These companies are in the business of selling in-home water purification systems. ONWASA employees will always be in a marked vehicle with the ONWASA logo, will be in an ONWASA uniform, and will have proper ONWASA identification and will not ask for a sample of your water from your home unless contacted prior to their arrival. ONWASA goes beyond the required strict regulations to ensure pure, safe quality water is delivered to your home daily. As some customers may detect a taste from the water, a simple carbon filter will normally eliminate the taste. When in doubt or if you have questions or concerns about your water, call us at 910-455-0722.