Tatjana Valtere
Head of Department
tatjana.valtere@L4.lv
The sap of life runs from roots to the top in its victorious onflow against aridity, emptiness, and perishableness, giving energy to the hazardous substance processing and self-purification mechanism, the main task of which is to neutralize and dispose of contaminants, while absorbing the matters necessary for healthy growth. Water is the source of continuous motion.
Water supply and sewerage system projection work, consulting
Since the beginning of Firma L4 activities in the field of water supply and sewerage, over 450 various projects have been implemented by the company. Main fields of activity include development of detail designs, feasibility studies of projects, and computer modelling of water services systems, as well as consulting in the water engineering field.
We offer the following services:
- design of internal and external water supply and sewerage networks,
- preparation of feasibility studies for water services development projects,
- computer modelling of water supply and sewerage networks,
- design of wastewater treatment plants, pumping stations and other elements of sewerage system,
- design of water treatment plants, water towers and other elements of water supply system,
- design of wastewater sludge processing and disposal technologies,
- author’s supervision,
- survey and assessment, and inventory of water supply and sewerage systems,
- organising and management of works for detecting leakages from water supply networks,
- development of geographic information systems of water management systems.
- Bauska county administration
- Detail design for construction of storm water collection and discharge system in Bauska (2010.)
- Daugavpils ūdens, SIA / Ūdeka, SIA
- Preparation of feasibility studies for development of water services in populated areas with PE above 2000 (2009. - 2010.)
- Saltavots, SIA
- Designing services for the development of water services in More village, Sigulda county (2010.)
- Saltavots, SIA / Rore, SIA
- Employer's requirements, technical specifications for construction of wastewater treatment plant, capacity 100 m3/d, in Turaida (2009.)
- Employer's requirements, technical specifications for construction of wastewater treatment plant, capacity 120 m3/d, in Krimulda (2009.)
- Tukuma ūdens, SIA / Mārupes komunālie pakalpojumi, AS / Babītes siltums, SIA / Rūpe, SIA / Limbažu komunālserviss, SIA
- Updating of feasibility studies and preparation of project applications for development of water services in populated areas with PE above 2000 (2010.)
- Valka county council / Ogre county council / Kolkas ūdens, SIA / a.o.
- Preparation of feasibility studies for development of water services in Kārķi, Meņģele, Taurupe, Krape, Lobe, Kolka a.o.
- Valmieras ūdens, SIA
- Preparation of construction design and technical specifications for project “Rehabilitation and extension of water supply and sewerage networks in Valmiera, stage II” (2009. - 2010.)
- Author’s supervision for the prepared detail designs under project “Rehabilitation and extension of water supply and sewerage networks in Valmiera, stage II, lot II” (started in February 2011)
- Preparation of construction design and procurement documentation for project “Development of water services in Valmiera, stage II” (lots I, III, IV and V) (started in 2010)
- Vinda, Cēsis municipal enterprise
- Introduction of water supply and sewerage networks database and updating of water supply system model, updating of hydraulic water supply model, development of GIS and automatic connection of the data to the hydraulic model. Personnel training in use of the introduced GIS and carrying of data to the model (2009. - 2010.)
