Memorandum for Tree Survey at the Marywood Residential Development Site in Orange, CA.

Transcription

1 Memorandum Date: January 22, 2015 To: From: Subject: The New Home Company Brianna Bernard, VCS Environmental Memorandum for Tree Survey at the Marywood Residential Development Site in Orange, CA. 1. Introduction VCS Environmental (VCS) is pleased to submit the following memorandum documenting the trees not included in the arborist report that would be impacted during construction of 40 single-family, detached residential homes on an approximately 16-acre Marywood Project site (Project). In support of Project efforts, VCS biologists conducted a tree inventory survey on January 15, 2015 within the Project site and grading area (Survey Area). 2. Project Location The Project site is located at 2811 East Villareal Drive in the City of Orange, County of Orange, California. The Project site is the current location of the Marywood Pastoral Center (Figure 1). The area surrounding the Project site includes a residential community to the north; a City water tank on a slope vegetated with ornamental species, Childtime preschool, and a residential community to the east; residential homes and two City water tanks on a slope vegetated with ornamental species to the west; and Villareal Drive and additional residential homes to the south. 3. Project Description The Project proposes to construct 40 residential homes on an approximately 16-acre Project site, including remediation of unengineered soil on the Project site and adjoining slopes. Figure 2 is a recent aerial of the Project site with the existing Marywood Pastoral Center, approximate Project grading limits, and Survey Area. Figure 3 is the proposed grading plan. In order to support the development of the Project, a large portion of the Study Area would need to be remediated due to settlement. The existing slope along the southern property boundary that extends down to the City s two existing water tanks is a product of the original grading operation. Based on recent studies and as evidenced by the damage to the existing structures on the Project site, the prior fill material was not properly placed in that canyon and the Project site and slope above the City s water tanks continues to settle. In its current state, that fill material, which will be referred to as unsuitable fill material, is not suitable for any type of new development and creates potential slope stability issues adjacent to the City s two water tanks. Therefore, the existing unsuitable fill would be removed, the area would be over-excavated and reconstructed with structural fill compacted to meet the required geotechnical specifications.

2 January 22, 2015 Page 2 of 2 4. Field Survey Methods A Tree Evaluation Report was prepared by Arborgate Consulting, Inc. on October 9, 2015, that evaluated existing trees on the Marywood property. However, the arborist report did not evaluate the trees on the slopes surrounding the Marywood property within the Project site and proposed grading limits. Therefore, VCS biologists walked the manufactured slopes located within the Study Area. The Study Area was surveyed on foot by walking methodically across the property. Any inaccessible or restricted areas were surveyed using binoculars. The trees were evaluated for health and structural condition of the trunk and canopy. The trunk diameter was measured using diameter tape and multi trunk trees were measured at the base for simplicity. Trunk diameter was otherwise measured at a point 24 inches above ground level. 5. Results Table 1 lists the species of trees identified during the field survey. Please refer to Appendix A: Matrix of Finding for species of trees and their corresponding trunk diameter (DBH). The City of Orange currently implements a tree ordinance as Ordinance Ordinance , defines tree as any live plant which has a single trunk measuring 10.5 inches in circumference, measured at a point 24 inches above the ground level. Approximately 228 trees were surveyed and inventoried within the Study Area along the manufactured slopes. Of the total 228 trees surveyed along the manufactured slopes, no native tree species were observed. Common name Brazil pepper camphor Chinese elm eucalyptus mulberry pine Peruvian peppertree Table 1. Trees Observed On-site Species Schinus terbinthifolius Cinnamomum camphora Ulmus parvifolia Eucalyptus sp. Morus alba Pinus sp. Schinus molle Of the 228 trees inventoried, approximately 76 met the definition of mature trees according to Ordinance No trees within the Study Area met the definition of Historical Trees as outlined in Ordinance All the trees would be removed as part of the Development due to the unengineered soil. Many of the trees on the slopes appear to have started as chance seedlings. Of the trees being removed, many of the species are in poor health due to lack of water, poor pruning, crowding, poor soil conditions, and pests or disease. Attachments: Figure 1: Project Location Figure 2: Project Site Figure 3: Proposed Site Grading Plan Attachment A: Matrix of Findings Attachment B: Photopages

3 Figures

4 Approximate Project Location ^_ Prepared By: VCS Environmental Map Created: 01/16/2015 I Feet 0 5,000 10,000 20,000 1 inch = 20,000 feet Data Source: Bing Maps Marywood Regional Location Map FIGURE 1

5 Legend Approximate Site Boundary Approximate Grading Limits Approximate Survey Area Prepared By: VCS Environmental Map Created: 1/16/2015 I Feet inch = 150 feet Data Source: Bing Maps Marywood Residential Development Project Site FIGURE 2

6 EXISTING LAND USE (GENERAL PLAN): LOW DENSITY RESIDENTIAL (LDR) PROPOSED LAND USE: SINGLE-FAMILY RESIDENTIAL EXISTING ZONING: SINGLE FAMILY RESIDENTIAL (R1-6) PROPOSED ZONING: SINGLE FAMILY RESIDENTIAL (R1-6) PROPOSED DEVELOPMENT IS LOCATED WITHIN THE ORANGE UNIFIED SCHOOL DISTRICT ALL PROPOSED UTILITIES ARE TO BE UNDERGROUND UTILITIES SUMMARY: DOMESTIC WATER SERVICE - CITY OF ORANGE SANITARY SEWER SERVICE - CITY OF ORANGE NATURAL GAS SERVICE - SOUTHERN CALIFORNIA GAS COMPANY ELECTRICAL SERVICE - SOUTHERN CALIFORNIA EDISON COMPANY TELEPHONE SERVICE - AT&T CABLE - INTERNET SERVICE - TIME WARNER CABLE WASTE REMOVAL SERVICE - CR&R INCORPORATED FIRE - ORANGE CITY FIRE DEPARTMENT POLICE - ORANGE POLICE DEPARTMENT 7. TOTAL GROSS AREA: ACRES 9. GRADED SLOPES SHALL BE 2:1 UNLESS OTHERWISE SHOWN. 10. ALL EXISTING EASEMENTS ARE TO REMAIN IN THEIR CURRENT DESIGNATED LOCATIONS UNLESS OTHERWISE NOTED. 11. ASSESSOR PARCEL NUMBER: THOMAS GUIDE, ORANGE COUNTY (2006ED): PAGE 770, A5. EXISTING EASEMENTS: TEMPORARY CONSTRUCTION EASEMENT PARCEL A (O.R ) - CITY OF ORANGE EASEMENT FOR WATER PURPOSES??? SEWER EASEMENT??? 1. REDUCTION IN STANDARD CURB FROM 6" TO 4" ROLLED CURB (CITY STD. 117). 2. STREET SECTION - REDUCTION IN STANDARD STREET SECTION (CITY STD. 106) FROM 52' TO 50' PARKING BOTH SIDES. CUT: 373,880 CYS FILL: 367,630 CYS TOTAL 8,979 8,784 15,682 11,799 7,656 6,924 10,780 11,326 6,518 6,597 12,662 13,149 6,545 7,469 12,791 7,224 10,826 12,532 7,130 6,579 15,952 58,489 7,942 11,607 17,500 16,043 8,388 11,957 11,287 10,140 7,790 6,643 10,638 9,956 7,308 6,807 9,582 10,294 6,633 6,643 9,516 6,553 10,067 10,382 6,757 7,212 7,738 8,826 6,174 7,759 12,107 8,774 7,517 7,002 6,869 6,823 6,262 6,418 6,510 10,301 6,129 10,263 19,758 11,151 8,818 7,906 10,416 7,421 10,925 12,040 8,328 8,841 14, ,889 9, ,760 I HEREBY STATE THAT THIS MAP WAS PREPARED UNDER MY SUPERVISION AND THAT THE OWNER OF RECORD HAS KNOWLEDGE OF AND CONSENTS TO THE FILING OF THIS MAP. DATE: DOUGLAS L. STALEY R/W TC PER PLAN R/W 50' 6" 1/2"R 36' 7' RESIDENTIAL 2' 5' 1' 7' 18' 1' 8' 5' 18' 10' 10' 8' PARKING 1' RESIDENTIAL 2' 1' "A", "B", & "C" STREETS R/W R/W 50' 36' 7' 1.5' 18' 7' 18' 6" 6" 5' SIDEWALK 6" CURB 12"R 1/2"R A PORTION OF E. VILLAREAL DRIVE (EXISTING) NTS 6" CURB 1" TNHC Land Company, LLC 85 Enterprise, Suite 450, Aliso Viejo, CA Phone: Fax: " FLARED CURB NTS 5' 3/8" LIP 9"R 5' SIDEWALK RELIGIOUS FACILITY 1'-0" PARKING 5' SIDEWALK 4" FLARED CURB 6" 7" ,854 35,027 6" 2 3 4" 1 Gross Lot Area Net Lot Area (Flat (S.F.) Pad) (S.F.) 11,447 10,299 8,488 7,592 CURB FACE Lot Number IN THE CITY OF ORANGE, COUNTY OF ORANGE, STATE OF CALIFORNIA, BEING A PORTION OF PARCEL 2 OF LOT LINE ADJUSTMENT LL78-4 RECORDED SEPTEMBER 21, 1978 AS INSTRUMENT NO IN BOOK 12851, PAGE 1570 OF OFFICIAL RECORDS, IN THE OFFICE OF THE COUNTY RECORDER OF SAID COUNTY. RESIDENTIAL

7 Attachment A: Matrix of Findings

8 Appendix A: Matrix of Findings Common Name Scientific Number DBH Outside of Grading Limit 1 Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > camphor Cinnamomum camphora < camphor Cinnamomum camphora > Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Chinese Elm Ulmus parvifolia < pine Pine sp. < Chinese Elm Ulmus parvifolia <10.5 X 13 Chinese Elm Ulmus parvifolia <10.5 X 14 Chinese Elm Ulmus parvifolia <10.5 X 15 Chinese Elm Ulmus parvifolia <10.5 X 16 Chinese Elm Ulmus parvifolia <10.5 X 17 Chinese Elm Ulmus parvifolia <10.5 X 18 Peruvian peppertree Schinus molle <10.5 X 19 pine Pine sp. >10.5 X 20 Chinese Elm Ulmus parvifolia <10.5 X 21 Chinese Elm Ulmus parvifolia <10.5 X 22 Chinese Elm Ulmus parvifolia >10.5 X 23 Peruvian peppertree Schinus molle >10.5 X 24 Peruvian peppertree Schinus molle <10.5 X 25 Chinese Elm Ulmus parvifolia >10.5 X 26 Chinese Elm Ulmus parvifolia <10.5 X 27 Chinese Elm Ulmus parvifolia >10.5 X 28 Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < pine Pine sp. > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle > camphor Cinnamomum camphora < camphor Cinnamomum camphora < pine Pine sp. > Peruvian peppertree Schinus molle >10.5 X 43 Peruvian peppertree Schinus molle <10.5 X 44 Peruvian peppertree Schinus molle <10.5 X 45 Peruvian peppertree Schinus molle <10.5 X Page 1 of 6

9 Appendix A: Matrix of Findings Common Name Scientific Number DBH Outside of Grading Limit 46 Peruvian peppertree Schinus molle <10.5 X 47 Peruvian peppertree Schinus molle <10.5 X 48 pine Pine sp. <10.5 X 49 Peruvian peppertree Schinus molle >10.5 X 50 Peruvian peppertree Schinus molle >10.5 X 51 Peruvian peppertree Schinus molle >10.5 X 52 Peruvian peppertree Schinus molle <10.5 X 53 camphor Cinnamomum camphora <10.5 X 54 camphor Cinnamomum camphora <10.5 X 55 Peruvian peppertree Schinus molle >10.5 X 56 Brazil peppertree Schinus terbinthifolius >10.5 X 57 Brazil peppertree Schinus terbinthifolius >10.5 X 58 Peruvian peppertree Schinus molle >10.5 X 59 Peruvian peppertree Schinus molle >10.5 X 60 Peruvian peppertree Schinus molle >10.5 X 61 Peruvian peppertree Schinus molle >10.5 X 62 Peruvian peppertree Schinus molle >10.5 X 63 Peruvian peppertree Schinus molle >10.5 X 64 Peruvian peppertree Schinus molle >10.5 X 65 Peruvian peppertree Schinus molle >10.5 X 66 Peruvian peppertree Schinus molle >10.5 X 67 Peruvian peppertree Schinus molle >10.5 X 68 Peruvian peppertree Schinus molle >10.5 X 69 Peruvian peppertree Schinus molle >10.5 X 70 Peruvian peppertree Schinus molle >10.5 X 71 camphor Cinnamomum camphora <10.5 X 72 Peruvian peppertree Schinus molle >10.5 X 73 Peruvian peppertree Schinus molle >10.5 X 74 Peruvian peppertree Schinus molle <10.5 X 75 Peruvian peppertree Schinus molle <10.5 X 76 Peruvian peppertree Schinus molle <10.5 X 77 Peruvian peppertree Schinus molle <10.5 X 78 Peruvian peppertree Schinus molle >10.5 X 79 Peruvian peppertree Schinus molle >10.5 X 80 Peruvian peppertree Schinus molle <10.5 X 81 Peruvian peppertree Schinus molle >10.5 X 82 Peruvian peppertree Schinus molle <10.5 X 83 Peruvian peppertree Schinus molle <10.5 X 84 Peruvian peppertree Schinus molle >10.5 X 85 Peruvian peppertree Schinus molle >10.5 X 86 Peruvian peppertree Schinus molle >10.5 X 87 Peruvian peppertree Schinus molle >10.5 X 88 camphor Cinnamomum camphora >10.5 X 89 camphor Cinnamomum camphora >10.5 X 90 camphor Cinnamomum camphora <10.5 Page 2 of 6

10 Appendix A: Matrix of Findings Common Name Scientific Number DBH Outside of Grading Limit 91 camphor Cinnamomum camphora < pine Pine sp. < Peruvian peppertree Schinus molle < camphor Cinnamomum camphora < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Eucalyptus Eucalyptus sp > Eucalyptus Eucalyptus sp < Eucalyptus Eucalyptus sp < pine Pine sp. < camphor Cinnamomum camphora < Peruvian peppertree Schinus molle > camphor Cinnamomum camphora > Eucalyptus Eucalyptus sp > Peruvian peppertree Schinus molle > camphor Cinnamomum camphora < camphor Cinnamomum camphora > Peruvian peppertree Schinus molle > camphor Cinnamomum camphora < camphor Cinnamomum camphora < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < pine Pine sp. >10.5 X 122 Peruvian peppertree Schinus molle <10.5 X 123 Peruvian peppertree Schinus molle <10.5 X 124 Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < camphor Cinnamomum camphora < camphor Cinnamomum camphora < camphor Cinnamomum camphora < camphor Cinnamomum camphora < camphor Cinnamomum camphora <10.5 Page 3 of 6

11 Appendix A: Matrix of Findings Common Name Scientific Number DBH Outside of Grading Limit 136 camphor Cinnamomum camphora < camphor Cinnamomum camphora > camphor Cinnamomum camphora > pine Pine sp. < pine Pine sp. < camphor Cinnamomum camphora < pine Pine sp. > pine Pine sp. > Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle <10.5 X 146 Peruvian peppertree Schinus molle <10.5 X 147 Peruvian peppertree Schinus molle <10.5 X 148 Peruvian peppertree Schinus molle <10.5 X 149 Peruvian peppertree Schinus molle <10.5 X 150 Peruvian peppertree Schinus molle <10.5 X 151 Peruvian peppertree Schinus molle <10.5 X 152 Mulberry Morus alba >10.5 X 153 Peruvian peppertree Schinus molle <10.5 X 154 Peruvian peppertree Schinus molle <10.5 X 155 Peruvian peppertree Schinus molle <10.5 X 156 Peruvian peppertree Schinus molle <10.5 X 157 Peruvian peppertree Schinus molle <10.5 X 158 Peruvian peppertree Schinus molle <10.5 X 159 Chinese Elm Ulmus parvifolia >10.5 X 160 Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Brazil peppertree Schinus terbinthifolius < Brazil peppertree Schinus terbinthifolius < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Brazil peppertree Schinus terbinthifolius > pine Pine sp. > pine Pine sp. < Brazil peppertree Schinus terbinthifolius < Brazil peppertree Schinus terbinthifolius > Peruvian peppertree Schinus molle <10.5 X 173 Brazil peppertree Schinus terbinthifolius <10.5 X 174 Peruvian peppertree Schinus molle <10.5 X 175 Peruvian peppertree Schinus molle <10.5 X 176 Peruvian peppertree Schinus molle >10.5 X 177 Peruvian peppertree Schinus molle >10.5 X 178 Peruvian peppertree Schinus molle >10.5 X 179 Brazil peppertree Schinus terbinthifolius >10.5 X 180 Peruvian peppertree Schinus molle <10.5 X Page 4 of 6

12 Appendix A: Matrix of Findings Common Name Scientific Number DBH Outside of Grading Limit 181 Peruvian peppertree Schinus molle <10.5 X 182 Peruvian peppertree Schinus molle >10.5 X 183 Peruvian peppertree Schinus molle >10.5 X 184 Peruvian peppertree Schinus molle >10.5 X 185 Peruvian peppertree Schinus molle <10.5 X 186 pine Pine sp. >10.5 X 187 chinese elm Ulmus parvifolia <10.5 X 188 chinese elm Ulmus parvifolia >10.5 X 189 pine Pine sp. > pine Pine sp. < pine Pine sp. > pine Pine sp. > pine Pine sp. < pine Pine sp. < pine Pine sp. < Brazil peppertree Schinus terbinthifolius < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle > Chinese elm Ulmus parvifolia > Chinese elm Ulmus parvifolia > pine Pine sp. < Peruvian peppertree Schinus molle < Peruvian peppertree Schinus molle < pine Pine sp. > Peruvian peppertree Schinus molle < Brazil peppertree Schinus terbinthifolius < Peruvian peppertree Schinus molle > pine Pine sp. > Peruvian peppertree Schinus molle < camphor Cinnamomum camphora < camphor Cinnamomum camphora < camphor Cinnamomum camphora < Peruvian peppertree Schinus molle <10.5 X 214 Brazil peppertree Schinus terbinthifolius <10.5 X 215 Peruvian peppertree Schinus molle <10.5 X 216 Peruvian peppertree Schinus molle <10.5 X 217 Peruvian peppertree Schinus molle >10.5 X 218 Peruvian peppertree Schinus molle >10.5 X 219 Peruvian peppertree Schinus molle >10.5 X 220 Brazil peppertree Schinus terbinthifolius <10.5 X 221 Brazil peppertree Schinus terbinthifolius <10.5 X 222 Peruvian peppertree Schinus molle <10.5 X 223 Peruvian peppertree Schinus molle <10.5 X 224 pine Pine sp. <10.5 X 225 pine Pine sp. >10.5 X Page 5 of 6

13 Appendix A: Matrix of Findings Common Name Scientific Number DBH Outside of Grading Limit 226 pine Pine sp. >10.5 X 227 Chinese Elm Ulmus parvifolia <10.5 X 228 Chinese Elm Ulmus parvifolia >10.5 X Page 6 of 6

14 Attachment B: Photopages

15 Tree Inventory Survey Conducted on January 15, 2015 Peruvian peppertree found on slope adjacent to the existing tennis courts. Peruvian peppertree found on slope. Marywood Residential Development Page 1

16 Tree Inventory Survey Conducted on January 15, 2015 Dead Chinese elm found on slope adjacent to the water tanks. Pines found on adjacent to road leading to existing tennis courts. Marywood Residential Development Page 2

17 Tree Inventory Survey Conducted on January 15, 2015 Young Peruvian peppertree located on the slope adjacent to the water tanks. Many of the trees found on the manufactured slopes are in poor health due to lack of water, poor pruning, crowding, poor soil conditions, and pests or disease. Marywood Residential Development Page 3