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Counties → Pennsylvania

Adams County, Pennsylvania

SDWIS compliance plate

Sheet PA001 · Adams County 165 sys · 14,938 viol · #667/3254

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

  • VIOL-SEVERE 95.2% flagged
  • HEALTH-LOW 6.3% health
  • RANK-UPPER #667/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 99%
  • SYS-LARGE 165 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Mercer County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Adams County ranks #667 of 3,254 counties by people served, and #32 of 68 counties in Pennsylvania. See methodology · corpus placement.

Adams County standing, mid-flagged corpus third

Flagged-system rate 95.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 6.3% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #667 of 3,254 · #32 of 68 in Pennsylvania.

Flagged-rate neighbourhood around Adams County

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

0% 20% 40% 60% 80% 100% Greene · lowest Cumberland · near Adams · this county Sullivan · highest 66.7% 94.7% 94.9% 94.9% 95.2% 95.2% 100%

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

Water Systems

System Name Population Violations PFAS
Gettysburg Muni Auth 12,425 745 Detected
Littlestown Boro 7,300 464 Detected
Outlet Shops at Gettysburg 6,500 254 Detected
New Oxford Munci Auth 3,963 512 Detected
Lake Meade Muni Auth 3,221 84 -
Bonneauville Muni Water Auth 2,730 985 -
Biglerville Water Co 2,501 137 -
Bermudian Springs Sch Dist 2,300 65 -
Fairfield Muni Auth 2,150 93 -
Weis Markets East Berlin 1,800 87 -
East Berlin Area Joint Auth 1,750 348 -
PA Amer Water Co Lake Heritage 1,648 37 -
Arendtsville Muni Water Sys 1,200 87 -
Drummer Boy Cg 1,100 21 -
York Springs Muni Water 1,095 82 -
Bendersville Muni Auth 1,039 195 -
Ski Liberty 1,000 74 -
Rutters Store 17 1,000 10 -
Granite Hill Campground 950 211 -
Rutters Store 36 900 4 -
Possum Valley Muni Auth 800 195 -
Gettysburg Cpgrd 800 40 -
Eisenhower Water Supply 760 65 -
Harvest Chapel 600 0 -
Gettysburg Battlefield Resort 500 14 -
Gettysburg National Golf Club 500 4 -
Gettysburg Sunoco 2709 500 81 -
Freedom Valley Worship Ctr 500 21 -
Adams Cnty Fac Ctr 456 62 -
Amblebrook 450 16 -
Bethel Assembly of God Ltown 450 296 -
Franklin Twp Muni Auth 441 134 -
New Oxford Mhc 437 64 -
Walnut Grove Mhc 425 101 -
Artillery Ridge Cpgrd 400 65 -
Conewago Cpgd 400 32 -
Frontier Bar B Q 400 6 -
Aqua PA Links at Gettysburg Sy 398 44 -
New Oxford Manor MHP 350 310 -
Knouse Foods Inc Peach Glen 340 40 -
Dave & Janes 325 38 -
Knouse Foods Inc Orrtanna 316 92 -
Gettysburg Montessori School 308 9 -
Anchor Estates 300 58 -
Jen Jens Rhythm N Brews 300 32 -
Gettysburg K O A 300 23 -
Crabbs Tropical Treat 300 82 -
Camp Nawakwa 300 33 -
910 Bj LLC 300 21 -
Gettysburg Hampton Inn 300 23 -

Compare beyond Pennsylvania

Mid-flagged peers for Adams County

Cross-state counties nearest Adams County on flagged-system share (95.2%) and cumulative violation count (14,938). 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.