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HomeMy WebLinkAboutDDW-2024-0069133/6/24, 10:57 AM State of Utah Mail - Camp Kolob-Deer Haven (Sys #27042); File 13256 - Secondary Disinfection Project - Review Comments https://mail.google.com/mail/u/0/?ik=f3bcb897f8&view=pt&search=all&permmsgid=msg-a:r-2419666052672072543&simpl=msg-a:r-24196660526720…1/3 J. Paul Wright <pwright@utah.gov> Camp Kolob-Deer Haven (Sys #27042); File 13256 - Secondary Disinfection Project - Review Comments J. Paul Wright <pwright@utah.gov>Wed, Mar 6, 2024 at 9:55 AM To: Jon Oldham <joldham@bowencollins.com> Cc: "Chris DeMille (cdemille@cdce-utah.com)" <cdemille@cdce-utah.com>, Andrew Beecher <Andrew.Beecher@churchofjesuschrist.org> Jon, I have just a couple of questions/comments about the chlorination on this project: 1) You mention that sodium hypochlorite will be used. I need to know that this type of sodium hypochlorite is ANSI/NSF 60 certified. The reason I ask is because typically sodium hypochlorite is about 12.5% concentration and what comes in 5.25% concentration is typically bleach, which is not allowed as a disinfectant. 2) Is the Blue-White Flexflow M14-4T peristaltic pump ANS/NSF 61 certified for drinking water use? 3)There should be some method of secondary containment (like a tray, for example) in the event the primary container leaks. 4) Sodium hypochlorite above 5% strength requires some method of eyewash as described below in red. This should be described in the project how this will be done but it really can be as simple as an eye wash bottle that is located near the hypochlorite tank. i) Emergency Eyewash and Safety Showers. Emergency eyewash stations and safety showers shall be provided at all hypochlorite installations where concentrated hypochlorite solutions, containing 5% or greater available chlorine by volume, are handled in containers greater than 55 gallons. Where hypochlorite solutions are used at remote locations or in quantities of 55 gallons or less on site, safety showers are not required and alternative emergency eyewash may be provided Let me know if you have any questions. Paul On Thu, Feb 15, 2024 at 10:44 AM Jon Oldham <joldham@bowencollins.com> wrote: Paul, I’ve attached the same information I included with the project notification including the drawings, PNF, and chlorinator plan review checklist. I’ve also filled out the PA information. Please let me know if you have any questions. Thanks, _____________________ Jon Oldham, P.E. Bowen Collins & Associates 801.495.2224 Office 801.663-1863 Cell