Re: MRL of chlorine in the portable water

From: Ira Somerset (isomerset@hotmail.com)
Date: Thu Mar 16 2006 - 04:49:04 PST

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    Hi~

    It's not easy to read government regs, but the minimum and maximum chlorine
    levels are given in:

    40 CFR 141.72(a)(2) This sets the minimum level at 0.2 mg/l
    (http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=b110d9577ec550498e96cb4e1993ff30&rgn=div8&view=text&node=40:22.0.1.1.3.8.16.3&idno=40)

    40 CFR 141.65(a) This defines the upper limit (4.0 mg/l)
    (http://a257.g.akamaitech.net/7/257/2422/14mar20010800/edocket.access.gpo.gov/cfr_2002/julqtr/pdf/40cfr141.65.pdf)
    or
    (http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=b110d9577ec550498e96cb4e1993ff30&rgn=div8&view=text&node=40:22.0.1.1.3.7.16.6&idno=40)

    There is a Fact Sheet which contains a List of disinfectants, but does not
    reference the rule behind the statements which can be found at:

    http://www.epa.gov/safewater/mcl.html

    For supplemental chlorination within the plant, I could not find any good
    guidance in writing. However, since the EPA Water Supply rules set the max
    at 4.0, I would not recommend going above that level.

    Ira Somerset

    ----Original Message Follows----
    From: "Remi Michalowski" <remi.michalowski@cpbahari.com>
    To: "Geri Culwell" <gericulwell@hotmail.com>, <namnh@vasep.com.vn>,
    <seafood@ucdavis.edu>
    Subject: Re: MRL of chlorine in the portable water
    Date: Thu, 16 Mar 2006 16:22:11 +0700

    EU Directive 98/83/EC
    => Free Chlorine max 5ppm for drinking water

    Use of chlorine regulated by legislation concerning Biocidal Products e.g.
    Directive 98/8 and Positive List (you can check the conversation about the
    use of chlorine for seafood decontamination, a few months ago within Seafood
    List).
    The biocidal products for drinking water have to be registered and
    authorized as TP (Type of Product) #5.

    Kind regards,

    RM
    ----- Original Message ----- From: "Geri Culwell" <gericulwell@hotmail.com>
    To: <namnh@vasep.com.vn>; <seafood@ucdavis.edu>
    Sent: Thursday, March 16, 2006 5:27 AM
    Subject: RE: MRL of chlorine in the portable water

    >Alaska DEC 18 AAC 34 states that seafood processing water must be
    >disinfected to maintain a measurable residual of free chlorine. EU (EFSIS)
    >accepts this and if city or municipal water is being used, they may also
    >ask to see the annual water quality report from the city.
    >
    >Geri Culwell
    >
    >
    >>From: "Nguyen Hoai Nam" <namnh@vasep.com.vn>
    >>To: <seafood@ucdavis.edu>
    >>Subject: MRL of chlorine in the portable water
    >>Date: Wed, 15 Mar 2006 16:24:42 +0700
    >>
    >>To list members,
    >>
    >>By the water (portable water) used in the seafood processing factory, and
    >>in case it's treated by chlorine. Would anyone advice me about MRL of
    >>chlorine (ppm) in the portable water base on EU and US regulations? and
    >>which EU & US regulations mention about this?
    >>
    >>I have searched through EU directive 98/83/EEC and US Clean water Act (by
    >>EPA) or 21 CFR part 141 , but it's impossible to find this criteria.
    >>
    >>Thank so much in your advance!
    >>
    >>Nguyen Hoai Nam
    >>VASEP
    >>www.vasep.com.vn
    >
    >

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