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Summary chapter

Summary chapter for national stats

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2018

Latvia has 99.1% of its generated load compliant to the Urban Waste Water Treatment Directive (91/271/EEC).

In 2018, Latvia counted 57 agglomerations generating ≥2,000 p.e. each, of which:

  • 56 agglomerations, generating 1,460,516 p.e. of waste water, complied with the requirements of the Directive; and
  • 1 agglomeration, generating 13,832 p.e. of waste water, did not comply with the requirements of the Directive.

The waste water load generated in Latvia in 2018 was reported to be 1,474,348 p.e.

In 2018, Latvia had not yet reached the target for treating waste water to fully comply with the Directive.

  • All the waste water load is connected to collecting system or to Individual and Appropriate Systems; and
  • All of the collected waste water load underwent secondary treatment in line with the requirements of the Directive,
  • 1.1% of the collected waste water load from agglomerations generating >10,000 p.e. and discharging into sensitive areas must still undergo more stringent treatment in line with the requirements of the Directive (approximately 13,800 p.e.).

4.2% of waste water load is addressed by means of individual or other appropriate systems (IAS) i.e. non-centralised sanitation systems (approximately 62,400 p.e.).

For the 57 agglomerations, there are 53 urban waste water treatment plants, with a total design capacity of 2,102,000 p.e., of which:

  • There is no plant active but not connected to collecting system,
  • 36 plants equipped with technology only for primary and secondary treatment,
  • 17 plants equipped with technology for more stringent treatment than secondary.

Based on the 2018 data, it seems that the load generated is lower than the design capacity.

Compliance rate by Article

Agglomeration Waste water load
Latvia in 2018 Total
[No]
Comply
[No]
Comply
[%]
Total
[p.e.]
Comply
[p.e.]
Comply
[%]
Article 3 (collection) 57 57 100 % 1,474,348 1,474,348 100 %
Article 4 (secondary treatment) 57* 57 100 % 1,411,973** 1,411,973 100 %
Article 5 (more stringent treatment) 20* 19 95 % 1,251,402** 1,237,570 98.9 %

Notice : This table contains only agglomerations with expired deadlines.

*The total [No of agglomerations] includes only those agglomerations that must provide secondary treatment / or more stringent treatment than secondary before discharging waste water from their treatment plants.

**The total [p.e. waste water load] is the sum of the load of all of the agglomerations that must provide secondary treatment or more stringent treatment than secondary before discharging waste water from their treatment plants.

Data source for table: Register, summary of MS data

37 agglomerations were not taken into account in the calculation of the compliance rate for Article 5 because these agglomerations generate ≤10,000 p.e. each.

Distance to target

Waste water load
Latvia in 2018 Target
[p.e.]
Distance to target
[p.e.]
Distance to target
[%]
Collection 1,474,348 0 0 %
Secondary treatment* 1,411,973 0 0 %
More stringent treatment** 1,251,402 13,832 1.1 %

*The target [p.e.] for secondary treatment represents the waste water load (collected and not collected) from all agglomerations that must be subject to secondary treatment, regardless of whether or not the agglomeration complies with Article 3.

** The target for more stringent treatment represents the waste water load (collected and not collected) from all agglomerations generating >10,000 p.e. and discharging into sensitive areas (regardless of whether or not the agglomeration complies with Article 3).

Data source for table: Register, summary of MS data

The expected annual investment costs per capita for installing and renewing waste water collecting systems and treatment plants is 11 EUR/inhabitant/year.

The investment needs for ensuring adequate urban waste water collection and treatment, i.e. compliance with the Directive, as estimated by the national authorities and included in their national plan, are at the level of EUR 181.52 million for the period 2020-2023. This covers works on treatment plants, with the forecasted investment cost of EUR 1.5 million (2020-2021) , and works on collecting systems and/or IAS, with a forecasted investment cost of EUR 180.02 million (2020-2023).However, as indicated in a recent OECD study, Latvia would need to increase their investments further to reach and maintain compliance. The OECD projected that the financing needs by 2030 (total cumulative additional expenditures for sanitation) is EUR 0.3 billion.

For the reference year 2018, Latvia reported the production of 24,128 tonnes of sludge. The sludge is mainly re-used for soil and agriculture (52 %) and others (26 %) or disposed for others (22 %).Disposal other - temporal storage

No information was reported on waste water reuse, storm water overflows by Latvia.