Package Plant Problem Expertise

I have long experience of diagnosing and fixing problems with package sewage treatment plant, in both domestic and industrial applications. I wrote a short account of some of the more common problems here. I have also designed such plants, and done quite a bit of expert witness work with them. I'm sure you can find a cheaper "expert", as there are all kinds of people claiming expertise in the area. Not many of them have actually designed such plants, or are accepted by the courts as an expert.