Copy Response to DERM's information request from applicant - REC11/0145

DMC OLD Enterprises Pty Ltd
ACN 149541 444
4 Ron Bischof Close
CASHMERE Old 4500




DERM
POBox 168.
Cotton Tree Qld 4558


Your Ref:       381925/MCY2544                           5th March 2012

Enqueries:      Brodie Lucht


Attention:      Mr Ben Sale

                Delegate
                               RE:   21 Webb Rd Sunshine Beach DA RFI
                                     Lot 2 on RP234161
Dear Sir,


This information is supplied supplementary to our report "Engineering Assessment for
21 Webb Road, Sunshine Beach", dated 11th November 2011, included with the
Development Application. With respect to your letter dated 18th January 2012,
requesting additional information: Please find attached our Design Drawing NO.2 A,
principally showing the proposed stormwater works to service the new properties if the
land is subdivided as depicted in the proposal plan. Essentially it is proposed that all
new dwellings provide sufficient down pipes to a piped roof-water drainage system, (lA

-
  2A -
       3A Existing), which will connect and discharge into an existing stormwater pit,
            -




which located in the council pathway, adjacent the southern side boundary,
approximately 25m upstream of the downstream boundary.

With reference to Point 8 of your RFI, the new proposed stormwater system, as outlined
above, will capture all concentrated flows from roof areas, and by pipe directly
discharge them into an existing system. The Development will have no net worsening of
Stormwater Quality as the future Roofwater System is a similar treatment and size as
the existing system. No net change in stormwater and water quality is expected.


In summary, provided the stormwater runoff is managed in accordance with current

guidelines, the subdivision of the property as proposed is not considered to a create any
issues with respect to water quality or silt and erosion control.


Should you wish to discuss any of these issues please do not hesitative to call Diana M
Campbell on 0427 263 152 or email [email protected] sincerely,




 ~~.
Diana M Campbell
BE (Civil)RPEQ 4945

(m)0427 263 152
(e)[email protected]