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Counties → Pennsylvania

Franklin County, Pennsylvania

SDWIS compliance plate

Sheet PA055 · Franklin County 122 sys · 18,681 viol · #454/3254

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

  • VIOL-SEVERE 99.2% flagged
  • HEALTH-LOW 5.1% health
  • RANK-TOP #454/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-LOW 12.5% detect
  • SRC-GW GW lead 91%
  • SYS-LARGE 122 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Lycoming County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Franklin County ranks #454 of 3,254 counties by people served, and #24 of 68 counties in Pennsylvania. See methodology · corpus placement.

Franklin County standing, mid-flagged corpus third

Flagged-system rate 99.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.1% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 12.5% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #454 of 3,254 · #24 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Franklin County

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

0% 20% 40% 60% 80% 100% Greene · lowest Bedford · near Lycoming · near Sullivan · highest 66.7% 98.9% 99% 99.2% 99.3% 99.3% 100%

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

Water Systems

System Name Population Violations PFAS
Chambersburg Boro Water Sys 31,048 170 Clean
Guilford Water Auth 28,135 669 Clean
Boro of Waynesboro 13,200 477 Clean
Bear Valley Joint Auth 12,589 254 Detected
Washington Twp Muni Auth 6,134 669 Clean
Greencastle Area Water Auth 5,500 263 Clean
Franklin System York Water 4,400 442 Clean
Caledonia St Park 2,600 701 -
Mercersburg Muni Water Auth 2,350 365 -
Grove Worldwide US LLC 1,800 277 -
Mont Alto Municipal Authority 1,705 680 -
James Buchanan Middle/High Sch 1,450 81 -
PA State Univ Mont Alto Campus 1,300 191 -
Zullinger Water System Wtma 1,080 131 -
Saunderosa Park 999 31 -
Antrim Township Municipal Auth 975 217 -
South Mountain Restoration Ctr 950 1,199 -
Whitetail Ski Resort 912 431 -
Five Forks Brethren in Christ 900 4 -
Lakeview Motel & Restaurant 800 44 -
Mowrey Elem Sch 695 707 -
Fannett Metal Sch Dist 600 258 Clean
Antrim Bic Church 550 36 -
Quincy Twp Water System 530 126 -
Rutters Farm Store 78 500 46 -
Edenville Water Assn Inc 491 159 -
Quincy Village System 450 190 -
Quincy Mini Mart 450 154 -
Klines Grocery 400 23 -
Ishas Mart 2 400 42 -
Luigis Pizza Factory 400 25 -
Solomons Evangelical Luth Ch 400 14 -
Mount Rock Manor 350 260 -
Kauffman Community Center 350 47 -
Montgomery Elem School 300 71 -
Pauls Country Mkt 300 15 -
Dry Run Water Assn 278 567 -
Mercersburg Sportsman Assn 275 109 -
Camp Tohiglo 260 45 -
Mrs Gibble Restaurant 240 206 -
Lenwood Park 230 529 -
Hollowell Brethren in Christ 230 45 -
Greencastle Ch of God 220 21 -
Suez Water Kensington System 204 289 -
Cedar Grove Mennonite Church 200 44 -
Quincy Gym 200 17 -
South Mountain Bible Ch 200 32 -
Rhodes Grove Camp 200 17 -
Holiday Inn Express 200 445 -
Molly Pitcher Mini Mall 200 55 -

Compare beyond Pennsylvania

Mid-flagged peers for Franklin County

Cross-state counties nearest Franklin County on flagged-system share (99.2%) and cumulative violation count (18,681). 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.