Oneida Narrows Reservoir
Oneida Narrows Reservoir in Franklin County, Idaho is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 430 acres.
- Area
- 430 acres
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Why Oneida Narrows Reservoir has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Oneida Narrows Reservoir, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by IDEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Oneida Narrows Reservoir is a 430-acre lake in Franklin County, Idaho.
Source: EPA Water Quality Portal sampling records, IDEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Oneida Narrows Reservoir
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Oneida Narrows Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Oneida Narrows Reservoir in Franklin County, Idaho — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Oneida Narrows Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 430 acres |
No bathymetric survey has been published for Oneida Narrows Reservoir, so its depth is not documented here.
Fishing Oneida Narrows Reservoir
Nearby Lakes in Franklin County
Frequently asked questions about Oneida Narrows Reservoir
Where is Oneida Narrows Reservoir?
- Oneida Narrows Reservoir is a lake in Franklin County, Idaho. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Oneida Narrows Reservoir?
- Oneida Narrows Reservoir in Franklin County, Idaho is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 430 acres.
Is Oneida Narrows Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Oneida Narrows Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Oneida Narrows Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.