Hwy 105, Humboldt, NE 68376 · Richardson County · Publicly Owned Treatment Works
Humboldt Wastewater Treatment Facility is a publicly owned wastewater treatment works in Humboldt, Richardson County, Nebraska treating an average of 0.31 million gallons per day against a permitted design capacity of 0.21 MGD, serving about 913 residents. It discharges under NPDES permit NE0031844 (effective), which expires in December 2026, with 178 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in August 2024.
One treatment structure or unit process identified at Humboldt Wastewater Treatment Facility.
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See the full treatment train at Humboldt Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Humboldt Wastewater Treatment Facility in EPA's ICIS system.
Latest case · Aug 2024
Humboldt NE Wastewater Treatment Facility CWA 309A AO for Compliance
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $25,000
EPA's description of the case:
“Failure to meet NPDES permit requirements.”
Source: EPA ECHO, civil enforcement case 07-2024-0122.
Full case history with a free Klarifi account
Every action against Humboldt Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Humboldt Wastewater Treatment Facility.
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Dawson · 6 mi away
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Table Rock · 8 mi away
0.02 MGD
Stella · 10 mi away
0.01 MGD
Verdon · 12 mi away
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Pawnee City · 12 mi away
0.15 MGD
Shubert · 15 mi away
0.0081 MGD
Johnson · 17 mi away
0.12 MGD
Auburn · 17 mi away
0.22 MGD
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 November 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms