Troy WWTP
Id-8, Troy, ID 83871 · Latah County · Publicly Owned Treatment Works
- Average flow
- 0.07 MGD
- Design flow
- 0.19 MGD
- NPDES permit
- ID0023604
- Effective
- Permit expires
- July 2027
- Population served
- 760
- CWNS 2022
Troy WWTP is a publicly owned wastewater treatment works in Troy, Latah County, Idaho treating an average of 0.07 million gallons per day against a permitted design capacity of 0.19 MGD, serving about 760 residents. It discharges under NPDES permit ID0023604 (effective), which expires in July 2027, with 26 recorded violations in the last three years. EPA has recorded 5 formal enforcement actions naming the plant, the latest in April 2022.
Treatment technology
2 treatment structures and unit processes identified at Troy WWTP.
Available with a free Klarifi account
See the full treatment train at Troy WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 26
- Effluent violations
- 26
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 Troy WWTP in EPA's ICIS system.
- Formal actions
- 5
- 0 since FY2020
- Penalties assessed
- $21,750
- all cases
- Compliance actions
- $53,622
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2022
CITY OF TROY WWTP, IDAHO - COMPLIANCE ORDER
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $22,522
EPA's description of the case:
“Pursuant to Section 309(a) of the Clean Water Act (CWA), EPA Region 10 has issued a compliance order by consent to the City of Troy (City) located in Troy, Idaho for violations of the CWA on March…”
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Source: EPA ECHO, civil enforcement case 10-2014-0006.
Full case history with a free Klarifi account
Every action against Troy WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Troy WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Troy WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Idaho
Kendrick · 10 mi away
0.03 MGD
Deary · 10 mi away
0.14 MGD
Juliaetta · 12 mi away
0.03 MGD
Moscow · 13 mi away
1.84 MGD
Princeton · 13 mi away
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Viola · 15 mi away
—
Potlatch · 15 mi away
0.16 MGD
Genesee · 16 mi away
0.3 MGD
Troy 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 February 10, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms