| A Community Sanitation | 17 Flagg Rd. | Westford | MA | 01886 | 978 692-0021 |
| Action King Enterprises | 26 Livingston St. | Lowell | MA | 01852 | 978 452-7750 |
| Baker's Commodities, Inc | P.O. Box 132 | N. Billerica | MA | 01862 | 978 454-8811 x 215 |
| Dave's Septic Service | P.O. Box 5193 | Manchester | NH | 03108 | 603 668-3402 |
| Ernie's Septic Service | 233 Pleasant St. | Dunstable | MA | 01827 | 978 649-7837 |
| Felix Septic Service, Inc. | 40 Winter Street | Manchester | NH | 03102 | 603 623-7907 |
| Greenwood Sewer Service | 3 Greenwood Ave. | Westford | MA | 01886 | 978 692-8930 |
| J.P. & Sons | 206 Frost Rd | Tyngsboro | MA | 01879 | 978 649-4442 |
| Lacombe Septic (R.J.) | 20 Orr Rd. | Groton | MA | 01450 | 978 692-3085 |
| Service Pumping & Drain | 5 Halberg Park | N. Reading | MA | 01864 | 978 276-0217 |
| Sewer Man/Rooter Man | P.O. Box 293 | Billerica | MA | 01821 | 978 667-1144 |
| Soucy's Sewer Service | 78 North Broadway | Salem | NH | 03079 | 603 898-9339 |
| Stewarts Septic Services/Andover | 58 So. Kimball Street | Bradford | MA | 01835 | 978 372-7471 |
| Tewksbury Septic Service | 95 Helvetia St. | Tewksbury | MA | 01876 | 978 851-9084 |
| Wayne's Drain | P.O. Box 298 | Wilmington | MA | 18870 | 978 988-0777 |
| Wind River Environmental | 577 Main St. | Hudson | MA | 01749 | 978 841-5198 x132 |
| Northboro Septic (Curtis Septic) | 124 Main Street
| Northboro
| MA | 01532 | 508 393-7234 |
Borough Sewer Service
| P.O. Box 111 | Tyngsborough | MA | 01879 | 978 649-6297 |
