Specifications include, but are not limited to: 2.5 days (20 hours) of hydro-ax services at Lake Houston Wilderness Park. Trees under 4” DBH and understory vegetation to be removed from approximately 30-ft interior of trail line on attached map to create a shaded fuel break. Trees to be removed at grade and mulch to be left on site. *NOTE: Must be able to remove trees with a DBH of up to 24-30". Contractor must be able to identify native vs non-native trees and hydro-ax/ ‘chip’ the trees in place. Proof of tree identification skills may be required upon request. Precautions must be taken to avoid damaging or running over remaining trees while executing services. The contractor will not damage the ground with equipment or rutting. Contractor must provide references for previous habitat management work upon request. Contractors without previous habitat management work will not be selected. No taxes shall be included in the bid prices since the City of Houston is exempt from all sales tax. The City of Houston can provide selected vendor applicable proof of sales tax exemption. Selected vendor shall provide the City of Houston acceptable proof of insurance which meets the requirements as set forth by the City. Selected vendor shall complete and submit the City of Houston Drug Policy Form, upon award of the contract. The contractor will furnish all labor, materials, equipment, services, transportation, insurance, and expenses to meet the requirements of this scope of work and specifications.