HomeMy WebLinkAbout1529 Bernal Avenue - Approval LetterCITY OF BURLINGAME
City Hall — 501 Primrose Road
Burlingame, California 94010-3997
June 25, 2014
Randy Grange
TRG Architects
205 Park Road, Suite 203
Burlingame, CA 94010
Re: 1529 Bernal Avenue
Dear Mr. Grange,
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COMMUNITY DEVELOPMENT DEPARTMENT
Planning Division
PH: (650) 558-7250
FAX: (650) 696-3790
Since there was no appeal to or suspension by the City Council, the June 9, 2014, Planning
Commission approval of your application for Design Review and Special Permit for a basement became
effective June 19, 2014. This application was for a new, two-story single family dwelling and detached
garage at 1529 Bernal Avenue, zoned R-1.
The June 9, 2014, minutes of the Planning Commission state your application was approved with the
following conditiar�:
that the project shall be built as shown on the plans submitted to the Planning Division date
stamped May 29, 2014 sheets A1.1 through A4.,1, L1.0, L2.0 and PW.1; and that the two
trees along the rear property line shall be a Quercus agrifolia (Coast Live Oak) and a
Pittosporum undulatum (Victorian Box) and shall be 24-inch box size when planted, as shown
on the Landscape Plan, sheet L1.0, date stamped May 29, 2014;
2
3
that the windows in the stair tower shall be revised as reflected on the 3-d images for the
project;
that the plant materials under the Red Oak tree in the front yard shall be revisited;
4. 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�;
5. that any changes to the size or envelope of the basement, first or second floors, or garage,
which would include adding or enlarging a dormer(s), shall require an amendment to this
permit;
6. that the conditions of the Building Division's March 31, 2014 memo, the Parks Division's April
7, 2014 rnemo, the Engineering Division's May 6, 2014 memo, the Fire Division's March 28,
2014 merno and the Stormwater Division's May 8, 2014 memo shall be met;
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June 25, 2014
1529 Bernal Avenue
Page 2
7. 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;
8. 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;
9. 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;
10. 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 anc!_a�proved in the construction plans before a Building
permit is issued;
11. 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
demolition of a structure, interior or exterior, shall require a demolition permit;
12. that the project shall meet all the requirements of the California Building and Uniform Fire
Codes, 2013 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
13. that prior to scheduling the framing inspection the applicant shall provide a certification by the
project architect or residential designer, or another architect or residential design
professional, that demonstrates that the project falls at or below the maximum approved floor
area ratio for the property;
14. 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;
15. 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;
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June 25, 2014
1529 Bernal Avenue
Page 3
16. 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
17. 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.
All site improvements and construction work will require separate application to the Building Department.
This approval is valid for one year during which time a building permit must be issued. An extension of
up to one year may be considered by the Planning Commission if application is made before the end of
the first year.
The decision of the Council is a final administrative decision pursuant to Code of Civil Procedure Section
1094.6. If you wish to challenge the decision in a court of competent jurisdiction, you must do so within
90 days of the date of the decision unless a shorter time is required pursuant to state or federal law.
Sincerely,
William Meeker
Community Development Director
c. Steven Crooks and Helen Miranda, property owners
1529 Bernal Avenue
Burlingame, CA 94010
Chief Deputy Valuation, Assessor's Office
(LOT 15 BLOCK 10 BURLINGHOME SUB RSM 9/49 50; APN: 026-034-050)
File
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Project Comments
Date:
To:
March 28, 2014
� Engineering Division
(650) 558-7230
0 Fire Division
(650) 558-7600
� Stormwater Division
(650) 342-3727
� City Attorney
(650) 558-7204
X Building Division
(650) 558-7260
� Parks Division
(650) 558-7334
From:
Planning Staff
Subject: Request for Design Review for a new, �rrvo-story single family
dwelling with a detached garage and a special permit for basement
ceiling height at 1529 Bernal Avenue, zoned R-1,
APN: 026-034-050
Staff Review: March 31, 2014
3}
4)
1) On the plans specify that this project will comply with the 2013 Califomia Building
Code, 2013 Califomia Residential Code (where applicable), 2013 California
Mechanical Code, 2013 California Electrical Code, and 2013 Califomia Plumbing
Code, including all amendments as adopted in Ordinance 1889. Note: If the
Planning Commission has not approved the project prior to 5:00 p.m. on
December 31, 2013 then this praject must comply with the 2013 California
Building Codes.
2) Specify on fhe plans that this project wiil comply with the 2013 Caiifomia Energy
Efficiency Standards.
Go to http://www.enerqv.ca.govltitle24/2013standards/ for publications and
details.
Specify that this project will comply with the 20Q8 Califarnia Energy Efficiency
Note: The California Building Standards Commission has delayed
implementaiion of the 2013 Energy Codes. if an application is subrnitted for this
project prior to July 1, 2014 then the project will be required to comply with the
2008 California Energy Efficiency Standards.
When plans are submitted for Building Code compliance pian check specify the
method by which the standing seam roof on the dwelling and the flat roaf on the
garage will comply with Cool Roof requirements of the 2013 California Energy
Code. 2013 CEC §110.8. The 2013 Residential and Non-Residentiaf Comp(iance
Manuals are available on fine at htt ://www.ener .ca. ov/title24/2013standards/
Place the foflowing information on the first page of the plans:
"Construction Hours"
Weekdays: 7:Q0 a.m. — 7:40 p.m.
Saturdays: 9:00 a.m. — 6:00 p.m.
Sundays and Holidays: 1Q:04 a.m. — 6:00 p.m.
(See Ciiy of Burtingame Municipal Code, Section 93.04.100 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 plans may require furiher City approvals incfuding review by the Planning
Commission.n The building owner, project designer, and/or contractor mus#
su bmit a Revision to the City for any work not graphically illus#rated on the Job
Copy of the plans prior to perfarming the work.
6) Anyone who is doing business in the City must have a current City of BurEingame
business license.
7} Provide fully dimensioned plans.
8) Provide a fully dimensioned site plan which shows the frue property boundar{es,
the location af all structures on the property, existing driveways, and on-site
parking.
9} Provide a complete demolition plan that indicates the existing walls, walls to be
demalished, new walls, and a legend. NOTE: A condition of this project
approval is that the Demolition Permit will not be issued and, and no work
can begin {including the removal of a� building components}, uniil a
Building Permit has been issued for the project. The property owner is
responsible for assuring that no work is authorized or performed.
10)When yau submit your plans to the Building Division for p{an review provide a
cornpleted Supplemental Demoli#ion Permii 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 wafls to property lines or to assumed
property lines
12)Show the dimensions to adjacent structures.
13)Obtain a survey o# the property lines.
14)Indicate on the plans that exteriar bearing walls less than five feet from the
property line will be built of one-hour fre-rated construction. (2013 CBC, Tab[e
602)
15}RESIDENTIAL: Rooms that could be used for sleeping purposes must have at
least one window or door that complies with the egress requirements. Specify
the Iocation and the nef clear opening height and widfh of al! required
egress windows on the elevafion drawinas. 2013 California Residential Code
(CRC} §R310.
Note: The area fabeled "Craft° is a room that can be used for sleeping purposes
and, as such, mus# comply with this requirement.
16)Indicate on the plans that, at #he time of Building Permit application, plans and
engineering will be submitted for shoring as required by 2013 CBC, Chapter 31
regarding the protection of adjacent property and as required by OSHA. On the
plans, indicate that the fallowing will be addressed:
a. The walls of the proposed basement shall he pmperly shored, prior to construction
activity. This excavation may need temporary shoring. A competent contractor
shall be consulted for recommendations and desi�nn of shoring scheme for the
t•
excavation. The recommended design type of shoring shall be approved by the
engineer of record or soils engineer prior to usage.
b. AIl appropriate guidelines of OSHA shall be incorporated into the shoring design
by the contractor. Where space pemnits, temporary canstruction slopes may be
utilized in lieu of shoring. Maximum allowable vertical cut for the subject project
will be five (5) feet. $eyond that horizontal benches of 5 feet wide will be required.
Temporary shores shall not exceed 1 to 1(horizontal to vertical). In some areas due
to high moisture content / water table, flatter slopes will be required which will be
recommended by the soils engineer in the field.
c. If shoring is required, specify on the plans who's sole responsibility it is to design
and provide adequate shoring, bracing, formwork, etc. as required for the protection
of life and properiy during construction of the bnilding.
d. Shoring and bracing shall remain in place until flaors, roof, and wall sheathing
have been entirely constracted.
e. Shoring plans shall be wet-stamped and signed by the engineer-of-record and
submitted to the city for review prior to construcrion. If applicable, inciude
surcharge loads from adjacent structures that are within the zone of influence (45
degree wedge up the slope from the base of the retaining wall) and / or driveway
surcharge loads.
17)lndicate on the pfans thai an OSHA permit will be obtained for the shoring* at the
excavation in the basement per CAL / OSHA requirements. See the Cal / OSHA
handbook at: http://wvuw.ca-osha.comlpdfpubs/osha userquide pdf
* Constructian Safetv Orders : Chapter 4, Subchapter 4, Article 6, Section
1541.1.
18)Indicate on the plans that a Grading Permit, if required, will be obtained from the
Depar�ment of Public Works.
19)Provide guardrails at all landings. NOTE: All landings more than 30" in height at
any point are considered in calculating the allowable la# caverage. Consult the
Planning Department for details if your project entails (andings mare than 30" in
height.
20)Provide handrails at all stairs where there are four or more risers. 2013 CBC
§ 1009.
21)Provide lighting at all exterior la � i .
_ _.. t ,
_-.•-�__._.__...._. `; ; /
Reviewed b�""�� �` --�. Date: 3-31-2014
Joe r-,--eBO ; � � 65�58-7270
G�'
Project Gomments
Date:
To:
From:
March 28, 201�
� Engineering DivFsion
(650) 55�7230
0 Building Divisior�
(65U} 558-72�
X Parks DNision
(650J 558-7334
Planning Stafi�
� Fire Division
(650) 558-760�?
0 Stormwater Division
(65�) 342-3727
� Ci#y Attorney
(850) 558-7204
Subject: Reques# #or Design Review for a new, fiwo-story single family
dwelEing with a detached garage and a special permit for basement
ceiling heigtrt at 1529 Bemal Avenue, z���d R-1,
APW: 026-034050
Staff Review: March 3'[, 2014
1. No e�tisting tree over 48 inches in circumference at 54 inches from base of
tree may be removed withoui a Protecfed Tree Permit #rom the Parks Division
(558-7330).
�2. Provide separate irrigation (drip or bubbler) to new landscape frees.
3. Existing City Street Tree may not be ceat, trimmed or removed without permit
from Parks Divisian (5�8-7330)
%.� Garage and House construction is within drip line of existing tr�s_ Provide a
�� Tree Protection Plan to protect trees during all phases of construction.
�. Any root pruning o# roots 2' or larger during excavation of new garage and
house founda�ion wil{ require a documenfed inspection from an on-siie
independent arborist to ensure survival of neighbors oaic and rear neighbors
trees.
C^7�. Complete Water Conservatiort che,Gclist (attached)
J
B Disco 4R/'{4
4_ If Public Vllorks requires sidewalk replacement, Policy for Expanding Wid#h
o# Planter Strip needs io be implemented.
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Project Comments
Date: March 28, 2014 ;
To: X 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
� City Attorney
(650) 558-7204
From: Planning Staff
Subject: Request for Design Review for a new, two-story single family
dwelling with a detached garage and a special permit for basement
ceiling height at 1529 Bernal Avenue, zoned R-1,
APN: 026-034-050
StafF Review: March 31, 2014
1, See attached review comments #1, 2, 5, 14 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 catl City Arborist regarding potential relocation of
sidewalk area around trees in the planter strip.
4. Geotechnical report is required to identify adverse impacts on subject property
and adjacent properties and provide mitigation measures for new basement.
5. Identify seasonal groundwater fluctuations and provide statement of
groundwater levels for the wet and dry seasons.
6. Provide basement perimeter drainage design and potential groundwater
pumping requirements with power backup (if needed).
Reviewed by: V V
Date: 5/06/2014
PUBLIC WORKS DEP.A,RTMENT ENGINEERING DIVISION
PLANNING REVIEW COMMENTS ,� '(�- �J
Project Name:��.Yd,� ,(p�c�'�,,�c,r;�—
,
Project Address: -- �� .�t�
The following requirements apply to the project
1 �_ A property boundary survey shall be preformed by a lacensed land
swrveyor. The survey sha11 show aIl praperty lines, property corners,
easements, topographical fea.tures and utiiities. (Reqnired prior to the
building permit issuance.) �c� A,ti,l,u,�- �� �,�,� �, �
��.�+ts�i ��.�-�D �rLv�c'�-•
2 �_ The site and roof draivage shall be shown on plans and should be made to
drain towards the Frontage Streei. (Requ.ired. prior to the building permit
issuance.)
3• The applicant sha11 submit project grading and drainage plans for
approval prior to the issuance of a Building pez•mit�
4 The project site is in a flood zone, the project shall comply with the City's
flood zone requirements.
5 �_ A sanitary sewer lateral'!is required far the project in accordance with
the City's standards. �
6. The project plans shall show the required Bayfront Bike/Pedestrian trail
and necessary public access improvements as required by San Fraucisco
Bay Conservation and Development Coxnmission.
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 sta.tions and identify mitigation mea.sures.
g Submit traffic trip generation analysis for the pzoject.
9. Submit a traffic impact study for the projec� The traffic sfizdy 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 VJorks Engineering
Division. The parcel map sha1l show aIl existing property lines, easements,
monuments, and new property and 3ot lines proposed by the map.
Page 2 of 3
U:\private development�PLANNING REVIEVJ COMMEN'I'S.doc
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PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION I
11
12
A latest preiiminary title report of the subject parcel of land shall be
sub�.itted to the Public Works Engineering Division with the pazcel map
for reviews.
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 tlie Subdivision Map Act.
14 _� The project shall, at its own cost, design ancl construct frontage public
improvements including curb, gutter, sidewalk and other necessary
appurtenant work.
15 The project shall, at its own. cost, design and construct frontage stxeetscape
improvements including sidewallc, 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 unpacts during construction to vehicular tr�c, pedesfxian traffic
and public on street parking. The project sha11 identify these impacts and
provide mitigation measure acceptable to the City.
17 Tbe project shall submit hydrologic calcnlations 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
i�mpact to both upstream and downstream properties. The hydrologic
catculations sha11 accompany a site map showing the area of the 100-year
flood and e�sting improvements with proposed improvements.
1 S Any work within the drainage area, creek, or creek banks requires a Sta.te
Department of Fish and Game Permit and Army Corps of Engineers
Permits.
19 No construction debris sha11 be atlowed into the creek.
20 _�� The project shail comply with the City's NPDES perm.it requirement to
prevent s�orm water pollution.
21 T'he project does not show the dimensions of existing driveways, re-
submit plans with c�riveway 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 Tb.e plans do not indicate the slope of the driveway, re-submii plans
showing tl�e driveway profile with elevations
Page 2 of 3
U:\private development�PLANNING REVIEW COMMEN'I'S.doc
� PUBLIC W4RKS DEPARTMENT ENGlNEERING DIVISION
23 The bacl� of the driveway/sidewalk appr�ach shall be at Ieast 12" above
the flow line of the frontage curb in the street to prevent overflow of storm
water from the street into priva#e properiy.
24. For the takeout service, a garbage receptacle shall be placed in fron� The i
sidewalk fronting the store shali be kept clean 20' from each side of the
properiy.
25. For commercial projects a designated garbage bin space and cieaning area
shall be located inside the building. A dxain connecting the garbage area to '
the Sanitazy Sewer System is required.
I
■
�
�
Page 3 of 3
U:\private developmentlPLAI�'NING REVIEW COMIvv�EIvTS.doc
- .I ... l _:-_- :. . .. .
Project Comments
Date: March 28, 2414
To: � Engineering Division
(650) 558-7230
� Building Division
(650) 558-7260
0 Parks Division
(650) 55& 7334
�Fire Division
{650) 558-7600
� Stormwater Division
(650) 342-3727
� City Attorney
(650) 558-7204
From: Planning Staff
Subject: Request for Design Review for a new, two-story single family
dwelling with a detached garage and a special permit for basernent
ceilinq. height at 1529 Bernai Avenue, zoned R-1,
APN: 026-Q34-050 �
Staff Review: March 31, 2014
Provide a residential fire sprinkfer 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 shal! 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. Drawings submitted to Building Department for review and approval shall
clearly indicate Fire Sprinklers shall be installed and shop drawings
shal! be approved by the Fire Department prior to installation.
�
Reviewed b ��--- �
Y� r~<� �G�%'�� Date: �.,, � ���" �
Project Comments
�
Date: May 7, 2014
To: � Engineering Division
(650) 558-7230
0 Building Division
{650) 558-7260
� Parks Division
(650) 558-7334
From:
Planning Staff
0 Fire Division
(650) 558-7600
� Stormwater Division
(650) 342-3727
� Ciiy Attorney
{650) 558-7204
Subject: Request for Design Review and Special Permit for basement for a
new two-story singie family dwelling and detached garage at 1529
Bernal Avenue, zoned R-1, APN: 026-034-054
S#aff Review:
1) The Stormwater Requirements Checklist has been filled out and �eturned. ft
indica#es that the project does firigger the new stormwater requirements. Site design
measures B.2.c.,d. will be utifized for compliance.
2) The Best Managemen# Practices (BMPs) has been included in the design plans,
include in the building permit submittal also.
3) There is no architectural copper used in the project.
4) These issues were discussed with Casey Darcy, project manager, on 5I8/14. Afso
discussed was the need to Iabel impervious and pervious surFaces in the future.
