Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Brendan Murphy
Bayworks Construction, Inc.
P.O.Box 301
San Mateo, CA 94401
Site: 540 and 570 Crespi Dr, Pacifica
Dear Brendan,
At your request I visited the above site for the purpose of inspecting and commenting on the Heritage trees around the property. A new construction is planned, prompting the need for this tree protection report.
This report supersedes previous reports dating back to 2018. Since the first report was generated in December 7, 2018, more trees have been added to the scope of the report, some trees have grown and become Heritage trees, some trees have declined and others have completely died.
Method:
Heritage trees are defined as any trees within the City of Pacifica, exclusive of eucalyptus, which have a trunk with a circumference of fifty (50”) inches (approximately sixteen (16”) inches in diameter) or more, measured at twenty-four (24”) inches above the natural grade.
The location of the Heritage trees on this site can be found on the plan provided by you. Each tree is given an identification number. The trees are measured at 24 inches above ground level (DBH or Diameter at Breast Height). A condition rating of 1 to 100 is assigned to each tree representing form and vitality on the following scale:
1 to 29 Very Poor
30 to 49 Poor
50 to 69 Fair
70 to 89 Good
90 to 100 Excellent
The height and spread of each tree is estimated. A Comments section is provided for any significant observations affecting the condition rating of the tree.
A Summary and Tree Protection Plan are at the end of the end of the survey providing recommendations for maintaining the health and condition of the trees during and after construction.
If you have any questions, please don’t hesitate to call.
Sincerely
Robert Weatherill
Certified Arborist WE 1936A
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree Survey
Tree# Species DBH Ht/Sp Con Rating Comments
1 Monterey cypress 35.1”/30.3”/36.7”/34.3” 60/50 60 Fair health and condition Cupressus macrocarpa Unmaintained, large tree with
multiple trunks from grade. Multiple
limb failure on south side of canopy
Heritage
2 Monterey pine 33.8” 30/25 0 Dead
Pinus radiata Heritage
3 Monterey cypress 39.0” 50/30 50 Fair health and condition, Cupressus macrocarpa Unmaintained, trimmed for
PG and E. Heritage
4 Monterey cypress 60” 50/50 40 Poor health and condition, declining Cupressus macrocarpa Unmaintained, large tree with some large dead wood and broken limbs
Heritage
5 Monterey cypress 46.3”/26.1”/18.2”/12.6” 50/60 60 Fair health and condition Cupressus macrocarpa Unmaintained, large tree with
multiple trunks from grade. Heritage
6 Monterey cypress 35.2” 30/40 60 Fair health and condition, Cupressus macrocarpa Unmaintained. Heritage
7 Monterey cypress 12.6/10.2” 20/20 60 Good health, fair condition, Cupressus macrocarpa multi stemmed at grade
Heritage
8 Monterey cypress 48.7” 35/40 60 Fair health and condition, topped Cupressus macrocarpa and raised up. Full of dead wood.
Heritage
9 Monterey cypress 38.2” 30/30 60 Fair health and condition, topped Cupressus macrocarpa and raised up. Full of dead wood.
Heritage
10 Monterey cypress 34.0” 30/30 60 Fair health and condition, topped Cupressus macrocarpa and raised up. Full of dead wood.
Heritage
11 Monterey cypress 25.5” 20/25 40 Poor health and condition, thin Cupressus macrocarpa canopy and full of dead wood.
Heritage
12 Hollywood juniper 10 at 4 to 5” diameter 18/20 70 Good health and condition, multi Juniperus ‘Hollywood’ trunked at grade. Heritage
13 Monterey cypress 25.5” 25/30 60 Fair health and condition, topped Cupressus macrocarpa and raised up. Full of dead wood.
Heritage
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Summary:
The trees on the site are mostly coastal native trees in varying health and condition. The trees can be seen in the attached photos.
Tree # 1 is a large Heritage Monterey cypress. The tree has not been maintained for many years and is in fair health and condition. It has multiple trunks from grade, the canopy is thick and healthy but has collapsed on the south side of the tree. The tree is located in the middle of the lot at the front of the property. The proposed construction will be at the front of the property to preserve the natural swale and wildlife area at the rear of the property; therefore, this tree will be removed. Its location and the location of the proposed construction can be seen on the attached drawing.
Tree # 2 is dead and should be removed.
Tree # 3 is a Heritage Monterey cypress at the front corner of the property. The tree is in fair health and condition but poorly located. The tree has many broken branches, and the canopy has been heavily pruned on one side to accommodate PG and E. This tree should be removed but it has been requested to be retained and protected during construction.
Tree # 4 is a Heritage Monterey cypress located on the adjacent property. The tree is in poor health and condition and is located very close to the proposed construction. The tree may not survive construction but all attempts to work around the tree and keep it alive will be made.
