PMUA provides a 15% savings and a more streamlined application process for those who are eligible for our Senior Citizen or Disability service discount. It is not necessary to fill out a PMUA form. Eligibility will be based on the City of Plainfield’s requirements to receive a senior and/or disability tax break. Residents who meet these criteria will automatically be enrolled in our PMUA service discount program and will receive a letter from us confirming qualification for the program. Senior Citizen discount and Disability discount may not be combined.