Washington: Dripline or Soakerhose that is NSF-61 compliant?

Hi,
I am just setting up my organic garden and want to set up a drip line or soaker hose, but don't want to use the standard rubber recycled or plastic materials since they are not NSF-61 standards healthy for potable water.

I have clean water from a well to the spigot, and don't wish to contaminate the water through the dripline/soaker hose.

There is a standard for potable water called NSF-61 and I wish to only use products that meet that standard.

Does anyone know of any dripline or soakerhose products that meet this standard?

Thanks for any recommendations!

 

CostCo has hoses that are supposed to be suitable.