other
WS - D - Water System Exhibits
Page 2 of 4
Text from the PDF text layer; check the PDF for anything that matters. Print Date: 2/2/2023
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Printed By: jnavarro, File: G:\13\13603\13603007\GIS\Tiffin GIS Map.aprx
Available Fire Flow
(GPM)
296 GPM - 500 GPM
500 GPM - 1,000 GPM
1,000 GPM - 1,500 GPM
**Fire Flow coverage does not include mains
1,500 GPM - 3,000 GPM
where Lidar Data does not reflect the areas the
3,000 GPM - 4,500 GPM
mains are present.
4,500 GPM - 6,000 GPM
6,000 GPM - 7,500 GPM
Lidar Data is from 2021
7,500 GPM - 7,800 GPM
PRV Assumption at 70 PSI 4 Inch diameter
Legend
Data Sources:
Water Structures 2023 Fire Flow Map
Johnson County GIS Aerials
Tiffin GIS
3
Q Water Treatment Plant
Average Demand , Mid Tank, No Pump
Well House
City of Tiffin
0 500 1,000 Feet Johnson County, Iowa
Sources
- sharepoint (WS - D - Water System Exhibits.pdf) — where it was found ↗ first seen Oct 12, 2026
Data last updated October 15, 2026. Built from the archive's documents; see how the data is built.