Green Mountain - Iowa Regional Utilities Assoc.
Garwin, IA 50632 · Tama County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.05 MGD
- NPDES permit
- IA0048236
- Effective
- Permit expires
- June 2031
- Population served
- —
- CWNS 2022
Green Mountain - Iowa Regional Utilities Assoc. is a publicly owned wastewater treatment plant in Garwin, Tama County, Iowa. It discharges under NPDES permit IA0048236 (effective), which expires in June 2031, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Green Mountain - Iowa Regional Utilities Assoc..
Available with a free Klarifi account
See the full treatment train at Green Mountain - Iowa Regional Utilities Assoc.: 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.
Key contacts
1 verified contact for Green Mountain - Iowa Regional Utilities Assoc., with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Green Mountain - Iowa Regional Utilities Assoc., plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Garwin · 1 mi away
—
Tama · 7 mi away
0.21 MGD
Le Grand · 7 mi away
0.08 MGD
Montour · 7 mi away
0.03 MGD
Gladbrook · 7 mi away
0.13 MGD
Toledo · 8 mi away
0.43 MGD
Tama · 11 mi away
0.39 MGD
Marshalltown · 11 mi away
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Green Mountain - Iowa Regional Utilities Assoc.: 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 March 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms