[ca-gw] FW: [Permaculture International] First LA County approved grey water system

Fri Dec 4 13:20:27 PST 2009

> Go Steve Go!!!
> Geez - Sounds like it would be worth your while to contact the architects
> Khalifeh & Associates Inc and mention that it would be in the best
> professional decorum to acknowledge you & your system, for which they are now
> getting a bunch of accolades!!
> Brock
> 
> Interesting.  Not one note about the fact that the greywater irrigation system
> installed on that project is the ReWater system.   Another ³first² in our
> 20-year history of designing, manufacturing, and supporting legal greywater
> irrigation systems.
>  
> 
> From: ca-standard-bounces at graywater.org
> [mailto:ca-standard-bounces at graywater.org] On Behalf Of Brock Dolman
> Sent: Friday, December 04, 2009 11:59 AM
> To: 'ca-standard at graywater.org'
> Cc: SCWaterCoalition at yahoogroups.com
> Subject: [ca-gw] FW: [Permaculture International] First LA County approved
> grey water system
>  
> FYI...
> Brock
> 
> ------ Forwarded Message
> From: Michael Kramer <michael at naturalinvesting.com>
> 
> Love to see the mainstreaming of these strategies...
> 
>> >From http://www.consilienceblog.org
> 
> Gray Water Irrigation System
> 
> In order to accommodate Abode Communities request to explore water saving
> measures for landscape irrigation, Khalifeh & Associates Inc. set out to
> design the first gray water system approved by the County of Los Angeles.
> 
> At a time when Los Angeles is facing water shortages, Abode Communities (a
> non-profit developer specializing in sustainable low-income housing projects)
> was committed to invest the necessary resources for designing and installing
> an environmentally sound system that would reduce water consumption in their
> 70 unit senior housing project.
> 
> Khalifeh & Associates explored different ways to meet this challenge and found
> that the best way to reduce consumption would be to retain, filter, and reuse
> the discharged water from the project¹s onsite laundry facility. The effluent
> released from the washing machines would be captured in a 750 gallon
> underground storage tank located nearby the Laundry room. Contractors bid this
> system to have an installed cost of $60,000 and project that landscape water
> consumption to be reduced by 90%, giving the system a 25 year payback. The
> water factors of standard front load clothes washers are 31.5 gallons per
> cycle, 1 hour cycle time, and there are a total of 7 washers installed onsite.
> The laundry facility operates 12 hours per day, making its¹ water usage 2,646
> gallons/day.
> 
> 31.5 gallons per wash x 1hr cycle x 7 washing machines x 12 hour occupancy =
> 2,646 gallons per day
> 
> 100% of the effluent released by the washing machines will be captured in an
> underground storage tank equipped with a small irrigation pump. The effluent
> from the washing machines require sufficient filtration and treatment before
> landscape application is done. Dependant on the type of soil, local codes
> require respective minimum square footage of irrigation area per 100 gallons
> of estimated daily gray water dispersal. The Soil sample taken by a
> Geotechnical engineer proved the soil to be in a category requiring 100ft² of
> landscape area per 100 gallons of gray water. This made the total required
> area 2,646ft².
> 
> 2,646 gallons x 100ft² ÷ 100gallons = 2,646ft² of required landscape area
> 
> The actual total irrigation field onsite is just less than 10,000ft² which is
> considerably larger than the minimum required area per code. With this
> information along with plumbing system design drawings and additional
> calculations, Khalifeh & Associates sought to have their water saving system
> approved by the Los Angeles County Building and Safety plancheck department.
> Such a system had never been approved and thus review of the Khalifeh &
> Associates proposal was extremely thorough. The county wanted to know, without
> a doubt, that the system would function properly and that well thought out
> safety measures would be incorporated to address the possibility of system
> failure.
> 
>                After several attempts to obtain the county¹s approval, the
> engineers at Khalifeh & Associates were able to convince the plancheck
> department that all of the county¹s stringent requirements would be satisfied.
> Their approval makes the team at Khalifeh & Associates the first consulting
> engineers to design an approved gray water system in the county of Los Angeles
> for reducing water consumption and improving the environment.
> 
> Jack Khalifeh is president of Khalifeh & Associates Inc. Consulting Engineers,
> P.E., a multidisciplined, professional engineering firm specializing in
> mechanical, electrical, plumbing, fire protection, lighting, sustainable
> design, commissioning and energy audit services. Jack is a LEED-accredited
> professional and a member of the U.S. Green Building Council. Visit
> www.khalifehassociates.com <http://www.khalifehassociates.com/>
> tel:(310)-305-1555
> 
> 
> 
> ----------------------------------
> Michael Kramer, AIF®
> Managing Partner & Director of Social Research
> 
> Portfolio Management for Individuals and Institutions Nationwide Exclusively
> Using Socially Responsible and Green Investments
> www.naturalinvesting.com
> 808-331-0910   888-779-1500 (toll-free)
> 
> ³Be the change you wish to see in the world.²
> 
> Natural Investments LLC is an Investment Adviser registered with the
> Securities and Exchange Commission
> ______________________________________________________________________________
> _________________________________
> Please contact me if you have not received a response to your email within a
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> 
> 
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> ------ End of Forwarded Message
> 

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