Scope_of_Work_&_Specifications.docx

San Mateo County Parks District I Coyote Point Recreation Area Hazard Tree Mitigation & Woody Debris Management

Addresses:

Coyote Point Recreation Area (CPRA) 1701 Coyote Point Dr, San Mateo, CA 94401.

Scope of Work:

Remove a total of five (5) trees, one (1) hazard tree and four (4) downed Eucalyptus (Eucalyptus globulus) trees located southwest of the Captains House in Coyote Point Recreation Area. Remove the marked trees, grind the downed trees’ root balls, and manage the woody debris according to the specifications provided.

Stump height shall not exceed 6 in. above grade for the hazard tree removal.

All work performed in SMC Parks must abide by ANSI Z133 Safety Standards, ANSI A300 Tree Care Standards, and ISA BMP's. Communication with ranger and Parks staff as requested is essential for a successful project.

Woody Debris Management Specifications:

Woody debris less than 16” shall be chipped and broadcasted (away from trees, trails, roads, waterways, and use areas), onto Park’s land. Mulch or chip height shall not exceed 12 in.

Tree throws (bowl-shaped depressions resulting from the windthrow), should be filled with soil and covered with mulch to create an even and stable surface.

Larger logs and wood that cannot be chipped shall be hauled off to an appropriate green waste facility.

Estimations for the amount (volume or weight) of woodchips generated must be provided upon project completion.

Limitations:

Contractor shall notify San Mateo County Parks five (5) days in advance prior to scheduling the tree work to allow sufficient time for public notice, trail closures, and biological monitoring to take place beforehand.

All workers must obtain an annual environmental awareness training prior to commencing any work on San Mateo County Parks land. This brief training will be provided by SMC Parks’ Natural Resource Management personnel and cover standard Best Management Practices (BMP’s) and environmental regulations.

No woody debris material shall be deposited or broadcasted into drainage channels or waterways.

Soil compaction avoidance and minimization measures through the use of traction mats, plywood, and/or mulch.

Summary of Work Requested:

· Total: 5 tree removals | 4 root ball stump grindings | woody debris management

Hazard Tree Removal 1-Blue gum eucalyptus Eucalyptus globulus Mitigation: Tree removal.

DSH: 28 in.

Height: 70 ft.

GPS Location: 37.58907, -122.322351 Location: Southwest of Captains House Unique ID: EUGL-02232026-1253 Defect/Conditions of Concern: Minor crown dieback, site history of windthrow, heavy lean over the trail and significant damage to tree’s critical root zone.

Targets: Trail.

Downed Trees & Woody Debris Blue gum eucalyptus Eucalyptus globulus Mitigation: Removal and root ball stump grinding.

DSH’s: 30 in. | 36 in. | 40 in. | 28 in.

Height/Length: 75 ft. | 110 ft. | 105 ft. | 100 in.

Location: Southwest of Captains House.

Unique ID: EUGL-02232026-1300

Tree Risk Assessment Assumptions and Limitations:

· All trees carry some degree of risk for failure and susceptibility to decline.

· Trees are living organisms that cannot always be fully understood or controlled.

· This tree risk assessment is based on the knowledge of the inspecting arborist and information gathered from tools and observations. All arborists are limited by their education, training, experience, tools, and site conditions. However, as specialists in tree care and risk management, arborists must fulfill their duty of care by taking reasonable measures to identify, communicate, and address detectable conditions of concern with the client.

· Tree failure cannot always be predicted. Tree failures are caused by a combination of factors that are not always visible, predictable, or manageable.

· Assessments are based on conditions observed during the time of assessment. Any alteration to the tree or site conditions that are caused by severe weather events, construction, pests, pathogens, wildlife, or other human activities can affect the stability and risk of tree failure. Such types of future changes cannot be foreseen and taken into consideration during a tree risk assessment. These changes depending on the severity can invalidate the tree risk assessment.

· Omission or alteration of any part of this report invalidates the tree risk assessment.

· Recommendations provided for reinspections and timeframes for the implementation of mitigation treatments are not a guarantee that the tree will continue to remain healthy or standing.

· Tree failures within the specified reinspection intervals and timeframes can still occur due to an act of God or unforeseen reasons.

· Mitigation treatments cannot guarantee that the tree will recover, be safe, or remain standing. Mitigations serve only to reduce the risk to tolerable levels.

· Only trees included in the scope of work were inspected. No other tree(s) in the vicinity were assessed.

· This report represents the professional opinion of the inspecting arborist.

· The findings and recommendations presented in the report can be either adopted or disregarded. Clients have the option to seek further consultation from other parties.

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