The following information is needed to complete your application: Address; Legal description of the property from Travis Central Appraisal District (TCAD). We offer a wide range of agricultural construction and general engineering services.Waterworks, New construction, maintenance and repairs on all water systems. Independent irrigation companies usually do free bids. The contracts are for up to 10 years and up to 10 acre-feet of water per year. These are firm water contracts. You will need to Create an Account and then you can log in and under Permits and Licensing, Apply for a Permit (application) online.