Storm Lake WWTP
1234 630th St, Storm Lake, IA 50588 · Buena Vista County · Publicly Owned Treatment Works
- Average flow
- 2.45 MGD
- Design flow
- 8 MGD
- NPDES permit
- IA0032484
- Effective
- Permit expires
- October 2029
- Population served
- 11,156
- CWNS 2022
Storm Lake WWTP is a publicly owned wastewater treatment works in Storm Lake, Buena Vista County, Iowa treating an average of 2.45 million gallons per day against a permitted design capacity of 8 MGD, serving about 11,156 residents. It discharges under NPDES permit IA0032484 (effective), which expires in October 2029, with 3 recorded violations in the last three years.
Treatment technology
5 treatment structures and unit processes identified at Storm Lake WWTP.
Available with a free Klarifi account
See the full treatment train at Storm Lake WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
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 Storm Lake WWTP in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 2
- latest Apr 2023
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Storm Lake WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Industrial users and pretreatment
Industries that discharge process wastewater to Storm Lake WWTP, from the plant's pretreatment programme records.
- Industrial users
- 1
- on record
On record: Friesen Of Iowa (Storm Lake). Most users are in automotive, metal and equipment manufacturing.
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of Storm Lake WWTP. Free with a Klarifi account.
Capital improvement projects in Storm Lake
Storm Lake's capital improvement plan lists 55 water, sewer and wastewater line items worth $132M starting 2026–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Storm Lake →
| Project | Budget | Years |
|---|---|---|
| Water Plant Expansion Design | $102,913,000 | 2028–2030 |
| Jordan Well (New Well 25) | $5,616,000 | 2027–2028 |
| Well 15 Replacement (New Well 22) | $2,236,465 | 2026–2026 |
| Shallow Well (New Well 24) | $1,760,000 | 2028–2029 |
| Emerald Park LS Replacement | $1,440,000 | 2027–2028 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
15 verified contacts for Storm Lake WWTP, with validated emails and direct phone numbers.
Unlock 15 verified contacts (12 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Storm Lake WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Alta · 9 mi away
0.25 MGD
Schaller · 10 mi away
—
Early · 10 mi away
—
Galva · 14 mi away
0.04 MGD
Rembrandt · 15 mi away
—
Aurelia · 15 mi away
0.07 MGD
Sac City · 16 mi away
0.24 MGD
Albert City · 16 mi away
0.06 MGD
Storm Lake 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 11, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms