THE PROBLEMS OF DRINKING WATER SUPPLY TO MARIUPOL AND PROPOSALS TO SOLVE THEM THROUGH THE USE OF GROUNDWATER (UKRAINE)

• Дата: 2020
• Автори: Shestopalov, V.M., Stetsenko, B.D., Rudenko, Yu.F.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Institute of Geological Sciences, NAS of Ukraine 2020
• Теми: підземні води; крейдово-палеогеновий водоносний комплекс; математичне моделювання; Маріупольське родовище підземних вод; Ялинське родовище підземних вод; експлуатаційні запаси; якість підземних вод; 556.332(477); подземные воды; палеоген-меловой водоносный комплекс; математическое моделирование; Мариупольское месторождение подземных вод; Ялынское месторождение подземных вод; эксплуатационные запасы; качество подземных вод; groundwater; Cretaceous-Paleogene water-bearing complex; mathematical modeling; Mariupol groundwater deposit; Yaly groundwater deposit; safe yield; quality of groundwater
• Онлайн доступ: http://geojournal.igs-nas.org.ua/article/view/196974
• Назва журналу: Geological journal

 The results of studying the possibility for drinking water supply of Mariupol by groundwater in case of loss of its main modern source of fresh water — Siversky Donets river due to possible aggressive actions of the Donetsk separatists are presented. For this, the groundwater resources of the Mariupol deposit were first studied to solve the problems of supply of Mariupol with drinking water. A hydrogeological model of this deposit has been created for it, on which the structure of water exchange and the sources of formation of groundwater operational resources have been studied. It has been shown that within this deposit, groundwater with mineralization not exceeding 1.5 g/dm3 is found sporadically and their operational reserves are very small. Safe yield of industrial water with mineralization of more than 1.5 g/dm3 are limited to 40 thousand m3/day, which is also insufficient to satisfy Mariupol Subsequently, the possibilities of drinking water supply to Mariupol due to fresh groundwater of Cretaceous and Paleogene water-bearing complex of Yaly deposit, located 60—65 km northwest of Mariupol, were studied. A hydrogeological model of the Yaly groundwater deposit has been created, on which the structure of the water exchange and sources of the formation of groundwater exploitable resources of the Ivanivka and Zachativka promising areas have been studied. It is shown that this water-yielding complex has fresh groundwater resources sufficient to provide drinking water to Mariupol, Volnovakha and other settlements around Yaly deposit, but there is also a risk of a gradual deterioration of the groundwater quality of the Zachativka area due to the pulling of brackish water from other aquifers. The influence of brackish groundwater from the Precambrian crystalline basement and the Quaternary aquifer outside the Konka-Yally depression on the water quality of promising sites of the Yaly deposit is estimated. Various layouts of producing wells and the intensity of water withdrawal from them to preserve its quality are considered. It is concluded that it is promising to transfer part of the exploitable groundwater resources of the Zachativka area to the watershed between the Zachativka and Ivanivka areas or several kilometers downstream of Mokri Yaly river. If the aforementioned option for optimizing water withdrawal is rejected, the authors of the article put forward a proposal to reapprove the safe yield of groundwater of the Ivanivka and Zachativka areas, that is, to increase it at the Ivanivka area by about two times, and decrease it by about two times at the Zachativka area. Waters from Ivanivka and Zachativka areas for drinking water supply of Mariupol must be mixed.