Defensible Geostatistics & GeoAI — Delivered as Subcontract Support or Direct Engagement
PGeostat LLC provides expert geostatistical and GeoAI consulting for environmental, public health, and exposure studies where methodological defensibility is critical. We deliver quantified uncertainty, scale-consistent predictions, and regulator-ready results beyond maps that look right.
- Pre-submission methods check: identify vulnerabilities before agency or peer review.
- Rapid technical review: defensibility memo + corrective actions (short-cycle engagements).
- Delivery support: reproduceable workflows, uncertainty reporting, and reviewer-ready documentation.
Typical engagements support decisions reviewed by EPA and state agencies, peer reviewers, courts, and responsible parties—where oversimplified statistics or unvetted GeoAI models are not acceptable.
What We Do
Learn moreWe provide methodologically rigorous spatial statistics and GeoAI -not default software settings. Typical engagements range from targeted technical reviews to full-scale modeling and advisory retainers.
Defensible Exposure Modeling
Advanced spatial modeling of environmental contaminants (air, water, soil) with uncertainty you can defend.
- Ordinary, Poisson, and indicator kriging (2D,3D, multivariate)
- Exceedance probabilities and risk mapping
- Simulation-based uncertainty propagation for exposure assessment
- Change-of-support / disaggregation (point and areal data)
GeoAI & Machine Learning Done Correctly
Independent evaluation and development of spatial ML/GeoAI models with explicit spatial dependence and uncertainty.
- Spatial autocorrelation-aware model design
- Uncertainty estimates (not only point predictions)
- Benchmarking against geostatistical alternatives
- Model validation and defensibility documentation
Regulatory & Litigation Support
Technical review and expert support where methods will be questioned.
- EPA and state agency submissions
- PRP and environmental liability assessments
- Peer review preparation and rebuttal support
- Expert support for challenged analyses
Methods Review & Vulnerability Assessment
Rapid expert audits identifying weaknesses vulnerable to regulatory or legal challenge.
- Trend detection and temporal inference review
- Sampling bias and support-change pitfalls
- ML/GeoAI overconfidence and calibration issues
- Clear corrective actions and defensibility memo
Why PGeostat LLC
We focus on what fails under scrutiny
We identify and remediate methodological weaknesses that often emerge during agency review, peer review, or adversarial evaluation.
Depth, not templates
Our methods are grounded in peer-reviewed geostatistics and spatial statistics not generic workflows or default tool settings.
Bridging science and decisions
We translate advanced spatial analysis into clear, defensible conclusions decision-makers can justify with confidence.
Strong academic credentials
Dr. Goovaerts is an internationally recognized authority whose 1997 textbook remains one of the most highly cited references in the field supporting rigorous, defensible geostatistical practice in regulatory, legal, and expert-review settings.
Experience
We have provided defensible technical consulting on high-profile matters, including work related to the Flint Drinking Water Crisis and the Deepwater Horizon oil spill.
EPA-Ready Technical Expertise
PGeostat has extensive experience working with EPA teams and their technical reviewers, delivering transparent, reproducible geostatistical analyses aligned with regulatory expectations.
Who We Work With
PGeostat LLC partners with organizations that need independent, regulator-ready spatial analysis.
Environmental consulting firms
Support for site investigations, risk assessment, and defensible mapping.
Public health agencies
Exposure modeling and uncertainty communication for surveillance and interventions.
Academic research teams
Methods development, validation, and publication-ready analysis workflows.
Law firms & expert teams
Independent review, technical critique, and expert support in contested matters.
NGOs & EJ initiatives
Transparent, uncertainty-aware analyses that withstand methodological challenge.
Responsible parties / PRPs
Defensible analyses for negotiation, remediation planning, and oversight response.
How Engagements Typically Begin
Focused diagnostic
Most clients start with a short-cycle engagement such as a regulatory vulnerability review, a GeoAI audit, or a pre-submission methods check.
Defensible deliverable
We provide a clear technical memo and/or reproducible workflow with quantitative uncertainty and validation, aligned to your decision context and review environment.
Deeper collaboration
Diagnostic projects often evolve into full modeling support, ongoing advisory retainers, or expert support through regulatory and peer-review cycles.
Team
Senior geostatistics leadership
PGeostat LLC is led by a senior geostatistician with decades of experience in multivariate geostatistics, spatial epidemiology, and environmental risk modeling, including work supporting funded research, regulatory submissions, and peer-reviewed publications.
Start a conversation
If your project involves spatial data with real consequences, we should talk. Share your objectives, data context, timelines, and the review environment (regulatory, peer review, litigation).
Email: goovaerts.pierre@gmail.com
Phone: 734-668-9900
Location: United States | Remote engagements worldwide