For assistance please contact Stephen D. at 65Q-342-3727
Reviewed by: SD ��
Date: 5/8l14
r
'�'v
AN MATEO COUNTYWiDE
WaterPollutlon
FrevernionProgram
Stormwater Checklisi for Small Projects
Municipe1 Regional Stormwater Permit (MRP)
Order No, R2-2009-0074 ; Order No. R2-2011-Oa83
NPDES No. CAS612008
Clty of Burlingarne — Office of
Environmentaf Compliance
1'!03 Airport Btvd
Office: (650} 342-3727
Fax: {650) 342-3712
Complete fhrs form for individual singfe family home proJects of any size, other projscis fhaf create and/or replace less fhan 10,000
square feet af impervious surface, and projects in fhe fo!lowing cafegones that creafe and/or replace less than 5, 000 square feet of
impervlous surface: resfaurants, retail gasoline ouflets, auto service facilities�, and parking lois {sfand-alone or par� of anoiher
use),
A. Project Information
A.1 Project Name: �i����� ��s /D�NC.�
A.2 Project Address: • �� y G) R�� �� !t V�
�cJ �1
A.3 Project APN: �Z � �� �^ O�.�
B. Select Appropriate Site Design Measures
B.1 Does the project create and/or replace 2,500 square feet or more of impe;vious surfacez? � Yas ❑ No
➢!f yes, and the project wrl! receive frna! drscrefionary approval on or after December 9, 2012, fhe projecf musf include one
of Sife Design Measur2s a through f.3 Facf sheets regarding site desrgn measures a through f may be downloaded af
hftp:l/www.flowsto6ay.org/bs new developmentphp#flyers. ,
➢!f no, or fhe project will receive4final discretionary approval before December 1, 2012: fh� project is ancouraged to
imptement site design measures , which may be required at municipalify discrefion. Consult wifh municipaf staff abouf
requirements for your project.
B.2 Is the site design measure included iti fhe project plans?
a. Direct roof runoff into cisterns or rain barrels and use rainwater for irrigatfan or
other non-potable use. .
b. Direct roof runoff onto vegetated areas.
Yes No
� �
❑ �
I�I ❑
� ❑
c. Direct runoff from sidewalks, wafkways, andlor patios onto vegetated areas.
d. Direct runoff from driveways and/or uncovered parking fots onto vegetated areas.
e. Construct sidewatks, waHcways, and/or patios with permeabie surfaces.
f. Construct bike lanes, drivewaqs, andlor uncovered parking lots with permeable
surfaces,
❑ �
❑ �
❑ �
❑ L�
g. Minimize land disturbance and impervious surtace (especially parking tatsj.
h. Maximize permeabifity by clustering development and preservinq open snace.
Use micro-detenfion, inc�uding distributed landscape-based detention
j. Protect sensitive areas, incfuding wetland and riparian areas, and minimize
changes.to fhe natural topograohy.
k. Self-treating area (see Section 4.2 of the C,3 Technical Guidance)
❑ �
❑ �
u -�
❑ �
❑ r�
1. Self-retaining area {see Section 4.3 of the C.3 7echnical Guidance)
m. Plant or preserve interceptor trees (Section 4.1, C.3 Technical Guidance)
1 See Standard Industrial Classification (S!C) codes here.
z Complete the C.3/E.6 Development Revlew Cheok(!st lf the project is not an individual single famlly.home, and iJ,.creates and/or replaces
1 D,000 square feet or more of irnpervious surfaca; or if it is a res.taurant, retal! gesolirie outia�, ;auto s�ni3oe faei�iiy or�arking lot projac: that
creetes and/or replaces 5,000 square ieet or more of imperv3ous surface, -
3 See MRP Provlslon C,3.i. � ��
4 See MRP Provision C.3.a.i.(6),
� ..
;�,
1
_,_ ..,.,
b �
P ��r�`� �
C,+� `��`� �
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�� ����4
_ _ Approved December4, 2012
�
Storm Drain
Fioor Drains
Parking garage
Landscaping
, C. Select appropriate source conErols (Encouraged for all projecfs; may be requrred af municipal discretion. Consu(f municipal sfaffSJ
Are these �eatures thai
features �n require source Source control measures Is source conirol
project? controi (Refer to Locai Source Confro! List for detailed requirements) measure fncluded
measures in ro'e t I
.
v �.�
0 �
0 ►:
1: ■
� a�
■� i:�
'oouspa/Fo untafn
Food Service
Equipmeni
(non-
residential)
Stormwater Check(isf for Sma!! Projects
■ Mark on-site inlets with the words "No Dumping! Flaws to Bay" or equivafent.
■ Plumb interior floor drains to sar�itary sewer [or prohibit].
■ Plumb interior parking garage fioor drains to sanitary sewer,s
■ Retain existing vegetation as practicable.
■ Select diverse species appropriate to the site. Include planfs thaf are pesf-
andlor disease-resistant, drought-tolerant, and/or attract beneficial insects.
■ Minimize use of pesticides and quick-reiease fertilizers.
• Use efficient irriqation system• desiqn to minimize runoff
■ Provide connection to the sanitary sewer fo facifitate draining.6
Provide sink or other area for equipment cleaning, which is:
■ Connected to a grease intercepfor 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 sformwater run-on
and run-off, and si ned to re uire e ui ment washin in this area.
• Provide a roofed and enclosed area for dumpsters, rscycling containers, etc.,
designed to prevent stormwater tun-on and runoff.
■ Connect any drains in or beneath dumpsters, compactors and Yallow bin
areas servin food service facifities to the sanitary sewer �
■ Per#orm process activities either fndoors or in roofed outdoor area, designed
to prevent stormwater run-on and runoff and to drain to the sanitary sewer 6
■ Gover fhe area or design to avoid pollutanf contact with stormwater runoff.
■ Locate area only on paved and contalned areas.
