Updated 10 States Standards Recognizes Secondary Containment as an Alternative to a Scrubber
The 2018 Edition of the Recommended Standards for Water Works, commonly referred to as the 10 States Standards are policies that act as guidelines for the design, review and approval of plans and specifications for public wastewater collection and treatment facilities in Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, New York, Ohio, Ontario, Pennsylvania and Wisconsin.
Every five years the committee reviews and revises these standards to address recent or upcoming regulations and/or new technologies. The updated 2018 version of the Recommended Standards for Water Works section 5.4.1.d.11 has improved its language to allow water treatment plants to contain their chlorine gas instead of neutralizing it.
“…provisions must be made to chemically neutralize or contain chlorine gas (or other acceptable measures as approved by the reviewing authority) where feed and/or storage is located near residential or developed areas in the event of any measured chlorine release. The chemical neutralizing equipment must be sized to treat the entire contents of the largest storage container on site.”