Excavation in Wainiha
Wainiha sits between Hanalei and Hāʻena along Wainiha Bay and the Wainiha Valley, with dense legacy cesspool inventory on parcels close to the river and shoreline. Every Hawaiʻi cesspool must be converted, upgraded, or connected to sewer by January 1, 2050 under Act 125.
Working on the ground in Wainiha
High water table near the Wainiha River mouth, heavy North Shore rainfall, one-lane bridge access limiting truck size, and SMA overlay across most coastal parcels.
What we run here
Cesspool-to-IWS conversion site work, drainage retrofits, driveway grading on valley parcels, and foundation excavation for rebuilds.
Planning urgency categories near Wainiha
The Hawaiʻi Department of Health groups cesspools into planning urgency categories based on proximity to drinking water, streams, the coastline, and sensitive ecosystems. These categories help homeowners and agencies decide where to convert first. They are not legal deadlines for individual properties.
A planning urgency category (not a legal deadline). These systems are generally closest to drinking-water sources, streams, wetlands, or the coastline, so the Hawaiʻi DOH prioritization tool flags them to plan first.
The only enacted statewide cesspool deadline under Act 125 and HRS 342D-72 is January 1, 2050. Priority 1 and Priority 2 are planning urgency categories, not legal deadlines or property-specific determinations. For your parcel's category, consult the Hawaiʻi Cesspool Prioritization Tool or the DOH Wastewater Branch.
Want help checking your property?
We can walk your parcel and review the DOH prioritization tool with you during our free site visit.
Request a Site VisitReady to break ground in Wainiha?
Call for a project-specific scope and estimate.