A green logo with the text "GO PAPERLESS" in white and black. The letter "O" is formed by a circular arrow, symbolizing recycling.

To do our part in helping the environment, we are requesting all Niwot Sanitation customers enroll in paperless billing before January 1st, 2025. Please email admin@niwotsanitation.gov or call our office at 303-652-2525 to provide an email address to receive your statement.

Construction Update 02: Construction Begins at Niwot Sanitation


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Aerial image of a construction site with machinery, highlighting finished piers for rebar and the first slab pour for the oxidation ditch.

Since the Waste Water Treatment Improvement (WWTP) construction project began in June 2024, Rice Lake West and JVA, the construction and engineering firms hired to build the new sanitation plant, have excavated and demolished old buildings, poured concrete slabs, and removed old pipes. Rice Lake West and JVA have kept all essential buildings so routine treatment is not impacted. Our office remains open during normal hours - Monday through Friday from 9:00 AM to 3:00 PM.

Headworks dewatered and excavated, rebar completed

Aerial view of a construction site featuring a crane, showcasing the development of Niwot Sanitation's new Headworks building.

Aerial view of a construction site featuring a crane, showcasing the development of Niwot Sanitation's new Headworks building.

Aerial view of a construction site featuring a crane, showcasing the development of Niwot Sanitation's new Headworks building.

Aerial view of a construction site featuring a crane, showcasing the development of Niwot Sanitation's new Headworks building.

Above are a few pictures that show the construction of the new Headworks building. Niwot Sanitation’s new and improved Headworks will have pre-screening which will separate items such as wipes, rags, floss, grit, eggshells, and many other items that may impact our treatment process or cause damage to our pumps and other equipment.

Bypass for Main influent connected

Aerial image of a construction site showcasing a bypass pipe leading to the onsite pump station.

A large water treatment plant with a blue truck and frac tanks that manage debris for aeration basin treatment.

The first picture shows a bypass pipe that connects our Influent to our onsite pump station. 

The second picture shows a set of frac tanks which catch all debris from our Influent and discharge debris to our aeration basin for biological treatment.

Old Headworks building demolished

Aerial perspective of a construction site with a crane, where frac tanks are used to settle debris amid the demolishing of the old Headworks building.

Niwot Sanitation’s original Headworks building is now demolished. While the new Headworks building is being constructed, we are using frac tanks to settle debris such as rags, floss, rocks, and many other items that find themselves in our sewer mains.

New oxidation ditch excavated

Elevated view of a construction site with dirt and equipment, highlighting the cleared area for the upcoming oxidation ditch.

Aerial view of a construction site featuring a dirt pit, highlighting piers being drilled for a solid foundation of an oxidation ditch.

Aerial perspective of a construction site showcasing equipment, completed piers ready for rebar, and the initial slab pour.

The first picture shows the ground cleared of all shrubs, rocks and any other obstructions in preparation for the new oxidation ditch.
 

The second picture represents an example of piers being drilled and filled with concrete for a very strong and solid foundation for our new oxidation ditch. This oxidation ditch will be Niwot Sanitation’s main source of treatment to meet new and future EPA standards.

 

The third picture shows the finished piers ready for rebar as well as our first slab pour for the oxidation ditch.

 

What's next?

Our third Construction Update post will cover our secondary Clarifier and oxidation ditch rebar and pour. We will also show the leveling of a digester and dewatering building footprint.

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