769 community and non-transient non-community water systems are listed for Maine in EPA SDWIS. 41 were sampled under UCMR 5; 10 of those had at least one PFAS result at or above the reporting level, and 5 had a highest single result at or above a 2024 EPA limit (PFOA or PFOS 4 ppt, or Hazard Index 1).
Maine map · Download: systems (CSV) · all results (CSV, gzip)
These are monitoring results collected under EPA's Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) at entry points, where treated water enters the distribution system; they are not tap-water samples. They are not compliance determinations: compliance with EPA's 2024 PFAS limits is judged on running annual averages of compliance monitoring, required from 2029, so a single UCMR 5 result at or above a limit is not a violation. “< MRL” means the compound was not quantified at EPA's minimum reporting level; it does not mean zero.
Sampled under UCMR 5 (41)
| System | PWSID | City | Population | Highest PFOA (ppt) | Highest PFOS (ppt) | Highest HI | Highest single result |
|---|---|---|---|---|---|---|---|
| Anson And Madison Water District | ME0090930 | Richmond | 5,568 | <MRL | <MRL | 0 | No PFAS detected |
| Auburn Water District | ME0090070 | Lisbon | 17,245 | <MRL | <MRL | 0 | No PFAS detected |
| Bangor Water District | ME0090110 | Bangor | 27,298 | <MRL | <MRL | 0 | No PFAS detected |
| Bath Water District | ME0090130 | Bath | 9,205 | <MRL | <MRL | 0 | No PFAS detected |
| Belfast Water District | ME0090140 | Belfast | 5,698 | <MRL | <MRL | 0 | Other PFAS detected |
| Boothbay Region Water District | ME0090200 | Boothbay | 8,448 | <MRL | <MRL | 0 | No PFAS detected |
| Brewer Water Department | ME0090220 | Brewer | 8,860 | <MRL | <MRL | 0 | No PFAS detected |
| Brunswick/Topsham Water District | ME0090260 | Topsham | 18,863 | <MRL | <MRL | 0 | No PFAS detected |
| Caribou Utilities District | ME0090320 | Caribou | 3,943 | <MRL | <MRL | 0 | No PFAS detected |
| Ellsworth Water Department | ME0090520 | Ellsworth | 3,910 | <MRL | <MRL | 0 | No PFAS detected |
| Farmington Village Corp Water Dept | ME0090540 | Farmington | 4,050 | <MRL | <MRL | 0 | No PFAS detected |
| Franklin Water Department | ME0090570 | Franklin | 420 | <MRL | <MRL | 0.33 | Hazard Index below its limit |
| Gardiner Water District | ME0090610 | Gardiner | 9,000 | <MRL | <MRL | 0.42 | Hazard Index below its limit |
| Greater Augusta Utility District | ME0090080 | Augusta | 13,750 | <MRL | <MRL | 0 | No PFAS detected |
| Hampden Water District | ME0090660 | Hampden | 4,800 | <MRL | <MRL | 0 | No PFAS detected |
| Houlton Water Company | ME0090700 | Houlton | 4,735 | <MRL | 4.8 | 0 | PFOS 1–3 × its limit |
| Kennebec Water District | ME0090750 | Waterville | 22,060 | 6.4 | <MRL | 0 | PFOA 1–3 × its limit |
| Kennebunk, Kennebunkport & Wells Wd | ME0090760 | Kennebunk | 35,663 | <MRL | <MRL | 0 | No PFAS detected |
| Kittery Water District | ME0090790 | Kittery | 14,478 | <MRL | <MRL | 0 | No PFAS detected |
| Lake Arrowhead Community Inc | ME0090811 | North Waterboro | 3,500 | <MRL | <MRL | 0 | No PFAS detected |
| Lewiston Water & Sewer Division | ME0090830 | Lewiston | 23,720 | <MRL | <MRL | 0 | No PFAS detected |
| Lisbon Water Department | ME0090870 | Lisbon | 6,643 | 4.1 | <MRL | 1.32 | Hazard Index 1–3 × its limit |
| Maine Water Company Biddeford Saco Div | ME0090170 | Poland | 42,508 | <MRL | <MRL | 0 | No PFAS detected |
| Maine Water Company Camden & Rockland | ME0090300 | Poland | 21,315 | <MRL | <MRL | 0 | No PFAS detected |
| Maine Water Company Millinocket Division | ME0090990 | Poland | 5,400 | <MRL | <MRL | 0 | No PFAS detected |
| Maine Water Company Skowhegan Division | ME0091450 | Poland | 6,105 | <MRL | <MRL | 0 | No PFAS detected |
| Msad 06 Bonny Eagle Middle School | ME0000147 | Buxton | 800 | <MRL | <MRL | 0 | Other PFAS detected |
| Old Town Water District | ME0091200 | Old Town | 7,648 | <MRL | <MRL | 0 | No PFAS detected |
| Orono-Veazie Water District | ME0091210 | Orono | 5,793 | <MRL | <MRL | 0 | No PFAS detected |
| Portland Water District-Greater | ME0091300 | Portland | 135,068 | <MRL | <MRL | 0 | No PFAS detected |
| Presque Isle Utilities District | ME0091310 | Presque Isle | 6,128 | <MRL | <MRL | 0 | No PFAS detected |
| Rumford Water District | ME0091380 | Rumford | 4,050 | <MRL | <MRL | 0 | No PFAS detected |
| Saco River Apartments | ME0092710 | Rowley | 30 | <MRL | <MRL | 0 | No PFAS detected |
| Sanford Water District | ME0091410 | Sanford | 14,328 | 6.8 | 7.1 | 0.33 | PFOS 1–3 × its limit |
| South Berwick Water District | ME0091470 | South Berwick | 3,722 | <MRL | <MRL | 0 | No PFAS detected |
| Town Of Bar Harbor- Water Division | ME0090120 | Bar Harbor | 4,443 | <MRL | <MRL | 0 | Other PFAS detected |
| Us Border Station-Long Pond Rd-Jackman | ME0092559 | Lincoln | 26 | <MRL | <MRL | 0 | No PFAS detected |
| Van Buren Water District | ME0091540 | Van Buren | 2,190 | <MRL | <MRL | 0 | No PFAS detected |
| Vinalhaven Water District | ME0091550 | Poland | 1,053 | <MRL | <MRL | 0 | No PFAS detected |
| Yarmouth Water District | ME0091670 | Yarmouth | 8,000 | 9.2 | <MRL | 0 | PFOA 1–3 × its limit |
| York Water District | ME0091680 | York | 13,675 | <MRL | <MRL | 0 | No PFAS detected |
Not tested under UCMR 5 (728)
UCMR 5 required monitoring by systems serving 3,300 or more people and by a representative sample of smaller systems. The systems below have no UCMR 5 results in EPA's data. Not tested is not the same as not detected: the absence of results says nothing about PFAS in their water.
