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Maui County, Hawaii
Environmental Services in Maui County, HI
Environmental site assessments and construction-phase environmental support that keep transactions and projects moving without surprises. Maui County is covered on a project basis through our Sacramento, CA regional hub.
- Dispatched from
- Sacramento, CA regional hub · project-based mobilization
- Lead time
- Set in the proposal, with mobilization planned around your pour and earthwork schedule
- Laboratory
- Sugar Land, TX laboratory under chain of custody, or a mobile laboratory for large projects
- Reporting
- Reviewed and issued under a documented quality system; formatted for owner, engineer, and building-official review
- Serving
- Maui County, HI — Honolulu, Pearl City, Hilo
- Coverage
- Hawaii statewide · 27 regional hubs
- Technicians
- ACI- and NICET-certified field staff; licensed professionals in Hawaii
- Call us
- (346) 420-5425
Scope
Environmental services in Maui County
- Phase I Environmental Site Assessments for acquisitions and refinancing
- Phase II subsurface sampling when a Phase I identifies recognized environmental conditions
- Construction stormwater support: SWPPP compliance inspections
- Soil management screening for export and import of fill material
Full scope, standards list, and pricing basis: Environmental Services.
Local conditions
Environmental conditions in Maui County
Construction and development in Maui County carries environmental obligations that differ from most mainland markets. Hawaii's history of plantation agriculture—sugar and pineapple cultivation across much of the valley floors and slopes—left behind a legacy of pesticide and herbicide applications in soils that are now being redeveloped for residential, resort, and commercial uses. Proximity to coastal resources, the presence of basaltic soils with varying permeability, and state and county permitting frameworks that layer on top of federal requirements all add complexity to due diligence and construction-phase compliance. Our firm provides Phase I and Phase II Environmental Site Assessments, soil and groundwater sampling support, and construction-phase environmental monitoring to keep transactions from stalling and projects from encountering regulatory surprises mid-schedule. Coverage in Maui County is dispatched on a scheduled and project-based basis, coordinated through our Sacramento regional hub, ensuring that the right personnel and equipment are mobilized for each site visit without unnecessary delay.
Maui County's agricultural land-use history and volcanic soil profiles mean that pre-development environmental due diligence often warrants careful review of historical land use records; areas formerly under plantation cultivation may carry residual agrochemical concerns that influence Phase II sampling scope. Hawaii's year-round rainfall and trade-wind patterns can affect soil moisture conditions and the behavior of subsurface contaminants, both of which are relevant considerations when scoping and scheduling field investigation work.
FAQ · Maui County
Does Hawaii have its own environmental due diligence requirements on top of the ASTM E1527-21 standard for Phase I ESAs?
ASTM E1527-21 sets the federal All Appropriate Inquiries baseline, but Hawaii transactions and state-regulated sites may involve additional review under Hawaii Revised Statutes Chapter 128D, the Hawaii Environmental Response Law. Lenders and county agencies sometimes request scope additions addressing Hawaii-specific recognized environmental conditions. Your environmental professional should confirm which regulatory layer applies before the scope is finalized.
Our Maui site was previously used for sugarcane or pineapple farming. How does agricultural legacy affect an ESA scope?
Historical plantation agriculture on Maui is a commonly identified recognized environmental condition during Phase I review. Organochlorine pesticides, fumigants such as ethylene dibromide, and herbicides applied over decades can persist in volcanic soils. A Phase I finding in this category typically leads to a targeted Phase II scope under ASTM E1903-19, including soil sampling designed around historical application areas and crop-rotation records.
What environmental considerations come up during grading and earthwork on Maui construction sites?
Construction-phase environmental support on Maui often involves monitoring for unanticipated soil conditions, including staining, odors, or debris encountered during mass grading. Hawaii Department of Health oversight may be triggered if affected soil is exposed. Our field technicians document observations, collect samples for laboratory analysis, and coordinate with the project team on notification requirements, helping keep the schedule moving while maintaining compliance with applicable state and county protocols.
Which office covers environmental in Maui County, HI?
Field work in Maui County is dispatched through the Sacramento, CA regional hub, about 2418 miles away. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large Maui County projects.
Are the technicians you send to Maui County certified?
Field sampling and testing in Maui County are performed by our ACI- and NICET-certified technicians. Environmental engineering and professional services are delivered with professionals licensed in Hawaii, coordinated under one proposal.
Scheduling & proposals
Need environmental services in Maui County?
Call to schedule a technician, or send project documents for a written proposal.