Indications are that Massachusetts will change its Title 5 onsite rules in a few months to require nitrogen-reducing technology on all of Cape Cod.The Massachusetts Department of Environmental Protection has contacted town managers in advance of a general notice about the change, reported Cape Cod news organizations.Changes may require upgrades of all existing systems within five years after the regulation takes effect, and may give towns the option of applying for a watershed permit, which would allow them to tailor solutions to their particular circumstances.Four communities already hold a single watershed permit for Pleasant Bay on the eastern end of