| System | PWSID | Type | City | Population | Counties |
|---|---|---|---|---|---|
| 322 Roosevelt Trail | ME0004228 | CWS | Westbrook | 46 | Cumberland County |
| 39 Limerick Road Llc | ME0092649 | NTNCWS | Portland | 55 | York County |
| A Place For All Seasons | ME0092373 | CWS | Woodland | 90 | Aroostook County |
| Abc 123 Oakland | ME0092855 | NTNCWS | Oakland | 56 | Kennebec County |
| Acap Child & Family Center | ME0094712 | NTNCWS | Presque Isle | 200 | Aroostook County |
| Acton Elementary School | ME0000002 | NTNCWS | Acton | 275 | York County |
| Addison Point Water District | ME0090010 | CWS | Addison | 168 | Washington County |
| Alfred Water District | ME0090020 | CWS | Alfred | 783 | York County |
| Allen Water Company | ME0090030 | CWS | Columbia Falls | 50 | Washington County |
| American Concrete Ind Inc | ME0094108 | NTNCWS | Auburn | 50 | Penobscot County |
| Andover Water District | ME0090050 | CWS | Andover | 265 | Oxford County |
| Aos 77 Alexander Elementary School | ME0193835 | NTNCWS | Pembroke | 59 | Washington County |
| Aos 77 Pembroke Elementary School | ME0093820 | NTNCWS | Pembroke | 118 | Washington County |
| Aos 77 Perry Elementary School | ME0018538 | NTNCWS | Perry | 87 | Washington County |
| Aos 90 Princeton Elementary School | ME0093810 | NTNCWS | Princeton | 138 | Washington County |
| Aos 91 Mt Desert Island High School | ME0000424 | NTNCWS | Mount Desert | 615 | Hancock County |
| Aos 91 Tremont Consolidated School | ME0000635 | NTNCWS | Bass Harbor | 145 | Hancock County |
| Aos 92 Vassalboro Community School | ME0093795 | NTNCWS | Winslow | 479 | Kennebec County |
| Aos 93 Bristol Consolidated School | ME0000119 | NTNCWS | Pemaquid | 243 | Lincoln County |
| Aos 93 Jefferson Village School | ME0093800 | NTNCWS | Jefferson | 288 | Lincoln County |
| Aos 93 Nobleboro Central School | ME0000437 | NTNCWS | Nobleboro | 170 | Lincoln County |
| Aos 94 Athens Community School | ME0000015 | NTNCWS | Dexter | 116 | Penobscot County, Somerset County |
| Aos 96 Bay Ridge Elementary | ME0093794 | NTNCWS | Machias | 75 | Washington County |
| Aos 96 Elm Street School | ME0009222 | NTNCWS | East Machias | 230 | Washington County |
| Aos 96 Fort Obrien School | ME0000391 | NTNCWS | Machias | 62 | Washington County |
| Aos 96 Jonesboro Elementary School | ME0012984 | NTNCWS | Jonesboro | 57 | Washington County |
| Aos 96 Whiting Village School | ME0009226 | NTNCWS | Machias | 33 | Washington County |
| Aos 98 Edgecomb Eddy Elementary Ii | ME0025958 | NTNCWS | Boothbay Harbor | 100 | Lincoln County |
| Aos 98 Georgetown Central School | ME0093813 | NTNCWS | Boothbay Harbor | 98 | Sagadahoc County |
| Applewood | ME0092367 | CWS | Portland | 55 | York County |
| Arctaris Saddleback Ski Ops | ME0091800 | NTNCWS | Rangeley | 63 | Franklin County |
| Arrowsmith Bldg - Miles Health | ME0094156 | NTNCWS | Damariscotta | 40 | Lincoln County |
| Ashland Water & Sewer District | ME0090060 | CWS | Ashland | 713 | Aroostook County |
| Ashwood Waldorf School | ME0094551 | NTNCWS | Rockport | 72 | Knox County |
| Autumn Court Llc | ME0092429 | NTNCWS | Yarmouth | 25 | Cumberland County |
| Averills Mobile Home Park | ME0095635 | CWS | Benton | 83 | Kennebec County |
| Backyard Farms-Greenhouse #1 | ME0094858 | NTNCWS | Madison | 207 | Somerset County |
| Backyard Farms-Greenhouse #2 | ME0194858 | NTNCWS | Madison | 207 | Somerset County |
| Baileyville Utilities District | ME0090100 | CWS | Winterport | 1,688 | Washington County |
| Bay School | ME0094442 | NTNCWS | Blue Hill | 105 | Hancock County |
| Begin Trailer Park | ME0009244 | CWS | Sabattus | 170 | Androscoggin County |
| Belfast Area Childrens Center | ME0092476 | NTNCWS | Waldo | 63 | Waldo County |
| Belfast Cohousing & Ecovillage Condos | ME0092433 | CWS | Belfast | 90 | Waldo County |
| Benjamin River Apts | ME0090145 | CWS | Orono | 45 | Hancock County |
| Berwick Early Learning Center | ME0095024 | NTNCWS | Berwick | 56 | York County |
| Berwick Water Department | ME0090150 | CWS | Saco | 2,845 | York County |
| Bethel Early Learning Center | ME0092876 | NTNCWS | South Paris | 56 | Oxford County |
| Bethel Water District | ME0090160 | CWS | Richmond | 1,813 | Oxford County |
| Big Cats Catering-Tiny Tykes Daycare | ME0018680 | NTNCWS | Hancock | 383 | Hancock County |
| Bingham Water District | ME0090180 | CWS | Richmond | 1,075 | Somerset County |
| Birch Haven Trailer Park | ME0007233 | CWS | Ellsworth | 43 | Hancock County |
| Birch Tree Meadows Mhp | ME0095663 | CWS | Bar Harbor | 105 | Hancock County |
| Birchwood Trailer Park | ME0095550 | CWS | Belmont | 90 | Waldo County |
| Bizzy Beez Childcare | ME0092905 | NTNCWS | Waterboro | 59 | York County |
| Black Horse Inn | ME0094466 | CWS | Belfast | 38 | Waldo County |
| Blue Hill Co-Op-South Street | ME0092678 | NTNCWS | Blue Hill | 70 | Hancock County |
| Blue Hill Terrace | ME0092110 | CWS | Stonington | 60 | Hancock County |
| Blue Road Buddies Childcare | ME0092716 | NTNCWS | Monmouth | 58 | Kennebec County |
| Blue Rock Cooperative | ME0009171 | CWS | Woonsocket | 105 | Kennebec County |
| Blueberry Ridge Mobile Village | ME0095658 | CWS | Great Neck | 138 | York County |
| Blueprints Learning Center | ME0092493 | NTNCWS | Lebanon | 80 | York County |
| Blueprints Learning Ctr At Merchants Row | ME0092641 | NTNCWS | Lebanon | 45 | York County |
| Boudreau Trailer Park | ME0095575 | CWS | Princeton | 50 | Washington County |
| Boulier Place Apts | ME0090205 | CWS | Bangor | 60 | Penobscot County |
| Bowdoinham Water District | ME0090210 | CWS | Bowdoinham | 738 | Sagadahoc County |
| Briarwood Childrens House | ME0092389 | NTNCWS | Lyman | 150 | York County |
| Bridgton Water District | ME0090230 | CWS | Bridgton | 3,660 | Cumberland County |
| Bright Ideas Child Care Center | ME0092417 | NTNCWS | Livermore | 96 | Androscoggin County |
| Brocks Mobile Home Park | ME0095719 | CWS | Vassalboro | 30 | Kennebec County |
| Brook Hollow | ME0092365 | CWS | Portland | 35 | Cumberland County |
| Brookside Mhp | ME0005826 | CWS | Cumberland | 40 | Kennebec County |
| Brookside Mobile Home Court | ME0095595 | CWS | Naples | 58 | Lincoln County |
| Brownfield-Denmark Elementary School | ME0000195 | NTNCWS | Fryeburg | 100 | Oxford County |
| Brownville Jct Water Dept | ME0090240 | CWS | Brownville | 663 | Piscataquis County |
| Brownville Water Department | ME0090250 | CWS | Brownville | 253 | Piscataquis County |
| Buckfield Village Corporation | ME0090270 | CWS | Richmond | 425 | Oxford County |
| Burnt Mill Settlement | ME0092341 | CWS | Wells | 73 | York County |
| Buxton Municipal Complex | ME0094730 | NTNCWS | Buxton | 25 | York County |
| Calais High School | ME0009850 | NTNCWS | Calais | 390 | Washington County |
| Calais Water Dept | ME0090290 | CWS | Winterport | 2,775 | Washington County |
| Calvary Baptist Church/Academy | ME0093894 | NTNCWS | Turner | 124 | Androscoggin County |
| Camp Kieve #2 | ME0100840 | NTNCWS | Nobleboro | 30 | Lincoln County |
| Canton Point Park | ME0095630 | CWS | Hartford | 88 | Oxford County |
| Canton Water District | ME0090310 | CWS | Canton | 243 | Oxford County |
| Caribou Stream Mobile Home Pk | ME0002439 | CWS | Houlton | 95 | Aroostook County |
| Caron Engineering | ME0092660 | NTNCWS | Wells | 36 | York County |
| Carrabassett Valley Academy | ME0093847 | NTNCWS | Carrabassett Valley | 150 | Franklin County |
| Carrabassett Valley Academy Dorm | ME0094827 | NTNCWS | Carrabassett Valley | 90 | Franklin County |
| Casco Inn Residential Care | ME0092338 | CWS | Casco | 80 | Cumberland County |
| Castine Water Department | ME0090330 | CWS | Castine | 983 | Hancock County |
| Caswell Elem/Aka Dawn Barnes | ME0008583 | NTNCWS | Caswell | 44 | Aroostook County |
| Cathance Trailer Park | ME0003375 | CWS | Topsham | 135 | Sagadahoc County |
| Cedar Haven Mhc | ME0007363 | CWS | Northbrook | 395 | Penobscot County |
| Center Drive School | ME0000470 | NTNCWS | Orrington | 450 | Penobscot County |
| Center For Teaching/Learning | ME0094401 | NTNCWS | Edgecomb | 87 | Lincoln County |
| Central Maine Power - Alfred | ME0094414 | NTNCWS | Augusta | 60 | York County |
| Charter Oaks Village Cooperative | ME0001006 | CWS | Woonsocket | 105 | York County |
| Chebeague Island School | ME0000185 | NTNCWS | Yarmouth | 40 | Cumberland County |
| Cherryfield School Department | ME0000174 | NTNCWS | Cheryfield | 133 | Washington County |
| Chewonki Foundation #1 | ME0000945 | NTNCWS | Wiscasset | 78 | Lincoln County |
| Chewonki Foundation #2 | ME0200945 | NTNCWS | Wiscasset | 95 | Lincoln County |
| Childrens Village Child Care Center | ME0094723 | NTNCWS | Carmel | 55 | Penobscot County |
| Chop Point (Greenhouse) | ME0400949 | NTNCWS | Woolwich | 123 | Sagadahoc County |
| Circle Of Learning | ME0007150 | NTNCWS | Gray | 60 | Cumberland County |
| Cives Steel-New England Div | ME0094004 | NTNCWS | Augusta | 120 | Kennebec County |
| Clarks Mills Apartments | ME0092708 | CWS | Rowley | 42 | York County |
| Clc Ymca Child Care | ME0092638 | NTNCWS | Damariscotta | 62 | Lincoln County |
| Clinton Water District | ME0090350 | CWS | Pittsfield | 1,013 | Kennebec County, Somerset County |
| Coastal Christian School | ME0093881 | NTNCWS | Waldoboro | 80 | Lincoln County |
| Coastal Estates | ME0092875 | CWS | Ellsworth | 48 | Hancock County |
| Coastal Maine Botanical Gardens | ME0094811 | NTNCWS | Boothbay | 110 | Lincoln County |
| Coastal Washington Cit | ME0092756 | NTNCWS | Columbia | 99 | Washington County |
| Cocoons Day School | ME0092376 | NTNCWS | Kennebunk | 54 | York County |
| Cold Spring Water Company | ME0090360 | CWS | Lamoine | 305 | Hancock County |
| Colonial Mobile Home Park | ME0007736 | CWS | Lebanon | 270 | York County |
| Community Regional Charter School | ME0000183 | NTNCWS | Skowhegan | 200 | Somerset County |
| Connor Consolidated School | ME0000179 | NTNCWS | Augusta | 43 | Aroostook County |
| Corinna Water District | ME0092305 | CWS | Corinna | 80 | Penobscot County |
| Corinthian Manor | ME0090378 | CWS | Stetson | 60 | Penobscot County |
| Cornish Water District | ME0090380 | CWS | Cornish | 758 | York County |
| Country Acres Trailer Park | ME0006648 | CWS | Durham | 75 | Androscoggin County |
| Country Mobile Home Park | ME0007543 | CWS | Old Town | 155 | Penobscot County |
| Country View Apartments | ME0092287 | CWS | Portland | 40 | Washington County |
| Countryside Apartments | ME0092709 | CWS | Rowley | 32 | York County |
| Countryside Kids | ME0092879 | NTNCWS | Hiram | 58 | Oxford County |
| Covered Bridge Apartments | ME0094501 | CWS | Bangor | 25 | Piscataquis County |
| Cranton-Thomes Day School | ME0092500 | NTNCWS | Wells | 80 | York County |
| Crawford Commons | ME0095190 | CWS | Union | 50 | Knox County |
| Crescent Mobile Home Park | ME0007237 | CWS | Ellsworth | 55 | Hancock County |
| Crest View Manor | ME0095020 | CWS | Houlton | 38 | Aroostook County |
| Crossroads Community Mhp | ME0092654 | CWS | Arundel | 57 | York County |
| Crystal Spring Estates | ME0002893 | CWS | Dover-Foxcroft | 65 | Cumberland County |
| Csd 8 Airline Community School | ME0093802 | NTNCWS | Orrington | 39 | Hancock County |
| Cushing Community School | ME0094763 | NTNCWS | Rockland | 99 | Knox County |
| Damariscotta Montessori School | ME0092509 | NTNCWS | Nobleboro | 112 | Lincoln County |
| Danforth Plaza | ME0094952 | NTNCWS | Hermon | 47 | Penobscot County |
| Danforth Water District | ME0090420 | CWS | Danforth | 313 | Washington County |
| Dayton School Department | ME0108180 | NTNCWS | Biddeford | 142 | York County |
| Dedham Elementary School | ME0000193 | NTNCWS | Orrington | 197 | Hancock County |
| Deer Ridge Mobile Home Park | ME0001194 | CWS | Thomaston | 33 | Kennebec County |
| Deer Run Apts | ME0090425 | CWS | Orono | 60 | Hancock County, Penobscot County |
| Del-Wood Trailer Park | ME0002456 | CWS | Bangor | 90 | Aroostook County |
| Dennysville Housing | ME0090427 | CWS | Dennysville | 43 | Washington County |
| Developing Minds 2 Preschool | ME0092430 | NTNCWS | Hollis | 74 | York County |
| Dexter Utility District | ME0090440 | CWS | Dexter | 2,338 | Penobscot County |
| Dfd Russell Medical Center- Leeds | ME0093963 | NTNCWS | Leeds | 30 | Androscoggin County |
