Stan Coffin Lake
Stan Coffin Lake in Grant County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 53 acres.
- Area
- 53 acres
- Public access
- Yes
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Why Stan Coffin 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 Stan Coffin 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.
Stan Coffin Lake is a 53-acre lake in Grant County, Washington. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, WA Ecology, 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 Stan Coffin 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 Stan Coffin Lake
Compare lakeside cabins, hotels, and vacation rentals near Stan Coffin Lake in Grant 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 Stan Coffin Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 53 acres |
| Public Access | Yes |
No bathymetric survey has been published for Stan Coffin Lake, so its depth is not documented here.
Recreation & Access
- Stan Coffin LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Stan Coffin Lake
Nearby Lakes in Grant County
Frequently asked questions about Stan Coffin Lake
Where is Stan Coffin Lake?
- Stan Coffin Lake is a lake in Grant 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 Stan Coffin Lake?
- Stan Coffin Lake in Grant County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 53 acres.
Is Stan Coffin Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Stan Coffin 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 Stan Coffin Lake?
- Stan Coffin Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Stan Coffin Lake. Public access is listed as yes.
Explore Stan Coffin Lake across LakeQuality
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Where this data comes from
Measurements for Stan Coffin 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