Analysis Laboratory – The LDA53, is an advice service in Mayenne.
224, rue du Bas des Bois
BP 1427
53014 LAVAL Cedex
02.43.56.36.81
www.lda53.fr
LDA53 contributes to the preservation and improvement of human and animal health by screening, testing, analysing and advice. It has analysed well water for the last 35 years. LDA53 understands the structure and quality of the soil and the water in the department of Mayenne. They will listen to your questions and offer advice. LDA53 is approved by the Ministry of Health.
Laboratory experts are composed of 55 people adopting a golden rule: ‘Quality First’
The services are split into 4 areas –
· Animal health
· Food hygiene
· Hydrology
· Agronomy
The Ethics – Independence, professionalism, confidentiality – these are the values that LD53 defend each day.
Protection of Wells.
To assure the quality of water in private wells, along with the guarantee of a good supply by up holding the rules of cleaning and regular controls.
Domestic uses:
- Ÿ Drinking, food preparation, washing up
- Ÿ Showers, bathing, washing, washing clothes.
- Ÿ Other uses, flushing the toilet.
- Ÿ Washing cars, swimming pool, watering the garden.
Agricultural uses:
- Ÿ Watering plants
- Ÿ Watering live stock
- Ÿ Cleaning machinery
Why analyse your water?
Good quality water can preserve the health of the user. Bad quality water, containing microbes will affect the user’s health: gastric problems and hepatitis, especially in sensitive people, eg, old people, pregnant women, or people with general ill health.
Also, the presence of Iron and manganese can stain washing and sanitary equipment.Treatment of Wells.
Some definitions:
Ÿ Disinfection - treatment to kill micro-organisms
Ÿ Filtration - treatment to eliminate particles. Also a treatment to eliminate the presence of iron and magnesium
Ÿ Water softener - to lessen the hardness of water by ion treatment
Ÿ Osmosis - treatment to eliminate the presence of salt minerals and organisms.
Ÿ Demineralization - treatment to correct the aggressiveness of water.
Important: Rules.
If you want to use your well for domestic use, do not forget the following rules!
Taken from the following: Article L.1321 - 1 , Article L.1324.3, Arrete du 17 Decembre 2008, du code de la Santé Publique. Décret n° 2008-652 du 2 juillet 2008.
‘Any person who provides the public with water for human consumption, for a fee or free, in any form whatsoever, including ice-cream, is required to ensure that the water is safe to be consumed. It is prohibited to use the water for the preparation or storage of any goods intended for human consumption.’
‘As a landlord in the tourist or rental industry, if you make water from a private well available to drink to a third party, you do so at your own risk if you do not meet the requirements’
‘Sampling and analysis are performed by a laboratory approved by the Ministry of Health’
‘When using water for human consumption for a single family use, a water analysis of P1, with the exception of chlorine, defined in the decree of January 11th 2007 must be made and attached to the declaration’
| Utilisation of Water | Things to do | Analysis to be done |
| Water reserved for personal use or your family | Declaration with your Mairie, including water that flows into your Fosse septique | Analysis P1: examples - colour, odour pH, conductivity, chlorine, sulphates, ammonia, nitrates, micro-organisms at 22º and 36° |
| Water used to feed a community, third party or an agricultural food company | Authorisation needed from The Prefecture | Complete analysis RP Colour, odour,pH, conductivity, chlorines, sulphates, ammoniua, nitrates, arsenic, calcium, etc, E-coli etc |
