No health-based violations on EPA record since 2016.
Serves about 38,050 people (13,619 connections) with groundwater from its own wells, and buys water from City of Yakima.
From EPA's record for WA5359700. PurityMap is independent of Nob Hill Water Association.
Are you this utility? Correct this listing →
No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from October 2023 to June 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 33 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 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 | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 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 | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 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 | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 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 | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 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 | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| 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 | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-02 to 2024-06-18 | UCMR5 Analytical Results: NOB HILL WATER ASSOCIATION (WA5359700) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
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 →According to EPA's record, Nob Hill Water Association uses groundwater from its own wells, and buys water from City of Yakima.
No health-based violations on EPA record since 2016. EPA also lists 20 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 Nob Hill Water Association's latest lead and copper round, which ended in December 2024. The federal action level is 15 µg/L.
PurityMap has no verified website for Nob Hill Water Association. Its mailing address on EPA record is 6111 Tieton Dr, Yakima, WA 98908. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.