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Counties → Pennsylvania

Northumberland County, Pennsylvania

SDWIS compliance plate

Sheet PA097 · Northumberland County 66 sys · 9,157 viol · #606/3254

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

  • VIOL-SEVERE 97.0% flagged
  • HEALTH-LOW 4.7% health
  • RANK-TOP #606/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 89%
  • SYS-MID 66 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Northumberland County ranks #606 of 3,254 counties by people served, and #29 of 68 counties in Pennsylvania. See methodology · corpus placement.

Northumberland County standing, mid-flagged corpus third

Flagged-system rate 97.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.7% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #606 of 3,254 · #29 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Northumberland County

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

0% 20% 40% 60% 80% 100% Greene · lowest Wyoming · near Sullivan · highest 66.7% 96.7% 96.7% 96.9% 97% 97% 100%

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

Water Systems

System Name Population Violations PFAS
Aqua PA Roaring Creek Division 43,000 17 Clean
PA American White Deer 30,209 10 Clean
Municipal Authority Sunbury 11,043 604 Clean
The Fence 750 84 -
PA American Turbotville 705 142 -
Splash Magic 700 254 -
Line Mountain SR High School 644 225 -
Sunoco Food Mart # 2342 500 39 -
M M Food Mart 500 19 -
Lower Mahanoy Twp Mun Auth 450 170 -
Herndon Boro Jackson Twp Jma 432 182 -
Penn 80 Milton 300 576 -
PA American McEwensville 282 388 -
Cherokee Pharmaceuticals LLC 230 75 -
Aqua PA East Cameron 200 556 -
Ye Olde Meeting Place 200 167 -
Knoebels Three Ponds Golf Club 200 43 -
Pottsgrove Fire Company 200 85 -
Indian Hills Golf & Tennis 150 288 -
Milton Jellyston Park 150 327 -
Mays Drive IN 140 80 -
Irish Valley Campground 120 188 -
Maranatha Christian School 110 62 -
Sunbury Airport Campsite 105 61 -
Bucknell View MHP 100 414 -
Dental Health Associates 100 24 -
Stielys River Shore Campsite 100 143 -
Paw and Plate 100 47 -
R and R Campground 100 20 -
Hannahs Restaurant 100 177 -
Zartman Construction 100 383 -
Shamokin Cong Jehovahs Witness 90 42 -
Heeters Drive IN 85 88 -
Mt View Bible Camp 80 16 -
The Roost 75 40 -
St Louis de Montfort Academy 66 0 -
Bradleys Fern Park 60 44 -
Famvestxv Cottage Pk Ft Boone 54 82 -
D and H Trailer Park 50 408 -
White Oak Tavern 50 65 -
Ric Mar Restaurant 50 18 -
Gare de Pas Cooties 50 120 -
South Side Fire Company #1 50 50 -
Family Practice Center 50 53 -
Ghezzis 50 58 -
River View Campground 50 77 -
Sunbury Animal Hospital 45 274 -
Wrays Riverfront Campground 45 81 -
Milton Boat Club 35 98 -
Anthracite Industries Inc 30 0 -

Compare beyond Pennsylvania

Mid-flagged peers for Northumberland County

Cross-state counties nearest Northumberland County on flagged-system share (97.0%) and cumulative violation count (9,157). 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.