The showers of the last few days have not changed anything. In Tarn-et-Garonne, river flows have dropped significantly after a dry spring and the recent heat wave. The prefect has just issued a decree limiting water withdrawals which comes into force this Saturday, June 25 at 8 am.
The drought is gaining ground in the Tarn-et-Garonne and it is not the rainy and stormy passages of recent days that have changed the situation. “During the last decade, the episode of heat followed by the heat wave has caused the flow rates of all the rivers to drop, including on the major hydraulic axes”, notes the prefecture. She informs that “low water support was activated on Monday on the Tarn (5.5 m3 / second) and reinforced on the Aveyron, the Tescou and the Neste system”. Thus, the prefect of Tarn-et-Garonne issued a decree on Thursday limiting water withdrawals which will take effect this Saturday, June 25 from 8 am.
This decree concerns, to varying degrees, almost all of the 195 municipalities in the department. Only 10 of them are not subject to any restriction measures for the time being: Puylagarde and Espinas in Quercy-Rouergue; Auterive, Gimat, Goas, Gramont, Marignac and Maubec in Lomagne; Gasques and Saint-Clair in the Deux-Rives.
What does this text provide?
2 days a week ban (level 1B) on watercourses, including their tributaries and accompanying aquifers: non-replenished Lère basin, Lendou basin, Lambon basin, Petite Barguelonne basin.
Prohibition of 3 and a half days per week (level 2) on watercourses, including their tributaries and the accompanying aquifers: small Aveyron tributaries, upstream Lemboulas basin, small tributaries of the Tarn, Sère basin, upstream Barguelonne basin, ‘Auroue, small tributaries of the Garonne.
Total ban on water withdrawals (level 3) on watercourses, including their tributaries and the accompanying aquifers: non-replenished Tescou basin, Lupte-Lembous basin, Séoune basin.
The prefecture specifies that “following the production of fodder in the first cut and in coherence with the derogation Ukraine – grazing or mowing/cultivationself-consumed fodder maize is included in the list of special crops giving right to a partial derogation for irrigation”.
Measures concerning individuals, communities and accommodation structures
Restrictions conform to the level and areas of the paragraph above. They apply:
- at municipal level when the municipality is concerned, partially or totally, by a level of limitation or prohibition. The most restrictive level of restrictions prevails;
- without distinction of the sampling environment: surface water (watercourse, water body) and groundwater (accompanying groundwater, disconnected groundwater). An exception is made for those living near large recharged watercourses (Garonne and canal, Tarn, Aveyron, Gimone, Arrats) which can continue to take without restriction in large rivers as long as these are not subject to restriction.
Total bans in Montauban and Moissac
On the map provided by the prefecture, three levels of restrictions apply, depending on the hydrological situation of the municipalities. The measures for individuals, communities, hotels and private residences are the same for levels 2 and 3.
- level 3 (in red on the map): ban on taking samples from 8 a.m. to 8 p.m. to water vegetable gardens and greenhouses; total ban on watering sports fields, lawns and green spaces, filling ornamental lakes and swimming pools (even the upgrading of swimming pools is prohibited in level 3 municipalities such as Montauban and Moissac) and wash vehicles, roofs and buildings.
- level 2 (in orange on the map): measures identical to level 3.
- level 1B (in yellow on the map): ban on taking samples from 12 p.m. to 8 p.m. to water vegetable gardens and greenhouses; ban on watering sports fields, lawns and green spaces from 8 a.m. to 8 p.m.; total ban on filling recreational water bodies and washing vehicles, roofs and buildings. For swimming pools, complete filling is prohibited but you can proceed to a daily upgrade of your pool.