One size doesn’t fit
From http://wattsupwiththat.com/2011/02/03/great-moments-in-snow-removal/ a comment by agimarc:
“The one size fits all EPA clean water rules lead to some real bizzaro local solutions to the new costs. There is an EPA rule that waste treatment plants must remove 30% of organic waste from incoming sewage. This is a problem if your incoming water is very clean, as it is here in Anchorage. Around 20 years ago, the requirement was going to lead to a $135 million new treatment plant, which we couldn’t afford. So the local solution was to dump fish waste from commercial fishermen into the inbound stream so the existing treatment plant would meet the 30% requirement. EPA was just fine with that solution.”
This is why state enforced national rules and guidelines don’t generally work.