I remember the newspaper article mentions concern of fish that might potentially suffer from DLH's house project. And to quote somebody who has visited DLH's house (and who is also a seasoned tea drinker), "... I'm sure no fish would be unhappy living downstream of DLH's house..." (I paraphrased.)
I'm not sure a tea drinker however seasoned can speak for fish feeling happy about Hoffman's biowaste potentially leaching into the aquifers.
I'm a serious vermicomposter myself and had read all about humanures but have never tried it. Safety is dependent on the practice of the composter. I personally don't feel entirely comfortable having my tea vendor who has to package my tea be in frequent contact with human manure esp. when they are not anal about cleanliness.
But if Hoffman's open sewage ponds don't alarm you as being a public health hazard, we are on very different planes of thought.