Delaware County
Historic Sites
| STREAM | GROUP | MONITOR | SITE | COUNT | START | END | MIN | MEAN | MAX | MIN | MEAN | MAX |
| NAME | NUMBER | DATE | DATE | pH | pH | pH | ALK | ALK | ALK | |||
| Chester Creek | Douman | 191 | 34 | 11/19/89 | 2/1/93 | 6.0 | 6.9 | 8.0 | 30.0 | 47.41 | 60.0 | |
| Chester Creek | Saul | 253b | 83 | 7/17/90 | 6/25/98 | 5.9 | 6.9 | 8.0 | 13.0 | 43.91 | 76.0 | |
| Darby Creek | Perna | 141 | 17 | 3/3/88 | 4/13/90 | 6.0 | 7.1 | 8.0 | 40.0 | 53.82 | 80.0 | |
| Ithan creek | Van Rossum | 320a | 121 | 2/24/91 | 7/31/94 | 6.0 | 6.9 | 8.0 | 30.0 | 82.82 | 132.0 | |
| Ithan Creek | Van Rossum | 320b | 121 | 2/24/91 | 7/31/94 | 6.0 | 6.8 | 8.0 | 16.0 | 81.35 | 132.0 | |
| Ithan Run | Townsend | 132a | 22 | 12/17/88 | 8/16/89 | 6.0 | 6.9 | 7.0 | 35.0 | 53.86 | 70.0 | |
| Little Darby Cre | Townsend | 132b | 22 | 12/17/88 | 8/16/89 | 6.0 | 6.8 | 7.0 | 30.0 | 47.86 | 60.0 | |
| Muckinipattis Cr | Riggs | 346 | 21 | 1/28/92 | 1/13/93 | 6.0 | 6.0 | 6.0 | 20.0 | 46.19 | 65.0 | |
| Pumphouse Run | Saul | 253d | 8 | 11/27/91 | 8/31/92 | 7.0 | 7.3 | 8.0 | 8.0 | 13.00 | 16.0 | |
| Ridley Creek | Saul | 253a | 100 | 2/22/90 | 6/25/98 | 6.0 | 6.8 | 8.0 | 13.0 | 38.39 | 64.0 | |
| Shepherd's Run | Saul | 253c | 4 | 9/25/90 | 1/25/91 | 7.0 | 7.0 | 7.0 | 28.0 | 29.00 | 32.0 |
Last Updated on 7/29/04
By ALLARM