| Well Name | C-503 |
| Description | 25 ft S of CR 858, 3.4 mi W of SR 29 & 4.0 mi NW of Sunniland |
| Latitude [NAD83] | 261742.09 |
| Longitude [NAD83] | 812345.08 |
| FL State Plane East [NAD83] | 526474.729 |
| FL State Plane North [NAD83] | 713121.112 |
| County | Collier |
| Land Surface Elev. [NGVD29] | 19.42 |
| Elevation Source | SURVEY |
| Elevation Error [ft] +/- | |
| Land Surface Elev. [NAVD88] | 18.1 |
| Total Depth [FT BLS] | 20.4 |
| Completion Date | 01-JAN-1972 |
| Hole Diameter | 6 |
| Well Owner | GEOLOGICAL SURVEY |
| Driller Name | |
| Drilling Method | AIR-ROTARY |
| Construction Comments | |
| Construction Date | |
| Destroy Date | |
| Drilling Comments | |
| Development Method | |
| Development Hours | |
| General Comments | Automated well construction update from USGS NWIS Database on (01-07-2003) |
