Florida lake · state assessment record
Grassy Prairie
The assessment record reported by Florida to EPA under Clean Water Act sections 303(d) and 305(b), filed in the 2024 reporting cycle.
- 111
- Assessed acres
- Lake, Freshwater
- Water type
This waterbody in one line
Grassy Prairie, a lake in Florida, was reported but not assessed in the state's most recent Integrated Report cycle (2024). By assessed acreage it sits above the national median by assessed acreage (38,628 lakes).
- Not Assessed
- overall status
- P72
- Assessed size nationally
Assessment verdicts are the state agency's decisions as reported to EPA ATTAINS; PlainLakes renders them without modification.
Reading Grassy Prairie's filed record
Paragraphs are selected by this unit's percentiles and use matrix: different lakes lead with different dimensions. Figures are ATTAINS / portal register arithmetic, not advice.
The signature stat: assessed size
The number that most separates Grassy Prairie nationally is assessed size: 110.9 acres, larger than 72% of the 38,628 lake-type units with an area on file.
IR category 3 on Grassy Prairie
The Integrated Report category filed for Grassy Prairie is 3. PlainLakes renders EPA's code without remapping it into a consumer grade.
Overall status: Not Assessed
ATTAINS overall status on this unit is “Not Assessed”. PlainLakes does not rewrite that vocabulary into a consumer score.
According to the U.S. Environmental Protection Agency's ATTAINS program, Florida carries 1,475 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Grassy Prairie without modification. See our methodology for reporting-unit limits and gauge linking rules.
The record
Designated-use assessments
Fully Supporting and Not Supporting are the state's definitive verdicts; other entries mean the use was not conclusively assessed in this cycle.
| Designated use | Group | Verdict |
|---|---|---|
| Fish and Wildlife Propagation - Freshwater | Aquatic-life or related | Insufficient Information |
| Recreation | Recreation | Insufficient Information |
The record
Listed impairment causes
The state reported this lake in its 2024 Integrated Report cycle but reached no assessment determination, so no causes are listed. The unit is recorded under EPA integrated-reporting Category 3: reviewed, with insufficient information to determine whether it meets water-quality standards. An undetermined waterbody is neither confirmed clean nor confirmed impaired.
Reading the record
What Grassy Prairie's record holds
Scale and rank
Grassy Prairie is one of 1,475 lake-type waterbodies reported to EPA from Florida. It is not among the 973 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 111 assessed acres it ranks 10,932nd by assessed size among the 38,628 lakes the dataset carries an area for, counting a state’s repeated filings of one water once, behind 10,931 lakes with a larger one.
What this record holds
Florida filed this lake in its 2024 Integrated Report cycle but reached no determination, so the record holds that filing and its use rows, but no verdict, and with nothing judged, no impairment cause to track over time. The state has not yet filed a definitive fish-consumption verdict, a definitive recreation verdict, a definitive aquatic-life verdict, and 1 other for this record; those fields populate when it reports them in a future Integrated Report cycle.
In context
Where Grassy Prairie sits nationally
Assessed size among U.S. lakes
Distribution of assessed acreage across ATTAINS lakes filed with an area, counting a state’s repeated filings of one water once
111 Top 28% larger than 72% of 38,628 lakes
lakes the dataset carries an area for, counting a state’s repeated filings of one water once, bucketed by value
Source EPA ATTAINS · Reporting cycles 1987–2026
In both charts each bar is a band and taller bars hold more waterbodies; the dashed line and filled bar mark Grassy Prairie. Hover or tap any bar for its full count and share.
In context
Florida context
ATTAINS carries 1,475 lake-type waterbodies in Florida, 636 assessed as not supporting at least one use and 367 fully supporting.
| Other large assessed lakes in Florida | Assessed acres |
|---|---|
| Lake Okeechobee Not Supporting | 76,101 |
| Lake George Not Supporting | 43,576 |
| Lake Apopka Not Supporting | 30,909 |
| Lake Kissimmee Not Supporting | 30,671 |
| Lake Istokpoga Not Supporting | 26,673 |
| Lake Tohopekaliga Fully Supporting | 19,006 |
Lakes near Grassy Prairie's assessed acres
Similar assessed acres
Nearest filed extents (111 acres here).
- Crouse Reservoir · 111 acres · UT
- Lake of the Hill · 111 acres · MN
- Lily · 111 acres · MN
- Peary · 111 acres · MN
What to do with this record
- Assessment verdicts are cycle-based, not real-time. For fish-consumption decisions, your state advisory program is the binding source. Consumption status guide
- Impairment listings follow the Clean Water Act 303(d) process; a listing is a regulatory finding, not a closure notice. 303(d) explained
PlainLakes renders state assessment decisions and federal gauge observations without modification. It does not issue advisories.
Assessment decisions on this page are rendered directly from state Integrated Report records in EPA's ATTAINS system; gauge figures are daily-value observations from the USGS National Water Information System, no number is typed in by an editor. Overall status, use verdicts, and causes are the state's reported decisions for assessment unit FL2783D. Counts and percentiles are computed across all lake-type records PlainLakes ingests from ATTAINS. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-17. Primary sources: EPA ATTAINS and USGS National Water Information System.