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Johnson County, Iowa
Environmental Services in Johnson County, IA
Environmental site assessments and construction-phase environmental support that keep transactions and projects moving without surprises. Johnson County is covered on a project basis through our Chicago, IL regional hub.
- Dispatched from
- Chicago, IL 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
- Johnson County, IA — Des Moines, Cedar Rapids, Davenport
- Coverage
- Iowa statewide · 27 regional hubs
- Technicians
- ACI- and NICET-certified field staff; licensed professionals in Iowa
- Call us
- (346) 420-5425
Scope
Environmental services in Johnson 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 Johnson County
Johnson County sits within a corridor of active university-adjacent development, agricultural land conversion, and older commercial properties — a combination that routinely surfaces environmental questions before a single shovel breaks ground. Agricultural histories mean potential agrochemical residuals in soil and shallow groundwater. Older industrial and commercial footprints in Iowa City and surrounding municipalities carry the possibility of petroleum and solvent impacts from prior uses. Lenders, title companies, and the Iowa Department of Natural Resources all have expectations that must be met on a defined schedule. Our firm dispatches environmental professionals to Johnson County from our Chicago regional hub to conduct Phase I and Phase II Environmental Site Assessments, support Iowa DNR voluntary cleanup inquiries, and provide construction-phase environmental monitoring — keeping transactions on track and projects compliant from due diligence through closeout.
Eastern Iowa's glacially derived soils — typically silty to clayey tills — can limit vertical migration of contaminants while allowing lateral spread in shallow aquifers, a factor that shapes both Phase II sampling strategies and remediation planning. Iowa's freeze-thaw cycles also influence when soil and groundwater sampling can be practically conducted, and scheduling should account for seasonal access constraints on agricultural parcels.
FAQ · Johnson County
How does Johnson County's agricultural land history affect a Phase II ESA scope?
Historically farmed parcels may warrant targeted sampling for pesticides, herbicides, nitrates, and fuel-storage residuals from on-site equipment operations. The Phase II scope is designed around the recognized environmental conditions identified in the Phase I. Soil sampling follows ASTM E1903 guidance, with laboratory analysis parameters selected to match the agrochemical use history documented during records review and site reconnaissance.
Does Iowa DNR need to be notified if contamination is discovered during Phase II work in Johnson County?
Iowa DNR notification thresholds depend on the contaminant, media, and concentration levels under Iowa Code Chapter 455B and associated administrative rules. If petroleum impacts exceed reportable quantities, the Iowa Comprehensive Petroleum Underground Storage Tank Fund or a voluntary cleanup program may become relevant. Our environmental professionals flag regulatory trigger points in their findings so your legal counsel and project team can determine the appropriate notification path.
Can you provide environmental oversight during grading or excavation if suspect soils are encountered on a Johnson County site?
Yes. Construction-phase environmental support includes on-site monitoring during earthwork when suspect materials — stained soils, petroleum odors, buried debris, or unknown fill — are encountered. Our field personnel can collect confirmatory samples, coordinate with the project team on segregation and disposal decisions, and document observations in a format suitable for regulatory reporting or owner records. Scheduling is project-based; coverage is dispatched from the Chicago hub.
Which office covers environmental in Johnson County, IA?
Field work in Johnson County is dispatched through the Chicago, IL regional hub, about 202 miles away. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large Johnson County projects.
Are the technicians you send to Johnson County certified?
Field sampling and testing in Johnson County are performed by our ACI- and NICET-certified technicians. Environmental engineering and professional services are delivered with professionals licensed in Iowa, coordinated under one proposal.
Scheduling & proposals
Need environmental services in Johnson County?
Call to schedule a technician, or send project documents for a written proposal.