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Counties → Pennsylvania

Columbia County, Pennsylvania

SDWIS compliance plate

Sheet PA037 · Columbia County 94 sys · 14,926 viol · #793/3254

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

  • VIOL-SEVERE 98.9% flagged
  • HEALTH-LOW 3.9% health
  • RANK-UPPER #793/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-MID 25.0% detect
  • SRC-GW GW lead 96%
  • SYS-MID 94 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Columbia County ranks #793 of 3,254 counties by people served, and #36 of 68 counties in Pennsylvania. See methodology · corpus placement.

Columbia County standing, mid-flagged corpus third

Flagged-system rate 98.9% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 3.9% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 25.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #793 of 3,254 · #36 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Columbia County

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

0% 20% 40% 60% 80% 100% Greene · lowest Columbia · this county Monroe · near Sullivan · highest 66.7% 98.8% 98.9% 98.9% 98.9% 99% 100%

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

Water Systems

System Name Population Violations PFAS
Veolia Water PA Inc Bloomsburg 29,382 15 Clean
PA American Water Berwick 15,282 32 Detected
Knoebels Grove Park 4,000 1,039 Clean
Southern Columbia Area School 1,650 180 -
Catawissa Municipal Water Auth 1,644 96 -
Benton Municipal Water Auth 1,333 269 -
Aqua PA Mifflin Township 1,220 108 -
Millville Municipal Authority 969 715 Clean
Penndot-Site 37 Modern Rest AR 800 10 -
Penndot-Site 38 Modern Rest AR 800 14 -
Post Consumer Brands 600 197 -
Wise Foods Inc 600 175 -
Orangeville Municipal Water Au 508 82 -
Brookside Village MHP 475 821 -
Veolia Water PA Inc Ccip 419 12 -
Wonderview Water Co 350 175 -
Fishing Creek Campsites 300 24 -
Stony Brook Circle MHP 272 72 -
Columbia Co Christian School 270 33 -
J & D Campground 250 58 -
Benton Foundry Inc 250 101 -
Church of Lds Berwick 225 97 -
Camp Lavigne 150 293 -
Camp Victory 150 113 -
Saw Mill Road Office Bldg 150 40 -
Geisinger Office Building 2 130 252 -
Fire Pit Campground 120 83 -
The Gardens at Orangeville 118 77 -
Beaver Main Elem School 116 118 -
Camping at Deihls LLC 100 40 -
Ideal Park 100 244 -
Mountain View Estates 80 595 -
Lake Glory Campsites 80 52 -
Greenwood Friends School 80 824 -
Bloomsburg Christian School 80 399 -
Creekside Grove Campground 75 16 -
Shady Creek Campground 75 67 -
The Links at Hemlock Creek 75 104 -
Country Terrace Estates 70 246 -
The Stanley Center 70 490 -
Grassmere Park Campground 70 179 -
The Surgery Center 70 1,000 -
Ppl Electric Utilities Corp 70 234 -
Sunset Ridge Rehab Ctr 60 146 -
Country Acres Mobile Home Park 60 254 -
Whispering Pines Camping Est 55 53 -
Camp Epachiseca 50 99 -
Lehet Village 40 94 -
Mandos Italian Pizza 40 91 -
Relax Inn 40 24 -

Compare beyond Pennsylvania

Mid-flagged peers for Columbia County

Cross-state counties nearest Columbia County on flagged-system share (98.9%) and cumulative violation count (14,926). 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.