Sorry about he delay, here are the results:
Code:
sg ca mg alk PO4
Gardiner 1.025 574 >1671 2.05 .06
David 1.025 361 1328 2.64 .07
Mstrassbur 1.026 280 1366 2.37 .07
Andy719 1.023 640 1041 2.05 .22
Betterncourt 1.023 377 933 3.05 .27