Initial Reports Volume 185 Chapter 3, Table T20. WSTP depths, temperatures, and chemistry. Notes: WSTP = water sampling temperature pressure tool. * = see "Water Sampling," p. 51. - = no water sample collected. WSTP 1 WSTP 2 Depth (mbsf) 490 540 Temperature (degree C) 15.5 22.3 Volume gas (mL) - 100 Volume water (mL) - 310 Chlorinity (mM) - 527 Salinity - 33 pH - 8.38 Alkalinity (mM) - 2.983 SO42- (mM) - 27.1 Ca (mM) - 9.9 Mg (mM) - 51 K (mM) - 9.8 Sr (micro M) - 86 Li (micro M) - 51 Fe - Below detection* Mn - Below detection