State Low Income Household Water Assistance Program (LIHWAP) April 25, 2023 The State Low Income Household Water Assistance Program (LIHWAP) can help you pay arrears for your water and sewer bills. The program may also be able to help address tax liens due towater and sewer arrears. To get more information and apply, go to waterassistance.nj.gov orcall NJ211.