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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| ECHO Septic Svs. LLC | Chepachet, RI | — | Septage Hauler | 912 |
| Edward A McQuaide | Charlestown, RI | — | Installer | L1926 |
| Edward N Simone | Foster, RI | — | Installer | L1109 |
| Edward Phillips | Westport, MA | — | Installer | L1341 |
| Edward T Lopes Jr. | Portsmouth, RI | — | Designer (Class III) | D3134 |
| Edward T Lopes Jr. | Portsmouth, RI | — | Installer | L0927 |
| Edwin W Davis | Broad Brook, CT | — | Installer | L1932 |
| Emelio DiLibero Jr. | Woonsocket, RI | — | Installer | L0619 |
| Eric C Raposa | Portsmouth, RI | — | Installer | L1907 |
| Eric D Colburn | Foster, RI | — | Designer (Class II) | D2052 |
| Eric M DeNardo | Pawtucket Inc, RI | — | Designer (Class III) | D3156 |
| Eric M Prive | Inc. Cranston, RI | — | Designer (Class III) | D3117 |
| Ethan P DaPonte | Bristol, RI | — | Installer | L1876 |
| Eugene F Spring | Wakefield, RI | — | Designer (Class III) | D3026 |
| Eugene T Edwards Jr | Stamford, CT | — | Installer | L1514 |
| Evan L Dubuc | Attleboro, MA | — | Installer | L1888 |
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