| 09/16/1999 | pool 7 m diam, circular, vents in S across to N (sample area), clear green water byvent, pool bottom with many vents, beige, runoff to E, sintered edges, lots of runoff,veg after sinter, at base of 2 hills, trees faaling into pool on all sides | 6.83 | 83.6 | 87 | 1400 |