ecosystem health sustainability contact holistic approach ongoing maintenance existing infrastructure conveyance channels heavy rainfall soil erosion improves biodiversity plants animals wet season harmful chemicals typically free replenish ponds innovative approach funnel rainwater storing rainwater allowing water surface water water conservation rainwater harvesting pond rejuvenation combining rainwater harvesting rainwater harvesting systems pond rejuvenation helps ponds size location municipal water systems addresses water scarcity pond implementation installation ensure longterm success implemented effectively design pollutants unlike groundwater