• Rooi storage areas that will contain non-hazardous liquids, dtain to sani:ary
sewers, and coniain b berms or similar
• Roofed, pave and berm wash area to prevent stormwater run-on and runoff,
piumb to the sanifary sewera, and sign as a designated wash area.
• Commercial car wash facifities shall discharQe to the sanitary sewer 6
■ Designate repaidmaintenance area indoors, or an outdoors area designed to
prevent stormwafer run-on and runoff and provide secondary containment. Do
not install drains in the secondary containment areas.
■ No floor drains unless pretreated prlor to discharge to the sanitary sewer. 6
■ Connecf containers or sinks used fior parts cfeaning ta the sani�ary sewer. fi
■ Fueling areas shall have (mpermeable surface that is a) minimally graded to
prevent ponding and b) separated from the resf of fhe s�e by a grade break.
■ Canopy shall extend ai least 10 ft in eech direction from each pump and drain
r.���.�...[��.Y L._�._.
❑ j� Refuse Areas
❑ � Outdoor Proce
Activities �
❑ � Oufdoa;
Equipmentl
Materials
Siorage
❑ (� Vehicle/
Equipment
Cleanin
❑ I � Vehicle(
Equipmenf
Repair and
Maintenance
❑ j� Fuef
Dispensing
Areas
-1
��
!I
�
Loading Doc4cs ■ Cover and/or grade to minimize run-on to and runoff fram the loading area.
■ Posiiion downspouts #o direct stormwater away from the loading area,
■ Draln water from loading dock areas to the sanitary sewer.fi
■ Install door skirts between the trailers and the buildin ,
Fire Sprink�ers ■ Design for discharge of fire sprinkler test wafer to landscape or sanitary sewer�
Miscellaneous ■ Drain condensate of �ir conditioning units to landscaping. Large air
Drain or Wash conditioning units may conne�t to the sanitary sewer.6
Water ■ Roof drains shafl drain to unpaved area where practicable,
■ Drain boiler drain lines, roof top equipment, ali washwater to sanitary sewers.
Architectural ■ Drain rinse water to landscaping, discharge to sanitary sewers, ar co(lect and
Copper dispose properly offsite. See flyer "Requirements for Architecfuraf Copper,"
5 See MRP P�ovision C.3,a.i(7).
p � c p ans?
Pian
Yes No Sheet No.
O �1 �
❑ �i ,u,�
❑ ,I� --
��
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❑ � '
❑
❑ [�
�
a �
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❑ �
❑ �
❑ �
❑ �
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❑ �
❑ ❑
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2
App; oved December 4, 20 i 2
i _
s Sformwafer Checklisf for Smalf Projects
, D'. Implement construction Best Management Practices (BMPs) {Required for a!lprojecfs.)
D.1 fs the sife a"Fiigh Priority Site"? (Municipal sfaff will make this determinatian; if the answeris yes, Yes ❑ No�
fhe project wrll be referred fo constructron site inspecfion sfaff for monfhly stannwafer inspections
during fhe wet season, Ocfober 1 through Apri! 30.)
"High Priority Sites" are sltes that require a grading permit, are adjacent to a creek, or are
othenvise high priority for stormwater protec#ion during construction per Mf2P Provision C.6.e.ii(2). �
�.2 All projects require appropnate starmwater BMPs during construction, indicate which HMPs are included in the project, below,
Yes No 8est Management Practice (BMP)
� ❑ Attach the San Mateo Countywide Water Polfution Prevention Program's construction BMP plan sheet to
project plans and require contractor to implement the applicab3e BMPs �n the plan sheet
� ❑ Temporary erosion controls to sfabilize all denuded areas until permanent erosion controfs are established. �
❑ � Delineate wifh field markers clearing iimits, easements, setbacks, sensitive or critical areas, buffer zones,
trees and drainags courses.
❑�] Provide notes, specifications, or attachments describing the following:
• Constructiort, operation and maintenance of erosion and sediment contro(s, include inspection frequency;
■ Methods and schedule for grading, excavation, filling, clearing of vegetaklon, and storage and disposal of
excsvated or cleared material;
• Specifications forvegetafive cover & mulch, include methods and schedules for planting and fertilization;
• Provisions for temparary and/or permanent irri ation
}� ❑ Pertorm ciearing and earth moving activities only. durin dry weather.
❑ j�, Use sediment controis or filtration to remove sediment when dewafering and obtairi all necsssary permits
�❑ Protect all storm drain inlets in vicinity of site using sediment controis such as berms, fiber ra11s, or filters.
❑. � Trap sediment on-site, using BMPs such as sediment basins or traps, earthen dikes or berms, siit fences,
check dams, soil blankets or mats, covers for soil stock iles, etc.
❑ � Divert on-site runoff around exposed areas; clivert off-site runoff around the site (e.g., swa(es and dikes).
�i ❑ Protecf adjacent propemes and undisturbed areas from construction irnpacts using vegetative buffer strips,
sediment barriers or filters, dikes mulchin or other measures as appropriate
� ❑ Limit construction access routes and sfabilize designated access points.
❑ j� No cleaning, fuefing, or maintaining vehides on-site, except in a designated area where washwater is
contafned and freated.
�1 ❑ Store, handle, and dispose of construction materia(s/wasies properly to prevent contact with stormwater
�❑ Contractor shall train and provide instruction to all employees/subcontr•acfors re: construct(on BMPs. '
(� ❑ Control and pre�ent the discharge of alf potenfial poflutants, incfuding pavement cuttfng wastss, paints,
concrefe, petrvleum products, chemicals, washwater or sediments, rinse water from architectural copper, and
non-stormwater dfscharges to s#orm drains and watetcourses.
Name of applicant completing fhe form:_[`� PE
Signature: �,9� ��f---- Date: �
E. CQmmenfs (For municipal staff use only}:
--.-. i ,�- �,�-;,�., r i�� ,.
�j ,��'ii�#
J S�
F. h� i Ca tror munic�pai statt use only):
v
Approved Decem6er 4, 2012
6 Any connection to fhe sanftary sewer system Is subject to sanitary district approval.
� Businesses that may have outdoor process activities/equipment include machine shops, auto repair, industries with pretreatment facillfies.
3
Project Comments
Date:
To:
From:
Subject:
Staff Review:
March 28, 2014
0 Engineering Division
(650) 558- 7230
� Building Division
(650) 558-7260
� Parks Division
(650) 558-7334
0 Fire Division
(65a) 558-7600
X Stormwater Division
(650) 342-3727
0 City Attorney
(650) 558-7204
Planning Staff
Request for Design Review for a new, two-story single family
dwelling with a detached garage and a special permit for basement
ceiiing height at 1529 Bernal Avenue, zoned R-1,
AP N : 026-034-050
March 31, 2014
1� Stormwater requirements are required to be implemen#ed at stand-alone single
�'a'mily home projects that create and/or replace 2,500 sq.ft. or more of impervious
surface. These requirements are in addition ta any City requirements. To determine if
this projec# 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 12/9/12" and by visiting the San Mateo County Stormwater
Pollution Preven#ion Prograrn (SMCWPPP) website at:
http://flowsiobay. org/fileslprivatend/M RPsourcebk/Section4/C3iNewRegsSmProjSep
2012.doc
To obtain a checklist electronically, the document is available at:
http://flowstobay.org/files/privatendlMRPsourcebklSection4/StormChecklistSmallProj
Dec2Q12.doc
2} Any construction project in the City, regardless of size, shal[ comply with the City's
NPDES {stormwater} permit to prevent stormwater pollution from construction
activities. Project proponent shal! ensure ail 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 full size plan sheet, preferably 2' x 3' or larger. Project
proponent may use ihe attached Construction BMPs plan sheei to comp{y with this
requirement. Electronic file is available for download at:
http://flowstobay.org/files/privatend/MRPsourcebk/Section5/ConstBM PPIanJun2012.
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://flowstobay.orglfiles/privatend/MRPsourcebk/Section8/ArchitecturalcopperBMPs
.pdf
For assistance please contact Stephen D. at 650-342-3727
Reviewed by: SD
Date: 4/1 J14
�-.,.,� C�nst�ructio� ��si 1VI�n�. �
$AN MA7E0 COUNiYWIOE ������ ���C����js �����
J� .� �
Water Pollution Constntction projects aze requu�ed to x�ntplement the stormwater best management racii
PreventiQn PrQgram P ��s (BMP) on this pagE,
Gean V��2er Hea;;ny cammv�;c�. as they appjy to your project, a11 year Iong.
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Nu1FIWa�Jprs yfalcriala
❑ Bum and eover sloei,yiles of mnd. dirt or aFer consmw�ion mamrini
"'�1� u�7�x �.'hrn rain is fwectisi nr if no� a�tivcly y�inp uswl ..;�hq�
IY dn.:.
� Uae (bxidai t memx) mcVimed �antcr for Ausl camrot.
fluaMaus Materiats
❑ Vbd all iwnrAnus marcriais nnd IW�rdmis aas�es (mc6 x�
���, W�s, ihinne� solven�. f I. 07. and alnifreezc) a
K�wdance..iA+ ciro „
.. wumr. shm avd fcddn! rcg�ktioiu.
O S�ore h�adous matarin� aod mrc�ea ;n n�nmr o6ht canmtners, slom
u ayprop��e seeondm�, eonpininrn� pnd cover �Iwm a[ Ihc rnd oC
�*em uw4 Uay or Anriup n�n rvoa�ha � R6a� nin is finecost,
❑ FoIWu� roAn�d�� e��Ikafiw in41roo11ons fot hma�dous
mn«riWc a�xl be ccsA�I not m ux more uma nttcssm.. Do nd
a�plr chem:wl�a„��„ ���� Nn iz facc�[ auhin 29 Irairx.
Q M�'ae ��VP�Y+ex disy�nl oCNI I��dam was�es.
Wnsfc ManaFcoiant
❑ Covec sxule di��osal cmNnir.ns tcnircly w•ilh wq al lirc rnd of
e�cp wwk Qa� u�d durins met n'�nther.
D C6eei; xaAe a��pose� �onrnfnenlreqrtcnUy ta Ie�t3 and b make
w�e they me nw o�erGlled. Ne�xr 4ase do.rn n dm�Pymr m U�e
rmCGncUoo SUC
O Cinn aritrlmx poRyblc loilcis. uM inspecf �h¢m Gequealh� for
kdu emi sp�lb.
❑ Dispose af sll �vastn md de6ris
O�+ti. Reeyclu ma�era4 and
�'+�tas thaf mn bc vonxkd (socl� as uphalt. wncrc�c. nggrogn�o h,�c
o.aerisb� .rood. GYV 6oad PTS ueJ
Q Diapoac ofllquid.esidues Gon p.inb� Wmnen. aol.enn. C7wa. a�J
���g 6uiAs es Lunrdp�s nmk,
C^netru<+bn Eoo-xnera anU Pulmeter
❑ Eslabli�h m�d nuiwuin eflLerive pmimqcr mn W Is aml �ta6fliu all
�onmuoeoo cohn�a nna nsSts n r�lGcirn�.h connal masion und
seaimrn� dieUm�es trom ,tm aud aae�ing ott sim.
❑�O�D °� "°�w+a an3' �hea uacting immcdiwclr a�W eeeu�a
���1 �� w pm�cnt fun6cr vacq ing. Ne•�er hose do�rn �veeu
b cic�n up uwky�x.
Eqttipment Nlanagement &
Spill Control
�
Mninienanccw�AParking ��
O 1Mi�ux un erel Gucd i.i�h aPProP�.te 6MPz Cor
�zliwk ond equipnicrtt p�rtku�q end storaQe,
O Perf'wm m jor maintenance, reqrirloty. and xhi�k
and oqoipn�em wmhing oiFtiic.
a u��4ay or �ehicta m�nxa�v�ce mos� be dooe
onHle, nork m o bennep un anxT f� �o� ��
nnJ o�er e d'ip pen 6i8 nwuQh �o calleet Ilnidy.
Run-ck w Aixpme o{evids m h �n{wa �vas�e.
❑ lfvchioleorequqnnen�.ck�ningm�ntbe�ionemrha,
ckm W�iN wmm� wil�• in e 6c�med an�n thm niil nm
ollmv ri�e �.yecl ro+uu (nm �mcrs. etm�Ix slmm
d+�aiz arsurFicc wnters,
❑ Do fwl ckan mhicic or cqWp�qpnc muhe osing aoops.
p�ne
sol�eu(S, Q�Fn.psen. i[e W� ekanu�N �9��O�trc.nl. o1C
51�� pRYcnNon 0.nA Con{rol '
4 Ktty�irilfolmmipmaicrials(iaSf..bsa6en�s.cicJ
.wikbk ai Um ronsincri� siie a ap fimu
� ��spect �ehido and eqiup.�cm fi�qumtly f� a�M
�cpuir (� p�pyy. Uso drip pmw to m�ch Irnks
Yilll( R�IoiA c�C ItlGd�.
� c In,u w N� or ku:, tmmmuhl} wd Nsp„e ur
lea�.yip.u.arteb p�rl7_
❑ Da �rot Iw:c dm.n sm(ncea mh�e uwida M�e spiikd
Uu dn� ckanup mqhods (absorhenl mnbi�G. wt
cinv, unNa mgs1. .
❑ &Cccpup�pilkddrrmalcriWimmed'ukle.bonol
aT m va�� �M1cm nn�a}' wip� wnm. Q Mv' Ihem.
❑ L�Iton p sPillr on dirt Neoe 6�' di8[M6 ��p �d
PcopvW dispo�lns otwnmmi�ue� soi1.
❑ ReP�t c(p,mfiqnt apiAa io�medioRly. Yw am retp�cd
b�� In. io rcport uU aigiile,nt ieleases AfAarzMons
mruia�, i�wloding oll. To �cpon a sPill: q Dial 911
w yoi.. bcii anerty¢r �eqonsa nwnhcr. A Call Sk
(3o�xmm'� Of9ce of Emuga�4' Srndca� W nine
Crniv. (E00) BJ&7530 (2J 4ours).
Storrn drain
�arth�vork &
Contanainated
Soils
, , �' �'�
a+�:..—� , _ �
���_'�. -_� m� _ = . .
n
.... ....,. ...�.. �y^C�.�^'bn�:._�'
Groslon Caoi�al
❑ SG�W�Je 9mAins md c uentiort ��ar1: Cw
�' ��wlhcrm�ly.
O Sia6ilae all de�wded omss, insmll and
maintain rcmporery woim conwls (such
o� wiion eonaof hhit orboaded fibcr
mm+bt) unel.egelodu� iumloblialcQ
❑ SeeJ a pl«u �•egemuou for e�os;on
mMd on sfopes or Mw� mvyvcy�� Is
not Immdirlcl. piumcd.
SeAirxm Con�rol
❑ P��Yawm dmin inld�. g�mca. di¢liea,
ud Gnirv�ge cwrtn ni�h npprop�m
BAiPs. +HeL m Ern��el.ysR- Ghm �olls.
bcmis, ok.
❑ P�cveucsediman[6vmmi�r�fnYoflutc
DT insinlling �nd maimeining �edi�uat
e�W Ii suc6 x 66er 1olls. sill frnees or
acdlmco[bevnS
❑ KceO eewvakd soil on We aih ni�erc n
..ili no� cull<q �o We weo�
m
❑ Tnn�fer cx.n�ed muerials � dump
oacFs on IAe site. np[ in Ihe ehcel.
❑ Con14�IM1ld$p115
� Vnoqof�hcfollo�rSnewndiva�smc
u6aared. tea faoonmmineaon and
cm�mct Jm Rcglmal Weia Quati[y
Condol Boncdd �
■ Uiwa.l soil cuuditio„�, dixalomtiq4
urador
s ALudoncdm�derqound tnnks.
■ .tibandoncd am�ls
■ Buried bmek debrie, "w unsli
Paving/,�1 sphalt i�ork
a awwpovinc.owacot000tineinx2l
mn�her. or+vha rain ic fo�eust befo�e
trah p��emen� ivlll hnx lime m cure.
❑ cmR:m�,nd�,����,,,,annw,ow
,.6cn opp�y9np sm� omi ncF w.�.k�rc�.
� �Og su� etc.
o cw�c�a�,�teo�.poroe���y
dicpoee OCo;aFf ab.asi.0 pa�d o! furd.
Do NOT.m'cep or �vsL It imo euqca,
❑ Do mt nsn ��rotu io rasL down lrcsh
n�p)mlt mnc�¢ pe�col
Sawt tt6�Y�A+OhalUCanuc(eRcmp�•a1
� Complctelr co�xr or hacricadc smmi
amt��..m�nm..�wm�e uRnutr
Cabric. c.Ich bn;o ink� fihrn. or �a�•cl
MR m lxp clum ovt nf thc sroim drxin
a7nem,
❑ Shmx4aboeorb.ar.yeuu�nnn�en�
.Lvry.od dicaote oialt n�azrc n won
n)'oo .m flniched In orm Ioraiion or ��
mc rn3 or mch worl my (v�hicM1cver if
roonW).
❑ I(s�nvn[ durt�• �wters e enich haiR clen
111iP NIIIIfdj9lC�f,
Concrcte, Crout & Naa�(���
AppLcadon
�� �� ��rz,�`s— . "
.���.iL�����
� s f
❑ S�me eo�k+c+e, 4W� and monar under
w. r, an p.11cu.nd a�rny froni ya;,,�ge
o�+.'�M1� ma�erials n�ust nc��cr rc�cl� n
norn� dru'n.
❑ Wis6 w� emmve eqwp„�rno'wrJ,W
offsi¢ a� 7n a contained area, so �hae
is no ��.,Sc ii�m ihc m�dcrl��ing mil
or onro sa�ra,�� ce aw. L�i �o�rem
�uNNc� �d d'npos ofoi �arba6c
❑ CMlcu�hc �casii wamr Gom masl�ing
f�0o+ � agkrcga�c wrrc�cte anG rwo�c ii
�ropriai<disposal oKsi�e.