| Dingley Spring Estates | ME0090450 | CWS | Gorham | 90 | Cumberland County |
| Dipper Cove Association | ME0094694 | CWS | Orrs Island | 55 | Cumberland County |
| Dirigo Mobile Home Park | ME0095650 | CWS | Augusta | 80 | Kennebec County |
| Dixfield Water & Sewer Dept | ME0090460 | CWS | Dixfield | 1,415 | Oxford County |
| Dover Realty Ventures Mhp Llc | ME0001978 | CWS | York | 145 | Penobscot County, Waldo County |
| Dover-Foxcroft Water District | ME0090470 | CWS | Dover-Foxcroft | 2,400 | Piscataquis County |
| Down East Community Hospital | ME0094726 | NTNCWS | Machias | 205 | Washington County |
| Downeast Correctional Facility | ME0098560 | CWS | Machiasport | 63 | Washington County |
| Dresden Elem School | ME0000207 | NTNCWS | Hallowell | 91 | Lincoln County |
| Dresden Water Department | ME0092303 | CWS | Wiscasset | 43 | Lincoln County |
| Duck-A-Way On Casco Bay | ME0007001 | CWS | Portland | 65 | Cumberland County |
| Ducktrap Harbor Condominiums | ME0094847 | CWS | Camden | 83 | Waldo County |
| Eagle Lake Water & Sewer District | ME0090480 | CWS | Eagle Lake | 585 | Aroostook County |
| East Millinocket Water Works | ME0091150 | CWS | East Millinocket | 2,133 | Penobscot County |
| East Pittston Water District | ME0092255 | CWS | Pittston | 53 | Kennebec County |
| East Ridge Mobile Home Park | ME0092325 | CWS | Waldoboro | 70 | Lincoln County |
| East Vassalboro Water Company Llc | ME0090500 | CWS | Kalispell | 205 | Kennebec County |
| Easton Elementary School | ME0000212 | NTNCWS | Easton | 140 | Aroostook County |
| Easton High School | ME0093811 | NTNCWS | Easton | 118 | Aroostook County |
| Ecj/Bluetriton Brands | ME0094727 | NTNCWS | Hollis | 406 | York County |
| Edmunds Consolidated School | ME0008806 | NTNCWS | Edmunds Twp | 90 | Washington County |
| Elliott Apartments | ME0092552 | CWS | Owls Head | 55 | Knox County |
| Elwell Farms | ME0092366 | CWS | Portland | 36 | York County |
| Erskine Academy | ME0000176 | NTNCWS | China | 685 | Kennebec County |
| Erskine Academy-Business Office | ME0100176 | NTNCWS | China | 25 | Kennebec County |
| Essential Learning Solutions | ME0092585 | NTNCWS | Lewiston | 27 | Androscoggin County |
| Estes Lake Mobile Home Park | ME0002809 | CWS | Sanford | 172 | York County |
| Eustis Water Department | ME0091520 | CWS | Stratton | 475 | Franklin County, Oxford County |
| Evergreen Community Mh Park | ME0007154 | CWS | Bangor | 90 | Penobscot County |
| Evergreen Estates Of Lebanon Llc | ME0007731 | CWS | Knoxville | 50 | York County |
| Evergreen Mobile Home Park | ME0001972 | CWS | Wayland | 25 | Penobscot County |
| Exeter Water Department | ME0092292 | CWS | Exeter | 25 | Penobscot County |
| Fairground Apartments | ME0091780 | CWS | Bangor | 60 | Penobscot County |
| Fairy Forest Sanctuary | ME0092882 | NTNCWS | Saco | 25 | York County |
| Faith Bible College International | ME0093806 | CWS | Charleston | 35 | Penobscot County |
| Farmington Falls Std Water Dist | ME0090530 | CWS | Farmington Falls | 225 | Franklin County |
| Fayette Central School | ME0000242 | NTNCWS | Fayette | 85 | Kennebec County |
| Fhc Inc | ME0000104 | NTNCWS | Bowdoin | 110 | Sagadahoc County |
| Fort Fairfield Utilities District | ME0090550 | CWS | Fort Fairfield | 2,025 | Aroostook County |
| Fort Kent W & W Department | ME0090560 | CWS | Fort Kent | 1,578 | Aroostook County |
| Four Winds Homeowners Assn | ME0092371 | CWS | South Thomaston | 43 | Knox County |
| Friendly Village Of Gorham Mhp | ME0007086 | CWS | Gorham | 763 | Cumberland County, York County |
| Friendship Water Department | ME0092040 | CWS | Friendship | 85 | Knox County |
| Fryeburg Water Company | ME0090600 | CWS | Poland | 2,085 | Oxford County |
| Gaelic Square Housing | ME0090745 | CWS | Bangor | 50 | Washington County |
| George Pond Estates Llc | ME0007372 | CWS | Newport | 50 | Penobscot County |
| George Stevens Academy | ME0011183 | NTNCWS | Blue Hill | 308 | Hancock County |
| Glenburn Elem School | ME0000266 | NTNCWS | Bangor | 441 | Penobscot County |
| Golden Sun Child Care | ME0092764 | NTNCWS | Blue Hill | 33 | Hancock County |
| Good Will Home Association | ME0000225 | CWS | Hinckley | 72 | Somerset County |
| Graces Busy Bees Learning Center | ME0094872 | NTNCWS | S. China | 71 | Kennebec County |
| Grand Isle Water System | ME0092285 | CWS | Grand Isle | 278 | Aroostook County |
| Grandeur Mobile Home Estates | ME0003060 | CWS | Carmel | 100 | Penobscot County |
| Gray Water District | ME0090620 | CWS | Gray | 2,468 | Cumberland County |
| Great Salt Bay Sanitary District | ME0090410 | CWS | Damariscotta | 2,143 | Lincoln County |
| Greenledge Park Llc | ME0005825 | CWS | Pittston | 55 | Kennebec County, Lincoln County |
| Greenwood Garden Apartments | ME0092327 | CWS | Bangor | 50 | Penobscot County |
| Guilford-Sangerville Utilities District | ME0090640 | CWS | Sangerville | 1,535 | Piscataquis County |
| Hadleys Lake Apartments | ME0092296 | CWS | Rockport | 45 | Washington County |
| Hallowell Road Mobile Home Park | ME0095679 | CWS | Wiscasset | 25 | Kennebec County, Lincoln County |
| Hallowell Water District | ME0090650 | CWS | Hallowell | 2,300 | Kennebec County |
| Hammond Lumber Company | ME0094219 | NTNCWS | Belgrade | 146 | Kennebec County |
| Hancock Grammar School | ME0000288 | NTNCWS | Hancock | 219 | Hancock County |
| Hancock Lumber - Ryefield Mill | ME0094037 | NTNCWS | Casco | 45 | Cumberland County |
| Hancock Lumber-Bethel Planer Mill | ME0194369 | NTNCWS | Casco | 40 | Cumberland County, Oxford County |
| Hancock Lumber-Bethel Sawmill | ME0094369 | NTNCWS | Casco | 35 | Oxford County |
| Hancock Village Mhp | ME0002527 | CWS | Castine | 73 | Hancock County |
| Hannaford Brothers-#8226 Buxton | ME0094840 | NTNCWS | Scarborough | 25 | York County |
| Hannaford Store- Turner | ME0092402 | NTNCWS | Richmond | 88 | Androscoggin County |
| Hannaford Store-South China | ME0092393 | NTNCWS | Richmond | 32 | Kennebec County |
| Hannaford-Blue Hill | ME0092405 | NTNCWS | Scarborough | 70 | Hancock County |
| Happy Trails Mhp | ME0003377 | CWS | Sabattus | 33 | Sagadahoc County |
| Harbor View I & Ii | ME0092165 | CWS | Camden | 40 | Hancock County |
