1. That the rural residents within such territory are without an adequate water supply, sewage facilities, gas distribution facilities or solid waste management system to meet their needs;

2. That the construction, installation, improvement, maintenance and operation of all or any combination of water works, sewage facilities, gas distribution facilities and solid waste management systems are necessary to provide an adequate water supply, sewage facilities, gas distribution facilities or solid waste management system to serve rural residents of the district;

3. That such improvements or works will be conducive to and will promote the public health, convenience and welfare; and

4. That there is sufficient water available for purchase or available for appropriation by the Oklahoma Water Resources Board to serve the needs of the district. Attached to said petition shall be an accurate map or plat of the proposed territory to be embraced within the district showing the location of said territory by reference to sections or portions thereof and the township and range wherein the same are located.