Contaminant Removal Case Studies and White Papers

  1. Upgrading From Gas Chlorine To On-Site Hypochlorite Generation To Improve Safety And System Resilience
    9/20/2018

    By replacing gas chlorine with on-site hypochlorite generation, Nashville was able to improve the safety and longevity of its water plants to accommodate the growth of the “Heart of Country Music” far into the future. At a recent water conference, Glen Doss, Treatment Plant Manager stated, “In 2016, the last gas chlorine railcar left to large applause.” 

  2. Midlothian, TX, Expands Water Treatment Plant With A Safe, Reliable Disinfection System
    7/24/2018

    When the City of Midlothian, Texas, was ready to expand their water treatment plant to accommodate a growing population, they carefully considered and investigated their water disinfection options.

  3. The U.S. Government Is Finally Starting To Pay Attention To PFAS — It’s About Time
    6/22/2018

    The Environment Working Group (EWG) recently released a report that claims up to 110 million Americans could have drinking water contaminated by PFAS (per- and polyfluoroalkyl substances) — much higher than the previous estimate of 16 million affected Americans.

  4. Mountain Regional Water District Deploys Next Generation On-Site Hypochlorite And Tank Mixing Technology To Meet Expanding Water Management Needs
    7/16/2018

    The Mountain Regional Water District is a Special Service District of the county that was established by the Summit County Commission in 2000 to regionalize water service by consolidating several public and private water companies.

  5. Coastside County Water District, California Drives System Reliability And Sustainability With Microclor® On‐Site Hypochlorite Generation, Encore® Metering Pumps And PolyBlend® Polymer Activation
    7/18/2018

    Located in northern California, the Coastside County Water District (CCWD) provides treated water to the scenic town of Half Moon Bay and several unincorporated communities in the area. The system is served by two treatment plants, the Nunes Water Treatment Plant (4.5 MGD) and Denniston Creek Water Treatment Plant (1.0 MGD) and water is distributed through about 100 miles of transmission and distribution pipe.

  6. Salt Lake City Public Utilities ‐ Award Winning Big Cottonwood WTP, Experiences Microclor® On‐Site Hypochlorite System Reliability and Safety For Over Six Years
    7/18/2018

    Located at the mouth of the Big Cottonwood Canyon, the Big Cottonwood WTP is one of three water treatment facilities providing treated water to Salt Lake City (SLC), Utah. The utility distributes water through about 1,300 miles of transmission and distribution pipe to over 90,500 connections. Recently, the Big Cottonwood WTP was recognized for delivering 16 years of high quality water and received the Directors Award from the EPA & AWWA Partnership for Safe Water.

  7. Indiana American Water Eliminates Gaseous Chlorine At Hidden Lake WTP In Warsaw, Indiana
    7/20/2018

    In 2000, Indiana American Water, a subsidiary of American Water Company, purchased the Warsaw Indiana system which serves a population of over 16,000. Indiana American then completed a Comprehensive Planning Study that included a number of upgrades and improvements to enhance the reliability, safety and water quality of the system.

  8. City Of Springfield, MO, Upgrades Disinfection System From Gas Chlorine To On‐Site Sodium Hypochlorite Generation
    7/24/2018

    In April 2013, City Utilities started up three Microclor Model MC‐1500 skid systems, each rated at 1,500 pounds per day of free available chlorine.

  9. Cryptosporidium Removal From Commercial Swimming Pools
    5/28/2018

    A year long pilot study was performed at an indoor commercial pool in Geauga County Ohio. The testing included an extensive evaluation of common and widely available granular filtration medias and compared the performance results in real time. The intent of the study was firstly to compare the real time turbidity removal capabilities of the various medias and secondly assess the removal ability of cryptosporidium sized particulate (2-5 micron). This assessment also included a polystyrene microsphere challenge on selected well-seasoned medias to compare the ability of the medias to remove crypto sized particles.

  10. Full-Scale Installation Report For Z-92® Uranium Removal – Morongo Del Sur, CA
    8/8/2018

    The Golden State Water Company selected WRT’s Z-92® Uranium Removal treatment system to reduce high concentrations of uranium in a single treatment system for three wells located in the Morongo Valley of California.  Since installation of the Z-92® Uranium Removal treatment system in Morongo del Sur in 2013, the uranium levels are being reduced to levels below the Maximum Contaminant Level (MCL).