Wastewater passes through Mata, where solids are captured and treated. The remaining liquid continues on for on-site disposal. In most cases, this can be handled by the property's existing cesspool, provided it meets the criteria to be redesignated as a seepage pit. If the property doesn't have a viable cesspool, Mata can instead pair with a traditional leach field, mounded system, or other appropriate disposal system.

‍Cesspool to Seepage Pit
Hawai‘i Department of Health regulations allow a cesspool to be redesignated as a seepage pit once primary treatment is installed upstream. To qualify, the cesspool must pass a structural integrity inspection and an infiltration test confirming it still drains properly. Because a new leach field isn't automatically required, this redesignation can save property owners significant cost when upgrading to meet the Cesspool Conversion Mandate.