Lake Pateros
Lake Pateros in Douglas County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 8376 acres.
- Area
- 8,376 acres
- Public access
- Yes
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Why Lake Pateros 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 Lake Pateros, 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.
Lake Pateros is a 8,376-acre lake in Douglas County, Washington. Limited fish-species data available. Public access is available with 3 public boat landings.
Source: EPA Water Quality Portal sampling records, WA Ecology, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Pateros 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 Lake Pateros
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 Lake Pateros
Compare lakeside cabins, hotels, and vacation rentals near Lake Pateros in Douglas 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 Lake Pateros
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 8,376 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Pateros, so its depth is not documented here.
Recreation & Access
- Northeast PaterosPublic
- PaterosPublic
- South Bank of Methow RiverPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Pateros
Nearby Lakes in Douglas County
Frequently asked questions about Lake Pateros
Where is Lake Pateros?
- Lake Pateros is a lake in Douglas 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 Lake Pateros?
- Lake Pateros in Douglas County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 8376 acres.
Is Lake Pateros safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Pateros 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 Lake Pateros?
- Lake Pateros has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Northeast Pateros, Pateros, South Bank of Methow River. Public access is listed as yes.
Explore Lake Pateros across LakeQuality
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Where this data comes from
Measurements for Lake Pateros 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