Waters Protection Ordinance
(WPO)

of 28 October 1998 (Status as of 1 February 2023)


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Art. 21 Supply

1 Per­sons re­spons­ible for cent­ral waste wa­ter treat­ment plants must keep a re­cord of re­cip­i­ents of sludge, the amount sup­plied, type of dis­pos­al de­clared and time of sup­ply and re­tain this in­form­a­tion for at least ten years and make it avail­able to the au­thor­it­ies on re­quest.

2 ...17

3 ...18

4 They may only dis­pose of sludge oth­er than as planned in the can­ton­al Sludge Dis­pos­al Plan with the agree­ment of can­ton­al au­thor­it­ies. If sludge is to be dis­posed of in an­oth­er can­ton, the can­ton­al au­thor­it­ies shall con­sult the au­thor­it­ies of the re­ceiv­ing can­ton in ad­vance.

17 Re­pealed by No I of the O of 4 Nov. 2015, with ef­fect from 1 Jan. 2016 (AS 2015 4791).

18 Re­pealed by An­nex 3 No II 4 of the O of 22 June 2005 on Move­ments of Waste, with ef­fect from 1 Jan. 2006 (AS 2005 4199).

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