Noen av våre vann kalkes årlig. Dette arbeidet vil pågå fra uke 27 i 4 uker fremover i denne rekkefølgen: Buskerud, Akershus og Østfold.
Arbeidet utføres med helikopter.
Dette er vannene som kalkes hos oss i år:
| Svartoren | 1,0 |
| Raudsjøen | 3,0 |
| Mosjøen | 8,0 |
| Søndre Krokvannet | 4,0 |
| Tappenbergvannet | 4,0 |
| Røyrivannat | 4,0 |
| Drettvannet | 4,0 |
| Halsjøen | 4,0 |
| Ørfiske | 4,0 |
| Ristjern | 1,0 |
| Steffenstjern | 1,0 |
| Henrikstjern | 1,0 |
| Davidalsputten | 4,0 |
| Grastjernet | 1,0 |
| Åbortjern v/Fiskelitetjern | 2,0 |
| Øyvannet | 1,0 |
| Smalvann v/Østmarkkapellet | 1,0 |
| Holmetjern | 2,0 |
| Kobberhaugtjern | 1,0 |
| Mariholtputten | 2,0 |
| Lauvtjern v/Lutvann | 1,0 |
| Puttjern, Nordre | 1,0 |
| Puttjern, Søndre | 1,0 |
| Hakklokroktjern | 2,0 |
| Sandungskroktj.S | 1,0 |
| Sandungskroktj.N | 1,0 |
| Tretjern nordre v/Sør-Elvåga | 2,0 |
| Tømmerholttjern | 1,0 |
| Griseputt | 1,0 |
| Kroktjern v/Lutvann | 1,0 |
| Lomtjern v/Lusevasan | 2,0 |
| Bleiktjern | 2,0 |
| Abbortjern v/Krokhol | 1,0 |
| Tretjern, Øvre v/Krokhol | 2,0 |
| Huketjern, V | 1,0 |
| Biritjern | 1,0 |
| Langvann v/Mysublanda | 1,0 |
| Kalvetjern, store | 1,0 |
| Branntjern, søndre | 1,0 |
| Ekornputten 465,7 moh. | 1,0 |
| Trollvann, Nordre v/Askevann | 1,0 |
| Fiskelitetjernet | 4,0 |
| Smalvatn v/Måsjøene | 4,0 |
| Trillingtjern, Ø. | 2,0 |
| Trillingtjern, V. | 1,0 |
| Merratjern | 1,0 |
| Åbortjern v/Skotta | 1,0 |
| Hundetjern v/Bjørneputten | 1,0 |
| Tvetjern, Søndre v/Spålen | 1,0 |
| Tvetjern, Nordre v/Spålen | 1,0 |
| Halstjern v/Heggelivanna | 1,0 |
| Bjørneputten v/Hundetjern | 1,0 |