Hydrological Unit: Pawcatuck River
| HUC | Name |
|---|---|
| 0110000701 | Wood River |
| 0110000702 | Upper Pawcatuck River |
| 0110000703 | Lower Pawcatuck River |
| Site number | Name | Site type |
|---|---|---|
| 01117354 | QUEEN RIVER AT STATE HIGHWAY 102 AT EXETER, RI | Stream |
| 01117900 | BRUSHY BROOK NEAR HOPE VALLEY, RI | Stream |
| 01118368 | SHUNOCK RIVER AT ROUTE 2 AT NORTH STONINGTON, CT | Stream |
| 01118500 | PAWCATUCK RIVER AT WESTERLY, RI | Stream |
| 01127798 | LONG ISLAND SOUND NR NIANTIC CT | Estuary |
| 01208862 | LONG ISLAND SOUND NEAR BRIDGEPORT, CT. | Estuary |
| 01208865 | LONG ISLAND SOUND NEAR BLACK ROCK, CT. | Estuary |
| 01209757 | SHEFFIELD ISLAND HARBOR NEAR ROWAYTON, CT. | Estuary |
| 410257073251001 | CT-NW 35 | Well |
| 410358073233301 | CT-NW 33 | Well |
| 410359073233101 | CT-NW 34 | Well |
| 412645071385701 | RI-CHW 307 | Well |
| 415221072511701 | CT-SI 16 | Well |
| 415231072505001 | CT-SI 20 | Well |
| 415240072513401 | CT-SI 88 | Well |
| 415244072513201 | CT-SI 135 | Well |
| 415304072505401 | CT-SI 87 | Well |
| 415310072511001 | CT-SI 121 | Well |
| 415329072504901 | CT-SI 220 | Well |
| 415344072502501 | CT-SI 112 | Well |
| 415356072474401 | CT-SI 32 | Well |
| 415406072491101 | CT-SI 28 | Well |
| 415416072502401 | CT-SI 227 | Well |
| 415417072480801 | CT-SI 126 | Well |
| 415431072471701 | CT-SI 34 | Well |
| 415445072474101 | CT-SI 70 | Well |
| 415446072472201 | CT-SI 136 | Well |
| 415456072510701 | CT-SI 66 | Well |