ESR, Inc.
P.O. Box 4086
Oakhurst, CA 93644
Office (559) 683-5335
[email protected]
1 August 1, 2018
Madison MRH-1 Franklin LLC
30423 Canwood Street
Suite #126
Agoura Hills, CA 91301
For the attention of Tom Hix
RE: Franklin Canyon Golf Course Conversion Tree Survey
Dear Mr. Hix:
As requested, ESR, Inc. (ESR) conducted a bas eline tree survey for the conversion of the 18-hole Franklin Canyon Golf Course into a 9-hole golf course with a RV park and amenities in Contra Costa County (County) near the City of Hercules (City), California.
The trees located on the course that may or may not be removed or impacted were identified and assessed following Contra Costa County and the City of Hercules tree ordinances. The survey was conducted within the front nine and driving range portion of the course including a 50 foot buffer as these are the only areas that would realistically be affected by the proposed project reconfiguration. The trees within the riparian areas adjacent to the site will not be impacted by the project.
A tree survey is required to obtain the tree removal permits from Contra Costa County and the City of Hercules should any qualifying trees be slated for removal. The two regulatory entities have different tree ordinanc es and surveying requirements. Primarily, both governmental entities have different diameter and tree species requirements. Refer to the Appendices for the attached Contra Costa County and the City of Hercules ordinances.
Contra Costa County requires a tree survey to identify if any of the 26 specific native tree species would be impacted by the project. The defining parameter for these types of surveys is the diameter of the tree at breas t height (~4.5 feet) or the circumference at breast height.
ESR, Inc.
2 Contra Costa County requires that the listed 26 trees with a circumference of 20 inches (~6.5 inches) at diameter breast height (dbh) or more that lie within 50 feet of proposed grading should be included in the survey or if any grove of trees (4 or more) are to be impacted should be surveyed without regard for diameter. The Contra Costa County native tree list for species greater than 6.5 inches (20 inches circumference) dbh includes the following:
Acer macrophyllum (Bigleaf maple)
Acer negundo (Box elder)
Aesculus californica (California buckeye)
Alnus rhombifolia (White alder)
Arbutus menziesii (Madrone)
Heteromeles arbutifolia (Toyon)
Juglans hindsii (California black walnut)
Lithocarpus densiflora (Tanoak)
Pinus attenuata (Knobcone pine)
Pinus sabiniana (Digger pine)
Platanus racemosa (California sycamore)
Populus fremontii (Fremont cottonwood)
Populus trichocarpa (Black cottonwood)
Quercus agrifolia (Coast live oak)
Quercus chrysolepis (Canyon live oak)
Quercus douglasii (Blue oak)
Quercus kelloggii (California black oak)
Quercus lobata (Valley oak)
Quercus wislizenii (Interior live oak)
Salix lasiandra (Yellow willow)
Salix lasiolepis (Red willow)
Sambucus callicarpa (Coast red elderberry)
Sequoia sempervirens (Coast redwood)
Umbellularia californica (Laurel)
The City of Hercules has a different qualifying parameter for tree removal. The City of Hercules does not differentiate between native and non-native tree species but lumps them together as “mature trees”. A “mature tree” is any living tree with a trunk diameter at breast height of 12 inches or greater. Additionally, removal of more than one third of the foliage of a “mature” tree would be considered tree removal. Consequently there are instances where a qualifying native tree on the Contra Costa County list may not qualify on the City of Hercules list. For example there are several occurrences of Quercus agrifolia (Coast live oak) that are greater than 6.5 inches dbh, which qualify for the County, but are less than 12 inches dbh and therefore do not qualify under the City of Hercules “mature” tree ordinance.
ESR visited the site on July 24, 2018 and July 27, 2018 to identify and catalog the trees.
After visiting the site, seeing the new layout, and the types of trees located on the course, it is our professional opinion that an arborist is not warranted until the trees are permitted through the County or City for removal. The removal of any of the qualifying trees will need to be replaced based on the suggested replacement plan.
ESR, Inc.
3 ESR conducted the tree survey and assessment of the qualifying trees at the site based on the requirements of both Contra Costa County and the City of Hercules tree ordinances. The methodology for the field portion of the survey was to identify which trees to include, measure the qualifying trees, identify the species of the tree, GPS the tree location, and compile the data into tabular form for inclusion into this tree survey report which will be submitted to assist with the issuance of the tree removal permits.
No encumbering conditions (e.g. bad weather, access restrictions, etc.) that would bias the conclusions of this report were experienced during the conduction of the survey. A few areas were avoided due to thick assemblages of Poison oak ( Toxicodendron diversilobum). On the survey days, weather was sunny to partly cloudy with an approximate air temperature of between 55
o F and 85o F. Upon each visit, the biologists
collected data throughout the project site by conducting thorough pedestrian surveys with Global Positioning System (GPS) units. All tree species encountered were positively identified, mapped, and were categorized.
It should be noted that even though GPS equipment with sub-meter accuracy was utilized during the surveys, a dilution of precision is always possible depending on the location of the satellites during the data recordation process. Additionally, the Geographic Information System (GIS) maps created using the ArcMap program were prepared based on the importation of shapefiles and metafiles from various georeferenced sources which can cause minor discrepancies in the placement of the data. Nonetheless, the maps generated from the recorded data are adequate for these levels of survey but should be used for planning purposes only and are not intended to be engineered designs.
