In 2012 we provided an engineering and environmental report for a Development Application for a 20 lot rural subdivision to be constructed over 3 stages. We designed the subdivision and provided a site based management plan (SBMP) including water quality and quantity management. This was carried out in accordance with the Development Assessment Code in SPP 4/10 - Healthy Waters. Stormwater runoff was modelled for the Q100 event and design flows in accordance with the Queensland Urban Drainage Manual & Local Authority requirements.