| Bdg or Brdg | Bridge |
| Bk | brook |
| Bndy | boundary |
| Br | branch |
| Ck | creek |
| Conf | confluence |
| Dnst | downstream |
| Fk | fork |
| Limits | section limits - specific reaches of stream sections or limits, defined by upstream and downstream limits. |
| Lk | lake |
| Ltl | little |
| Lw | lower |
| M or Mi | mile |
| Md | mid |
| No. | section number - an internal code used to designate specific reaches of stream sections, defined with upstream and downstream limits. The upper-most stream section is designated number 1. |
| R | river |
| Rn | run |
| Rs or Res | reservoir |
| Rt | route |
| Sec., Section, Section No., Section Limits, Section Number | an internal code used to designate specific reaches of stream sections, defined with upstream and downstream limits. The upper-most stream section is designated number 1. |
| Section Limits | specific reaches of stream sections or limits, defined by upstream and downstream limits. |
| Sgl | state game lands |
| Sr | state route |
| T or Twp | township |
| T-Alk | total alkalinity - a water chemistry measure of total alkalinity in milligrams per liter. |
| Unt | unnamed tributary |
| Up | upper |
| Upst | upstream |
| X | hybrid |