Lake Arrowhead
Lake Arrowhead in San Bernardino County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 736 acres.
- Area
- 736 acres
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Why Lake Arrowhead 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 Arrowhead, 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 your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Arrowhead is a 736-acre lake in San Bernardino County, California. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Arrowhead 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 Arrowhead
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 Arrowhead
Compare lakeside cabins, hotels, and vacation rentals near Lake Arrowhead in San Bernardino County, California — 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 Arrowhead
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 736 acres |
No bathymetric survey has been published for Lake Arrowhead, so its depth is not documented here.
Recreation & Access
- Lake Arrowhead Yacht ClubSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Arrowhead
Nearby Lakes in San Bernardino County
Frequently asked questions about Lake Arrowhead
Where is Lake Arrowhead?
- Lake Arrowhead is a lake in San Bernardino County, California. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Arrowhead?
- Lake Arrowhead in San Bernardino County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 736 acres.
Is Lake Arrowhead safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Arrowhead 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 Arrowhead?
- Lake Arrowhead has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Arrowhead Yacht Club.
Explore Lake Arrowhead across LakeQuality
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Where this data comes from
Measurements for Lake Arrowhead 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