Rigby WWTP
3930 E 500 N, Rigby, ID 83442 · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 0.68 MGD
- Design flow
- 0.53 MGD
- NPDES permit
- ID0020010
- Administratively continued
- Permit expires
- December 2021
- Population served
- 4,117
- CWNS 2022
Rigby WWTP is a publicly owned wastewater treatment works in Rigby, Jefferson County, Idaho treating an average of 0.68 million gallons per day against a permitted design capacity of 0.53 MGD, serving about 4,117 residents. It discharges under NPDES permit ID0020010 (administratively continued), which expires in December 2021, with 9 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2017.
Treatment technology
2 treatment structures and unit processes identified at Rigby WWTP.
Available with a free Klarifi account
See the full treatment train at Rigby WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 2
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 Rigby WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $500
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jan 2017
CITY OF RIGBY, IDAHO
Administrative order · CWA, NPDES Discharge without a Permit · Final Order No Penalty · Compliance actions $500
EPA's description of the case:
“The facility is discharging without a permit. Facility must submit a new application.”
Source: EPA ECHO, civil enforcement case 10-2004-0023.
Full case history with a free Klarifi account
Every action against Rigby WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Rigby WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Idaho
Ririe · 8 mi away
0.22 MGD
Roberts · 10 mi away
0.04 MGD
Rexburg · 11 mi away
3.22 MGD
Saint Anthony · 20 mi away
0.26 MGD
Shelley · 25 mi away
1.82 MGD
Firth · 30 mi away
0.04 MGD
Driggs · 39 mi away
0.37 MGD
Pocatello · 62 mi away
6.38 MGD
Rigby WWTP: 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 March 9, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms