Cabinet of Ministers Regulations No 515 Riga, June 1, 2004 (pr. No 33 25) amendments to the Cabinet of Ministers of 2 May 2000, the provisions of the "rules on no 168 et seq of Latvia LBN 005-99" rules "in construction engineering studies ' Issued in accordance with article 2 of the law on construction of the fourth draw in the Latvian et seq LBN 005-99" rules "in construction engineering studies (approved by Cabinet of Ministers of 2 May 2000, the regulations No 168" rules for the Latvian et seq of the LBN 005-99 "rules" in construction engineering studies ", Latvian journal, 2000, 164./165.nr.; 2003 67. No.) the following amendments: 1. Delete paragraph 16, the word and the number "and 2". 2. Add to 56.1. subparagraph after the word "the" with the words "water and water courses." 3. Make the following paragraph 56.4.: "the structure of the tracing line 56.4.;". 4. Add to the introductory part of paragraph 58, after the word "the" with the words "water and water courses." 5. Replace the words "paragraph 58.2 bar" with the word "line". 6. Express 59 the following: "59. Water and water depth measured by profile lines. The distance between profiles and height (depth) of the measuring points depending on the purpose of engineering studies determine the technical task. " 7. Make Chapter 4 by the following: "4. the Air Research 168. Air the research mission is to provide the land planning, buildings and premises for the execution of civil design and structure the information necessary for the operation and data on climatic conditions of the site and of the hydrological regime of surface ūdensobjekt. 169. Air research carried out to obtain data on: 169.1. programmable areas of functionality and development perspective; the projected site of 169.2. inženierinfrastruktūr and the placement of objects and need inženieraizsardzīb; 169.3. sensitive areas (e.g., flooding, wind and water erosion); 169.4. required design parameters of structures, and sustainability; 169.5. structure operating conditions; 169.6. water and atmospheric protection and monitoring. 170. in the research clears Air: 170.1. climatic conditions and some meteorological characteristics; 170.2. hydrological conditions (e.g., water, watercourses and coastal hydrological regime); 170.3. hidrometeoroloģisko processes and phenomena. 171. in Air reconnaissance of the site is: the representative of 171.1. air element and the characteristics of the phenomenon of choice; 171.2. performance of surface ūdensobjekt gauge and observation of the data collection, analysis and compilation; 171.3. rekognoscējoš a survey of the research of the district; 171.4. information collection, analysis and collection of data on extreme phenomena hidrometeoroloģiskaj; ūdensobjekt morfometrisk surface of 171.5. measurements; 171.6. determination of water quality laboratory; surface ūdensobjekt of 171.7. hydrological mode observational temporary observation points or items; 171.8. hydrological estimates size; ūdensobjekt bottom and 171.9. transformation of coastal surveillance (monitoring). 172. the Air Research and composition work, depending on the type of site, design safety degree (importance) area air research and design stage determine the air research programme (statement). 173. Spatial planning and civil design of buildings and premises are required to set out in table 2 of meteorological elements and characteristics of the phenomenon and set out in table 3 of the hydrological regime of surface ūdensobjekt characteristics. 2. table No. BC elements and phenomenon of Meteorological characteristics 1. Air temperature each month's average air temperature of ratūr Tempe the absolute maximum for us and mention The coldest and the hottest month average temperature characteristic of the period of 24-hour average temperature of 2. Air humidity daily average water vapour partial pressure in air relative humidity and moisture range 3. Monthly and annual rainfall, rainfall amount and distribution of snow cover thickness during the appearance, in, disintegration and extinction time precipitation intensity 4. Wind wind direction and wind speed of recurrence 5. Solar radiation and low heat mode the solar radiation on different oriented surfaces bottom freezing depth average and the biggest 0 0 c tem peratūr depth soil 6. Atmospheric phenomena of icing and frost-weight on the wire, the icing layer Kailsal regulations, snowfall, storms and rainfall recurrence periods table 3 no PO box Ūdensobjekt characteristics of hydrological regime of level 1 mode, the highest , lowest and the average water table 2. Run-off mode the maximum, minimum and average flow rate of runoff volume, layer, and the factor module currents speed 3. Thermo mode daily water temperature of svār and turnover this year of 4. Ice water and watercourses mode behind salšan, the ledstāv, the ice break and walking time to Melt in the thickness of the ice cover movements and ice congestion 5. Hidroķīmisk water treatment chemical, physical and terioloģisk characteristics of buck 6. Solids and processes of suspended and bottom dibensaneš volume and sink rate of water turbidity 7. Lake water balance
