Labels:text | map | diagram OCR: Top of the Florida Potentiometric Floridan Aquifer Surface, 1985 Elevation in Feet Elevation in Feet above Sea Level 100 0 Sea Level 50 -100 100 -500 150 -1000 Areas of historical artesian flow Depth to Base of Decline in Potentiometric Potable Water in the Surface, 1980-1985 in the Floridan Aquifer Floridan Aquifer Depth in Feet Met Decline in Feet Less than 10 500 10-20 1000 1500 Greater than 20 2000 Mo potable water