HomeMy WebLinkAboutREDgirvinph3~~~~~~~~~~~►~II~~I~P~ill~~'►'c o u n c I l m E m o Ra
n°U MOctober 19, 201 0
City Counci l
Katie Lichtig, City Manager
John Mandeville, Community Deve l
BY :
Tim Girvin, Chief Building Officia l
SUBJECT :
Rainwater Harvesting Code Change s
Some of our local rainwater harvesting advocates have questioned the proposed code change s
related to the amount of water storage that would be exempt from permit requirements . The y
support exempting permits for up to 5,000 gallons of storage . Staff has considered this and
studied the potential impacts of such large amounts of water storage in the context of San Lui s
Obispo . The recommended limit of 250 gallons being exempt from a permit has been reviewe d
and approved by the San Luis Obispo Health Department, the City of San Luis Obispo's Wate r
Division Manager and members of the Rainwater Harvesting Stakeholder Group which include s
design professionals from RRM, other Architects and Engineers that are also affiliated with loca l
chapter of US Green Build and EcoSLO . Research has been done and the results indicate thes e
proposed changes are consistent with the standards specified in other communities in California .
If Council chooses, continued efforts to develop a more robust Rainwater Harvesting Progra m
may result in more liberal amounts of water storage, but it is recommended that the City of Sa n
Luis Obispo first incorporate necessary provisions into the zoning regulations to ensure ther e
will be no adverse impacts to neighborhoods .
The proposed language is listed below in legislative draft form with references to the pag e
numbers of the report where the sections can be found .
Section 105 . Work Exempt from permit .(PH3-12, PH3-55, PH3-104 )
5 .A water tanks-or a group of water tanks intended for storage of irrigation water onl y
supported directly on grade if the total capacity does not exceed 54400 250 gallons an d
the ratio of height to width does not exceed 2 :1 .
RED FIL E
MEETING AGEND A
DATE 10 ITEM #P11 3
Section 220 (Added Definition)
Rainwater Harvesting System . A storm drainage collection system that collects rain'iater fro m
the roof area of a structure or structures in conformance with the American Rainwater Catchmen t
System Association (ARCSA) guidelines or an equivalent standard as approved by the Buildin g
Official an g
6sv°
sbi County Environmental Health Department .
DATE :
TO :
VIA :
FROM :
/ SLIP OYY /Mar
Chapter 2 Definitions (PH3-14, PH3-58, PH3-105)
OUNCIL E--ODD DI R
~ ~&id
Er-FIN DI RZ''FIRE CHE FTTORNEY'PW DI R
CLERK/ORIG I POLICE CH F
DEPT HEADS 'IEC DI R1~ Zr-LiTILDI RrP-4 —tA~-2 -RR DI R
i 11)04 7l al is uQ~
ca l /v61Z
eLe7e
OCT 19 201 0
SLO CITY (AT -
Council Memo Red File Rainwater
Chapter 11 –Storm Drainage (PH3-19, PH3-62, PH3-106 )
1 101 .2 .1 (Add Section)
Rainwater Harvesting . Storm water drainage may be directed to an approyed rainwate r
harvesting system and used as an alternate source of water for non-potable uses as approved b y
the Building Official and the San Luis Obispo County Environmental Health Department . Th e
installation and use of such a system or systems must be designed to not interact with the potabl e
water system, the building sanitary sewer or drainage systems that flow to any creek . Rainwate r
harvesting systems must be maintained in such manner as to not cause damage to property ,
create a nuisance or be in conflict with the City of San Luis Obispo's Slorrn~~ tiler Managemen t
Plan .
Note :
Strikethrough indicates proposed deleted text .
Highlighted areas indicate proposed added code language .