New Jersey multi-water assessment unit · state assessment record
Gun Branch
The assessment record reported by New Jersey to EPA under Clean Water Act sections 303(d) and 305(b), filed in the 2022 reporting cycle.
- 10
- Acres of lake water
- Lake
- Water type
This waterbody in one line
Gun Branch, a multi-water assessment unit in New Jersey, was reported but not assessed in the state's most recent Integrated Report cycle (2022). By assessed acreage it sits among the smaller assessed lakes nationally (38,628 lakes with a filed area).
- Not Assessed
- overall status
- P19
- Assessed size nationally
The state agency files this as one assessment unit spanning 10.02 acres of lake water and 9.69 miles of stream and river. The verdicts and listed causes below are reported for the whole unit, not for the lake water alone. Assessment verdicts are the state agency's decisions as reported to EPA ATTAINS; PlainLakes renders them without modification.
Gun Branch 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: 10 acres, smaller than 81% of the 38,628 lake-type units carrying an area.
IR category 3 on Gun Branch
The Integrated Report category filed for Gun Branch 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, New Jersey carries 611 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Gun Branch 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 | Aquatic-life or related | Insufficient Information |
| Aquatic Life - Trout | Aquatic-life or related | Not Assessed |
| Fish Consumption | Fish-consumption or fishery | Insufficient Information |
| Primary Contact Recreation | Recreation | Insufficient Information |
| Public Water Supply | Drinking-water supply designation | Insufficient Information |
| Secondary Contact Recreation | Recreation | Not Assessed |
| Shellfish Harvesting | Fish-consumption or fishery | Not Assessed |
The record
Listed impairment causes
The state reported this multi-water assessment unit in its 2022 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 this co-filed unit covers
9.69 miles of stream and river co-filed on this unit
The state agency files this as one assessment unit spanning 10.02 acres of lake water and 9.69 miles of stream and river. The verdicts and listed causes below are reported for the whole unit, not for the lake water alone.
This page is about the lake water in the unit; counts and verdicts below cover the whole multi-water assessment unit. How multi-water units are filed.
Scale and rank
Gun Branch is one of 611 lake-type waterbodies reported to EPA from New Jersey. It is not among the 588 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 10 assessed acres it ranks 31,196th 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 31,195 lakes with a larger one.
What this record holds
New Jersey filed this multi-water assessment unit in its 2022 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 Gun Branch 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
10 Top 81% larger than 19% 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 Gun Branch. Hover or tap any bar for its full count and share.
In context
New Jersey context
ATTAINS carries 611 lake-type waterbodies in New Jersey, 583 assessed as not supporting at least one use and 21 fully supporting.
| Other large assessed lakes in New Jersey | Assessed acres |
|---|---|
| Wanaque Reservior (below Monks gage) Not Supporting | 2,599 |
| Lake Hopatcong Not Supporting | 2,583 |
| Prescott Brook / Round Valley Reservior Not Supporting | 2,297 |
| Merrill Creek Not Supporting | 1,298 |
| Wallkill R / Lake Mohawk(above Sparta Sta) Not Supporting | 975 |
| Wanaque R/Greenwood Lk(aboveMonks gage) Not Supporting | 881 |
Lakes near Gun Branch's assessed acres
Similar assessed acres
Nearest filed extents (10 acres here).
- Como · 10 acres · MN
- Kolding Dam · 10 acres · ND
- Lost · 10 acres · MN
- Ron · 10 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 NJ02040301160160-01. 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.