Filer WWTP
4030 N 2200 E, Filer, ID 83328 · Twin Falls County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.5 MGD
- NPDES permit
- ID0020061
- Administratively continued
- Permit expires
- October 2012
- Population served
- 2,845
- CWNS 2022
Filer WWTP is a publicly owned wastewater treatment works in Filer, Twin Falls County, Idaho, serving about 2,845 residents. It discharges under NPDES permit ID0020061 (administratively continued), which expires in October 2012, with 0 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in November 2007.
Treatment technology
One treatment structure or unit process identified at Filer WWTP.
Available with a free Klarifi account
See the full treatment train at Filer WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
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 Filer WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $3,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Nov 2007
CITY OF FILER, WASTEWATER TREATMENT FACILITY
Administrative order · CWA, NPDES Discharge without a Permit · Final Order No Penalty · Compliance actions $3,000
EPA's description of the case:
“Since August 31, 2004, Respondent has been discharging treated effluent without an effective NPDES permit in violation of Section 301(a) of the Act, 33 U.S.C. 1311(a).”
Source: EPA ECHO, civil enforcement case 10-2007-0093.
Full case history with a free Klarifi account
Every action against Filer WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Filer WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Idaho
Buhl · 9 mi away
0.29 MGD
Jerome · 11 mi away
3.59 MGD
Hansen · 16 mi away
0.07 MGD
Shoshone · 27 mi away
0.13 MGD
Richfield · 39 mi away
—
Heyburn · 43 mi away
0.71 MGD
Glenns Ferry · 43 mi away
—
Fairfield · 53 mi away
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Filer 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 September 14, 2026; facility record last updated November 6, 2025.