No open health-based violations on EPA record in the last 10 years.
Serves about 8,455 people (3,848 connections) with surface water from its own intake, and buys water from Carlisle Water TRMT PLT, South Middleton Twp Water Auth and Middlesex Twp Muni Auth.
From EPA's record for PA7210049. PurityMap is independent of N Middleton Water Auth.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2017 | Surface Water Treatment Rule | – | – | Resolved |
| From October 2016 | Carbon, total | – | TT | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2025 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 16.9 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorooctanoic acid (PFOA) | 8 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorohexanesulfonic acid (PFHxS) | 3.5 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorobutanesulfonic acid (PFBS) | 7.8 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorohexanoic acid (PFHxA) | 5.5 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoropentanoic acid (PFPeA) | 3.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-22 | UCMR5 Analytical Results: N MIDDLETON WATER AUTH (PA7210049) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →N Middleton Water Auth's phone number on EPA record is 717-243-8269. Its mailing address is 240 CLEARWATER DR, CARLISLE, PA 17013.
According to EPA's record, N Middleton Water Auth uses surface water from its own intake, and buys water from Carlisle Water TRMT PLT, South Middleton Twp Water Auth and Middlesex Twp Muni Auth.
EPA's record shows 2 health-based violations for N Middleton Water Auth in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 12 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in N Middleton Water Auth's latest lead and copper round, which ended in September 2025, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for N Middleton Water Auth. Its phone number on EPA record is 717-243-8269. Its mailing address on EPA record is 240 CLEARWATER DR, CARLISLE, PA 17013. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.