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HomeMy WebLinkAbout2304 Easton Drive - ResolutionRECORDIN'G REQUESTED BY: Planning Department City of Burlingame WHEN RECORDED MAIL T0: COMMUNITY DEVELOPMENT DEPARTMENT CITY OF BURLINGAME 501 PRIMROSE ROAD BURLINGAME, CA 94010 Resolution IVo. 27-2013 2315 EAST'ON DRIVE APN 027�-154-160 TITLE OF DOCUMENT I hereby certify this to be a full, true and correct copy of the do�ument it purports to be, the original of which is on file in my off ce. Date 2013 � a . F � ��a�;. � "' �- Ly.�., w, .%�%!�'�`�', � � �� �l�`�a�t` �� �; Gardiner, Planning Manager ��� �������� ;2:�a r«, ostza��s p� r��: �e� ��r-_ Cau�t of F'a�es 23 �o,cc�ci�d in �fFiciai R�cord:> �.,r�r*�r c,i ^aan i:�ale<� IbRark CtiurcPt ra aes r r,i�nat ..� �!� '�n� vrr� � i i I K II ( �' di�d ��� � �� 1' I� � �� ��, g �i: � � I����' � � ��', ���� ����� ��i� � �j;� � ��i,�� � �� � �;; ,� ;� , I!�'� � �� ��R ���a�a s i $, Fi i3�3 i„,, i�.i k h(; f> >) �5 �i �. S r� S* �� RESOLUTION APPROVING CATEGORICAL EXEMPTION, DESIGN REVIEW AND SPECIAL PERMITS RESOLVED, by the Planning Commission of the City of Burlingame that: WHEREAS, a categorical exemption has been proposed and application has been made for Desiqn Review and Special Permits for a new, two-story sinqle family dwellinq and attached ara e at 2315 Easton Drive, zoned R-1, Philip Kahn and Marilvn Elperin, 1451 Capuchino Avenue, Burlinqame, CA. 94010, propertv owners, APN: 027-154-160; WHEREAS, sai� matters were heard by the Planning Commission of the City of Burlingame on May 13, 2013, at which time it reviewed and considered the staff report and all other written materials and testimony presented at said hearing; NOW, THEREFORE, it is RESOLVED and DETERMINED by this Planning Commission that: On the basis of the Initial Study and the documents submitted and reviewed, and comments received and addressed by this commission, it is hereby found that there is no substantial evidence that the project set forth above will have a significant effect on the environment, and categorical exemption, per CEQA Article 19, Section 15303 (a), which states that construction of a limited number of new, small facilities or structures including one single family residence or a second dwelling unit in a residential zone is exempt from environmental review. In urbanized areas, up to three single-family residences maybe constructed or converted under this exemption, is hereby approved. 2. Said Design Review and Special Permits are approved subject to the conditions set forth in Exhibit "A" attached hereto. Findings for such Design Review and Special Permits are set forth in the staff report, minutes, and recording of said meeting. 3. It is further directed that a certified copy of this resolution be recorded in the official records of the County of San Mateo. Chairman I, �} m`VV�'.�+ +4;.�'�i`���' Secretary of the Planning Commission of the City of Bu I ngame, do hereby certify that the foregoing resolution was introduced and adopted at a regular meeting of the Planning Commission held on the 13`h dav of May, 2013 by the following vote: 2315 EASTON DRiVE - RESO 27-2013 AYES: Bandrapalli, Davis, DeMartini, Gaul, Sargent Terrones, Yie NOES: None ABSENT: None RECUSED: None t �� �'� � Secretary EXHIBIT "A" Conditions of approval for Categorical Exemption, Design Review and Special Permits. 2315 Easton Drive Effective May 23, 2013 1. that the project shall be built as shown on the plans submitted to the Planning Division date stamped May 1, 2013 sheets A0.0 through A3.3, PW.1, L1.0, L1.5, L1.6, L2.0, L2.5 and Topographic Survey Plan, with the amendment that the replacement tree at the front of the property listed as 36" box shall be 48" box size. 2. that any changes to building materials, exterior finishes, windows, architectural features, roof height or pitch, and amount or type of hardscape materials shall be subject to Planning Division or Planning Commission review (FYI or amendment to be determined by Planning staf�; 3. that any changes to the size or envelope garage, which would include adding or amendment to this permit; of the basement, first or second floors, or enlarging a dormer(s), shall require an 4. that the conditions of the Chief Building Official's March 7 and April 10, 2013 memos, the City Engineer's April 1, 2013 memo, the Fire Marshal's March 4, 2013 memo, the City Arborist's March 11 and April 12, 2013 memos, and the Stormwater Coordinator's April 18 and March 5, 2013 memos shall be met; 5. that the property owner shall be responsible for implementing and maintaining all tree protection measures as defined in the arborist report prepared by Ralph Osterling Consultants, Inc., dated October 9, 2012; 6. that any recycling containers, debris boxes or dumpsters for the construction project shall be placed upon the private property, if feasible, as determined by the Community Development Director; 7. that demolition for removal of the existing structures and any grading or earth moving on the site shall not occur until a building permit has been issued and such site work shall be required to comply with all the regulations of the Bay Area Air Quality Management District; 8. that prior to issuance of a building permit for construction of the project, the project construction plans shall be modified to include a cover sheet listing all conditions of approval adopted by the Planning Commission, or City Council on appeal; which shall remain a part of all sets of approved plans throughout the construction process. Compliance with all conditions of approval is required; the conditions of approval shall not be modified or changed without the approval of the Planning Commission, or City Council on appeal; 9. that all air ducts, plumbing vents, and flues shall be combined, where possible, to a single termination and installed on the portions of the roof not visible from the street; and that these venting details shall be included and approved in the construction plans before a Building permit is issued; 10. that the project shall comply with the Construction and Demolition Debris Recycling Ordinance which requires affected demolition, new construction and alteration projects to submit a Waste Reduction plan and meet recycling requirements; any partial or full EXHIBIT "A" Conditions of approval for Categorical Exemption, Design Review and Special Permits. 