| Harmon Pines Development | ME0092364 | CWS | Portland | 50 | York County |
| Harmony Elementary School | ME0009166 | NTNCWS | Dexter | 75 | Somerset County |
| Harriman Cove Park Llc | ME0002245 | CWS | Old Town | 45 | Hancock County |
| Harrison Water District | ME0090670 | CWS | Harrison | 863 | Cumberland County |
| Havasu Pines Mhp | ME0105637 | CWS | Orono | 75 | Penobscot County |
| Havasu Pines Mhp #1 | ME0005637 | CWS | Orono | 65 | Penobscot County |
| Hebron Water Company | ME0090690 | CWS | Turner | 90 | Oxford County |
| Helen S Dunn School | ME0000278 | NTNCWS | Greenbush | 155 | Penobscot County |
| Heritage View Apts | ME0091890 | CWS | Farmingdale | 60 | Aroostook County, Kennebec County |
| Hermon High School | ME0094508 | NTNCWS | Hermon | 550 | Penobscot County |
| Hermon Mhp Llc | ME0007336 | CWS | Valley Village | 43 | Penobscot County |
| Hermon Middle School #2 | ME0093815 | NTNCWS | Hermon | 350 | Penobscot County |
| Hidden Lake Village Llc | ME0007990 | CWS | North Ogden | 133 | York County |
| Hidden Pond Llc | ME0094947 | NTNCWS | Kennebunk | 94 | York County |
| Highpine Mobile Home Court | ME0003907 | CWS | Embden | 130 | York County |
| Highpine Village | ME0092741 | CWS | Atkinson | 300 | York County |
| Highview Christian Academy | ME0094918 | NTNCWS | Charleston | 95 | Penobscot County |
| Hillhouse Inc | ME0095240 | CWS | Bath | 146 | Sagadahoc County |
| Hillview Estates | ME0003535 | CWS | Turner | 140 | Androscoggin County |
| Hingham Heights | ME0095699 | CWS | Hermon | 90 | Penobscot County |
| Hodgdon Homestead | ME0094503 | CWS | Hodgdon | 32 | Aroostook County |
| Holden Square Apartments | ME0092155 | CWS | Holden | 63 | Penobscot County |
| Hollis Town Farm Road | ME0092920 | NTNCWS | Hollis | 25 | York County |
| Home Inc & Learning Center | ME0094194 | NTNCWS | Orland | 36 | Hancock County |
| Homestead Estates Llc | ME0095640 | CWS | Hermon | 125 | Penobscot County |
| Hope Elementary School | ME0017236 | NTNCWS | Hope | 207 | Knox County |
| Howards Trailer Park | ME0003342 | CWS | Swanville | 75 | Waldo County |
| Howell Laboratories | ME0094216 | NTNCWS | Bridgton | 60 | Cumberland County |
| Howland Water Department | ME0090710 | CWS | Howland | 1,025 | Penobscot County |
| Huber Engineered Woods Llc | ME0094237 | NTNCWS | Easton | 136 | Aroostook County |
| Indian Run Estates Llc | ME0095530 | CWS | Hancock | 103 | Lincoln County |
| Indian Township Tribal Water System | ME0090719 | CWS | Indian Township | 535 | Washington County |
| Irving Forest Products - Ashland Mill | ME0093713 | NTNCWS | Ashland | 125 | Aroostook County |
| Island Falls Water Dept | ME0090720 | CWS | Island Falls | 475 | Aroostook County |
| Island Medical Center | ME0098268 | NTNCWS | Stonington | 90 | Hancock County |
| Islesboro Central School | ME0000315 | NTNCWS | Isleboro | 115 | Waldo County |
| Jackman Utility District | ME0090730 | CWS | Jackman | 1,125 | Somerset County |
| Jay Village Water District | ME0090740 | CWS | Jay | 975 | Franklin County |
| Jbca - South Bristol School | ME0093846 | NTNCWS | South Bristol | 72 | Lincoln County |
| Johnson Property Mgt Llc | ME0094669 | NTNCWS | Milton | 28 | Waldo County |
| Jordan-Small Middle School | ME0000529 | NTNCWS | Windham | 250 | Cumberland County |
| Katahdin Valley Health Center | ME0092629 | NTNCWS | Patten | 25 | Penobscot County |
| Kennebec Mobile Home Park | ME0005192 | CWS | Forest Hills | 53 | Kennebec County |
| Kents Hill School | ME0000531 | NTNCWS | Kents Hill | 338 | Kennebec County |
| Kerebear Child Care | ME0092802 | NTNCWS | Buxton | 118 | York County |
| Keywood Manor Mhp Llc | ME0009644 | CWS | Alfred | 411 | York County |
| Kidquarters Child Care Center | ME0092434 | NTNCWS | New Gloucester | 40 | Cumberland County |
| Kids & Co Childcare Center | ME0092347 | NTNCWS | Turner | 71 | Androscoggin County |
| Kids Count Learning Center | ME0092437 | NTNCWS | Naples | 55 | Cumberland County |
| Kids Next Door | ME0092906 | NTNCWS | Durham | 38 | Androscoggin County |
| Kidspeace-New England-Cafeteria | ME0094196 | NTNCWS | Ellsworth | 55 | Hancock County |
| Kidspeace-New England-Medical Dorm | ME0094410 | NTNCWS | Ellsworth | 225 | Hancock County |
| Kimmys Kids | ME0092712 | NTNCWS | Boothbay | 60 | Lincoln County |
| Kingfield Water District | ME0090780 | CWS | Kingfield | 950 | Franklin County |
| Knights Hill Association | ME0090800 | CWS | Bridgton | 718 | Cumberland County |
| Lake St George Apartments | ME0092299 | CWS | Clinton | 45 | Waldo County |
| Lakes Region Apartments | ME0019577 | CWS | Waterville | 40 | Kennebec County |
| Lee Academy #1 | ME0000338 | NTNCWS | Lee | 252 | Penobscot County |
| Lee Academy #3 | ME0400338 | NTNCWS | Lee | 300 | Penobscot County |
| Lee Academy-Cobb Center | ME0200338 | NTNCWS | Lee | 270 | Penobscot County |
| Leightons Little Bear Den | ME0092787 | NTNCWS | Columbia Falls | 25 | Washington County |
| Life Church-Sunny Days Childcare | ME0092467 | NTNCWS | Gorham | 110 | Cumberland County |
| Limerick Mobile Home Park Llc | ME0007963 | CWS | Limerick | 115 | York County |
| Limerick Water District | ME0090850 | CWS | Limerick | 625 | York County |
| Limestone Water & Sewer District | ME0090840 | CWS | Limestone | 875 | Aroostook County |
| Lincoln Water District | ME0090860 | CWS | Lincoln | 3,020 | Penobscot County |
| Little Broncos Academy | ME0000432 | NTNCWS | Newburgh | 56 | Penobscot County |
| Little Buddies Childcare Llc | ME0092502 | NTNCWS | South Berwick | 28 | York County |
| Little Farm School | ME0092766 | NTNCWS | Limerick | 40 | York County |
| Little Friends Early Learning Center | ME0092494 | NTNCWS | Freeport | 37 | Cumberland County |
| Little Learners Childcare | ME0092396 | NTNCWS | South Thomaston | 77 | Knox County |
| Little Learners Daycare & Pre-School | ME0092680 | NTNCWS | Limestone | 46 | Aroostook County |
| Little Owls Early Learning Day Care | ME0092775 | NTNCWS | Durham | 48 | Androscoggin County |
| Little Tykes Ii Child Care | ME0092571 | NTNCWS | Steep Falls | 100 | Cumberland County |
| Livermore Falls Water District | ME0090880 | CWS | Livermore Falls | 2,995 | Androscoggin County, Franklin County |