During the field surveying effort 279 trees were assessed. Trees that were clearly smaller than the qualifying parameters were not assessed further. Nineteen (19) of the measured trees did not meet either the County or the City parameters for inclusion as a qualifying tree but were measured to ensure that they did not meet qualifying parameters.
The remaining 260 trees evaluated qualified either as a County protected tree or as a City protected tree. Using the County qualifying parameters, 120 trees are greater than
6.5 inches dbh and are one of the 26 native trees listed in the ordinance. Using the City qualifying parameters 227 trees qualify as “mature” trees. There was an overlap for some 87 trees that qualified in both the County and the City ordinances. The following table provides the tabulation of the measured trees at the site. Refer to the attached figures for a graphic depiction of the tree locations and the corresponding identification number.
ESR, Inc.
4 Table 1 - Franklin Canyon CG Tree Survey Results
ID# Scientific Name Co mmon Name Code Trunks Diameter
(inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
1 Quercus agrifolia Coast live oak QA 1 16.0 Y Y -122.21586 38.00662 2 Liquidambar styraciflua American sweet gum LS 1 19.4 N Y -122.21604 38.00647 3 Liquidambar styraciflua American sweet gum LS 1 16.1 N Y -122.21608 38.00643 4 Liquidambar styraciflua American sweet gum LS 1 14.5 N Y -122.21615 38.00642 5 Quercus agrifolia Coast live oak QA 2 17.4, 18.4 Y Y -122.21656 38.00629 6 Eucalyptus globulus Blue gum EG 1 14.1 N Y -122.21738 38.00616 7 Eucalyptus globulus Blue gum EG 1 34.5 N Y -122.21741 38.00611 8 Pinus rabiata Monterey pine PR 1 22.6 N Y -122.21765 38.00609 9 Pinus rabiata Monterey pine PR 1 28.2 N Y -122.21773 38.00605 10 Pinus rabiata Monterey pine PR 1 28.6 N Y -122.21839 38.00594 11 Pinus rabiata Monterey pine PR 1 14.6 N Y -122.21845 38.00590 12 Pinus rabiata Monterey pine PR 1 16.1 N Y -122.21867 38.00589 13 Pinus rabiata Monterey pine PR 1 25.2 N Y -122.21911 38.00585 14 Pinus rabiata Monterey pine PR 1 29.6 N Y -122.21910 38.00580 15 Quercus kelloggii Black oak QK 1 25.2 Y Y -122.21642 38.00558 16 Liquidambar styraciflua American sweet gum LS 1 9.6 N N -122.21646 38.00548 17 Liquidambar styraciflua American sweet gum LS 1 12.3 N Y -122.21651 38.00541 18 Liquidambar styraciflua American sweet gum LS 1 13.0 N Y -122.21650 38.00529 19 Juglans regia English walnut JR 1 13.3 N Y -122.21659 38.00531 20 Morus alba Mulberry MA 1 9.6 N N -122.21664 38.00520 21 Pinus rabiata Monterey pine PR 1 27.5 N Y -122.21659 38.00512 22 Quercus kelloggii Black oak QK 1 13.2 Y Y -122.21674 38.00518 23 Quercus kelloggii Black oak QK 1 26.0 Y Y -122.21678 38.00523 ESR, Inc.
5 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
24 Quercus agrifolia Coast live oak QA 1 10.3 Y Y -122.21657 38.00477 25 Pinus rabiata Monterey pine PR 1 27.1 N Y -122.21678 38.00457 26 Quercus agrifolia Coast live oak QA 1 10.0 Y N -122.21667 38.00436 27 Pinus rabiata Monterey pine PR 1 32.2 N Y -122.21681 38.00414 28 Pinus rabiata Monterey pine PR 1 33.0 N Y -122.21672 38.00404 29 Quercus agrifolia Coast live oak QA 1 19.0 Y Y -122.21731 38.00345 30 Fraxinus latifolia Oregon ash FL 1 6.1 N N -122.21694 38.00331 31 Quercus agrifolia Coast live oak QA 1 19.0 Y Y -122.21690 38.00284 32 Pinus rabiata Monterey pine PR 1 27.0 N Y -122.21686 38.00278 33 Pinus rabiata Monterey pine PR 1 28.5 N Y -122.21676 38.00266 34 Quercus agrifolia Coast live oak QA 1 12.9 Y Y -122.21690 38.00257 35 Quercus agrifolia Coast live oak QA 2 13.2, 9.0 Y Y -122.21688 38.00252 36 Quercus agrifolia Coast live oak QA 1 15.0 Y Y -122.21684 38.00239 37 Pinus rabiata Monterey pine PR 1 32.5 N Y -122.21674 38.00243 38 Quercus agrifolia Coast live oak QA 1 11.0 Y N -122.21671 38.00222 39 Pinus rabiata Monterey pine PR 1 32.8 N Y -122.21652 38.00205 40 Quercus agrifolia Coast live oak QA 2 14.7, 21 Y Y -122.21658 38.00199 41 Quercus agrifolia Coast live oak QA 1 15.0 Y Y -122.21657 38.00196 42 Pinus rabiata Monterey pine PR 1 20.0 N Y -122.21657 38.00194 43 Quercus agrifolia Coast live oak QA 1 12.1 Y Y -122.21656 38.00190 44 Sequoia sempervirens Coast redwood SS 1 45.5 Y Y -122.21656 38.00185 45 Quercus agrifolia Coast live oak QA 1 8.6 Y N -122.21676 38.00176 46 Quercus agrifolia Coast live oak QA 1 7.6 Y N -122.21675 38.00174 47 Quercus agrifolia Coast live oak QA 1 7.2 Y N -122.21673 38.00170 48 Quercus agrifolia Coast live oak QA 1 7.5 Y N -122.21671 38.00172 ESR, Inc.