2315 Easton Drive Effective May 23, 2013 demolition of a structure, interior or exterior, shall require a demolition permit; 11. that the project shall meet all the requirements of the California Building and Uniform Fire Codes, 2010 Edition, as amended by the City of Burlingame; THE FOLLOWING CONDITIONS SHALL BE MET DURING THE BUILDING INSPECTION PROCESS PRIOR TO THE INSPECTIONS NOTED IN EACH CONDITION: 12. that prior to scheduling the foundation inspection, a licensed surveyor shall locate the property corners, set the building footprint and certify the first floor elevation of the new structure(s) based on the elevation at the top of the form boards per the approved plans; this survey shall be accepted by the City Engineer; 13. that prior to scheduling the framing inspection the project architect or residential designer, or another architect or residential design professional, shall provide an architectural certification that the architectural details shown in the approved design which should be evident at framing, such as window locations and bays, are built as shown on the approved plans; architectural certification documenting framing compliance with approved design shall be submitted to the Building Division before the final framing inspection shall be scheduled; 14. that prior to scheduling the roof deck inspection, a licensed surveyor shall shoot the height of the roof ridge and provide certification of that height to the Building Division; and 15. that prior to final inspection, Planning Division staff will inspect and note compliance of the architectural details (trim materials, window type, etc.) to verify that the project has been built according to the approved Planning and Building plans. n�...x .�� � �. _ ��,.�, . ��. ��...,� �� w�.�,� Project Comments Date: April 10, 2013 To: � Engineering Division (650) 558-7230 X Building Division (650) 558-7260 � Parks Division (650) 558-7334 From: Planning Staff � Fire Division (650) 558-7600 � Stormwater Division (650) 342-3727 � City Attorney (650) 558-7204 Subject: Request for Design Review and Special Permits for a ne�, two-story single family dwelling and attached two-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-160 Staff Revie�r: No further comments. �II condition� of approval as stated in the review dated 3-7-2013 will apply to this �roject. Reviewed �. .�..� . mxi e.� �, � �..:,� �» ew �, �,��� .,�,� � �. w ��� �, �,� � Project Comments Date To: From: March 4, 2013 � Engineering Division (650) 558-7230 X Building Division (650) 558-7260 0 Parks Division (650) 558-7334 0 Fire Division (650) 558-7600 � Stormwater Division (650) 342-3727 0 City Attorney (650) 558-7204 Planning Staff Subject: Request for Design Review and Special Permit for a new, two-story single family dweliing and attached two-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-160 Staff Review: March 4, 2013 1 J On the plans specify that this project will comply with the 2010 California Building Code, 2�10 California Residential Code (where applicable), 2010 California Mechartical Code, 2010 California Electrical Code, and 2010 California Plumbing Code, including all amendments as adopted in Ordinance 1856-2010. Note: If the Planning Commission has approved the project prior to 5:00 p.m. on December 31, 2010 then the building permit application for that project may use the provisio�s found in the 2007 California Building Codes including all amendments � a,s adop�ed in Ordinance 1813. 'f 2`) fJn the plans provide a copy of the GreenPoints checklist for this project at full �� scale. 3) Specify on the plans that this project will comply with the 2008 California Energy Efficiency Standards. Go io http://www.energy.ca.qov/title24/2008standards/ for publications and details. 41 Place the following information on the first page of the plans: "Construction Hours" Weekdays: 7:00 a.m. — 7:00 p.m. Saturdays: 9:00 a.m. — 6:00 p.m. Sundays and Holidays: 10:00 a.m. — 6:00 p.m. (See Cifiy of Burlingame Municipal Code, Section 13.04.100 for details.) 5) On the first page of the plans specify the following: "Any hidden conditions that require work to be performed beyond the scope of the building permit issued for these p6ans may require further City approvals including review by the Planning Commis�ion." The building owner, project designer, and/or contractor must submit a Re��ision to the City for any work not graphically illustrated on the Job Copy of the plans prior to performing the work. 6) Anyone who is doing business in the City must have a current City of Buriingame business license. 7) Provide fully dimensioned plans. 8) Provide a fully dimensioned site plan which shows the true property boundaries, the location of all structures on the �roperty, existing driveways, and on-site par-king. 9) Due to the extensive nature of this construction project the Certificate of Occupancy will be rescinded once construction begins. A new Certificate of Occupancy will be issued after the proje_ct has been finaled. No occupancy of the building is to occur until a new Certificate of Occupancy has been issued. 10)When you submit your plans to the Building Division for plan-review provide a completed Supplemental Demolition Permit Application. NOTE: The Demolition Permit will not be issued until a Building Permit is issued for the project. 11)Show the distances from all exterior walls to property lines or to assumed property lines 12)Show the dimensions to adjacent structures. 13)Q.btain a survey of the property lines. '14 ooms that can be used for sleeping purposes must have at least one window or door that complies with the egress requirements. Specify fhe location and the net clear opening height and width of all required egress windows on the elevation drawin_qs. 15)Indicate on the plans that a Grading Permit, if required, will be obtained from the Department of Public Works. 16)Provide guardrails at all landings. NOTE: All landings more than 30" in height at any point are considered in calculating the allowable lot coverage. Consult the Planning Department for details if your project entails landings more than 30" in height. 17)Provide handrails at all stairs where there are four or more risers. 18)Provide lighting at all exterior landings. NOTE: A written response to the items noted here and plans that specifically address items 2 and 14 must be re-submitted before this project can move forward for Planning Commission action. F1.