|The overall quality of groundwater resources in Mississippi is quite good. Incidents of groundwater contamination impacting large segments of the population have been rare, because most of the drinking water in the State is obtained from deep aquifers that are naturally protected to some extent by overlying (confining) layers. Most of the documented cases involving groundwater contamination have been localized incidents involving point sources such as leaking underground (gasoline) storage tanks and abandoned water wells. However, polluted runoff from failing septic systems and areas where pesticide and fertilizer are applied, are major concerns for groundwater as well.|
MDEQ's Ground Water Planning Branch in the Office of Pollution Control administers several programs that are directly involved in addressing groundwater protection in the state.