California reservoir · state assessment record

Lake Wohlford (San Diego County)

The assessment record reported by California to EPA under Clean Water Act sections 303(d) and 305(b), filed in the 2020 reporting cycle.

203
Assessed acres
Lake / Reservoir / Pond
Water type
View watchlist

This waterbody in one line

Lake Wohlford (San Diego County), a reservoir in California, was reported but not assessed in the state's most recent Integrated Report cycle (2020). By assessed acreage it sits in the upper quartile by assessed acreage nationally (38,628 lakes).

Not Assessed
overall status
P82
Assessed size nationally

Assessment verdicts are the state agency's decisions as reported to EPA ATTAINS; PlainLakes renders them without modification.

Reading Lake Wohlford (San Diego County)'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: assessed size

The number that most separates Lake Wohlford (San Diego County) nationally is assessed size: 202.9 acres, larger than 82% of the 38,628 lake-type units with an area on file.

IR category 3 on Lake Wohlford (San Diego County)

The Integrated Report category filed for Lake Wohlford (San Diego County) 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, California carries 607 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Lake Wohlford (San Diego County) without modification. See our methodology for reporting-unit limits and gauge linking rules.

Limited-coverage record. The reported record for this reservoir currently lacks a definitive fish-consumption verdict, a definitive recreation verdict, a definitive aquatic-life verdict, among other dimensions. It is shown for completeness; the richer records for California are on the state page.
Reporting cycle
2020
California Integrated Report
Listing category
Category 3
Uses with verdicts
0
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
Cold Freshwater Habitat Aquatic-life or related Insufficient Information
Commercial and Sport Fishing Fish-consumption or fishery Insufficient Information
Warm Freshwater Habitat Aquatic-life or related Insufficient Information
Wildlife Habitat Other Insufficient Information

The record

Listed impairment causes

The state reported this reservoir in its 2020 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 Lake Wohlford (San Diego County)'s record holds

Scale and rank

Lake Wohlford (San Diego County) is one of 607 lake-type waterbodies reported to EPA from California. It is not among the 195 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 203 assessed acres it ranks 7,129th 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 7,128 lakes with a larger one.

What this record holds

California filed this reservoir in its 2020 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 Lake Wohlford (San Diego County) 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

203 Top 18% larger than 82% 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 Lake Wohlford (San Diego County). Hover or tap any bar for its full count and share.

In context

California context

ATTAINS carries 607 lake-type waterbodies in California, 202 assessed as not supporting at least one use and 22 fully supporting.

Other large assessed lakes in California Assessed acres
Salton Sea Not Supporting 233,045
Tahoe, Lake Not Supporting 84,092
Goose Lake (Modoc County) Not reported 62,385
Honey Lake Not Supporting 55,526
Klamath River HU, Tule Lake and Lower Klamath Lake National Wildlife Refuge Not Supporting 48,791
Mono Lake Not Supporting 45,299

Lakes near Lake Wohlford (San Diego County)'s assessed acres

Similar assessed acres

Nearest filed extents (203 acres here).

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 CAL9046200020201103042359. 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.