FY2024 Proposed Budget

Capital Improvement Plan 2023-2027 City of Iowa City, Iowa

2023 2027 thru

Department PUBLIC WORKS

Contact Jonathan Durst

Type Multi-Phase

W3321

Project #

Useful Life 10 years

Project Name Treatment Technology Study

Category Water Operations

Priority Essential (2)

MATCH % NONE GRANTEE NONE

TIF DISTRICT None PLAN None

Status Active

Description An engineering study of dissolved nutrient removal from source water (nitrates, polyfluoroalkyl compounds, mycrositins, etc...), the long-term financial and environmental sustainability of lime softening, and filter system valving and build-out based on the study results. Total Project Cost: $150,000

Justification Regulations on dissolved ions in source and finished water are changing with federal administrations and increasing evidence of chemcial toxicity which will result in a need to have treatment technologies capable of ionic removal. Further quicklime and lime solids management costs have continued to increase yearly and a cost/benefite analysis of lime softening is warranted while investigating treatment technologies. The filters may need modification to accommodate new technologies. This is a study and will inform future CIP, including five projects on the unfunded list - Nutrient Removal, WTP Filter #6 Buildout, Water Plant Softener Improvements, Soda Ash Replacement, and Lime Lagoon Outlet Structure Modifications.

Expenditures

Total

2023

2024

2025

2026

2027

150,000 150,000

150,000 150,000

PLANNING/DESIGN

Total

Funding Sources

Total

2023

2024

2025

2026

2027

150,000 150,000

150,000 150,000

WATER FUND

Total

Budget Impact/Other The impact on the operating budget will be negligible.

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