other
WS - D - Water System Exhibits
Page 1 of 4
Text from the PDF text layer; check the PDF for anything that matters. Print Date: 2/2/2023
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! Valve Closed
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Printed By: jnavarro, File: G:\13\13603\13603007\GIS\Tiffin GIS Map.aprx
Pressures Legend
44 PSI - 50 PSI
50 PSI - 60 PSI
60 PSI - 70 PSI
**Pressure coverage does not include mains
70 PSI - 80 PSI where Lidar Data does not reflect the areas the
80 PSI - 90 PSI mains are present.
90 PSI - 100 PSI Lidar Data is from 2021
PRV Assumption at 70 PSI 4 Inch diameter
Legend
Water Structures !
- Pipe Diameter 2023 Pressures Map
Data Sources:
Johnson County GIS Aerials
Tiffin GIS
3
Q Water Treatment Plant ^
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³
Water Tower
2"
4" Average Demand , Mid Tank, No Pump
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PRV Station
Well House 6"
! Valve
8" City of Tiffin
0 500 1,000 Feet 12"
Johnson County, Iowa
16"
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.