| Kevin Gardner | | Ashaway, RI | 508-455-7412 | IA-062404 |
| Mike Brownell | | Block Island, RI | 401-466-9675 | IA-021902 |
| Dylan Chase | Block Island Septic | Block Island, RI | | IA-042601 |
| Michael Ernst | M. Ernst Excavating Inc. | Block Island, RI | 401-742-1952 | IA-021903 |
| Kevin Hoyt | Offshore Framing & Renovation, LLC | Block Island, RI | 401-466-3188 | IA-060807 |
| Greg Phillips | A.Transue Corporation | Block Island, RI | 401-466-5907 | IA-021911 |
| Wayne Pinkham | Town of New Shoreham | Block Island, RI | 401-466-7737 | IA-031704 |
| Christian Reeves | Reevo LLC | Block Island, RI | 401-418-2661 | IA-031706 |
| Donald Thimble | Town of New Shoreham | Block Island, RI | 401-466-7737 | IA-060714 |
| Bain Transue | A. Transue Corporation | Block Island, RI | 401-466-5907 | IA-031707 |
| Chris Fonseca | CFC Corporation | Bristol, RI | 401-301-4491 | IA-021904 |
| William Clarke | The Stasiunas Companies | Charlestown, RI | 401-364-0300 | IA-060701 |
| Matt Dowling | Town of Charlestown | Charlestown, RI | 401-364-5030 | IA-060804 |
| Albert Kellers | Advanced Wastewater Technologies | Charlestown, RI | 401-742-4561 | IA-052100 |
| Richard Ringler | The Stasiunas Companies | Charlestown, RI | 401-364-0300 | IA-060711 |
| Douglas Whitman | Frost Excavation and Septic Services LLC | Charlestown, RI | 401-644-2156 | IA-062409 |
| Howard Bentley | Westerly Sanitation | Charlestown , RI | 401-207-8896 | IA-031601 |
| Alfred, Jr. Chatelle | ARC Excavation | Coventry, RI | 401-623-9370 | IA-050509 |
| David Dow | The Onsite Collaborative, Ltd | Cumberland, RI | 401-316-1496 | IA-060815 |
| Richard LaBrecque | D.A. Plante | Cumberland, RI | 401-527-9094 | IA-031702 |
| Kevin Armstrong | | Exeter, RI | 401-294-2206 | IA-050503 |
| Daniel R. Cotta | Eco Tech Supply, Inc. | Exeter, RI | 401-267-0000 | IA-031604 |
| Patrick Freeman | American Engineering, Inc. | Exeter, RI | 401-294-4090 | IA-062403 |
| Scott Grenon | Grenco Septic Services | Exeter, RI | 401-639-1310 | IA-031403 |
| David Skaggs | | Exeter, RI | 401-294-8446 | IA-031406 |
| George Barkan | Metro Plumbing Co., LLC | Foster, RI | 401-647-7569 | IA-050504 |
| Robert Schultz | Schultz Engineers | Foster, RI | 401-864-3370 | IA-050530 |
| Ken Boyer | Septi-Cate Services | Greene, RI | 401-623-1525 | IA-031602 |
| Richard Vaughn | RL Vaughn Co., LLC | Hope, RI | 401-647-5313 | IA-050540 |
| Thomas Gadoury | R.A.M. Construction | Jamestown, RI | 401-965-6434 | IA-031701 |
| Bob Van Cleef | Yankee Housewrights, Inc. | Jamestown, RI | 401-423-3800 | IA-050539 |
| Brendan Cory | BSC Environmental | Little Compton, RI | 508-985-8621 | IA-031301 |
| Kevin Wilkie | KMW Enterprises | Little Compton, RI | 401-924-4453 | IA-031307 |
| Jesse Siligato | All Outdoors Power Equipment | Narragansett, RI | 401-789-7997 | IA-062407 |
| Daniel Roberge | CMT Septic Servives | Newport, RI | 860-490-1605 | IA-062406 |
| Quinn Vinbury | Endurance Services | North Kingstown, RI | | IA-042605 |
| Dennis Wood | Dennis Wood Septic | North Scituate, RI | 401-578-3342 | IA-021913 |
| Maryellen Chaffin | Hallman Septic Service & Portable Toilets | Portsmouth, RI | 401-855-4562 | IA-062401 |
| Todd Drake | Atlantic Solutions | Portsmouth, RI | 401-293-0176 | IA-060702 |
| V. Garrett Edwards | Atlantic Solutions | Portsmouth, RI | 401-293-0176 | IA-060805 |
| Robert Johnson | Atlantic Solutions | Portsmouth, RI | 401-293-0176 | IA-060705 |
| Matthew Kent | Atlantic Solutions | Portsmouth, RI | 401-293-0176 | IA-060706 |
| Mark Kneeland | Effluential Technologies | Portsmouth, RI | 401-293-0176 | IA-031304 |
| Jesus Meabebasterrechea | Effluential Technologies | Portsmouth, RI | 401-293-0946 | IA-031404 |
| Jordon Mederios | Effluential Technologies | Portsmouth, RI | 401-293-0946 | IA-031305 |
| Igor Pereira | Effluential Technologies | Portsmouth, RI | 401-293-0946 | IA-031405 |
| Eric Raposa | PJR Construction | Portsmouth, RI | 603-591-3199 | IA-031705 |
| Manny Sebastiao | Atlantic Solutions, Ltd. | Portsmouth, RI | 401-293-0176 | IA-060812 |
| Ron Valiere | Atlantic Solutions | Portsmouth, RI | 401-293-0176 | IA-050538 |
