Drain holes in the sills

Just returned from the Inverness region. Most enjoyable but the we found many of the roads in poor condition. I spent the week trying to avoid pot holes.
Anyway returned home emptied the van and noticed a drip coming from the front of the sill on the drivers side that I have never seen before. Checked all the pipe work and everything seemed OK. I got underneath and checked all the drain holes I was aware of and then found one hole in the sill in line with the front jacking point that I have never noticed before. A quick poke and water flowed out. Thankfully the water was all clear. Checked the passenger side and all was clear. However it might be worth look I will certainly keep my eye on it in the future.
Happy days.