| Living Waters Christian School | ME0092457 | NTNCWS | Buxton | 135 | York County |
| Long Pond Water District | ME0090890 | CWS | Sullivan | 308 | Hancock County |
| Longfellows Greenhouse | ME0094936 | NTNCWS | Manchester | 28 | Kennebec County |
| Loring Development Authority | ME0090915 | CWS | Wiscasset | 180 | Aroostook County |
| Loring Woods Park | ME0007968 | CWS | Houlton | 55 | Aroostook County |
| Louisiana-Pacific Corp-New Limerick | ME0094006 | NTNCWS | Houlton | 150 | Aroostook County |
| Lovejoy Health Center | ME0093951 | NTNCWS | Albion | 36 | Kennebec County |
| Lubec Water District | ME0090900 | CWS | Lubec | 1,775 | Washington County |
| Lynns Way | ME0092499 | CWS | Skowhegan | 33 | Somerset County |
| Machias Trailer Park | ME0004628 | CWS | East Machias | 89 | Washington County |
| Machias Water Company | ME0090910 | CWS | Machias | 1,390 | Washington County |
| Madawaska Water District | ME0090920 | CWS | Madawaska | 2,738 | Aroostook County |
| Maine School Solutions | ME0094802 | NTNCWS | Waterville | 95 | Kennebec County |
| Maine Water Company Bucksport Division | ME0090280 | CWS | Poland | 1,700 | Hancock County |
| Maine Water Company Freeport Division | ME0090580 | CWS | Poland | 2,700 | Cumberland County |
| Maine Water Company Greenville Division | ME0090630 | CWS | Poland | 1,335 | Piscataquis County |
| Maine Water Company Hartland Division | ME0090680 | CWS | Poland | 1,043 | Somerset County |
| Maine Water Company Kezar Falls Division | ME0090770 | CWS | Poland | 1,115 | Oxford County, York County |
| Maine Water Company Oakland Division | ME0091190 | CWS | Poland | 2,873 | Kennebec County |
| Maine Water Company Union Division | ME0091537 | CWS | Poland | 238 | Knox County |
| Maine Water Company Warren Division | ME0091565 | CWS | Poland | 815 | Knox County |
| Maine Wood Turning Inc | ME0094247 | NTNCWS | New Vineyard | 47 | Franklin County |
| Maine Woods Company Llc | ME0094753 | NTNCWS | Portage Lake | 60 | Aroostook County |
| Mama Bears Daycare | ME0016914 | NTNCWS | Howland | 32 | Penobscot County |
| Maple Ridge Mobile Home Park | ME0095340 | CWS | Corinna | 50 | Penobscot County |
| Maple Tree Estates | ME0092160 | CWS | Presque Isle | 62 | Aroostook County |
| Maplestone School | ME0092824 | NTNCWS | Acton | 25 | York County |
| Maplewood Mobile Home Park | ME0014643 | CWS | Bangor | 70 | Lincoln County |
| Mars Hill And Blaine Water Company | ME0090940 | CWS | Mars Hill | 1,500 | Aroostook County |
| Marsh Brook Estates | ME0092288 | CWS | Great Neck | 70 | York County |
| Marshwood Estates | ME0006735 | CWS | Sparta | 270 | York County |
| Masters Machine Company | ME0094273 | NTNCWS | Round Pond | 88 | Lincoln County |
| Mattawamkeag Housing Corp | ME0090949 | CWS | Bangor | 33 | Penobscot County |
| Mayberry Hill Preschool | ME0092540 | NTNCWS | Casco | 28 | Cumberland County |
| Mccain Foods Usa Inc | ME0094250 | NTNCWS | Easton | 465 | Aroostook County |
| Mccain Foods, Inc - Cold Storage | ME0194250 | NTNCWS | Easton | 29 | Aroostook County |
| Mcculley Commons Apartments | ME0092175 | CWS | Presque Isle | 73 | Aroostook County |
| Mdi Bio Lab | ME0294931 | NTNCWS | Salisbury Cove | 116 | Hancock County |
| Meadowview Apartments | ME0092363 | CWS | Freeport | 40 | Sagadahoc County |
| Mechanic Falls Water Dept | ME0090960 | CWS | Mechanic Falls | 2,010 | Androscoggin County |
| Mercy-Gorham Crossing | ME0094748 | NTNCWS | Saco | 44 | Cumberland County |
| Mexico Water District | ME0090970 | CWS | Mexico | 2,425 | Oxford County |
| Midcoast Regional Redevelop Authority | ME0092747 | CWS | Brunswick | 363 | Cumberland County |
| Milbridge Water District | ME0090980 | CWS | Milbridge | 405 | Washington County |
| Mildred L Day School - Arundel | ME0000012 | NTNCWS | Kennebunk | 300 | York County |
| Milestones Preschool & Childcare | ME0092705 | NTNCWS | Casco | 129 | Cumberland County |
| Millstone Apartments | ME0092260 | CWS | Brunswick | 156 | Cumberland County, Sagadahoc County |
| Milo Water District | ME0091000 | CWS | Milo | 1,720 | Piscataquis County |
| Mmca-Salt Bay Head Start | ME0092658 | NTNCWS | Bath | 33 | Lincoln County |
| Mmet-Hanley Building | ME0094557 | NTNCWS | Manchester | 27 | Kennebec County |
| Monmouth Water Association | ME0091020 | CWS | Winthrop | 588 | Kennebec County |
| Monson Utilities District | ME0091030 | CWS | Monson | 298 | Piscataquis County, Somerset County |
| Montfort Heights | ME0091031 | CWS | Milo | 30 | Aroostook County |
| Monticello Housing Corporation | ME0091032 | CWS | Caribou | 33 | Aroostook County |
| Moodys Diner | ME0003629 | NTNCWS | Wiscasset | 44 | Lincoln County |
| Moose Alley Daycare | ME0092857 | NTNCWS | Poland | 37 | Androscoggin County |
| Moosehead Trail Village | ME0091850 | CWS | Farmingdale | 60 | Waldo County |
| Morin Brick Company | ME0094296 | NTNCWS | Auburn | 35 | Androscoggin County |
| Morin Brick-Factory | ME0194296 | NTNCWS | Auburn | 25 | Androscoggin County |
| Morrill Village Water District | ME0091040 | CWS | Morrill | 143 | Waldo County |
| Morris Yachts | ME0094867 | NTNCWS | Trenton | 45 | Hancock County |
| Moscow Water District | ME0091050 | CWS | Bingham | 313 | Somerset County |
| Mount Desert Water Dist -Seal | ME0091420 | CWS | Northeast Harbor | 865 | Hancock County |
| Mount Desert Water Dist North | ME0091140 | CWS | Northeast Harbor | 1,623 | Hancock County |
| Mountain View Correctional Facility | ME0090342 | CWS | Charleston | 468 | Penobscot County |
| Mountain View Trailer Park | ME0006954 | CWS | Fort Kent | 95 | Aroostook County |
| Mountainside Mobile Home Park | ME0002346 | CWS | Thomaston | 130 | Knox County |
| Msad 01 Mapleton Elem School | ME0000399 | NTNCWS | Presque Isle | 236 | Aroostook County |
| Msad 06 Bonny Eagle High School | ME0008778 | NTNCWS | Buxton | 1,200 | Cumberland County, York County |
| Msad 06 Buxton Center Elementary School | ME0092397 | NTNCWS | Buxton | 650 | York County |
| Msad 06 Frank Jewett School | ME0093804 | NTNCWS | Buxton | 60 | York County |
| Msad 06 Hb Emery Jr Memorial School | ME0000367 | NTNCWS | Buxton | 265 | York County |
