Friday, 22. February 2019, Cal Poly Pomona, SARBS SYP - Cal Poly Pomona Water Treatment Plant Tour

from 22. February 2019 - 10:00 till 13:30

Cal Poly Pomona

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Event description
The Santa River Basin Section (SARBS) local section of California Water Environment Association (CWEA) invites students, young professionals, and anyone interested to join us on a tour of Cal Poly Pomona's Water Treatment Plant.
Event Timeline 

10:00 AM - 11:00 AM

Meet in Irvine and carpool to Cal Poly Pomona

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11:00 AM – 12:30 PM

Treatment Plant Tour

12:30 PM – 1:30 PM

Carpool back to Irvine*

*The carpool will be organized via email the week of the event.

All guests are required to wear closed toed and flat shoes.
The tour is limited to 20 people. RSVP now to reserve your spot!
Questions? Contact Roxanne at
About the Facility:
Cal Poly Pomona’s Water Treatment Plant construction was completed in 2014 and initial testing and start up at the beginning of 2015.  The Water Treatment Plant (WTP) uses Reverse Osmosis (RO) to treat impacted ground water and remove constituents such as Nitrates and Perchlorates.  The source of water to the plant is a 420 GPM well that provides raw water to the WTP.  Some raw water is bypassed and used to “remineralize” product water from the treatment process.  The WTP has 2 Skids, each with 5 Pressure Vessels that treat up to 145 GPM of raw water to make 110 GPM of permeate water per skid.  As part of the process, brine water is generated and piped to an Industrial Brine line.  Bypassed water and permeate water are combined in a stream and sent to a stripping tower to remove unwanted gases.  The combined stream is then collected in a clearwell to be pumped and have pH adjustment and disinfection provided to produce potable effluent water. The production can yield 330 GPM to make 0.48 MGD. 
Aside from producing treated water, the plant can allow for Well water to be blended with purchased imported water from MWD to produce a potable blend.  The potable blend is used when the demand outpaces the production of treated water from the RO treatment method.  The Well to MWD flow ratios are then dictated by the concentrations of Nitrates and Perchlorates in the Well water. 
Currently, Cal Poly Pomona is the only school in the CSU system that is regulated by the Division of Drinking Water as a Public Water System with the ability to produce its own potable water supply.  The WTP and domestic water system is rated as a D4 and T3 system.  Cal Poly obtained the revised permit to produce water on April 2017.  Since obtaining our permit, the plant has produced a total of 268 AC-ft of potable treated water.  Future plans, include developing another well to provide additional raw water to treat and increase the treatment capacity at the WTP.    
  Learn about SARBS: 

SARBS SYP - Cal Poly Pomona Water Treatment Plant Tour, Cal Poly Pomona event

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