Drainage problems

In our association we have drainage ditches that run in front of the houses by the street and some that run behind the houses at the property line. We have 4 or 5 different home builders in the neighborhood, some went under during the process of building and others took over. Unfortunately the builders didn't make sure the drainage in one section was compatable with the drainage in the next section, this was all done probably 15 years ago. We now have some drainage problems, some of the homeowners have had drainage pipe put in their ditch, connecting it to the next home's pipe and so on, then covering over the pipe, so there is no exposed pipe or open ditches, but some homeowners have just filled in their ditch without piping it first, which has stopped up the draining from one lot to the next. Can we make every homeowner correct the problems by cleaning out their ditch,piping the ditches and then covering them, and if they don't do this can the association do this and then charge it to the homeowners?

We have a restrictive covenant registered on title specifically saying we cannot alter the drainage swales. This is a town/municipality requirement not a HOA requirement for us. If someone alters and negatively impacts the swale it is the town we would have to go to.