Contaminated land, hydrogeology, soil and land quality: purpose, features, calculation notes, parameters, links between tools and worked examples for each tool, with 2026 prices.
Human exposure to volatile organic compounds — vapor intrusion, inhalation, ingestion. Up to 2,500 substances, Monte-Carlo simulation with 10,000 iterations.
Discover the tool →Hazard Quotient, Concentration Index and Ecotoxicological QD for the aquatic and terrestrial compartments — food-chain methodology (Barnthouse, 2003). 104 substances.
Discover the tool →Cumulative human exposure to PFAS according to EFSA (2020) — four exposure pathways (plant, livestock, aquatic) and calculation of the Bioaccumulation Factor validated on field data. 47 Tier 3 substances.
Discover the tool →Transport and natural attenuation from soil → groundwater → drinking-water abstraction, Domenico & Schwartz model (1987) coupled with the Hub'eau API. Residual concentration Cc(x) and dilution-attenuation factor (DAF).
Discover the tool →Domenico & Schwartz model (1987) of transfer and natural attenuation of dissolved pollutants between the soil source and a drinking-water abstraction point.
Discover the tool →Generation of the Conceptual Site Model, supporting the Environmental Media Assessment and the Management Plan, with automatic structuring of sources / pathways / receptors.
Discover the tool →Integrated 3D modelling: overlay of the soil pollution source, groundwater plume and site structures. Excavated-soil management plan module, PDF + JSON export.
Discover the tool →3D mapping of the soil pollution source using IDW spatial interpolation (Shepard, 1968). Automatic calculation of the volume and surface area impacted per threshold.
Discover the tool →Calculation of the in-situ permeability coefficient K (Porchet method) and automatic comparison with the results of GEP structure sizing.
Discover the tool →Sizing of stormwater management structures and automatic generation of DLE / Water Act filings (IOTA, sections R.214-1).
Discover the tool →Drawdown curves for a pumped aquifer — Theis equation (1935) and extensions (Cooper & Jacob, Hantush & Jacob, Boulton). Automatic IOTA classification.
Discover the tool →AI-assisted multi-layer modelling — 42 lithologies, up to 15 layers, Forchheimer/Dupuit formula, automatic generation of the Water Act Dossier.
Discover the tool →Multi-campaign monitoring of piezometric levels (v2.9c), automatic interpretation of trends and flow direction by triangulation.
Discover the tool →On-site wastewater treatment under NF DTU 64.1: Porchet test import, measured / theoretical / BRGM geological map cross-check, system selection and sizing, SPANC report.
Discover the tool →Aggressiveness of groundwater and soil gas towards foundations: XA classes (EN 206+A2/CN, FD P18-011) at each structure, from contaminated land data and groundwater levels.
Discover the tool →Land prospecting and pollution risk: plots of 2,000 to 10,000 m², ICPE / BASIAS / BASOL / SIS history, 0–100 score. Trigger for contaminated land studies.
Discover the tool →42 pages · October 2026 edition · 14 detailed sheets, links diagram, French regulations explained, glossary, prices and contact details.
Download the PDF41 pages · édition octobre 2026 · the original French edition of the guide.
Download the PDFÉric AZULAY — SSP Engineer (contaminated land) · Managing Director, Green Urban Soils · SIREN 909 240 376
