x Having issues? A prototype of a new version of Facility Explorer is available at https://facilityexplorer.iowadnr.gov/FacilityExplorer4/

Facility Details: Mason City Water Department

Street Photo
Street Map
Aerial Photo
Aerial Photo
Scale:
0
  • Name/Address:
  • Mason City Water Department
  • 339 13TH STREET NE
  • Mason City, IA 50401
  • Owner: CITY OF MASON CITY
  • State Facility ID: 310878396
  • Federal Facility ID: 110000521383
  • Location Supplement:
  • Location Comment: Typed Lat/long
  • Latitude: 43.16348
  • Longitude: -93.19702
  • Location Accuracy: 30 m (Fair)
  • Reference Point:
  • Collection Method: ADDRESS MATCHING-HOUSE NUMBER
  • Last Updated: 2/22/2026 3:27 AM
  • Collected By: EPAFRS

Aliases
Collapse
Program Name Start Date End Date
NPDES Wastewater Treatment Operating Permit Mason City, City Of-wtp-brine Waste 01/01/0001

Program Information
Collapse

Wastewater - NPDES Wastewater Treatment Operating Permit

EPA IDState IDPermit TypeClassPreTreatmentIssue DateExpiration DateStatusConstruction Permits
00773051750000MUNICIPAL-WTMINORNo 6/1/2024 5/31/2029 ACTIVETo Site

Emergency Response - Risk Management Plan



Industrial Codes
Collapse
No SIC Information for this site.
No NAICS Information for this site.

Compliance Links
Collapse


Enforcement Action
Collapse
No Enforcement Action Information for this site.

Features
Collapse

NPDES Wastewater Treatment Operating Permit Feature List

Name Type Accuracy Supplemental Location
FD-1 Wastewater Treatment 1500 m (Poor) ATTN: GREG LEE WATER SUPERINTENDENT
OF-1 Outfall 20 m (Good)