�_._ __.._..� r Reviewed by�` '; --`� i, Date: 3-7-2013 .. �, .� � Project Comments Date: March 4, 2013 To: X Engineering Division � Fire Division (650) 558-7230 (650) 558-7600 � Building Division � Stormwater Division (650) 558-7260 (650) 342-3727 � Parks Division � City Attorney (650) 558-7334 (650) 558-7204 From: Planning Staff Subject: Request for Design Review and Special Permit for a new, two-story sin�le family dwelling and attached two-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-1611_ Staff Revie�v: March 4, 2013 1. Se� attached review comments #1, 2, 5, 14, 18, 19 and 20. 2. Sewer backwater protection certification is required. Contact Public Works — Engineering Division at (650) 558-7230 for additional information. 3. Applicant is advised to call City Arborist regarding potential relocation of sidewalk area around trees in the planter strip. Reviewec[ by: V V Date: 4/01 /2013 PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION PLANNING REV�W COMIVVI�NTS The fol'uowing requirements apply to the project 1 2 3 0 rw��-�,y�, � ��� � Project Name: � �vU,���% �31��-4+'+ � Project Address: '� l� �``�� �_ A properiy boundary survey shall be preformed by a licensed land surveyor. The survey sha11 show all property lines, property corners, easements, topographical features and utilities. (Required prior to the ouilding permit issuance.) �'7Lt���l+r� f' ��,� --f� ��C�� I�� � �Id( C'���� L,?m-k� esiuf�%�;� . The site and roof drainage shall be shown on plans and should be made to drain towards the Frontage Street. (Required prior to the building permit issuance.) The applicant shall submit project grading and drainage plans for approval prior to the issuance of a Building permit. The project site is in a flood zone, the project shall comply with the City's flood zone requirements. 5 � A�an�itary sewer l�ateral is required for the project in accordance with tlie Ciiy's standards. 6. The project plans shall show the required Bayfront Bike/Pedestrian trail and necessary public access improvements as required by San Francisco Bay Conservation and IDevelopment Commission. 7. Sanitary sewer analysis is required for the project. The sewer analysis shall identify the project's impact to the City's sewer system and any sewer pump stations and identify mitigation measures. 8 Submit traffic trip generation analysis for the proj ect. 9. Submit a traffic impact study for the project. The traffic study should identify the project generated impacts and recommend mitigation measures to be adopted by the project to be approved by the City Engineer. 10. The project shall file a parcel map with the Public Works Engineering Division. The parcel map shall show all existing property lines, easements, monuments, and new property and lot lines proposed by the map. Page 1 of 3 U:\private development�PLANNING REVIEW COMI��NTS.doc PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION 11. A latest prelinvnary title report of the subject parcel of land sha11 be submitted to the Public Works Engineering Division with the parcel map for reviews. 12 Map closure/lot closure calculations shall be submitted with the parcel map. 13 The project shall submit a condominium map to the Engineering Divisions in accordance with the requirements of the Subdivision Map Act. 14 �_ The project sha11, at its -own cost, design and consiruct frontage public improvements including curb, gutter, sidewalk and other necessary appurtenant work. 15 The project sha11, at its own cost, design and construct frontage streetscape improvements including sidewalk, curb, gutters, parking meters and poles, trees, and streetlights in accordance with streetscape master plan. 16 By the preliminary review of plans, it appears that the project may cause adverse impacts during construction to vehicular traffic, pedestrian traffic and public on street parking. The project shall identify these impacts and provide mitigation measure acceptable to the City. 17 The project skall submit hydrologic calculations from a registered civil engineer for the proposed creek enclosure. The hydraulic calculations must show that the proposed creek enclosure doesn't cause any adverse impact to both upstream and downstream properties. The hydrologic calculations shall accompany a site map showing the area of the 100-year flood and existing improvements with proposed improvements. 18 ,�_ Any work within the drainage area, creek, or creek banks requires a State Department of Fish and Game Permit and Army Corps of Engineers Permits. 19 �_ No construction debris shall be allowed into the creek. 20 _� The project sha11 comply with the City's NPDES permit requirement to prevent storm water pollution. Z1 The project does not show the dimensions of existing driveways, re- submit plaus with driveway dimensions. Also clarify if the project is proposing to widen the driveway. Any widening of the driveway is subject to City Engineer's approval. 22 The plans do not indicate the slope of the driveway, re-submit plans showing the driveway profile with elevations Page 2 of 3 U:\private development�PLANNING REVIEW COMI��NTS.doc PUSLIC WORKS DEPARTMENT ENGINEERING DIVISION 23 The back of the driveway/sidewalk approach shall be at least 12" above the flow line of the frontage curb in the street to prevent overflow of storm water from the street into private property. 2�. For the takeout service, a garbage receptacle shall be placed in front. The sidewalk fronting the store sha11 be kept c�tan 20' from each side of the property. 25. For commercial projects a designated garbage bin space and cleaning area shall be located inside the building. A drain connecting the garbage area to the Sanitary Sewer System is required. Page 3 of 3 U:�,private development�PLANNING REVIEW COMMENTS.doc Project Comments Date To: From March 4, 2013 � Engineering Division (650) 558-7230 � Building Division (650) 558-7260 0 Parks Division (650) 558-7334 � Fire Division (650) 558-7600 � Stormwater Division (650) 342-3727 0 City Attorney (650) 558-7204 Planning Staff Subject: Request for Design Review and Special Permit for a new, two-story single family dwelling and attached two-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-160 Staff Review: March 4, 2013 Provide a residential fire sprinkler throughout the residence. 