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DIR-2010-13b CITY OF CUPERTINO 10300 Torre Avenue, Cupertino, California 95014 (408) 777-3308 To: Mayor and City Council Members Chairperson and Planning Commissioners From: Aarti Shrivastava, Director of Community Development�- Prepared by: Aki Honda Snelling, Senior Planner Date: Apri128, 2010 Subject: Director's Minor Modification, DIR-2010-13, for a temporary use permit to allow installation of a temporary generator for a period of 30 days on property located at 20740 Valley Green Drive (Apple). Chapter 19.132 of the Cupertino Municipal Code allows for administrative approval of minor changes in a project. The Director reports his decision to the City Council and Planning Commission in time to allow an appeal of the decision within fourteen calendar days. BACKGROUND The applicant, Art Osaki on behalf of Apple, Inc., has submitted an application for a temporary use permit to allow the installation of a temporary emergency generator for no more than 30 days on the subject property. The temporary generator is needed in case of any interruptions to power during an upcoming inspection of Apple's main electrical switchgear for this site (See project description letter). The generator is planned as an emergency backup power source, and therefore, is not planned to run, unless utility power is lost. Part of Apple's maintenance program includes a thorough inspection of the main electrical switchgear for the site every 5 years. Because the building on this site houses Apple's data center that performs critical business data processing, the temporary generator is needed to supply energy should there be an interruption of power during the switchgear testing. Apple is intending to conduct this inspection once they receive the City's approval. The site is located on the southeast corner of Valley Green Drive and Beardon Drive, surrounded by the Valley Green Apartments to the west across Beardon Drive, industrial office buildings to the north and east occupied by Apple, and single-family residences to the south. Aerial Photo ,�, , 3 � � I � � , � . .............� .• I� � �� � �i A� Y � � �.�. 4 t � � � # g �+. I i T 3 Yw „� us ''� ," a^` - �� • £ .�.. � a �-� e�: q ( � I fy � �. E '� w�. ,.,,"��;'„ DIR-2010-13 20740 Valley Green Drive Page 2 DISCUSSION The temporary generator is an 8'x 40' portable, trailer-mounted generator that is self contained and housed in a weather-tight, sound reducing enclosure with locked doors. Although the City's Community Noise Control Ordinance allows for exceptions to the noise requirements for emergency generators as a performance of emergency work, the applicant states that the temporary generator will still comply with the maximum allowable daytime noise level of 65 dBA per the ordinance. The generator will be located 253 feet away from the southern property line that abuts the nearest residential uses. At this distance, the temporary generator will not exceed 65 dBA. The generator is proposed to be located in a parking strip adjacent to the driveway entrance along Valley Green Drive and will temporarily reduce the site's parking by 10 parking spaces. Apple has reviewed alternative locations less visible from the street frontages; however, any other locations than the proposed location are either equally visible along Beardon Avenue, or are closer to surrounding residential uses. Staff has added a condition of approval that will require the removal of the temporary generator no later than 30 days from the effective approval date of this temporary use permit. ACTION The Director of Community Development deems the temporary use permit to install a temporary generator on site as minor, and approves the temporary use permit subject to the following condition of approval: 1. The temporary generator and all associated equipment shall be removed from the site no later than 30 days from the effective approval date of this permit. This approval is granted on April 28, 2010. Please note that an appeal of this decision can be made within 14 calendar days from the approval date. The fourteen calendar day appeal period expires on May 12, 2010. If an appeal is filed, a public hearing will be scheduled before the Planning Commission. If no appeal is filed, the director's minor modification becomes effective on May 13, 2010. Enclosure: Project Description Letter Plan Set G: � Planning � PDREPORT \ blRreports � 2010 � DIR-2010-13.doc March 12 Zo i a � £`�.,,��.,:. 