Blenheim Stormwater Strategy - Action Plan # Action Priority Timeframe Indicator within the acceptable limits. 5g Identify options for reducing existingimpervious cover, in particular through best Medium Medium practice on Council owned or developed property. 5h Explore whether the reuse of stormwater is aviable option in parts of Blenheim, including Medium Medium the use of rainwater storage tanks on private properties. 5j In assessing discharge applications any High Short additional discharge shall not compromise the performance of the downstream drainage system. This shall take into account potential discharge from other zoned but undeveloped land draining to the drainage system. 10a Develop and implement stormwatermanagement action plans for each catchment, High Medium based on priorities identified in this strategy. 10d Identify where stormwater systems andtreatment devices are not performing. High Short 10e Identify and map infrastructure in poorcondition in each catchment – make sure this Medium Short information is available and is utilised when making capacity upgrade decisions. 10f Identify retrofit opportunities to upgradeexisting stormwater systems that have been Medium Medium identified as discharging to priority catchments. This should occur in conjunction with land intensification decisions to identify areas where infill is most appropriate. 10g Undertake mapping and auditing of soakpits,including development of a database of Medium Short information. 10h Develop improved understanding of currentrunoff characteristics including informal Medium Short storage and runoff coefficients. Incorporate results into design techniques and guidelines. Beca // 28 May 2009 4260171 // NZ1-1630756-12 0.12 Page 122