1. Provide a minimum 1 inch water meter. 2. Provide backflow prevention device/double check valve assembly — Schematic of water lateral line after meter shall be shown on Building Plans prior to approval indicating location of the device after the split between domestic and fire protection lines. 3. All sprinkler drainage shall be placed into landscaping areas. 4. �rawings submitted to Building Department for review and approval shall c8early indicate Fire Sprinklers shall be installed and shop drawings �hall be approved by the Fire Department prior to installation. Review�d by: � Date: �' � � P-roject Comments Date: To: From: March 4, 2013 0 Engineering Division (650) 558-7230 0 Building Division (650) 558-7260 X Parks Division (650) 55&-7334 � Fire Division (650) 558-7600 � Stormwater Division (65Q) 342-3727 � City Attorney (650) 558-7204 Planning Staff Subje�t: Request for Design Review and Special Permit for a new, two-story single family dwelling and attached two-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-160 Staff REvuew: March 4, 2013 � Provide arborist report for 3 existing trees in front of house; Stone Pine, M�nterey Pine, & Gedar that are marked for removal. 2. If Public Works requires sidewalk replacement, Policy for Expanding Width of Planter Strip needs to be implemented. � Praject will remave and replace existing street trees and replace with three (3) ne�+trees from attached list. No fee permit will be required by Parks Division (��0-558-7330) for street tree removal. ( 4� I�entify tree species on landscape plan. �' Reviewed by: B Disco Date: 3/11113 CITY OF BURLINGAME - PARKS DIVISION, 558-7330 suRurv�nme S50 BURLINGAME AVENUE, BURLINGAME, CA 94010-2858 � OFFICIAL STREET TREE LIST - AUG 2010 TREECIIYUSR TREES TO BE USED UNDER PItIMARY UTILTTY LINES PICTURES OF TREES CANBE VIEWED ATxnvw burlingame.org UNDER THE PARKSAND RECREATIONDEPARTMENT Site Height at Min Botanical Name Common Name Locations Maturit S acin Description Acer buergeranum Trident Maple Washnigton Park Rose Garden 20-25' 25' DECIDUOUS: Moderlte grov✓tl�; roundish crown; glossy, three- lobed leaves; f111 color. * O Acer rubnun Red Mapie 1450 Capucluno 40-50' 35' DECIDUOUS: Fast growlli; lobed, greeii leaves; brilliant fall color Geijera parviflora Australian Willow Wells Fargo Batilc (Broadway), 117 25-30' 30' EVERGREEN: Moderate growth; grace£ul brancl�es; fine textured Ba swater leaves� est free. O Gingko biloba Maidenhair tree 405, 409 Block Bayswater Ave, 30-50' 40' DECIDUOUS: Slow growth; fan shaped leaves turn yello�� in fall; 1240 Cabrillo s reldin , almost mnbrella form. Koelreuteria bipnmata Chinese Flame Tree 209 Victoria, 1149 Balboa 20-35' 35' DECIDUOUS: Slow to moderate growth; clusters of yellow flo���ers; leaves vellow in fall, dro late. Koelreuteria paniculata Golden Rain Tree 1528 Howard 20-35' 35' DECIDUOUS: Slow to moderate growth; yellow flowers; leaves reddish in s rin , dull- een in swruuer. Lagerstromia indica Crape Myrtle Pershing Park, 1325 Drake 20-30' 25' DECIDUOUS: Moderate gro���th; spriug foliage light green dnged bronze red; red flowers Jul�-September; yello�i� fall color. Magnolia grandiflora Magnolia `St. Mary' 1700 Sherma�i 20-�0' 25' EVERGREEN: Moderate to fAst gro«�th; �vhite flo�}�ers; similar to Southeni Maguolia, but smaller. (*Requires 6' wide & oaer planter sh�i . Ma}�tenus boaria MayCeix Tree 900 Morreli 20-40' 25' EVERGREEN: Slow to moderate groc�rth; pendulous graceful bruiches. O Pistacia chinensis Chinese Pistache 270� Easton, 121 Costa Rica Ave 30-40' 40' DECIDUOUS: Moderate growth; dark green leaves, brilliaxit fall color. Pittosporum undulatum Victorian Box 1201 & 1230 Biulingame Ave 30-40' 40' EVERGREEN: Moderate growNi; fragrant white flowers glossy leaves • round he�ded. � O Plattunts acerifolia London Plane 603 PI}rnouth 40-60' 45' DECIDUOUS: Past gro�th; large, lobed, maple like leaves; sheds S camore old bark: new Uark smooth, cream colored. Pnmus cerasifera Purple Leaf Pliun 1320 L'uicoln, Village Park 20' 15' DECIDUOUS: Moderate growih; coppery leaves; light pn�k flowers Eastmoor side, 1320 Lincoln Ave in sprn�g Pyrus calleryana Flowering Pear 1617 Howard, 2112 Adeline 25-35' 25' DECIDUOUS: Fast growth; upright fonn; masses white flo���ers in `Aristocrat' s rin , red leaves in fall. Sapium sebiPerum Chinese Tallow 2009 Deverawc Drive 35' 40' DECIDUOUS: Moderate to fast growth; dense, rouud crown; outstandin fall color * Planter width musC be at least 48" � City recommended trees to nicrease the Urban Forest Canopy Pro�ect Cc�mments Date: To: F�om: March 4, 2013 � Engineering Division (s�o) s�s-72so � Building Division (650) 558-7260 X Parks Division (650) 558-7334 � Fire Division (650) 558-76(30 � Stormwater Division (650} 342-3727 � City Attorney (650) 558-7204 Planning Staffi Subjecf: Request for Design Review and Special Permit for a new, two-story single famify dwelling and attached twa-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-160 Staff Review: March 4, 2013 � Provide arborist report far 3 existing trees in front of house; Stone Pine, Monterey Pine, & Cedar that are marked for removal. 2. If Public Works requires sidewalk replacement, Policy for Expanding Width of Planter Strip needs to be implemented. � Project will remove and replace existing street trees and replace with three (3) ne�nr trees from attached list. No fiee permit will be required by Parks Division (650-558-7330) for street tree removal. . � ld'entify tree species on landscape plan. \_J _ j� ��e�! �^ �t r.2�yr h�-e� �aY vc�-n.� a�c� o�' %"nr.e. �/ ��p�� Pr,.c. , 7—�ez.��3 �ebd� r�av, I���{ S� �'r� , � ��.� �k.e, 2 . PYo uo2e �'ket �ice /.�-� �� -�Cn T-et � �wvacp °�j C'9�s f ��k� - C� � rLru �-r��r/ f'�. e�c . Reviewed by: B Disco GLS /KG�c�� [�' Qvborrs� ��"►"�" c�a� � � 0� �+ � cc�l p� %�- �(l`��3 Date: 3/11 i13 Project Comments Date: �� From: April 10, 2013 � Ergineering Division (650) 558-7230 � Building Division (650) 558-7260 � Parks Division (650) 558-7334 � Fire Division (650) 558-7600 �'Stormwater Division (650) 342-3727 � City Attorney (650) 558-7204 Planning Staff Subject: Request for Design Review an� Special Permits for a new, two-story single family dwelling and attached two-car garage at 2315 East�n Drive, zoned R-1, APN: 027-154-160 Staff Revi�w: 1) The Stormwater Requirements Checklist has been filled out and returned. It indicates that the project does trigger the new stormwater requirements. These requirements appear to be satisfied by measures indicated on the checklist (c., d., e.) and on th� plans. 