Table 4. Surface drainage area and average flow of 7 major streams on Long Island (1940-65).
| Name of Stream | Surface Drainage Area (sq mi) |
Average Flow (cfs) |
| Nissequoque River | 27 |
42.2 |
| Connetquot River | 24 |
39.4 |
| Peconic River | 75 |
35.5 |
| Carlls River | 35 |
27.7 |
| Carmans River | 71 |
24.2 |
| Patchogue River | 14 |
21.2 |
| East Meadow Brook | 31 |
17.5 |
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