6 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
49 Quercus agrifolia Coast live oak QA 1 7.5 Y N -122.21670 38.00168 50 Quercus agrifolia Coast live oak QA 1 28.3 Y Y -122.21633 38.00159 51 Quercus agrifolia Coast live oak QA 1 10.4 Y N -122.21646 38.00135 52 Quercus agrifolia Coast live oak QA 1 8.9 Y N -122.21646 38.00130 53 Quercus agrifolia Coast live oak QA 1 9.1 Y N -122.21643 38.00130 54 Quercus agrifolia Coast live oak QA 1 9.2 Y N -122.21639 38.00128 55 Quercus agrifolia Coast live oak QA 1 6.1 Y N -122.21636 38.00124 56 Quercus agrifolia Coast live oak QA 2 8.0, 9.8 Y Y -122.21576 38.00032 57 Quercus agrifolia Coast live oak QA 1 17.0 Y Y -122.21572 38.00036 58 Pinus rabiata Monterey pine PR 1 30.4 N Y -122.21554 38.00027 59 Pinus rabiata Monterey pine PR 1 25.0 N Y -122.21545 38.00024 60 Quercus agrifolia Coast live oak QA 1 27.0 Y Y -122.21515 38.00020 61 Quercus agrifolia Coast live oak QA 1 13.0 Y Y -122.21490 38.00050 62 Pinus rabiata Monterey pine PR 1 28.0 N Y -122.21491 38.00055 63 Quercus agrifolia Coast live oak QA 1 15.0 Y Y -122.21488 38.00063 64 Pinus rabiata Monterey pine PR 1 46.0 N Y -122.21487 38.00071 65 Pinus rabiata Monterey pine PR 1 33.0 N Y -122.21489 38.00079 66 Pinus rabiata Monterey pine PR 1 26.0 N Y -122.21492 38.00088 67 Fraxinus latifolia Oregon ash FL 1 19.6 N Y -122.21527 38.00078 68 Eucalyptus globulus Blue gum EG 1 70.0 N Y -122.21534 38.00113 69 Quercus agrifolia Coast live oak QA 1 9.3 Y N -122.21539 38.00102 70 Sequoia sempervirens Coast redwood SS 1 12.6 Y Y -122.21552 38.00119 71 Quercus agrifolia Coast live oak QA 1 11.5 Y N -122.21570 38.00132 72 Betula sp. Birch BS 1 14.6 N Y -122.21581 38.00165
73 Betula sp. Birch BS 1 12.6 N Y -122.21593 38.00153
ESR, Inc.
7 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
74 Eucalyptus globulus Blue gum EG 1 56.0 N Y -122.21612 38.00175 75 Platanus x Acerifolia London planetree PA 1 18.7 N Y -122.21606 38.00181 76 Quercus kelloggii Black oak QK 1 28.0 Y Y -122.21502 38.00146 77 Quercus kelloggii Black oak QK 1 25.0 Y Y -122.21481 38.00115 78 Sequoia sempervirens Coast redwood SS 1 12.9 Y Y -122.21486 38.00123 79 Pinus rabiata Monterey pine PR 1 40.0 N Y -122.21531 38.00217 80 Pinus rabiata Monterey pine PR 1 36.0 N Y -122.21534 38.00228 81 Eucalyptus globulus Blue gum EG 1 65.0 N Y -122.21593 38.00234 82 Eucalyptus globulus Blue gum EG 1 96.0 N Y -122.21601 38.00247 83 Quercus agrifolia Coast live oak QA 1 43.0 Y Y -122.21618 38.00275 84 Quercus agrifolia Coast live oak QA 1 29.0 Y Y -122.21607 38.00280 85 Salix alba White willow SA 4 28, 28, 15,
23 N Y -122.21617 38.00289
86 Pinus rabiata Monterey pine PR 1 44.0 N Y -122.21626 38.00296 87 Pinus rabiata Monterey pine PR 1 24.0 N Y -122.21608 38.00313 88 Pinus rabiata Monterey pine PR 1 25.0 N Y -122.21608 38.00323 89 Quercus agrifolia Coast live oak QA 1 13.6 Y Y -122.21504 38.00245 90 Quercus agrifolia Coast live oak QA 1 15.0 Y Y -122.21508 38.00256 91 Quercus agrifolia Coast live oak QA 1 9.9 Y N -122.21506 38.00262 92 Quercus agrifolia Coast live oak QA 1 8.8 Y N -122.21509 38.00266 93 Quercus agrifolia Coast live oak QA 1 22.8 Y Y -122.21508 38.00282 94 Quercus agrifolia Coast live oak QA 2 14, 13.1 Y Y -122.21500 38.00284 95 Quercus agrifolia Coast live oak QA 1 9.3 Y N -122.21503 38.00290 96 Quercus agrifolia Coast live oak QA 1 18.4 Y Y -122.21528 38.00301 97 Quercus agrifolia Coast live oak QA 1 18.5 Y Y -122.21534 38.00309 ESR, Inc.