| Msad 06 Hollis Consolidated School | ME0000304 | NTNCWS | Buxton | 350 | York County |
| Msad 09 Cape Cod Hill School | ME0093887 | NTNCWS | Farmington | 215 | Franklin County |
| Msad 11 Helen Thompson School | ME0000676 | NTNCWS | Gardiner | 331 | Kennebec County |
| Msad 17 Harrison Elementary School | ME0000293 | NTNCWS | South Paris | 100 | Cumberland County |
| Msad 17 Hebron Station School | ME0025959 | NTNCWS | South Paris | 113 | Oxford County |
| Msad 17 Otisfield Community School | ME0093972 | NTNCWS | South Paris | 95 | Oxford County |
| Msad 17 Roberts Farm | ME0092923 | NTNCWS | South Paris | 53 | Oxford County |
| Msad 30 Lee-Winn Elementary School | ME0094443 | NTNCWS | Lee | 125 | Penobscot County |
| Msad 30 Mt Jefferson Junior High | ME0092355 | NTNCWS | Lee | 97 | Penobscot County |
| Msad 31 Enfield Station Elementary | ME0094474 | NTNCWS | Howland | 266 | Penobscot County |
| Msad 33 Wisdom Jr-Sr High School | ME0000555 | NTNCWS | Frenchville | 126 | Aroostook County |
| Msad 37 Daniel W Merrit School | ME0000003 | NTNCWS | Harrington | 118 | Washington County |
| Msad 37 Harrington Elem School | ME0014156 | NTNCWS | Harrington | 151 | Washington County |
| Msad 37 Milbridge Elementary School | ME0000411 | NTNCWS | Harrington | 158 | Washington County |
| Msad 41 Brownville Elem School | ME0017874 | NTNCWS | Milo | 132 | Piscataquis County |
| Msad 41 Marion C Cook School | ME0000335 | NTNCWS | Milo | 25 | Penobscot County |
| Msad 44 Woodstock Elem School | ME0017998 | NTNCWS | Bethel | 91 | Oxford County |
| Msad 52 Alternative/Admin School | ME0094433 | NTNCWS | Turner | 40 | Androscoggin County |
| Msad 52 Greene Central School | ME0000279 | NTNCWS | Turner | 408 | Androscoggin County |
| Msad 52 Leavitt Area High School | ME0000639 | NTNCWS | Turner | 712 | Androscoggin County |
| Msad 52 Leeds Central School | ME0000340 | NTNCWS | Turner | 249 | Androscoggin County |
| Msad 52 Tripp Middle School | ME0003116 | NTNCWS | Turner | 343 | Androscoggin County |
| Msad 52 Turner Elementary School | ME0009731 | NTNCWS | Turner | 356 | Androscoggin County |
| Msad 52 Turner Primary School | ME0094059 | NTNCWS | Turner | 357 | Androscoggin County |
| Msad 54 Canaan Elementary School | ME0000156 | NTNCWS | Skowhegan | 245 | Somerset County |
| Msad 60 Hanson Elementary School | ME0013542 | NTNCWS | North Berwick | 180 | York County |
| Msad 60 Knowlton School | ME0017265 | NTNCWS | North Berwick | 270 | York County |
| Msad 60 Lebanon Elem School | ME0000337 | NTNCWS | North Berwick | 181 | York County |
| Msad 60 Noble Middle School | ME0000087 | NTNCWS | North Berwick | 500 | York County |
| Msad 61 Crooked River School | ME0016686 | NTNCWS | Bridgton | 300 | Cumberland County |
| Msad 61 Lake Region High School | ME0003837 | NTNCWS | Bridgton | 700 | Cumberland County |
| Msad 61 Lake Region High- Esb | ME0094717 | NTNCWS | Bridgton | 60 | Cumberland County |
| Msad 61 Lake Region Middle School | ME0016804 | NTNCWS | Bridgton | 400 | Cumberland County |
| Msad 61 Songo Locks Elementary School | ME0094457 | NTNCWS | Bridgton | 478 | Cumberland County |
| Msad 64 Bradford Elem School | ME0000107 | NTNCWS | Corinth | 90 | Penobscot County |
| Msad 64 Kenduskeag Elem School | ME0000322 | NTNCWS | Corinth | 150 | Penobscot County |
| Msad 64 Stetson Elem School | ME0000613 | NTNCWS | Corinth | 60 | Penobscot County |
| Msad 70 Hodgdon Elementary School | ME0000301 | NTNCWS | Hodgdon | 264 | Aroostook County |
| Msad 70 Hodgdon High School | ME0093837 | NTNCWS | Hodgdon | 187 | Aroostook County |
| Msad 72 New Suncook School | ME0000386 | NTNCWS | Fryeburg | 207 | Oxford County |
| Msad 75 Bowdoin Central School | ME0094742 | NTNCWS | Topsham | 250 | Sagadahoc County |
| Msad 75 Harpswell Island School | ME0000289 | NTNCWS | Topsham | 198 | Cumberland County |
| Msad 76 Swans Island School | ME0093118 | NTNCWS | Swans Island | 35 | Hancock County |
| Msu 103 Beals Elementary School | ME0093803 | NTNCWS | Beals | 56 | Washington County |
| Msu 103 Jonesport Elem/Jbhs | ME0013480 | NTNCWS | Jonesport | 237 | Washington County |
| Msu 122 Woodland Consolidated School | ME0000709 | NTNCWS | Woodland | 160 | Aroostook County |
| Msu 69 Appleton Village School | ME0000011 | NTNCWS | Camden | 168 | Knox County |
| Msu 69 Lincolnville Central School | ME0094573 | NTNCWS | Camden | 260 | Waldo County |
| Msu 76 Brooklin Elementary School | ME0094509 | NTNCWS | Deer Isle | 63 | Hancock County |
| Msu 76 Deer Isle-Stonington Jr/Sr Hs | ME0009262 | NTNCWS | Deer Isle | 130 | Hancock County |
| Msu 76 Deer Isle/Stonington K-8 School | ME0094707 | NTNCWS | Deer Isle | 286 | Hancock County |
| Msu 76 Sedgwick Elementary School | ME0094407 | NTNCWS | Deer Isle | 99 | Hancock County |
| Msu 93 Blue Hill Consolidated School | ME0000099 | NTNCWS | Blue Hill | 319 | Hancock County |
| Msu 93 Brooksville Elementary School | ME0000123 | NTNCWS | Blue Hill | 66 | Hancock County |
| Msu 93 Penobscot Elementary School | ME0000485 | NTNCWS | Blue Hill | 94 | Hancock County |
| Mt Abram Chalet Association | ME0091870 | CWS | Saco | 160 | Oxford County |
| Mt Abram High School | ME0000559 | NTNCWS | Phillips | 246 | Franklin County |
| Mt Blue Standard Water District | ME0091260 | CWS | Phillips | 650 | Franklin County |
| Naples Shopping Center | ME0017576 | NTNCWS | Naples | 35 | Cumberland County |
| Narraguagus Estates | ME0091055 | CWS | Bangor | 97 | Washington County |
| New Gloucester Water District | ME0092428 | CWS | New Gloucester | 145 | Cumberland County |
| New Portland Water District | ME0091090 | CWS | Kingfield | 120 | Somerset County |
| New Sharon Water District | ME0091080 | CWS | Richmond | 245 | Franklin County |
| Newport Water District | ME0091100 | CWS | Richmond | 1,900 | Penobscot County |
| Nezinscot Village | ME0004591 | CWS | Auburn | 67 | Androscoggin County |
| Ninnys House Child Care | ME0092669 | NTNCWS | Limmington | 60 | York County |
| Ninnys House Childcare-Buxton | ME0092674 | NTNCWS | Limmington | 80 | York County |
| Noahs Ark Daycare Center | ME0092715 | NTNCWS | Farmington | 114 | Franklin County |
