The building sits atop a concrete structure constructed of 30cm diameter concrete piles and support members. This structure is independent of the fishing pier. Well is located 1.5ft south of the south wall of the SIHN gauge house. GOES antenna is mounted on the roof of one storey section. Benchmark bolt inside tide gauge hut adjacent to stilling well.
Acoustic gauge is referred to the same benchmark as the float gauge.
Aquatrack Levelling Point designated as 10.000m above an arbitrary zero. NOAA Gage 0 designated exactly two metres below chart zero. Chart zero refers to MLLW as on the Plano de Reduccion de la Carta Argentina. Information on Geo. Its benchmarks are mentioned above.