8 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
98 Quercus agrifolia Coast live oak QA 1 11.2 Y N -122.21539 38.00316 99 Quercus agrifolia Coast live oak QA 2 8.6, 9.6 Y Y -122.21546 38.00328 100 Quercus agrifolia Coast live oak QA 1 32.0 Y Y -122.21547 38.00333 101 Quercus agrifolia Coast live oak QA 1 13.3 Y Y -122.21554 38.00336 102 Quercus agrifolia Coast live oak QA 1 15.8 Y Y -122.21553 38.00343 103 Magnolia alba Magnolia MA 1 12.2 N Y -122.21561 38.00336 104 Magnolia alba Magnolia MA 1 12.7 N Y -122.21571 38.00338 105 Pinus rabiata Monterey pine PR 1 29.0 N Y -122.21552 38.00356 106 Quercus agrifolia Coast live oak QA 1 10.0 Y N -122.21546 38.00382 107 Pinus rabiata Monterey pine PR 1 14.0 N Y -122.21548 38.00396 108 Alnus rubens Red alder AR 1 20.5 N Y -122.21577 38.00394 109 Alnus rubens Red alder AR 1 15.7 N Y -122.21576 38.00403 110 Pinus rabiata Monterey pine PR 1 18.3 N Y -122.21607 38.00406 111 Sequoia sempervirens Coast redwood SS 1 10.0 Y N -122.21602 38.00419 112 Sequoia sempervirens Coast redwood SS 1 6.5 Y N -122.21595 38.00423 113 Sequoia sempervirens Coast redwood SS 1 8.6 Y N -122.21601 38.00432 114 Pinus rabiata Monterey pine PR 1 19.5 N Y -122.21584 38.00430 115 Pinus rabiata Monterey pine PR 1 28.6 N Y -122.21581 38.00437 116 Pinus rabiata Monterey pine PR 1 24.5 N Y -122.21584 38.00445 117 Quercus agrifolia Coast live oak QA 1 16.3 Y Y -122.21546 38.00413 118 Quercus agrifolia Coast live oak QA 1 36.0 Y Y -122.21542 38.00424 119 Alnus rubens Red alder AR 1 13.7 N Y -122.21575 38.00462 120 Alnus rubens Red alder AR 1 17.7 N Y -122.21579 38.00468 121 Platanus x Acerifolia London planetree PA 1 14.8 N Y -122.21588 38.00499 122 Platanus x Acerifolia London planetree PA 1 15.1 N Y -122.21588 38.00522 ESR, Inc.
9 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
123 Quercus agrifolia Coast live oak QA 1 46.4 Y Y -122.21565 38.00573 124 Fraxinus latifolia Oregon ash FL 1 17.5 N Y -122.21552 38.00612 125 Quercus agrifolia Coast live oak QA 2 9.3, 11.1 Y Y -122.21548 38.00627 126 Quercus agrifolia Coast live oak QA 1 11.3 Y N -122.21560 38.00624 127 Quercus agrifolia Coast live oak QA 1 10.8 Y N -122.21567 38.00627 128 Quercus agrifolia Coast live oak QA 1 7.0 Y N -122.21573 38.00630 129 Quercus agrifolia Coast live oak QA 2 13.8, 8.1 Y Y -122.21581 38.00637 130 Quercus lobata Valley oak QL 1 64.0 Y Y -122.21592 38.00634 131 Liquidambar styraciflua American sweet gum LS 1 14.1 N Y -122.21571 38.00538 132 Liquidambar styraciflua American sweet gum LS 1 17.6 N Y -122.21564 38.00539 133 Pinus rabiata Monterey pine PR 1 42.0 N Y -122.21563 38.00533 134 Betula sp. Birch BS 1 16.7 N Y -122.21543 38.00534
135 Betula sp. Birch BS 1 12.8 N Y -122.21523 38.00527
136 Betula sp. Birch BS 1 17.4 N Y -122.21513 38.00503
137 Betula sp. Birch BS 1 9.3 N N -122.21521 38.00485
138 Sequoia sempervirens Coast redwood SS 1 22.7 Y Y -122.21538 38.00462 139 Fraxinus latifolia Oregon ash FL 1 18.1 N Y -122.21524 38.00478 140 Fraxinus latifolia Oregon ash FL 1 15.4 N Y -122.21527 38.00466 141 Cedrus deodara Himalayan cedar CD 1 19.2 N Y -122.21512 38.00464 142 Quercus agrifolia Coast live oak QA 1 9.4 Y N -122.21428 38.00426 143 Quercus agrifolia Coast live oak QA 1 14.9 Y Y -122.21411 38.00414 144 Quercus agrifolia Coast live oak QA 1 9.0 Y N -122.21417 38.00403 145 Quercus agrifolia Coast live oak QA 1 10.2 Y N -122.21409 38.00396 146 Platanus x Acerifolia London planetree PA 1 10.0 N N -122.21336 38.00371 147 Cedrus deodara Himalayan cedar CD 1 17.3 N Y -122.21320 38.00361 ESR, Inc.
