No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2020.
Serves about 80 people (31 connections) with groundwater bought from Grand Canyon National Park.
From EPA's record for AZ0403659. PurityMap is independent of Usfs KNF Tusayan Admin.
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4 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2022 | E. coli | – | – | Resolved |
| From June 2022 | Groundwater Rule | – | – | Resolved |
| Jul–Sep 2020 | Total trihalomethanes (TTHM) | 0.102 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2020 | Total trihalomethanes (TTHM) | 0.113 mg/L | 0.080 mg/L | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
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.
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Follow this water →Usfs KNF Tusayan Admin's phone number on EPA record is 928-522-3332. Its mailing address is Attn: Kristina Brown, 1824 S THOMPSON ST, FLAGSTAFF, AZ 86001-2529.
According to EPA's record, Usfs KNF Tusayan Admin uses groundwater bought from Grand Canyon National Park.
EPA's record shows 4 health-based violations for Usfs KNF Tusayan Admin 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 July 2020. EPA also lists 30 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Usfs KNF Tusayan Admin's latest lead and copper round, which ended in December 2023, was 3.9 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Usfs KNF Tusayan Admin. Its phone number on EPA record is 928-522-3332. Its mailing address on EPA record is Attn: Kristina Brown, 1824 S THOMPSON ST, FLAGSTAFF, AZ 86001-2529. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.