Pierce WWTP
13 Fromelt Rd, Pierce, ID 83546 · Clearwater County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- 0.3 MGD
- NPDES permit
- ID0020206
- Administratively continued
- Permit expires
- May 2023
- Population served
- 501
- CWNS 2022
Pierce WWTP is a publicly owned wastewater treatment works in Pierce, Clearwater County, Idaho treating an average of 0.17 million gallons per day against a permitted design capacity of 0.3 MGD, serving about 501 residents. It discharges under NPDES permit ID0020206 (administratively continued), which expires in May 2023, with 1 recorded violation in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in July 2024.
Treatment technology
Treatment structures and unit processes at Pierce WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
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 Pierce WWTP in EPA's ICIS system.
- Formal actions
- 3
- 1 since FY2020
- Penalties assessed
- $6,456
- all cases
- Compliance actions
- $23,134
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jul 2024
CITY OF PIERCE, ID0020206, 402
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $1,656
EPA's description of the case:
“On July 30, 2024, Region 10 filed an expedited settlement agreement resolving CWA violations at the City of Pierce's wastewater treatment plant located in Pierce, Idaho. Alleged violations included…”
Unlock EPA's full description by creating a free account on Klarifi. Create a free account →
Source: EPA ECHO, civil enforcement case 10-2024-0091.
Full case history with a free Klarifi account
Every action against Pierce WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Pierce WWTP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Idaho
Weippe · 10 mi away
0.27 MGD
Kamiah · 21 mi away
0.16 MGD
Orofino · 25 mi away
0.02 MGD
Orofino · 26 mi away
0.28 MGD
Kooskia · 26 mi away
—
Elk River · 27 mi away
0.06 MGD
Nezperce · 27 mi away
0.008 MGD
Craigmont · 36 mi away
0.3 MGD
Pierce 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 August 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms