PlainWater
Counties → Ohio

County profile · EPA SDWIS + UCMR5

Harrison County, Ohio

30 SDWIS-listed public water systems serve 14,503 people in Harrison County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

30
SDWIS water systems Middle third of counties
2,320
Total violations Middle third of counties
93.3%
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 OH067 · Harrison County 30 sys · 2,320 viol · #2047/3254

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

  • VIOL-SEVERE 93.3% flagged
  • HEALTH-LOW 18.0% health
  • RANK-LOWER #2047/3254
  • PHOTO-FINISH ±0.4 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 87%
  • SYS-SMALL 30 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Tuscarawas County (+ 0.4 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Harrison County ranks #2,047 of 3,254 counties by people served, and #82 of 88 counties in Ohio. See methodology · corpus placement.

Harrison County standing, mid-flagged corpus third

Flagged-system rate 93.3% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 18.0% 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 #2,047 of 3,254 · #82 of 88 in Ohio.

Flagged-rate neighbourhood around Harrison County

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

0% 20% 40% 60% 80% 100% Fayette · lowest Knox · near Harrison · this county Vinton · highest 78.6% 92.6% 92.9% 92.9% 93.3% 93.8% 100%

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

Water Systems

System Name Population Violations PFAS
Cadiz Village PWS 3,353 282 Clean
Tri-County Water Authority 2,370 17 -
Mwcd-Tappan Lake Park 2,012 63 -
Hopedale Village PWS 984 40 -
Scio PWS 763 448 -
Jewett Village 650 108 -
New Athens PWS 595 71 -
Bowerston Village PWS 483 29 -
Freeport Village PWS 400 103 -
Hcwsd-Unionvale-Kenwood 257 81 -
Mwcd-Clendening Marina 251 3 -
Harrison County W&S Dist-Georgetown 242 30 -
Mwcd-Clendening Campground 200 49 -
Mwcd-Tappan Marina T-1 200 3 -
Camp Tippecanoe East West Village PWS 197 17 -
Hcwsd - East Cadiz 191 2 -
Hcwsd-Piedmont PWS 178 269 -
Fort Steuben Scout Reservation 175 187 -
Hcwsd - Germano Water and Sewer 169 43 -
Twin Hills Campground and Resort 150 39 -
Harrison Hills Pentecostal Church 125 28 -
Clays Drive IN 100 57 -
Leesville Land LLC 99 0 -
Deersville Village PWS 82 225 -
Hcwsd-Crimm Road PWS 70 7 -
New Rumley Methodist Church PWS 50 26 -
Hillbilly Hideaway Camp 50 15 -
Vail Mine PWS 48 0 -
Harrison County Home 34 16 -
Asbury Chapel 25 62 -

Compare beyond Ohio

Mid-flagged peers for Harrison County

Cross-state counties nearest Harrison County on flagged-system share (93.3%) and cumulative violation count (2,320). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.