Lancaster Water Quality
Pennsylvania
According to EPA SDWIS, Lancaster, Pennsylvania is served by 13 community water systems covering about 121,677 people. The same extract lists 39 health-based violation records, most recently coded 0700 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Lancaster, Pennsylvania is delivered through 13 EPA-regulated community water systems serving an estimated 121,677 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 39 violation records across the 13 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 8 distinct EPA contaminant codes: Groundwater Rule, LEAD AND COPPER RULE REVISIONS, Gross Alpha, Excl. Radon and U, TTHM, Revised Total Coliform Rule and 3 others. 28 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Pennsylvania drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| CITY OF LANCASTER | 120,000 | 3 | Health |
| TAMARACK & SPREAD EAGLE MHP | 300 | 0 | Clean |
| CONOWINGO MOBILE HOME PARK | 250 | 1 | Health |
| HAWK VALLEY VILLAGE | 250 | 0 | Clean |
| COUNTRY GARDENS TRAILER COURT | 180 | 0 | Clean |
| ROLLING HILLS MHP | 150 | 0 | Clean |
| VILLAGE AT SAFE HARBOR | 120 | 9 | Health |
| DEVON CREEK DEVELOPMENT | 100 | 0 | Clean |
| COCHRANVILLE MHP | 99 | 3 | Health |
| GROFFDALE MOBILEHOME PARK | 98 | 10 | Health |
| MAYBELLE MANOR MOBILE HOME PARK | 50 | 1 | Health |
| WELLSVILLE MOBILE HOME COMMUNITY | 45 | 2 | Health |
| O YES APTS | 35 | 10 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| O YES APTS | Groundwater Rule | 2025-05-01 |
| COCHRANVILLE MHP | Groundwater Rule | 2025-05-01 |
| MAYBELLE MANOR MOBILE HOME PARK | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| CONOWINGO MOBILE HOME PARK | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-07-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-07-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-04-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-04-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-04-01 |
| CITY OF LANCASTER | TTHM | 2024-04-01 |
| CITY OF LANCASTER | TTHM | 2024-04-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2023-10-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2023-10-01 |
| GROFFDALE MOBILEHOME PARK | Gross Alpha, Excl. Radon and U | 2023-10-01 |
| VILLAGE AT SAFE HARBOR | Revised Total Coliform Rule | 2022-08-02 |
| VILLAGE AT SAFE HARBOR | Revised Total Coliform Rule | 2022-08-02 |
| VILLAGE AT SAFE HARBOR | Revised Total Coliform Rule | 2022-08-02 |
| VILLAGE AT SAFE HARBOR | Revised Total Coliform Rule | 2022-08-02 |
| COCHRANVILLE MHP | Revised Total Coliform Rule | 2021-08-04 |
| O YES APTS | Groundwater Rule | 2021-03-01 |
| O YES APTS | Groundwater Rule | 2021-03-01 |
| VILLAGE AT SAFE HARBOR | Groundwater Rule | 2020-11-01 |
| VILLAGE AT SAFE HARBOR | Groundwater Rule | 2020-11-01 |
| O YES APTS | Groundwater Rule | 2020-01-01 |
| O YES APTS | Groundwater Rule | 2020-01-01 |
| O YES APTS | Groundwater Rule | 2019-12-01 |
| O YES APTS | Groundwater Rule | 2019-12-01 |
| VILLAGE AT SAFE HARBOR | Groundwater Rule | 2019-12-01 |
| VILLAGE AT SAFE HARBOR | Groundwater Rule | 2019-12-01 |
| VILLAGE AT SAFE HARBOR | Groundwater Rule | 2019-08-01 |
| WELLSVILLE MOBILE HOME COMMUNITY | Manganese | 2019-01-01 |
| WELLSVILLE MOBILE HOME COMMUNITY | Manganese | 2017-10-01 |
| O YES APTS | Groundwater Rule | 2017-08-01 |
| O YES APTS | Groundwater Rule | 2017-04-01 |
| CITY OF LANCASTER | Total Haloacetic Acids (HAA5) | 2016-10-01 |
| O YES APTS | Groundwater Rule | 2016-08-01 |
| COCHRANVILLE MHP | Lead and Copper Rule | 2014-01-01 |
What are Lancaster's health-based records for?
Lancaster's health-based violation records carry 8 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Groundwater Rule | 16 | 3 |
| Gross Alpha, Excl. Radon and U | 10 | 1 |
| Revised Total Coliform Rule | 5 | 2 |
| Lead and Copper Rule Revisions | 2 | 2 |
| Manganese | 2 | 1 |
| Tthm | 2 | 1 |
| Total Haloacetic Acids (HAA5) | 1 | 1 |
| Lead and Copper Rule | 1 | 1 |
TRI Facilities in Lancaster
| Facility | Total Releases |
|---|---|
| Lsc Communications / Lancaster East | 628.1K lbs |
| High Steel Structures - Lancaster Facility | 291.4K lbs |
| Arconic US LLC | 149.4K lbs |
| Lancaster Leaf Tobacco Co. of Pa Inc. | 68.3K lbs |
| Kalas Manufacturing Inc Lancaster Plant | 60.3K lbs |
| Wenger Feeds Llc-Hempfield (f/k/a Wenger Feed Mill Inc) | 53.8K lbs |
| Parker Hannifin (aka Clark Filter) | 32.8K lbs |
| Lsc Communications / Lancaster West | 28.1K lbs |
| J Walter Miller Co | 12.0K lbs |
| Kunzler & Co Inc. | 10.0K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Lancaster, Pennsylvania? ▼
How many water violations does Lancaster have in this EPA extract? ▼
What contaminants were found in Lancaster water? ▼
How many water systems serve Lancaster? ▼
Where does Lancaster get its drinking water? ▼
Are there pollution sources near Lancaster? ▼
How does Lancaster compare in Pennsylvania?
Of the 769 Pennsylvania places with at least one community water system on file, Lancaster ranks #14 by number of systems (13).
Either side of it: Bushkill (13), East Stroudsburg (13), New Castle (13), Fairview (12)
About This Data
Figures here are the current EPA SDWIS extract joined to the 13 community water systems whose service area lists Lancaster, ranked against the 769 Pennsylvania places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.