Star WWTP
11511 W Tempe Ln, Star, ID 83669 · Ada County · Publicly Owned Treatment Works
- Average flow
- 1.52 MGD
- Design flow
- 1.85 MGD
- NPDES permit
- ID0023591
- Administratively continued
- Permit expires
- April 2020
- Population served
- —
- CWNS 2022
Star WWTP is a publicly owned wastewater treatment works in Star, Ada County, Idaho treating an average of 1.52 million gallons per day against a permitted design capacity of 1.85 MGD. It discharges under NPDES permit ID0023591 (administratively continued), which expires in April 2020, with 0 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in May 2015.
Treatment technology
One treatment structure or unit process identified at Star WWTP.
Available with a free Klarifi account
See the full treatment train at Star 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 Star WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $1,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · May 2015
STAR WATER AND SEWER DISTRICT
Administrative order · CWA, NPDES Discharge without a Permit · Final Order No Penalty · Compliance actions $1,000
EPA's description of the case:
“Pursuant to Section 309(a) of the Clean Water Act, EPA Region 10 has issued a compliance order to the Star Water and Sewer District (District) for violations of the District's NPDES permit (Permit…”
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Source: EPA ECHO, civil enforcement case 10-2011-0127.
Full case history with a free Klarifi account
Every action against Star WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Star WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Idaho
Nampa · 8 mi away
10.69 MGD
Garden City · 8 mi away
50.91 MGD
Meridian · 11 mi away
1.3 MGD
Emmett · 13 mi away
1.68 MGD
Notus · 16 mi away
0.06 MGD
Greenleaf · 16 mi away
0.06 MGD
Marsing · 18 mi away
—
Wilder · 20 mi away
0.11 MGD
Star 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 9, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms