other
WS - E - Sewer Rate Analysis
Page 1 of 2
Text read by the vision model; check the PDF for anything that matters.SEWER RATE ANALYSIS
City of Tiffin, Iowa
Proposed Funding: Iowa Finance Authority's SRF Loan Program. This program offers a 2% loan with a 20 year amortization
Project Description: Sewage Treatment Plant Improvements
<table>
<tr>
<th rowspan="2"> </th>
<th colspan="4">Proposed Rate Increases</th>
</tr>
<tr>
<th>Current Rates</th>
<th>Year 1<br>5 % Increase</th>
<th>Year 2<br>5 % Increase</th>
<th>Year 3<br>5 % Increase</th>
</tr>
<tr>
<td>Min. Bill Gallons</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
</tr>
<tr>
<td>Usage Rate per 1,000 Gallons</td>
<td>$4.75</td>
<td>$4.99</td>
<td>$5.24</td>
<td>$5.50</td>
</tr>
<tr>
<td>Base Rate</td>
<td>$19.50</td>
<td>$20.48</td>
<td>$21.50</td>
<td>$22.57</td>
</tr>
<tr>
<td>User Impacts</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>2,000</td>
<td>29.00</td>
<td>30.45</td>
<td>31.97</td>
<td>33.57</td>
</tr>
<tr>
<td>4,000</td>
<td>38.50</td>
<td>40.43</td>
<td>42.45</td>
<td>44.57</td>
</tr>
<tr>
<td>6,000</td>
<td>48.00</td>
<td>50.40</td>
<td>52.92</td>
<td>55.57</td>
</tr>
<tr>
<td>10,000</td>
<td>67.00</td>
<td>70.35</td>
<td>73.87</td>
<td>77.56</td>
</tr>
<tr>
<td>25,000</td>
<td>138.25</td>
<td>145.16</td>
<td>152.42</td>
<td>160.04</td>
</tr>
</table>
Key Assumptions
Sources
- sharepoint (WS - E - Sewer Rate Analysis.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.