10 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
148 Betula sp. Birch BS 1 9.6 N N -122.21264 38.00342
149 Betula sp. Birch BS 1 10.8 N N -122.21266 38.00349
150 Platanus racemosa California sycamore PR 1 13.5 Y Y -122.21259 38.00346 151 Arbutus menziesii Madrone ARM 1 19.2 Y Y -122.21248 38.00326 152 Arbutus menziesii Madrone ARM 1 16.3 Y Y -122.21228 38.00313 153 Platanus x Acerifolia London planetree PA 1 9.3 N N -122.21215 38.00332 154 Quercus agrifolia Coast live oak QA 2 11.5, 15.2 Y Y -122.21207 38.00302 155 Betula sp. Birch BS 1 12.7 N Y -122.21194 38.00340
156 Pinus rabiata Monterey pine PR 1 33.6 N Y -122.21212 38.00362 157 Pinus rabiata Monterey pine PR 1 88.0 N Y -122.21211 38.00374 158 Sequoia sempervirens Coast redwood SS 1 13.3 Y Y -122.21284 38.00499 159 Sequoia sempervirens Coast redwood SS 1 13.9 Y Y -122.21292 38.00509 160 Quercus lobata Valley oak QL 1 15.4 Y Y -122.21285 38.00547 161 Platanus x Acerifolia London planetree PA 1 19.5 N Y -122.21308 38.00537 162 Platanus x Acerifolia London planetree PA 1 14.7 N Y -122.21300 38.00545 163 Platanus x Acerifolia London planetree PA 1 16.3 N Y -122.21307 38.00549 164 Morus alba Mulberry MA 1 10.7 N N -122.21303 38.00558 165 Morus alba Mulberry MA 1 12.8 N Y -122.21291 38.00558 166 Platanus x Acerifolia London planetree PA 1 14.8 N Y -122.21342 38.00568 167 Pinus ponderosa Ponderosa pine PP 1 29.0 N Y -122.21373 38.00586 168 Quercus agrifolia Coast live oak QA 2 8.6, 10.0 Y Y -122.21378 38.00588 169 Fraxinus latifolia Oregon ash FL 1 11.7 N N -122.21388 38.00585 170 Platanus x Acerifolia London planetree PA 1 13.3 N Y -122.21393 38.00605 171 Sequoia sempervirens Coast redwood SS 1 11.7 Y N -122.21408 38.00588 172 Acer negundo Box elder AN 1 15.7 Y Y -122.21421 38.00590 ESR, Inc.
11 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
173 Quercus lobata Valley oak QL 1 29.0 Y Y -122.21476 38.00612 174 Pinus jeffreyi Jeffrey pine PJ 1 31.0 N Y -122.21487 38.00615 175 Sequoia sempervirens Coast redwood SS 1 31.0 Y Y -122.21522 38.00620 176 Sequoia sempervirens Coast redwood SS 1 50.0 Y Y -122.21519 38.00562 177 Sequoia sempervirens Coast redwood SS 1 63.0 Y Y -122.21510 38.00556 178 Sequoia sempervirens Coast redwood SS 1 55.0 Y Y -122.21500 38.00550 179 Salix lasiandra Yellow willow SLA 2 48, 16.8 Y Y -122.21462 38.00541 180 Salix lasiandra Yellow willow SLA 6
17.0,16.0,
14.0, 15.0,
15.0, 17.0 Y Y -122.21462 38.00536
181 Salix lasiandra Yellow willow SLA 3
17.0,16.0,
22.0 Y Y -122.21467 38.00529
182 Quercus agrifolia Coast live oak QA 1 10.5 Y N -122.21465 38.00524 183 Quercus agrifolia Coast live oak QA 2 6.5, 7.5 Y Y -122.21457 38.00523 184 Salix lasiandra Yellow willow SLA 5
15.9, 32, 8,
14.9, 12.8 Y Y -122.21375 38.00458
185 Cedrus deodara Himalayan cedar CD 1 15.4 N Y -122.21365 38.00458 186 Betula sp. Birch BS 1 10.1 N N -122.21351 38.00470
187 Betula sp. Birch BS 1 8.8 N N -122.21341 38.00465
188 Salix lasiandra Yellow willow SLA 1 43.0 Y Y -122.21347 38.00475 189 Salix laevigata Red willow SL 5
7.5, 6.5, 8.5,
6.6, 6.5 Y Y -122.21376 38.00530
190 Betula sp. Birch BS 2 9.5, 7.1 N Y -122.21335 38.00453 191 Alnus oregona Red alder AO 1 21.7 N Y -122.21335 38.00439 ESR, Inc.
