Tiller Mill Lake
Tiller Mill Lake in Washington County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 474 acres.
- Area
- 474 acres
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Why Tiller Mill 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 Tiller Mill 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 FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Tiller Mill Lake is a 474-acre lake in Washington County, Florida.
Source: EPA Water Quality Portal sampling records, FDEP, 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 Tiller Mill 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 Tiller Mill Lake
Compare lakeside cabins, hotels, and vacation rentals near Tiller Mill Lake in Washington County, Florida — 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 Tiller Mill Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 474 acres |
No bathymetric survey has been published for Tiller Mill Lake, so its depth is not documented here.
Fishing Tiller Mill Lake
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Frequently asked questions about Tiller Mill Lake
Where is Tiller Mill Lake?
- Tiller Mill Lake is a lake in Washington County, Florida. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Tiller Mill Lake?
- Tiller Mill Lake in Washington County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 474 acres.
Is Tiller Mill Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Tiller Mill Lake 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 Tiller Mill Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.