[compost_tea] Re: Re: Re: Biosolids

From: Kirk Leonard <kirk_at_oregonatural.com>
Date: Mon, 14 Jun 2004 13:13:10 -0700
Lloyd -- a reply below.

> Date: Sat, 12 Jun 2004 07:14:53 +1000
> From: "Lloyd Charles" <lcharles_at_iinet.net.au>
> Subject: Re: Re: Re: Biosolids

>   Storm water from streets. [?]

>   Hmmm
>    I thought about that but ours goes straight in the river - or Sydney
harbour - so its not a part of sewerage - any plumber / builder that directs
runoff water into the sewer system will get de registered quick!

> > (KL) Lots of cities (most?) worldwide combine street water
> > runoff with other sewage wastes, and especially where storm runoff is
also
> > collected by curbing, the result is a higher concentration of nasties
that
> > is inevitable when storm runoff from streets is combined with other
sewage.

>   R U sure abt this? doesnt happen this side of the globe - would flood
the sewers and cause untold havoc - there would be poo floating around all
over the place after a heavy storm!

I'm sure in the US, imagine it happens lots of places.  Much older cities
and much younger ones may be different.  And yup, there's lots of poo put in
rivers with storms, even with light storms.  Hundreds of cities in US did
"combined sewer systems" in 19th-20th centuries.  One of my favorite US
cities - Portland OR - is doing its largest ever civil construction project,
a billion bucks over 15 years, to separate storm and sewer, and lots of
other US cities are having to do the same.  One of the first things they do
is get people to disconnect downspouts from sewers, as you suggest.  Best
practice is to disperse storm water on site rather than pipe to a processing
plant, so Sydney sounds ahead of the game... though I'm not sure about
"straight in the river"...;)

Kirk





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Received on Mon Jun 14 2004 - 23:15:56 EDT

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