 225 63 -
Rivers Edge Campground and Resort 208 31 -
Ken Dale Farms Wedding & Event Venue 200 4 -
Oakwood MHP 180 40 -
Pulaski Head Start 150 204 -
Camp Diclair 150 11 -
Lockport Mennonite Church 150 37 -
Manufactured Housing Enterprise 150 258 -
Hidden Valley Campground-Archbold 126 3 -
Pioneer Scout Reserve [Bsa]-Camp 106 12 -
Loveberrys Funny Farm Campground 106 76 -
D and L Town and Country 100 4 -
New Life Worship Center- Bryan 90 14 -
River of Life Worship Center 81 105 -
Pleasant Ridge Dunkard Breth Ch 75 30 -
Patriot Hills Golf Course 70 16 -
Bridgewater Community Church 65 22 -
Suburban Golf Club 60 30 -
Anderson Vreeland 55 115 -
Sams Place Tavern 53 6 -
North Pine Estates 50 234 -
Northland Senior Community 50 81 -
Victory Barn Church 50 21 -
Pulaski United Methodist Ch-Bryan 40 32 -
Williams County Engineer Office 33 127 -
M and D Suburban Inn 32 0 -
West Bethesda Presbyterian Church 30 0 -
Otc-Kunkle Maintenance Building 27 6 -
Southern Shores Campground 25 33 -

Compare beyond Ohio

Mid-flagged peers for Williams County

Cross-state counties nearest Williams County on flagged-system share (95.3%) and cumulative violation count (2,744). 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.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

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.