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White Slough WPCF

12751 N. Thornton Road, Lodi, CA 95242 · San Joaquin County · Publicly Owned Treatment Works

Average flow
—
Design flow
8.5 MGD
NPDES permit
CAC429451
Effective
Permit expires
March 2030
Population served
54,296
CWNS 2022

White Slough WPCF is a publicly owned wastewater treatment works in Lodi, San Joaquin County, California, serving about 54,296 residents. It discharges under NPDES permit CAC429451 (effective), which expires in March 2030, with 24 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2022.

Treatment technology

4 treatment structures and unit processes identified at White Slough WPCF.

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Compliance snapshot (last 3 years)

Total violations
24
Effluent violations
11

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

EPA enforcement history

Federal civil enforcement cases, compliance inspections and informal actions recorded for White Slough WPCF in EPA's ICIS system.

Formal actions
1
1 since FY2020
Penalties assessed
$4,500
all cases
EPA inspections
0
none on record

Latest case · Jan 2022

White Slough WPCT

Administrative order · CWA, Sewage Sludge Disposal · Final Order With Penalty · Penalty $4,500

Source: EPA ECHO, civil enforcement case 07-2021-0064.

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Every action against White Slough WPCF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

1 verified contact for White Slough WPCF, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at White Slough WPCF, plus the full compliance history and discharge data.

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White Slough WPCF: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026; facility record last updated September 26, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms


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