1VIs. Aki Handa Community Develaprnent Department , City of Cupertino 10300 Torre Ave Cupertina, CA 95014 ; Re: Building Dept Permit Application 09120110 and Temporary Use Permit Application ' for Apple Facility at 20740 Valley Green Drive, Cupertino Dear Ms. Honda, Apple Inc. is requesting a temparary use permit to allow the installation of a temporary diesel generator at its facility at 24740 Valley Green Drive, Cupertino. The facility houses a data center that performs business critical dafia processing for the corparation. Any interruption of power to the computer equiprnent would have serious consequences to our business. Because of this, we maintain a high standard for maintenance of the electrical and mechanical equipment that serves this facility. Part of that maintenance program includes a thoraugh inspection of the main electrical switchgear every 5 years. In order to perfarm the inspection the switchgear rnust be de-energized by interrupting the incoming utility power. The building's e(ectrical system is designed to allow connection of a temporary generator that can carry the building load during these inspections. We are planning ta perform this 5 year inspection by about mid-April. The exact date is subject to weather, any extraordinary business activity, and availability of the technicians to perform the inspection. Because the exact date for completion is subject to change, we are requesting permission to have the generator on site until the end of April. We will, of course, remove the generator as soon as our maintenance work is completed. The generator is a portable, t� mounted, generator specifically constructed for temporary installatians. As such it is fully contained and haused in a weather tight, sound reducing enclosure, with locking doors. It is also provided with monitorin� to detect any fuel leaks. I hope this answers the questions you raised in your email to me. If not, or if you require further information please call me at 408-974-$865. Yours truly, G�G,�` Art Osaki :,;,�,�,, Senior Engineer � _ � �� �,�- > ' � ; ��-s�t;z� , �;��}:-:: � ��� ..;r,�: �::���: . _ ... D�R-;�oro _ !3 ��:<: � ���� . � �. � �: �:�n� �3,:> , , ..:zr�� . �-,��-. n . � . , , . ��� ��ffl �.: , ,:�, �� .. � .. . � � . s . � ' �C�2Q�0 RENTAL � � � STANC)BY �t�at� kW : . . _ _ F�F�IME � 825 kVtC G � '� � . . P�llt/E R IV�� D U L.E , ������ �o�so Hz Mi3{P 4 � ....... +� i "�. �MtW � .. , _ ;,. � -- ---___......._ Standt�y Nrirtu, Freque�cy i Vaftagc kW (kV.A) kW (kVA) 6Q _ d80i277V 2000 (25�U) _. 1825 (22fl1} , 50 ' 40f)V 1�tq0 {1800)� -- 1310 (1638} Irn�ge showr� may r,ot , f@FI4Cl �iGlU81 F)AL ' FEATURES EPA TIER 2 and CARB certified for nornroad mot�if� CATERPII.LAFt COOLfNG SYSTEM �pplications. Factory designed, certified prototype Sixed compatihle to ratiny with energy efficiene tesleri with tarsional analysis. 1'roduction tested fan ��nd cor�. ar�d delivered in a�ackage thai is ready to �ie connected to yo��r �uel anci powc;r lin�s, � CATERPILLAR SWITCHGEAR S�i�ported 100°/d t�y your c aterpillar° dQal�r with providcs single unit anc�lar multi-unitlukility warranty on parts and labr�r. �xtended w�arranty p�ralleling companents. Standby loaci senselload available in same areas. The generator set is �tPmand, impc�rt, export, and b�se load m�des. ciesign�d and manufactured in an ISO 9001:2000 Comes standard with Basler Utility Multi-function ' cdmpliant �acility. Generator set anci components �{elay IPS-1U0. ' rneet ar exceed the folfowing specifications: ' AS1359, AS2789, ABGSM TM3, BS4999, DlN6271, DiN62£i4, CGSA'{t11!? JEM1359, IEC 34/1, EXCLUSIV� C�ITERPILIAR DIGlTAL VfJLTAG� 15C}�i�)�ita/1, ISO$528, NEMA MG1-22 REGULATOR (CpVR) Threc-phase sensing and acijustable Vc�lts-per- CATEF2�'ILLAR SR�B GEN�RATOR H�rtz regulatian give precise control, excellent Single bt aring, wye-connected, stacic r�gulated, ���r.k loaciing, arid constar7t. voltaye in the norr�i31 brushl�ss permar�cr�t ir��gn�t e�xcited generacor operating r�t�ge. designed to match the performanc� and outpul �NVIRQNMENTALLY FRIFNDLY characterist€cs oC th�: Gaterpillar diesc�i �:r��in� driving it. 110% spill containment o� anhoard enc�ine fluids. R�LIABLE, FUEL EFFfCIENT DIESFL ENGINE SQUND ATTENUATFD C(�N7AINER , 7he camp�ct, four-strake-cycfe diesEl engine For ease of transportati�n and protectian. cambin�s durability v��ith �nir�imurn w�ight while Meets 75 dB(A) at 5u ft or below per SAE J1C}74 , pravicling dependability ar�d economy. The fuel rrieasurement procedure at 110% prim�; load. system aperat�s c�n a variety of fuels. D I� -��►o "I � . k � ��a --r� �� j " ':�1�. 1 , � V ���.- /l , ✓ ` �� �, - ...___ ;EHES74u-61 U , APPLE INC 20740 VALLEY GREEN DRIVE CUPERTINO, CA 95014 � �� 0 � � a p Accessible Parking �' � � o 0 0 o w � �� , , � � � 7 � � L 0 �+ X W \ � � � � � W �� � 0 ❑� �� � V Entry/Exit �'� O Accessible Parking Entry/Exit �� �- U Accessible Parking � U �� � �`� � c� �Fti � O 'p/ li F � 0 n � T PG&E TRANSFORMER O � � � � � 4� {rt GENERATOR 2000kw TEMP GENERATOR H ft � � -- - c >, O �' � � O O O O w� O° O � O O K- RAIL (nP) �X W w 253 Ft Parking for building zoned ML 1 per 500 sqft. Re�uired Spaces Provided S�aces 44 55 4 HDCP 59 Total VICINITY MAP I�1�-�oro _13 �� � � 3 .* • � � � � � � ��X � ti ..►'2 f � 3' � �� �6+"� lil+ �-- --/o r °- .' . ;... �' . . . ;, _ ��..... � � � `� � r`5x �N 1' � , s - ....,,�' � R � f��� ; o _ g �s `�" �t�' � � ` . �� � i.�. .