You're right. I'm not proposing "pollution by dilution is OK". I'm only saying I agree that these people with diverse goals, all of which affect our water quality, belong in the same department for the simple reason that they are able to discuss their job-related goals. In separate departments the likelihood of ever having such discussions is almost nil.
My personal belief with regard to the environment is
1) The laws by which nature operates are inviolable. We must learn to work with them, rather than trying to change them. How many times in the past two centuries have we proceeded with ill advised plans that have been efforts to violate nature (either intentionally or through ignorance). We clear cut our forests, made the ( ) pigeon extinct, nearly exterminated all of the American Bison, put a bounty on gray wolves--which we almost eliminated, and worked at the disposal of numerous other animals and plants. Further, we have imported (by design or ignorance) a number of exotic plants and animals that encroach upon our native flora and fauna with a vengeance.
2) With regard to the environment, we must not negotiate on a principle, where that principle is one, or more, of nature's inviolable laws. To attempt to negotiate a compromise on natural laws is to attempt to change a principle of operation, which nature does not allow, ever. When we choose to use our waterways as a disposal systems, and use Parcelsus' claim, "the poison is in the dose," we are compromising a principle. Why should there be any poison in our waters?
It seems clear to me that we must find other ways to disposal of effluent. Some Europeans have used water-free toilets for decades (it's time for American research in this area). It is also seems clear to me that we should spend far more time testing new materials, foods and drugs before we foist them on the public for profit. If a material is not biodegradable, then it should be recyclable and the expense of the recycling should be built in to the original cost. We should not be building "trash mountains" as our disposal sites. If it's garbage, turn it into compost to restore our organically depleted fields. If it's metal, reclaim it for new manufactured products. Unfortunately, it's all a matter of economics when environmental principle is sacrificed. Our fight is to maintain the principles. If it costs more, so be it.