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Counties → Pennsylvania

Somerset County, Pennsylvania

SDWIS compliance plate

Sheet PA111 · Somerset County 110 sys · 18,586 viol · #758/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 4.0% health
  • RANK-UPPER #758/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-LOW 16.7% detect
  • SRC-GW GW lead 88%
  • SYS-MID 110 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Somerset County ranks #758 of 3,254 counties by people served, and #35 of 68 counties in Pennsylvania. See methodology · corpus placement.

Somerset County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.0% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 16.7% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #758 of 3,254 · #35 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Somerset County

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

0% 20% 40% 60% 80% 100% Greene · lowest Sullivan · highest Delaware · near Clinton · near 66.7% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Windber Area Auth 9,463 141 Clean
Conemaugh Twp Muni Auth 7,800 567 Detected
Somerset Boro Muni Water Auth 6,309 500 Clean
Somerset Twp Muni Auth Oakridg 3,800 118 Clean
Seven Springs Muni Auth 3,000 245 Clean
Boswell Boro Muni Auth 2,900 199 -
Meyersdale Muni Auth 2,566 224 -
Berlin Boro Muni Auth 2,468 40 -
Central City Water Auth 1,984 214 -
Jennerstown Muni Auth 1,625 1,046 -
Somerset Cnty Fair Assn 1,500 95 -
Flight 93 National Memorial 1,500 33 -
Lincoln Twp Muni Auth 1,400 546 -
Somerset Twp M a Friedens 1,374 89 -
Rockwood Boro Muni Auth 1,250 150 Clean
Indian Lake Boro Waterworks 1,246 41 -
Cairnbrook Improvement Assn 910 151 -
Hidden Valley Resort LP 750 196 -
Salisbury Boro Water Comm 725 172 -
Gray Area Watr Auth of Jen Twp 700 489 -
Confluence Boro Muni Auth 645 1,073 -
Hooversville Boro 645 460 -
Jenner Twp Muni Auth 576 126 -
Hickory Hollow Campground 500 43 -
Springs Historical Society 500 136 -
Woodland Campsites 500 128 -
Somerset Twp MA Reading Mines 494 691 -
Shanksville Stonycreek Sch 460 277 -
Turkeyfoot Valley Sch 450 234 -
Garrett Boro Water Sys 449 793 -
Deer Valley YMCA Camp 400 44 -
Summers Best Two Weeks 400 61 -
Jefferson Twp Water and Sewer 350 32 -
Hanks Diner 350 54 -
North Star East Mid Sch 325 373 -
Somerset Estates MHP 300 338 -
Rittenhouse Somerfield Be&cppg 300 61 -
Outdoor Odyssey at Roaring Run 300 182 -
Que Family Rec Area 300 17 -
Summers Best 2 Weeks Que 300 45 -
Addison Area Water Auth 284 337 -
Camp Allegheny 250 36 -
Somerset Twp Mun Auth Listie 218 352 -
Oakhurst Grille&eventscenter 200 105 -
The Alley 200 7 -
Snidas Corner Store 200 91 -
American Legion Post 257 200 22 -
Lost Mtn Campground 200 17 -
Scottyland USA 200 378 -
Camp Harmony Main Camp 200 47 -

Compare beyond Pennsylvania

Mid-flagged peers for Somerset County

Cross-state counties nearest Somerset County on flagged-system share (100.0%) and cumulative violation count (18,586). 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.