Tarrant County is requesting bids for the ANNUAL CONTRACT FOR IRRIGATION SUPPLIES,. When searching for a professional irrigation contractor to install a system or service an existing system, there are certain qualifications you should consider.A permit is required for the installation of irrigation systems, which must comply with the requirements of the International Plumbing Code. Tarrant County is requesting bids for its ANNUAL CONTRACT FOR IRRIGATION SUPPLIES,. STAR provides access to a variety of document types that may be useful in researching Texas tax law and tax policy. The TRWD Lake Resident Water Conservation and Drought Management Plan is an extension of the Water District's current Water Conservation and Drought Contingency. To apply in person, please fill out the irrigation contractor registration form(PDF, 156KB).