Londonderry Elem Sch
Published drinking-water records and contacts for Londonderry Elem Sch. System PA7220373. Review sources and dates; not a real-time water assessment.
- System ID
- PA7220373
- State or territory
- PA
- Published population served
- 465
- System type (source code)
- NTNCWS
Published records and dates
- Lead and copper monitoring summaries: 14 — 1993-07-01 – 2025-12-31
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Copper (CU90) | 1.633 mg/L | 2025-07-01 – 2025-12-31 | 2026Q3 |
| Copper (CU90) | 1.396 mg/L | 2023-07-01 – 2023-12-31 | 2026Q3 |
| Copper (CU90) | 1.675 mg/L | 2023-01-01 – 2023-06-30 | 2026Q3 |
| Copper (CU90) | 4.304 mg/L | 2022-06-01 – 2022-09-30 | 2026Q3 |
| Lead (PB90) | 0.0396 mg/L | 2006-01-01 – 2006-06-30 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2004-07-01 – 2004-12-31 | 2026Q3 |
| Lead (PB90) | 0.193 mg/L | 2003-01-01 – 2003-06-30 | 2026Q3 |
| Copper (CU90) | 6.25 mg/L | 2002-01-01 – 2002-06-30 | 2026Q3 |
Published compliance history
30 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2025-06-01 – 2025-06-30 | Resolved | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2024-04-01 – 2024-06-30 | Resolved | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2024-04-01 – 2024-06-30 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2020-12-01 – 2020-12-31 | Resolved | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2018-07-01 – 2018-09-30 | Resolved | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2018-07-01 – 2018-09-30 | Resolved | No | 2026Q3 |
| Volatile Organic Chemicals / Maximum Contaminant Level Violation, Single Sample | 2002-01-01 – 2002-12-31 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1997-10-01 – 1997-12-31 | Archived | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 1993-10-01 – 1993-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 1993-01-01 – 1993-03-31 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Administrative contact (EPA filing)
Londonderry Elem Sch: 717-566-5306
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.