12 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
192 Eucalyptus globulus Blue gum EG 3
20.0, 18.0,
19.0 N Y -122.21309 38.00432
193 Pinus rabiata Monterey pine PR 1 32.0 N Y -122.21298 38.00436 194 Prunus mume Ornamental plum PM 1 15.3 N Y -122.21298 38.00421 195 Sequoia sempervirens Coast redwood SS 1 50.0 Y Y -122.21288 38.00412 196 Sequoia sempervirens Coast redwood SS 2 19.0, 23.0 Y Y -122.21276 38.00407 197 Fraxinus latifolia Oregon ash FL 1 11.8 N N -122.21265 38.00400 198 Fraxinus latifolia Oregon ash FL 1 11.8 N N -122.21255 38.00405 199 Fraxinus latifolia Oregon ash FL 1 15.8 N Y -122.21115 38.00331 200 Platanus x Acerifolia London planetree PA 1 16.0 N Y -122.21098 38.00291 201 Platanus x Acerifolia London planetree PA 1 12.3 N Y -122.21080 38.00287 202 Quercus agrifolia Coast live oak QA 2 6.5, 6.5 Y Y -122.21054 38.00284 203 Eucalyptus globulus Blue gum EG 2 9.4, 12.5 N Y -122.21049 38.00278 204 Pinus rabiata Monterey pine PR 1 28.0 N Y -122.21011 38.00282 205 Fraxinus latifolia Oregon ash FL 1 18.5 N Y -122.20988 38.00257 206 Quercus agrifolia Coast live oak QA 1 22.0 Y Y -122.20984 38.00248 207 Sambucus callicarpa Coast red elderberry SC 1 19.0 Y Y -122.20977 38.00245 208 Quercus agrifolia Coast live oak QA 1 34.0 Y Y -122.20970 38.00245 209 Fraxinus latifolia Oregon ash FL 1 14.4 N Y -122.20972 38.00252 210 Quercus agrifolia Coast live oak QA 1 23.0 Y Y -122.20965 38.00250 211 Fraxinus latifolia Oregon ash FL 1 10.0 N N -122.20962 38.00257 212 Fraxinus latifolia Oregon ash FL 1 16.6 N Y -122.20963 38.00262 213 Quercus agrifolia Coast live oak QA 3
8.0, 14.5,
10.0 Y Y -122.20963 38.00267
214 Pinus rabiata Monterey pine PR 1 42.0 N Y -122.20965 38.00277 ESR, Inc.
13 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
215 Quercus agrifolia Coast live oak QA 2 6.5, 9.5 Y Y -122.20963 38.00320 216 Quercus agrifolia Coast live oak QA 1 10.5 Y N -122.20961 38.00326 217 Quercus agrifolia Coast live oak QA 7
13.0, 12.0,
12.5, 7.5,
14.0, 12.0,
10.0 Y Y -122.20961 38.00331
218 Quercus agrifolia Coast live oak QA 2 14.0, 7.0 Y Y -122.20960 38.00338 219 Pinus rabiata Monterey pine PR 1 12.0 N Y -122.20961 38.00343 220 Eucalyptus globulus Blue gum EG 1 44.0 N Y -122.20960 38.00351 221 Eucalyptus globulus Blue gum EG 1 41.0 N Y -122.20960 38.00355 222 Pinus rabiata Monterey pine PR 1 11.6 N N -122.20959 38.00359 223 Eucalyptus sideroxylon Red iron bark ES 1 30.0 N Y -122.20963 38.00376 224 Eucalyptus globulus Blue gum EG 1 28.0 N Y -122.20966 38.00381 225 Eucalyptus globulus Blue gum EG 1 20.2 N Y -122.20966 38.00388 226 Eucalyptus globulus Blue gum EG 1 43.0 N Y -122.20967 38.00394 227 Pinus rabiata Monterey pine PR 1 29.0 N Y -122.20962 38.00424 228 Pinus rabiata Monterey pine PR 1 11.3 N N -122.20966 38.00429 229 Pinus rabiata Monterey pine PR 1 23.0 N Y -122.20967 38.00436 230 Sequoia sempervirens Coast redwood SS 1 27.0 Y Y -122.21005 38.00482 231 Sequoia sempervirens Coast redwood SS 1 16.6 Y Y -122.21001 38.00486 232 Eucalyptus globulus Blue gum EG 1 23.0 N Y -122.21020 38.00502 233 Pinus rabiata Monterey pine PR 1 22.0 N Y -122.21016 38.00513 234 Lithocarpus densiflora Tanoak LD 1 9.1 Y N -122.21025 38.00515 235 Eucalyptus globulus Blue gum EG 2 12.8, 18.5 N Y -122.21037 38.00520 236 Eucalyptus globulus Blue gum EG 1 28.0 N Y -122.21081 38.00576 ESR, Inc.
