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OECD/Eurostat JQ Inland Waters

OECD/Eurostat JQ Inland Waters. Country presentation Lithuania Violeta Juozefaite. TABLE 4:. National population connected to waste water treatment plants. Table 4: data supplied before project. Data sources. Data used from: The Total Population Census, 2001 (SD)

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OECD/Eurostat JQ Inland Waters

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  1. OECD/Eurostat JQ Inland Waters Country presentation Lithuania Violeta Juozefaite

  2. TABLE 4: National population connected to waste water treatment plants

  3. Table 4: data supplied before project

  4. Data sources Data used from: • The Total Population Census, 2001 (SD) • Waste water database (EPA) Data wasn’t included from: • Regional Environmental Protection Departments • Municipalities

  5. The Total Population Census’2001 • Total population of Lithuania in 2001 – 3 487 000 • In 2003 total population decreased by ~ 41 000, i.e. less than 1% • Statistics includes data about ~1500 cities and settlements with population of > 200, this is~ 85% of tot. pop. • TPC’2001 Questionnaire includes question “Are you connected to a sewer?” • Storage tanks are included in WWCS

  6. Population density in Lithuania

  7. Waste water database • Database includes data on about 1069 WWTPs • From DB 327 WWTPs were selected which: • corresponds to JQ UWWTP and other WWTP, i.e. IWWTP definitions and • have data on influent and effluent about: TSS, BOD (at least) + COD, N , P. • No data about independent WWTP is supplied to DB.

  8. Settlements connected to WWCS

  9. Population excluded from WWT analysis • Rule: if settlement’s treatment plant could not be identified then this settlement is excluded, i.e. defined as not treated Data about population is excluded: • in settlements < 200 pop. of all pop. – 516 465 (14.8% ) • in settlements and towns which are connected to WWCS: • with < 1 000 pop. – 288 291 (8.3% of total pop.) • with 1 000 - 2 000 pop. – 36 352 (1.0% of total pop.) • with 2 000 - 10 000 pop. – 47 186 (1.4%of total pop.)

  10. Identification of WWT category • For identification of a WWT category JQ treatment plants classification was used • WWT category of a particular WWTP was identified according to requirements of UWWT Directive: • was applied principle “and” for treatment efficiency for all indicated parameters • treatment efficiency of Coliforms has not been taken into account

  11. Table 4 (interim results for 2003):

  12. Waste water treatment in Lithuania

  13. Problems (1) • TPC’2001 data does not indicate WWCS type, i.e. system of conduits, storage tanks or combined system. • There is no data about treatment on part of settlements which are connected to sewer. In case there is no data about WWTP in a settlement it’s impossible to indicate treatment category. Should this part of population be excluded from WWT, although they maybe are treated? • Proposals (draft) of the Commission:Storage tanks are no collecting systems in the terminology of the UWWT Directive.

  14. Problems (2) • There is no definition of individual treatment plant in Lithuania, so no data about independent treatment is available in Lithuania. • Incomplete data on influents. WWTPs usually supply all required data on effluents, but not so eagerly on influents.

  15. Conclusions • TPC’2001 data on population could not be used forever. So, more sophisticated methodology for assessment of population connected to WWT should be developed. • Data collecting system in waste water field should be changed to fill gaps of JQ and to fulfill reporting obligations to the Commission.

  16. TABLE 6: Sewage sludge production and disposal

  17. Task: Collection of information on sewage sludge production and disposal Activities: • Correction of existing order for collection of primary data. Done • Analysis of collected primary data. Done • Preparation of order for national statistical data collection. On the preparation

  18. Problems Collected primary data analysis has showed that: • Significant amount of WWTPs has not supplied data • Data supplied is not comprehensive • Majority of WWTPs has not provided data about sewage sludge amount in dry solids and m3 • Outcome - there is no possibilities to fill Table 6 of JQ for 2003

  19. Solutions • Data collecting problems on sewage sludge in Lithuania could be and will be solved by legal means only. • On July, 2004 will come into force package of new legal acts on statistical accounting of waste (in Lithuania sewage sludge is attributed to solid waste field): • The Permits for Activity • The Waste Treatment Rules • The Rules on Sewage Sludge Use

  20. The Waste Treatment Rules • EWC-Stat included • Waste recovery [R] and disposal [D] definitions corresponds to EU legislation and JQ • Mandatory primary data reporting for waste producers and treaters • We shall include sewer sludge reporting in dry solids and cubic meters

  21. The Rules on Sewage Sludge Use • Reporting forms on sewage sludge use will be improved to fulfil reporting obligations (93/481/EC and 94/741/EC) to the Commission

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