The Initial Survey has been carried out on Ciecere and Losis rivers in order to select measurements sites in 15 October 2020.

As a result 3 places have been selected on Ciecere River for water level and water discharge measurements: upstream Ciecere HPP nearby lake Ciecere, between Ciecere and Dzirnavnieki HPPs in Saldus town and downstream Dzirnavnieki HPP. On Losis River has been selected 3 places as well: upstream Grantini HPP, between Grantini and Lejnieki HPPs and downstream Lejnieki HPP. Water level data loggers will be install in all above mentioned places.