The City owns and operates two potable water treatment facilities that supply water to customers. These are the Betasso Water Treatment Facility (BWTF) rated at 40 million gallons per day (mgd) and the 63rd Water Treatment Facility (63rd WTF) rated at 16 mgd. The focus of this project is twofold: 1) replacing major power supply and electrical components on the campus and to improve their reliability and redundancy and 2) Repair and replacement (R&R) of the largest power consuming treatment process on campus called the high service pump station (HSPS). The HSPS was built in 1969 and is the sole source of supply to the distribution system from the 63rd WTF. Minor repairs have been implemented over time, but the station is now at its end of useful life. .

Budget: $27,400,000 total appropriation for project

2023 Budget: $7,500,000

Estimated Completion Date: Early 2024

Includes multiple Barker rehabilitation projects. The largest is the Barker Gravity line, a 12-mile long pipeline that delivers water from Barker Reservoir in Nederland to Kossler Reservoir, located up Flagstaff Road. The pipeline is over 100 years old and repair and/or replacement is critical to maintain water supply from the Middle Boulder Creek system to the city for domestic water demands. Project is scheduled for approximately 1-mile of pipeline segment rehabilitation annually for 12 years starting in 2017.

2023-28 Budget: $47,000,000

2023 Budget: $8,270,000

Estimated Completion Date: 2028

This replacement of the existing pipe will address several key issues including the following: This project will provide a new pipeline with a projected useful life of 75 to 100 years. It will address increased capacity needs to provide a greater level of service to the community by accommodating the estimated I&I contribution. Lastly, the new pipeline will be located further from Boulder Creek representing a less vulnerable condition from flooding.

2023-28 Budget: $54,000,000

2023 Budget: $8,300,000

Estimated Completion Date: Late 2024

The next major capital improvements project at the city’s Water Resource Recovery Facility (WRRF) will target phosphorus removal in preparation for the Regulation 85 total phosphorus limitation that will appear in the city’s updated State of Colorado Discharge Permit System (CDPS) Permit. The current permit expired in 2016 but has been administratively extended and is expected to be renewed in 2021, with an effective date in 2025. The city invested significantly over the last 15 years in nitrogen removal to meet current permit limits so, fortunately, the WRRF is already out-performing Regulation 85 nitrogen limitations.

2023-28 Budget: $19,000,000

2023 Budget: $19,000,000

Estimated Completion Date: 2024

A flood mitigation plan for Gregory Canyon Creek identified various improvements, primarily involving replacement of culverts to increase the conveyance capacity of the channel to carry a 10-year storm event. The project has completed the 60% design phase and is planned for construction in 2023.

2023-28 Budget: $21,450,000

2023 Budget $10,000,000

Estimated Completion Date: 2027

Thi project involves providing 100-yr flood protection to the community along the South Boulder Creek drainageway. The project is currently in the first of three phases. Phase I involves the proposed development of a flood detention facility upstream of highway US 36. The purpose of this detention facility is to provide flood protection for areas north of Hwy 36 including the area known as the West Valley. The project had completed preliminary design and is planned for construction in 2024. Utilities staff is also coordinating with numerous regulatory agencies, project stakeholders, and city departments.

2023-28 Budget: $66,000,000

2023 Budget: $3,000,000

Estimated Completion Date: 2025