Re: Sewage Sludge LLD

["Tony Harrison" <laharris@SMTPGATE.DPHE.STATE.CO.US>]

Colorado has a solid waste regulation that says sewage sludge must be

below 40 pCi/gm gross alpha activity before it can be sent to a landfill

or otherwise "free released".  There are probably other limits, but

that's the one that gives people the most trouble.  Therefore, we try to

get a detection limit of ten pCi/gm or less.  It's not a requirement,

just good practice.



Tony Harrison

Colorado Dept. of Public Health & Environment

Laboratory and Radiation Services Division

tony.harrison@state.co.us 





>>> "Morgan, Ben" <ben.morgan@pgnmail.com> 08/10/01 12:59PM >>>

Greetings:



What LLD do you try to achieve when counting sewage sludge for free

release?

What was your basis for selecting your value?



Thanks,



Ben



ben.morgan@pgnmail.com 

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