| Galen McGovern | Town of Portsmouth | Portsmouth , RI | 401-643-0380 | IA-031607 |
| Kyle Ferreira | RIDEM-ISDS | Providence, RI | 401-222-6800 | IA-060713 |
| Deb Knauss | RIDEM ISDS | Providence, RI | 401-222-4700 | IA-050541 |
| Brian Lafaille | RIDEM OWTS | Providence, RI | 401-222-3961 | IA-021906 |
| Peter O'Rourke | RIDEM ISDS | Providence, RI | 401-222-4700 | IA-050524 |
| Armando Ricci | Ricci Drain-Laying Co., Inc. | Providence, RI | 401-421-6877 | IA-031306 |
| Philip P. Virgadamo | GZA | Providence, RI | 401-421-4140 | IA-060814 |
| James Briggs | Briggs Septic, Inc. | Saunderstown, RI | 401- 783-8104 | IA-050505 |
| David Burnham | Burnham Excavating, Inc. | Saunderstown, RI | 401-294-9259 | IA-050507 |
| Darlene Gardner | Superior Septic Service, Inc. | Saunderstown, RI | 401-789-9360 | IA-050516 |
| Paul, Jr. Mumford | Paul R. Mumford & Son, Inc. | Saunderstown, RI | 401-295-8505 | IA-050523 |
| Conny Murray | CM Landscape & Construction | Saunderstown, RI | 401-742-4551 | IA-031703 |
| Gary Ezovski | Lincoln Environmental, Inc. | Smithfield, RI | 401-232-3353 | IA-050513 |
| Dylan Lapointe | Sacco Enterprises Inc. | South Kingstown, RI | 401-363-6760 | IA-052102 |
| David Fernandes | | Tiverton, RI | 401-625-5176 | IA-050544 |
| Anthony Rego | Rego Septic Services | Tiverton, RI | 401-864-1359 | IA-060710 |
| Rick Rogers | Compton Engineering, Inc. | Tiverton, RI | 401-418-3900 | IA-031609 |
| Justin St. Laurent | JPS Septics LLC | Tiverton, RI | 401-640-5334 | IA-021912 |
| Daniel Donovan | Frisella Engineering, Inc. | Wakefield, RI | 401-783-5949 | IA-050543 |
| Joseph Frisella | Frisella Engineering, Inc. | Wakefield, RI | 401-783-5949 | IA-050514 |
| Bruce Kindseth | Frisella Engineering | Wakefield, RI | 401-369-0270 | IA-060808 |
| Richard Lucia | RI CRMC | Wakefield, RI | 401-783-3370 | IA-060708 |
| Phillip Mania | Washington County Builders | Wakefield, RI | 401-789-1211 | IA-050521 |
| Tim Stasiunas | StaCon Corporation | Wakefield, RI | 401-783-4999 | IA-050542 |
| Fank Postma | | Wakefield , RI | 443-844-0007 | IA-031608 |
| Matthew Hackman | | Warwick, RI | 401-737-9211 | IA-031605 |
| Richard Pezza | Filter Brothers Services, LLC | Warwick, RI | 401-737-7810 | IA-050545 |
| Timothy Walker | Eco-Tech Supply, Inc. | West Warwick, RI | 401-323-0032 | IA-062408 |
| Leo Boisclair | L&M Boisclair Construction | Westerly, RI | 401-596-8731 | IA-060801 |
| Gil Brennan | Cherenzia and Associates | Westerly, RI | 401-596-7747 | IA-031401 |
| Rod Dair | Earth-Filter | Westerly, RI | 401-315-0065 | IA-060803 |
| Paul D. LeBlanc, PE | LeBlanc Engineering LLC | Westerly, RI | 401-741-2856 | IA-021907 |
| Michael Turco | Town of Westerly | Westerly, RI | 401-348-2594 | IA-050537 |
| Albert Rivet | All-Clear Title 5 Services, Inc. | Acushnet, MA | 508-763-4431 | IA-050527 |
| Dennis Tetreault | All-Clear Title 5 Services, Inc. | Acushnet, MA | 508-763-4431 | IA-050535 |
| Thomas Hannan | Septic Preservation Services | Attleboro, MA | 508-222-2203 | IA-031606 |
| Robert Silva | Septic Preservation Services | Attleboro, MA | 508-222-2203 | IA-060813 |
| Dan Syriala | Brewster Health Department | Brewster, MA | | IA-042604 |
| Andrew Grover | Chatham Health Department | Chatham, MA | | IA-042602 |
| Christopher Donahue | Aquapoint 3, LLC | New Bedfrod, MA | 508-400-3733 | IA-062402 |
| Michael Hollenberger | Aquapoint 3, LLC | New Bedfrod, MA | 315-383-7647 | IA-062405 |
| Zackary Seabury | Town of Mashpee | Plymouth, MA | | IA-042603 |
| Matthew Brown | Evergreen | Plymouth , MA | 508- 958-5967 | IA-021901 |
| Steve Love | Love Sanitation | Swansea, MA | 508-679-2476 | IA-021908 |
| David Potts | Geomatrix, LLC | Killingworth, CT | 860-663-3993 | IA-050526 |
| Don Lucas | Town of Old Saybrook | Old Saybrook, CT | 860-395-3130 | IA-060810 |
| Stephen Luckett | Town of Old Saybrook WPCA | Old Saybrook, CT | 860-395-2876 | IA-060709 |
| Pavel Wilson | Town of Old Saybrook WPCA | Old Saybrook, CT | 860-395-2876 | IA-060715 |
| Robert Frost, Jr. | Septic Preservation, RI Inc. | Pawcatuck, CT | 401-525-6372 | IA-031302 |