Assessing the severity of the damage is important for determining what is needed to start water damage repair and water removal. There are several different categories assigned to water damage. Category 1 refers to clean water, or water that does not pose a threat to humans. Possible causes of this type of damage include broken appliances or sink overflows. Category 2 water is also called gray water. This means that the water is contaminated and may cause sickness of ingested. This type of water contains microorganisms. Broken toilets, broken sump pumps, and seepage may cause category 2 water damage. Category 3 water is known as black water. This type of water is unsanitary, as it contains bacteria and other organisms that cause sickness. The possible sources of black water damage include sewage problems and contamination of standing water.
Though not the most common precipitator of water damage repair in the NH, storm flooding can cause serious short term and long-term problems to your residential or commercial property. The likelihood of flood-water damage to your property is rising, and property owners need to be prepared to deal with this very real possibility.  Flooding from seasonal storms is more common than you’d think, and the problems that arise from it need to be addressed as quickly as possible.
It is possible to recover from a catastrophic event with a more reliable system than before. However, the speed and efficiency of the recovery will depend on the availability and accuracy of documentation. In preparation or planning for the recovery of an electrical system, the facility should ensure that all drawings/documentation are up to date and a copy is kept in a safe location that can be accessed after the event.
Category 2 Water - Refers to a source of water that contains a significant degree of chemical, biological or physical contaminants and causes discomfort or sickness when consumed or even exposed to. Known as "grey water". This type carries microorganisms and nutrients of micro-organisms. Examples are toilet bowls with urine (no feces), sump pump failures, seepage due to hydrostatic failure and water discharge from dishwashers or washing machines.