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Industrial and natural hazards in Morigny-Champigny — July 2026
Hazard level in Morigny-Champigny
moderate
- ICPE (≤ 1 km) 3
- Flood zone (PPRI) No
- Radon potential 1/3 low
Summary of ICPE, Seveso, flood and radon hazards — detail and sources below. Always request the ERP before any offer.
Géorisques / IRSN
Industrial and natural hazards in Morigny-Champigny
In Morigny-Champigny, the overall industrial and natural risk score is moderate (composite ICPE, Seveso, flood plans, radon).
Diagnostic risques de votre logement
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Understanding hazards in Morigny-Champigny
The assessment of industrial and natural hazards in Morigny-Champigny crosses several official public bases: ICPE (Géorisques DGPR), Seveso sites, flood plans (PPRI), seismicity (BRGM) and radon potential (IRSN). Each of these families is detailed, quantified and sourced in the indicators above.
In practice, the town has 3 ICPE on average (1 km radius), of which an unrecorded share at the commune level in Seveso sites with major industrial risk. No flood plan (PPRI) zone identified. The radon potential is 1/3 low according to the IRSN classification.
For a purchase, the State of Risks and Pollutions (ERP) is mandatory and must be appended to the sale agreement. It lists all natural disaster orders (CatNat), PPR zones, and known polluted sites. To request systematically, ideally before the offer.
Sources: Géorisques (DGPR) — ICPE, Seveso, PPRI, BASIAS/BASOL. BRGM — seismicity, clay shrink-swell. IRSN — radon potential. ERP mandatory at sale (Environment Code L.125-5). The overall score is an NTYP composite (weighting of the dimensions above) — see our methodology.
Natural disaster history
4 declarations of natural disaster recognised in Morigny-Champigny. Latest declaration on 28/05/2016 (Inondations et/ou Coulées de Boue).
Recognised event types
- Inondations et/ou Coulées de Boue
- Mouvement de Terrain
A natural disaster declaration (CatNat) is an inter-ministerial decision that officially recognises that a town has been hit by a natural event of abnormal intensity (flooding, drought, ground movement, etc.). This recognition triggers the natural disaster cover of your home insurance contract: without it, the damage is not compensated on this basis.
A heavy history of declarations signals a recurring exposure to check before buying — particularly for drought and clay shrink-swell, which are sharply rising. The State of Risks and Pollutions (ERP), mandatory at sale, lists all of the town's CatNat declarations.
Source: GASPAR database (Géorisques / DGPR) — natural disaster declarations published in the Official Journal.
← View full report for Morigny-Champigny
— Your questions
Frequently asked questions
How to know if my address is concerned by a flood plan (PPRI)?
The State of Risks and Pollutions (ERP) is mandatory at sale and rental. The seller or landlord must give it to you appended to the agreement. You can also check directly georisques.gouv.fr with your address.
Seveso site within 500 m: danger?
An upper-tier Seveso site has a PPRT binding on building permits. The lethal effect zone is typically < 500 m, the serious-injury zone < 2 km. At 500-2000 m, risks are monitored (SAIP alert) but existing buildings remain insurable.
High radon: what to do?
Radon is a radioactive gas of geological origin, present in granitic subsoil (Brittany, Massif Central, Vosges). For levels > 300 Bq/m³, IRSN recommendations: enhanced ventilation, slab sealing, continuous measurements. Intervention cost: 500-5000 €.
How does home insurance account for hazards?
Natural disasters are covered mandatorily (12 % contribution of the multi-risk contract). Clay shrink-swell (RGA) is rising rapidly (climate change) and some areas see insurance refusals or high deductibles. Compare several insurers before signing.