Main St & Sunshine St, Holy Cross, IA 52053 · Dubuque County · Publicly Owned Treatment Works
Holy Cross City Of STP is a publicly owned wastewater treatment works in Holy Cross, Dubuque County, Iowa, serving about 356 residents. It discharges under NPDES permit IA0025992 (effective), which expires in July 2030, with 1 recorded violation in the last three years.
One treatment structure or unit process identified at Holy Cross City Of STP.
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See the full treatment train at Holy Cross City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
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Luxemburg · 4 mi away
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Durango · 7 mi away
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New Vienna · 8 mi away
0.02 MGD
Farley · 11 mi away
0.24 MGD
Sherrill · 11 mi away
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Dyersville · 11 mi away
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Dyersville · 12 mi away
0.55 MGD
Epworth · 12 mi away
0.13 MGD
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 · Filter press · FOG · all terms