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Hillcrest Storage Tank Replacement

Durable design, less susceptibility to leaks

To maintain safety at the Hillcrest water storage facility and improve its reliability, Denver Water is making major upgrades through work estimated to run through 2021.

hillcrest tank replacement

Tale of 3 Tanks

45 million

gallons total water storage


cubic yards of concrete per tank foundation


foundation's diameter in feet

Why it’s important

Denver Water developed the Hillcrest water storage facility in the early 1960s to replace several small, temporary pumping stations and improve the ability to reliably serve the burgeoning population of southeast Denver. Since then, the area’s population has continued to grow, placing increasing demand on the storage and pumping facilities on top of the wear and tear expected to come with age.

The major upgrades this project brings to the Hillcrest facility are an important part of Denver Water’s plan for continued reliable water service to the southeast Denver area.

How it affects our customers

We have made some great progress on-site over the past couple weeks. Please see the updates below as a reminder for what to expect over the next couple months, including concrete placements this fall. 

Construction update: June 17, 2019

Work activities at Hillcrest site

Construction Progress/Stockpile Update

Piping work on the Hillcrest site continues this month and is expected through the end of July. Removal of the earthen stockpiles has not occurred as originally planned. Stockpile removal and tank backfill has been delayed as a cautionary safety measure. During demolition of the existing concrete storage tank, asbestos boards were found along the old tank foundation. Work was halted and reported immediately to the Colorado Department of Public Health and Environment (CDPHE). Denver Water and MWH isolated and covered the area of concern according to CDPHE standards. A third-party contractor specializing in environmental remediation has been hired and is working with Denver Water and MWH to finalize and submit a plan to CDPHE for approval.

The backfill around the newly constructed tanks consists of a mixture of the earthen stockpiles, as well as the crushed concrete of the demolished tank. While the earthen stockpiles were not affected by the asbestos boards that were discovered, as a safety measure, backfill operations will resume after remediation is completed. The timeline for this work is unknown, but we will provide monthly updates as construction progresses.

Like other construction activities onsite, dust and noise are being monitored and dust mitigation is being used. We continue to appreciate your patience with these activities.

Construction hours at Hillcrest site

General work hours (outside of weekend concrete placements) are 7 a.m. to 6 p.m., Monday through Friday. Saturday work (with the same hours) will continue to be an option that our contractor, MWHC, will use when necessary to keep the project on schedule or when the work could condense the overall timeline.

We continue to make every effort to keep you updated on schedule and activity changes via Nextdoor and our email distribution list. If you would like to be added to the email update list, please email Gianna Lombardi or Mechelle Little.

Anticipated timeline

Pumping station replacement phase, 2018 through early 2020: Crews will replace the pumping equipment, which is outdated, and the pumping station's building.









Photos and renderings