Dew•atering .
�������
n
❑ ElTrai�+elr mau�e dl .un.oa a�i
funolT�ritAin 1Fe eit¢. a�y all rarwif(�.�
diRJmrg�e fmm 1f�e d�e. Di.�er� rvn.on
�vnu fmm oll'ni�c anay from ap diuwbcd
areas or ol4crnise ens�uc r4mplianm.
❑ �5'hrn Arn•�krin�, naif anA ohuin
+PPa'+I f � ��e IcKal m�micipeli�.
Lu �e disclnrpiny na�u ia . saco gmia
o s�onn enin. Filaanon ordi.�crsion
Wau�y a buv�, nny-, or sedimcni ir p
.+� b rcqni¢d.
��nmeavofkno..wco�.c i�uon.�cn;nt
rt requircd prwr io renr �� dis�lw�.e of
groundwalec Conmh u•iA d�c Hng;nec iu
daem, o �.�m� n�e �: roq��roe ��e
La�� ia'imemrcl reculu. Con�.v�i;na�rd
gm�md.�vlv nos� bc ircaicd a ImW W
oe'�ife tor p�opv aupoiei.
be liable for fines of up to $Z0,000 pe�- day►
Painting & paint Removal
- `;;.` ` �
.��y\_
'* _
rai���.,x a�an��
� Nc.•v cican bnirl�cs ornnzc piini
�OIIIOlIMJy I010 � SUCCC �IIM. Sltyth
dni su� cc natcrs.
� fxo��Ncrl+areC painls. p.im p�� hmshcs
lo Jie e��ta1 pouiblc, µ�nR fo {�o
S0"'�'' x^�U o�c �au �e�e gainN
pvmi sian fmm U,c lool n��smwvkr
immnKm autl�ori�.. Nc�cr pa�r vnim
dmrn n drau�.
O For d1-Gecd pa;nu wior «n b.us6o �n
Ihc oum possihlc and elenn rit6 iku.�cr
or w1 ��cm in � �xyn.Y munu�cr. Flicr �Nd
ruuc ihim�ers and mlcrnis. Dispvse of
¢sidne end uu�ble Ihinner,'solrems aa
4o..rdouc �aHe
Pain� rcreu�.���
� Chemical ptin� spiOpi�B 2sitloe nnd
4�ips ond dun lrmn muinc � in(s nr
p�� �x cunmimxC �nd a rribupqan m,m
be d"upnsed of.s ha>ardo�s �.vtc
a r ��� a,��. ,,,,a d�m r,u�„ �wn-nn»nia�s
dry strippinF y,d snnd blonin� n�av 6c
n`cv� ��n � coueaca in nL�siic amp
.:�e�hs �nd disposW ofu lmslt
L.andscapc Materials
� ,x..t
rR� . .
'� '���:\`c
:�•j
L-,',`
❑ Ca.pin ha{�pflc� L n�ving ma�eriols
l+r siorinr J.em w�dtt m�n �rhtn tM1c�' aR
�a aniwle bcingiaed.
❑ Smek cro6fAle lan�supe nl�ter'ul ow
palicls. Co�c(or ilore �ieu ma��ats
n'hcn Ihn' are �W acli�xh• 6cins uscA or
appl�cd.
❑ Oisconu„ue appli�vnon afonc crodiblc
lmtds�p� mel<�ul u�iJ�in ; Jo�•y p�loR �
fo�cun nin crcn� or during .�ct ..c�U�u.
�
!AN MA7EOCD1INTTM'IDC
WaterPo��ution
Prever►t�on Program
�.,,W,�., H„H„4��„���y Requirements ior Architectural Copper
Proiect water quality during instailation, cleaning, treating, and washing!
Copper from Buiidings May Harm Aquatic Life
Copper can harm aquatic (ife in San Francisco 8ay. Water that comes
into contact with architecfural copper may contribute to impacts,
especially during installation, cleaning, treafing, or washrng, 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, fhe rinse water is a saurce 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 foliowing Best Management Practices (BMPs)
discharges t� storm drains.
must be implemented to prevent prohibited
During lnsfallation
• ff possibie, purchase copper materials that have been pre-patinated at the factory.
• If patination is done on-site, implement one or more of the followina BMPs�
o Discharge the rinse water fo landscaping. Ensure that the
rinse water does not flow to the street or storm drain.
Block off storm drain inlet if needed,
o Coflec# rinse water in a tank and pump to the sanitary
sewer. Confac� your local� sanitary sewer agency be�`ore
discharging to the sanifary sewer.
o Coflect the rinse water in a tank and haul off-siie for
proper disposal,
• Consider coa#ing the copper materiafs with an impervious
coating ihat prevents further. corrosion and runoff. This will
afso maintain the desired color for a longer time, requiring
less main#enance. �
During Maintenance
Impfement the fo!lowing BMPs during routine maintenance activities, such as power washing the roof,
re-patination or re-application of impervious coating:
• Block storm drain inlets as needed to prevenf runo�f from entering storm drains.
• Discharge the wash water to landscaping or to the sanitary sewer (with permission from the locaf
sanitary sewer agency). If this is not an option, haul the wash water off-site for proper dispasal.
Protect ihe BaylOcean and yourself!
!f you are responsib(e for a discharge fo tne storm drain of non-
stormwater generaisd by installins, cieaning, ireating or washing
cepper architecfural features, you are in violation of the municipai
stormwater ordinance and may be subject to a�ne.
Contact information
The San Mateo Countywide Water Pollution Prevention Program fisis municipa! stormwater contacts at
www.ffows#obav ora (click on "8usiness", then "New Development°, then "local permitti�g agency").
_ _. _ ...
• i
il
� I
FINAL Febr�rary 29, 2012
gurter and drainpipe.
proni,ortea a�rscharge. The water must be
pumped and disposed of praperly.