The 2004 Safe Drinking Water Act regulations required water purveyors to submit their service areas in digital GIS format compatible with the NJDEP's GIS when applying for a Safe Drinking Water construction permit. These polgyons were QA/QC'd by Water Supply staff and appended/merged into this dataset.
For all systems who did not submit a digital GIS dataset, the service area was mapped during the purveyor's bi-annual enforcement inspection and incorporated into this dataset after Water Supply staff QA/QC'd the data.