Lower Lake Mary
Lower Lake Mary in Coconino County, Arizona is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 257 acres.
- Area
- 257 acres
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Why Lower Lake Mary 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 Lower Lake Mary, 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 ADEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lower Lake Mary is a 257-acre lake in Coconino County, Arizona.
Source: EPA Water Quality Portal sampling records, ADEQ, 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 Lower Lake Mary
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 Lower Lake Mary
Compare lakeside cabins, hotels, and vacation rentals near Lower Lake Mary in Coconino County, Arizona — 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 Lower Lake Mary
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 257 acres |
No bathymetric survey has been published for Lower Lake Mary, so its depth is not documented here.
Fishing Lower Lake Mary
Nearby Lakes in Coconino County
Frequently asked questions about Lower Lake Mary
Where is Lower Lake Mary?
- Lower Lake Mary is a lake in Coconino County, Arizona. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lower Lake Mary?
- Lower Lake Mary in Coconino County, Arizona is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 257 acres.
Is Lower Lake Mary safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lower Lake Mary is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Lower Lake Mary come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.