Hydrologic shortcomings of conventional urban stormwater management and opportunities for reform

► Conventional urban stormwater drainage fundamentally alters stream hydrology. ► Methods for reducing stormwater pollution typically only attenuate peak flows. ► Stream protection requires a more complete approach to flow-regime restoration. ► Near-natural flow regimes are achievable using existing strategies at small scales. ► Both infiltration and harvesting of stormwater are required to achieve this.