No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2017.
Serves about 9,223 people (3,580 connections) with surface water from its own intake, and buys water from City of Mebane, City of Graham, Town of Hillsborough and 2 more.
From EPA's record for NC0368020. PurityMap is independent of Orange-Alamance Water System.
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6 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From January 2026 | Carbon, total | 0.92 RATIO | TT | Archived |
| From October 2025 | Carbon, total | 0.95 RATIO | TT | Archived |
| From July 2025 | Carbon, total | 0.95 RATIO | TT | Archived |
| Apr–Jun 2017 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2017 | Total trihalomethanes (TTHM) | 0.085 mg/L | 0.080 mg/L | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2016 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2025 to October 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 11.8 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorooctanoic acid (PFOA) | 9.4 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorohexanoic acid (PFHxA) | 4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoroheptanoic acid (PFHpA) | 3.3 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoropentanoic acid (PFPeA) | 3.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 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 | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 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 | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 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 | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 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 | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 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 | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| 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 | 2025-03-05 to 2025-08-27 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-12 to 2025-10-15 | UCMR5 Analytical Results: ORANGE-ALAMANCE WATER SYSTEM (NC0368020) |
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 →Orange-Alamance Water System's phone number on EPA record is 336-563-6212. Its mailing address is PO BOX 187, MEBANE, NC 27302.
According to EPA's record, Orange-Alamance Water System uses surface water from its own intake, and buys water from City of Mebane, City of Graham, Town of Hillsborough and 2 more.
EPA's record shows 6 health-based violations for Orange-Alamance Water System in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2017. EPA also lists 52 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Orange-Alamance Water System's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Orange-Alamance Water System. Its phone number on EPA record is 336-563-6212. Its mailing address on EPA record is PO BOX 187, MEBANE, NC 27302. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.