Need instantiated objects to spawn at transform NOT at origin?(Solved)

I was instantiating objects either side of my spawner on the x axis. Which worked fine, just enter how many units +/- along the X axis and they would happily appear.

Now we jump to my 2nd scene and I couldn't figure out why the spawned objects were nowhere to be seen. After some head scratching I realised they were spawning 'inside' the terrain. Eventually I've realised that in scene 1 the spawner was 0,0,0 origin and the objects spawned xxx either side.

However in scene 2 my spawner is about 80 units further along the x axis but my instantiated objects are still spawning either side of origin.

 IEnumerator SpawnWaves ()
     {
         yield return new WaitForSeconds (startWait);
         while (true)
         {
             for (int i = 0; i < hazardCount; i++)
             {
                 Vector3 spawnPosition = new Vector3 (Random.Range (-spawnValues.x, spawnValues.x), spawnValues.y, transform.position.z);
                 Quaternion spawnRotation = Quaternion.identity;
                 Instantiate (hazard, spawnPosition, spawnRotation);
                 yield return new WaitForSeconds (spawnWait);
             }
             yield return new WaitForSeconds (waveWait);
         }
     }
 

I'm not 100% sure that's what was happening but its the only thing that makes sense as to why the objects are spawning out of position. So how do I make it so still spawn withing the ranges I set as 'spawnvalues' BUT make that value based on the transforms actual position.

???