West - aegean region Water resources Status of water quality Surface Water Biological assessment of the running water quality Groundwater Water resources The precipitation fallen in the region is from 490 to 742 l/m2, which account for 84%-154% of the annual norm. These figures for the last three years are as follows: 2000 from 240 to 669 l/m2, or 44% - 117% 1999 from 490 to 604 l/m2, or 90% - 104% 1998 from 473 to 647 l/m2, or 98% - 113% In 2001 the average sum of the precipitation of the reviewed 40 meteorological stations is 577 l/m3, 91.3% of the annual norm. The internal rivers outflow is 775.58 million m3 or 37% of the annual norm recorded at 2 HMtS (Struma River-Krupnik village, Mesta River-Momina Kula place). The water resources formed by river water under disturbed conditions for the region are 775.58 million m3, or 37% of the annual norm recorded at 2 HMtS (Struma River-Krupnik village, Mesta River-Momina Kula place). The characteristics of the water resources formed into the dam reservoirs are respectively: river inflow 79 million m3, or 44% of the annual norm; efficient water outflow 67 million m3; available capacity at the end of 2001 83.7 million m3 (usable capacity 39.1 million m3, or the usable capacity is 56% of the efficient capacity). The annual values of the natural river resources and their percentage on the annual norm fluctuate within the interval 55.44% (Struma River) 71.67% (Mesta River) (table 2.8). Their amount is 2,147.8 million m3, which accounts for 61.76% of the annual norm. For the last three years the respective values were: 2,201.25 million m3, 3,117.1 million m3, and 3,886.6 million m3. The surface water natural resources of the areas lacking permanent rivers are 117.6 million m3, which accounts for 61.83% of the annual norm. The last three years are characterized by the following resources: 120.6 million m3, 170.5 million m3, and 212.96 million m3. Totally for the region the surface water natural resources are 2,265.4 million m3, which accounts for 61.77% of the annual norm. The last three years are characterized with the following resources: 2,321.85 million m3, 3,287.6 million m3, and 4,099.56 million m3 (fig. 2.44). Table 2.8
The precipitation fallen in the region is from 490 to 742 l/m2, which account for 84%-154% of the annual norm. These figures for the last three years are as follows:
In 2001 the average sum of the precipitation of the reviewed 40 meteorological stations is 577 l/m3, 91.3% of the annual norm. The internal rivers outflow is 775.58 million m3 or 37% of the annual norm recorded at 2 HMtS (Struma River-Krupnik village, Mesta River-Momina Kula place). The water resources formed by river water under disturbed conditions for the region are 775.58 million m3, or 37% of the annual norm recorded at 2 HMtS (Struma River-Krupnik village, Mesta River-Momina Kula place). The characteristics of the water resources formed into the dam reservoirs are respectively:
The annual values of the natural river resources and their percentage on the annual norm fluctuate within the interval 55.44% (Struma River) 71.67% (Mesta River) (table 2.8). Their amount is 2,147.8 million m3, which accounts for 61.76% of the annual norm. For the last three years the respective values were: 2,201.25 million m3, 3,117.1 million m3, and 3,886.6 million m3. The surface water natural resources of the areas lacking permanent rivers are 117.6 million m3, which accounts for 61.83% of the annual norm. The last three years are characterized by the following resources: 120.6 million m3, 170.5 million m3, and 212.96 million m3. Totally for the region the surface water natural resources are 2,265.4 million m3, which accounts for 61.77% of the annual norm.
The last three years are characterized with the following resources: 2,321.85 million m3, 3,287.6 million m3, and 4,099.56 million m3 (fig. 2.44).
In the region, natural resources are formed from foreign territories (Yugoslavia, Macedonia) amounting to 197.5 million m3, which accounts for 52.44% of the annual norm. In the last three year they were respectively: 212.75 million m3, 333.6 million m3, and 433.4 million m3.
