Kansas lake · state assessment record
Point of Rocks Lake (Moss Lake West)
Assessment decisions reported by Kansas to EPA under Clean Water Act sections 303(d) and 305(b), last assessed in the 2024 reporting cycle.
- 11
- Assessed acres
- Lake
- Water type
This waterbody in one line
Point of Rocks Lake (Moss Lake West), a lake in Kansas, is assessed as not supporting one or more designated uses, with 2 listed impairment causes 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 (2 listed causes vs 23,610 assessed lakes). Aquatic life is assessed as not supporting.
- Not Supporting
- overall status
- P21
- Assessed size nationally
- P10
- Shorter cause list
- Not 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.
Reading Point of Rocks Lake (Moss Lake West)'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: cause-list length
The standout filed fact is cause-list length: 2 listed impairment causes, a longer list than 80% of assessed lake-type units (n=23,610). List length tracks how states sample and code, not a severity score.
Every filed use falls short
On the uses this filer ruled on, recreation, aquatic life, every determination is Not Supporting. That is a use-by-use reading of the filed record, not a single overall lake grade.
Point of Rocks Lake (Moss Lake West): Category 5, TMDL still owed
Category 5 is the Integrated Report band where a TMDL (or equivalent) is still expected for Point of Rocks Lake (Moss Lake West). Read the listed causes and any cleanup actions filed beside them before treating the overall status tile as a finished restoration story.
Overall status: not supporting
The filer's overall status for Point of Rocks Lake (Moss Lake West) is Not Supporting. That tile summarizes the assessment unit; the designated-use rows and cause list are the evidence behind it.
Small assessed unit
11 acres puts Point of Rocks Lake (Moss Lake West) in the lower tercile by assessed area. Small units are often beaches, ponds, or segments, read the water-type and co-filed notes before comparing them to a multi-thousand-acre reservoir.
According to the U.S. Environmental Protection Agency's ATTAINS program, Kansas carries 328 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Point of Rocks Lake (Moss Lake West) 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 | Not Supporting |
| Domestic Water Supply | Drinking-water supply designation | Not Supporting |
| Primary Contact Recreation | Recreation | Not Supporting |
The record
Listed impairment causes
Causes the state listed as impairing designated uses of this lake, with the cycle each was first listed and the Clean Water Act action recorded against it.
| Cause | Affected uses | First listed | Cleanup standing |
|---|---|---|---|
| Sulfate | Domestic Water Supply | 2004 | TMDL priority: Low |
| Eutrophication | Aquatic Life Use, Primary Contact Recreation, Domestic Water Supply | 2008 | TMDL priority: Medium |
Reading the record
Where Point of Rocks Lake (Moss Lake West) sits among peers
24% of Kansas's lakes assessed this deeply also had no use supported
Kansas ruled definitively on 3 designated uses at Point of Rocks Lake (Moss Lake West) and found none of them supported. The dataset shows 21 Kansas lakes judged to that same depth.
Kansas's assessed lakes are most often judged on 4 uses; this one was judged on 3.
Computed share from EPA ATTAINS filed records, not an official EPA rating or safety grade.
| 1 | 2 | 3 | 4 | 5+ | |
|---|---|---|---|---|---|
| All supported | 7 | 8 | 15 | 53 | 0 |
| Mixed | Not possible | 3 | 1 | 222 | 1 |
| None supported | 1 | 0 | 5 (this record) | 2 | 0 |
Ringed cell: Point of Rocks Lake (Moss Lake West). Source: EPA ATTAINS, Reporting cycles 1987–2026.
Scale and rank
Point of Rocks Lake (Moss Lake West) is one of 328 lake-type waterbodies reported to EPA from Kansas, and one of 304 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 11 assessed acres it ranks 30,596th 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 30,595 lakes with a larger one.
Still unfiled
The state has not yet filed a definitive fish-consumption verdict for this record; that field populates when it reports it in a future Integrated Report cycle.
In context
Where Point of Rocks Lake (Moss Lake West) 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
11 Top 79% larger than 21% 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
2 Longer than most more listed causes than 80% 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 Point of Rocks Lake (Moss Lake West). Hover or tap any bar for its full count and share.
In context
Kansas context
ATTAINS carries 328 lake-type waterbodies in Kansas, 241 assessed as not supporting at least one use and 77 fully supporting. Among the 304 indexed units there, Point of Rocks Lake (Moss Lake West) ranks 67th by listed-cause count (2 listed causes) and 213th by assessed size among the 304 with an area filed; it sits in the not-supporting set (241 statewide) . Its listed causes include Sulfate and Eutrophication, which also appear among Kansas's most-filed impairment causes (led by Eutrophication).
| Other large assessed lakes in Kansas | Assessed acres |
|---|---|
| Milford Lake Not Supporting | 16,000 |
| Tuttle Creek Lake Not Supporting | 15,380 |
| Waconda Lake Not Supporting | 12,602 |
| Perry Lake Not Supporting | 12,200 |
| Cheney Lake Not Supporting | 9,550 |
| John Redmond Lake Not Supporting | 9,400 |
Peers near Point of Rocks Lake (Moss Lake West)'s size or cause load
Similar assessed acres
Nearest filed extents (11 acres here).
- Andover; · 11 acres · VT
- Baker Lake (Valentine NWR) · 11 acres · NE
- Barrett Pond · 11 acres · MA
- Beaver Dam Lake · 11 acres · IN
Similar cause load
Nearest listed-cause counts (2 here). Peers already in the acreage column are omitted.
- 12th St. Beach · 2 causes · IL
- 31st St. Beach · 2 causes · IL
- 49th St. Beach · 2 causes · IL
- 57th St. Beach · 2 causes · IL
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 KS-LM060501. 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.