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Counties → Pennsylvania

Armstrong County, Pennsylvania

SDWIS compliance plate

Sheet PA005 · Armstrong County 42 sys · 4,905 viol · #985/3254

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

  • VIOL-SEVERE 97.6% flagged
  • HEALTH-LOW 10.9% health
  • RANK-UPPER #985/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 79%
  • SYS-MID 42 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Armstrong County ranks #985 of 3,254 counties by people served, and #41 of 68 counties in Pennsylvania. See methodology · corpus placement.

Armstrong County standing, mid-flagged corpus third

Flagged-system rate 97.6% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 10.9% 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 #985 of 3,254 · #41 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Armstrong County

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

0% 20% 40% 60% 80% 100% Greene · lowest Tioga · near Fayette · near Sullivan · highest 66.7% 97.6% 97.6% 97.6% 97.6% 97.7% 100%

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

Water Systems

System Name Population Violations PFAS
Kittanning Suburb Jt Water Aut 8,000 291 Clean
Manor Twp Jt Muni Auth 6,744 159 Clean
Buffalo Twp Mun Auth Freeport 5,849 425 Clean
PA American Water Kittanning 4,617 9 Clean
Ford City Muni Water Works 2,991 46 -
Parks Twp Muni Auth 2,049 49 -
West Kittanning Muni Auth 2,000 69 -
E Armstrong Cnty Muni Auth 1,875 106 Clean
Gilpin Twp Muni Auth 1,680 64 -
Worthington West Franklin Jma 1,500 276 -
South Buffalo Twp Muni Auth 1,230 277 -
Cowanshan Yatesboro Numine Sys 1,200 92 -
Rural Valley Water Works 1,000 117 -
Parker Area Water Auth 900 488 -
Mahoning Twp Muni Auth 900 177 -
Dayton Muni Water Dept 600 213 -
Kittanning Plumcreek Watr Auth 600 32 -
Rayburn Twp Joint Muni Auth 460 35 -
Templeton Water Co 451 386 -
Sugar Creek Resthome 323 137 -
Cowanshannock M a Sagamore Sys 300 283 -
Wheel in Campground 200 12 -
Bear Ridge Campground 200 154 -
Skymeadow Program Ctr 200 72 -
Shannock Valley VFW 200 43 -
Silver Canoe Campground 150 60 -
Widnoon Corner Store 150 27 -
Widnoon Soft Serve 100 72 -
Purples Saloon 100 11 -
Novotnys Country Baked Pizza 100 32 -
Birdsfoot Golf Course 100 20 -
381 Barn 100 66 -
Dob-Bros Country Kitchen 100 21 -
Putneyville Store 100 63 -
Foxs Pizza 100 73 -
Cowanshannock MA-Margaret Sys 95 77 -
Black Bull Saloon 85 62 -
Mahoning Creek Lake 75 84 -
Milton Loop Campground 50 162 -
Snax Food N Gas Dayton 25 24 -
Burrell Twp Vol Fire Dept 25 39 -
Coal Coffee 25 0 -

Compare beyond Pennsylvania

Mid-flagged peers for Armstrong County

Cross-state counties nearest Armstrong County on flagged-system share (97.6%) and cumulative violation count (4,905). 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.