[ Water and drinking water treatment services, water purification services, wastewater decontamination and purification services, treatment of waste, namely, of refuse, of industrial greases as transformation, of sludge and ash from urban and industrial purification stations; waste and refuse recycling services; soil decontamination services of hazardous materials; treatment of waste produced by individuals, communities and companies public or private, of ordinary, special, solid, liquid, hazardous waste and information in these fields; waste purification services, soil decontamination services of hazardous materials and polluted soil, waste and refuse disposal services; waste and refuse incineration services, namely, disposal of toxic industrial waste, of non toxic industrial, household, hospital, ordinary and special waste ]

[ Rental of videotapes; video tape film production; rental of motion pictures; organization and conducting of colloquiums, conferences, congresses, seminars, symposiums in the field of water treatment, water supply and waste treatment; education, namely, providing mentoring, tutoring, classes, seminars and workshops in the fields of water treatment, water supply and waste treatment; training in water treatment, water supply and waste treatment; rental of sound recordings; organization of exhibitions for cultural or educational purposes; publication of books; organization of educational competitions; film production; production of films on videotapes or on digital disks; publication of texts other than advertising texts; educational services, namely, organization of debates of ideas in the field of water treatment education ]

Water quality control services; scientific and industrial research services in the field of environmental protection; laboratory research services in the fields of water and water treatment and purification; services of chemical analysis; chemical research; scientific research consultancy, engineering project study; preparation of non-business plans and engineering works, namely, drawing up of plans and engineering drawings not for construction in the fields of water and water treatment; laboratory research services in the fields of treatment of industrial, household, hospital and special waste, refuse, sludge and ash, of recovery of industrial, household, hospital and special waste; laboratory bacteriology research services; computer programming; computer services, namely, development, design and updating of computer software and software packages; technical consulting and advice in the field of computing; computer rental; design of computer systems and telecommunication systems; scientific and industrial research services for the development and evaluation of the performance of processes and products for physico-chemical treatment of water; conducting of scientific and technical feasibility studies for the development and evaluation of the operational performance of installations for treatment of drinking or industrial water, for treatment of household or industrial wastewater, as well as for treatment of physico-chemical or biological fluids or sludges; scientific and industrial research services in connection with environmental protection for waste and refuse collection, transport, treatment, cleaning, storage and recovery; engineering services; engineering in the fields of design and construction of industrial and urban centers and units for collection, sorting, storage, treatment, recovery and disposal of waste and refuse; consulting services in the field of environments assessment, namely, industrialization and natural resource development; information on the environment, study services, namely, feasibility studies with regard to economic, social and environmental implications or urban, industrialization and natural resource exploitations especially relating to water