Spring Valley Reservoir
Spring Valley Reservoir in Latah County, Idaho is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 51 acres.
- Area
- 51 acres
- Public access
- Yes
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Why Spring Valley 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 Spring Valley 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.
Spring Valley Reservoir is a 51-acre lake in Latah County, Idaho. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, IDEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Spring Valley Reservoir water quality
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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 Spring Valley 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 Spring Valley Reservoir
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Top-rated places to stay near Spring Valley Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 51 acres |
| Public Access | Yes |
No bathymetric survey has been published for Spring Valley Reservoir, so its depth is not documented here.
Recreation & Access
- Spring Valley ReservoirPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Spring Valley Reservoir
Nearby Lakes in Latah County
Frequently asked questions about Spring Valley Reservoir
Where is Spring Valley Reservoir?
- Spring Valley Reservoir is a lake in Latah 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 Spring Valley Reservoir?
- Spring Valley Reservoir in Latah County, Idaho is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 51 acres.
Is Spring Valley Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Spring Valley Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Spring Valley Reservoir?
- Spring Valley Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Spring Valley Reservoir. Public access is listed as yes.
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Where this data comes from
Measurements for Spring Valley Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory