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HomeMy WebLinkAbout1740 ORIOLE CT; ; CBR2021-0687; PermitPERMIT REPORT Residential Permit Print Date: 06/01/2022 Job Address: 1740 ORIOLE CT, CARLSBAD, CA 92011-4052 Permit Type: BLDG-Residential Work Class: Parcel#: 2159211700 Track#: Valuation: $109,479.60 Lot#: Occupancy Group: #of Dwelling Units: 1 Bedrooms: Bathrooms: Project Title: WASHINGTON ADU Description: 744 SF NEW DETACHED ADU Applicant: Project#: Plan#: Construction Type: Orig. Plan Check#: Plan Check#: Property Owner: Second Dwelling Unit DEV2021-0073 AW DEVELOPMENT & DESIGN LLC ALVIN WASHINGTON AW DEVELOPMENT & DESIGN LLC ALVIN WASHINGTON PO BOX 1212 PO BOX 1212 CARLSBAD, CA 92018 CARLSBAD, CA 92018 (760) 809-8732 (760) 809-8732 FEE GREEN BUILDING STANDARDS PLAN CHECK & INSPECTION SWPPP PLAN REVIEW FEE TIER 1-MEDIUM SWPPP INSPECTION FEE TIER 1-Medium BLDG BUILDING PLAN CHECK FEE (BLDG) SB1473 GREEN BUILDING STATE STANDARDS FEE BUILDING PERMIT FEE ($2000+) PLUMBING BLDG RESIDENTIAL NEW/ADDITION/REMODEL MECHANICAL BLDG RESIDENTIAL NEW/ADDITION/REMODEL STRONG MOTION-RESIDENTIAL ELECTRICAL BLDG RESIDENTIAL NEW/ADDITION/REMODEL Total Fees: $1,949.84 Total Payments To Date: $1,949.84 ( City of Carlsbad Permit No: CBR2021-0687 Status: Closed -Finaled Applied: 03/12/2021 Issued: 04/21/2021 Finaled Close Out: 04/29/2022 Inspector: Final Inspection: Balance Due: TAlva 04/29/2022 AMOUNT $175.00 $55.00 $246.00 $453.11 $5.00 $661.50 $182.00 $92.00 $14.23 $66.00 $0.00 Please take NOTICE that approval of your project includes the "Imposition" of fees, dedications, reservations, or other exactions hereafter collectively referred to as "fees/exaction." You have 90 days from the date this permit was issued to protest imposition of these fees/exactions. If you protest them, you must follow the protest procedures set forth in Government Code Section 66020(a), and file the protest and any other required information with the City Manager for processing in accordance with Carlsbad Municipal Code Section 3.32.030. Failure to timely follow that procedure will bar any subsequent legal action to attack, review, set aside, void, or annul their imposition. You are hereby FURTHER NOTIFIED that your right to protest the specified fees/exactions DOES NOT APPLY to water and sewer connection fees and capacity changes, nor planning, zoning, grading or other similar application processing or service fees in connection with this project. NOR DOES IT APPLY to any fees/exactions of which you have previously been given a NOTICE similar to this, or as to which the statute of limitation has previously otherwise expired. 1635 Faraday Avenue I Carlsbad, CA 92008-7314 I 442-339-2719 I 760-602-8560 f I www.carlsbadca.gov ( City of Carlsbad RESIDENTIAL BUILDING PERMIT APPLICATION B-1 Plan Check CffiZ.02..\ -Oo?) 1-- Est. Value \05,4\ 09 PC Deposit Date 3 12-2.J Job Address 1738 Oriole Ct Sulte: ____ APN: 215-921-17-00 CT/Project 11: __________________ ,Lot #:, ____ Year Built: _________ _ Fire Sprinklers: 0YES0 NO Air Conditloning:0 YES Q NO BRIEF DESCRIPTION OF WORI(: Electrical Panel Upgrade: QYEs0 NO ~ Addition/New: 744 Living SF, 744 Deck SF, ____ ,Patio SF,, ____ Garage SF __ _ Is this to create an Accessory Dwelling Unit? 0 Y ON New Fireplace? 0 Y 0 N, If yes how many? __ D Remodel :. _____ SF of affected area Is the area a conversion or change of use ? Qy ON 0 Pool/Spa:. ____ SF Additional Gas or Electrical Features? ___________ _ osolar: ___ KW,, ___ Modules, Mounted:0Roof 0Ground, TIit: 0 YON, RMA: Ov ON, Battery:OY ON, Panel Upgrade: Ov ON D Re roof: ___________________________________ _ D Plumbing/Mechanlcal/Electrical 0 Only: Other: This permit is to be Issued In the name of the Property Owner as Owner-Builder, licensed contractor or Authorized Agent of the owner or contractor. The person listed as the Applicant below will be the main point of contact throughout the permit process. PROPERTY OWNER APPLICANT Ii] PROPERTY OWNERS AUTHORIZED AGENT APPLICANT Ii] Name: Alvin Washington Address: 1738 Oriole Ct Name: SAME Address: __________________ _ City:Carlsbad State:CA Zlp:92011 City:. __________ State: ___ Zip:, ____ _ Phone: 760 809-8732 Phone: __________________ _ Emau,runtafinancial@msn.com Email: ___________________ _ DESIGN PROFESSIONAL APPLICANT O CONTRACTOR OF RECORD APPLICANT 0 Name:SAME Name.: __________________ _ Address.: ________________ _ Address:. _________________ _ Clty:, _______ State:. ___ Zip:. ___ _ City· .. ________ State:, ___ Zip:, ______ _ Phone:. ________________ _ Phone:. __________________ _ Email: runtafinancial@msn.com Email: __________________ _ Architect State license: __________ _ State llcense/class:. ______ Bus. License: ___ _ 1635 Faraday Ave Carlsbad, CA 92008 Ph: 760-602-2719 Fax: 760-602-8S58 Email: Bullding@carlsbadca,gov IDENTIFY WHO WILL PERFORM THE WORK BY COMPLETING (OPTION A) OR (OPTION B) BELOW: (OPTION A): LICENSED CONTRACTOR DECLARATION: I hereby affirm under penaJty of perjury that I am licensed under provisions of Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code, and my license is in full force and effect. I also affirm under penalty of perjury one of the following declarations: 01 have and wlll maintain a certificate of consent to self•lnsure for workers' compensation provided by 5ectlon 3700 of the labor Code, for the pe,formance of the work which this permit is issued. Polley No. ___________________________________ _ 01 have and wlll maintain worker's compensation, as required by Section 3700 of the Labor Code, for the performance of the work for which tliis permit Is issued. My workers' compensation insurance carrier and policy number are: Insurance Company Name: ____________________ _ Policy No. ____________________________ Expiration Date: _______________ _ D Certificate of Exemption: I certify that in the performance of the work for which this permit is issued, I shall not employ any person In any manner so as to become subject to the workers' compensation Laws of California. WARNING: Failure to secure workers compensation coverage Is unlawful and shall subject an employer to criminal penalties and civil fines up to $100,000.00, In addition the to the cost of compensation, damages as provided for In Section 3706 of the Labor Code, Interest and attorney's fees. CONSTRUCTION LENDING AGENCY, IF ANY: I hereby affirm that there is a construction lendlng agency for the performance of the work this permit Is issued (Sec. 3097 (i) Civil Code). Lender's Name:. _____________________ .Lender's Address: ___________________ _ CONTRACTOR PRINT: _________ SIGN: _________ DATE: (OPTION B): OWNER-BUILDER DECLARATION: I hereby affirm that I om exempt from Contractor's license Law for the following reason: Or, as owner of the property or my employees with wages as their sole compematlon, will do the work and the structure Is not Intended or offered for sale {Sec. 7044, Business and Proresslons code: The Contractor's License Law does not apply to an owner of property who builds or improves thereon, and who does such work himself or through his own employees, provided that such Improvements are not Intended or offered for sal~. If, however, the building or improvement ls sold within one year of completion, the owner•bu!lder will have the burden of proving that he did not build or Improve far the purpose of sale). !)11, as owner of the property, am exclusively contracting with licensed contractors to comtruct the project (Sec. 7044, Business and. Professlons Cod:: The Contractor's License Law does not apply to an owner of properly who bullds or Improves thereon, and contracts for such projects wrth contractor(s) licensed pursuant to the Contractor's license Law). 0 I am exempt under Business and Professions Code Division 3, Chapter 9, Article 3 for this reason: (i]"owner Builder acknowledgement and verification form" has been filled out, signed and attached to this appllcatlon. D Owners "Authorized Agent Form" has been filled out, signed and attached to th!s appllcat!on gilling the agent auchorlcy to obtain the permit on the owner's behalf. By my signature below I acknowledge that, except for my personal residence In which I must have resided for at least one year prior to completion of the improvements covered by this permit, I cannot legally sell a structure that I have built as an owner•builcier fl it has not been constructed 111 Its entirety by licen.seci contractors. I understand thot o copy of the opplicoble low, Section 7044 of the Business and Professions Code, is ovoi/oble upon request when thi$ opplicotion is submitted or at the/allowing Web site; http://www.leginfo.ca.gov/cafaw.html. OWNER PRINT: Alvin Washington SIGNQ_:::::.= "--~--...:._=_=_=:-:-~_-> __ DATE:·":;\\,\?,\ APPLICANT CERTIFICATION: SIGNATURE REQUIRED AT THE TIME OF SUBMITTAL By my signature below, I certify that: I am rhe property owner or State of California Licensed CDntractar or authorized to act on the property owner or contractor's behalf. I certify that I have read the application and state that the above Information Is correct and that the information on the planJ is accurate. I agree to comply with all City ordinances and State laws relating to building construction. I hereby authorize representative of the Qty of Carlsbad to enter upon the above mentioned property for lnspedian purposes. I ALSO AGREE TO SAVE, INDEMNIFY AND KEEP HARMLESS THE CITY OF CARLSBAD AGAINST ALL LIABILITIES, JUDGMENTS, COSTS AND EXPENSES WHICH MAY IN ANY WAY ACCRUE AGAINST SAID CITY IN CONSEQUENCE OF THE GRANTING OF THIS PERMIT, OSHA: An OSHA permit is required far excavations over 5'0' deep and demolition or construction of structures over 3 stories in height. SIG~_~=-=_=_=_=_===-----_-:::._::,,, ___ DATE: 4111,1-z. \ 1635 Faraday Ave Carlsbad, CA 92008 Pli: 760-602-2719 Fax: 760-602·8558 Email: Bulld1ns@carlsbadca.gov 2 REV. 08/20 (city of Carlsbad OWNER-BUILDER ACKNOWLEDGEMENT FORM B-61 Development Services Building Division 1635 Faraday Avenue 760-602-2719 www.carlsbadca.gov OWNER-BUILDER ACKNOWLEDGMENT FORM Pursuant to State of California Health and Safety Code Section 19825-19829 To: Property Owner An application for construction permit(s) has been submitted in your name listing you as the owner-builder of the property located at: Site Address 1738 Oriole Ct. Carlsbad, Ca The City of Carlsbad ("City") is providing you with this Owner-Builder Acknowledgment and Verification form to inform you of the responsibilities and the possible risks associated with typical construction activities issued in your name as the OwnerwBuilder. The City will not issue a construction permit until you have read and initialed your understanding of each provision in the Property Owner Acknowledgment section below and sign the form. An agent of the owner cannot execute this notice unless you, the property owner, complete the Owner's Authorized Agent form and it is accepted by the City of Carlsbad. INSTRUCTIONS: Please read and initial each statement below to acknowledge your understanding and verification of this information by signature at the bottom of the form. These are very important construction related acknowledgments designed to inform the property owner of his/her obligations related to the requested permit activities. I. AW I understand a frequent practice of unlicensed contractors is to have the property owner obtain an "Owner- Builder" building permit that erroneously implies that the property owner is providing his or her own labor and material personally. I, as an Owner--Builder, may be held liable and subject to serious financial risk for any injuries sustained by an unlicensed contractor and his or her employees while working on my property. My homeowner's insurance may not provide coverage for those injuries. I am willfully acting as an Owner--Builder and am aware of the limits of my insurance coverage for injuries to workers on my property. II. AW I understand building permits are not required to be signed by property owners unless they are responsible for the construction and are not hiring a licensed contractor to assume this responsibility. Ill. AW I understand as an "Owner---Builder" I am the responsible party of record on the permit. I understand that I may protect myself from potential financial risk by hiring a licensed contractor and having the permit filed in his or her name instead of my own. IV. AW I understand contractors are required by law to be licensed and bonded in California and to list their license numbers on permits and contracts. V. AW I understand if I employ or otherwise engage any persons, other than California licensed contractors, and the total value of my construction is at least five hundred dollars ($500), including labor and materials, I may be considered an "employer" under state and federal law. REV. 08/20 Owner-Builder Acknowledgement Continued VI. AW I understand if I am considered an "employer" under state and federal law, I must register with the state and federal government, withhold payroll taxes, provide workers' compensation disability insurance, and contribute to unemployment compensation for each "employee." I also understand my failure to abide by these laws may subject me to serious financial risk. VII. AW I understand under California Contractors' State License Law, an Owner-Builder who builds single-family residential structures cannot legally build them with the intent to offer them for sale, unless all work is performed by licensed subcontractors and the number of structures does not exceed four within any calendar year, or all of the work is performed under contract with a licensed general building contractor. VIII. AW I understand as an Owner---Builder if I sell the property for which this permit is issued, I may be held liable for any financial or personal injuries sustained by any subsequent owner(s) which result from any latent construction defects in the workmanship or materials. IX. AW I understand I may obtain more information regarding my obligations as an "employer" from the Internal Revenue Service, the United States Small Business Administration, the California Department of Benefit Payments, and the California Division of Industrial Accidents. I also understand I may contact the California Contractors' State License Board (CSLB) at 1-800-321-CSLB (2752) or www.cslb.ca.gov for more information about licensed contractors. X. AW I am aware of and consent to an Owner-Builder building permit applied for in my name, and understand that I am the party legally and financially responsible for proposed construction activity at the following address: XI. AW I agree that, as the party legally and financially responsible forth is proposed construction activity, I will abide by all applicable laws and requirements that govern Owner-Builders as well as employers. XII. AW I agree to notify the issuer of this form immediately of any additions, deletions, or changes to any of the information I have provided on this form. Licensed contractors are regulated by laws designed to protect the public. If you contract with someone who does not have a license, the Contractor's State License Board may be unable to assist you with any financial loss you may sustain as a result of a complaint. Your only remedy against unlicensed Contractors may be in civil court. It is also important for you to understand that if an unlicensed Contractor or employee of that individual or firm is injured while working on your property, you may be held liable for damages. If you obtain a permit as Owner- Builder and wish to hire contractors, you will be responsible for verifying whether or not those contractors are properly licensed and the status of their workers' compensation coverage. Before a building permit can be issued, this form must be completed, signed by the property owner and returned to the City of Carlsbad Building Division. I declare under penalty of perjury that I have read and understand all of the information provided on this form and that my responses, including my authority to sign this form, is true and correct. I am aware that I have the option to consult with legal counsel prior to signing this form, and I hove either (1) consulted with legal counsel prior to signing this farm or (2) have waived this right in signing this farm without the advice of legal counsel. Alvin Washington ~,,\'-\ Property Owner Name (PRINT) Property Owner Signature Date 2 REV. 08/20 (city of Carlsbad OWNERS AUTHORIZED AGENT FORM B-62 Development Services Building Division 1635 Faraday Avenue 760-602-2719 www.carlsbadca.gov OWNER'S AUTHORIZED AGENT FORM Only a property owner, contractor or their authorized agent may submit plans and applications for building permits. To authorize a third-party agent to sign for a building permit, the owner's third party agent must bring this signed form, which identifies the agent and the owner who s/he is representing, and for what jobs s/he may obtain permits. The form must be completed in its entirety to be accepted by the City for each separate permit application. Note: The fa/lawing Owner's Authorized Agent form is required to be completed by the property owner only when designating an agent ta apply for a construction permit on his/her behalf. AUTHORIZATION OF AGENT TO ACT ON PROPERTY OWNER'S BEHALF Excluding the Property Owner Acknowledgement, the execution of which I understand is my personal responsibility, I hereby authorize the following person(s) to act as my agent(s) to apply for, sign, and file the documents necessary to obtain an Owner-Builder Permit for my project. Detached ADU Scope of Construction Project (or Description of Work): ___________________ _ Project Location or Address: 1738 Oriole Ct. Carlsbad, Ca 92011 Name of Authorized Agent: Alvin Washington 760 809-8732 Tel No.--------- Address of Authorized Agent: 1738 Oriole Ct. Carlsbad, Ca 92011 I declare under penalty of perjury that I am the property owner for the address listed above and I personally filled out the above information and certify its accuracy. Property Owner's Signature: ___________________ Date: ______ _ 1 PERMIT INSPECTION HISTORY for (CBR2021-0687) Permit Type: BLDG-Residential Work Class: Second Dwelling Unit Status: Scheduled Date 01/1012022 Closed -Finaled Actual Inspection Type Start Date BLDG-44 Rough-Ducts-Dampers 01/10/2022 BLDG-Final Inspection Checklist Item Application Date: 03/12/2021 Issue Date: 04/21/2021 Owner: AW DEVELOPMENT & DESIGN LLC Subdivision: CARLSBAD TCT#97-15 LOHF PROPERTY Expiration Date: 10/18/2021 Address: 1740 ORIOLE CT IVR Number: 32060 CARLSBAD, CA 92011-4052 Inspection No. June 8, 2021: Inspection Status 1. No buildings Deficiencies. Primary Inspector 2. Rough combination Inspection, her engineers plans and detail specifications -Approved. 3. Tub shower enclosures, hot mop scope of work-approved. 4. Gas plumbing test, under air pressure leak test-approved. 5. Exterior stucco lath wire Inspection-Approved. 174257-2022 COMMENTS Failed Tony Alvarado Reinspection Inspection Yes Reinspection Incomplete Passed BLDG-Building Deficiency January 10, 2022: No 0412912022 04/29/2022 BLDG~Final Inspection Checklist Item 1. Informed owner builder/contractor representative Alvin, regarding outstanding coastal commission and planning/zoning requirements-flagged on computer system. 2. Spoke to Alvin/owner Builder, will address coastal commission and planning zoning outstanding requirements prior to scheduling a final building inspection. 181689-2022 COMMENTS Passed Tony Alvarado BLDG-Building Deficiency January 10, 2022: BLOG-Plumbing Final BLDG-Mechanical Final BLDG-Structural Final BLDG-Electrical Final Wednesday,June1,2022 1. Informed owner builder/contractor representative Alvin, regarding outstanding coastal commission and planning/zoning requirements-flagged on computer system. 2. Spoke to Alvin/owner Builder, will address coastal commission and planning zoning outstanding requirements prior to scheduling a final building inspection. April 29, 2022: 1. Final MEPS-(mechanical, electrical, plumbing, and structural framing), scope of work per plan-approved. April 29, 2022: 1. Final MEPS-(mechanical, electrical, plumbing, and structural framing), scope of work per plan-approved. April 29, 2022: 1. Final MEPS-(mechanical, electrical, plumbing, and structural framing), scope of work per plan-approved. April 29, 2022: 1. Final MEPS-(mechanical, electrical, plumbing, and structural framing), scope of work per plan-approved. Complete Passed No Yes Yes Yes Yes Page 6 of7 PERMIT INSPECTION HISTORY for (CBR2021-0687) Permit Type: BLDG-Residential Work Class: Second Dwelling Unit Application Date: 03/12/2021 Issue Date: 04/21/2021 Owner: AW DEVELOPMENT & DESIGN LLC Subdivision: CARLSBAD TCT#97-15 LOHF PROPERTY Status: Scheduled Date Closed -Finaled Expiration Date: 10/18/2021 Address: 1740 ORIOLE CT IVR Number: 32060 CARLSBAD, CA 92011-4052 Actual Inspection Type Start Date Inspection No. Inspection Status Primary Inspector Reinspection Inspection Checklist Item BLDG-14 Frame-Steel-Bolting-Welding (Decks) BLDG-14 Frame-Steel-Bolting-Welding (Decks) BLDG-24 Rough-Topout BLDG-34 Rough Electrical COMMENTS June 8, 2021: 1. No buildings Deficiencies. 2. Rough combination Inspection, her engineers plans and detail specifications -Approved. 3. Tub shower enclosures, hot mop scope of work-approved. 4. Gas plumbing test, under air pressure leak test-approved. 5. Exterior stucco lath wire Inspection-Approved. June 7, 2021: wire stucco lath -not completed. No rough combination inspections permitted, prior to Exterior stucco wire lath paper and roof underlayment felt paper (dried-in) and installed first. 1. exterior stucco wire lath building deficiencies. 2. New exterior stucco wire lath, type, size, with moistop protective material, at all perimeter windows and doors, scope of work-not ready, not finished due to rain. 3. Informed -owner/contractor Alvin, inspection process for the city of Carlsbad. June 8, 2021: 1. No buildings Deficiencies. 2. Rough combination Inspection, her engineers plans and detail specifications -Approved. 3. Tub shower enclosures, hot mop scope of work-approved. 4. Gas plumbing test, under air pressure leak test-approved. 5. Exterior stucco lath wire Inspection-Approved. June 8, 2021: 1. No buildings Deficiencies. 2. Rough combination Inspection, her engineers plans and detail specifications -Approved. 3. Tub shower enclosures, hot mop scope of work-approved. 4. Gas plumbing test, under air pressure leak test-approved. 5. Exterior stucco lath wire Inspection-Approved. Passed Yes No Yes Yes Wednesday, June 1, 2022 Page 5 of 7 PERMIT INSPECTION HISTORY for (CBR2021-0687) Permit Type: BLDG-Residential Work Class: Second Dwelling Unit Status: Closed -Finaled Scheduled Actual Inspection Type Date Start Date 06/08/2021 06/08/2021 BLDG-23 Gas/Test/Repairs Checklist Item Application Date: 03/12/2021 Issue Date: 04/21/2021 Expiration Date: 10/18/2021 IVR Number: 32060 Owner: AW DEVELOPMENT & DESIGN LLC Subdivision: CARLSBAD TCT#97-15 LOHF PROPERTY Address: 1740 ORIOLE CT CARLSBAD, CA 92011-4052 Inspection No. Inspection Primary Inspector Reinspection Inspection Status 159320-2021 Passed Tony Alvarado Complete COMMENTS Passed BLDG-Building Deficiency June 8, 2021: Yes Wednesday, June 1, 2022 BLDG-27 Shower Pan/Tubs Checklist Item 1. No buildings Deficiencies. 2. Rough combination Inspection, her engineers plans and detail specifications -Approved. 3. Tub shower enclosures, hot mop scope of work-approved. 4. Gas plumbing test, under air pressure leak test-approved. 5. Exterior stucco lath wire Inspection-Approved. 159319-2021 Passed COMMENTS Tony Alvarado BLDG-Building Deficiency June 8, 2021: BLDG-83 Roof Sheating, Exterior Shear (13, 15) Checklist Item BLDG-15 Roof Sheathing-Reroof BLDG-84 Rough Combo(14,24,34,44) 1. No buildings Deficiencies. 2. Rough combination Inspection, her engineers plans and detail specifications -Approved. 3. Tub shower enclosures, hot mop scope of work-approved. 4. Gas plumbing test, under air pressure leak test-approved. 5. Exterior stucco lath wire Inspection-Approved. 159175-2021 Passed COMMENTS 159176-2021 Passed Tony Alvarado Tony Alvarado Complete Passed Yes Complete Passed Yes Complete Page 4 of 7 PERMIT INSPECTION HISTORY for (CBR2021-0687) Permit Type: BLDG-Residential Work Class: Second Dwelling Unit Application Date: 03/12/2021 Issue Date: 04/21/2021 Owner: AW DEVELOPMENT & DESIGN LLC Subdivision: CARLSBAD TCT#97-15 LOHF PROPERTY Status: Scheduled Date 06/07/2021 Closed -Finaled Expiration Date: 10/18/2021 Address: 1740 ORIOLE CT IVR Number: 32060 CARLSBAD, CA 92011-4052 Actual Inspection Type Start Date Inspection No. Inspection Status Primary Inspector Checklist Item BLDG-Building Deficiency COMMENTS June 3, 2021: 1. No re-roof sheathing nailing/building deficiencies. 2. Re-roof sheeting, plywood type, size, and nailing pattern, dry-rot damaged of existing Sheathing, scope of work-approved. 06/07/2021 BLDG-18 Exterior Lath/Drywall 159133-2021 Failed Tony Alvarado Checklist Item BLDG-Building Deficiency COMMENTS June 7, 2021: wire stucco lath-not completed. 1. exterior stucco wire lath building deficiencies. 2. New exterior stucco wire lath, type, size, with moistop protective material, al all perimeter windows and doors, scope of work-not ready, not finished due to rain. BLDG-84 Rough Combo(14,24,34,44) 159055-2021 Failed Tony Alvarado Checklist Item BLDG-Building Deficiency BLDG-14 Frame-Steel-Bolting-Welding (Decks) COMMENTS June 7, 2021: wire stucco lath-not completed. No rough combination inspections permitted, prior to Exterior stucco wire lath paper and roof underlayment felt paper (dried-in) and installed first. 1. exterior stucco wire lath building deficiencies. 2. New exterior stucco wire lath, type, size, with moistop protective material, at all perimeter windows and doors, scope of work-not ready, not finished due to rain. 3. Informed -owner/contractor Alvin, inspection process for the city of Carlsbad. June 7, 2021: wire stucco lath-not completed. No rough combination inspections permitted, prior to Exterior stucco wire lath paper and roof underlayment felt paper (dried-in) and installed first. 1. exterior stucco wire lath building deficiencies. 2. New exterior stucco wire lath, type, size, with moistop protective material, at all perimeter windows and doors, scope of work-not ready, not finished due to rain. 3. Informed -owner/contractor Alvin, inspection process for the city of Carlsbad. Reinspection Inspection Passed Yes Reinspection Incomplete Passed No Reinspection Incomplete Passed No No Wednesday, June 1, 2022 Page 3 of 7 PERMIT INSPECTION HISTORY for (CBR2021-0687) Permit Type: BLDG-Residential Work Class: Second Dwelling Unit Application Date: 03/12/2021 Issue Date: 04/21/2021 Owner: AW DEVELOPMENT & DESIGN LLC Subdivision: CARLSBAD TCT#97-15 LOHF PROPERTY Status: Scheduled Date 05/07/2021 06/03/2021 Closed -Finaled Expiration Date: 10/18/2021 Address: 1740 ORIOLE CT IVR Number: 32060 CARLSBAD, CA 92011-4052 Actual Inspection Type Start Date Inspection No. Inspection Status Primary Inspector Checklist Item BLDG-Building Deficiency BLDG-Building Deficiency COMMENTS May 3, 2021: 1. No underground plumbing Deficiencies. 2. Underground plumbing, under 1 O' ft. high head pressure water leak test, for new ADU structure, waste and vent plumbing lines, located at rear side of property yard -Approved. 3. Informed owner/contractor developer (Alvin) The following: a) required height certification, footing bottoms/pad certification, and property line setbacks verified, for detached, new accessory dwelling building. Cancelled per contractor 0510712021 BLDG-11 156835-2021 Partial Pass Tony Alvarado Foundation/Ftg/Piers (Rebar) Checklist Item BLDG-Building Deficiency COMMENTS May 7, 2021: 1. No footings/foundation steel reinforcemenVbuilding deficiencies. 2. Foundation footings/slab steel reinforcement rebar, per structural engineers plans and detail specifications - approved. 3. Pending: property line setbacks to building forms certification and Geotech footing bottoms and slab pad certification. 4. Informed Owner Alvin, regarding engineer's certifications. 06/03/2021 BLDG-13 Shear Panels/HD (ok to wrap) 158956-2021 Passed Tony Alvarado Checklist Item BLDG-Building Deficiency COMMENTS June 3, 2021: 1. No re-roof sheathing nailing/building deficiencies. 2. Shear-wall nailing, plywood type, size, and nailing pattern, Per structural engineers plans and detail specification tables-approved. BLDG-15 Roof/ReRoof (Patio) 158957-2021 Passed Tony Alvarado Reinspection Inspection Passed Yes No Reinspection Incomplete Passed Yes Complete Passed Yes Complete Wednesday, June 1, 2022 Page 2 of 7 Building Permit Inspection History Finaled ( City of Carlsbad PERMIT INSPECTION HISTORY for (CBR2021-0687) Permit Type: BLDG-Residential Work Class: Second Dwelling Unit Status: Closed -Finaled Scheduled Actual Inspection Type Date Start Date 04123/2021 04/2312021 BLDG-SW-Pre-Con Checklist Item Application Date: 03/12/2021 Issue Date: 04/21/2021 Expiration Date: 10/18/2021 IVR Number: 32060 Inspection No. 155791-2021 COMMENTS Inspection Status Passed Owner: AW DEVELOPMENT & DESIGN LLC Subdivision: CARLSBAD TCT#97-15 LOHF PROPERTY Address: 1740 ORIOLE CT CARLSBAD, CA 92011-4052 Primary Inspector Reinspection Inspection Tony Alvarado Complete Passed BLDG-Building Deficiency April 23, 2021: (phone call/virtual inspection). Yes 04/30/2021 04/30/2021 BLDG-21 U nderg rou n d/U nderfl o or Plumbing Checklist Item No building deficiencies. 1. Inform pool contractor Alvin, regarding the following: 2. Temporary toilet facilities require pan under toilet Temporary toilet facilities require pan under toilet I need to be located outside public right-of-way and on owners property. 3. Dirt spoils/stockpiling, requires be covered and protected, dust and runoff containment, with straw waddle or gravel/sandbags. 4. Contain all soil erosion and sediment erosion on property, keep any soil or debris away from storm water inlet, adjacent property owners, and public-right-of-way sidewalk areas (typical). 5. Final as-built plan revisions need to be approved prior to final inspection, for historical purposes and city records management maintaining latest and greatest current plans on file. 6. Security perimeter fencing and gates installed at all times during the construction process till final clearances and sign offs from all agencies/depts. 7. Hours of construction observed., 8. Federal holidays observed and no construction work allowed. 9. Additional preconstruction requirements may follow. 156362-2021 Cancelled Chris Renfro COMMENTS BLDG-Building Deficiency Cancelled per contractor 05/03/2021 05/03/2021 BLDG-21 Wednesday, June 1, 2022 Underground/Underflo or Plumbing 156468-2021 Partial Pass Tony Alvarado Reinspection Incomplete Passed No Reinspection Incomplete Page 1 of 7 Carlsbad CBR2021-0687 March 30, 2021 ( City of Carlsbad SPECIAL INSPECTION AGREEMENT 8-45 Development Services Building Division 1635 Faraday Avenue 760,602-2719 www.carlsbadca.gov In accordance with Chapter 17 of the Callfornla Bulldlng Code the followlng must be completed when work being performed requires special Inspection, structural observation and construction material testing, Project/Permit: _________ _ Project Address· / 7 3 B Qp_, 0 L !(" (', A. THIS SECTION MUST BE COMPLETED BY THE PROPERTY OWNER/AUTHORIZED AGENT. Please check if you are Owner-Builder ){I. (If you checked as owner-builder you musl also complete Section B of this agreement.) MailingAddress· 17515 Of'-101..,;.' Cy Email· Rv......,T"f1rl,A .r( (. I t,.L.. e.M$'/\( · ( "l!VV'j I am: !(Property Owner □Property Owner's Agent of Record □Architect of Record UEngineer or Record State of California Registration Numbe,c· ____________ _ Expiration Date .. · ________ _ AGREEMENT: I, the undersigned, declare under penalty of perjury under the laws of the State or California, that I have read, understand, acknowledge and promise lo comply with the Cily of Carlsbad requirements for special inspections, structural observations, construction materials testing and off-site fabrication of building components, as prescribed in the statement of special in~ ~he approved plans and, as required by the California Building Code. Signatur --~ Date:~3ulc.S~l_,f~z_~J _____ _ B. CONTRACTOR'S STATEMENT OF RESPONSIBILITY (07 CBC, Ch 17, Section 1706), This section must be completed by the contractor I builder/ owner-builder. Contractor's Company Name: ___________________ Please check if you are Owner-Builder}(_ Name: (PloaseplioTI AL.VIN )1.JAs,.\1,-!(,~ ► (HS!i IMI) llUO Mailing Address: /73 £. Q,;,, 'l::,Lb U\l<LS(;tl!)J CA State of California Contractor's License Number __________ Expiration Date: _______ _ I acknowledge and, am aware, of special requirements contained in the statement of special inspectiOns noted on the approved plans; I acknowledge that control will be exercised to obtain confonnance with the construction documents approved by the building official: • r wrn have in-place procedures for exercising control within our (the contractor's) organization, for the method and frequency of reporting and lhe distribution of the reports; and I certify that I wil have a qualified person within our (the contractor's) organization to exercise such control. I will Provide a final rnoortl letter In comollance with CBC Section 1704 1 2 velor to reouesYaa flnat C. ~->< ::::, I Signatur "=''.:~-=====-____________ Date: _.,$'l-/,..,LI ,µZ.ec.!..I _____ _ B-45 Paget oft Rev. 08111 DATE: April 13, 2021 JURISDICTION: Carlsbad PLAN CHECK#.: CBR2021-0687 ✓• EsG1I SET II PROJECT ADDRESS: 1738 Oriole CT PROJECT NAME: ADU for Alvin Washington 0 APPLICANT 0 JURIS. ~ The plans transmitted herewith have been corrected where necessary and substantially comply with the jurisdiction's building codes. D The plans transmitted herewith will substantially comply with the jurisdiction's codes when minor deficiencies identified below are resolved and checked by building department staff. D The plans transmitted herewith have significant deficiencies identified on the enclosed check list and should be corrected and resubmitted for a complete recheck. D The check list transmitted herewith is for your information. The plans are being held at EsGil until corrected plans are submitted for recheck. D The applicant's copy of the check list is enclosed for the jurisdiction to forward to the applicant contact person. D The applicant's copy of the check list has been sent to: ~ EsGil staff did not advise the applicant that the plan check has been completed. D EsGil staff did advise the applicant that the plan check has been completed. Person contacted: Telephone#: Date contacted: Mail Telephone 0 REMARKS: By: Abe Doliente EsGil (by: ) Email: Fax In Person Enclosures: 4/6/21 9320 Chesapeake Drive, Suite 208 ♦ San Diego, California 92123 ♦ (858) 560-1468 ♦ Fax (858) 560-1576 • DATE: March 30, 2021 JURISDICTION: Carlsbad PLAN CHECK#.: CBR2021-0687 ✓• EsG1I SETI PROJECT ADDRESS: 1738 Oriole CT PROJECT NAME: ADU for Alvin Washington □ APPLICANT □ JURIS. D The plans transmitted herewith have been corrected where necessary and substantially comply with the jurisdiction's building codes. D The plans transmitted herewith will substantially comply with the jurisdiction's codes when minor deficiencies identified below are resolved and checked by building department staff. D The plans transmitted herewith have significant deficiencies identified on the enclosed check list and should be corrected and resubmitted for a complete recheck. ~ The check list transmitted herewith is for your information. The plans are being held at EsGil until corrected plans are submitted for recheck. D The applicant's copy of the check list is enclosed for the jurisdiction to forward to the applicant contact person. ~ The applicant's copy of the check list has been sent to: Alvin Washington D EsGil staff did not advise the applicant that the plan check has been completed. ~ EsGil staff did advise the applicant that the plan check has been completed. Person contacted: Alvin Washington Telephone#: 760-809-8732 Date contacted: (by: Email: runtafinancial@msn.com Mail Telephone 0 REMARKS: By: Abe Doliente EsGil Fax In Person Enclosures: 3/16/21 9320 Chesapeake Drive, Suite 208 ♦ San Diego, California 92123 ♦ (858) 560-1468 ♦ Fax (858) 560-1576 Carlsbad CBR2021-0687 March 30, 2021 PLAN REVIEW CORRECTION LIST SINGLE FAMILY DWELLINGS AND DUPLEXES PLAN CHECK#.: CBR2021-0687 PROJECT ADDRESS: 1738 Oriole CT FLOOR AREA: ADU -744 SF REMARKS: DATE PLANS RECEIVED BY JURISDICTION: DATE INITIAL PLAN REVIEW COMPLETED: March 30, 2021 FOREWORD (PLEASE READ): JURISDICTION: Carlsbad STORIES: 1 HEIGHT: DATE PLANS RECEIVED BY ESGIL CORPORATION: 3/16/21 PLAN REVIEWER: Abe Doliente • This plan review is limited to the technical requirements contained in the California Residential Code, California Building Code, California Plumbing Code, California Mechanical Code, California I Electrical Code and state laws regulating energy conservation, noise attenuation and access for the disabled. This plan review is based on regulations enforced by the Building Department. You may have other corrections based on laws and ordinance by the Planning Department, Engineering Department, Fire Department or other departments. Clearance from those departments may be required prior to the issuance of a building permit. Present California law mandates that construction comply with the 2019 edition of the California Code of Regulations (Title 24), which adopts the following model codes: 2019 CRC, 2019 CBC, 2019 CPC, 2019 CMG and 2019 CEC. The above regulations apply, regardless of the code editions adopted by ordinance. The following items listed need clarification, modification or change. All items must be satisfied before the plans will be in conformance with the cited codes and regulations. Per Sec. 105.4 of the 2019 California Building Code, the approval of the plans does not permit the violation of any state, county or city law. To speed up the recheck process, please note on this list (or a copy) where each correction item has been addressed, i.e., plan sheet number, specification section, etc. Be sure to enclose the marked up list when you submit the revised plans. Carlsbad CBR2021-0687 March 30, 2021 PLANS Please make all corrections, as requested in the correction list. Submit FOUR new complete sets of plans for commercial/industrial projects (THREE sets of plans for residential projects). For expeditious processing, corrected sets can be submitted in one of two ways: 1. Deliver all corrected sets of plans and calculations/reports directly to the City of Carlsbad Building Department, 1635 Faraday Ave., Carlsbad, CA 92008, (760) 602- 2700. The City will route the plans to EsGil and the Carlsbad Planning, Engineering and Fire Departments. 2. Bring TWO corrected set of plans and calculations/reports to EsGil, 9320 Chesapeake Drive, Suite 208, San Diego, CA 92123, (858) 560-1468. Deliver all remaining sets of plans and calculations/reports directly to the City of Carlsbad Building Department for routing to their Planning, Engineering and Fire Departments. NOTE: Plans that are submitted directly to EsGil only will not be reviewed by the City Planning, Engineering and Fire Departments until review by EsGil is complete. 1. A reminder that due to Covid-19, the City will not permit counter corrections. Please make sure all the items are satisfied; otherwise, another round of corrections will be necessary 2. All sheets of plans must be signed by the person responsible for their preparation. (California Business and Professions Code). Signatures on the final sets of plans will be verified before they are approved. 3. Plans shall have the structural portions signed and sealed by the California state licensed engineer or architect responsible for their preparation, along with structural calculations. (California Business and Professions Code). Signatures on the final sets of plans will be verified before they are approved. FOUNDATION REQUIREMENTS 4. Provide a letter from the soils engineer confirming that the foundation plan, grading plan and specifications have been reviewed and that it has been determined that the recommendations in the soils report are properly incorporated into the construction documents. 5. The plans indicate that special inspection will be provided. Please complete the attached City Special Inspection form. ELECTRICAL 6. Note on the plans that receptacle outlet locations will comply with CEC Article 210.52. Carlsbad CBR2021-0687 March 30, 2021 7. Include on the plans the following specifications for electrical devices installed in dwellings: CEC Article 210 & 406 a) Tamper resistant receptacles for all locations described in 210.52 and 550.13.(i.e. all receptacles in a dwelling). b) Weather resistant type for receptacles installed in damp or wet locations (outside). 406.4(0)(6). c) Arc-fault protection for all outlets (not just receptacles) located in rooms described in NEC 210.12(A): Kitchens, laundry areas, family, living, bedrooms, dining, halls, etc. d) GFCI protected outlets for locations described in NEC 210.8(A): Laundry areas, kitchen dishwashers, kitchens, garages, bathrooms, outdoors, within 6' of a sink, etc. 8. Per CEC Article 210.11 (C)1, note on the plans that there will be a minimum of 2 small appliance branch circuits within the locations specified in Article 210.52(B), i.e., kitchen and dining areas. 9. Show on the plans a wall receptacle within 36" of each lavatory in the bathroom. CEC 210.52(0). 10. A separate (detached building with a separate foundation and slab) ADU requires a separate ground electrode system per CEC 250.32 PLUMBING 11. An instantaneous water heater is shown on the plans. Please include a gas pipe sizing design (isometric or pipe layout) for all gas loads. a) The gas pipe sizing for a tank type water heater shall be based upon a minimum 199,000 Btu gas input rating. Energy Standards 150.0(n). 12. Specify on the plans: Water conserving fixtures: New water closets shall use no more than 1.28 gallons of water per flush, kitchen faucets may not exceed 1.8 GPM, lavatories are limited to 1.2 GPM, and showerheads may not exceed 1.8 GPM of flow. CPC Sections 407,408,411,412. RESIDENTIAL GREEN BUILDING STANDARDS The California Building Standards Commission has adopted the Green Building Standards Code and must be enforced by the local building official. The following mandatory requirements for residential construction must be included on your plans. CGC Section 101.3. The Standards apply to newly constructed residential buildings, along with additions/alterations that increase the building's conditioned area, volume or size. CGC Section 301.1.1. Provide a sheet on the plans labeled "Green Building Code Requirements" and include the following notes as applicable. Carlsbad CBR2021-0687 March 30, 2021 13. Note on the plans that landscape irrigation water use shall have weather or soil-based controllers. CGC Section 4.304.1. 14. Recycling. Note on the plans that a minimum of 65% of construction waste is to be recycled. CGC Section 4.408.1. 15. Recycling. Note on the plans that the contractor shall submit a Construction Waste Management Plan, per CGC Section 4.408.2. 16. Operation and maintenance manual. Note on the plans that the builder is to provide an operation manual (containing information for maintaining appliances, etc.) for the owner at the time of final inspection. CGC Section 4.410.1. 17. Pollutant control. Note on the plans that during construction, ends of duct openings are to be sealed, and mechanical equipment is to be covered. CGC Section 4.504.1. 18. Pollutant control. Note on the plans that VOC's must comply with the limitations listed in Section 4.504.3 and Tables 4.504.1, 4.504.2, 4.504.3 and 4.504.5 for: Adhesives, Paints and Coatings, Carpet and Composition Wood Products. CGC Section 4.504.2. 19. Interior moisture control. Note on the plans that concrete slabs will be provided with a capillary break. CGC Section 4.505.2.1. 20. Interior moisture control. Note on the plans that the moisture content of wood shall not exceed 19% before it is enclosed in construction. The moisture content needs to be certified by one of 3 methods specified. Building materials with visible signs of water damage should not be used in construction. The moisture content must be determined by the contractor by one of the methods listed in CGC Section 4.505.3. 21. Indoor air quality. Note on the plans that bathroom fans shall be Energy Star rated, vented directly to the outside and controlled by a humidistat. CGC 4.506.1. 22. Note on the plans that prior to final inspection the licensed contractor, architect or engineer in responsible charge of the overall construction must provide to the building department official written verification that all applicable provisions from the Green Building Standards Code have been implemented as part of the construction. CGC 102.3. ENERGY CONSERVATION 23. Include on the Title Sheet of the plans the following statement: "Compliance with the documentation requirements of the 2019 Energy Efficiency Standards is necessary for this project. Registered, signed, and dated copies of the appropriate CF1 R, CF2R, and CF3R forms shall be made available at necessary Carlsbad CBR2021-0687 March 30, 2021 intervals for Building Inspector review. Final completed forms will be available for the building owner." 24. When replacing or modifying the mechanical system: If applicable. o If more than 40' of new ductwork is installed in unconditioned space, HERS inspection is required for both existing and new duct sealing. o Replacement of mechanical equipment (air handler, condensing unit of an air conditioner or heat pump, cooling or heating coil, or the furnace heat exchanger) requires HERS inspection. o Note: The CF1 R-AL T-HVAC form may be submitted at the final inspection, it is not required at initial plan submittal. MISCELLANEOUS 25. To speed up the review process, note on this list (or a copy) where each correction item has been addressed, i.e., plan sheet, note or detail number, calculation page, etc. 26. Please indicate here if any changes have been made to the plans that are not a result of corrections from this list. If there are other changes, please briefly describe them and where they are located in the plans. • Have changes been made to the plans not resulting from this correction list? Please indicate: Yes □ No □ 27. The jurisdiction has contracted with EsGil, located at 9320 Chesapeake Drive, Suite 208, San Diego, California 92123; telephone number of 858/560-1468, to perform the plan review for your project. If you have any questions regarding these plan review items, please contact Error! Reference source not found. at EsGil. Thank you. • Carlsbad CBR2021-0687 March 30, 2021 [DO NOT PAY -THIS IS NOT AN INVOICE] VALUATION AND PLAN CHECK FEE JURISDICTION: Carlsbad PREPARED BY: Abe Doliente BUILDING ADDRESS: 1738 Oriole CT BUILDING OCCUPANCY: R3 BUILDING AREA Valuation PORTION ( Sq. Fl.) Multiplier ADU 744 141.78 Air Conditioning 744 5.30 Fire Sprinklers TOTAL VALUE Jurisdiction Code cb By Ordinance 1997 UBC Building Permit Fee ...- t,I 'ii 1997 UBC Plan Check Fee • Type of Review: [7] Complete Review D Repetitive Fee ,.. Repeats Comments: □ Other D Hourly EsGil Fee PLAN CHECK#.: CBR2021-0687 DATE: March 30, 2021 Reg. VALUE ($) Mod. 105,484 3,943 109,428 [l Structural Only $430.011 Sheet 1 of 1 Washington ADU 1738 Oriole Court Carlsbad, CA 92011 Structural Calculations -21052 Qualls Engineering Structural Engineering Services Diego Lastres DiegoLas3@gmail.com Qualls Engineering Structu,raJ Bneineering Services GOVERNING CODE: CONCRETE: REINFORCING STEEL: SAWN LUMBER: Project: Washington ADU Engineer: -=-AL=--------- DESIGN BASIS 2019 CBC f c = 2,500 psi (MI NlMUM) ASTM ,-\615, Fr = 60 ksi Sheet: 1 / 7 Job#: 21052 Date: 3/10/21 DOUGLAS FIR LARCH, ALLOWABLE STRESS DESIGN PER 2019 CBC. PROJECT SCOPE Project consists of a proposed approximately 730 sguare foot one-story detached accessory dwelling unit to a property with an existing two-story single-family residence located at 1738 Oriole Ct, Carlsbad, CA, 92011. The proposed accessory dwelling unit is primarily constructed utilizing wood frame construction with 2x stick framed roof and typical slab on grade with turned down footings. There has been a soils report provided for this project by Construction Testing & Engineering, Inc., dated 03/01/2021. Therefore, the foundation design will be based on recommendations of the project geotechoical engineer. Qualls Engineering Stn.ictlU'al ~ngineering Service• Project: Washington ADU Sheet: 2 Engineer: _A_L __________ _ Job #: 21052 Date: Design Loads: Pitched Roof: Dead Load ( DL) Roofing I /2" Plywood Truss Framing Insulation I /2" Gyp. Bd. Mech./Elec. 111.isc. IDL = Live Load (LL) 5.0 psf 1.8 psf 4.0 psf 0.5 psf 2.2 psf 0.5 psf 1.0 psf 15.(J psf LL = ___ ...;;;20;;,;..0::_psf (Reducible) DL +LL =! 35.0!psf Walls: Stud Walls Exterior Stud Walls Interior Stud Walls Allowable Soils Bearing Pressure: ASBP = 2.500 Seismic: Site Class: C Ss = 0.999 S1 = 0.363 15.0 7.0 psf psf psf@ 24 inches below lowest adjacent finished grade F, = 1.200 [\_ = - Response SMs = 1.199 S,\11 = - Redundancy pCs Sos = 0.799 Soi = - Occupancy Importance Mod. Factor Factor Sos/(R/1) Category Factor, I, ]] 1.00 Wind Load: (Simplified Envelope Procedure) Basic Wind 95 mph Exposure: C MWFRS P = 0.6*A*K,.*Ps,o (LRFD): P = (ASD): p =I 16.0 psf 9.6!psf Components & Cladding P = 0.6*A*K,..*P,..,1,o (LRFD): P = (ASD): p =I 19.6 psf 11.slrsf R p (LIU1D ) (,\SD ) 6.5 1.3 0.160 0.114 X= 1.21 K.,= ].{) Ps30= 13.2 Pnet.\O= 16.2 Qualls Engineering Sheet: 3 Smu:.tural Enginee,ring Se.rvkes Project: Washington ADU Job#: 21052 Engineer: AL Dare: V ~rtical Design Level: ~oo r=- D1.= ') psf LR= 1-'-" psf IL= psf Member: r:l,~-1 ~ Wi= /1,'111.(ISiv,:,)-:::'1--=t-~ __..,, W2= t P1= P2= Use: -:J.x/0 I, /'i I, Vmu= 3JD lbs V.u -Wtl lbs 1 '1 Rt -~30 lbs Mmax= //52 ft-lbs M.u= ;2. 6/<J-ft-lbs RR= lbs l req'd -3~ jn◄ I= ?2 m◄ Member: !J:.~-l W1= ,Sf~ X ""t' " ilSPU-- ~ .,..-0 W2= l <>Pl,f" s· t~t P1= P2= Use: '-l>l I 0 1. f') ' I, It Vmax = o/'1-S lbs V.n-'1'8~ lbs 1 '1 R1,= <-/J.S-lbs M,nu-Ct.riD ft-lbs M.n-r, Z-l1. ft-lbs RR --/7-!? lbs In,q'd = II in4 I = 2-J/ m◄ Member: ~1.-z (~·½ W1= 2. (1s-r-v'):. :;.o l''-P. ~ W2= P1= ~ {KB _,.) ,. '-()-S-~ ).J tf t P2= Use: ~XIO I, Ll ,S It Vmax = 1-oD lbs V.u-71.fv?.. lbs 1 TOO 1 (/1.,J'f R1, -lbs Mmu= iJ1>0 ft-lbs M.n= ft-lbs RR= II lbs I,cq'd = (,5" in4 I= "s'f]. in4 Member: W1= W.2= t t P,= P2= Use: I, I, V"""' = lbs v.11= lbs 1 '1 Rt.= lbs Mmu -ft-lbs M.n-ft-lbs RR= lbs lrcq'd = m4 1-m◄ Qualls Engineering Structural Engineering Services Sheet: ~4 __ _ Project: Washington ADU Job#: 21052 Date: Engineer: AL --------- fl'J, "" , v?,2. (' r ,. u,) ~ 'I r-l'LF V.. I 1,-t> If ;v/ M ,W : •t.t fJl,f '/( (z • (;") /. ;2.... wf,..,.._I' & 1 / 60 ~ ¼u .. x,••(>/IIY3''~ 280# )((),7' s,1'1Ars°"' sos S'(.A.El;J u) e-;L'f(V Jl,1Frt'~5 @((/'().{ Tl} ,1-u~A/ NI ¥ tPl2Ct S·TVIIJ / ( iP)-Y.t ,.){ 3 " ~ ~W\fJ$0/J sas su:tv1-J s t SI h1 PJttll "ST'f ~ ~T>'v+P +-S-TVt.l rt> B~ V~ l,(. tr V 1M,.., Jq 'I,; > I 1-0'1! Qualls Engineering Sttu<:tural Enpitt.rln& Scrvie.e• Level Component Weight (psf) Diaohramn I 15 Roof Diaohramn 2 15 Exterior Wall 15 Interior Wall 7 C, (ASD) W (lbs) V (lbs) 0.1 14 25,705 2,935 Ps 9.6 North-South Level Roof Peak Roof Direction North-South East-West Height (ft) 14 11 24 Governing Load Wind I 3.4 osf Seismic r 3.1 nsf Project: Washington ADU Engineer: AL ------------- Lateral Analysis Tributary Area {ft2) Tributary Tributary Weight rweight Length (ft) Height (ft) (lbs) (lbs) 940 14,100 0 0 25,705 122 11.0 20,130 40 I 11.0 3,0R0 V (psf) 3.1 Wind Check East-West Sheet: 5 Job #: 21052 Dace: V, (psf) Level Diaphragm Height (ft) Depth ft) V, (psf) 3.4 Roof Peak Roof 14 11 37 2.2 Qualls Engineering Smic tural. EQgineeriQg Services Direction Controlling Load North-South Wind Level V,(psf) Grid 2 Roof 3.4 3 4 North-South Level Grid 2 Roof 3 4 East-West Level Grid A Roof B C Project: Washington ADU Sheet: 6 Job#: 21052 Dace: Engineer: AL ------------- LATERAL DESIGN Direction Controlling Load East-West Seismic Trib Area /Wl V(lbs) Level V,(psf) Grid Trib Area lft21 350 1,188 A 130 130 441 Roof 3.1 B 480 480 1,629 C 350 Wall Length (ft) Wall l Wall2 Total Minimum v (nlf) h:2w SW Type 11.25 1125 11.25 106 1.00 6E 4 4 4 1 IO 1.38 6E 7.75 7.75 7.75 210 1.00 6E Wall Length (ft) Wall 1 Wall 2 Total Minimum V (plJ) h:2w SW Type 8 8 8 51 1.00 6E 4.75 4.75 4.75 316 1.16 4E 6.25 6.25 6.25 175 1.00 6E Overturning Analysis I H.(ft) I Roof Dead (pol) Ext Wall Dead (pol) Int Wall Dead (psi) I Roolf II 15 15 7 I North-South L,.. min (ft) V (plf) Add'I M,., (ft-lbs) M,,.(ft-lbs) RoofTrib (ft) Ext Wall (ft) M,., (ft-lb,) T(lb•) HD I 2 11.25 I06 13,067 I II 11,391 5S4 None Roof I 3 4 110 4.853 1 11 1,440 997 HDL'2 I 4 7.75 210 17,921 I II 5,406 1,894 IIDL'2 East-West L.min (ft) v(t>ll) Add'I M., (ft-lbs) M,,. (ft-lbs) RoofTrib (ft) Ext Wall (ft) M,.. (ft-lbs) T (lbs) HD I A 8 51 4.465 5 II 7.680 0 Nom· Roof I B 4.75 316 16,487 7 11 3,046 2,966 HDL'2 I C 6.25 17S 12,022 7 11 5.273 1.259 IIDL'2 V (lbs) 406 1,499 1,093 Capacity (lbs) 600 3.075 Ca aci bs 600 .l,075 3.075 Qualls Engineering StnKtw'al Engineerln& Service• FOUNDATION DESIGN Project: Washington ADU Engineer: _AL _________ _ Sheet: --'-7 __ _ Job#: 21052 Date: Allowable Soils Bearing Capacity Foundation design 2,500 psf b = 12 d = 24 _:J 12 24 2 #4 inch wide x inch deep footing with top and bottom Allowable Max Line Load W max = b X ASBP Allowable Max Point Load P max = b X 2d X ASBP Spread Footing Design 1::=::====== = 2,500 plf = 10,000 lbs 2 P max = b X ASBP F2 = 2 foot square footing with 3 # 4 each way @ btm pmax = 10,000 lbs F2.5 = 2.5 foot square footing with 3 # 4 each way @ btm Pmax = 15,625 lbs F3 = 3 foot square footing with 4 # 4 each way @ btm Pmax = 22,500 lbs F3.5 = 3.5 foot square footing with 4 # 4 each way @ btm Pmax = 30,625 lbs F4 = 4 foot square footing with 5 # 4 each way @ btm pmax = 40,000 lbs FS = 5 foot square footing with 6 # 4 each way @ btm Pmax = 62,500 lbs Construction Testing & Engineering, Inc. Inspection I Testing I Geotechnical I Environmental & Construction Engineering I Civil Engineering I Surveying PRELIMINARY GEOTECHNICAL INVESTIGATION PROPOSED WASHINGTON ADU 1738 ORIOLE COURT CARLSBAD, CALIFORNIA Prepared for: MR. ALVIN WASHINGTON P.O. BOX 1212 CARLSBAD, CALIFORNIA Prepared by: CONSTRUCTION TESTING & ENGINEERING, INC. 1441 MONTIEL ROAD, SUITE 115 ESCONDIDO, CALIFORNIA 92026 CTE JOB NO.: 10-159920 MARCH 1, 2021 1441 Montiel Road, Suite 115 I Escondido, CA 92026 I Ph (760) 746-4955 Fax (760) 746-9806 I www.cte-inc.net ..... co (.0 0 I 'I"'" N 0 N 0::: co 0 > 1--0 TABLE OF CONTENTS 1.0 INTRODUCTION AND SCOPE OF SERVICES ................................................................. 1 1.1 Introduction ............................................................................................................... 1 1.2 Scope of Services ....................................................................................................... I 2.0 SITE DESCRIPTION ............................................................................................................ I 3.0 FIELD INVESTIGATION AND LABO RA TORY TESTING ............................................... 2 3.1 Field Investigation ..................................................................................................... 2 3.2 Laboratory Testing ..................................................................................................... 2 4.0 GEOLOGY ........................................................................................................................... 3 4.1 General Setting .......................................................................................................... 3 4.2 Geologic Conditions .................................................................................................. 3 4.2.1 Quaternary Previously Placed Fill. ............................................................... 3 4.2.2 Tertiary Santiago Formation ....................................................................... .4 4.3 Groundwater Conditions ........................................................................................... .4 4.4 Geologic Hazards ..................................................................................................... .4 4.4.1 Surface Fault Rupture ................................................................................. .4 4.4.2 Local and Regional Faulting ........................................................................ 5 4.4.3 Liquefaction and Seismic Settlement Evaluation ......................................... 6 4.4.4 Tsunamis and Seiche Evaluation ................................................................. 7 4.4.5 Landsliding ................................................................................................. 7 4.4.6 Compressible and Expansive Soils .............................................................. 7 4.4.7 Corrosive Soils ............................................................................................ 8 5.0 CONCLUSIONS AND RECOMMENDATIONS ................................................................. 9 5.1 General ...................................................................................................................... 9 5.2 Site Preparation ......................................................................................................... 9 5.3 Site Excavation ........................................................................................................ 11 5.4 Fill Placement and Compaction ................................................................................ 11 5.5 Fill Materials ........................................................................................................... 11 5.6 Temporary Construction Slopes ............................................................................... 12 5.7 Foundation and Slab Recommendations ................................................................... 13 5.7.1 Foundations ............................................................................................... 13 5. 7.2 Foundation Settlement.. ............................................................................. 15 5.7.3 Foundation Setback ................................................................................... 15 5. 7.4 Interior Concrete Slabs .............................................................................. 15 5.8 Seismic Design Criteria ........................................................................................... 16 5.9 Lateral Resistance and Earth Pressures ..................................................................... 17 5.10 Exterior Flatwork ................................................................................................... 19 5.11 Drainage ................................................................................................................ 20 5.12 Slopes .................................................................................................................... 20 5.13 Controlled Low Strength Materials (CLSM) .......................................................... 21 5.14 Plan Review ........................................................................................................... 22 5.15 Construction Observation ....................................................................................... 22 6.0 LIMITATIONS OF INVESTIGATION .............................................................................. 23 FIGURES FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 APPENDICES APPENDIX A APPENDIX B APPENDIX C APPENDIX D SITE LOCATION MAP GEOLOGIC/EXPLORATION LOCATION MAP REGIONAL FAULT AND SEISMICITY MAP RETAINING WALL DRAINAGE DETAIL REFERENCES FIELD EXPLORATION METHODS AND BORING LOGS LABO RA TORY METHODS AND RESULTS STANDARD GRADING SPECIFICATIONS Preliminary Geotechnical Investigation Proposed Washington ADU Page 1 1738 Oriole Court, Carlsbad, California March I, 2021 CTE Job No. 1 O-l 5992G 1.0 INTRODUCTION AND SCOPE OF SERVICES 1.1 Introduction Construction Testing and Engineering, Inc. (CTE) has completed a geotechnical investigation and report providing conclusions and recommendations for the proposed ADU with associated flatwork, utilities, and other minor improvements. CTE has performed this work in general accordance with the terms of proposal G-5248-A dated January 28, 2021. Preliminary geotechnical recommendations for excavations, fill placement, and foundation design for the proposed improvements are presented herein. 1.2 Scope of Services The scope of services provided included: • Review of readily available geologic and soils reports. • Coordination of USA utility mark-out and location. • Excavation of exploratory borings and soil sampling utilizing limited-access manual excavation equipment. • Laboratory testing of selected soil samples. • Description of the site geology and evaluation of potential geologic hazards. • Engineering and geologic analysis. • Preparation of this preliminary geotechnical report. 2.0 SITE DESCRJPTION The subject site is located at 1738 Oriole Court in Carlsbad, California (Figure 1 ). The site is bounded by Oriole Court to the south, Poinsettia Lane to the north, and residences to the east and west. The site area is illustrated on Figure 1. The site is currently developed with a single-story residential structure with associated flatwork, utilities, and landscaping. Based on reconnaissance and review of general site topography, the proposed improvement area of the site is generally flat at S:\Projects\l 0-15000 to 10-15999 Projects\] 0-15992G (Washington ADU)\Rpt_Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March 1, 2021 Page 2 CTE Job No. 10-159920 an approximate elevation of256 feet above mean sea level (ms!). The proposed site improvements are depicted on Figure 2. 3.0 FIELD INVESTIGATION AND LABORATORY TESTING 3.1 Field Investigation CTE performed the subsurface investigation on February 17, 2021 to evaluate underlying soil conditions. This fieldwork consisted of site reconnaissance and the excavation of two exploratory soil borings. The borings were advanced to a maximum explored depth of approximately 3.5 feet below existing ground surface (bgs). The borings were excavated with a manually advanced auger due to limited access. Bulk samples were collected from the cuttings. Approximate locations of the exploratory soil borings and test holes are shown on the attached Figure 2. Soils were logged in the field by a CTE Engineering Geologist, and were visually classified in general accordance with the Unified Soil Classification System (USCS). The field descriptions have been modified, where appropriate, to reflect laboratory test results. Boring logs, including descriptions of the soils encountered, are included in Appendix B. 3.2 Laboratory Testing Laboratory tests were conducted on selected soil samples for classification purposes, and to evaluate physical properties and engineering characteristics. Laboratory tests included: Expansion Index and Chemical Characteristics. Test descriptions and laboratory test results are included in Appendix C. S:\frojects\l O-l 5000 to 10-15999 Projects\] 0-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 4.1 General Setting Page 3 CTE Job No. I 0-15992G 4.0 GEOLOGY The City of Carlsbad is located within the Peninsular Ranges physiographic province that is characterized by northwest-trending mountain ranges, intervening valleys, and predominantly northwest trending regional faults. The San Diego Region can be subdivided into the coastal plain area, central mountain-valley area and eastern mountain valley area. The project site is located within the coastal plain area that is characterized by a locally eroded basement surface consisting of Jurassic and Cretaceous crystalline rocks overlain by Tertiary and Quaternary sedimentary deposits. 4.2 Geologic Conditions Based on the regional geologic map prepared by Kennedy and Tan (2007), the near surface geologic unit underlying the site consists of Tertiary Santiago Formation. However, based on recent explorations at the site Quaternary Previously Placed Fill was observed overlying the Santiago Formation. Surficial geologic materials are depicted on Figure 2. 4.2.1 Quaternary Previously Placed Fill Where observed, the Previously Placed Fill generally consists of loose to medium dense, dark brown, silty to clayey fine to medium grained sand. Previously Placed Fill was observed to a depth of approximately 2.9 feet (bgs) in Boring B-2. Isolated areas with deeper fill may be encountered during b>rading and construction. S:\Projects\l 0-15000 to 10-15999 Projects\] 0-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March 1, 2021 4.2.2 Tertiary Santiago Formation Page 4 CTE Job No. 1 O-l 5992G Where observed, the underlying Santiago Formation generally consists of dense to very dense, light gray, silty fine grained sandstone. This unit is anticipated at depth throughout the site. 4.3 Groundwater Conditions A stabilized groundwater table was not encountered in either of the borings. While groundwater conditions may vary, especially following periods of sustained precipitation or irrigation, it is generally not anticipated to adversely affect completed improvements, if irrigation is limited and proper site drainage is designed, installed, and maintained per the recommendations of the project civil engineer. However, shallow seepage was encountered in the area of Boring B-1 that could potentially impact excavation and grading activities in localized site areas. 4.4 Geologic Hazards Geologic hazards that were considered to have potential impacts to site development were evaluated based on field observations, literature review, and laboratory test results. It appears that geologic hazards at the site are primarily limited to those caused by shaking from earthquake-generated ground motions. The following paragraphs discuss the geologic hazards considered and their potential risk to the site. 4.4.1 Surface Fault Rupture In accordance with the Alquist-Priolo Earthquake Fault Zoning Act, (ACT), the State of California established Earthquake Fault Zones around known active faults. The purpose of the ACT is to regulate the development of structures intended for human occupancy near S:\Projects\l 0-15000 to 10-15999 Projects\! 0-15992G (Washington ADU)\Rpt_Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 Page 5 CTE Job No. IO-l 5992G active fault traces m order to mitigate hazards associated with surface fault rupture. According to the California Geological Survey (Special Publication 42, Revised 2018), a fault that has had surface displacement within the last 11,700 years is defined as a Holocene- active fault and is either already zoned or is pending zonation in accordance with the ACT. There are several other definitions of fault activity that are used to regulate dams, power plants, and other critical facilities, and some agencies designate faults that are documented as older than Holocene (last 11,700 years) and younger than late Quaternary ( 1.6 million years) as potentially active faults that are subject to local jurisdictional regulations. Based on the site reconnaissance and review of referenced literature, the site is not located within a State-designated Earthquake Fault Zone, no known active fault traces underlie or project toward the site, and no known potentially active fault traces project toward the site. 4.4.2 Local and Regional Faulting The United States Geological Survey (USGS), with support of State Geological Surveys, and reviewed published work by various researchers, have developed a Quaternary Fault and Fold Database of faults and associated folds that are believed to be sources of earthquakes with magnitudes greater than 6.0 that have occurred during the Quaternary (the past 1.6 million years). The faults and folds within the database have been categorized into four Classes (Class A-D) based on the level of evidence confirming that a Quaternary fault is of tectonic origin and whether the structure is exposed for mapping or inferred from fault related deformational features. Class A faults have been mapped and categorized based on age of documented activity ranging from Historical faults (activity within last 150 years), Latest Quaternary faults (activity within last 15,000 years), Late Quaternary (activity within S:\Projects\l 0-15000 to 10-15999 Projects\! 0-J 5992G (Washington ADU)\Rpt_ Geotechntcal Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 202 I Page 6 CTE Job No. I 0-I 59920 last I 30,000 years), to Middle to late Quaternary (activity within last 1.6 million years). The Class A faults are considered to have the highest potential to generate earthquakes and/or surface rupture, and the earthquakes and surface rupture potential generally increases from oldest to youngest. The evidence for Quaternary deformation and/or tectonic activity progressively decreases for Class B and Class C faults. When geologic evidence indicates that a fault is not of tectonic origin it is considered to be a Class D structure. Such evidence includes joints, fractures, landslides, or erosional and fluvial scarps that resemble fault features, but demonstrate a non-tectonic origin. The nearest known Class A fault is the Newport Inglewood Fault Zone (<15,000 years), which is approximately 9.9 kilometers west of the site. The attached Figure 3 shows regional faults and seismicity with respect to the site. 4.4.3 Liquefaction and Seismic Settlement Evaluation Liquefaction occurs when saturated fine-grained sands or silts lose their physical strengths during earthquake-induced shaking and behave like a liquid. This is due to loss of point-to-point grain contact and transfer of normal stress to the pore water. Liquefaction potential varies with water level, soil type, material gradation, relative density, and probable intensity and duration of ground shaking. Seismic settlement can occur with or without liquefaction; it results from densification of loose soils. The proposed structural improvements at site are underlain at shallow depths by dense to very dense Tertiary Santiago Formation. Based on the noted subsurface conditions, the potential for liquefaction or significant seismic settlement at the site is considered to be low. S:\Projects\l 0-15000 to 10-15999 Projects\10-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 4.4.4 Tsunamis and Seiche Evaluation Page 7 CTE Job No. IO-I 5992G According to McCulloch ( 1985), the potential in the San Diego County coastal area for "I 00-year" and "500-year" tsunami waves is approximately five and eight feet, or less. This suggests that there is a low probability of a tsunami reaching the site based on elevation of the area. The site is not located in a zone of potential tsunami inundation based on emergency planning maps prepared by California Emergency Management Agency and CGS. In addition, oscillatory waves (seiches) are considered unlikely due to the absence of nearby confined bodies of water. 4.4.5 Landsliding According to mapping by Tan (1995), the site is located in Relative Landslide Susceptibility Area 3-1, which is described as "Generally Susceptible" to landsliding. Kennedy and Tan (2008) do not indicate the presence of mapped landslides at the subject site. In addition, field observations did not indicate the presence of deep gross instabilities. Based on the investigation findings, the potential for landslides at the subject site is considered to be low. 4.4.6 Compressible and Expansive Soils The near surface Previously Placed Fill is considered to be potentially compressible in its current condition. Therefore, it is recommended that these soils be overexcavated, where necessary, and properly compacted beneath proposed improvement areas as recommended herein and as determined to be necessary during construction. Based on the field data, site observations, and CTE's experience with similar soils in the vicinity of the site, dense underlying native materials are not considered to be subject to significant compressibility under the anticipated loads. S:Wrojects\l 0-15000 to I0-15999 ProJects\1 0-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March l, 202 I Page 8 CTE Job No. l 0-159920 Based on laboratory testing, soils at the site are anticipated to exhibit Low expansion potential (Expansion Index of 50 or less). However, expansive clays are known to exist in the area and may be encountered during site excavations and grading. Additional evaluation of near-surface soils should be performed based on field observations performed during grading and excavation activities. 4.4.7 Corrosive Soils Testing ofrepresentative site soils was performed to evaluate the potential corrosive effects on concrete foundations and buried metallic utilities. Soil environments detrimental to concrete generally have elevated levels of soluble sulfates and/or pH levels less than 5.5. According to the American Concrete Institute (AC!) Table 3 l 8 4.3. l, specific guidelines have been provided for concrete where concentrations of soluble sulfate (SO4) in soil exceed 0.10 percent by weight. These guidelines include low water:cement ratios, increased compressive strength, and specific cement type requirements. A minimum resistivity value less than approximately 5,000 ohm-cm and/or soluble chloride levels in excess of 200 ppm generally indicate a corrosive environment for buried metallic utilities and untreated conduits. Chemical test results indicate that near-surface soils at the site generally present a negligible corrosion potential for Portland cement concrete. Based on resistivity and chloride testing, regional soils have generally been interpreted to generally have a moderate corrosivity potential to buried metallic improvements. Based on these findings, it may be prudent to utilize plastic piping and conduits where buried and feasible. However, CTE does not practice corrosion engineering. Therefore, if corrosion of metallic or other improvements is S:\Projects\l 0-15000 to I 0-15999 Projects\) 0-15992G (Washington ADU)\Rpt_Geotechrncal Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU I 738 Oriole Court, Carlsbad, California March 1, 2021 Page 9 CTE Job No. 1 O-l 5992G of more significant concern, a qualified corrosion engineer could be consulted. Corrosivity of site improvements should be reevaluated following completion of site specific chemical testing. 5.0 CONCLUSIONS AND RECOMMENDATIONS 5.1 General CTE concludes that the proposed improvements on the site are feasible from a geotechnical standpoint, provided the preliminary recommendations in this report are incorporated into the design and construction of the project. Preliminary recommendations for the proposed earthwork and improvements are included in the following sections and Appendix D. However, recommendations in the text of this report supersede those presented in Appendix D should conflicts exist. These preliminary recommendations should either be confirmed as appropriate or updated following preparation of more precise project plans, and following required excavations, demolition of existing improvements, and observations during site preparation. 5.2 Site Preparation Prior to grading, areas to receive improvements should be cleared of existing debris and deleterious materials. Objectionable materials, such as construction or demolition debris and vegetation not suitable for structural backfill should be properly disposed of off-site. Based on site conditions and the presence of existing adjacent improvements, recommendations for foundations that extend to the depth of suitable forrnational material have been provided in order to help minimize overexcavation and grading in the limited improvement area. For slab support, site soils should be excavated to a minimum depth of 12 inches below subgrade in proposed slab on grade areas. However ifunsuitable S:\Projects\1 0-15000 to I 0-15999 Projects\! 0-l 5992G (Washington ADU)\Rpt_ Geotechntcal Oriole ADU doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 Page 10 CTE Job No. IO-I 5992G material is encountered below the recommended 12-inch overexcavation, additional excavation may be recommended. If excavations encroach upon property lines or adjacent structures the temporary excavation should generally be sloped at a I: I (horizontal to vertical) down to the prescribed overexcavation depth. Depending upon proximity, overexcavation in slots may be recommended by the geotechnical engineer. Recommendations for footings founded on properly overexcavated and recompacted fill can also be provided if appropriate, following completion of project design and determination of proposed site elevations. Overexcavations for proposed surface improvement areas, such as pavement or flatwork should be conducted to a minimum depth of one foot below proposed subgrade, or to the depth of suitable native material, whichever is shallower. If encountered, existing below-ground utilities should be redirected around proposed structures. Existing utilities at an elevation to extend through the proposed footings should generally be sleeved and caulked to minimize the potential for moisture migration below the building slabs. Abandoned pipes exposed by grading should be securely capped or filled with minimum two-sack cement/sand slurry to help prevent moisture from migrating beneath foundation and slab soils. A geotechnical representative from CTE should observe the exposed ground surface prior to placement of compacted fill or improvements, to verify the competency of exposed subgrade materials. If unsuitable material is observed at recommended excavation depths, additional excavation may be recommended during grading. After approval by this office, the exposed subgrades to receive fill should be scarified a minimum of eight inches, moisture conditioned, and S:\rrojects\10-15000 to 10-15999 Projects\] 0-159920 (Washington ADU)\Rpt_ Geotcchnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 properly compacted prior to fill placement. 5.3 Site Excavation Page 11 CTE Job No. IO-l 5992G Based on CTE's observations, shallow excavations at the site should generally be feasible using well-maintained heavy-duty construction equipment run by experienced operators. Excavation within the underlying Santiago Formation will become more difficult with depth. 5.4 Fill Placement and Compaction Following the recommended overexcavation and removal of loose or disturbed soils, areas to receive fills should be scarified approximately eight inches, moisture conditioned, and properly compacted. Fill and backfill should be compacted to a minimum relative compaction of 90 percent at above optimum moisture content (three percent above optimum for clayey soils), as evaluated by ASTM D 1557. The optimum lift thickness for fill soil depends on the type of compaction equipment used. Generally, backfill should be placed in uniform, horizontal lifts not exceeding eight inches in loose thickness. Fill placement and compaction should be conducted in conformance with local ordinances, and should be observed and tested by a CTE geotechnical representative. 5.5 Fill Materials Properly moisture conditioned, low expansion potential soils derived from the on-site materials are considered suitable for reuse on the site as compacted fill. If used, these materials should be screened of organics and materials generally greater than three inches in maximum dimension. S:\Projects\l 0-15000 to 10-15999 Projects\! 0-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 Page 12 CTE Job No. 10-15992G Irreducible materials greater than three inches in maximum dimension should not be used in shallow fills (within three feet of proposed grades). In utility trenches, adequate bedding should surround pipes. Imported fill beneath structures and flatwork should have an Expansion Index of20 or less (ASTM D 4829). Imported fill soils for use in structural or slope areas should be evaluated by the soils engineer being imported to the site. If proposed, retaining walls backfill located within a 45-degree wedge extending up from the bottom of the heel foundation of the wall should consist of soil having an Expansion Index of 20 or less (ASTM D 4829) with less than 30 percent passing the No. 200 sieve. The upper 12 to 18 inches of wall backfill should consist of lower permeability soils, in order to reduce surface water infiltration behind walls. The project structural engineer and/or architect should detail proper wall backdrains, including gravel drain zones, fills, filter fabric and perforated drain pipes. A conceptual wall drainage detail is provided in Figure 4. 5.6 Temporary Construction Slopes The following recommended slopes should be relatively stable against deep-seated failure, but may experience localized sloughing. On-site soils are considered Type B and Type C soils with recommended slope ratios as set forth in Table 5.6. S:\Projects\10-15000 to 10-l 5999 ProJects\l 0-J5992G (Washington ADU)\Rpt_ Gcotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I , 2021 Page 13 CTE Job No. IO-I 5992G . TA~LES.6 . . ..... •m::oM~llP TE~ORARYSLOPE RA'fJOS SOIL TYPE B (Tertiary Santiago Formation) C (Previously Placed Fill) SLOPE RATIO (Horizontal: vertical) 1:1 (OR FLATTER) 1.5:1 (OR FLATTER) MAXIMUM HEIGHT 5 Feet 5 Feet Actual field conditions and soil type designations must be verified by a "competent person" while excavations exist, according to Cal-OSHA regulations. In addition, the above sloping recommendations do not allow for surcharge loading at the top of slopes by vehicular traffic, equipment or materials. Appropriate surcharge setbacks must be maintained from the top of all unshored slopes. 5.7 Foundation and Slab Recommendations The following recommendations are for preliminary design purposes only. These foundation recommendations should be re-evaluated after review of the project grading and foundation/building plans, and after completion of rough grading of the building pad areas. Upon completion ofrough pad grading, Expansion Index of near surface soils should be verified, and these recommendations should be updated, if necessary. 5.7.1 Foundations Following the recommended preparatory pad area grading, continuous and isolated spread footings are anticipated to be suitable for use at this site. In lieu of overexcavation and recompaction beneath proposed foundations, recommendations have been provided for S:\Projects\1 0-15000 to I 0-15999 Projects\] 0-159920 (Washington ADU)\Rpt_Geotechnical Oriole ADU doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 202 I Page 14 CTE Job No. 10-159920 footings to be extended through the fill and into the underlying dense formational materials. It is anticipated that suitable dense native bearing material will be encountered at, or slightly below, the bottom of the fill at an approximate depth of33 inches, as observed in boring B-2. Therefore, localized areas of deeper unsuitable soils may be encountered that would require additional excavation for proposed footings. The additional foundation depth may be backfilled with a minimum three-sack cement/ sand slurry to the proposed bottom of foundation elevation (see section 5.14). Proposed foundation dimensions and reinforcement should be based on an allowable bearing value of 2,500 pounds per square foot for footings founded in competent formational materials and embedded a minimum of 24 inches below the lowest adjacent subgrade elevation or a minimum of six inches into dense formational material, whichever is greater. If deepened footings are proposed, the bearing value may be increased by 250 psffor each additional six inches of embedment up to a maximum static value of 3,000 psf. The above bearing values may also be increased by one third for short duration loading which includes the effects of wind or seismic forces. An uncorrected subgrade modulus of 150 pounds per cubic inch is considered suitable for elastic foundation design. Minimum footing reinforcement for continuous footings should consist of four No. 4 reinforcing bars; two placed near the top and two placed near the bottom or as per the project structural engineer. If applicable, the structural engineer should design isolated footing reinforcement. Footing excavations should be maintained at above optimum moisture S:\Projects\l 0-15000 to 10-15999 Projects\] 0-159920 (Washington ADU)\Rpt_Gcotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU I 738 Oriole Court, Carlsbad, California March 1, 2021 Page I 5 CTE Job No. I 0-I 59920 content until concrete placement. Foundation excavations that are allowed to desiccate may require presoaking just prior to concrete placement. 5.7.2 Foundation Settlement For structures founded in competent formational material, the maximum total static settlement is expected to be on the order of one inch and the maximum differential settlement is expected to be on the order of 0.5 inch over a distance of 50 feet. Due to the generally dense nature of underlying native materials, dynamic settlement is not expected to adversely affect the proposed improvements. 5. 7 .3 Foundation Setback Footings for structures founded entirely in native materials should be designed such that the horizontal distance from the face of adjacent descending slopes to the outer edge of the footing is a minimum of IO feet. In addition, foundations should bear beneath an imaginary 1: I plane extended up from the nearest bottom edge of adjacent parallel trenches or excavations located generally within 10 feet. Deepening of affected footings should be a suitable means of attaining the prescribed setbacks. 5. 7.4 Interior Concrete Slabs Lightly loaded interior concrete slabs for non-traffic areas should be a minimum of 4.5 inches thick, or slabs should be designed and detailed per recommendations of the project structural engineer. Minimum reinforcement for lightly loaded slabs should consist of#4 reinforcing bars placed on maximum 18-inch centers, each way, at or above mid-slab height, but with proper cover or as per the recommendations of the project structural engineer. Slabs subjected to heavier loads or traffic will require thicker slab sections and/or increased S:\Projects\l 0-15000 to 10-15999 Projects\] 0-159920 (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU I 738 Oriole Court, Carlsbad, California March I, 2021 reinforcement. Page 16 CTE Job No. I0-15992G In moisture-sensitive non-traffic floor areas, a suitable vapor retarder of at least 15-mil thickness (with all laps or penetrations sealed or taped) overlying a four-inch layer of consolidated aggregate base or gravel (with SE of 30 or more) should be installed. An optional maximum two-inch layer of similar material may be placed above the vapor retarder to help protect the membrane during steel and concrete placement. This recommended protection is generally considered typical in the industry. If proposed floor areas or coverings are considered especially sensitive to moisture emissions, additional recommendations from a specialty consultant could be obtained. CTE is not an expert at preventing moisture penetration through slabs. A qualified architect or other experienced professional should be contacted if moisture penetration is a more significant concern. A 130-pci subgrade modulus is considered suitable for elastic design of minimally embedded improvements such as slabs-on-grade. Subgrade materials should be maintained at a minimum of two percent above optimum moisture content until slab underlayment and concrete are placed. 5.8 Seismic Design Criteria The seismic ground motion values listed in the table below were derived in accordance with the ASCE 7-16 Standard that is incorporated into the 2019 California Building Code. This was accomplished by establishing the Site Class based on the soil properties at the site, and calculating site coefficients and parameters using the using the SEAOC-OSHPD U.S. Seismic Design Maps S"\Projects\1 0-15000 to I 0-15999 Projects\10-l 5992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 202 I Page 17 CTE Job No. I 0-159920 application. These values are intended for the design of structures to resist the effects of earthquake ground motions for the site coordinates 33.1081 ° latitude and-117.2735° longitude, as underlain by soils corresponding to site Class C. ,, TABLES.8 ,, ··• ,' , ___ , "'' ' ,,. ' ' , SEISMIC~OUNDMO't~ONYALUES(CODE-BASEti~t , , · · ,.. 20l9CBC\~DASCE 7-16 ·, · , "<,,, •.. , ::/·i\f~< . ' ' ' ' PARAMETER VALUE 2019 CBC/ASCE 7-16 REFERENCE Site Class C ASCE 16. Chapter 20 Mapped Spectral Response 0.999 Figure 1613.2.1 (I) Acceleration Parameter, Ss Mapped Spectral Response 0.363 Figure 1613.2.1 (2) Acceleration Parameter, S1 Seismic Coefficient, Fa 1.200 Table 1613.2.3 (1) Seismic Coefficient, F v 1.500 Table 1613.2.3 (2) MCE Spectral Response 1.199 Section 1613.2.3 Acceleration Parameter, SMs MCE Spectral Response 0.545 Section 1613.2.3 Acceleration Parameter, SM1 Design Spectral Response 0.799 Section 1613.2.5(1) Acceleration, Parameter Sos Design Spectral Response 0.363 Section 1613.2.5 (2) Acceleration, Parameter S01 Peak Ground Acceleration PGAM 0.525 ASCE 16. Section 11.8.3 5.9 Lateral Resistance and Earth Pressures Lateral loads acting against structures may be resisted by friction between the footings and the supporting soil or passive pressure acting against structures. If frictional resistance is used, allowable coefficients of friction of0.30 (total frictional resistance equals the coefficient of friction multiplied by the dead load) for concrete cast directly against compacted fill or native material is recommended. A design passive resistance value of 250 pounds per square foot per foot of depth (with a maximum value of 2,000 pounds per square foot) may be used. The allowable lateral resistance can be taken as the sum of the frictional resistance and the passive resistance, provided the S:\Projects\l 0-15000 to 10-15999 Projects\] 0-l 5992G (Washington ADU)\Rpt_Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March 1, 2021 Page 18 CTE Job No. l 0-15992G passive resistance does not exceed two-thirds of the total allowable resistance. Proposed retaining walls backfilled using select granular soils may be designed using the equivalent fluid unit weights given in table below. WALL TYPE CANTILEVER WALL (YIELDING) RESTRAINED WALL LEVEL BACKFILL 45 55 SLOPE BACKFILL 2:1 (HORIZONTAL: VERTICAL 55 65 Lateral pressures on cantilever retaining walls (yielding walls) over six feet high due to earthquake motions may be calculated based on work by Seed and Whitman ( 1970). The total lateral earth pressure against a properly drained and backfilled cantilever retaining wall above the groundwater level can be expressed as: PAE= PA+ ti.PAE For non-yielding (or "restrained") walls, the total lateral earth pressure may be similarly calculated based on work by Wood (1973): Where P Alb = Static Active Earth Pressure = GhH2/2 PKlb = Static Restrained Wall Earth Pressure= GhH2/2 ti.PAFlb = Dynamic Active Earth Pressure Increment= (3/8) kh yH 2 i'i.PKE/b = Dynamic Restrained Earth Pressure Increment= kh yH2 b = unit length of wall (usually l foot) kh = 1/2* PGAm (PGAm given previously Table 5.8) S:\Projects\l 0-15000 to 10-15999 Projects\] 0-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March 1, 2021 Gh = Equivalent Fluid Unit Weight (given previously Table 5.9) H = Total Height of the retained soil y = Total Unit Weight of Soil"" 135 pounds per cubic foot Page 19 CTE Job No. 1 0-l 5992G *It is anticipated that the 1 /2 reduction factor will be appropriate for proposed walls that are not substantially sensitive to movement during the design seismic event. Proposed walls that are more sensitive to such movement could utilize a2/3 reduction factor. If any proposed walls require minimal to no movement during the design seismic event, no reduction factor to the peak ground acceleration should be used. The project structural engineer of record should detennine the appropriate reduction factor to use ( if any) based on the specific proposed wall characteristics. The static and increment of dynamic earth pressure in both cases may be applied with a line ofaction located at H/3 above the bottom of the wall (SEAOC, 2013). These values assume non-expansive backfill and free-draining conditions. Measures should be taken to prevent moisture buildup behind all retaining walls. Drainage measures should include free- draining backfill materials and sloped, perforated drains. These drains should discharge to an appropriate off-site location. Waterproofing and drains for waterproofing may be necessary due to the descending slope to the north and anticipated irrigation runoff and accumulation. It is recommended that drains be constructed low enough so that water cannot rise above the top of interior building slab or finish floor elevation, and preferably well below the bottom of slab elevations. Waterproofing should be as specified and detained by the project architect or other specialty consultant. 5.10 Exterior Flatwork Flatwork should be installed with crack-control joints at appropriate spacing as designed by the project architect to reduce the potential for cracking in exterior flatwork caused by minor movement S:\ProJects\l 0-15000 to I 0-15999 Pro.1ects\l 0-159920 (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 Page 20 CTE Job No. I 0-l 5992G of subgrade soils and concrete shrinkage. Additionally, it is recommended that flatwork be installed with at least number 4 reinforcing bars at 18-inch centers, each way, at or above mid-height of slab, but with proper concrete cover, or with other reinforcement per the applicable project designer. Flatwork that should be installed with crack control joints, includes driveways, sidewalks, and architectural features. All subgrades should be prepared according to the earthwork recommendations previously given before placing concrete. Positive drainage should be established and maintained next to all flatwork. Subgrade materials should be maintained at a minimum of two percent above optimum moisture content until the time of concrete placement. 5 .11 Drainage Surface runoff should be collected and directed away from improvements by means of appropriate erosion-reducing devices and positive drainage should be established around the proposed improvements. Positive drainage should be directed away from improvements at a gradient of at least two percent for a distance of at least five feet. However, the project civil engineers should evaluate the on-site drainage and make necessary provisions to keep surface water from affecting the site. Generally, CTE recommends against allowing water to infiltrate building pads or adjacent to slopes. CTE understands that some agencies are encouraging the use of storm-water cleansing devices. Use of such devices tends to increase the possibility of adverse effects associated with high groundwater. 5.12 Slopes Based on anticipated soil strength characteristics minor slopes, if proposed, slopes should be S:\Projects\1 0-15000 to 10-15999 Projects\] 0-15992G (Washington ADU)\Rpt~ Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU I 738 Oriole Court, Carlsbad, California March I, 202 I Page 21 CTE Job No. I 0-159920 constructed at ratios of2:1 (horizontal: vertical) or flatter. These slope inclinations should exhibit factors of safety greater than 1.5. Although properly constructed slopes on this site should be grossly stable, the soils will be somewhat erodible. Therefore, runoff water should not be permitted to drain over the edges of slopes unless that water is confined to properly designed and constructed drainage facilities. Erosion-resistant vegetation should be maintained on the face of all slopes. Typically, soils along the top portion ofa fill slope face will creep laterally. CTE recommends against building distress- sensitive hardscape improvements within five feet of slope crests. 5.13 Controlled Low Strength Materials (CLSM) Controlled Low Strength Materials (CLSM) may be used in deepened footing excavation areas, building pads, and/or adjacent to retaining walls or other structures, provided the appropriate following recommendations are also incorporated. Minimum overexcavation depths recommended herein beneath slabs, flatwork, and other areas may be applicable beneath CLSM if/where CLSM is to be used, and excavation bottoms should be observed by CTE prior to placement ofCLSM. Prior to CLSM placement, the excavation should be free of debris, loose soil materials, and water. Once specific areas to utilize CLSM have been determined, CTE should review the locations to determine if additional recommendations are appropriate. CLSM should consist of a minimum three-sack cement/sand slurry with a minimum 28-day compressive strength of I 00 psi ( or equal to or greater than the maximum allowable short term soil bearing pressure provided herein, whichever is higher) as determined by ASTM D4832. If re- S:\Projects\l 0-15000 to 10-15999 Projects\] 0-15992G (Washington ADU)\Rpt_ Geotechnical Oriole ADU.doc Preliminary Geotechnical lnvestigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I , 202 I Page 22 CTE Job No. 10-15992G excavation is anticipated, the compressive strength of CLSM should generally be limited to a maximum of l 50 psi per AC! 229R-99. Where re-excavation is required, two-sack cement/sand slurry may be used to help limit the compressive strength. The allowable soils bearing pressure and coefficient of friction provided herein should still govern foundation design. CLSM may not be used in lieu of structural concrete where required by the structural engineer. 5.14 Plan Review CTE should be authorized to review the project grading and foundation/building plans prior to commencement of earthwork in order to provide additional evaluation and recommendations, as is anticipated to be necessary; especially for the proposed improvements at the northern limits of the site. 5.15 Construction Observation The recommendations provided in this report are based on preliminary design information for the proposed construction and the subsurface conditions observed in the soil borings. The interpolated subsurface conditions should be confirmed by CTE once more precise project plans are available and during construction with respect to anticipated conditions. Upon completion of precise grading, if necessary, soil samples will be collected to evaluate as-built Expansion Index. Foundation recommendations may be revised upon completion of grading, and as-built laboratory tests results. Additionally, soil samples should be taken in pavement subgrade areas upon rough grading to refine pavement recommendations as necessary. SWrojects\l 0-1 5000 to 10-15999 Projects\\ 0-159920 (Washington ADU)\Rpt_Geotechnical Oriole ADU.doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March I, 2021 Page 23 CTE Job No. 10-159920 Recommendations provided in this report are based on the understanding and assumption that CTE will provide the observation and testing services for the project. All earthwork should be observed and tested in accordance with recommendations contained within this report. CTE should evaluate footing excavations before reinforcing steel placement. 6.0 LIMITATIONS OF INVESTIGATION The field evaluation, laboratory testing and geotechnical analysis presented in this report have been conducted according to current engineering practice and the standard of care exercised by reputable geotechnical consultants performing similar tasks in this area. No other warranty, expressed or implied, is made regarding the conclusions, recommendations and opinions expressed in this report. Variations may exist and conditions not observed or described in this report may be encountered during construction. This report is prepared for the project as described. It is not prepared for any other property or party. The recommendations provided herein have been developed in order to reduce the post-construction movement of site improvements related to soil expansion and settlement. However, even with the design and construction recommendations presented herein, some post-construction movement and associated distress may occur.The findings of this report are valid as of the present date. However, changes in the conditions of a property can occur with the passage of time, whether they are due to natural processes or the works of man on this or adjacent properties. In addition, changes in applicable or appropriate standards may occur, whether they result from legislation or the broadening of knowledge. Accordingly, the findings of this report may be invalidated wholly or S:\Projects\l 0-15000 to I 0-15999 ProJccts\1 0-159920 (Washington ADU)\Rpt_ Geotcchnical Oriole ADU .doc Preliminary Geotechnical Investigation Proposed Washington ADU 1738 Oriole Court, Carlsbad, California March 1, 202 I Page 24 CTE Job No. IO-l 5992G partially by changes outside CTE' s involvement. Therefore, this report is subject to review and should not be relied upon after a period of three years. CTE's conclusions and recommendations are based on an analysis of the observed conditions. If conditions different from those described in this report are encountered, CTE should be notified and additional recommendations, if required, will be provided subject to CTE remaining as authorized geotechnical consultant ofrecord. This report is for use of the project as described. It should not be utilized for any other project. CTE appreciates this opportunity to be of service on this project. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Respectfully submitted, CONSTRUCTION TESTING & ENGINEERING, INC. Dan T. Math, GE #2665 Principal Geotechnical Engineer Aaron J. Beeby, CEG #2603 Project Geologist AJB/ DTM/JFL Jay F. Lynch, CEG #1890 Principal Engineering Geologist S:\Projects\l 0-1 5000 to 10-15999 Projects\! 0-J 5992G (Washington ADU)\Rpt_Geotechnical Oriole ADU.doc ti bad Qty library _ Plaza Lac ~aseo L Roast R .. ,., CJ~ Construction Testing & Engineering, Inc. ~c 1-441 Montiel Rd Ste 115, Escondido, CA 92026 Ph {760) 746-4955 SITE INDEX MAP PROPOSED WASHINGTON ADU 17S8 ORIOLE COURT CARLSBAD, CALIFORNIA SCALE: DATE: AS SHOWN 2/21 CTE JOB NO.: FIGURE: 10-151192G 1 c,, 3' "O N Q) ... ::, c,, 5-,,...._ ::> Cl <{ C 0 ...., c,, .£ ..c II) ~ .....,. c., N Ol Ol LO I 0 / II) u Q) ·o ... CL Ol Ol Ol LO ~ I 0 0 ...., 0 0 0 LO I 0 :;;, B-2 ~ II) ...., ~ Tsa ·o $ ,------ 1 I B-1 ~ DW Tsa ....,_--r----------, "' :.. LEGEND APPROXIMATE BORING LbCATION TERTIARY SANTIAGO FORMATION "' L------- C ~ Construction Testing & Engineering, Inc. I ~c 1441 Montiel ~d SIB 115, Escondido, CA 92026 Ph (760) 746-4955 ON u&n SCALE· DATE: GSOLOGIC/IIPLORATION LOCJ.'ft _... 1·~10' 2/21 PROPOSED WASHINGTON ADU 1738 ORIOi.i COURT CTE JOB NO.: FIGURE: en CARISBAD, CAID'ORNJA 10-151lll2G 2 L_ ______ ___J_ ______ .....__ __ _ ! 'Z' , ~ ~ .§ m c,■·- 1=. n ~ , ~ s-5! I li ! al m ill ' 0 ~ } m m ill ' ~ .s f " ;j; NOTES: FAULT ACTIVITY MAP OF CALIFORNIA, 2010, CALIFORNIA GEOLOGIC DATA MAP SERIES MAP NO. 6; i EPICENTERS OF AND AREAS DAllAGED BY 112 5 CALIFORNIA EARTHQUAKES, 1800-1999 ADAPTED j_ AFTER TOPPOZADA, BRANUM, PETERSEN, JIALISfORM:, CRAMER, AND REICBLE, 2000, l CDIIG MAP SHEET 49 ~ REFERENCE FOR ADDITIONAL _EXPLANATION; IIODIFIED 111TB CISN AND USGS SEISIIIC MAPS ······· -~· M 12 0 6 12 LEGEND ~~ .._ M I I j 1 inch = 12 mi. HISTORIC FAULT DISPLACEMENT (LAST 200 YEARS) HOLOCENE FAULT DISPLACEMENT (DURING PAST 11,700 YEARS) LATE QUATERNARY FAULT DISPLACMENT (DURING PAST 700,000 YEARS) QUATERNARY FAULT DISPLACEMENT (AGE UNDIFFERENTIATED) PREQUATERNARY FAULT DISPLACEMENT (OLDER THAN 1.6 MILLION YEARS) E 1800- 1868 C:: 7.0 • 6.5-6.9 • 5.5-5.9 • 5.0-5.4 • 1869- 1931 • • 1932- 2010 • • LAST TWO DIGITS OF M > 6.5 EARTHQUAKE YEAR -,-~·~ XI I -C . ' :I ..• ~»·" \. . 4'#! , ""!',?-,:'\.~-,.\fl-'" ts.•·· w .. <<·-_ ., • '• :,· c,f'_·•t., ~I '1:._•~;~-~~I " ·~ .'t1*"+ ,,_!'! --/~::.1:·,.' > ~;~ ····• .. ,,-,,t "' I -.'-!:t • ~ •• I l Ci~ Construction Testing & Engineering, Inc. ~ 1441 Monllal Rd SIB 115, Escondido, CA 92026 Ph (760) 746-4955 REGIONAL FAULT AND SEISMICITY MAP 1 --------1 PROPOSED WASHINGTON ADU ™ 1738 ORIOLE COURT CARLSBAD, CALIFORNIA 3 i, RETAlNlNG WAL > FINISH GRADE --r-r-~..-r-r.-....,...,..~...,...-.~ A 12" TO 18" OF LOWER PERMEABILITY NA TNE MATERIAL COMPACTED TO 90% RELA TNE COMPACTION • ti O v · . .-•,\:;• . .-·;• .. :;-_,,\·.::.'.·'-:~tfiif:'f:/j,j/Kiififiilii:Yil/K(/ V ' o • ~ .. \/i:ffi~:·<·:~•::fJt}/~:::_-::.~·.•:¼~i:·/· ( t V , .... , .... ,.:.,.:.,_-•: •• :_-,.::.~;."•~•: ... .-•..• ,fo/~f , .. _. ••• ••• .~ · <; r; ti0r0lf 11~111i1~11; ACTION .. ,.-.... .-.. .-.-.. ,.-.. ,.'.JAft•.~{{i\~~~S·~~ ED Q O ............................................................................. . 0 t:, · . .-.,:,· .. ·:•:..-....... ·:,:ztv-:.:t-t ':f.f;~:-t· ·g~ie .... ·. 1 AFT .. .., . .-,.-:,., .. _.:,.-:,,:, .. \\l-~·!~~n-'.Q FfNG TO BE ,. O • ................... ; ........... t. •'I. •• '· •• '/'::-.: •• ,(> tJ ........ , .................. ; .. ,\.-·.'&NteW:ml)·.--y ARCHITECT : ~ : Y!)f::~tl{)tli~~}::Jl?t . , ~ \ ~{f {ft.%.¼{ f 1( {f~d~~ii~6~~ !~~:vc 11 ~ O /l·/!}::•:~·:~:/•f~/Y •QU]VALENT). MINfMUM ~> ~ > " • .. ~ .•. .-.. • .. ,·_:.;:.,.:.:_-·.:·>;:·;:-:·:.-: ;;:," 1 % GRADIENT TO SUIT ABLE ~.o d ,a J~ o~,.:;·/ OUTLET <t>~ ~" .. ~v "• <I WALL FOOTING I::,, -~--• p t>o .0 ·o -11 ti ~ Cl~ Construction Testing & Engineering, Inc. ~'C 1441 Montiel Rd Ste 115, e.tcndldo, CA ll2026 Ph (760) 748-4956 (TL )Oil, '(I: I0-15992G RETAINING WALL DRAINAGE DETAIL s A No SCALE DAT! r <,l :: 2/21 4 APPENDIX A REFERENCES REFERENCES I. American Society for Civil Engineers, 2019, "Minimum Design Loads for Buildings and Other Structures," ASCE/SEI 7-16. 2. ASTM, 2002, "Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort," Volume 04.08 3. California Building Code, 2019, "California Code of Regulations, Title 24, Part 2, Volume 2 of 2," California Building Standards Commission, published by ICBO, June. 4. California Division of Mines and Geology, CD 2000-003 "Digital Images of Official Maps of Alquist-Priolo Earthquake Fault Zones of California, Southern Region," compiled by Martin and Ross. 5. California Emergency Management Agency/California Geological Survey, 'Tsunami Inundation Maps for Emergency Planning." 6. Hart, Earl W., Revised 1994, Revised 2018, "Fault-Rupture Hazard Zones in California, Alquist Priolo, Special Studies Zones Act of 1972," California Division of Mines and Geology, Special Publication 42. 7. Jennings, Charles W., 1994. "Fault Activity Map of California and Adjacent Areas" with Locations and Ages of Recent Volcanic Eruptions. 8. Kennedy, M.P. and Tan, S.S., 2007, "Geologic Map of the Oceanside 30' x 60' Quadrangle, California", California Geological Survey, Map No. 2. 9. McCulloch, D.S., 1985, "Evaluating Tsunami Potential" in Ziony, J.I., ed., Evaluating Earthquake Hazards in the Los Angeles Region -An Earth-Science Perspective, U.S. Geological Survey Professional Paper 1360. IO. Reichle, M., Bodin, P., and Brune, J., 1985, The June 1985 San Diego Bay Earthquake swarm [abs.]: EOS, v. 66, no. 46, p.952. 11. Seed, H.B., and R.V. Whitman, 1970, "Design of Earth Retaining Structures for Dynamic Loads," in Proceedings, ASCE Specialty Conference on Lateral Stresses in the Ground and Design of Earth-Retaining Structures, pp. 103-147, Ithaca, New York: Cornell University. 12. Tan, S. S., and Giffen, D. G., 1995, "Landslide Hazards in the Northern Part of the San Diego Metropolitan Area, San Diego County, California: Encinitas Quadrangle, Landslide Hazard Identification Map No. 35", California Department of Conservation, Division of Mines and Geology, Open-File Report 95-04, State of California, Division of Mines and Geology. 13. Wood, J.H. 1973, Earthquake-Induced Soil Pressures on Structures, Report EERL 73-05. Pasadena: California Institute of Technology. APPENDIXB EXPLORATION LOGS ~ Construction Testing & Engineering, Inc. Cl~c: 1441 Montiel Rd Ste 115, Escondido, CA 92026 Ph (760) 746-4955 DEFINITION OF TERMS PRIMARY DIVISIONS SYMBOLS SECONDARY DIVISIONS GRAVELS CLEAN ~<"'< GW; ,2 WELL GRADED GRAVELS, GRAVEL-SAND MIXTIJRES -81 ---UTILE OR NO FINES MORE THAN GRAVELS •• ,. • POORLY GRADED GRAVELS OR GRAVEL SAND MIXTIJRES, z HALF OF < 5% FINES ~..; GP ~ ~ (/) <( LITTLE OF NO FINES ..Ju.I COARSE Oo r--UJ FRACTION IS GRAVELS m SILTY GRAVELS, GRAVEL-SAND-SILT MIXTURES, (/)u_Cl'.'.~ NON-PLASTIC FlNES C _J W (I) LARGER THAN WITH FINES , · w<CGw N0.4 SIEVE . GC ~: CLAYEY GRAVELS, GRAVEL-SAND-CLAY MIXTURES, zIO::'.> ~z'.)~ PLASTIC FINES <( Cf)Cf) :-----· --:-·--.-c WELL GRADED SANDS, GRA YELL Y SANDS, UTILE OR NO c,:C-o SANDS CLEAN . .!:.··SW,.!:.·· >-,.,o MDRE THAN SANDS -----------C: FINES W UJ <(N Ula::-. HALF OF < 5% FINES SP POORLY GRADED SANDS, GRAVELLY SANDS, LllTLE OR o:::ao:::o NO FINES c( ~ ~ z COARSE TsMT 0 <( FRACTION IS SlLTY SANDS, SAND-SILT MIXTURES, NON-PLASTIC FINES u :, SMALLER THAN SANDS NO. 4 SIEVE WITH FINES ,r 1/ SC '?f, CLAYEY SANDS, SAND-CLAY MIXTURES, PLASTIC FINES ,,: ~H INORGANJC SILTS, VERY FINE SANDS, ROCK FLOUR, SILlY LU ML (I) LL er::: ,b! SILTS AND CLAYS OR CLAYEY FINE SANDS, SLIGHTLY PLASTJC CLAYEY SILTS ::::!0~00 LIQUID LIMIT IS '/ CL ' ,,. INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, QlL...IW GRAVELLY SANDY SILTS OR LEAN CLAYS (l)..J<C> LESS THAN 50 .,,, O<::l:~W OL i ORGANIC SILTS AND ORGANIC CLAYS OF LOW PLASTICITY l1J I 00 cij Z Z Cl) O ~<::l::::iD ~ INORGANIC SILTS, MICACEOUS OR DIA TOMACEOUS FINE ~<(~ MH C>w 620 SIL TS AND CLAYS SANDY OR SIL TY SOILS. ELASTIC SIL TS wcr:::WZ LIQUID LIMIT IS %_CH~ INORGANIC CLAYS OF HJGH PLASTICITY, FAT CLAYS z Of-z -~Cl:<( GREATER THAN 50 U. :,I m ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, >-ORGANIC SIL TY CLAYS HIGHLY ORGANIC SOILS PEAT AND OTHER HIGHLY ORGANIC SOILS T GRAIN SIZES BOULDERS COBBLES GRAVEL SAND I SIL TS AND CLAYS COARSE FINE COARSE I MEDIUM I FINE I ]2n 3" 3/4" 4 10 40 200 CLEAR SQUARE SIEVE OPENING U.S. STANDARD SIEVE SIZE ADDITIONAL TESTS (OTHER THAN TEST PIT AND BORING LOG COLUMN HEADINGS) MAX-Maximum Dry Density PM-Permeability PP-Pocket Penetrometer GS-Grain Size Distribution SG-Specific Gravity WA-Wash Analysis SE-Sand Equivalent HA-Hydrometer Analysis DS-Direct Shear El-Expansion Index AL-Atterberg Limits UC-Unconfined Compression CHM-Sulfate and Chloride RV-R-Value MD-Moisture/Density Content , pH. Resistivity CN-Consolidation M-Moisture COR -Corrosivity CP-Collapse Potential SC-Swell Compression SD-Sample Disturbed HC-Hydrocollapse 01-Organic Impurities REM-Remolded FJGURE:I BLI I PROJECT CTEJOB NO LOGGED BY " 15. " ~ E C. " >. 0 " ~ f--0 ::: '" -" 0 ~ ~ " 15. > " ] is 0 Cl iii G u 8 ;,, ~ u Cl c· Cl ~o ~~ ~ --~ -X ~ -- ~s- ~ - ~ - ~ --- -~ 10 - --I --- --I - -- -15- -- -- -- -- 20- -- -- -- -- 5- -- ;, ~ ~ 0 ;E a ,D E >, ~ ~ u ~ :0 Construction Testing & Engineering, Inc. 1441 Montiel Rd Ste 115. Escondido, CA 92026 Ph (760) 746-4955 "' 0 _, ii C. 0 DRJLLER DRILL METHOD SAMPLE METHOD BORING LEGEND DESCRIPTION Block or Chunk Sample Bulk Sample Standard Penetration Test Modified Split-Barrel Drive Sampler (Cal Sampler) Thin Walled Army Corp. of Engineers Sample Groundwater Table \ . -------------------------------------------- ,_ -Soil Type or Classification Change SHEET of DRILLING DA TE ELEVATION· Laboratory Tests -?---?--?--?--?---?--?- \_ F.onnation ~hange HA~proximat~ boundari~s queried ;?)l "SM" Quotes are placed around classifications where the soils exist in situ as bedrock FIGURE: I BL2 PROJECT PROPOSED WASHINGTON ADU DRlLLER AJB SHEET I of I ' CTEJOB NO IO-l 5992G DRILL METHOD HAND AUGER DRILLING DA rE 2117/2021 LOGGED BY AJB SAMPLE METHOD RING, SPT and BULK ELEVATION: -255 FEET V C 0 V 0. V c ~ E 0. i'.• t E "" BORING: B-1 " • ~ ~ 0 Laboratory Tests V ~ f---~ ~ .., !:;. <, ~ ~ V ~ 0 -;; V 0 -" lS. ~ " • Cl t; u 0. 3 > 0 ~-0 ~ Is " 8 Cl "' iii Cl ;;: :, DESCRIPTION 0 SC QUATERNARY PREVIOUSLY PLACED FILL: -Loose to medium dense, moist, gray, clayey fine grained SAND. -------------------------------------------------------------... -CL Stiff, slightly moist, olive, fine grained sandy CLAY. EI ... -"SM" TERTIARY SANTIAGO FORMATION: Dense to very dense, slightly moist, light gray, fine grained ... -siJ~-SANDSTONE. >-5-Total Depth: 3.4' Minor seepage encountered at approximately 2 feet ... - ... - ... - - !Ir ... - ... - ... - ... - '-] s- ... - ... - - . >-le ... - ... - ... - ... - >-25- I B-1 • ''{OJECT PROPOSED WASHJNGTON ADU DRILLER AJB SHEET I of I i'E JOB NO: I0-15992G DRILL METHOD HAND AUGER DRILLJNG DA TE 2/17/2021 LOGGED BY A.JS SAMPLE METHOD RJNG, SPT and BULK ELEVATION -255 FEET • ':; 0 0. • c "' E 0-:,' E "" BORING: B-2 " • ,. "' ~ q Laboratory Tests • ~ f-§ ~ -!::, ~ ~ ~ u " -;,; " 0 E E. • ~ Cl t; u ~ > 0 ~ C. • -a ti 0 t· e Cl Ol iii Cl :E ::0 l'.) DESCRJPTION 0 SC QUATERNARY PREVIOUSLY PLACED FILL: -Loose to medium dense, moist, gray, clayey fine grained SAND. CHM - --"SM" TERTIARY SANTIAGO FORMATION: --"-Dense to very dense, slightly moist, light gray, fine grained siltv SANDSTONE. -5-Total Depth: 3.5' No Groundwater Encountered -- -- - -- 1 i,- -- -- -- f-- -1 s----- - -- -2tt- -- ---~ -- -25- I B-2 APPENDIXC LABORATORY METHODS AND RESULTS LABORATORY METHODS AND RESULTS Laboratory Testing Program Laboratory tests were performed on representative soil samples to detect their relative engineering properties. Tests were performed following test methods of the American Society for Testing Materials or other accepted standards. The following presents a brief description of the various test methods used. Classification Soils were classified visually according to the Unified Soil Classification System. Visual classifications were supplemented by laboratory testing of selected samples according to ASTM D2487. The soil classifications are shown on the Exploration Logs in Appendix B. Expansion Index Expansion testing was performed on selected samples of the matrix of the on-site soils according to ASTMD4829. Chemical Analysis Soil materials were collected with sterile sampling equipment and tested for Sulfate and Chloride content, pH, Corrosivity, and Resistivity. LOCATION 8-1 LOCATION 8-2 LOCATION 8-2 LOCATION 8-2 LOCATION 8-2 CT~ Construction Testing & Engineering, Inc. ~c 1441 Montiel Rd Ste 115, Escondido, CA 92026 Ph (760) 746-4955 EXPANSION INDEX TEST ASTM D 4829 DEPIB EXPANSION INDEX EXPANSION (feet) POTENTIAL 0-3.4 17 VERY LOW SULFATE DEPIB RESULTS (feet) ppm 0-3.5 95.04 CHLORIDE DEPIB RESULTS (feet) ppm 0-3.5 18.9 p.H. DEPIB RESULTS (feet) 0-3.5 5.82 RESISTIVITY CALIFORNIA TEST 424 DEPIB RESULTS (feet) ohms-cm 0-3.5 9270 LABORATORY SUMMARY CTE JOB NO. I0-15922G APPENDIXD ST AND ARD SPECIFICATIONS FOR GRADING Appendix D Page D-1 Standard Specifications for Grading Section 1 -General Construction Testing & Engineering, Inc. presents the following standard recommendations for grading and other associated operations on construction projects. These guidelines should be considered a portion of the project specifications. Recommendations contained in the body of the previously presented soils report shall supersede the recommendations and or requirements as specified herein. The project geotechnical consultant shall interpret disputes arising out of interpretation of the recommendations contained in the soils report or specifications contained herein. Section 2 -Responsibilities of Project Personnel The geotechnical consultant should provide observation and testing services sufficient to general conformance with project specifications and standard grading practices. The geotechnical consultant should report any deviations to the client or his authorized representative. The Client should be chiefly responsible for all aspects of the project. He or his authorized representative has the responsibility of reviewing the findings and recommendations of the geotechnical consultant. He shall authorize or cause to have authorized the Contractor and/or other consultants to perform work and/or provide services. During grading the Client or his authorized representative should remain on-site or should remain reasonably accessible to all concerned parties in order to make decisions necessary to maintain the flow of the project. The Contractor is responsible for the safety of the project and satisfactory completion of all grading and other associated operations on construction projects, including, but not limited to, earth work in accordance with the project plans, specifications and controlling agency requirements. Section 3 -Preconstruction Meeting A preconstruction site meeting should be arranged by the owner and/or client and should include the grading contractor, design engineer, geotechnical consultant, owner's representative and representatives of the appropriate governing authorities. Section 4 -Site Preparation The client or contractor should obtain the required approvals from the controlling authorities for the project prior, during and/or after demolition, site preparation and removals, etc. The appropriate approvals should be obtained prior to proceeding with grading operations. STANDARD SPECIFICATIONS OF GRADING Page 1 of 26 Appendix D Page D-2 Standard Specifications for Grading Clearing and grubbing should consist of the removal of vegetation such as brush, grass, woods, stumps, trees, root of trees and otherwise deleterious natural materials from the areas to be graded. Clearing and grubbing should extend to the outside of all proposed excavation and fill areas. Demolition should include removal of buildings, structures, foundations, reservoirs, utilities (including underground pipelines, septic tanks, leach fields, seepage pits, cisterns, mining shafts, tunnels, etc.) and other man-made surface and subsurface improvements from the areas to be graded. Demolition of utilities should include proper capping and/or rerouting pipelines at the project perimeter and cutoff and capping of wells in accordance with the requirements of the governing authorities and the recommendations of the geotechnical consultant at the time of demolition. Trees, plants or man-made improvements not planned to be removed or demolished should be protected by the contractor from damage or injury. Debris generated during clearing, grubbing and/or demolition operations should be wasted from areas to be graded and disposed off-site. Clearing, grubbing and demolition operations should be performed under the observation of the geotechnical consultant. Section 5 -Site Protection Protection of the site during the period of grading should be the responsibility of the contractor. Unless other provisions are made in writing and agreed upon among the concerned parties, completion of a portion of the project should not be considered to preclude that portion or adjacent areas from the requirements for site protection until such time as the entire project is complete as identified by the geotechnical consultant, the client and the regulating agencies. Precautions should be taken during the performance of site clearing, excavations and grading to protect the work site from flooding, ponding or inundation by poor or improper surface drainage. Temporary provisions should be made during the rainy season to adequately direct surface drainage away from and off the work site. Where low areas cannot be avoided, pumps should be kept on hand to continually remove water during periods of rainfall. Rain related damage should be considered to include, but may not be limited to, erosion, silting, saturation, swelling, structural distress and other adverse conditions as determined by the geotechnical consultant. Soil adversely affected should be classified as unsuitable materials and should be subject to overexcavation and replacement with compacted fill or other remedial grading as recommended by the geotechnical consultant. STANDARD SPECIFICATIONS OF GRADING Page 2 of 26 Appendix D Page D-3 Standard Specifications for Grading The contractor should be responsible for the stability of all temporary excavations. Recommendations by the geotechnical consultant pertaining to temporary excavations ( e.g., backcuts) arc made in consideration of stability of the completed project and, therefore, should not be considered to preclude the responsibilities of the contractor. Recommendations by the geotechnical consultant should not be considered to preclude requirements that are more restrictive by the regulating agencies. The contractor should provide during periods of extensive rainfall plastic sheeting to prevent unprotected slopes from becoming saturated and unstable. When deemed appropriate by the geotechnical consultant or governing agencies the contractor shall install checkdams, desilting basins, sand bags or other drainage control measures. In relatively level areas and/or slope areas, where saturated soil and/or erosion gullies exist to depths of greater than 1.0 foot; they should be overexcavated and replaced as compacted fill in accordance with the applicable specifications. Where affected materials exist to depths of 1.0 foot or less below proposed finished grade, remedial grading by moisture conditioning in-place, followed by thorough recompaction in accordance with the applicable grading guidelines herein may be attempted. If the desired results are not achieved, all affected materials should be overexcavated and replaced as compacted fill in accordance with the slope repair recommendations herein. If field conditions dictate, the geotechnical consultant may recommend other slope repair procedures. Section 6 -Excavations 6.1 Unsuitable Materials Materials that arc unsuitable should be excavated under observation and recommendations of the geotechnical consultant. Unsuitable materials include, but may not be limited to, dry, loose, soft, wet, organic compressible natural soils and fractured, weathered, soft bedrock and nonengineered or otherwise deleterious fill materials. Material identified by the geotechnical consultant as unsatisfactory due to its moisture conditions should be overexcavated; moisture conditioned as needed, to a uniform at or above optimum moisture condition before placement as compacted fill. If during the course of grading adverse geotechnical conditions are exposed which were not anticipated in the preliminary soil report as determined by the geotechnical consultant additional exploration, analysis, and treatment of these problems may be recommended. STANDARD SPECIFICATIONS OF GRADING Page 3 of 26 Appendix D Page D-4 Standard Specifications for Grading 6.2 Cut Slopes Unless otherwise recommended by the geotechnical consultant and approved by the regulating agencies, permanent cut slopes should not be steeper than 2: 1 (horizontal: vertical). The geotechnical consultant should observe cut slope excavation and if these excavations expose loose cohesionless, significantly fractured or otherwise unsuitable material, the materials should be overexcavated and replaced with a compacted stabilization fill. If encountered specific cross section details should be obtained from the Geotechnical Consultant. When extensive cut slopes are excavated or these cut slopes are made in the direction of the prevailing drainage, a non-erodible diversion swale (brow ditch) should be provided at the top of the slope. 6.3 Pad Areas All lot pad areas, including side yard terrace containing both cut and fill materials, transitions, located less than 3 feet deep should be overexcavated to a depth of 3 feet and replaced with a uniform compacted fill blanket of 3 feet. Actual depth of overexcavation may vary and should be delineated by the geotechnical consultant during grading, especially where deep or drastic transitions are present. For pad areas created above cut or natural slopes, positive drainage should be established away from the top-of-slope. This may be accomplished utilizing a berm drainage swale and/or an appropriate pad gradient. A gradient in soil areas away from the top-of-slopes of 2 percent or greater is recommended. Section 7 -Compacted Fill All fill materials should have fill quality, placement, conditioning and compaction as specified below or as approved by the geotechnical consultant. 7 .1 Fill Material Quality Excavated on-site or import materials which are acceptable to the geotechnical consultant may be utilized as compacted fill, provided trash, vegetation and other deleterious materials are removed prior to placement. All import materials anticipated for use on-site should be sampled tested and approved prior to and placement is in conformance with the requirements outlined. STANDARD SPECIFICATIONS OF GRADING Page 4 of 26 Appendix D Page D-5 Standard Specifications for Grading Rocks 12 inches in maximum and smaller may be utilized within compacted fill provided sufficient fill material is placed and thoroughly compacted over and around all rock to effectively fill rock voids. The amount of rock should not exceed 40 percent by dry weight passing the 3/4-inch sieve. The geotechnical consultant may vary those requirements as field conditions dictate. Where rocks greater than 12 inches but less than four feet of maximum dimension are generated during grading, or otherwise desired to be placed within an engineered fill, special handling in accordance with the recommendations below. Rocks greater than four feet should be broken down or disposed off-site. 7.2 Placement of Fill Prior to placement of fill material, the geotechnical consultant should observe and approve the area to receive fill. After observation and approval, the exposed ground surface should be scarified to a depth of 6 to 8 inches. The scarified material should be conditioned (i.e. moisture added or air dried by continued discing) to achieve a moisture content at or slightly above optimum moisture conditions and compacted to a minimum of 90 percent of the maximum density or as otherwise recommended in the soils report or by appropriate government agencies. Compacted fill should then be placed in thin horizontal lifts not exceeding eight inches in loose thickness prior to compaction. Each lift should be moisture conditioned as needed, thoroughly blended to achieve a consistent moisture content at or slightly above optimum and thoroughly compacted by mechanical methods to a minimum of 90 percent of laboratory maximum dry density. Each lift should be treated in a like manner until the desired finished grades are achieved. The contractor should have suitable and sufficient mechanical compaction equipment and watering apparatus on the job site to handle the amount of fill being placed m consideration of moisture retention properties of the materials and weather conditions. When placing fill in horizontal lifts adjacent to areas sloping steeper than 5: 1 (horizontal: vertical), horizontal keys and vertical benches should be excavated into the adjacent slope area. Keying and benching should be sufficient to provide at least six-foot wide benches and a minimum of four feet of vertical bench height within the firm natural ground, firm bedrock or engineered compacted fill. No compacted fill should be placed in an area after keying and benching until the geotechnical consultant has reviewed the area. Material generated by the benching operation should be moved sufficiently away from STANDARD SPECIFICATIONS OF GRADING Page 5 of 26 Appendix D Page D-6 Standard Specifications for Grading the bench area to allow for the recommended review of the horizontal bench prior to placement of fill. Within a single fill area where grading procedures dictate two or more separate fills, temporary slopes (false slopes) may be created. When placing fill adjacent to a false slope, benching should be conducted in the same manner as above described. At least a 3-foot vertical bench should be established within the firm core of adjacent approved compacted fill prior to placement of additional fill. Benching should proceed in at least 3-foot vertical increments until the desired finished grades are achieved. Prior to placement of additional compacted fill following an overnight or other grading delay, the exposed surface or previously compacted fill should be processed by scarification, moisture conditioning as needed to at or slightly above optimum moisture content, thoroughly blended and recompacted to a minimum of 90 percent of laboratory maximum dry density. Where unsuitable materials exist to depths of greater than one foot, the unsuitable materials should be over-excavated. Following a period of flooding, rainfall or overwatering by other means, no additional fill should be placed until damage assessments have been made and remedial grading performed as described herein. Rocks 12 inch in maximum dimension and smaller may be utilized in the compacted fill provided the fill is placed and thoroughly compacted over and around all rock. No oversize material should be used within 3 feet of finished pad grade and within 1 foot of other compacted fill areas. Rocks 12 inches up to four feet maximum dimension should be placed below the upper 10 feet of any fill and should not be closer than 15 feet to any slope face. These recommendations could vary as locations of improvements dictate. Where practical, oversized material should not be placed below areas where structures or deep utilities are proposed. Oversized material should be placed in windrows on a clean, overexcavated or unyielding compacted fill or firm natural ground surface. Select native or imported granular soil (S.E. 30 or higher) should be placed and thoroughly flooded over and around all windrowed rock, such that voids are filled. Windrows of oversized material should be staggered so those successive strata of oversized material are not in the same vertical plane. It may be possible to dispose of individual larger rock as field conditions dictate and as recommended by the geotechnical consultant at the time of placement. STANDARD SPECIFICATIONS OF GRADING Page 6 of 26 Appendix D Page D-7 Standard Specifications for Grading The contractor should assist the geotechnical consultant and/or his representative by digging test pits for removal determinations and/or for testing compacted fill. The contractor should provide this work at no additional cost to the owner or contractor's client. Fill should be tested by the geotechnical consultant for compliance with the recommended relative compaction and moisture conditions. Field density testing should conform to ASTM Method of Test D 1556-00, D 2922-04. Tests should be conducted at a minimum of approximately two vertical feet or approximately 1,000 to 2,000 cubic yards of fill placed. Actual test intervals may vary as field conditions dictate. Fill found not to be in conformance with the grading recommendations should be removed or otherwise handled as recommended by the geotechnical consultant. 7.3 Fill Slopes Unless otherwise recommended by the geotcchnical consultant and approved by the regulating agencies, permanent fill slopes should not be steeper than 2: 1 (horizontal: vertical). Except as specifically recommended in these grading guidelines compacted fill slopes should be over-built two to five feet and cut back to grade, exposing the firm, compacted fill inner core. The actual amount of overbuilding may vary as field conditions dictate. If the desired results are not achieved, the existing slopes should be overexcavated and reconstructed under the guidelines of the geotechnical consultant. The degree of overbuilding shall be increased until the desired compacted slope surface condition is achieved. Care should be taken by the contractor to provide thorough mechanical compaction to the outer edge of the overbuilt slope surface. At the discretion of the geotechnical consultant, slope face compaction may be attempted by conventional construction procedures including backrolling. The procedure must create a firmly compacted material throughout the entire depth of the slope face to the surface of the previously compacted firm fill intercore. During grading operations, care should be taken to extend compactive effort to the outer edge of the slope. Each lift should extend horizontally to the desired finished slope surface or more as needed to ultimately established desired grades. Grade during construction should not be allowed to roll off at the edge of the slope. It may be helpful to elevate slightly the outer edge of the slope. Slough resulting from the placement of individual lifts should not be allowed to drift down over previous lifts. At intervals not STANDARD SPECIFICATIONS OF GRADING Page 7 of 26 Appendix D Page D-8 Standard Specifications for Grading exceeding four feet in vertical slope height or the capability of available equipment, whichever is less, fill slopes should be thoroughly dozer trackrolled. For pad areas above fill slopes, positive drainage should be established away from the top-of-slope. This may be accomplished using a berm and pad gradient of at least two percent. Section 8 -Trench Backfill Utility and/or other excavation of trench backfill should, unless otherwise recommended, be compacted by mechanical means. Unless otherwise recommended, the degree of compaction should be a minimum of 90 percent of the laboratory maximum density. Within slab areas, but outside the influence of foundations, trenches up to one foot wide and two feet deep may be backfilled with sand and consolidated by jetting, flooding or by mechanical means. If on-site materials are utilized, they should be wheel-rolled, tamped or otherwise compacted to a firm condition. For minor interior trenches, density testing may be deleted or spot testing may be elected if deemed necessary, based on review of backfill operations during construction. If utility contractors indicate that it is undesirable to use compaction equipment in close proximity to a buried conduit, the contractor may elect the utilization of light weight mechanical compaction equipment and/or shading of the conduit with clean, granular material, which should be thoroughly jetted in-place above the conduit, prior to initiating mechanical compaction procedures. Other methods of utility trench compaction may also be appropriate, upon review of the geotechnical consultant at the time of construction. In cases where clean granular materials are proposed for use in lieu of native materials or where flooding or jetting is proposed, the procedures should be considered subject to review by the geotechnical consultant. Clean granular backfill and/or bedding arc not recommended in slope areas. Section 9 -Drainage Where deemed appropriate by the geotechnical consultant, canyon subdrain systems should be installed in accordance with CTE's recommendations during grading. Typical subdrains for compacted fill buttresses, slope stabilization or sidehill masses, should be installed in accordance with the specifications. STANDARD SPECIFICATIONS OF GRADING Page 8 of 26 Appendix D Page D-9 Standard Specifications for Grading Roof, pad and slope drainage should be directed away from slopes and areas of structures to suitable disposal areas via non-erodible devices (i.e., gutters, downspouts, and concrete swales). For drainage in extensively landscaped areas near structures, (i.e., within four feet) a minimum of 5 percent gradient away from the structure should be maintained. Pad drainage of at least 2 percent should be maintained over the remainder of the site. Drainage patterns established at the time of fine grading should be maintained throughout the life of the project. Property owners should be made aware that altering drainage patterns could be detrimental to slope stability and foundation performance. Section 10 -Slope Maintenance 10.1 -Landscape Plants To enhance surficial slope stability, slope planting should be accomplished at the completion of grading. Slope planting should consist of deep-rooting vegetation requiring little watering. Plants native to the southern California area and plants relative to native plants are generally desirable. Plants native to other semi-arid and arid areas may also be appropriate. A Landscape Architect should be the best party to consult regarding actual types of plants and planting configuration. 10.2 -Irrigation Irrigation pipes should be anchored to slope faces, not placed in trenches excavated into slope faces. Slope irrigation should be minimized. If automatic timing devices are utilized on irrigation systems, provisions should be made for interrupting normal irrigation during periods of rainfall. 10.3 -Repair As a precautionary measure, plastic sheeting should be readily available, or kept on hand, to protect all slope areas from saturation by periods of heavy or prolonged rainfall. This measure is strongly recommended, beginning with the period prior to landscape planting. If slope failures occur, the geotechnical consultant should be contacted for a field review of site conditions and development ofrecommendations for evaluation and repair. If slope failures occur as a result of exposure to period of heavy rainfall, the failure areas and currently unaffected areas should be covered with plastic sheeting to protect against additional saturation. STANDARD SPECIFICATIONS OF GRADING Page 9 of 26 Appendix D Page D-10 Standard Specifications for Grading In the accompanying Standard Details, appropriate repair procedures are illustrated for superficial slope failures (i.e., occurring typically within the outer one foot to three feet of a slope face). STANDARD SPECIFICATIONS OF GRADING Page 10 of 26 FINISH CUT SLOPE ------- BENCHING FILL OVER NATURAL FILL SLOPE 2%MIN 10' TYPICAL SURFACE OF FIRM EARTH MATERIAL 15' MIN. (INCLINED 2% MIN. INTO SLOPE) BENCHING FILL OVER CUT FINISH FILL SLOPE SURFACE OF FIRM EARTH MATERIAL 10' TYPICAL - ----- 15' MIN OR STABILITY EQUIVALENT PER SOIL ENGINEERING (INCLINED 2% MIN. INTO SLOPE) NOTTO SCALE BENCHING FOR COMPACTED FILL DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 11 of 26 MINIMUM DOWNSLOPE KEY DEPTH TOE OF SLOPE SHOWN ON GRADING PLAN FILL _... ..-_. ----------------------_,,.. ,-:o\J>.\.. _,,.. _. -"'"' <-" -.,... _. .,...-'"'"'"'"'\;\ WI .,... _..,... ..,,,,.. \1c,t:--..,,,,....,,,,.. --:'i "'"" -_. _. . ,,;,.s\\' .,..._"r-.,...----------~ ----u ,,,,,,.,. _,,.. _,,.. _,,.. 1 D' TYPICAL BENCH / _,,...,....,... WIDTH VARIES ~1 .,,,,....,,,,....,,,,.. / 1 _ --COMPETENT EARTH / --MATERIAL --- 2% MIN --- 15' MINIMUM BASE KEY WIDTH TYPICAL BENCH HEIGHT PROVIDE BACKDRAIN AS REQUIRED PER RECOMMENDATIONS OF SOILS ENGINEER DURING GRADING WHERE NATURAL SLOPE GRADIENT IS 5:1 OR LESS, BENCHING IS NOT NECESSARY. FILL IS NOT TO BE PLACED ON COMPRESSIBLE OR UNSUITABLE MATERIAL. NOTTO SCALE FILL SLOPE ABOVE NATURAL GROUND DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 12 of 26 -- ---- 4' (/) ~ z 0 )> :,::, 0 (/) -,:, -,:, m ~ Q ct):!) ~ (") w )> 0 :j -o NZ CF> (/) .,, 0 :,::, G) :,::, )> S2 z G) REMOVE ALL TOPSOIL, COLLUVIUM, AND CREEP MATERIAL FROM TRANSITION CUT/FILL CONTACT SHOWN ON GRADING PLAN CUT/FILL CONTACT SHOWN ON "AS-BUILT" NATURAL ~ ----TOPOGRAPHY ------ _,,. ...----------------------CUT SLOPE" ------------ FILL ------------------" R'i:-w-o\J\:. ----------~~;~~oc_;;~~-------- ,o,,so1'-· C ----------·11r11•.---------4' TYPICAL I ---------/ ------,,,, ...-2% MIN --- 15' MINIMUM NOTTO SCALE -- 10' TYPICAL BEDROCK OR APPROVED FOUNDATION MATERIAL "NOTE: CUT SLOPE PORTION SHOULD BE MADE PRIOR TO PLACEMENT OF FILL FILL SLOPE ABOVE CUT SLOPE DETAIL ------ TYPICAL BENCHING SEE DETAIL BELOW MINIMUM 9 FP PER LINEAR FOOT OF APPROVED FILTER MATERIAL CAL TRANS CLASS 2 PERMEABLE MATERIAL FILTER MATERIAL TO MEET FOLLOWING SPECIFICATION OR APPROVED EQUAL: DETAIL 14" MINIMUM SIEVE SIZE PERCENTAGE PASSING 1" 100 90-100 40-100 25-40 18-33 5-15 INCLINE TOWARD DRAIN AT 2% GRADIENT MINIMUM MINIMUM 4" DIAMETER APPROVED PERFORATED PIPE (PERFORATIONS DOWN) 6" FILTER MATERIAL BEDDING APPROVED PIPE TO BE SCHEDULE 40 POLY-VINYL-CHLORIDE (P.V.C.) OR APPROVED EQUAL. MINIMUM CRUSH STRENGTH 1000 psi PIPE DIAMETER TO MEET THE FOLLOWING CRITERIA, SUBJECT TO FIELD REVIEW BASED ON ACTUAL GEOTECHNICAL CONDITIONS ENCOUNTERED DURING GRADING LENGTH OF RUN INITIAL 500' 500' TO 1500' > 1500' PIPE DIAMETER 4" 6" 8" N0.4 N0.8 NO. 30 NO. 50 NO. 200 0-7 0-3 NOT TO SCAL E TYPICAL CANYON SUBDRAIN DETAIL STANDARD SPECIFICATIONS FOR GRA DING Page 1 4 of 26 CANYON SUBDRAIN DETAILS TYPICAL BENCHING SEE DETAILS BELOW INCLINE TOWARD DRAIN AT 2% GRADIENT MINIMUM TRENCH DETAILS 6" MINIMUM OVERLAP OPTIONAL V-DITCH DETAIL MIRAFI 140N FABRIC OR APPROVED EQUAL 6" MINIMUM OVERLAP ---------0 24" MINIMUM MINIMUM 9 FT3 PER LINEAR FOOT OF APPROVED DRAIN MATERIAL MIRAFI 140N FABRIC OR APPROVED EQUAL APPROVED PIPE TO BE SCHEDULE 40 POLY- VINYLCHLORIDE (P.V.C.) 24" MINIMUM 9 FT3 PER LINEAR FOOT OR APPROVED EQUAL. MINIMUM CRUSH STRENGTH 1000 PSI. MINIMUM OF APPROVED DRAIN MATERIAL 60° TO 90° DRAIN MATERIAL TO MEET FOLLOWING SPECIFICATION OR APPROVED EQUAL: PIPE DIAMETER TO MEET THE FOLLOWING CRITERIA, SUBJECT TO FIELD REVIEW BASED ON ACTUAL GEOTECHNICAL CONDITIONS ENCOUNTERED DURING GRADING SIEVE SIZE 1 ½" 1" ¾" ¾" NO. 200 PERCENTAGE PASSING 88-100 5-40 0-17 0-7 0-3 LENGTH OF RUN INITIAL 500' 500' TO 1500' > 1500' NOT TO SCALE GEOFABRIC SUBDRAIN STANDARD SPECIFICATIONS FOR GRADING Page 15 of 26 PIPE DIAMETER 4" 6" 8" FRONT VIEW CONCRETE CUT-OFF WALL SUBDRAIN PIPE SIDE VIEW 24" Min. ,, ' ~' ... ' .. . .. ... .. ... . .. '· "'-'-" t---,- ~ 6" Min. CONCRETE ~ 12" Min. f--6" Min. CUT-OFF WALL---.,•-··.'!··~· . .. . . .. 6" Min . SOILD SUBDRAIN PIPE NOT TO SCAL E 6" Min. 6" Min. RECOMMENDED SUBDRAIN CUT -OFF WALL STANDA RD SPECIFICATIONS FOR GRADING Page 16 of 26 FRONT VIEW SUBDRAIN OUTLET PIPE (MINIMUM 4" DIAMETER) SIDE VIEW ALL BACKFILL SHOULD BE COMPACTED IN CONFORMANCE WITH PROJECT SPECIFICATIONS. COMPACTION EFFORT SHOULD NOT DAMAGE STRUCTURE -►. !►. -'►. -'b.''b..'b.' ~.,~.,A,, . ' I • -• • I ► -"► -'►-, ' . b. ' ' ' t.. ' ' . b. . .b ,,A ,,"fl'., ►. -'►.-'►.-, ,, b. . ' b. . ' b. • A ,,J:..,,.a.,, -. . -.. -.. ► -, ► -, ►-., . b. . •' ' b. . ' . b. . .e.,,A ,,J:..,, 24" Min. 24" Min. NOTE: HEADWALL SHOULD OUTLET AT TOE OF SLOPE OR INTO CONTROLLED SURFACE DRAINAGE DEVICE ALL DISCHARGE SHOULD BE CONTROLLED THIS DETAIL IS A MINIMUM DESIGN AND MAY BE MODIFIED DEPENDING UPON ENCOUNTERED CONDITIONS AND LOCAL REQUIREMENTS NOT TO SCALE 24" Min. 12" TYPICAL SUBDRAIN OUTLET HEADWALL DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 17 of 26 4" DIAMETER PERFORATED PIPE BACKDRAIN 4" DIAMETER NON-PERFORATED PIPE LATERAL DRAIN SLOPE PER PLAN FILTER MATERIAL 15' MINIMUM BENCHING H/2 AN ADDITIONAL BACKDRAIN AT MID-SLOPE WILL BE REQUIRED FOR SLOPE IN EXCESS OF 40 FEET HIGH. KEY-DIMENSION PER SOILS ENGINEER (GENERALLY 1/2 SLOPE HEIGHT, 15' MINIMUM) DIMENSIONS ARE MINIMUM RECOMMENDED NOT TO SCALE TYPICAL SLOPE STABILIZATION FILL DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 18 of 26 4" DIAMETER PERFORATED PIPE BACKDRAIN 4" DIAMETER NON-PERFORATED PIPE LATERAL DRAIN SLOPE PER PLAN FILTER MATERIAL 15' MINIMUM 11 1 11 1 11 11- 1 I BENCHING H/2 ADDITIONAL BACKDRAIN AT MID-SLOPE WILL BE REQUIRED FOR SLOPE IN EXCESS OF 40 FEET HIGH. KEY-DIMENSION PER SOILS ENGINEER DIMENSIONS ARE MINIMUM RECOMMENDED NOT TO SCALE TYPICAL BUTTRESS FILL DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 19 of 26 20' MAXIMUM FINAL LIMIT OF EXCAVATION OVEREXCAVATE OVERBURDEN (CREEP-PRONE) DAYLIGHT LINE FINISH PAD OVEREXCAVA TE 3' AND REPLACE WITH COMPACTED FILL COMPETENT BEDROCK TYPICAL BENCHING LOCATION OF BACKDRAIN AND OUTLETS PER SOILS ENGINEER AND/OR ENGINEERING GEOLOGIST DURING GRADING. MINIMUM 2% FLOW GRADIENT TO DISCHARGE LOCATION. EQUIPMENT WIDTH (MINIMUM 15') NOT TO SCALE DAYLIGHT SHEAR KEY DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 20 of 26 NATURAL GROUND PROPOSED GRADING ---- -------------------- ----------------------------------------------- BASE WIDTH "W" DETERMINED BY SOILS ENGINEER COMPACTED FILL "W" NOT TO SCALE ----------------------- PROVIDE BACKDRAIN, PER BACKDRAIN DETAIL. AN ADDITIONAL BACKDRAIN AT MID-SLOPE WILL BE REQUIRED FOR BACK SLOPES IN EXCESS OF 40 FEET HIGH. LOCATIONS OF BACKDRAINS AND OUTLETS PER SOILS ENGINEER AND/OR ENGINEERING GEOLOGIST DURING GRADING. MINIMUM 2% FLOW GRADIENT TO DISCHARGE LOCATION. TYPICAL SHEAR KEY DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 21 of 26 FINISH SURFACE SLOPE 3 FT3 MINIMUM PER LI NEAR FOOT APPROVED FILTER ROCK* CONCRETE COLLAR PLACED NEAT A COMPACTED FILL 2.0% MINIMUM GRADIENT 4" MINIMUM DIAMETER SOLID OUTLET PIPE SPACED PER SOIL A ENGINEER REQUIREMENTS 4" MINIMUM APPROVED PER FORA TED PIPE** (PERFORATIONS DOWN) MINIMUM 2% GRADIENT TO OUTLET DURING GRADING TYPICAL BENCH INCLINED .. APPROVED PIPE TYPE: MINIMUM 12" COVER SCHEDULE 40 POLYVINYL CHLORIDE (P.V.C.) OR APPROVED EQUAL. MINIMUM CRUSH STRENGTH 1000 PSI BENCHING TOWARD DRAIN DETAIL A-A OMPACTE BACKFILL 12" MINIMUM TEMPORARY FILL LEVEL MINIMUM 4" DIAMETER APPROVED SOLID OUTLET PIPE *FILTER ROCK TO MEET FOLLOWING SPECIFICATIONS OR APPROVED EQUAL: SIEVE SIZE 1" ¾" ¾" N0.4 NO. 30 NO. 50 NO. 200 PERCENTAGE PASSING 100 90-100 40-100 25-40 5-15 0-7 0-3 NOT TO SCALE TYPICAL BACKDRAIN DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 22 of 26 FINISH SURFACE SLOPE MINIMUM 3 FT3 PER LINEAR FOOT OPEN GRADED AGGREGATE* TAPE AND SEAL AT COVER CONCRETE COLLAR PLACED NEAT COMPACTED FILL A 2.0% MINIMUM GRADIENT A MINIMUM 4" DIAMETER SOLID OUTLET PIPE SPACED PER SOIL ENGINEER REQUIREMENTS MINIMUM 12" COVER *NOTE: AGGREGATE TO MEET FOLLOWING SPECIFICATIONS OR APPROVED EQUAL: SIEVE SIZE PERCENTAGE PASSING 1 ½" 100 1" 5-40 ¾" 0-17 ¾" 0-7 NO. 200 0-3 TYPICAL BENCHING DETAIL A-A 12" MINIMUM NOT TO SCALE MIRAFI 140N FABRIC OR APPROVED EQUAL 4" MINIMUM APPROVED PERFORATED PIPE (PERFORATIONS DOWN) MINIMUM 2% GRADIENT TO OUTLET BENCH INCLINED TOWARD DRAIN TEMPORARY FILL LEVEL MINIMUM 4" DIAMETER APPROVED SOLID OUTLET PIPE BACKDRAIN DETAIL (GEOFRABIC) STANDARD SPECIFICATIONS FOR GRADING Page 23 of 26 SOIL SHALL BE PUSHED OVER ROCKS AND FLOODED INTO VOIDS. COMPACT AROUND AND OVER EACH WINDROW. FILL SLOPE 1 FILL SLOPE 1 CLEARZONE ~ EQUIPMENT WIDTH STACK BOULDERS END TO END. DO NOT PILE UPON EACH OTHER. 0 0 0 NOT TO SCALE ROCK DISPOSAL DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 24 of 26 STAGGER ROWS STREET 10' 5' MINIMUM OR BELOW DEPTH OF DEEPEST UTILITY TRENCH (WHICHEVER GREATER) FINISHED GRADE BUILDING 0 NO OVERSIZE, AREA FOR FOUNDATION, UTILITIE~~l AND SWIMMING POOL:_l 0 0 ~4•~ WINDROW~ 0 TYPICAL WINDROW DETAIL (EDGE VIEW) GRANULAR SOIL FLOODED TO FILL VOIDS HORIZONTALLY PLACED COMPACTION FILL PROFILE VIEW NOTTO SCALE ROCK DISPOSAL DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 25 of 26 GENERAL GRADING RECOMMENDATIONS CUT LOT -==,-----------------=:::::;::,----ORIGINAL GROUND --------- TOPSOIL, COLLUVIUM AND _. _. _. WEATHERED BEDROCK _. _. _. _. ------------ 5' MIN 3' MIN ---------------_. UNWEATHERED BEDROCK OVEREXCAVATE AND REGRADE CUT/FILL LOT (TRANSITION) ----------COMPACTED FILL .,,,,,,..,,,,,,..,,,.,..,,,,,,. ----------TOPSOIL, COLLUVIUM _.,,..,,..,,..,,. -AND WEATHERED - BEDROCK .,,. -.,,. .,,. ..... .,,. .,,. ..... .,,. UNWEATHERED BEDROCK NOTTO SCALE TRANSITION LOT DETAIL STANDARD SPECIFICATIONS FOR GRADING Page 26 of 26 ORIGINAL .,,.1/ GROUND 'MIN 3' MIN OVEREXCAVATE AND REGRADE (City of Carlsbad CERTIFICATION OF SCHOOL FEES PAID This form must \,e completed by the City, the applicant, and the appropriate school dlstrlc:1$ and returned to the City prior to Issuing a building permit. The City will not Issue any bulldlng permit without a completed school fee form. Project# & Name: Permit#: Project Address: Assessor's Parcel #: Project AJ)pilcant: (Owner Name) CBR2021·0687 1740 ORIOLE CT 21S9211700 Residential Square Feet: New/Addittons: -----------------Second Dwelling Unit: _744 ________________ _ Commercial Square Feat:· New/Additions: ----------------- CI ty Certlflcatlon:City of Carlsbad Building Division Date: 04/16/2021 CertlficaUon of Applicant/owners. The pe111on executing this declara!lon ("Owner") certifies under penaltY of petjul)I that (1) the Information prov!ded above Is correct and true to the best or !he Owners knowledge. and !hot the Owner will file an amended eerffflcatlon Cf payment and pay the addlllonal fee if Owner requests an lncrea"' In the number of dwelling units or square footage after the building permit la 1$1Ued or If the Initial determination of units or lit!Uare footage Is found to be incorrect and that (2) the Owner IJ the owner/developer of the above desertbed projec~s), or that the pen,on exeC1Jllng this declaration Is authorized lo sign on behe~ of the OWner. lj Carlsbad Unlfl•d School D1,trlct 8225 El Camino Real ,,,,, cartsbad CA 92009 "/: 11.,.,'' Phone: (760) 331-5000 ilJ Enclnltu Union School D1,trlct 101 South Rancho Santa Fe Rd Encinitas, CA 92024 Phone: (760) 944-4300 x1166 Iii! San Dlegulto Union H.S. District 6B4 Requeze Dr. Encinitas, CA 92024 Phone: (760) 753-6491 Ext 5514 (By AppL Only) IW:il San Marcos Unified Sch. Dllltrlct 255 Pico Ave Ste. 100 San Marcos, CA 92069 Phone: (760) 290-2649 Contact: Katherine Maroelja (By Appl.only) • Vl•te Unified School Dlatrlct 1234 Arcadia Drive Vista CA 82083 Phone: (760) 726•2170 x2222 SCHOOL PISTRlCT SCHOOL FEE CBRTIFICATION (To be completed by the school dl1trlct(1)) THIS FORM INDICATES THAT THE SCHOOL DISTRICT REQUIREMENTS FOR THE PROJECT HAVE BEEN OR WILL BE SATISFIED. The under■lgned, being duly authorized by the applicable s,hool Dlatrl,:t, ce111fl• that th• daveloper, builder, or owner h■• Htlllfled the obllg■tlon for 1chool facllltles, Thia Is to ce111fy that the ■ppllcant lleted on p■ga 1 has paid all amounts or complated other appllc■ble 1chool mitigation datermlned by tha School District. Th• City 11111v ls■u• building permits for thl• project. Signature of AuthoriZed School District Official: ;)d , Y:'.), f 6 , , ,,,.-,,~Z5 • :r:,. c CJu.,c.vL..V.&.•½ ,/ . I ~> C::..,L-.. ""'~""'~\ '<)'KZ... L I "' / Title::-.~ l~ y:-£ )," 1Y\)#<Y-\d,,:-"'· v\.K Date: I -a-{)·;:;>,, Name of School District CARLSBAD UNIFIED SCHOOL DISTRlCT Phone: v) /c (J 3 ?J / -:::,c\(X:) m5 El CAMINO REAL Community & Econom1&~Aiftl()tul!dlng l>lvl,lon 1635 Faraday Avenu.e I Carlsbad, CA 92008 I 760-602-2719 I 760-602-8558 fax I buildloR@carlsbadca.gov STORM WATER POLLUTION PREVENTION NOTES 1 ALL IIIECESSARY [QUIPU[NT AND MATERIALS SHALL BE AVAILABLE ON SITE TO FACIUTAT[ RAPID INSTALLATION OF ERO~ON ANO SEDIMENT CONTROL BMPs "™£N RAIN IS EUINENT. 2. THE 01\NER/CONTRACTOR SHALL RESTORE AU EROSION CONTROL DEVICES TO WORKING ORDER TO THE SATISfACTION OF TH[ CITY INSPECTOR AFTEll EACH RUN-Of"F PRODUCING RAINFALL lHE 01\NER/COIHRACTOR SHALL INSTALL AOOITIONAL £ROSION CONTRQ MEASURES AS IAAY BE REOUIR[O BY THE CITY INSPECTOR DUE TO INCOMPU:T[ GRADING OPERATIONS OR UIIIFORESW,J CIRCUMSTANCES WHICH MAY ARISE. 4. ALL REMOVABLE PROJ£CTI"1: □£VICES SHALL BE Ir-I PLACE AT TI-IE END Of EACH WORKING DAY .,EN THE FIVE: (5) DAY RAIN PROOABILITY FORECAST EXCEEDS FORTY PEtENT (40:i:). SILT AND Oll-lER DEBRIS SHALL BE RO.IOVED AFTER EACH RAINFALL 5. ALL ~A\1:L BAGS SHALL CONTAIN J/4 INCH MINIMUM AGGR[GAJf. 6. AOEOUA T[ [ROSION ANO SEOIMENT CONTROL ANO P£lllMETER PROTECTION BEST MANAG£MENT PRACTICE MEASURES MUST BE INSTALLED AND MAINTAINED. THE CITY INSPECTOR SHALL HAVE THE AUTHORITY TO AL 1£R THIS PLAN DURING OR BEFORE CONSTRUCTION AS NEEDED TO ENSURE COMPLIANCE \\ITH CITY STORM WATER QUALITY REGULATIONS OWNER'S CERTIFlCATE; I UN0£RSTANO ANO ACl<NOMLOGE Tl·UT I MUST (1) IMPLEW£NT BEST MANAGOl[NT PRACTICES (BMPS} DURING CONSTRUCTION ACTil1n[S TO THE MAXIMUM fXTINT PRACTIC4Bl.£ TO AVOO Tlif MOlllll2ATICfl Of" PCUUTANTS !i!CH AS SfOIMENT AND TO A~IO THE EXPOSURE Of STORM WAT£R TO COffSTRUCT!Off REl.AT£D PCliUTANTS; AND (2) ADHtRf TO, ANO AT AU TIMES, COi.iPL Y YIITH THIS CITY APPROl(O TIER 1 CONSTRUCTION S'IIPPP THROUGHOUT Ill[ DURATION OF 111[ COOSTRUCTION ACTio,TIES UNTIL 111[ CONSTRUCTION IIORK IS COt.4Pl.£T£ ANO APPRQl(O BY THE CITY Of" CI.RlSBAO ~~-9il~}X,i-£Y _, .,., ,_.,..lz.1 Oill'IER(S)/Olll'IERS AG£NI Ni.i.lE (S1GNAnlRE) ~ [-29 STORM WATER COMPLIANCE FORM TIER 1 CONSTRUCTION SWPPP BEST MANAGEMENT PRACTICES (BMP) SELECT/ON TABLE , __ s«limen,: CamM BMPs ,,_, No,,.St,,mW.io, w-~.-.:1-• .... --Mo-,r18'Fa Polul>o,,C.:.,!!t,i!!MJ>o ' I -~ i ' ' ' j " , • ' I ' .I ' ·" i ~~ • • • ... ! s } .. ' • • • ii ' § ] Best Managemeri Practice" i !! l c • f. I ' ~! ;! ! H (BMP) 09script,on ➔ ~ ' ] .I I ':, ~! ,, !i; '·' ~J , ! • .! i Ji • !' •1 H f! i 'f • ~ ~" ' l !~ j " ~ ~ •• u H h j t •.• • 0 • ii 6 . "' ] a£ •· 1n ll ~ol CAsa&.°"'9\lllon ➔ 1 ~ ; ~ J J 0 J ~ ~ i i " 7 i C.:.,IJIJCllonAcii .... " a " " " " " • " i I j Grodin I Oioturt,,.,,,. Trom:hl ,Cd..,tion e Sc•.cuttan Woote 01 o•ol Sta In ' Down ~roo E ment r,fointenanee and fuel.-. Hozordou• SubitMce Use Stora e Oowoter.-. Site Ace••• Aero•• Dirt OtMr li•t· lnotrucl•oos: 1. CMcl< the bo• to the lelt o( oil opplkoble con,tn,ctlon octlvity (first column) expected to occur w,.,~ ronstn,ctlM, 2· ):<::.~ ~~i ~ ~e:~ l~· u:pdu~i:i~· .,t,;t~~ti~ rr:;,· th~hli~f•d."e:"!'h";'t~~ ~!':1he s17.;,•~ti~t;:z.1.~t~~ t~~~:i ~~~~~1:n.number. Cllorn,e one J. Relor to the CASOA cc,iotn,ction hOndbooio. far information and detoU of the chO•en BMP, ood ho• 10 apply then, to th• pro~t Conot'lJction n-,,.,,1 to Storm 'il<Jler C.,olily (Chock Bo,) 0 MtDIUM ~LOW i H h ~ ~l if I Pa~e 1 of 1 REV 11/17 (city of Carlsbad PURPOSE CLIMATE ACTION PLAN CONSISTENCY CHECKLIST 8-50 Development Services Building Division 1635 Faraday Avenue (760) 602-2719 www.carlsbadca.gov This checklist is intended to assist building permit applicants identify which Climate Action Plan (CAP) ordinance requirements apply to their projects. The completed checklist must be included in the building permit application. It may be necessary to supplement the completed checklist with supporting materials, calculations or certifications, to demonstrate full compliance with CAP ordinance requirements. For example, projects that propose or require a performance approach to comply with energy-related measures will need to attach to this checklist separate calculations and documentation as specified by the ordinances. NOTE: The following type of permits are not required to fill out this form ❖ Patio I ❖ Decks I ❖ PME (w/o panel upgrade) I ❖ Pool ~ If an item in the checklist is deemed to be not applicable to a project, or is less than the minimum required by ordinance, an explanation must be provided to the satisfaction of the Building Official. ~ Details on CAP ordinance requirements are available on the city's website. ~ A CAP Building Plan template (form B-55) shall be added to the title page all building plans. This template shall be completed to demonstrate project compliance with the CAP ordinances. Refer to the building application webpage and download the latest form. Project Name/Building Permit No. Washington ADU Property Address/APN: 215-921-17-00 Applicant Name/Co.: Alvin Washington Applicant Address: 1738 Oriole Ct. Carlsbad, Ca 92011 Contact Phone: 760 809-8732 Contact Email: runtafinancial@msn.com Contact information of person completing this checklist (if different than above): Name: Company name/address: Applicant Signatur~ B-50 Contact Phone: Contact Email: Page 1 of 6 Revised 06/18 City of Carlsbad Climate Action Plan Consistency Checklist Use the table below to determine which sections of the Ordinance Compliance checklist are applicable to your project. For alterations and additions to existing buildings, attach Building Permit Valuation worksheet Building Permit Valuation (BPV) from worksheet:$ \\'r:)14-Ulq - '.:. Coril:/i'iicii&n l'yoJ~:,:1~:.,i;,),, .. ,".·.· o.q/[,.,,,,~.'.'1s,". ·,.• .. · ... / ,. '•',~.:"',;.j:, ,·t , Jo/'y'.J+ •;r, ;.a~ , D Residential A high-rise residential building is 4 or more stories, including a Low-rise High-rise mixed-use building in which at least 20% of its conditioned floor H " area is residential use 0 New construction ( 2A, 3A,) 18, 2B, 4A 3B,4A 0 Additions and alterations: III BPV < $60,000 N/A N/A All residential additions and alterations □ BPV" $60,000 1A, 4A 4A 1-2 family dwellings and townhouses with attached garages □ Electrical service panel upgrade only only 'Multi-family dwellings only where interior finishes are removed □ BPV" $200,000 1A, 4A' 18, 4A' and significant site work and upgrades to structural and mechanical, electrical, and/or plumbing systems are proposed D Nonresidential □ New construction 1 B, 2B, 3B, 4B and 5 □ Alterations: □ BPV" $200,000 or additions" 1,000 1B, 5 square feet D BPV" $1,000,000 1B, 2B, 5 Building alterations of" 75% existing gross floor area D "2,000 sq. ft. new roof addition 2B, 5 1 B also applies if BPV " $200,000 1. Energy Efficiency Please refer to Cansbad Municipal Code (CMC) sections 18.21.155 and 18.30.190, and the California Green Building Standards Cede (CALGreen)for more information when completing this section. A D Residential addition or alteration~ $60,000 building permit valuation. D N/A __________ _ See CMC section 18.30.190. D Exception: Home energy score" 7 (attach certification) Year Built Single-family Requirements Multi-family Requirements □ Before 1978 Select one: □ Duct sealina □ Attic insulation □ Ccol roof □ Attic insulation D 1978 and later Select one: □ Lighting package □ Water heating Package D Between 1978 and 1991 Select one: □Duct sealina □Attic insulation □Cool roof D 1992 and later Select one: D Lighting package □Water heating package B. D Nonresidential' new construction or alterations~ $200,000 building permit valuation, or additions ~ 1,000 square feet. D N/A Updated 8/15/2019 2 City of Carlsbad Climate Action Plan Consistency Checklist See CMC 18.21.155 and CALGreen Appendix AS, Division AS.2 -Energy Efficiency. A5.203.1.1 Choose one: a .1 Outdoor lighting □ .2 Warehouse dock seal doors [I .3 Restaurant service water heating (comply 111th California Energy Code section 140.5, as amended) □ NIA _________ _ [I .4 Daylight design PAFs □ .5 Exhaust air heat recoveiy A5.203.1.2.1 Choose one as applicable: □ D .95 Energy budget □ D .90 Energy budget A5.211.1" D On-site renewable energy □ NIA A5.211.3" D Green power (if offered by local utility provider, 50% minimum renewable sources) □ NIA A5.212.1 D Elevators and escalators □ NIA A5.213.1 D Steel framing 0 NIA • Includes hotels/motels and high-rise residential buildings .. For alterations~ $1,000,000 BPV and affecting > 75% existing gross floor area, or alterations that add 2,000 square feet of new roof addition: comply with CMG 18.30.130 instead. 2, oltaic Systems A. Re idential new construction (for low-rise residential building permit applications submitted after 1/1/20). Refer to 2019 California En rgy Code section 150.1(c)14 for requirements. Notes: 1) High-rise residential buildings are subject to nonresidential photovoltaic ----~' uirement (2B below) instead. 2) If project includes installation of an electric heat pump water heater pursuantto CMC 18.30.150(B) (high-rise residential) or 18.30.170(6) (low-rise residential), increase system size by .3kWdc if PV offset option is selected. Floor Plan ID (use additional CFA #d.u. Calculated kWdc' sheets if necessaiy) Total System Size: kWdc = (CFAx.572) / 1,000 + (1.15 x#d.u.) 'Fonmula calculation where CFA = conditional floor area, #du= number of dwellings per plan type If proposed system size is less than calculated size, please explain. Exception □ □ □ □ kWdc B. D Nonresidential new construction or alterations ~$1,000,000 BPV and affecting ~75% existing floor area, or addition that increases roof area by ~2,000 square feet. Please refer to CMC section 18.30.130 when completing this section. Note: This section also applies to high-rise residential and hotel/motel buildings, Choose one of the following methods: □ Gross Floor Area (GFA) Method GFA: 811 < 10,000s.f. Enter: 5 kWdc Min. System Size: 011" 10,000s.f. calculate: 15 kWdc x (GFN10,000)., kWdc "Round building size factor to nearest tenth, and round system size to nearest whole number. D Time-Dependent Valuation Method Updated 8/15/2019 3 City of Carlsbad Climate Action Plan Consistency Checklist Annual TDV Energy use:"' ______ x .80= Min. system size: ____ _ kWdc "'Attach calculation documentation using modeling software approved by the California Energy Commission. ~="'o"'r systems serving individual dwelling units choose one: D Heat pump water heater AND Compact hot water distribution AND Drain water heat recovery (low-rise residential only) D Heat pump water heater AND PV system .3 kWdc larger than required in CMC section 18.30.130 (high rise residential hotel/motel) or CA Energy Code section 150.1 (c} 14 (low-rise residential) D Heat pump water heater meeting NEEA Advanced Water Heating Specification Tier 3 or higher D Solar water heating system that is either .60 solar savings fraction or 40 s.f. solar collectors [!] Exception: Tankless Water heater D For systems serving multiple dwelling units, install a central water-heating system with all of the following: D Gas or propane water heating system D Recirculation system per CMC 18.30.150(8} (high-rise residential, hotel/motel) or CMC 18.30.170(8) (low- rise residential) D Solar water heating system that is either: D .20 solar savings fraction D .15 solar savings fraction, plus drain water heat recovery D Exception: B. 0 Nonresidential new construction Please refer to Carlsbad Ordinance CMC section 18.30.150 when completing this section. D Water heating system derives at least 40% of its energy from one of the following (attach documentation): D Solar-thermal D Photovoltaics D Recovered energy □Water heating system is (choose one): D Heat pump water heater D Electric resistance water heater(s) □Solar water heating system with .40 solar savings fraction D Exception: Updated 8/15/2019 4 City of Carlsbad Climate Action Plan Consistency Checklist 4. Electric Vehicle Charging A '§;J. Residential New construction and major alterations* Please refer to Carlsbad Ordinance CMC section 18.21.140 when com One and two-family residential dwelling or townhouse with attached garage: -----"~0::.'..'.n.'.:e_'-_E~V:_:S~E'.:...'..R~e'.':a'..':'.d'.!..y_i:p'.'.'a~rk~i:,:ng"'....:'.s!'.p'.:'.ac::'.:e:-__'_'.re:::q!'.u'.::ir'.':e'.':d'_ ____ D':::=..'.:E:"x.'.:ce:::,p:::t:::io'.'..n'._:~::e==~==~~==~~::::!:~~$==--'~ D Multi-family residential· D Exception · Total Parking Spaces EVSE Soaces Proposed Caoable Ready Calculations: Total EVSE spaces= .10 x Total parking (rounded up to nearest whole number) EVSE Installed = Total EVSE Spaces x .50 (rounded up to nearest whole number) EVSE other= Total EVSE spaces -EVSE Installed (EVSE other may be "Capable," "Ready" or "Installed.") Installed Total 'Major alterations are: ( 1) for one and two-family dwellings and townhouses with attached garages, alterations have a building permit valuation ~ $60,000 or include an electrical service panel upgrade: (2) for multifamily dwemngs (three units or more without attached garages), alterations have a building permit valuation~ $200,000, interior finishes are removed and significant site work and upgrades to structural and mechanical, electrical, and/or plumbing systems are proposed. 8 D Nonresidential new construction (includes hotels/motels) D Exception · Total Parking Spaces EVSE Spaces Proposed Capable Readv Installed Total Calculation· Refer to the table below· Total Number of Parkina Spaces provided Number of required EV Spaces Number of required EVSE Installed Spaces □ 0-9 1 1 □ 10-25 2 1 I 26-50 4 2 □ 51-75 6 3 □ 76-100 9 5 101-150 12 6 151-200 17 9 201 and over 10 percent of total 50 oercent of Reauired EV Soaces Updated 8/15/20 I 9 5 City of Carlsbad Climate Action Plan Consistency Checklist 5. D Transportation Demand Management (TOM): Nonresidential ONLY An approved Transportation Demand Management (TOM) Plan is required for all nonresidential projects that meet a threshold of employee-generated ADT. City staff will use the table below based on your submitted plans to detenmine whether or nor your permit requires a TOM plan. If TOM is applicable to your permit, staff will contact the applicant to develop a site-specific TOM plan based on the penmit details. Acknowledgment: Employee ADT Estimation for Various Commercial Uses Use Office (all)2 Restaurant Retai13 Industrial Manufacturing Warehousin EmpADTfor first 1,000 s.f. 20 11 8 4 4 4 EmpADTI 1000 s.f., 13 11 4.5 3.5 3 1 1 Unless otherwise noted, rates estimated from /TE Trip Generation Manual, 10thEdition 2 For all office uses, use SAN DAG rate of 20 ADT/1,000 sf to calculate employee ADT 3 Retail uses include shopping center, variety store, supermarket, gyms, pharmacy, etc. Other commercial uses may be subject to special consideration Sample calculations: Office: 20,450 sf 1. 20,450 sf/ 1000 x 20 = 409 Employee ADT Retail: 9,334 sf 1. First 1,000 sf= 8 ADT 2. 9,334 sf -1,000 sf= 8,334 sf 3. 8,334 sf I 1,000 x 4.5 + 8 = 46 Em lo ee ADT I acknowledge that the plans submitted may be subject to the City of Carlsbad's Transportation Demand Managemenl Ordinance. I agree to be contacted should my permit require a TOM plan and understand that an approved TOM plan is a condition of penmit issuance. Applicant SignatuM ::::-,. Person other than Applicant to be contacted for TOM compliance (if applicable): Name(Printed): __________________ _ Email Address: -------------------- Updated 8/15/2019 Date: 3\ I\\ i.. I I Phone Number: ------ 6