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Counties → Pennsylvania

Westmoreland County, Pennsylvania

SDWIS compliance plate

Sheet PA129 · Westmoreland County 82 sys · 12,979 viol · #266/3254

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

  • VIOL-SEVERE 98.8% flagged
  • HEALTH-LOW 4.5% health
  • RANK-TOP #266/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-MID 40.0% detect
  • SRC-GW GW lead 84%
  • SYS-MID 82 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Westmoreland County ranks #266 of 3,254 counties by people served, and #14 of 68 counties in Pennsylvania. See methodology · corpus placement.

Westmoreland County standing, mid-flagged corpus third

Flagged-system rate 98.8% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.5% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 40.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #266 of 3,254 · #14 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Westmoreland County

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

0% 20% 40% 60% 80% 100% Greene · lowest Monroe · near Sullivan · highest 66.7% 98.8% 98.8% 98.9% 98.9% 98.9% 100%

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

Water Systems

System Name Population Violations PFAS
Mawc Sweeney Plant 143,000 71 Clean
New Kensington Muni Auth 47,800 47 Clean
Latrobe Muni Auth 30,000 244 Clean
Highridge Water Auth 16,000 249 Detected
Derry Boro Muni Auth 6,500 330 Detected
Ligonier Twp Muni Auth 3,293 538 -
Mawc Furnace Run 3,100 229 -
Youngstown Boro Muni Auth 2,730 111 -
Excela Westmoreland Hospital 1,500 275 -
Torrance State Hospital 997 701 -
Waterford Waterworks 389 429 -
Bradys Restaurant 300 45 -
Laurel Mtn State Park Ski Area 300 124 -
Meadows Mobile Home Park 250 548 -
Champion Lakes Golf Club 250 107 -
Glassmere Food Mart #251 250 91 -
Mt Pleasant Twp Vfd Club 250 55 -
Laurelville Mennonite Ch Ctr 250 68 -
Madison KOA Campground 250 53 -
Amf Belle Vernon 250 27 -
Murrysville Golf Club 240 27 -
Valley Sch of Ligonier 238 469 -
Ligonier Cc 200 98 -
Andiamo by Rizzos Malibar Inn 200 44 -
Laurel Mountain Christian Camp 200 132 -
Roaring Run Resort 200 81 -
Bush Recreation Area 200 66 -
Mannitto Gc 200 196 -
Lazy Acres Campground 190 109 -
Fox Den Acres Campground 175 81 -
Jills Tastyland 150 61 -
River Forest Inn 150 38 -
Laurel Summit State Park 150 106 -
Composidie Inc 129 711 -
The Hideout 125 86 -
Stanton Hills Community 100 1,293 -
Donut Chef 100 79 -
Shootin Bull Tavern 100 50 -
Rolling Fields Gc 100 40 -
Road Toad 100 132 -
Mirror Lake Campground 100 108 -
Antiochian Village 100 56 -
Pike Run Cc 100 42 -
Sweeties 100 25 -
Bonfire Restaurant 100 65 -
Fairfield Manor MHP 92 681 -
Sun Dial Village MHP 90 729 -
Key Bellevilles Inc 85 486 -
Bells Banquets 75 24 -
Brendas Market & Deli 75 52 -

Compare beyond Pennsylvania

Mid-flagged peers for Westmoreland County

Cross-state counties nearest Westmoreland County on flagged-system share (98.8%) and cumulative violation count (12,979). 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.