Recently, New Times gave an opinion page to an opponent of the Los Osos sewer project who apparently doesn’t know the difference between our lower and upper aquifers (“Sewer costs area not confined to Los Osos,” Nov. 3).

The lower aquifer is currently the main source for drinking water reported on in the annual Water Quality Report. The upper aquifer, our only likely future source of potable water, is the one polluted by septic tanks.