Large ion exchange treatment units are operating in three public water supply systems that include seven municipal wells where perchlorate has been detected.

In its earliest years, the waterworks sheltered equipment used to pump water from municipal wells.

Approximately 6000 people obtain their drinking water from both municipal and private wells located near the site.

In addition, the developer has agreed that the complex will not be allowed to use municipal wells for lawn watering.

In huge municipal wells, these cones of depression often can extend many miles from the pumped well.

Moving the municipal wells would be costly, township officials said, because new water lines would have to be put down.

We already have saltwater intrusion that's closed a number of municipal wells.

Four municipal wells act in a reserve capacity.

Both private and municipal wells draw on ground water, which may need more careful monitoring than other sources.

In Hunterdon County, many towns with their own municipal wells have asked residents to cut back.