2) The checklist indicates that there is no Architectural Copper to be used in the project however there is a copper roof and it is stated on the plans that the drain w�ter is to be routed to landscaping. The Architectural Copper Best Management Practices (BMP) sheet is provided on page PW.1 of the plans. Fo� assistance please contact Stephen D. at 650-342-3727 Reviewed by: SD Date: 4/18/2013 Project Comments Date: March 4, 2013 To: � Engineering Division (650) 558-7230 � Building Divisio;-; (650) 558-7260 � Parks Division (650) 558-7334 0 Fire Division (650) 558-7600 � Stormwater Division (650) 342-3727 0 City Attorney (650) 5�8-7204 From: Planning Staff _ Subject: Request for Design Review and Special Permit for a new, two-story single family dwelling and attached two-car garage at 2315 Easton Drive, zoned R-1, APN: 027-154-160 Staff Review: March 4, 2013 �Effective-Dec 1, 2012, stormwater requirements are required to be implemented at tand-alone single family home projects that create and/or replace 2,500 sq.ft. or more of impervious surface. These requirements are in addition to any City requirements. To determine if �his project is subject to those requirements complete and return the attached "Stormwater Checklist for Small Projects." For additional information about these requirements please refer to the attached flyer "New Stormwater Control Requirements Effective 12/1/12" and by visiting the San Mateo County Stormwater Pollution Prevention Program (SMCWPPP) website at: hftp://flowstobay.org/bs_new_development. php#flyers 2) Any construction project in the City, regardless of size, shall comply with the City's NPDES (stormwater) permit to prevent stormwater pollution from construction activities. Project proponent shall ensure all contractors implement appropriate and effective BMPs during all phases of construction, including demolition. When submitting plans for a building permit include a list of construction BMPs as project notes on a separate fuil size plan sheet, preferably 2' x 3' or larger. Project proponent may use the attached Construction BMPs plan sheet to comply with this requirement. Electronic file is available for download at: http://www.flowstobay.org/documents/business/construction/Countywide_Program_B MP_Plan_Shee� Jun2012.pdf 3) Best Management Practices (BMPs) requirements apply on any projects using architectural copper. To learn what these requirements are, see attached flyer "Requirements for Architectural Copper." Electronic file is available for download at: http://www.flowstobay.org/documents/municipalities/nd/Materials/2012%20Materials/ Architectura�_copper_BMPs_FINAL.pdf For assistance please contact Stephen D. at 650-342-3727 Reviewed by: SD J(� Date: 3/5/13 v � :�. SAN MATEO COUNiYWIDE Waxer�'ollu;ion PreveMion Program � Stormwater Checklist for Small Projects Municipal Regional Stormwater Permit (MRP) Order No. R2-2009-0074 ; Ord'er No. R2-2011-0083 NPDES No. CAS612008 City of Burlingame — Office of Environmental Compliance 1103 Airport Bivd Office: (650) 342-3727 Fax: (650) 342-3712 Complete this form for individual single family home projects of any size, other projects that create and/or replace less than 10, 000 square feet of impervious surfiace, and projects in the following categories that creafe and/or replace Iess than 5, 000-square feet of impervious surface: restaurants, retail gasoline outlets, auto service facilities1, and paricing lots (stand-alone or part of another use). A. Project Information A.1 Project Name: q,2 Project Address: A.3 Project APN: B. Select Appropriate Site Design Measures 6.1 Does the project create and/or replace 2,500 square feet or more of impervious surfacez? ❑ Yes ❑ No ➢ If yes, and the project will receive final discretionary approval on or after December 1, 2012, the project must include one of Site Design Measures a through f.3 Fact sheets regarding site design measures a through f may be downloaded at hitp://www.flowstobay.org/bs new development.php#flyers.. ➢ If no, or the project will receive final discretionary approval before December 1, 2012, the project is encouraged to implement site design measures4, which may be required at municipality discretion. Consult with municipal staff about requirements for your project. B.2 Is the site design measure included in the project plans? a. Direct roof runoff into cisterns or rain barrels and use rainwater for irrigation or other non-potable use. b. Direct roof runoff onto vegetated areas. c. Direct runoff from sidewalks, walkways, and/or patios onto vegetated areas. Plan Yes No Sheet No. ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ d. Direct runoff from driveways and/or uncovered parking lots onto vegetated areas. e. Construct sidewalks, walkways, and/or patios with permeable surfaces. f. Construct bike lanes, driveways; and(or uncovered parking lots with permeable surfaces. g. Minimize land disturbance and impervious surface (especially parking lots). ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ h. Maximize permeability by clustering development and preserving open space. i. Use micro-detention, including distributed landscape-based detention. j. Protect sensitive areas, including wetland and riparian areas, and minimize changes to the natural topography. k. Self-treating area (see 5ection 4.2 of the C.3 Technical Guidance) ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ I. Self-retaining area (see Section 4.3 of the C.3 Technical Guidance) J ❑� m. Plant or preserve interceptor trees (Section 4.1, C.3 Technicai Guidance) 1 See Standard Industrial Classification (SIC) codes here. Z Complete the C.3/C.6 Development Review Checklist if the project is not an individual single family home, and it creates and/or replaces 10,000 square feet or more of ionpervious surface; or if it is a restaurant, retail gasoline outlet, auto service facility, or parking lot project that creates and/or replaces 5,000 square feet or more of impervious surface. ' See MRP Provision C.3.i. 4 See MRP Provision C.3.a.i.(6). 