http://cincystreetcar.wordpress.com/2009/01/26/infrastructure-allows-greater-density/
Let in the sewerage system engineer and let in the cookie cutter home developer who cares little about the environment and produces homes to the minimum standards. Noise and light pollution results as tightly packed communities experience the trauma of citification, places where people don't know each other and don't talk to their neighbours that often.
Developers with limited amounts of land want to pack people into small lots and will almost invariably call for a sewerage system because of the environmental damage small lots and household density will cause. A prelude to packing a region more densely could be to introduce a sewerage system in order to allow a developer to pack people together in tiny box like homes rather than spread them out within the woods.
Licensing systems can provide a means of thinning out population density in order to preserve natural habitats and the environment.
http://www.water.rutgers.edu/Fact_Sheets/fs533.pdf
The profit incentive thus for engineering consultants getting business from governments in municipalities, from other engineering companies and from land developers or owners of smaller lots will be to push for sewerage systems.
These groups will raise their profitability because of economies of scale. In other words the more densely they can pack houses together the more profit they make and the less space the household owner has to grow a family.
http://www.nap.edu/openbook.php?record_id=11241&page=54
Sewer systems are thus bad for home development where the family is trying to enjoy the environment and the natural preservation. They destroy the environment by packing too many households into too small a space. Rather than leave a beautiful environment for families to enjoy developers create compounds of houses with small gardens and poor outlooks. Trees are cut down, small lakes are filled in and nature leaves. Small birds have to depart because they cannot hear other birds talking to them. All nature is squeezed out as the bulldozer changes the environment into a densely packed cookie cutter development.
Will ye no think kindly on those who would be your friends! May the sun shine with your thoughts, today, and happiness grow in your heart! May you allow yourself some peace of mind.