Email 20 From: Zeean Brydon [mailto:[email address]] Sent: Wednesday, 11 May 2016 12:55 p.m. To: 'Sheryl Barker' <[email address]> Subject: SR356224 - 79 Taranaki Street - Sewer Size discussion with SB Hi Sheryl The sections are slightly different from Hywel’s model – but not significant enough to impact the modelling result. The high level overflow is included in Hywel’s model so it’s impact should already be accounted for. Cheers Zeean Brydon | Associate Engineer e2Environmental m 022 639 2212 e2Environmental Ltd 14 Queen St, Blenheim PO Box 380, Blenheim 7201 www.e2Environmental.com From: Kevin O'Keeffe [mailto:Kevin.O'[email address]] Sent: Wednesday, 11 May 2016 12:13 p.m. To: Zeean Brydon <[email address]> Cc: Sheryl Barker <[email address]> Subject: RE: SR356224 - 79 Taranaki Street - Sewer Size Zeean. I have checked the pipe lines in the area of Ghuznee, Dixon, Egmont and Taranaki Streets and the sizes are correct. The main flow from Ghuznee flows into Egmont Street then to Dixon Street to go towards Taranaki Street. There is an alternate higher level outlet of 150mm dia from manhole WW35573 which heads towards Taranaki Street. See attached long sections of both pipe lines. Cheers Kevin Kevin O'Keeffe Drainage Network Advisor Tel +64 4 912 4400 DDI 04 912 4459 [mobile number] Private Bag 39804, Wellington Mail Centre 5045 Level 4, IBM House, 25 Victoria Street, Petone, Lower Hutt www.wellingtonwater.co.nz Wellington Water is owned by the Hutt, Porirua, Upper Hutt and Wellington city councils and Greater Wellington Regional Council. We manage their drinking water, wastewater and stormwater services. From: Zeean Brydon [mailto:[email address]] Sent: Monday, 9 May 2016 9:28 p.m. To: Kevin O'Keeffe Cc: Sheryl Barker Subject: SR356224 - 79 Taranaki Street - Sewer Size Hi Kevin Would you be able to confirm the size of the WW main in Taranaki Road The 150mm diameter section from WW35573 to WW36428 as shown on Hywel’s long section in the email below. Thanks Zeean Brydon | Associate Engineer e2Environmental m 022 639 2212 e2Environmental Ltd 14 Queen St, Blenheim PO Box 380, Blenheim 7201 www.e2Environmental.com From: Sarah Zhou [mailto:[email address]] Sent: Friday, 6 May 2016 2:16 p.m. To: [email address] Subject: FW: SR356224 - 79 Taranaki Street - Capacity Enquiry Response FYI From: Hywel Lewis Sent: Friday, 6 May 2016 2:02 p.m. To: Sarah Zhou Subject: FW: SR356224 - 79 Taranaki Street - Capacity Enquiry Hi Sarah, based on 2012 COP the 150mm pipe work downstream of this site is undersized. It would be a good idea to get Kevin to confirm the pipe sizes in this part of the network. Notwithstanding 225mm pipework is also undersized. Hywel Lewis Senior Engineer Modelling Tel +64 4 910 3800 DDI [mobile number] Private Bag 39804, Wellington Mail Centre 5045 Level 4, IBM House, 25 Victoria Street, Petone, Lower Hutt www.wellingtonwater.co.nz Wellington Water is owned by the Hutt, Porirua, Upper Hutt and Wellington city councils and Greater Wellington Regional Council. We manage their drinking water, wastewater and stormwater services. From: Zeean Brydon [mailto:[email address]] Sent: Tuesday, 3 May 2016 11:52 a.m. To: Hywel Lewis Subject: SR356224 - 79 Taranaki Street - Capacity Enquiry Hi Hywel David Wilson suggested I contacted you about this site – he seems to think you might have a WW model for this area. I’m looking at this RC for Sheryl Barker, The site is 79 Taranaki Street. The site and existing WW discharge lateral are showing on the attached GIS extract. The applicant is proposing to convert 5 floors of office to ‘residential’ accommodation. Pre Development The current office floor plans show 2 ‘toilet’ areas per floor with a total of 4 urinals, 7 basins, 7 toilets, and 2 cleaners sinks – so not much. Office floor area (including the toilet space) is 841m2 over 6 floors (one floor will remain as office after the conversion) giving a total floor area of 5046m2. Post Development 1 floor will remain as office – 841m2. 5 floors will be converted to ‘residential’. This is however high density 1 to 3 bedroom appartments. Floors 1 – 4 will have 25 beds, 14 bathrooms and 14 kitchen units - I haven’t looked at flows but if you took beds alone this would be equivalent to 8 x 3 bedroom houses. Floor 5 will have 8 beds, 9 bathrooms and 2 kitchen units – so again based on number of beds – 3 x 3 bedroom houses. So expecting quite a significant increase in off-site WW discharge. Is it possible to check if this will cause any capacity issues. Please feel free to get back to me if you need any further information. Thanks Zeean Brydon. 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