Understanding the Types Of Water That Can Enter Our Homes
One critical component of water and our homes is understanding the types and how the industry classifies these types. You can agree or disagree, but this is the standard the industry has comprised. Each Category has its criteria for how the building structure and materials are to be addressed. According the IICRC (Institute of Inspection Cleaning and Restoration Certification), which sets the standards for the cleaning industry and water damage restoration training, there are several different levels and classes involved in liquid destruction. From the IICRC’s S-500 standards, there are three categories describing the type of liquid involved. • Category 1. This is liquid from a clean and sanitary source, such as faucets, toilet tanks, drinking fountains, etc. But, category one can quickly degrade into category two. • Category 2. This category of liquid used to be called grey water, and is described as having a level of contaminates that may cause illness or discomfort if ingested. Sources include dishwasher or washing machine overflows, flush from sink drains, and toilet overflow with some urine but not feces. • Category 3. This is the worst classification and is grossly unsanitary. It could cause severe illness or death if ingested. It used to be called black water, and sources include sewer backup, flooding from rivers or streams, toilet overflow with feces, and stagnant liquid that has begun to support bacterial growth. Different removal methods and measures are used depending on the category of water. Due to the destructive nature of water, chosen restoration methods also depend heavily on the amount of water, and on the amount of time the water has remained stagnant. For example, as long as carpet has not been wet for longer than 48 hours, and the water involved was not sewage based, a carpet can usually be saved; however, if the water has soaked for longer, then the carpet is probably irreparable and will have to be replaced. Water damage restoration can be performed by property management teams, building maintenance personnel, or by the homeowners themselves; however, contacting a certified professional water damage restoration specialist is often regarded as the safest way to restore water damaged property. Standards and regulation While there are currently no government regulations in the United States dictating procedures, two certifying bodies, the Institute of Inspection Cleaning and Restoration Certification (IICRC) and the RIA, do recommend standards of care. The IICRC-recommended standard is IICRC S500. Fire and Water Restoration companies are regulated by the appropriate state’s Department of Consumer Affairs – usually the state contractors license board. In California, all Fire and Water Restoration companies must register with the California Contractors State License Board. Presently, the California Contractors State License Board has no specific classification for “water and fire damage restoration.” Procedures Water damage restoration is often prefaced by a loss assessment and evaluation of affected materials. The damaged area is inspected with water sensing equipment such as probes and other infrared tools in order to determine the source of the damage and possible extent of area affected. Restoration services would then be rendered to the residence in order to dry the structure, sanitize any affected or cross contaminated areas, and deodorize all affected areas and materials. After the labor is completed, water damage equipment including air movers, air scrubbers, dehumidifiers, wood floor drying systems, and sub floor drying equipment is left in the residence. Industry standards state that drying vendors should return at regular time intervals, preferably every twenty-four hours, to monitor the equipment, temperature, humidity, and moisture content of the affected walls and contents. One last note, over time what was once Category 1 water turns into what is classified into Category 3 water. All that is required is to allow the water to remain over time. Bacteria and other organisms thrive on wet situations. In the next article I will discuss the Classification on how large the water damage has affected a structure and what steps are taken to resolve the wet materials.