The Work includes an annual contract paid on a monthly basis for regular landscaping maintenance at Seattle Tacoma International Airport (STIA) SOUTH AREA and surrounding properties. Annual contract paid on a monthly flat rate for regular landscaping maintenance at Seattle Tacoma International Airport; the work includes the requirements for furnishing all labor, tools, specialized equipment, materials, supervision and transportation to provide proper weed control, litter removal, removal of cuttings, care and maintenance for: irrigation systems, lawns, all planters, landscaped areas, trees, shrubs and other plant materials within the project limits for healthy growth, neatly trimmed and visually attractive landscaped areas. Time and material changes, by Work Authorizations, may be required for events and activities such as irrigation repairs, diseased/distress/dead plant replacement, herbicides, fertilizer, earth movement (slides), plant/pest control, maintenance support for mitigation areas, tree topping, tree cutting, tree removal, stump removal, hydro seeding and any other landscape/plant related items that are not normally associated with the recurring general maintenance. Recycling of waste from the projects and use of recycled products is encouraged. The contract may be renewed at the POS option for a subsequent year. In addition to the base monthly maintenance work, the Port Project Manager may assign time and material work under this contract to the Contractor via written Work Authorizations. Each Work Authorization will describe the location and scope of work to be completed as well as the time for completion. The work detailed in each Work Authorization shall be performed as directed in the Work Authorization and in accordance with the Specifications herein and all applicable federal, state and local regulations. The work may not be continuous and shall be based on "on-call" requests for work as needs arise. The dollar amount of each Work Authorization will be based on a time and material estimate provided to the Port Project Manager by the contractor at the rates and markups bid on Document 00 41 00 Schedule of Unit Prices. The Work includes: Annual contract paid on a monthly flat rate for regular landscaping maintenance at Seattle Tacoma International Airport; the work includes the requirements for furnishing all labor, tools, specialized equipment, materials, supervision and transportation to provide proper weed control, litter removal, removal of cuttings, care and maintenance for: irrigation systems, lawns, all planters, landscaped areas, trees, shrubs and other plant materials within the project limits for healthy growth, neatly trimmed and visually attractive landscaped areas. Time and material changes, by Work Authorizations, may be required for events and activities such as irrigation repairs, diseased/distress/dead plant replacement, herbicides, fertilizer, earth movement (slides), plant/pest control, maintenance support for mitigation areas, tree topping, tree cutting, tree removal, stump removal, hydro seeding and any other landscape/plant related items that are not normally associated with the recurring general maintenance The Contractor shall furnish all labor, tools, equipment, materials and incidentals necessary to perform the work as requested by the Port of Seattle via a Work Authorization. All Contractor labor shall be provided as defined by the labor classifications per the Schedule of Unit Prices listed in Document 00 41 00 - Bid Form. The contract will be awarded for an estimated amount not to exceed $350,000.00, which excludes Washington State Sales Tax. The contract will last one (1) year, 365 calendar days, from the official contract award date, which is the date the Port of Seattle signs the Agreement, or until the contract amount is depleted, whichever comes first. This contract contains an option to extend the contract time up to 12 months beyond the original contract completion date. Performance and Payment bonds will be required with the Contract. Each bond shall be in the full amount of the contract sum. No bid bond is required. Labor and Industries require a "Statement of Intent to Pay Prevailing Wages" and "Affidavit of Wages Paid". The expense of such is the responsibility of the Contractor. If the Port exercises its option to extend the contract an additional year, then new Intents and Affidavits will be required for the additional contract year at the prevailing wage rates published at that time. The contract rates will be amended to reflect the changes in prevailing wage, if any.