Wilder WWTP
Huff Rd, Wilder, ID 83676 · Canyon County · Publicly Owned Treatment Works
- Average flow
- 0.08 MGD
- Design flow
- 0.12 MGD
- NPDES permit
- ID0020265
- Administratively continued
- Permit expires
- May 2010
- Population served
- 1,597
- CWNS 2022
Wilder WWTP is a publicly owned wastewater treatment works in Wilder, Canyon County, Idaho treating an average of 0.08 million gallons per day against a permitted design capacity of 0.12 MGD, serving about 1,597 residents. It discharges under NPDES permit ID0020265 (administratively continued), which expires in May 2010, with 8 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in October 2017.
Treatment technology
2 treatment structures and unit processes identified at Wilder WWTP.
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See the full treatment train at Wilder WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 8
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 Wilder WWTP in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Penalties assessed
- $12,000
- all cases
- Compliance actions
- $2.1M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Oct 2017
CITY OF WILDER WWTP, IDAHO
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $8,900 · Compliance actions $3,600
EPA's description of the case:
“On September 18, 2017, Region 10 filed a consent agreement and final order resolving violations of the Clean Water Act by the City of Wilder, located in Wilder, Idaho. Respondent, which operates a…”
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Source: EPA ECHO, civil enforcement case 10-2017-0132.
Full case history with a free Klarifi account
Every action against Wilder WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Wilder WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Wilder WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Idaho
Greenleaf · 4 mi away
—
Homedale · 4 mi away
0.5 MGD
Notus · 6 mi away
—
Parma · 8 mi away
0.11 MGD
Marsing · 10 mi away
—
Nampa · 17 mi away
—
Star · 20 mi away
1.58 MGD
New Plymouth · 22 mi away
—
Wilder 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 February 12, 2025.