A method and apparatus for tidal seepage meters. The meter includes a
power supply, controller, motor, selector valve, seepage chamber and at
least two sample containers. The controller is operatively coupled to the
power supply and is capable of controlling the power supply in accordance
with a sampling schedule. The motor is operatively coupled to the power
supply and is capable of receiving power from the power supply in
accordance with the sampling schedule. The selector valve includes an
input port and at least two outlet ports and is operatively coupled to
the motor. The selector valve is capable of selecting an output valve in
accordance with the sampling schedule. The seepage chamber is operatively
coupled to the selector valve, capable of receiving seepage and inputting
seepage to the selector valve via the input port. The sample containers
are operatively coupled to the selector valve and receive seepage.