[USCC] Compost made with biosolids vs biosolids

[Maureen Reilly]

RE: Land Application of Composted Sewage Sludges


In a legal, regulatory way sewage sludges that have been composted are still 
sewage sludge biosolids.  If the process to compost was Part 503 compliant 
(and not all are) then this is Class A sewage sludge.

The details of the obligations entailed in producing Part 503 compliant 
sewage sludge compost are found in Part 503.32.     Look at the Processes to 
Further Reduce Pathogens.  Some of the US facilities making sewage sludge 
compost are not compliant with Part 503 Class A compost requirements.

Some states have additional testing and reporting requirements.

If sewage sludge compost is sold in a bag in the US then there is a lower 
regulatory control regarding application rates.  The Part 503 requirements 
are regulations ... not 'guidelines'.

Maureen Reilly
Sludge Watch

.............................

>From: Bob Engel <rrengel at yahoo.com>
>Reply-To: Compost Discussion List <compost at mailman.cloudnet.com>
>To: compost at mailman.cloudnet.com
>Subject: [USCC] Compost made with biosolids vs biosolids
>Date: Thu, 15 May 2008 09:28:55 -0700 (PDT)
>
>I have a question that I have not been able to find in the EPA 503? 
>regulations.
>At least not stated real clearly!
>Once biosolids are composted at a approved facility and have undergone 
>treatment are the land application guidlines for biosolids still applied?
>It is my feeling that once composted they are not biosolids anymore but a 
>complete new product bearing no resemblance to the feedstock used to make 
>the compost.
>Look forward to any answer?and if you can refer to the regulation it would 
>be great.
>Bob Engel
>Bob at gotcompost.com???
>
>
>
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