1 Approved December 4, 2012 Stormwater Checklist for Small Projects C. Select appropriate source controls (Encouraged for all projects; may be required at municipal discretion. Consult municipal staff.$) Arethese Featuresthat features in require source project? control measures �� �� �� �� ��■ Storm Drain Floor Drains Parking garage Landscaping ❑ ❑ Pool/Spa/Fountain ❑ ❑ Food Service Equipment (non- residential) ❑ � ❑ � Refuse Areas � � Outdoor Process Activities � ❑ ❑ Outdoor Equipment/ Materials Storage ❑ ❑ Vehicle/ Equipment ❑ ❑ Vehicle/ Equipment Repair and Maintenance ❑ ❑ Fuel Dispensing Areas ❑ I ❑ � Loading Docks ❑ � ❑ � Fire Sprinklers Source control measures (Refer to Local Source Control List for detailed requirements) • Mark on-site inlets with the words "No Dumping! Flows to Bay" or equivalent. • Plumb interior floor drains to sanitary sewer [or prohibit]. • Plumb interior parking garage floor drains to sanitary sewer.s • Retain existing vegetation as practicable. • Select diverse species appropriate to the site. Include plants that are pest- and/or disease-resistant,-drought-tolerant, andlor attract beneficial insects. • Minimize use of pesticides and quick-release fertilizers. • Use efficient irrigation system; design to minimize runoff. • Provide connection to the sanitary sewer to facilitate draining.s Provide sink or other area for equipment cleaning, which is: • Connected to a grease interceptor prior to sanitary sewer discharge.s • Large enough for the largest mat or piece of equipment to be cleaned. • Indoors or in an outdoor roofed area designed to prevent stormwater run-on and run-ofF, and signed to require equipment washing in this area. • Provide a roofed and enclosed area for dumpsters, recycling containers, etc., designed to prevent stormwater run-on and runoff. � Connect any drains in or beneath dumpsters, compactors and tallow bin areas serving food service facilities to the sanitary sewer.� • Perform process activities either indoors or in roofed outdoor area, designed to�revent stormwater run-on and runoff, and to drain to the sanitary sewer.s • Cover the area or design to avoid pollutant contact with stormwater runoff. • Locate area only on paved and contained areas. • Roof storage areas that will contain non-hazardous liquids, drain to sanitary sewers, and contain by berms or similar. • Roofed, pave and berm wash area to prevent stormwater run-on and runoff, plumb to the sanitary sewers, and sign as a designated wash area. • Commercial car wash facilities shall discharge to the sanitary sewer.s • Designate repair/maintenance area indoors, or an outdoors area designed to prevent stormwater run-on and runoff and provide secondary containment. Do not install drains in the secondary containment areas. • No floor drains unless pretreated prior to discharge to the sanitary sewer. 6 • Connect containers or sinks used for parts cleaning to the sanitary sewer. 6 � Fueling areas shall have impermeable surFace that is a) minimally graded to prevent ponding and b) separated from the rest of the site by a grade break. ■ Canopy shall extend at least 10 ft in each direction from each pump and drain away from fueling area. • Cover andlor grade to minimize run-on to and runoff from the loading area. � Position downspouts to direct stormwater away from the loading area. • Drain water from loading dock areas to the sanitary sewer.s • Install door skirts between the trailers and the building. • Design for discharge of fire sprinkler test water to landscape or sanitary sewers is source control measure included in project plans? Plan Yes No Sheet No. ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Miscellaneous • Drain condensate of air conditioning units to landscaping. Large air ❑ ❑ Drain or Wash conditioning units may connect to the sanitary sewer 6 Water • Roof drains shall drain to unpaved area where practicable. • Drain boiler drain lines, roof top equipment, all washwater to sanitary sewers. ❑ ❑ Architectural • Drain rinse water to landscaping, discharge to sanitary sewer6, or collect and ❑ ❑ Copper dispose properly offsite. See flyer "Requirements for Architectural Copper." 5 See MRP Provision C.3.a.i(7). 2 Approved December 4, 2012 Starmwater Checklist for Small Projects D. Implement construction Best Management Practices (BMPs) (Required for all projects.) D.1 Is the site a"High Priority Site"? (Municipal staff will make this determination; if the answeris yes, Yes ❑ No ❑ the project will be referred to �ensfruction site inspection s+aff for monthly stormwater inspections during the wet season, October 1 through Apri130.) •"High Priority Sites" are sites that require a grading permit, are adjacent to a creek, or are otherwise high priority for stormwater protection during construction per MRP Provision C.6.e.ii(2). D.2 All projects require appropriate stormwater BMPs during construction, indicate which BMPs are included in the project, below. Yes No Best Management Practice (BMP) ❑ ❑ Attach the San Mateo Countywide Water Pollution Prevention Program's construction BMP plan sheet to project plans and require contractor to implement the applicable BMPs on the pian sheet. ❑ ❑ Temporary erosion controls to stabilize all denuded areas until permanent erosion controls are established. ❑ ❑ Delineate with field markers clearing limits, easements, setbacks, sensitive or critical areas, buffer zones, trees, and drainage courses. ❑ ❑ Provide notes, specifications, or attachments describing the following: • Construction, operation and maintenance of erosion and sediment controls, include inspection frequency; • Methods and schedule for grading, excavation, filling, clearing of vegetation, and storage and disposal of excavated or cieared material; • Specifications for vegetaYive cover & mulch, include methods and schedules for planting and fertilization; • Provisions for temporary and/or permanent irrigation. ❑ ❑ Perform clearing and earth moving activities only during dry weather. ❑ ❑ Use sediment controls or filtration to remove sediment when dewatering and obtain all necessary permits. ❑ ❑ Protect all storm drain inlets in vicinity of site using sediment controls such as berms, fiber roils, or filters. � � Trap sediment on-site, using BMPs such as sediment basins or traps, earthen dikes or berms, silt fences, check dams, soil blankets or mats, covers for soil stock piles, etc. ❑ ❑ Divert on-site runoff around