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Update to NVBIA/NAIOP Regarding Rainwater Harvesting

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Update to NVBIA/NAIOP Regarding Rainwater Harvesting

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Update to NVBIA/NAIOP Regarding Rainwater Harvesting

  1. 1. A Fairfax County, VA, publication Department of Land Development Services Update to NVBIA/NAIOP regarding rainwater harvesting March 21, 2019
  2. 2. Rainwater harvesting update • Problem statement: Plumbing code definitions of rainwater restrict harvesting from rooftop collection surfaces most types of reuse. – Example: collection from publicly accessible dog runs or park use on top of a building podium. – Reuse of water for cooling towers is not approvable per code language. 2 • Working solution: Applicant can pursue alternative compliance path via code modification. – Applicant can reference Canadian Standards Association (CSA) – International Code Council (ICC) document . – CSA B805-18/ICC 805-2018 – Includes prescriptive and performance options. – Staff has approved two modifications for developments in Tysons.
  3. 3. 3 Building Official’s blog update is available here: https://www.fairfaxcounty.gov/landd evelopment/rainwater-harvesting-0
  4. 4. Additional Information For additional information, please contact www.fairfaxcounty.gov 4 William Marsh 703-324-1972 Wililam.Marsh@fairfaxcounty.gov

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