It should be arrived at vs It should be arrived on

Some examples from the web:

• The overall priority grading of each product group should be arrived at by discussions and consensus within the EUEB.
• It is my hope and desire that, if this route is embarked upon, a solution acceptable to everyone will be arrived at.
• It was clear to your rapporteur and to the Commission that the detailed operational rules to be contained in subpart Q of the proposal could only be arrived at by agreement between the parties.
• During the consultations, no mutually agreed solution could be arrived at.
• During the consultations, no mutually agreed solution could be arrived at.
• In terms of the legal basis for this agreement, the Commission has conducted an analysis of the issue and has arrived at the conclusion, supported by the Council and Member States, that it should maintain its original proposal.
• However, agreement on common indicators is quite a difficult issue and could not be arrived at in time for this report.
• I cannot judge in advance the result to be arrived at by the Council.
• During the consultations, no mutually agreed solution could be arrived at.
• I hope that at the end of the long process opened with our vote today, new standards will be arrived at which are severe but realistic.
• In it, he says that perfection can only be arrived at through what is conventionally thought of as sin, is that right?
• I would also ask the Commissioner to think again about the whole situation as far as the Organization of African Unity is concerned and its desire to intervene directly in the situation there, to bring about peace and stability insofar as that can be arrived at.
• That depends on how it's arrived at.
• When I arrived at the address, It was something different entirely.
• NASA arrived at that figure because it was a manned flight.
• It arrived at the new house yesterday.
• It is important to implement the conclusions arrived at in Barcelona swiftly.
• Ladies and gentlemen, we hear it day after day and I believe it should be reinforced that the Union has arrived at the end of an era and the beginning of a new one.
• Mrs Schreyer, I believe that the timeframe is indeed sufficient - if the time taken up by the summer recess is included - for constructive solutions to be arrived at in due time.
• The Commission expressed doubts regarding the sale and how the sales price would be arrived at.

Some examples from the web:

• The overall priority grading of each product group should be arrived at by discussions and consensus within the EUEB.
• Yet it was you who arrived on our shores.
• It probably looked like this, when he first arrived on Earth.
• It was the first time the Mayflower arrived on these shores.
• It's an eight-foot creature of some kind, with acid for blood, and it arrived on your spaceship.
• It is my hope and desire that, if this route is embarked upon, a solution acceptable to everyone will be arrived at.
• It reminds her of a simpler time when people arrived on time for dinner and left before bailing the help.
• At trial, the US Marshal supervising the transport said it arrived on schedule.
• Nick was gone when he arrived on the scene, and I told him it's on me.
• Spring has arrived on its white horse.
• For most people, however, it arrived on 1 January 2002, when the banknotes and coins were introduced.
• It fills me with dismay to note that, after Tibet and Kosovo, we have now arrived on European Union soil.
• When i arrived this morning, everything was as it should be.
• How long has it been since I arrived on this planet called Earth?
• It could be argued that she did that once the other cops arrived on the scene.
• Federal investigators arrived on the scene when it was discovered the illegal substance was inside the wine the couple had been drinking.
• I know it has still not arrived, and the Secretary General of this Parliament told me it should have been here by 19 November.
• But it should be noted that when Mr Betts arrived here last night he was sans head.
• The train left at ten, so it should have arrived in Osaka by now.
• Unfortunately, volunteer crusaders arrived only from Hungary and our East European region, although solidarity should have been reciprocal then, just like it should be today.