oecd/eurostat jq inland waters

04/12/04 Environmental Protection Agency/Lithuania

OECD/Eurostat JQOECD/Eurostat JQ

Inland Waters Inland Waters

Country presentation

Lithuania

Violeta Juozefaite


TABLE 4:TABLE 4:

National population connected to waste National population connected to waste

water treatment plantswater treatment plants


Table 4: data supplied before projectTable 4: data supplied before projectNational resident population 1000’s YES

% of national resident population connected to:

Urban waste water treatment (44), of which (a):

% of pop. NO

- Primary treatment (47) % of pop. NO

- Secondary treatment (48) % of pop. NO

- Tertiary treatment (49) % of pop. NO

Other waste water treatment (b) (45) % of pop. NO

Urban waste water collecting system with treatment (c) % of pop. NO

Urban waste water collecting system without treatment % of pop. NO

Total urban waste water collecting system (41) % of pop. NO

Independent waste water collecting system % of pop. NO

of which with independent treatment (46), total % of pop. NO

of which at least secondary treatment % of pop. NO


Data sourcesData sources

Data used from:

• The Total Population Census, 2001 (SD)

• Waste water database (EPA)

Data wasn’t included from:

• Regional Environmental Protection Departments

• Municipalities


The Total Population Census’2001The 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


Population density in LithuaniaPopulation density in Lithuania


Waste water databaseWaste water database

• Database includes data on about 1069 WWTPs

• From DB 327 WWTPs were selected which:

a. corresponds to JQ UWWTP and other WWTP, i.e.

IWWTP definitions and

b. have data on influent and effluent about: TSS, BOD

(at least) + COD, N , P.

• No data about independent WWTP is supplied to DB.


Settlements connected to WWCSSettlements connected to WWCS


Population excluded from WWT analysisPopulation 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.)


Identification of WWT categoryIdentification 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:

i. was applied principle “and” for treatment efficiency for all

indicated parameters

ii. treatment efficiency of Coliforms has not been taken into

account


Table 4 (interim results for 2003):Table 4 (interim results for 2003):

National resident population 1000’s 3445.7

% of national resident population connected to:

Urban waste water treatment (44), of which (a):

1 % of pop. 59.0

- Primary treatment (47) % of pop. 31.5

- Secondary treatment (48) % of pop. 7.5

- Tertiary treatment (49) % of pop. 20.0

Other waste water treatment (b) (45) 2 % of pop. 2.7

Urban waste water collecting system with treatment (c) 1+2 % of pop. 61.7

Urban waste water collecting system without treatment 3 % of pop. 10.7

Total urban waste water collecting system (41) 1+2+3 % of pop. 72.4

Independent waste water collecting system: % of pop. NO

of which with independent treatment (46), total % of pop. NO

of which at least secondary treatment % of pop. NO


Waste water treatment in LithuaniaWaste water treatment in Lithuania


Problems (1)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.


Problems (2)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.


ConclusionsConclusions

• 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.


TABLE 6:TABLE 6:

Sewage sludge production and disposalSewage sludge production and disposal


Task: Collection of information on sewage Task: Collection of information on sewage

sludge production and disposalsludge 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


ProblemsProblems

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 Outcome - there is no possibilities to fill Table 6 of JQ

for 2003for 2003


SolutionsSolutions

• 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


The Waste Treatment RulesThe 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 We shall include sewer sludge reporting in dry solids

and cubic metersand cubic meters


The Rules on Sewage Sludge UseThe 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

oecd/eurostat jq inland waters

Documents