14 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
237 Eucalyptus globulus Blue gum EG 1 35.0 N Y -122.21095 38.00579 238 Eucalyptus globulus Blue gum EG 1 35.0 N Y -122.21083 38.00582 239 Eucalyptus globulus Blue gum EG 1 44.0 N Y -122.21087 38.00587 240 Eucalyptus globulus Blue gum EG 1 43.0 N Y -122.21096 38.00592 241 Pinus rabiata Monterey pine PR 1 12.7 N Y -122.21107 38.00608 242 Pinus rabiata Monterey pine PR 1 24.0 N Y -122.21136 38.00633 243 Fraxinus latifolia Oregon ash FL 1 11.9 N N -122.21152 38.00638 244 Fraxinus latifolia Oregon ash FL 1 24.0 N Y -122.21169 38.00651 245 Pinus rabiata Monterey pine PR 1 23.0 N Y -122.21178 38.00664 246 Pinus rabiata Monterey pine PR 1 30.0 N Y -122.21193 38.00666 247 Pinus rabiata Monterey pine PR 1 19.0 N Y -122.21203 38.00670 248 Quercus agrifolia Coast live oak QA 1 14.0 Y Y -122.21238 38.00673 249 Fraxinus latifolia Oregon ash FL 1 16.5 N Y -122.21230 38.00662 250 Fraxinus latifolia Oregon ash FL 1 14.1 N Y -122.21262 38.00658 251 Quercus agrifolia Coast live oak QA 1 23.0 Y Y -122.21265 38.00646 252 Eucalyptus sideroxylon Red iron bark ES 2 9.6, 11.8 N Y -122.21259 38.00639 253 Eucalyptus sideroxylon Red iron bark ES 2 16.0, 12.5 N Y -122.21261 38.00618 254 Quercus agrifolia Coast live oak QA 1 16.5 Y Y -122.21257 38.00617 255 Quercus agrifolia Coast live oak QA 2 12.5, 25.0 Y Y -122.21248 38.00606 256 Quercus agrifolia Coast live oak QA 1 28.0 Y Y -122.21215 38.00560 257 Quercus agrifolia Coast live oak QA 1 39.0 Y Y -122.21216 38.00552 258 Pinus rabiata Monterey pine PR 1 28.0 N Y -122.21214 38.00541 259 Pinus rabiata Monterey pine PR 1 35.0 N Y -122.21209 38.00526 260 Eucalyptus sideroxylon Red iron bark ES 1 26.0 N Y -122.21217 38.00518 261 Eucalyptus sideroxylon Red iron bark ES 1 16.0 N Y -122.21209 38.00519 ESR, Inc.
15 ID# Scientific Name Co mmon Name Code Trunks Diameter (inches)
Contra
County
Qualifying
Tree
City of
Hercules
Qualifying
Tree
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
262 Quercus agrifolia Coast live oak QA 1 6.8 Y N -122.21210 38.00512 263 Eucalyptus globulus Blue gum EG 1 48.0 N Y -122.21199 38.00502 264 Eucalyptus sideroxylon Red iron bark ES 1 29.0 N Y -122.21190 38.00497 265 Eucalyptus sideroxylon Red iron bark ES 1 34.0 N Y -122.21118 38.00366 266 Fraxinus latifolia Oregon ash FL 1 26.0 N Y -122.21072 38.00338 267 Quercus kelloggii Black oak QK 1 17.7 Y Y -122.21040 38.00329 268 Pinus rabiata Monterey pine PR 2 26.5, 23.0 N Y -122.21011 38.00361 269 Fraxinus latifolia Oregon ash FL 1 10.3 N N -122.21108 38.00499 270 Eucalyptus globulus Blue gum EG 1 64.0 N Y -122.21117 38.00512 271 Eucalyptus globulus Blue gum EG 1 38.0 N Y -122.21134 38.00559 272 Eucalyptus globulus Blue gum EG 1 67.0 N Y -122.21150 38.00567 273 Eucalyptus globulus Blue gum EG 1 56.0 N Y -122.21158 38.00574 274 Eucalyptus globulus Blue gum EG 1 60.0 N Y -122.21169 38.00586 275 Eucalyptus globulus Blue gum EG 1 26.0 N Y -122.21175 38.00595 276 Eucalyptus globulus Blue gum EG 1 23.0 N Y -122.21181 38.00602 277 Eucalyptus globulus Blue gum EG 1 53.0 N Y -122.21189 38.00608 278 Eucalyptus globulus Blue gum EG 1 25.0 N Y -122.21163 38.00609 279 Quercus lobata Valley oak QL 1 78.0 Y Y -122.21163 38.00611
ESR, Inc.
16 nm
nm
nmnm
nm
nm
nmnm
nm
nmnmnmnm
nm
nm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nmnmnmnm
nm
nmnmnmnm
nm
nm
nm
nmnmnm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nmnm
nm
nmnm
nm
nm
nmnm
nmnm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnmnmnm
nmnm
nm nm
nm nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nmnmnm
nm
nmnm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nmnm nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnm
nm
nmnm nm
nm
nm
nm
nm
nm
nm
nmnmnmnm
nmnm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
9 8
7 6
5 4
3 2
1 99
98 97
96 95
94 9392
91 9089
88 87
86 85
8483
82 81 80
79 78
77 76
75 74
73 71
70 6968
67 66
65 6463
62 61
605958
5756
5554
53 52
51 50
4948
4746
4443
39 38
3736
3534 33
3231
30 29
28 27
26 25
24 23
22 21
19 18
16 15
1413 12 11
10 278277
276275
274
273
272
271
270
269
268
267
266
265
264263
262 261259
258
257
255
254
253
252251
249
248 247
246244
243
242
241
240
239
238
237
236
235
234
233232
231230
229
228227
226
225224
223
222221
220219
218
217216
215
214
213212
211
210209
206
205
204203202201200
199
198197196
195
194
193192191
190
189
188
187
186185
184
183182
181
179
178177176
175 174
173
172
171
170
168
167 166
165164
163
162161
159
158
157
156
155
154
153
152
151
150149
148
147
146
145144
142
141140138
137
136
135134133131
130
129
126
125
124
123
122
121
120
119
118
117
116
115114113
112111
110 109
108 107
106
105
104
103
±
0 250 500 750 1,000
Feet
Figure 1 – Franklin Canyon GC Surveyed Tree Overview (Location and ID#) ESR, Inc.
