Table schema:
CREATE TABLE table_name_75 (longitude INTEGER, water__sqmi_ VARCHAR, ansi_code VARCHAR)

Question: what is the longitude when the water (sqmi) is 0.317 and the ansi code is higher than 1759695?
SQL: SELECT AVG(longitude) FROM table_name_75 WHERE water__sqmi_ = 0.317 AND ansi_code > 1759695