Inlet Arizona Island Lake
Teton County, WyomingView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Limited data
Inlet Arizona Island Lake in Teton County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 17.5 ft visibility.
- Clarity
- 17.5 ft
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Watch Inlet Arizona Island Lake’s letter
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Why Inlet Arizona Island Lake has no grade
Inlet Arizona Island Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Inlet Arizona Island Lake is Not Rated — not an F. Its 17.5-foot median from 3 readings collected 2021 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Inlet Arizona Island Lake is a lake in Teton County, Wyoming.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2021-10-21. Grade methodology: LakeQuality methodology.
What Inlet Arizona Island Lake is good for
From access and monitoring records, not editorial picks.
- Clear water17.5 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Inlet Arizona Island Lake
These readings exist but are not enough for an A–F grade — see why.
Crystal clear, you can see 17.5 ft down. TSI 36.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 17.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 36 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Inlet Arizona Island Lake
Nearby Lakes in Teton County
Frequently asked questions about Inlet Arizona Island Lake
Where is Inlet Arizona Island Lake?
- Inlet Arizona Island Lake is a lake in Teton County, Wyoming. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Inlet Arizona Island Lake?
- Inlet Arizona Island Lake in Teton County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 17.5 ft visibility.
Is Inlet Arizona Island Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Inlet Arizona Island Lake across LakeQuality
2 documented falls within 19.4 mi, nearest Hidden Falls
1.1 mi away · recorded at 162°F
Species activity outlook by water temperature and season
Where to stay at Wyoming's top lakes, each with its grade
Wyoming's cleanest and most-polluted lakes, ranked
Planning a trip around Grand Teton?
Inlet Arizona Island Lake is about 9 miles from Grand Teton National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Grand Teton →More Wyoming Lake Rankings
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Where this data comes from
3 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Bureau of Reclamation
1119USBR_WQX3 samples · 2021
Analytical methods
- Zebra/Quagga Mussel APHA 10200G Modified
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.