Tree #s 5 and 6 are Heritage Monterey cypresses in fair health and condition but have not been maintained for many years. Both trees will be removed.
Tree # 7 has become a ‘Heritage’ Monterey cypress since the project began. The tree is very close to a utility vault and will be removed
Tree #s 8, 9, 10, 11, 12 and 13 are Heritage trees that will be retained and should be protected during construction.
7 Heritage trees will be removed; there should be a tree replacement plan to accommodate the loss of canopy on this site.
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 1: Monterey Cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 2: Monterey Pine
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 3: Monterey Cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 4 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 5 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 6 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 7 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 8 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree #s 9 and 10 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 11 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 12 Hollywood juniper
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree # 13 Monterey cypress
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Location of existing Heritage trees, proposed tree removals and Tree Protection Zones Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Tree Protection Plan
1. The Tree Protection Zone (TPZ) should be defined with protective fencing. This should be cyclone or chain link fencing on 11
/2” or 2” posts driven at least 2 feet into the ground standing at least 6 feet tall.
Normally a TPZ is defined by the dripline of the tree. This can be reduced to edge of proposed curb and edge of proposed construction as shown on the drawing in a thick red line in accordance with Type I Tree Protection as outlined and illustrated in image 2.15-1 and 2 (6) .
2. Any pruning and maintenance of the trees shall be carried out before construction begins. This should allow for any clearance requirements for both the new structure and any construction machinery. This will eliminate the possibility of damage during construction. The pruning should be carried out by an arborist, not by construction personnel. No limbs greater than 4” in diameter shall be removed.
Tree # 4 will require the removal of one large (greater than 4” in diameter) main scaffold limb back to the trunk to accommodate the new construction. This should be done prior to construction. The pruning should be carried out by an arborist, not by construction personnel.
All trees that will be retained require some level of maintenance. The pruning should be carried out by an arborist, not by construction personnel prior to construction.
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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3. Any excavation in ground where there is a potential to damage roots of 1” or more in diameter should be carefully hand dug. Where possible, roots should be dug around rather than cut.(2).
Any excavation within the TPZ should be done by hand under Arborist supervision.
Any excavation beneath the canopy of Tree # 3 should be done by hand, no roots greater than 2” in diameter should be cut. The pavement within the TPZ of Tree #3 should be constructed with permeable media such as pavers or gravel to enable percolation of water and oxygen to the root system.
Edge of curb should be no closer than 3 feet from face of the trunk of the tree, to prevent any damage to the base of the trunk of the tree
The proposed new parking spaces within the dripline of Tree # 4 should be constructed with permeable media such as pavers or gravel to enable percolation of water and oxygen to the root system.
The proposed area between the trunk of the tree and the proposed new building within the drip line of the tree should be constructed with permeable media such as pavers or gravel to enable percolation of water and oxygen to the root system.
Balcony footings within the TPZ of Tree # 4 should be piers where the first 2 feet of each pier within the TPZ should be located and hand dug to avoid any conflict with roots.
Tree #s 3 and 4 should be deep root fertilized with 600 gallons of 22 14 14 fertilizer prior to breaking ground to encourage healthy new root growth.
4. If roots are broken, every effort should be made to remove the damaged area and cut it back to its closest lateral root. A clean cut should be made with a saw or pruners. This will prevent any infection from damaged roots spreading throughout the root system and into the tree.(2)
5. Do Not:.(4)
a. Allow run off or spillage of damaging materials into the area below any tree canopy. b. Store materials, stockpile soil, park or drive vehicles within the TPZ of the tree. c. Cut, break, skin or bruise roots, branches or trunk without first obtaining permission from the city arborist.
d. Allow fires under any adjacent trees.
e. Discharge exhaust into foliage.
f. Secure cable, chain or rope to trees or shrubs.
g. Apply soil sterilants under pavement near existing trees.
6. Where roots are exposed, they should be kept covered with the native soil or four layers of wetted, untreated burlap. Roots will dry out and die if left exposed to the air for too long.(4) Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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7. Route pipes into alternate locations to avoid conflict with roots.(4)
8. Where it is not possible to reroute pipes or trenches, the contractor is to bore beneath the dripline of the tree. The boring shall take place no less than 3 feet below the surface of the soil in order to avoid encountering “feeder” roots.(4)
9. Compaction of the soil within the dripline shall be kept to a minimum.(2) If access is required to go through the TPZ of a protected tree, the area within the TPZ should be protected from compaction either with steel plates or with 4” of wood chip overlaid with plywood.
10. Any damage due to construction activities shall be reported to the project arborist or city arborist within 6 hours so that remedial action can be taken.
11. Ensure upon completion of the project that the original ground level is restored.
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Glossary
Canopy The part of the crown composed of leaves and small twigs.(2) Dripline The width of the crown as measured by the lateral extent of the foliage.(1) Genus A classification of plants showing similar characteristics.
Species A Classification that identifies a particular plant.
