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St. Tammany Parish, Louisiana
Environmental Services in St. Tammany Parish, LA
Environmental site assessments and construction-phase environmental support that keep transactions and projects moving without surprises. St. Tammany Parish is covered on a project basis through our Houston, TX regional hub.
- Dispatched from
- Houston, TX 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
- St. Tammany Parish, LA — New Orleans, Baton Rouge, Shreveport
- Coverage
- Louisiana statewide · 27 regional hubs
- Technicians
- ACI- and NICET-certified field staff; licensed professionals in Louisiana
- Call us
- (346) 420-5425
Scope
Environmental services in St. Tammany Parish
- 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 St. Tammany Parish
St. Tammany Parish sits at the intersection of rapid residential and commercial growth and a landscape defined by wetlands, pine flatwoods, and the hydrological reach of Lake Pontchartrain. That combination creates real environmental exposure on nearly every transaction and ground-disturbing project: historic agricultural and industrial uses, proximity to sensitive natural systems, and soils that can mask contamination in ways a visual inspection alone will not catch. Lenders, title companies, and the Louisiana Department of Environmental Quality all have expectations that must be met before closings occur or ground breaks. Our firm provides Phase I and Phase II Environmental Site Assessments, along with construction-phase environmental support, to keep those requirements from stalling your schedule. Coverage in St. Tammany Parish is dispatched on a scheduled and project-based basis through our regional hub network. Reports are produced under a documented laboratory and field quality system so the findings you receive are prepared for review.
St. Tammany Parish's high water table, seasonally saturated soils, and extensive wetland coverage mean subsurface investigation requires careful attention to sampling depth, groundwater interference, and proper delineation of fill versus native soil profiles. The parish's growth corridor along the Interstate 12 and U.S. 190 corridors has converted land with varied prior use histories, making records research a meaningful part of any site assessment rather than a formality.
FAQ · St. Tammany Parish
How does St. Tammany Parish's high water table affect subsurface sampling during a Phase II investigation?
Seasonally elevated groundwater in much of the parish can limit practical boring depth and complicate soil sample collection below the water table. Field personnel plan sampling locations and depths in advance, use appropriate equipment for saturated conditions, and document groundwater depth at the time of each boring. Soil sampling follows ASTM D1586 or ASTM D6151 depending on formation consistency, and groundwater samples are collected in accordance with ASTM D5092 monitoring well installation guidance where wells are installed.
Does Louisiana DEQ have its own cleanup standards that a Phase II report must reference for St. Tammany Parish sites?
Yes. Louisiana DEQ's Risk Evaluation and Corrective Action Program (RECAP) establishes the screening standards used to evaluate analytical results for soil and groundwater in Louisiana. A Phase II report prepared for a St. Tammany Parish site should benchmark laboratory results against current RECAP screening values for the relevant land use category. Our reports identify exceedances relative to those standards so your attorney, lender, or environmental consultant can assess liability exposure accurately.
We're developing a former agricultural tract near a bayou corridor in St. Tammany Parish. What historical records are most relevant to the Phase I scope?
Agricultural properties in the parish may have histories involving pesticide or herbicide storage, fuel tanks for irrigation equipment, and on-site waste disposal. The Phase I scope under ASTM E1527-21 includes review of historical aerial photographs, Sanborn maps where available, USGS topographic records, and agency database searches covering UST registrations, RCRA generators, and spill incidents. Proximity to a bayou corridor also warrants attention to any prior industrial discharge or drainage tile records.
Which office covers environmental in St. Tammany Parish, LA?
Field work in St. Tammany Parish is dispatched through the Houston, TX regional hub, about 321 miles away. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large St. Tammany Parish projects.
Are the technicians you send to St. Tammany Parish certified?
Field sampling and testing in St. Tammany Parish are performed by our ACI- and NICET-certified technicians. Environmental engineering and professional services are delivered with professionals licensed in Louisiana, coordinated under one proposal.
Scheduling & proposals
Need environmental services in St. Tammany Parish?
Call to schedule a technician, or send project documents for a written proposal.