Managed Aquifer Recharge in South Auckland
South Auckland combines fast urban growth with some of the region’s most productive horticulture, and both lean heavily on groundwater. The volcanic aquifers around Pukekohe and Franklin support intensive cropping, while new communities at Drury and Flat Bush keep lifting demand, so storing water for the dry season is increasingly valuable here. Managed aquifer recharge offers a way to bank water underground when flows are high and recover it when growers and households need it most.
LDE provides managed aquifer recharge and aquifer storage and recovery engineering across the southern corridor. That spans feasibility and source-water work, aquifer suitability, the design of recharge trials, water-quality and clogging management, and ongoing operation, monitoring and consenting. We help growers, councils and developers test whether MAR fits their aquifer and source water, then design and monitor schemes that deliver.
Working under the Auckland Unitary Plan, our team handles takes, recharge and discharges together. For South Auckland clients, that means a practical look at underground storage for growth and horticulture alike. Talk to our South Auckland water team about your next project.
How our South Auckland team delivers managed aquifer recharge
In the south, managed aquifer recharge has two audiences: growers who depend on the Pukekohe and Franklin aquifers, and a growth corridor adding households fast. Both want more dependable water through summer, so our team tests whether recharge can help. We assess the source water that can be captured, whether the aquifer can accept and store it without harming existing users, and the water quality the scheme requires, then design the recharge method, the trial and the monitoring.
This builds on our managed aquifer recharge team and the water projects we run along the southern growth corridor, where horticulture and development share the same groundwater.
- Feasibility and source-water assessment for horticulture and growth
- Aquifer suitability assessment that accounts for existing users
- Recharge trial design and aquifer storage and recovery (ASR) testing in volcanic aquifers
- Water-quality and clogging controls that safeguard the groundwater
Water security and consenting in southern Auckland
A managed aquifer recharge scheme in the south is assessed under the Auckland Unitary Plan, administered by Auckland Council, with the take, the recharge and any discharge handled together and existing groundwater allocation taken into account. Recharge water has to meet national freshwater policy, so we design to recognised guidance.
- Ministry for the Environment freshwater policy and the National Policy Statement for Freshwater Management
- Water New Zealand good-practice guidance for managed aquifer recharge
LDE managed aquifer recharge in southern Auckland
LDE brings managed aquifer recharge and aquifer storage and recovery thinking to a part of the region where productive horticulture and rapid growth both rely on groundwater. Around Pukekohe and Franklin, and across the Drury and Flat Bush growth fronts, storing water for the dry season is one way to ease that pressure, and we help clients work through whether MAR suits their aquifer and source. The same capability supports our resources clients. You can see more of our regional water delivery on the projects page.
Common questions about managed aquifer recharge in South Auckland
How could managed aquifer recharge help South Auckland growers?
The Pukekohe and Franklin aquifers carry heavy summer demand from horticulture. Managed aquifer recharge can bank water underground when it is plentiful and recover it in the dry season, which may help take pressure off those aquifers, provided the geology and source water suit it.
Will recharging an aquifer affect existing bore users?
It can, which is why the assessment matters. We model how recharge and recovery interact with existing takes and groundwater levels, so a scheme supports the resource rather than disadvantaging neighbouring users. That analysis is also central to gaining consent under the Auckland Unitary Plan.
Who carries out LDE’s managed aquifer recharge work in South Auckland?
Chartered Professional Engineers from our team, supported by LDE water and groundwater specialists across the country.
What source water can be used for recharge here?
Recharge water might come from high winter stream flows, treated supply or other available sources, and each needs assessing for quality and reliability. We match the source to the aquifer and design any pre-treatment so the recharge protects the groundwater, which is part of how we work up a feasible South Auckland scheme.
