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Water Reuse

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IRWD CATS

Concentrate Treatment System(CATS) Project

The project treats the concentrate from the Deep Aquifer Treatments System (DATS) designed to treat groundwater high in color (>200…

WC RO Exp

Scottsdale Water Campus RO System Expansion

In 2001, the RO system was expanded by 3.4 mgd to 11.9 mgd of RO product water capacity. The project…

Scottsdale WC Ph4

Scottsdale Water Campus – Phase 4 Expansion

The project includes the expansion of the microfiltration system to 33 mgd and the RO system to 20 mgd. The…

Scottsdale WC Ph3

Scottsdale Water Campus – Phase 3 Expansion

In 2006, the Water Reclamation plant and membrane treatment plant was expanded. The project included a study to increase capacity…

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SPI ENGINEERING NEWS

  • SPI acquired by Brown and Caldwell to advance its water and wastewater treatment solutions June 30, 2025

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  • 277 Rancheros Dr., Suite 370, San Marcos, CA 92069
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