exposed areas; divert off-site runoff around the site (e.g., swales and dikes). ❑ ❑ Protect adjacent properties and undisturbed areas from construction impacts using vegetative buffer strips, sediment barriers or filters, dikes, mulching, or other measures as appropriate. ❑ ❑ Limit construction access routes and stabilize designated access points. ❑ ❑ No cleaning, fueling, or maintaining vehicles on-site, except in a designated area where washwater is contained and treated. ❑ ❑ Store, handle, and dispose of construction materials/wastes properly to prevent contact with stormwater. ❑ ❑ Contractor shall train and provide instruction to all employees/subcontractors re: construction BMPs. � � Control and prevent the discharge of all potential pollutants, including pavement cutting wastes, paints, concrete, petroleum products, chemicals, washwater or sediments, rinse water from architectural copper, and non-stormwater discharges to storm drains and wate�courses. Name of applicant completing the Signature: Date: E. Comments (for municipal staff use only): F. NOTES (for municipal staff use oniy): Section A N Section B " Any connection to the sanitary sewer system is subject to sanitary district approval. � Businesses that may have outdoor process activitieslequipment include machine shops, auto repair, industries with pretreatment facilities. Approved December 4, 2012 Stormwater Checklist for Small Projects Section C Section D Approved December 4, 2012 �;S"��tts;. '�e�; Muejp�a.. SdN Idl�TEO COUNTYWIOE Water Pollution Prevention Program Llean Water. Nealchy Comrtiunity. Construction Best Management Practices (BMPs) Construction projects are required to implement the stormwater best management practices (BMP) on this page, as they apply to your project, all year long. D�Iaterials & VI'aste Management IYnn-HazvrAuus Maicrials ❑ Bcnn m�d cm'er stockpiles of wnA, dirt or olhcr constmction inamrial �eiih �oms n�Lcn r�in is Carwas� or if�mi acliccip bcing used n�ilhin 1-0 dars O Usc (bm don c u� ertisc) mdaimcd �.�alcr far dus� coniral. HuarAous Mnlerinls a�� i an n,�a�ao��: m,����is a��d i�a.�mo��s.. �s��s cs���i, ns pesticides, poin�s, ihinncrs. soh'cnis, fwl, oil, ond antitrecm) in cardoncc �vilh cily, caunry•, slvle and Cedrrul tcF��lalions. ❑ Slo�c I�urardo�is malcrinis and �vuslcs in ��'aMr ligl�l co��tTincrs, siorc � appmpriom secundam cmnninmm�t, and covenhmn at ihe end af " �orA A.ry or duriny �rct wcalhcr ornhcn rain is forccnsl. ❑ f Ilo.v inmmfnclumr's appiicmim� instmaions for haaordous rinls onA bc cnmfnl nol m nsc mare Wan ncccssnn Do not i��'Iv chcnucals mldoors �vimn rain ¢lorewn ��idi n 2-0 honrs. �PP ❑ Arranyc for appropnale d�sposal oColl 6mardous �vaslcs Wavle �Lmngemcnl ❑ Cuv astc disposol conlaincrs sccurclr �vilh mtps nl thc cnd of �arA dnY �nd dnruig rvct �venthcr. � CI ccA �vns�e disposnl conininers frequcmly far Ical's nnd lo meAc eihc� �e�llcd Ne�erhosedo��nnd�m ronihc sur ' o ipstc i�sVucllon s�le. ❑ Clcon or repiace ponnblc roilets. nnd inspect ILem fmqucmip far Icaks and spills. ❑ Dispose ofnll nnslcs nnd dcbris propcdp. Recycle marorinis nnd vnslcs Ihal can Lc rccr'cicd (snch os aspholl, concrdc. oggrt6��c besc mnlcriNs, o�wd gyp bonrd, pipc, etcJ ❑ Dispose of liquid residnes from poims, tl�im�c s. sakents, glues, and dcm�iny Mids ns Laznrdous wnslc. c��������ro� c�������:,��a r�.�mm�� ❑ EslnblisL ond inoinmin clTcctiec pcnmcicr canlmis and sinbili�ec nIi nstr�mtian cnlrnnces nnd c.cils m sn�cicnll�� con WI crosion anA acdimcnl Aischargcs Gam sim and tmcking olT silc. ❑ Srvccp nr e slree� tmcAing in nedin�cly and scenm scdimcro sourtc ro�prcvcnt funhcr tmcking. Ncccr hosc do�cn streets �o ���a,,,,� �,o�.,,,s. �quipment i�Ianagement & Spill Control `�� �y 8 � {'�� q ! �,,.¢ ' tC��' m,��om�:���� H„a rAd�mF ❑ Designnle on ereq filicd �ri0� nppropriale BMPs. Cor vehicle nnd equipmenl pnrking und stomge. ❑ Perform major moiwenance, repairjobs, and reM1icle nnd uqniP���em rvashing oRsilc. ❑ V rcfntlin6 0� veLicic muintenm¢e imist be donc �siic, �rork in a bemwdarca a���ny fmm sionn dmins ond m� n drip pmi big cnoupL lu collcct Iiuids. Recycicror disposc of Onids os haz�rdaus masre. ❑ If eeLicle arequipmm�l cleuning must be done ansite, clea witL .rmcr onlp in a bem�cd area ILnI �vill nol nllo�� Yaler to n��l inla g�iilers, strcets. slom� a�e� c�.r�o..;�«rs. ❑ Donoldcon�'chidcorcqnipm<ntonsilcusinysoops, soh�rna Ac �rcaser s enm 1 i n , s t c cn c t eic 6 ����6 om��� o Spill vrc�entian and Control ❑ Kce s ill clzam mamnal r p p p s( ups obsorbcnls, cic ) vuilaLlu at iLc conslruccion silc nt all limcs. ❑ Insp:.cl vdiicics and cquipmcnt frcqucntly f r nnA rcpair Icnks promplly. Usc dri0 pnns lo u�tch Ic�ks un(ilrepoirsn nadc. ❑ ClcannpspillscorlwksinuncJimclym�ddispascof cleonnp matcrials pmpcdy. ❑ Do nol Losc do�vn su� cev ��here Ilwds Lm�e spillcd. Usc dn• dconup mclhods (absor6cm nu��enals, co1 lincq anA/ar mps). ❑ Swccp np spillcd dm nmlcrinls immediamir. Do not uy ta �cnsL them mvnr �vi�i �vmcr, or bnry Ihcm. ❑ Clcan np spills on dirt azws by diKB���6 ��p and propcdv dispasing ofwnr.uninnkA soil. ❑ Reportsignifcantspillsimmedimelv.Yonarereqnired by lan• �o rcpor[ all sipnif eam refeaus of hnzardous molcnnis, including oil. To rcpon n spill: I) Diol 911 Cro�cnr lacal enrerpcncp msponse numbey 2) Cell Ilm mor's OFlice ofEmergency Semices Wanwig Ccnlet. (800) Si2-75j0 (2J honrs). Carthrvorlc & Cont�minated 9oils Paving/Asphalt Work -- -. � - p �� —a,.—�.....w , v - . N`p.� :� k- ��� ���--. �� Emsinn Cuntroi O Schednle gmding nnd eacm�alion o�ork for dp' rccvlLer only. ❑ Smbilize nll dennded orcas insmll nnd ain�ein Icm�wmn' crosion conlrols (such wnirol fnbric or bondcd fibcr � , n'�.