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LakeQuality

Lake Disston

NR
Not yet rated
0.7 ft clear · Hypereutrophic
Limited DataHypereutrophic

Lake Disston in Pinellas County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 0.7 ft visibility. Phosphorus: 94 µg/L.

Clarity
0.7 ft

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Why Lake Disston 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 Disston, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).

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.

Lake Disston is a lake in Pinellas County, Florida.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2022-06-15. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Lake Disston

These readings exist but are not enough for an A–F grade — see why.

Very murky, less than 0.7 ft of visibility. Phosphorus level: 94 µg/L. Trophic State Index: 76.

MetricValueGrade
Water Clarity (Secchi Depth)0.7 ftNot graded
Phosphorus94 µg/LNot graded
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)76Hypereutrophic

Very high nutrients, dense algae, poor clarity

Where to stay near Lake Disston

Compare lakeside cabins, hotels, and vacation rentals near Lake Disston in Pinellas 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 Lake Disston

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Fishing Lake Disston

EPA Impairment Status

Lake Disston is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit FL1694F · Official waterbody report · Matched by proximity (2.98 km)

Graded lakes near Lake Disston

Lake Disston has no grade, but these lakes within a short drive do.

Nearby Lakes in Pinellas County

Frequently asked questions about Lake Disston

Where is Lake Disston?

Lake Disston is a lake in Pinellas County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).

What is the water quality grade for Lake Disston?

Lake Disston in Pinellas County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 0.7 ft visibility. Phosphorus: 94 µg/L.

Is Lake Disston safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Disston is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

Where this data comes from

2 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Submitting organization not recorded for these samples2 samples · 2022
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database