Westminster · Water & utilities

Westminster Boulevard New Drinking Water Treatment Facility

New 14.7-million-gallon-per-day water treatment works replacing the ageing Semper facility.

Municipal physical construction or work-zone evidence; completion unverifiedEvidence: 2025–26 active construction status · Reviewed 31 October 2026

Latest verified development

2025–26 active construction status

City's strategic progress report confirms contractor mobilisation and groundbreaking of a new water-treatment facility.

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Project in numbers

14.7 MGDDocumented owner figure
Approx $200m estimateProject scale
2028 expected onlineMilestone

About the project

The treatment plant is distinct from its raw and finished connecting pipelines; future treatment startup is not verified.

Verified development history

  1. 24 September 2025

    Contractor mobilisation and municipal groundbreaking documented.

    Original evidence ↗
  2. 2026 construction programme

    Water-treatment project owner continues multi-year building programme.

    Original evidence ↗

What happens next

Check later owner site reports before advancing stage.

What remains uncertain

Reviewed 31 October 2026 against Westminster Colorado sources. Design, survey and scheduled work do not equal full construction start. Plant, source-water and finished-water scopes remain distinct. Editorial confidence is about source reliability, not probability.

Official maps, designs and site visuals

Original publisher links, not unlicensed photographs or invented project renderings.

Sources and documents

91% editorial confidence · Evidence assessment

Editorial confidence describes how well the cited records support this account. It is not a calibrated probability of project completion. Source event dates are distinct from research review dates.

Sources reviewed 31 October 2026.