17 nm
nm
nmnm
nm
nm
nmnm
nm
nm
nmnm
nm
nm
nm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnm
nm
nm
nm
nm
nmnm
nm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnm
nm
nm
nmnm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nmnm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnm
nm
9 8 76
5 43
1 99
98 97
96 95
9493
92 9190
89 88
87 86
85 8483
82 81
80 79
78 77
76 75
74 73
72 71
70 69
68 67
66 65
64 63
62 61
605958
57 56
555453
52 50
4948
4746
4443
42 40
38 3736
3534
33 32
31 30
29 28
27 26
25 24
23 22 21
19 18
17 15
1413 12 11
10 255
254253
252
251
250
248
198197
196195
194
193192
191
190
189
188
187186
185184
183182
180179
178
177176
175 174
173
172
171
170
169
168
166
165164
163
162161
159
158
151
150149
148
147
146
145
144
143
142
141140
139
138
137
136
135
134133
132
131
130
129
127
125
124
123
122
121
120
119
118
117
116
115
114113
112111
110 109
108 107
106
105
104
103
102
±
0 125 250 375 500
Feet
Figure 2 - Western Portion of Survey Area
ESR, Inc.
18 nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nmnm
nm
nmnm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm
nmnm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nmnm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm
nmnm
nm
nm
nm
nm
nm
nm nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm
nm nm
1 99
98 97
96 95
9493
92 9190
89 80
79 78
77 76
72 71
70 69
68 67
66 65
64 63
62 61
605958
57 56
278277
276
275
274
273
272
271
270
269
268
267
266
265
264263
262
261
260
259
258
257
256
255
254253
252
251
250 249
248 247
246
245
244
243
242
241
240
239
238237
236
235
234
233232
231230
229
228
227
226
225
224223
222221
220219
218217
216215
214
213
212211
210
209207
206
205
204203202201200
199
198197
196195
194
193192
191
190
189
188
187186
185184
183182
180179
178
177176
175 174
173
172
171
170
169
168
166
165164
163
162161
159
158
157
156
155
154
153
152
151
150149
148
147
146
145
144
143
142
141140
139
138
137
136
135
134133
132
131
130
129
127
125
124
123
122
121
120
119
118
117
116
115
114
112
109
108 107
106
105
104
103
102
±
0 125 250 375 500
Feet
Figure 3 - Eastern Portion of Survey Area
ESR, Inc.
19 ESR suggests that if any qualifying trees would be removed or more than 30% of the crown foliage was to be removed then the following replacement ratio could be utilized:
• 1:1 replacement ratio for qualifying native trees (County qualifying tree list as referenced above) greater than or equal to 6.5 inches dbh but less than 12 inches dbh from the.
• 2:1 replacement ratio for trees greater than 12 inches but less than 24 inches dbh. Replacement tree species selection should be based on whether the tree is one of the 26 native trees listed by the County or a non-native tree based on the City requirements. A like for like replacement is anticipated except for the Eucalyptus species.
• 3:1 replacement ratio for trees greater than 24 inches dbh. Replacement species selection would be a like for like replacement except for Eucalyptus species.
Generally replacement is required either by planting acorns or similar nuts/seeds of the removed tree at the project site or planting containerized saplings of the removed trees.
Typically when the tree replacement ratio is implemented a time period of maintenance and monitoring of the trees coupled with a survival percentage is utilized to evaluate success of the program.
ESR recommends the following monitoring program:
• For the first three years the trees should be evaluated on a semi-annual basis for viability.
• Health and vigor of the trees should be based on root, bark, and bud/leaf development. The height of tree should be used to evaluate the success of the planting.
• A success (i.e. live tree) percentage of 70% after three years would indicate a successful planting regime.
• Trees that are identified during semi-annual survey that are stressed, dying, or dead should be replaced unless natural recovery by the tree is deemed to be on- going.
ESR, Inc.
20 ESR is hopeful that this report meets your needs at this time. If there are any question or comment or further clarification needed please do not hesitate to contact us using the letterhead information. Thank you for the opportunity to assist with this project.
Sincerely,
ESR, Inc.
William Stolp
Vice President/Senior Biologist
ESR, Inc.
21 Appendix A - Contra Costa County Tree Ordinance
ESR, Inc.
22 ESR, Inc.
23 ESR, Inc.
24 ESR, Inc.
25 Appendix B - City of Hercules Mature Tree Ordinance
ESR, Inc.
26 ESR, Inc.
27 ESR, Inc.
28 ESR, Inc.
29