States › Pennsylvania › Lancaster County

Lancaster County, PA Water Quality

Water quality data for 41 public water systems serving Lancaster County, Pennsylvania — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 41 water systems · 68 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Lancaster County Earns a B

Lancaster County: 68 communities across 41 water systems. 100.0% have no open violations.

  • Median lead where detected: 5.00 ppb
  • 59 communities with a lead detection, 5 reporting none detected
  • 25 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
5 ppb
Median Lead Level
County-wide, 90th percentile
41
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Mount Joy
    4.00 ppb
    No federal limits exceeded on record
    A
  • Akron
    2.00 ppb
    No federal limits exceeded on record
    A
  • Rapho
    4.00 ppb
    No federal limits exceeded on record
    A
  • Leacock
    Not reported
    No federal limits exceeded on record
    B
  • Paradise
    Not reported
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • East Petersburg
    5.90 ppb
    PFAS above the limit at 2 of 2 sampling points
    D
  • Christiana
    70.00 ppb
    Lead above the 15 ppb action level
    D
  • Sadsbury
    70.00 ppb
    Lead above the 15 ppb action level
    D
  • Lancaster
    7.00 ppb
    PFAS above the limit at 1 of 2 sampling points
    D
  • Manheim
    7.00 ppb
    PFAS above the limit at 1 of 2 sampling points
    D
County Lead Level — Median 5 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 5 ppb — 33.3% of the federal action level
Systems by Lead Level
Under 5 ppb
27
5 – 10 ppb
22
10 – 15 ppb
10
No Data
9

All Cities in Lancaster County

Lancaster 7.00 ppb D
Manheim 7.00 ppb D
Lancaster 7.00 ppb D
West Lampeter 7.00 ppb D
East Hempfield 8.00 ppb B
East Lampeter 7.00 ppb D
Ephrata 1.52 ppb B
West Hempfield 1.00 ppb B
Manor 7.00 ppb D
Elizabethtown 3.00 ppb C
Warwick 1.00 ppb A
Columbia 1.00 ppb B
Lititz 7.00 ppb A
Willow Street 7.00 ppb D
Mount Joy 4.00 ppb A
Ephrata 1.52 ppb B
East Cocalico Not detected C
Leola 2.00 ppb C
Mount Joy 3.00 ppb C
Upper Leacock 2.00 ppb C
Millersville 7.00 ppb D
New Holland Not detected D
Manheim Not detected D
East Donegal 5.00 ppb A
East Petersburg 5.90 ppb D
West Earl 4.80 ppb B
Akron 2.00 ppb A
Denver 1.50 ppb B
Rapho 4.00 ppb A
Clay 1.52 ppb B
Strasburg 8.10 ppb B
Mountville 1.00 ppb B
Salunga 8.00 ppb B
West Donegal 3.00 ppb C
West Cocalico 4.00 ppb B
Marietta 1.00 ppb B
Quarryville 5.00 ppb B
Pequea 7.00 ppb D
Rheems 3.00 ppb C
Leacock Not reported B
Penn 5.00 ppb B
Adamstown 5.00 ppb B
Paradise Not reported B
Conoy 13.00 ppb B
Terre Hill 9.00 ppb B
Clay 1.52 ppb B
Earl Not detected D
East Earl 2.10 ppb B
Christiana 70.00 ppb D
Providence 5.00 ppb B
Brecknock 4.90 ppb B
Stevens Not detected C
Sadsbury 70.00 ppb D
Salisbury 4.40 ppb B
Bart 2.00 ppb A
Elizabeth 21.50 ppb C
Caernarvon 18.00 ppb C
East Drumore 6.40 ppb C
Martic 21.00 ppb C
Conestoga 16.00 ppb C
Eden 36.50 ppb D
Soudersburg Not reported B
Drumore 13.80 ppb B
Gap Not reported B
Little Britain 4.76 ppb A
Fulton 60.50 ppb C
Colerain 2.00 ppb A
Strasburg 8.10 ppb B
Showing 68 cities
No active violations Active violations

About Lancaster County Drinking Water

Lancaster County is served by 41 water systems covering 68 communities. No community here has an open violation on record.

Of the communities reporting lead results, 59 recorded a detection, with a median of 5.00 ppb — 33% of the federal action level. 5 reported none detected, which means below the laboratory limit rather than an absence of lead.

25 of 68 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is Lancaster County tap water safe to drink?▼
No community in Lancaster County has an open violation on record. 25 of 68 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Lancaster County?▼
Among communities with a detection the median is 5.00 ppb, 33% of the 15 ppb action level. 5 reported none detected and 4 reported no result.
How many water systems serve Lancaster County?▼
41 community water systems serve 68 communities here.
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