New Jersey multi-water assessment unit · state assessment record

West Ck (above Rt 550)

Assessment decisions reported by New Jersey to EPA under Clean Water Act sections 303(d) and 305(b), last assessed in the 2022 reporting cycle.

8.87
Acres of lake water
Lake
Water type
View watchlist

This waterbody in one line

West Ck (above Rt 550), a multi-water assessment unit in New Jersey, is assessed as fully supporting its designated uses, with no impairment causes listed 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); its impairment list is shorter than on half of assessed lakes (0 listed causes). Aquatic life is assessed as fully supporting.

Fully Supporting
overall status
P17
Assessed size nationally
P51
Shorter cause list
Fully Supporting
aquatic life

The state agency files this as one assessment unit spanning 8.87 acres of lake water and 8.36 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.

A+
Water Quality Standing
96/100
West Ck (above Rt 550)

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.

RecreationA+
Meeting criteria
Swimming, boating, and other primary/secondary contact recreation
Drinking WaterA+
Meeting criteria
Suitability as a public drinking-water source
Aquatic LifeA+
Meeting criteria
Support for fish, invertebrates, and other aquatic organisms
Fish ConsumptionN/A
Not assessed
Safety of eating fish caught in this water
Impairment BurdenA+
0 causes
Filed pollutant/stressor causes on this record
Assessment CurrencyB+
2022
Reporting cycle this record’s verdicts were last decided in

Reading West Ck (above Rt 550)'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 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.

Every ruled-on use is fully supporting

The filed use determinations for 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.

Small assessed unit

8.9 acres puts West Ck (above Rt 550) 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.

IR category in the supporting band

EPA's Integrated Report category for West Ck (above Rt 550) is 2. 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, New Jersey carries 611 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to West Ck (above Rt 550) without modification. See our methodology for reporting-unit limits and gauge linking rules.

Reporting cycle
2022
New Jersey Integrated Report
Listing category
Category 2
Uses with verdicts
3
Definitive use assessments
Sources retrieved
2026-08-17
Portal-wide ATTAINS + NWIS pull

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 Fully Supporting
Primary Contact Recreation Recreation Fully Supporting
Public Water Supply Drinking-water supply designation Fully Supporting
Aquatic Life - Trout Aquatic-life or related Not Assessed
Fish Consumption Fish-consumption or fishery Insufficient Information
Secondary Contact Recreation Recreation Not Assessed
Shellfish Harvesting Fish-consumption or fishery Not Assessed

The record

Listed impairment causes

The state's reported assessment lists no impairment causes for this multi-water assessment unit.

Reading the record

What this co-filed unit covers

8.36 miles of stream and river co-filed on this unit

The state agency files this as one assessment unit spanning 8.87 acres of lake water and 8.36 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

West Ck (above Rt 550) is one of 611 lake-type waterbodies reported to EPA from New Jersey, and one of 588 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 8.87 assessed acres it ranks 32,027th 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 32,026 lakes with a larger one.

What this record holds

New Jersey 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. 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 West Ck (above Rt 550) 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

9 Top 83% larger than 17% 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 West Ck (above Rt 550). 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. Among the 588 indexed units there, West Ck (above Rt 550) ranks 586th by listed-cause count (no listed causes) and 405th by assessed size among the 588 with an area filed; it is one of the 21 fully-supporting indexed records in the state .

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

Peers near West Ck (above Rt 550)'s size or cause load

Similar assessed acres

Nearest filed extents (8.87 acres here).

Similar cause load

Nearest listed-cause counts (0 here). Peers already in the acreage column are omitted.

How peers are picked

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 NJ02040206210020-01. 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.