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Negratín carries out the operation and maintenance of drinking water treatment and distribution plants, sewage and drainage networks, rain- and waste water purification plants and industrial facilities, which we can divide into 5 types:
- O & M of drinking water treatment plants.
- O & M of process water treatment plants.
- O & M of distribution networks and facilities.
- O & M of drainage networks and installations.
- O & M of rain and waste water purification plants.