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Counties → Ohio

Greene County, Ohio

SDWIS compliance plate

Sheet OH057 · Greene County 56 sys · 3,157 viol · #364/3254

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

  • VIOL-SEVERE 96.4% flagged
  • HEALTH-MID 21.0% health
  • RANK-TOP #364/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-MID 40.0% detect
  • SRC-GW GW lead 95%
  • SYS-MID 56 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Licking County (+ 0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Greene County ranks #364 of 3,254 counties by people served, and #15 of 88 counties in Ohio. See methodology · corpus placement.

Greene County standing, mid-flagged corpus third

Flagged-system rate 96.4% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 21.0% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 40.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #364 of 3,254 · #15 of 88 in Ohio.

Flagged-rate neighbourhood around Greene County

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

0% 20% 40% 60% 80% 100% Fayette · lowest Greene · this county Preble · near Vinton · highest 78.6% 95.7% 96.4% 96.6% 96.7% 96.7% 100%

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

Water Systems

System Name Population Violations PFAS
Greene Co.-Northwest Reg Water 41,000 61 Clean
Fairborn Public Water System 34,620 27 Clean
Xenia City PWS 29,000 45 Clean
Wright-Patterson Afb Area a PWS 16,551 32 Detected
Wright-Patterson Afb Area B PWS 11,034 34 Detected
Bellbrook Water Works 9,475 37 Detected
Wright State University 8,948 47 Clean
Greene County Eastern Regional PWS 4,800 2 Clean
Cedarville University 4,000 40 Clean
Yellow Springs Village PWS 3,761 9 Detected
Wright Patterson Medical Center PWS 2,401 8 -
Jamestown Village PWS 1,997 33 -
Sports Plex 1,502 10 -
Kettering Health Soin Medical Center 1,035 8 -
Greene County - Clyo PWS 996 4 -
Greene County - Day 895 42 -
Wright Field Child Development Center 888 0 -
Greene Co.-Southwest Reg Water 857 80 -
Greene County - Fairborn 743 3 -
Spring Valley Village 538 76 -
Bowersville Village PWS 360 76 -
Spring Valley Estates MHP 360 183 -
Kil-Kare Inc Track 350 87 -
Shawnee Hills Baptist Church 304 29 -
Woodhaven Swim and Tennis Club, Inc 250 103 -
Camp Birch PWS 240 87 -
Greene Valley Recreation 240 118 -
Kettering Health Greene Memorial 211 8 -
Liberty Worship Center Church of God 190 49 -
Greene County - Kitridge 184 6 -
Grace Covenant Church 180 50 -
Kingdom Hall Jehovahs PWS 160 27 -
4-H Camp Clifton, Inc. 152 168 -
Clifton Mills, Inc. 150 3 -
Jasper Road Food Mart 150 74 -
Huffman Metropark Momba Well PWS 145 27 -
Clifton Gorge Exploration Center 138 0 -
Knollwood Garden Center 120 19 -
Jasper Hills Golf Club 120 31 -
Mount St. John 115 98 -
Grape Grove Church of Christ 90 52 -
Glen Helen Outdoor Education Center 87 12 -
Odnr-John Bryan State Park Campground 85 7 -
Knollwood Tavern 75 49 -
Odnr-John Bryan State Park 2 PWS 75 29 -
Old US 35 Campground 60 59 -
Santa Fe Lounge 50 232 -
Church at Beavercreek 50 32 -
Grace Christian Center 50 164 -
The Savory Skillet 50 150 -

Compare beyond Ohio

Mid-flagged peers for Greene County

Cross-state counties nearest Greene County on flagged-system share (96.4%) and cumulative violation count (3,157). 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.