Per WTCPUA Rate Tariff (PDF), Reservation Fees are charged for customers who enter into Non-Standard Service Agreements to reserve water or wastewater capacity in the PUA’s system. After issuance of a Service Availability Letter, there is a six-month grace period before the first reservation fees are due. Reservation Fee payments are due annually for any unused LUEs. Reservation fees cease being paid when meters are set and customers pay Impact Fees for each LUE.