Pennsylvania reservoir · state assessment record
Middle Creek-02050306002157
Assessment decisions reported by Pennsylvania to EPA under Clean Water Act sections 303(d) and 305(b), last assessed in the 2026 reporting cycle.
- 319
- Assessed acres
- Lake / Reservoir / Pond
- Water type
This waterbody in one line
Middle Creek-02050306002157, a reservoir in Pennsylvania, is assessed as not supporting one or more designated uses, with 2 listed impairment causes in the state's most recent Integrated Report cycle (2026). By assessed acreage it sits in the upper quartile by assessed acreage nationally (38,628 lakes); its impairment list is among the longest nationally (2 listed causes vs 23,610 assessed lakes). Pennsylvania assesses trout stocking as not supported; it reported no verdict on aquatic life itself.
- Not Supporting
- overall status
- P87
- Assessed size nationally
- P10
- Shorter cause list
- Not Supporting
- aquatic-life or related
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.
Middle Creek-02050306002157 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: in-state cause rank
Inside Pennsylvania, cause-list rank is the local separator: Middle Creek-02050306002157 is 27 of 246 indexed units by listed-cause count, toward the top of that state's filed lists.
Every ruled-on use is not supporting
On the uses this filer ruled on, aquatic life, every determination is Not Supporting. That is a use-by-use reading of the filed record, not a single overall lake grade.
Middle Creek-02050306002157: Category 5, TMDL still owed
Category 5 is the Integrated Report band where a TMDL (or equivalent) is still expected for Middle Creek-02050306002157. Read the listed causes and any cleanup actions filed beside them before treating the overall status tile as a finished restoration story.
Large assessed unit
At 319.3 acres, Middle Creek-02050306002157 clears the upper tercile of assessed lake-type units with an area on file (5,110 still larger). Size comparisons use the portal's deduplicated lake ranking population, not raw ATTAINS row counts.
Longer than most cause lists
2 listed causes puts this unit above 80% of assessed lake-type records by list length. Treat that as a coding-and-sampling signal: states that split pollutants finely mint longer lists without proving worse water.
According to the U.S. Environmental Protection Agency's ATTAINS program, Pennsylvania carries 516 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Middle Creek-02050306002157 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 |
|---|---|---|
| Trout Stocking | Aquatic-life or related | 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 |
|---|---|---|---|
| Dissolved Oxygen | Trout Stocking | 2026 | TMDL priority: Medium |
| Eutrophication | Trout Stocking | 2026 | TMDL priority: High |
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.
- Dissolved Oxygen
- Agriculture (confirmed)
- Eutrophication
- Agriculture (confirmed)
Reading the record
Cleanup queue for Middle Creek-02050306002157
1 listed cause ranked High in the TMDL queue, still without a plan
Pennsylvania ranked Eutrophication high in its TMDL development queue, and no cleanup plan is on file for that listing yet. That queue rank is the state's own scheduling signal, not an EPA national rule.
A High ranking names a position in the state's plan-writing queue; it is not a measure of how impaired the water is. How listing and cleanup work.
Scale and rank
Middle Creek-02050306002157 is one of 516 lake-type waterbodies reported to EPA from Pennsylvania, and one of 246 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 319 assessed acres it ranks 5,111th 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 5,110 lakes with a larger one.
Still unfiled
The state has not yet filed a definitive fish-consumption verdict and a definitive recreation verdict for this record; those fields populate when it reports them in a future Integrated Report cycle.
In context
Where Middle Creek-02050306002157 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
319 Top 13% larger than 87% 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 Middle Creek-02050306002157. Hover or tap any bar for its full count and share.
In context
Pennsylvania context
ATTAINS carries 516 lake-type waterbodies in Pennsylvania, 135 assessed as not supporting at least one use and 381 fully supporting. Among the 246 indexed units there, Middle Creek-02050306002157 ranks 27th by listed-cause count (2 listed causes) and 44th by assessed size among the 246 with an area filed; it sits in the not-supporting set (135 statewide) . Its listed causes (Dissolved Oxygen and Eutrophication) sit outside Pennsylvania's top-five list, which is led by Mercury.
| Other large assessed lakes in Pennsylvania | Assessed acres |
|---|---|
| Pymatuning Reservoir-05030102001826 Not Supporting | 15,995 |
| Allegheny Reservoir-05010001002698 Not Supporting | 12,211 |
| Raystown Lake-02050303001006 Fully Supporting | 8,127 |
| Lake Clark-02050306012077 Fully Supporting | 8,117 |
| Lake Wallenpaupack-02040103001053 Not Supporting | 5,461 |
| Presque Isle Bay-04120101000933 Not Supporting | 3,655 |
Peers near Middle Creek-02050306002157's size or cause load
Similar assessed acres
Nearest filed extents (319 acres here).
- Leech (Shingobee Bay) · 319 acres · MN
- Frear · 319 acres · MN
- Davis · 319 acres · MN
- Big · 319 acres · MN
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 PA-LRP-02050306002157. 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.