The procedure of designing drainage rates and geologic safety threshold in case of urban industrial area underflooding

Summary

The regulatory documents specify the indicators of the ground water critical state depending on the development pattern of urban industrial areas. Dividing the areas according to the development pattern is presented in general without regard to the RF Town Planning Code. The analysis of published data and regulatory requirements showed the necessity of specifying the geologic safety threshold in case of underflooding in order to validate the drainage rate of the urban industrial areas. The concept of designing geologic safety threshold on the basis of the geohazard risk theory with the evaluation of underflooding negative effect level is set out. The design functional connections were obtained and the procedure of designing drainage rates, acceptable ground water levels and geologic safety threshold in case of underflooding of different urban industrial areas classified as provided by the RF Town Planning Code was developed.

Key words

risk assessment , drainage rates , geologic safety threshold , negative effect level , territory underflooding

Methodological principles of risk assessment in case of chemical ground water pollution

Summary

Risk assessment is recognized as a basis in tackling environmental protection issues practically all over the world. The methodological principles of risk assessment in case of chemical ground water pollution are considered. Basic algorithms for the main risk assessments related to ground water pollution are formulated; area vulnerability categories are defined depending on the response to the impact of negative processes in ground waters, methodological area vulnerability ranking in working out environmental measures is developed. The methodology of risk assessment of ground water pollution imposes exclusive demands on predicting pollution prevalence. In this connection a concept analysis of the advanced software in terms of the adaptation to the risk assessment in case of ground water pollution was carried out.

Key words

methodology , risk assessment , ground water pollution , area vulnerability , hydrogeochemical simulation