Water precipitation, pietec, konden sācij, runoff and evaporation 8. Mire hydrological regime of groundwater levels and runoff information about 174. meteorological characteristics of elements and phenomena using the Latvian et seq of LBN 002-01 "Būvklimatoloģij", as well as representative meteorological station observations and positions. 175. To get information on the hydrological regime of surface ūdensobjekt and hidrometeoroloģiskaj phenomena of extreme use: 175.1. earlier work carried out engineering studies reports (reports), archive material and scientific technical publications; 175.2. the air station and published items in the observation data; 175.3. latest unpublished air station and observation data; 175.4. evidence of population; 175.5. the structure and details of the services concerned emergency caused by adverse conditions in the air. 176. Information about the surface hydrographic network of the ūdensobjekt, the morfometrisk, drainage and catchment of surface conditions resulting studied areas survey and rekognoscējoš, as well as determine the scale topographic maps and plans. 177. The water quality, chemical, physical and bacteriological characteristics of discovery or take water samples to correcting, laboratory methods, analysis, and evaluate the results thereof. 178. in order to determine the surface of the bed and the coast of the ūdensobjekt transformation processes in the long period of observation networks and be carried out observations (monitoring). 179. the hydrological parameter estimates for the size of the premises concerned to design regulatory framework būvnormatīvo or the applicable standards set out in the annual exceedance probability (collateral) is calculated using the method set out in table 4 or other reasonable means. table 4 no PO box main hydrological parameters estimates of the size of the hydrological parameter detection techniques 1. Water level and current speed measurements under representative hydrological, water level and flow rate measurement in a temporary post in the bottom morfometrisk measurements and hydraulic calculation of water flow rate 2 Medium and large rivers (with pool area and over 2000 km2)-the estimate of the size of the interpolēj representative hydrological posts, smaller rivers-the Latvian territory in certain empirical relationships or by analogy method of transmitting items of representative hydrological data (if any)


180. to river level item could be considered to be representative, it must meet the following requirements: 180.1. the water level measurements on a regular basis (at least twice a day) is made sufficiently long (maximum water level by continuous observation line is longer than 25 years); 180.2. the relationship between the level of the item and the representative of the provisional post are statistically significant (at least the confidence level 95%); 180.3. between the water level and studied under a direct hydraulic connection. 181. to River hydrological item could be considered to be representative, it must meet the following requirements: 181.1. site and the location of the item between the hydrological and hydrological conditions are such that the required characteristics obtained item can be attributed to the precise place; 181.2. determination of the maximum flow rate continuous observation line is longer than 25 years; 181.3. other hydrological observation parameter line is so long that you can create a secure connection with a support post. 182. the representative of river hydrological item, take note: 182.1. run-off formation uniformity (similarity); 182.2. similarity of climatic conditions; 182.3. factors that can change the size of the natural River drainage (drainage, water intake or discharge). Qualifying course and a water basin in the basin area of the representative items must not differ by more than 10 times. 183. the representative of the sea, Lake or reservoir air station, take note: the orientation of the coast against 183.1. orientation and prevailing wind direction; 183.2. izrobotīb the shoreline; 183.3. coastal hydrographic characteristics; 183.4. proper buildings. 184. Temporary observation points (items) in the choice of the site depending on the surface of the ūdensobjekt examined the circuit length, formation in the hydrological regime and climatic features, as well as the projected arrangement of structures. 185. The observation duration temporary observation points depend on the time required to obtain a correlative relationship between the characteristics of one of the observations made during the temporary observation point (item) and the representative on the air. The required duration of observation, depending on the observed characteristics type, defined in table 5. table 5 no PO box Air mode or process characteristics of the smallest observation duration 1. Inland waters, marine and threw the oroloģisk elements of the regime one year, in which all the major hydrological nov mode phase or climatic season (meteorological elements) 2. seasonal and extreme hydrological and meteorological elements and phenomena (such as maximum and minimum water level and flow rate, air temperature, precipitation, thermal and ice regime) phase in the hydrological regime or climatic season where the relevant element or phenomenon is observed 3. Bearings, water move to the coast going coastal processes and dynamics of at least one year during the ice-free period For criteria air-186. estimates for the size of the detection of the relevant annual exceedance probability (collateral), but processes the process projected development-up estimates for the end of the period. Hidrometeoroloģisko estimates the size of the annual exceedance probability and (security) value determines the structure of regulatory design et seq or applicable standards. 187. Ūdensobjekt the hydrological regime and climatic observations and air process research structures are required during operation, if it finds: 187.1. significant differences between construction and used in the actual estimates of magnitude or climatic conditions; 187.2. air element or phenomenon of adverse effects on the shipbuilding sector; the construction does not forecast 187.3. effects of surface ūdensobjekt or next to the technical condition of the territory. " 8. Deletion of annex 2.
Prime Minister i. Emsis economic Minister j. lujans