Williams Lake
Williams Lake in Spokane County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 317 acres.
- Area
- 317 acres
- Public access
- Yes
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Why Williams Lake 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 Williams Lake, 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 WA Ecology and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Williams Lake is a 317-acre lake in Spokane County, Washington. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, WA Ecology, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Williams Lake 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 Williams Lake
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 Williams Lake
Compare lakeside cabins, hotels, and vacation rentals near Williams Lake in Spokane County, Washington — 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 Williams Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 317 acres |
| Public Access | Yes |
No bathymetric survey has been published for Williams Lake, so its depth is not documented here.
Recreation & Access
- Williams LakePublic
- Bunker's Resort and MarinaSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Williams Lake
Nearby Lakes in Spokane County
Frequently asked questions about Williams Lake
Where is Williams Lake?
- Williams Lake is a lake in Spokane County, Washington. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Williams Lake?
- Williams Lake in Spokane County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 317 acres.
Is Williams Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Williams Lake 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 Williams Lake?
- Williams Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Williams Lake, Bunker's Resort and Marina. Public access is listed as yes.
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Where this data comes from
Measurements for Williams Lake 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