Water removal and wastewater quality

The Company monitors wastewater quality on an ongoing basis, paying special attention to biological, chemical and physical properties of water. Improving the quality of wastewater is one of the objectives of the Environmental Safety Program. Compliance with established standards is monitored by LUKOIL laboratories as part of in-production environmental controls, as well as by independent certified organizations.

Wastewater generated from the production process is transferred to treatment facilities, which use mechanical, biological and physical-chemical treatment methods. Measures are taken to identify and prevent any potential negative impact associated with wastewater disposal.

The main activities aimed at improving wastewater quality at oil and gas production entities in 2019 included building wastewater treatment facilities for the Yareganeft oil and mines division of LUKOIL-Komi (the facility is scheduled to be commissioned in 2020) and refurbishment of treatment facilities at the Ukhta Refinery. An upgrade of biological treatment facilities at the Saratovorgsintez plant is currently underway.

Oil refiningExcept for LLC LUKOIL-Ukhtaneftepererabotka. and petrochemical entities in Russia do not discharge polluted wastewater into surface water bodies.

In 2019, the share of polluted wastewater in the total water discharge into surface water bodies by Russian entities rose to 5% due to a change in the permitted discharge rates for the biological treatment facilities at the Ukhta Refinery (Komi Republic).

At the Ukhta Refinery, after going through the biological treatment facilities, wastewater is discharged into a surface water body (the Ukhta River). In addition to wastewater from production processes, the plant receives and disposes of wastewater from a municipal organization Municipal Unitary Entity (MUE) Ukhtavodokanal that supplies water to Ukhta residents. The volume of utility wastewater accounts for 83.5% of the total plant’s wastewater.

The treatment facilities were built in 1967; the third phase of the project was begun in the early 1990s and was supposed to improve the treatment of wastewater. However, due to a dramatic change in the country’s economic situation, the project was not implemented in full. More stringent requirements of Russian environmental legislation have resulted in the existing biological treatment facilities no longer being able to provide the necessary quality of wastewater (in line with the level of maximum permissible concentrations of harmful substances in fishery water bodies).

The Company acknowledges the importance of treatment facilities not only for the refinery, but also for the city, and is implementing an environmental project to improve the quality of wastewater. A reconstruction plan has been drafted and the four stages of the project to upgrade the plant’s biological treatment facilities were already completed in 2017-2019. The full upgrade of the facilities is scheduled to be finished in 2023. By then, established standards for wastewater quality will have been achieved.

Water discharges by LUKOIL Group entities, million cubic meters
2017 2018 2019
Total water discharged across LUKOIL Group
Within the boundaries for 2018 352.5 357.6
Within the boundaries for 2019, including: 568.0
Russian entities 236.4 337.6 344.3
Foreign entities (without ISAB and oil product supply entities) 14.9 13.3
  • ISAB
NA 210.3
  • Oil product supply entities
NA 0.1
Water discharge by destination
1. water discharge into surface water bodies for LUKOIL Group (without water discharges into the sea)
Within the boundaries for 2018 218.1 216.5
Within the boundaries for 2019, including: 216.6
Russian entities NA 203.4 203.4
Foreign entities (without ISAB and oil product supply entities) 14.7 13.1
  • ISAB
NA 0.0
  • Oil product supply entities
NA 0.1
2. water discharge into the sea
Within the boundaries for 2018 11.3 10.9
Within the boundaries for 2019, including: 221.2
Russian entities NA 11.3 10.9
Foreign entities (without ISAB and oil product supply entities) 0.0 0.0
  • ISAB
NA 210.3
  • Oil product supply entities
NA 0.0
3. water discharge into underground formations
Within the boundaries for 2018 104.2 106.7
Within the boundaries for 2019, including: 106.7
Russian entities NA 104.0 106.5
Foreign entities (without ISAB and oil product supply entities) 0.2 0.2
  • ISAB
NA 0.0
  • Oil product supply entities
NA 0.0
4. water transferred after use to a third party (excluding intra-group exchange)
Within the boundaries for 2018 18.4 23.4
Within the boundaries for 2019, including: 23.4
Russian entities NA 18.4 23.4
Foreign entities (without ISAB and oil product supply entities) 0.0 0.0
  • ISAB
NA 0.0
  • Oil product supply entities
NA 0.0
5. other water discharge
LUKOIL Group, including: 0.5 0.1
Russian entities NA 0.5 0.1
Foreign entities (without ISAB and oil product supply entities) 0.0 0.0
  • ISAB
NA 0.0
  • Oil product supply entities
NA 0.0

Note. (1) Data on LUKOIL Group are published in the Report starting from calendar year 2018 (reporting year). (2) In 2018, the methodology for accounting for water use in Russian entities was improved by eliminating duplicate accounting for water used in intra-group transfers (between LUKOIL Group organisations). (3) The volumes of water discharge into underground formations include formation water supplied for injection into absorbing formations. (4) In order to optimize the presentation of data, taking into account the expansion of the reporting limits in 2019, the format of the presentation of information on water disposal for the receiving facility was specified in comparison with the format of the Report for 2018: water disposal to surface water bodies (214.7 million cubic meters) by Russian entities and 14.7 million cubic meters by foreign organizations) is presented by category of recipient. (5) The content of hazardous chemicals (hazard class II - mainly lead) in the total volume of wastewater discharged into water bodies was only 8 kg.

Water discharges into surface water bodies by wastewater quality across LUKOIL Group, million cubic meters
2017 2018 2019
Total water discharged into surface water bodies for LUKOIL Group, including: 437.8
by Russian entities 236.4 214.7 214.3
by foreign entities (without ISAB and oil product supply entities) NA NA 13.1
  • ISAB
NA NA 210.3
  • Oil product supply entities
NA NA 0.1
Water discharge into surface water bodies by wastewater quality, including:
clean standard-quality wastewater for LUKOIL Group 405.6
by Russian entities 206.2 186.3 186.8
by foreign entities (without ISAB and oil product supply entities) NA NA 8.9
  • ISAB
NA NA 209.9
  • Oil product supply entities
NA NA 0.0
wastewater treated to standard quality for LUKOIL Group 20.6
by Russian entities 29.1 27.5 16.8
by foreign entities (without ISAB and oil product supply entities) NA NA 3.3
  • ISAB
NA NA 0.4
  • Oil product supply entities
NA NA 0.1
polluted wastewater for LUKOIL Group 11.6
by Russian entities 1.1 0.9 10.7
by foreign entities (without ISAB and oil product supply entities) NA NA 0.9
  • ISAB
NA NA 0.0
  • Oil product supply entities
NA NA 0.0

Note. Polluted water is insufficiently treated water and wastewater that is not treated.

Specific discharges of insufficiently treated wastewater into surface water bodies by Russian entities of LUKOIL Group
2017 2018 2019
Oil and gas extraction, cubic meters/tonne of oil equivalent in hydrocarbon resources 0.008 0.004 0.004
Oil refining, cubic meters/tonne of refined oil 0.000 0.000 0.037
Oil product supply, cubic meters/tonne of oil products sold 0.004 0.003 0.002
Transportation, cubic meters/tonne of oil, oil products transported 0.008 0.009 0.008

Notes. (1) No insufficiently treated water is discharged into water bodies by petrochemical and power generating entities. (2) Specific discharges of insufficiently treated wastewater by oil refining entities are calculated based on the volume of production wastewater from LUKOILUkhtaneftepererabotka, excluding any utility wastewater received from MUE Ukhtavodokanal.