Specifications include, but are not limited to: a. Maintenance services are broken into two categories, residential and downtown core. The mandatory minimum site visit frequency from April 15th – September 30th for those categories are as follows: 1. Residential: Monthly 2. Downtown Core: Bi-weekly (once every two weeks) While the minimum site visit frequency is noted above it is expected of the chosen contractor to perform additional site visits in early-Spring and in the Fall following leaf-off. b. Maintenance activities for all areas are as follows: 1. Intermittent site visits (as defined above) where the following activities should be performed if the need is visibly evident, a. Watering i. Greenways are not areas requiring watering. Bioretention systems require watering for the three weeks immediately following a new planting and during the months of JulySeptember when a period of 7 calendar days has passed without a 24-hr rain event greater than a quarter of an inch. b. Removal of sediment, leaves, trash, and other accumulated debris at garden inlets and within the garden area, c. Weeding, d. Raking / repair of minor eroded areas. e. Addition of compost as side-dressings to plants as needed, f. Procurement of replacement plants to maintain existing species diversity and system coverage. If a replacement plants variety is unknown by the Contractor please contact Vincent (VJ) Comai [vcomai@burlingtonvt.gov] for confirmation. i. If, not due to negligence on the part of the Contractor, more than ¼ of the plants in any given system require replacement during a growing season the costs for the plants above ¼ may be charged as a change order to the bid value. g. Installation of replacement plants. 2. During Monthly site visits inspect and repair the following if required, a. Replacement of stone at inlet areas, i. Replacement is required following noticeable fines build up or scour and loss of stone from the inlet area. b. Replacement of pea gravel or woody mulch if depth of mulch is less than 2”, 3. Pruning, a. Bi-weekly if required, b. and seasonally to prepare perennial plants for wintering c. No trees should be pruned as part of this contract.
