Warren County Health Services is reminding residents who have a septic tank connected to their home or property that a properly maintained septic tank needs to be pumped every 3-5 years. Those needing to make a repair or alter an existing septic system, Warren County Environmental Health requires permits for replacing the distribution box, replacing the primary or secondary forms of treatment, hooking an existing septic system to a new building, or replacing a significant amount of piping. For more information, including a list of certified septic tank pumping companies, click below.