Sampling points

Element

Analysis date

Well P4

Nitrate

March

Well P1

Nitrate

March

Well P1

Potassium

August and September

Well P9

Potassium

All the year except May and July

Well P1

Ammonium

April, June, August, September and October

Well P9

Ammonium

March, June, July, August, September and October

Well P4

Ammonium

June, October and November

Well P1

Phosphorus

All the year

Well P9

Phosphorus

All the year except February and April

Well P4

Phosphorus

March, July, August and October

Borehole F1

Phosphorus

March and October

Well P9

Iron

June