Texas reservoir · state assessment record
Fosdic Lake
From Fosdic Lake Dam to the reservoir headwaters in Oakland Lake Park in Tarrant County. Assessment decisions reported by Texas to EPA under Clean Water Act sections 303(d) and 305(b), last assessed in the 2024 reporting cycle.
- 6.72
- Assessed acres
- Reservoir
- Water type
This waterbody in one line
Fosdic Lake, a reservoir in Texas, is assessed as not supporting one or more designated uses, with one listed impairment cause in the state's most recent Integrated Report cycle (2024). By assessed acreage it sits among the smaller assessed lakes nationally (38,628 lakes with a filed area); its impairment list is among the longest nationally (one listed cause vs 23,610 assessed lakes). Fish consumption is assessed as not supporting.
- Not Supporting
- overall status
- P14
- Assessed size nationally
- P20
- Shorter cause list
- Not Supporting
- fish consumption
Assessment verdicts are the state agency's decisions as reported to EPA ATTAINS; PlainLakes renders them without modification.
A composite of this record's EPA ATTAINS designated-use verdicts, filed impairment count, and assessment currency, weighted and benchmarked against the national corpus of assessed active waterbodies. This is a water-quality standing, not a human-recreation or property-value judgment, and dimensions with no filed verdict drop out rather than count against the score.
Fosdic Lake against the ATTAINS register
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
What stands out first is how small the assessed unit is: 6.7 acres, smaller than 86% of the 38,628 lake-type units carrying an area.
Every filed use falls short
On the uses this filer ruled on, fish consumption, every determination is Not Supporting. That is a use-by-use reading of the filed record, not a single overall lake grade.
Fosdic Lake: Category 4A reading
Category 4A means a TMDL (or equivalent) is already approved for the impairment on Fosdic Lake. The remaining work is implementation and tracking, read the cleanup-standing and cause rows for what the state already committed to address.
Overall status: not supporting
The filer's overall status for Fosdic Lake is Not Supporting. That tile summarizes the assessment unit; the designated-use rows and cause list are the evidence behind it.
Typical cause-list length
1 listed cause is a middle-tercile list length among assessed lake-type units. Look to IR category and use outcomes for the distinctive reading.
According to the U.S. Environmental Protection Agency's ATTAINS program, Texas carries 489 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Fosdic Lake 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 Consumption Use | Fish-consumption or fishery | Not Supporting |
The record
Listed impairment causes
Causes the state listed as impairing designated uses of this reservoir, with the cycle each was first listed and the Clean Water Act action recorded against it.
| Cause | Affected uses | First listed | Cleanup standing |
|---|---|---|---|
| PCBs - Fish Consumption Advisory | Fish Consumption Use | 1998 | TMDL approved |
Probable sources named by the state
Each source below is listed under the cause the state filed it against, and carries the word the state filed with it — confirmed, or suspected.
- PCBs - Fish Consumption Advisory
- Non-Point Source (suspected) Upstream Source (suspected)
Texas also recorded the source of at least one listing here as unknown, including for PCBs - Fish Consumption Advisory.
Reading the record
Fosdic Lake: Category 4A reading
4A Category 4A: impaired, TMDL completed
Texas filed this assessment unit as Category 4A: impaired, with a pollutant-budget TMDL already completed under 303(d). The listing remains an impairment finding; the plan is on file rather than still awaiting write-up.
Scale and rank
Fosdic Lake is one of 489 lake-type waterbodies reported to EPA from Texas, and one of 323 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 6.72 assessed acres it ranks 33,384th 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 33,383 lakes with a larger one.
Open in the register
The state has not yet filed a definitive recreation verdict and a definitive aquatic-life verdict for this record; those fields populate when it reports them in a future Integrated Report cycle.
In context
Where Fosdic Lake 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
7 Top 86% larger than 14% 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
Listed causes vs waterbodies carrying a verdict
How many impairment causes U.S. waterbodies with a reported verdict carry
1 Longer than most more listed causes than 49% of 23,610 waterbodies carrying a verdict
named waterbodies carrying a verdict, 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 Fosdic Lake. Hover or tap any bar for its full count and share.
In context
Texas context
ATTAINS carries 489 lake-type waterbodies in Texas, 125 assessed as not supporting at least one use and 331 fully supporting. Among the 323 indexed units there, Fosdic Lake ranks 106th by listed-cause count (one listed cause) and 322nd by assessed size among the 323 with an area filed; it sits in the not-supporting set (125 statewide) . Its listed causes include PCBs - Fish Consumption Advisory, which also appears among Texas's most-filed impairment causes (led by Algae).
| Other large assessed lakes in Texas | Assessed acres |
|---|---|
| Lake Texoma Fully Supporting | 49,400 |
| Toledo Bend Reservoir Not Supporting | 41,046 |
| International Falcon Reservoir Fully Supporting | 36,817 |
| Sam Rayburn Reservoir Not Supporting | 28,238 |
| International Amistad Reservoir Fully Supporting | 21,328 |
| Lake Livingston Not Supporting | 18,238 |
Peers near Fosdic Lake's size or cause load
Similar assessed acres
Nearest filed extents (6.72 acres here).
- Archibald Tower Springs · 6.72 acres · WI
- Lyman · 6.72 acres · MN
- Swartz Lake · 6.72 acres · WI
- Bahr Lake · 6.71 acres · WI
Similar cause load
Nearest listed-cause counts (1 here). Peers already in the acreage column are omitted.
- Aaron · 1 causes · MN
- Aaron River Reservoir · 1 causes · MA
- Abbotts Creek (including Lexington-Thomasville Water Supply Reservoir at normal reservoir elevation, Tom-A-Lex Lake) · 1 causes · NC
- Abeniki Lake · 1 causes · NH
What to do with this record
- The fish-consumption use is assessed as not supporting. Before eating fish from this reservoir, check your state fish-advisory program for species-specific meal limits. 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 TX-0806A_01. 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.