60513 /60460. Elevation. 23-123 m (75-404 ft) 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km 2 (0.386 sq mi or 247 acres) and river estuaries. Précy-sur-Oise ( French pronunciation: [pʁesi syʁ waz], literally Précy on Oise) is a commune in the Oise department in northern France . 60587 /60700. Elevation. 31-53 m (102-174 ft) (avg. 40 m or 130 ft) 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km 2 (0.386 sq mi or 247 acres) and river estuaries. Saint-Martin-Longueau ( French pronunciation: [sɛ̃ maʁtɛ̃ lɔ̃ɡo]) is a commune in the Oise department in northern France .