Groundwater

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Breadcrumb: Service Area Summaries > Public Works > Water Bureau > Groundwater

City of Portland Fiscal Year 2026-27 Proposed Budget Public Works > Water Bureau > Groundwater Groundwater Budget Revenues by Fund 2023-24 Actuals 2024-25 Actuals 2025-26 Revised Budget 2026-27 Proposed External Revenues $3,045 ($955) $0 $9,414,789 Water Construction $0 $0 $0 $4,735,554 Fund Water Fund $3,045 ($955) $0 $4,679,235 Internal Revenues $0 $0 $0 $0 Water Fund $0 $0 $0 $0 Grand Total $3,045 ($955) $0 $9,414,789 Program Expenses by Major Object Program expenses only include personnel, internal materials and services, external materials and services, and capital. 2023-24 Actuals 2024-25 Actuals 2025-26 Revised Budget 2026-27 Proposed Capital Outlay $835,916 $801,241 $1,780,000 $4,411,585 External Materials and $2,385,904 $1,731,945 $2,083,189 $2,285,530 Services Internal Materials and $571,732 $467,597 $374,522 $296,288 Services Personnel $1,791,580 $1,526,116 $2,247,404 $2,381,816 Grand Total $5,585,132 $4,526,898 $6,485,115 $9,375,219 Program Description and Goals The Groundwater Program contains the Water Bureau's efforts to protect and maintain the infrastructure and natural resources that enable Portland to reliably draw water from the Columbia South Shore Well Field (CSSWF) as a supplemental and emergency backup supply source. The City has supplied drinking water from the CSSWF since 1984. The well field is used as a supplemental supply when necessary and as an emergency backup supply when the Bull Run supply is temporarily unavailable (due to major storms, wildfire, or landslides, for example). 972

City of Portland Fiscal Year 2026-27 Proposed Budget Wells in the CSSWF draw from three regional aquifers along the south shore of the Columbia River in Portland, Fairview, and Gresham. The City has an Oregon Department of Environmental Quality- certified Wellhead Protection Program for the groundwater resource to prevent chemical spills that could seep into the ground and adversely affect groundwater quality. The Groundwater system is a critical supply and climate resilience tool as it serves as a secondary and backup supply source to Bull Run during storm, wildfire, landslide and other outages which can be amplified by climate change. The Groundwater supply also provides supply augmentation when Bull Run experiences conditions of supply stress exacerbated by climate change – early reservoir drawdowns, low summer streamflows, drought, and warm water temperatures. Groundwater supply reliability is continuously monitored and evaluated through the bureau's seasonal supply planning and supply system and adaptive planning efforts. Services Groundwater Monitoring Groundwater Operations & Maintenance Groundwater Protection Well Improvement Equity Impacts Water quality issues disproportionately affect vulnerable populations, including low-income households and people with medical conditions who may lack access to costly clean water alternatives. A major goal of the Groundwater program is to protect water quality and increase the resilience of the entire water supply system. The program includes significant education outreach for business owners and residents in or near the well field. Staff have expanded outreach to underserved communities, and education events increasingly draw more diverse participants. Program materials are translated into Spanish, Chinese, Russian, and Vietnamese to ensure language accessibility. Changes to Program There are no significant changes to this program in FY 2026-27. 973

Parent: Water Bureau · PDF: pp. 972-973 ↗