Nice. My favorite part: SECTION 8.0: RECOMMENDATIONS Assessments presented in this report illustrate that the risk of death and injury associated with unsprinklered dwellings is higher that the risk of illness associated with unprotected sprinkler systems. This assessment alone supports the need for residential sprinkler systems. Calculations presented in this report also show that the three protection devices evaluated in this study (a single check valve device, a double check valve device, and a reduced pressure principle device) provide the same degree of health risk protection. Either device will adequately protect human health to orders of magnitude below the desired USEPA acceptable risk level of 1 x 10-4 gastrointestinal illnesses per year per person. Recommendations of this report are as follows: 1) The SCV device should be considered in favor of the DCVA and the RPBD for individual household sprinkler systems. 2) If a protection device is to be used for a sprinkler line, the same degree of protection should be considered at the potable water line.
On Wed, Nov 3, 2010 at 3:36 PM, Forest Wilson <[email protected]> wrote: > Here is a report from the US Fire Administration regarding backflows on > sprinkler systems: > > http://www.usfa.dhs.gov/downloads/pdf/publications/fa-12054.pdf > > > On 11/3/2010 5:52 PM, Ron Greenman wrote: >> >> Neither of these studies are referring to residential CPVC potable >> piping but to: >> >> IMPACT: >> Cross-connection control for Class 1 and Class 2 wet-pipe fire >> sprinkler systems using approved backflow prevention assemblies on new >> construction is recommended based on the following findings: (1) water >> quality within the black-steel wet-pipe fire sprinkler systems exceed >> drinking water standards; >> >> The peg the hat is hung on with residential CPVC and PEX is the lead >> in the heads and the stagnant water in the tree. >> >> On Wed, Nov 3, 2010 at 2:36 PM, Forest Wilson<[email protected]> >> wrote: >>> >>> Please refer to the following: >>> >>> >>> http://www.waterresearchfoundation.org/research/topicsandprojects/execSum/158.aspx >>> >>> and >>> >>> >>> http://books.google.com/books?id=X-f_x07RIgQC&pg=PR26&lpg=PR26&dq=wet+sprinkler+systems+and+water+contamination&source=bl&ots=S_8_-SeIho&sig=lTvbesgZN9ZbVT5nqrH3kGmc5kM&hl=en&ei=BM_RTPW8MZWSjAeCioW4DA&sa=X&oi=book_result&ct=result&resnum=2&sqi=2&ved=0CBYQ6AEwAQ#v=onepage&q=wet%20sprinkler%20systems%20and%20water%20contamination&f=false >>> >>> These are reports on the impact of wet sprinkler systems on water >>> quality. >>> Testing indicates that water from fire sprinkler systems is not potable. >>> >>> >>> >>> >>> >>> On 11/3/2010 5:01 PM, Gary Stites wrote: >>>> >>>> I am actually looking for your opinions as our water purveyors are >>>> asking >>>> us >>>> for assistance and education... >>>> >>>> On Wed, Nov 3, 2010 at 1:51 PM, Gary Stites<[email protected]> wrote: >>>> >>>>> The water companies in our area are concerned about backflow prevention >>>>> on >>>>> 13D systems. With California adopting the IRC all the AHJ's are >>>>> scrambling >>>>> to put their spin on it! >>>>> >>>>> Anyway, what are the backflow concerns on a CPVC system that is not >>>>> intertwined with the plumbing system? There is talk of requiring RP >>>>> devices >>>>> etc. Is a check-valve not sufficient? >>>>> >>>>> Thank You >>>>> -- >>>>> Gary Stites >>>>> 661-213-9379 >>>>> >>>>> www.bakersfieldnbc.org/worshipteaminfo >>>>> www.wgt.com/clubs/the_lookouts/default.aspx >>>>> www.sprinklersoft.net >>>>> Pandora Station http://www.pandora.com/?sc=sh43464983213902734 >>>>> >>>>> >>> >>> -- >>> Forest Wilson >>> Project Manager >>> Cherokee Fire Protection Co. >>> 1855 Bellbrook Ave Ste C >>> Xenia OH 45385 >>> >>> ph: 937-376-2333 >>> fx: 614-455-4324 >>> www.cherokee-fire.com >>> Visit our blog: www.cherokee-fire.blogspot.com >>> ******************************************* >>> This email and any files transmitted with it are confidential and >>> intended >>> solely for the use of the individual or entity to whom they are >>> addressed. >>> If you have received this email in error please notify the system >>> manager. >>> This message contains confidential information and is intended only for >>> the >>> individual named. If you are not the named addressee you should not >>> disseminate, distribute or copy this e-mail. Please notify the sender >>> immediately by e-mail if you have received this e-mail by mistake and >>> delete >>> this e-mail from your system. If you are not the intended recipient you >>> are >>> notified that disclosing, copying, distributing or taking any action in >>> reliance on the contents of this information is strictly prohibited. >>> ******************************************* >>> >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>> >>> For Technical Assistance, send an email to: [email protected] >>> >>> To Unsubscribe, send an email to:[email protected] >>> (Put the word unsubscribe in the subject field) >>> >> >> > > > -- > Forest Wilson > Project Manager > Cherokee Fire Protection Co. > 1855 Bellbrook Ave Ste C > Xenia OH 45385 > > ph: 937-376-2333 > fx: 614-455-4324 > www.cherokee-fire.com > Visit our blog: www.cherokee-fire.blogspot.com > ******************************************* > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. > If you have received this email in error please notify the system manager. > This message contains confidential information and is intended only for the > individual named. If you are not the named addressee you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately by e-mail if you have received this e-mail by mistake and delete > this e-mail from your system. If you are not the intended recipient you are > notified that disclosing, copying, distributing or taking any action in > reliance on the contents of this information is strictly prohibited. > ******************************************* > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: AFSA, SFPE, ASCET, NFPA, NFSA, AFAA, ASEE, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
