The paper analyses results of measurements of precipitation amounts in the Widawa River basin in the multi-year period 1956-2012. Analysed were annual, monthly and daily precipitation totals and the numbers of days with precipitation in a year and in a month. Trends of changes were determined and extreme monthly and daily precipitation totals were analysed. Annual precipitation totals over the analysed multi-year period were very strongly diversified. Despite a considerable spread of results, the distribution in time did not reveal any clear tendency of changes, the trend line was almost horizontal. The number of days in a year with precipitation revealed an obvious decreasing trend, particularly within the fraction of days with precipitation <1mm. Average daily precipitation obtained from the ratio of annual precipitation total and the number of days with precipitation showed a growing tendency. December was the month in which the highest number of days with precipitation was noted during the multi-year period 1956-2012. Considering the fewest number of days with precipitation, similar results were obtained for three months. In May and September the least number of days with precipitation was registered eleven times. Only once a less often mentioned number of days occurred in October. A summary ...
The main aims of the paper are legal requirements demanding to construction and operation of domestic treatment plants. The publication consists of two parts. In these part of article (2nd part) the limitation arising a.i. from local development plans, water protection zones, according to constructions of domestic wastewater treatment plants are pointed. Technical requirements that should be met by locating domestic wastewater treatment plant in real property area are presented. The standards of treated wastewater quality, discharged into water or soil including the requirements to be met depending of location (in or out of agglomeration) are shown. Additionally, cases in which operating application of domestic wastewater treatment plant to the mayor is required, are listed. It was concluded, that part of the domestic wastewater treatment plants, especially those located in agglomeration area, will not met present requirements of the effectiveness of wastewater treatment discharged into surface water, water facilities or soil. In the first part of article (Jawecki i in. 2016) the definition and basic types of domestic wastewater treatment plants was described, required permissions, as well as cases in which it is possible the construction of domestic wastewater treatment plants. ...
