G.M.E.P

Gestion et Maîtrise de l'Environnement et de la Pollution

Presentation guide · 13 software tools

The complete suite of 13 GMEP software tools in a single document

Environmental modelling, hydrogeology and health risk assessment: discover the scientific and technical detail of each of the 13 tools available, their reference standards and their deliverables.

Download the Dossier (PDF) Download the Technical Note (PDF)
13
Business software tools
available online
2,500+
Chemical substances
covered (EQRS)
3D
Overlay of soil · groundwater
· structures (3D_SSP)
100%
Web-based, no installation
or local maintenance
Overview
The 13 tools of the GMEP software suite
1
Contaminated Land — Risk assessment

EQRS Johnson & Ettinger (V7)

Human exposure to volatile organic compounds — vapor intrusion, inhalation, ingestion. Up to 2,500 substances, Monte-Carlo simulation with 10,000 iterations.

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2
Contaminated Land — HRA + Ecotoxicology

EQRS V9 + ECOTOX V9

Hazard Quotient, Concentration Index and Ecotoxicological QD for the aquatic and terrestrial compartments — food-chain methodology (Barnthouse, 2003). 104 substances.

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3
Contaminated Land — HRA + PFAS

EQRS V9 + ECOTOX V9 + HUMAIN Module

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.

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4
Contaminated Land — Groundwater transport

TSN — Soil-to-Groundwater Transfer

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).

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5
Contaminated Land — Groundwater transport

Soil → Groundwater → Abstraction Transfer

Domenico & Schwartz model (1987) of transfer and natural attenuation of dissolved pollutants between the soil source and a drinking-water abstraction point.

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6
Contaminated Land — Regulatory documentation

Conceptual Site Model

Generation of the Conceptual Site Model, supporting the Environmental Media Assessment and the Management Plan, with automatic structuring of sources / pathways / receptors.

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7
Contaminated Land — 3D Visualization · New

3D_SSP

Integrated 3D modelling: overlay of the soil pollution source, groundwater plume and site structures. Excavated-soil management plan module, PDF + JSON export.

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8
Contaminated Land — 3D Modelling · New

MSP — Soil Pollution Sources

3D mapping of the soil pollution source using IDW spatial interpolation (Shepard, 1968). Automatic calculation of the volume and surface area impacted per threshold.

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9
Hydrogeology

Porchet Test Modelling

Calculation of the in-situ permeability coefficient K (Porchet method) and automatic comparison with the results of GEP structure sizing.

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10
Hydrogeology

GEP Modelling — DLE & Water Act

Sizing of stormwater management structures and automatic generation of DLE / Water Act filings (IOTA, sections R.214-1).

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11
Hydrogeology

Groundwater Drawdown

Drawdown curves for a pumped aquifer — Theis equation (1935) and extensions (Cooper & Jacob, Hantush & Jacob, Boulton). Automatic IOTA classification.

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12
Hydrogeology · New

Drawdown V15.87

AI-assisted multi-layer modelling — 42 lithologies, up to 15 layers, Forchheimer/Dupuit formula, automatic generation of the Water Act Dossier.

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13
Hydrogeology · New

Monitoring Piezometers

Multi-campaign monitoring of piezometric levels (v2.9c), automatic interpretation of trends and flow direction by triangulation.

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Full documents
The scientific Dossier and Technical Note for the GMEP suite

GMEP tools Dossier

Complete scientific and technical presentation: detailed description, target audience, regulatory reference standards and deliverables of the GMEP suite.

Download the PDF

GMEP Differentiation Technical Note

Scientific positioning of the GMEP suite: methodologies, regulatory compliance and differentiating features of each tool compared with industry practice.

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A question about our tools?

Éric AZULAY — SSP Engineer (contaminated land) · Managing Director, G.M.E.P · SIRET 753 097 625 00010