Texas reservoir · state assessment record
Ray Roberts Lake (3,344 acres)
Assessment decisions reported by Texas to EPA under Clean Water Act sections 303(d) and 305(b), last assessed in the 2024 reporting cycle.
- 3,344
- Assessed acres
- Reservoir
- Water type
This waterbody in one line
Ray Roberts Lake, a reservoir in Texas, is assessed as fully supporting its designated uses, with no impairment causes listed in the state's most recent Integrated Report cycle (2024). By assessed acreage it sits among the largest 5% by assessed acreage nationally (38,628 lakes); its impairment list is shorter than on half of assessed lakes (0 listed causes). Aquatic life is assessed as fully supporting. Fish consumption is assessed as fully supporting.
- Fully Supporting
- overall status
- P98
- Assessed size nationally
- P51
- Shorter cause list
- Fully Supporting
- aquatic life
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.
How Ray Roberts Lake reads against the filed 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: cause-list length
The standout filed fact is a short cause list: 0 causes, shorter than 51% of assessed lake-type units. A short list can mean a focused impairment, or a shallow assessment.
Large assessed unit
At 3,344 acres, Ray Roberts Lake clears the upper tercile of assessed lake-type units with an area on file (904 still larger). Size comparisons use the portal's deduplicated lake ranking population, not raw ATTAINS row counts.
Every ruled-on use is fully supporting
The filed use determinations for fish consumption, recreation, aquatic life are all Fully Supporting. Where an overall IR category still flags the unit, look at the cause list and report standing rather than treating the use row as empty.
IR category in the supporting band
EPA's Integrated Report category for Ray Roberts Lake is 1. In ATTAINS that band means the assessed uses are supporting (or supporting with other waters in the unit), so the narrative weight shifts to how deep the assessment went and whether monitoring is current, not to a restoration plan.
Overall status: fully supporting
Overall status is Fully Supporting. If an IR category or cause row still appears, it usually reflects a prior listing path or a use the overall rollup does not collapse, read those sections rather than stopping at the tile.
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 Ray Roberts 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 |
|---|---|---|
| Aquatic Life Use | Aquatic-life or related | Fully Supporting |
| Domestic Water Supply - Public Water Supply | Drinking-water supply designation | Fully Supporting |
| Fish Consumption Use | Fish-consumption or fishery | Fully Supporting |
| General Use | Other | Fully Supporting |
| Recreation Use | Recreation | Fully Supporting |
The record
Listed impairment causes
The state's reported assessment lists no impairment causes for this reservoir.
Reading the record
Ray Roberts Lake: Category 1 reading
1 Category 1: all designated uses supported
Texas filed this assessment unit as Category 1: every designated use assessed here was reported as supported. That is the filer's Integrated Report classification, not a PlainLakes score.
Scale and rank
Ray Roberts 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 3,344 assessed acres it ranks 905th 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 904 lakes with a larger one.
What this record holds
Texas completed an assessment here and listed no impairment cause, so the record holds a verdict and its supporting use rows but no pollutant to track over time.
In context
Where Ray Roberts 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
3,344 Top 2% larger than 98% 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
0 Among the shortest cause lists fewer listed causes than 51% 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 Ray Roberts 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, Ray Roberts Lake ranks 170th by listed-cause count (no listed causes) and 110th by assessed size among the 323 with an area filed; it is one of the 331 fully-supporting indexed records in the state .
| 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 Ray Roberts Lake's size or cause load
Similar assessed acres
Nearest filed extents (3,344 acres here).
- Starvation Reservoir · 3,351 acres · UT
- Grand Manan Channel · 3,332 acres · ME
- Lake Monona · 3,359 acres · WI
- Lake Lucero (North) · 3,326 acres · NM
Similar cause load
Nearest listed-cause counts (0 here). Peers already in the acreage column are omitted.
- 31st Street Harbor · 0 causes · IL
- 42nd Avenue East Beach · 0 causes · MN
- 59th Street Harbor · 0 causes · IL
- 657 Dunleavy (Beach) · 0 causes · MI
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 TX-0840_06. 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.