| A110*G | This airport has been surveyed by the national geodetic survey. |
| A110-1 | Migratory birds and deer on and in vicinity of airport. |
| A110-2 | Noise abatement procedures in effect, contact FBO 610-384-9000. |
| A110-4 | +164 ft water tower 1343 ft from runway 11 threshold 1842 ft R marked with strobe light daylight hours; standard obstn light night hours. |
| A110-5 | Helicopter operations in vicinity of airport south and southwest of keystone helipad. |
| A110-7 | Helicopter traffic requested to land and takeoff from runway only. |
| A110-8 | Taxiways have non-standard cntrnln markings. |
| A16 | Cell 484-880-2959 |
| A17 | For serivce after hours cnt 484-880-2959 |
| A2 | Taxiway F has barrier northeast corner. |
| A58-11 | +9 ft brush, 144 from threshold, 296 ft right. |
| A58-29 | +31' trees 173' out, 485' left. |
| A81 | Activate HIRL runway 11/29 and REIL runway 11/29 - CTAF. |