Standard Height at which the girth of the tree is measured. Typically 4 1/2 feet above height ground level
References
(1) Matheny, N.P., and Clark, J.P. Evaluation of Hazard Trees in Urban Areas.
International Society of Arboriculture,1994.
(2) Harris, R.W., Matheny, N.P. and Clark, J.R.. Arboriculture: Integrated Management of Landscape Trees, Shrubs and Vines. Prentice Hall, 1999. (3) Carlson, Russell E. Paulownia on The Green: An Assessment of Tree Health and Structural Condition. Tree Tech Consulting, 1998.
(4) Extracted from a copy of Tree Protection guidelines. Anon (5) T. D. Sydnor, Arboricultural Glossary. School of Natural Resources, 2000 (6) D Dockter, Tree Technical Manual. City of Palo Alto, June, 2001 Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Certification of Performance(3)
I, Robert Weatherill certify:
* That I have personally inspected the tree(s) and/or the property referred to in this report, and have stated my findings accurately. The extent of the evaluation and appraisal is stated in the attached report and the Terms and Conditions; * That I have no current or prospective interest in the vegetation or the property that is the subject of this report, and I have no personal interest or bias with respect to the parties involved;
* That the analysis, opinions and conclusions stated herein are my own, and are based on current scientific procedures and facts;
* That my compensation is not contingent upon the reporting of a predetermined conclusion that favors the cause of the client or any other party, nor upon the results of the assessment, the attainment of stipulated results, or the occurrence of any subsequent events;
* That my analysis, opinions, and conclusions were developed and this report has been prepared according to commonly accepted Arboricultural practices; * That no one provided significant professional assistance to the consultant, except as indicated within the report.
I further certify that I am a member of the International Society of Arboriculture and a Certified Arborist. I have been involved in the practice of arboriculture and the care and study of trees for over 20 years.
Signed
Robert Weatherill
Certified Arborist WE 1936a
Date: 6/3/22
Advanced Tree Care 540 and 570 Crespi Dr, Pacifica
965 East San Carlos Ave, San Carlos June 3, 2022
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Terms and Conditions(3)
The following terms and conditions apply to all oral and written reports and correspondence pertaining to consultations, inspections and activities of Advanced Tree Care :
1. All property lines and ownership of property, trees, and landscape plants and fixtures are assumed to be accurate and reliable as presented and described to the consultant, either verbally or in writing. The consultant assumes no responsibility for verification of ownership or locations of property lines, or for results of any actions or recommendations based on inaccurate information.
2. It is assumed that any property referred to in any report or in conjunction with any services performed by Advanced Tree Care, is not in violation of any applicable codes, ordinances, statutes, or other governmental regulations, and that any titles and ownership to any property are assumed to be good and marketable. Any existing liens and encumbrances have been disregarded.
3. All reports and other correspondence are confidential, and are the property of Advanced Tree Care and it’s named clients and their assignees or agents. Possession of this report or a copy thereof does not imply any right of publication or use for any purpose, without the express permission of the consultant and the client to whom the report was issued. Loss, removal or alteration of any part of a report invalidates the entire appraisal/evaluation.
4. The scope of any report or other correspondence is limited to the trees and conditions specifically mentioned in those reports and correspondence. Advanced Tree Care and the consultant assume no liability for the failure of trees or parts of trees, either inspected or otherwise. The consultant assumes no responsibility to report on the condition of any tree or landscape feature not specifically requested by the named client.
5. All inspections are limited to visual examination of accessible parts, without dissection, excavation, probing, boring or other invasive procedures, unless otherwise noted in the report. No warrantee or guarantee is made, expressed or implied, that problems or deficiencies of the plants or the property will not occur in the future, from any cause. The consultant shall not be responsible for damages caused by any tree defects, and assumes no responsibility for the correction of defects or tree related problems.
6. The consultant shall not be required to provide further documentation, give testimony, be deposed, or attend court by reason of this appraisal/report unless subsequent contractual arrangements are made, including payment of additional fees for such services as described by the consultant or in the fee schedules or contract.
7. Advanced Tree Care has no warrantee, either expressed or implied, as to the suitability of the information contained in the reports for any purpose. It remains the responsibility of the client to determine applicability to his/her particular case.
8. Any report and the values, observations, and recommendations expressed therein represent the professional opinion of the consultants, and the fee for services is in no manner contingent upon the reporting of a specified value nor upon any particular finding to be reported.
9. Any photographs, diagrams, graphs, sketches, or other graphic material included in any report, being intended solely as visual aids, are not necessarily to scale and should not be construed as engineering reports or surveys, unless otherwise noted in the report. Any reproductions of graphs material or the work product of any other persons is intended solely for the purpose of clarification and ease of reference.
Inclusion of said information does not constitute a representation by Advanced Tree Care or the consultant as to the sufficiency or accuracy of that information.