�) unlil �regcm�ion is csmblishcd. ❑Secdorpinmeegcm onl'orerosion onlrol oii slapcs or �vlicrc coi�sVuclio�i is no�inuncdinlely plonncd. Sedimcnf Cuntml ❑ r�o«��5� �a�a� ��i�is. �u�r: a�«i« g s. m�ddmi niiha ratc iagec pprop 6hIPs suchas �ms�clba s fberrolls F 6. . bcn , etc ❑ P�mentsedm�en f' t mm migrni5C6 olTsitc bp insmlling and maimnining dimm�[ ontrols, such av lber rolls, sih fences, or sedimentbasins. ❑ Kccp cecavalcd snil an ILc silu whcrc it �vill nal collea into Ihc svect. ❑ Tmnsfer c�co� aled mamnols ro dump Inicks oit Ilm s�tc, nat m the slreel ❑ ConinminnlcdSoils ❑ lf nny of Ihc 1'ulla�rins candilim�s nrc observed, �est farcom;uninmian and onmct thc 2cgionnl Walcr Qnaliry Contml Buerd: ■ Onusnol soil condilions, discolora(ion, ■ Abo �duncd nndcq5mnnd wnks. ■ A6andoned rvells ■ Duricd barrels debris, or tmsh. ❑ Acoid paving ond senl coating in wel catLcr, orn��Lcn min is forecos� bcfarc Gcsh pavc cnl �u'ill6avc limc lo curc. ❑ Cavcrslom�dreininlclsm�dmmiholes �eLen appfying scal euai. luck w,il. sh�rt�• scal, fog senl, cm. ❑ Collwlnndrecycicornppraprialelp dispose ofe� ess abras rc g�avel or taz�d. Do NOT sivicep or �msh i� into snitcrs. ❑ Do not use �amer m wnsh da�rn Gesh asphal[ concrem pavcment. Sun'cutting & AtphaltlCuncmlc Rcmm�Hl ❑co�„ m«i�� o�n�R�aa�:m�o P dr.n utleis nhw cmm� � Ose f Iler 6 fa6nc calcL basin mlct fhcrs vel bngs ro I.eep shvn ovl of @c sto �dn�m s�slcin. ❑ Sho��el, abosorb. or vacmmi son•-cnt shirty and disposc oFall �vaslc ns swn osero� refnishcOinomlocolio�ornl �h cnd�oCendi �v rk da7' (whiclm� r is ncr!). ❑Ifm ctlstu tntcrsowlch nt�n Icnn m b '.c il ap m�mcdinlvly. Concrete, Gront & Mortar Application ❑ Sror co crew,gron[nndmorinrnndcr �son pailds m�d oony fmm dminn6e � n,es� �n,«���i� �����si ��<,�« «,�n a slam� dmin. ❑ Wosh onl concrcic equipmenUvucAs ottsiro o i n coNnined area, so Ihere no dischnrbe inta Ihe mtdcrh�ing soil i,o�n,f oundingarcas.Letwncrote ���T�a a�s�:� o�,s s,.�ns�. ❑ Collcc[Ihc�vaslurolcrfromwashing e�poscd agyrcga�e conemre and remove it for npproprinlc disposal otisilc. Dewntcring . J�� hw¢ j1;,. �' `; Y i� " � � l � ^`� ���y . . '"' lY . \� ❑ ERectivclp ma�mgc all nmron. all noR.��ilLin ihc si�e. and NI mnoRtlmt dischargcs from t6c silc. Divctl mnron �elcr fmm olTsuc enm• from all Awlvrbcd �rc rolhem•�secnsurecomplmnce. ❑ WI en dcrvnlerin6. ��olili� nnA obmin appmvnl fmm Ihe locnl mm�ieipalily befo�c discl�nrgins x'alcr lo n slrccl gul�cr r slom� drain. Filvation or divcrsion ��mngh a basin, IanA, or scdimcnt nnp ac be rcqnircd. ❑ In arcas ofknoe�n contaminnlioq �ating 's rcqnirecl prior m rense or discliarge of gmundo'alcr. Cansnl� �cilh tlic Enyincer la detcmiine �ehclher tes�inb is required anll i�o„ �o ��m��.e� ms��ns. co�na������a��a gmnndrvalcr must be Ircated or hnnled o6-site for proper disposal. Storm drain polluters may be liable for fines of up to $10,000 per day! Pain(ing & Paint Removal � � . qyr ��. , �" t �!: � 44 �1i `-�� �� ����. `J---_'' rH������; d�A��n � Ln�er cleun bn�sLes orn sc pa�N omomcrs uuo n simc4 6n«er, smnn dmm, or x rfecc wamrs ❑ Far rtnler bnscd pnmts, paint ai I bmshcs lo tLc celcnl passihlc. Rinsc tu �hc nnitap� u��e �c vou hm�e gnined pen onFromWelocal�rasiewater Imoi�nent fluthoritp. Necer ponr painl ❑ For oiI-based pain6, point ont brus6cs lo the ealent vossible :md cicnn wiHi lhiwrer solveut in a pmper cmva ncc Filmr.v�d sc Ihi�mcrs nnd soiccros'Disposc oF esidne mid nn rsnble ihumetlsohems as hnmrdous was�c. Pnin[ remornl a cne�„��m Pw��rc src�PNNs .�:�d�o ���a chips and d�rst fmm nmrinc painis ar paints conlaining Icnd or vibulyltin musl bc Ais ascd oCo La�r. 0 vdous �ostc ❑ ro��,� a� nnd dnst! m non harnNans ps dn smppmE and sand blosUng mm 6e �c In o 11 s� p p rco cmedmplasiicdmp cloihs m�d disposed ofns vosli. Landscape Materials ,;�`�t'i`�. -s lPa'�: �;�, ;, _ � \'T�`� `�; � ^�� `J ,�� �r� � �,1� . Je'y�.r _�.�,t'„w� . ❑ Connin smckpilcA I:�ndscnping mmcrinls bc slaring thcm undcr 6 rps �chcn ihcy urc �wt nnivclp 6cing nsed. ❑ Smla cmdiblc Inndscape mo�criol on palims. Covcror slom Ihcse malcriols o•hen Ihcy ore �wcactivcly bcing uscd or applicd ❑ Disconlinue npplirnfion ofany erodible londscapc mnlcrial �rilhin 2 dops befom a forecut rain crcnl or dirting wc[ n•eathcr. . �"��...r SAN HATF9 faut'TYWI�E Wat�r Potiution Preventian Pra�ram a�cnn wmec Nea�rny tommunhy. Requirements for Architectural Copper Protect water quality during installation, cleaning, treating, and washing! Copper from Buildings May Harm Aquatic Life Copper can harm aquatic life in San Francisco Bay. Water that comes into contact with architectural copper may contribute to irrrpacts, especially during installat��n, cleaning, treating, or washing. Patination solutions that are used to obtain the desired shade of green or brown typically contain acids. After treatment, when the copper is rinsed to remove these acids, the rinse water is a source of pollutants. Municipalities prohibit discharges to the storm drain of water used in the installation; cleaning, treating and washing of architectural copper. Use Best Management Practices (BMPs) The following Best Management Practices (BMPs) must be implemented to prevent prohibited discharges to storm drains. During Installation • If possible, purchase copper materials that have been pre-patinated at the factory. • If patination is done on-site, implement one or more of the following BMPs: o Dischargz the rinse water to landscaping. Ensure that the rinse water does not flow to the street or storm drain. Block off storm drain inlet if needed. o Collect rinse water in a tank and pump to the sanitary sewer. Contact your local sanitary sewer agency before discharging to the sanitary sewer. o Collect the rinse water in a tank and haul off-site for proper disposal. • Consider coating the copper materials with an impervious coating that prevents further corrosion and runoff. This will also maintain fhe desired color for a longer time, requiring less maintenance. During Maintenance Implement the following BMPs during routine mainfenance activities, such as power washing the roof, re-patination or re-application of impervious coating: • Block storm drain inlets as needed to prevent runoff from entering storm drains. • Discharge the wash water to landscaping or to the sanitary sewer (with permission from the local sanitary sewer agency). If this is not an option, haul the wash water off-site for proper disposal. Protect the Bay/Ocean and yourself! If you are responsible for a discharge to the storm drain of non- stormwater generated by installing, cleaning, treating or washing copper architectural features, you are in violation of the municipal stormwater ordinance and may be subject to a fine. Contact Information The San Mateo Countywide Water Pollution Prevention Program lists municipal sformwater contacts at www.flowstobay.orq (click on "Business", then "New Development", then "local permitting agency"). FINAL February 29, 2012 gutter and drainpipe. prohibited discharge. The wafer must be pumped and disposed of properly.