Providing quality structural engineering services.

Plum Creek Wastewater Treatment Plant No. 1 Phase I expansion & Improvements

Project Information: $30M expansion of existing treatment plant, increasing capacity from 1.45 mgd to 3.55 mgd. New structures include 3- 3.4M gallon oxidation ditches, selector basins, a 20 ft x 20 ft utility corridor beneath a service road, 3- 85 foot diameter clarifiers, a blower building, a centrifuge building, a filter building, a UV disinfection building and a maintenance building. Modifications and additions include conversion of existing aerobic digester basins to include a pump station, storage facility and walkway bridge. Also included are structural modifications to a headworks building and an addition to an administration building.

Owner: Plum Creek Wastewater Authority, Town of Castle Rock, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

ENVIRONMENTAL PROJECTS:

Copper Mountain Wastewater Treatment Plant Expansion

Owner: Copper Mountain Consolidated Metropolitan District, Summit County, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Squaw Creek Wastewater Treatment Plant Expansion

Project Information: $16M expansion of existing treatment plant, increasing capacity from 1.2 mgd to 2.95 mgd and upgrading processes in order to meet stricter effluent standards. New structures include septage receiving and headworks building, primary clarifiers, odor control building, secondary clarifiers (2) building, solids processing and ATAD building and an administration building. Also included are structural modifications to existing aeration basins, one of which houses a new UV disinfection building.

Owner: Eagle River Water and Sanitation District, Edwards, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $7.0M expansion of existing treatment plant, increasing capacity from 0.7 mgd to 1.6 mgd. New structures include a filter building with 3- below-grade flow equalization tanks totaling 500,000 gallons and a centrifuge building. Also included are structural modifications to existing aerobic digesters to support the addition of a precast concrete double-tee roof and the expansion of an office/laboratory building. Additionally, the design accounts for forces induced by a potential avalanche occurrence at an adjacent mountainside.

Woodmoor South Filter Plant Expansion

Owner: Woodmoor Water and Sanitation District No. 1, Monument, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $3.1M expansion of existing water treatment plant. The expansion is a single structure which includes below-grade flow equalization, backwash and clearwell tanks totaling 500,000 gallons.

Pueblo West Wastewater Treatment Plant Expansion

Owner: Pueblo West Metropolitan District, Pueblo, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $3.2M expansion of existing treatment plant, increasing capacity from 0.6 mgd to 1.75 mgd. New structures include an operations building, 2- 50 foot diameter clarifiers, a headworks building, a flow splitter box and sampling platforms at the aeration basin lagoons.

Three Lakes Wastewater Treatment Plant Expansion

Owner: Three Lakes Water & Sanitation District, Grand Lake, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $8.1M expansion of existing treatment plant, increasing capacity 4.5 mgd. The new structure is a combined operations building with SBR, digester, storage, holding and flow equalization tanks totaling 2.5M gallons. The new structure also contains a headworks area, a UV disinfection room and office, storage and mechanical/electrical space.

careers

home

contact

projects

Return to projects page.

St. Vrain Wastewater Treatment Plant Expansion

Owner: St. Vrain Sanitation District, Longmont, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $6.6M expansion of existing treatment plant, increasing capacity from 0.5 mgd to 3.0 mgd. New structures include an operations building, a 50 foot diameter clarifier, a headworks building, a flow splitter box and a sampling platform at the aeration basin lagoon.

Tri-Lakes Wastewater Treatment Plant Expansion

Owner: Tri-Lakes Joint Use Committee, Monument, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $2.5M expansion of existing treatment plant, increasing capacity from 2.8 mgd to 4.2 mgd. New structures include a below grade pump gallery, a 50 foot diameter clarifier, a UV disinfection building over an existing chlorine contact chamber and a sampling platform at the aeration basin lagoon.

City of Louisville Wastewater Treatment Plant Expansion

Owner: City of Louisville, Colorado Environmental Engineer: Rothberg, Tamburini & Winsor, Inc.

Project Information: $2.8M expansion of treatment facility, increasing capacity to 4.2 mgd and upgrading processes to meet stricter effluent standards. New structures include RAS/WAS building with a below grade pump gallery and an 80 foot diameter clarifier. A new effluent trough between circular walls of a clarifier and aeration basin was designed and existing post-tensioned concrete walls were checked for new pipe penetrations at the outlet of the effluent trough. In addition, modifications were made to an existing chlorine contact basin to house a new UV disinfection system.

Below is a representative sample of environmental projects that Repella Consulting Engineers has recently completed.

Repella Consulting Engineers has a proven history of providing quality structural engineering services for environmental structures. Our engineers are challenged and equipped to think beyond the codes and design methods associated with traditional building design and construction. We are well versed with the applicable standards of the American Concrete Institute and Portland Cement Association, among others, related to the design and construction of environmental structures. We also employ the latest technology in structural analysis software, all of which ensures that both strength and serviceability are acheived in quality and long-lasting structures. Our structural design services for environmental projects have included a wide variety of facilities. These include process facilities,

clarifiers, oxidation ditches, tanks, pump stations and buildings for office, maintenance and laboratory space, among many others. We have provided structural designs for new/expanded facilities and modifications to existing facilities and our designs have employed precast/prestressed concrete, cast-in-place concrete, structural steel and masonry. As in all of our projects, we pride ourselves in the high level of service that we provide to the owner, design team and contractor through partnership with each in order to ensure that a quality design and smooth project is acheived.