| Norridgewock Water District | ME0091110 | CWS | Norridgewock | 1,055 | Somerset County |
| North Berwick Water District | ME0091120 | CWS | North Berwick | 2,125 | York County |
| North Haven Water Department | ME0091130 | CWS | North Haven | 740 | Knox County |
| North Jay Water District | ME0091160 | CWS | Jay | 500 | Franklin County |
| North Yarmouth Congregational Church | ME0092873 | NTNCWS | N. Yarmouth | 40 | Cumberland County |
| Northeastern Estates | ME0092293 | CWS | Standish | 40 | Cumberland County |
| Northern Light Blue Hill | ME0093954 | NTNCWS | Blue Hill | 409 | Hancock County |
| Northern Light Sebasticook Valley Hosp | ME0092821 | NTNCWS | Pittsfield | 165 | Somerset County |
| Northland Plaza | ME0017508 | NTNCWS | Turner | 100 | Androscoggin County |
| Northport Village Corp Water Dept | ME0091165 | CWS | Wiscasset | 550 | Kennebec County, Waldo County |
| Norway Water District | ME0091180 | CWS | Norway | 2,043 | Oxford County |
| Oak Hill Mobile Home Park | ME0092915 | CWS | Waterville | 33 | Kennebec County |
| Oakwood Mobile Community Association | ME0008164 | CWS | Alfred | 95 | York County |
| Oakwood Mobile Community Association-2 | ME0108164 | CWS | Alfred | 95 | York County |
| Old Marsh Condominium | ME0092323 | CWS | Kennebunk | 325 | York County |
| Oquossoc Standard Water System | ME0092361 | CWS | Oquossoc | 88 | Franklin County |
| Osgood Farms | ME0092382 | CWS | Washburn | 42 | Aroostook County |
| Ossipee Valley Christian School | ME0025566 | NTNCWS | Cornish | 75 | York County |
| Otc Next Steps | ME0092466 | NTNCWS | Presque Isle | 120 | Aroostook County |
| Otis School Dept-Beech Hill School | ME0093819 | NTNCWS | Otis | 112 | Hancock County |
| Oxford Sacc | ME0094787 | NTNCWS | Oxford | 117 | Oxford County |
| Oxford Water District | ME0091220 | CWS | Norway | 1,100 | Oxford County |
| Palmyra Community Center | ME0000477 | NTNCWS | Palmyra | 54 | Somerset County |
| Paris Utility District | ME0091230 | CWS | South Paris | 2,940 | Oxford County |
| Parker Ridge Retirement Community | ME0092265 | CWS | Blue Hill | 120 | Hancock County |
| Passamaquoddy Water District | ME0090510 | CWS | Eastport | 2,125 | Washington County |
| Patricia A Duran School | ME0000297 | NTNCWS | Hermon | 430 | Penobscot County |
| Patten Water Dept | ME0091240 | CWS | Patten | 338 | Penobscot County |
| Pemaquid Villas Mhp | ME0002093 | CWS | Woonsocket | 53 | Lincoln County |
| Penobscot Mccrum | ME0092723 | NTNCWS | Washburn | 76 | Aroostook County |
| Persistence Seniors Housing | ME0091750 | CWS | Orono | 60 | Penobscot County |
| Pheasant Hill Mhp | ME0003990 | CWS | Wells | 35 | York County |
| Pine Grove Terrace | ME0094534 | CWS | Easton | 123 | Aroostook County |
| Pine Ridge Hunton Brook Association | ME0095585 | CWS | Livermore Falls | 298 | Androscoggin County |
| Pine Ridge Village | ME0004250 | CWS | South Paris | 85 | Kennebec County |
| Pine Spring Roads & Water | ME0091360 | CWS | Shapleigh | 220 | York County |
| Pine Tree Academy | ME0094005 | NTNCWS | Freeport | 147 | Cumberland County |
| Pine Tree Mobile Estates | ME0003240 | CWS | Farmington Hills | 560 | Cumberland County |
| Pine Village Mhp | ME0006203 | CWS | Henderson | 80 | Aroostook County |
| Pineland Center Campus Msad 15 | ME0091270 | NTNCWS | New Gloucester | 1,230 | Cumberland County |
| Pines Mobile Home Park Llc | ME0006513 | CWS | Auburn | 50 | Lincoln County |
| Pinetree Village Homeowners Association | ME0092475 | CWS | Wells | 40 | York County |
| Pinewood Acres Trailer Park | ME0008855 | CWS | Sabattus | 95 | Sagadahoc County |
| Pinewood Park | ME0002782 | CWS | Great Neck | 108 | York County |
| Piper Stream Mobile Home Park | ME0095560 | CWS | Swanville | 75 | Waldo County |
| Pittsfield Water Dept | ME0091280 | CWS | Winterport | 3,228 | Somerset County |
| Pjs Child Care | ME0092448 | NTNCWS | Plymouth | 84 | Penobscot County |
| Pleasant Acres Estates | ME0005693 | CWS | Palmyra | 193 | Somerset County |
| Pleasant Ridge | ME0092727 | CWS | Caswell | 45 | Aroostook County |
| Pleasant River Lumber Enfield | ME0092808 | NTNCWS | West Enfield | 69 | Penobscot County |
| Pleasant River Lumber Enfield-Boiler | ME0292808 | NTNCWS | West Enfield | 25 | Penobscot County |
| Pleasant River Lumber Enfield-Saw Mill | ME0192808 | NTNCWS | West Enfield | 60 | Penobscot County |
| Pleasant View Manor | ME0091285 | CWS | Bangor | 50 | Washington County |
| Plymouth Water District | ME0092270 | CWS | Plymouth | 150 | Penobscot County |
| Poland Country Village Mhp Inc | ME0005844 | CWS | East Poland | 140 | Androscoggin County |
| Poland Place Condo Association | ME0092583 | CWS | Poland | 35 | Androscoggin County |
| Poland Trailer Park-Poland | ME0005847 | CWS | Auburn | 68 | Androscoggin County |
| Pond & Pond Trailer Park | ME0095510 | CWS | Naples | 63 | Cumberland County |
| Pond Acres Llc | ME0090815 | CWS | Scarborough | 65 | Kennebec County |
| Poppy Patch Learning Center | ME0092848 | NTNCWS | Oakland | 52 | Kennebec County |
| Port Clyde Water District | ME0091290 | CWS | Port Clyde | 330 | Knox County |
| Portland Water District/Steep Falls | ME0091302 | CWS | Portland | 480 | Cumberland County |
| Precious Little Ones Child Care Center | ME0092663 | NTNCWS | Augusta | 143 | Kennebec County |
| Princeton Water District | ME0092388 | CWS | Princeton | 75 | Washington County |
| Pumpkin Patch Preschool | ME0092538 | NTNCWS | Gorham | 35 | Cumberland County |
| Punkintown Place | ME0092412 | NTNCWS | South Berwick | 105 | York County |
| Quantabacook Water District | ME0091320 | CWS | Harrington | 303 | Washington County |
| Rachel Carson National Wildlife Refuge | ME0092804 | NTNCWS | Kennebunk | 40 | York County |
| Rangeley Water District | ME0091330 | CWS | Rangeley | 1,378 | Franklin County |
| Raymond Elementary School | ME0094729 | NTNCWS | Windham | 280 | Cumberland County |
| Raymond Woods Townhouses | ME0092307 | CWS | Scituate | 50 | Cumberland County |
| Readfield Corner Water Association | ME0092100 | CWS | Winthrop | 54 | Kennebec County |
| Renys Distribution Center | ME0094751 | NTNCWS | Newcastle | 90 | Lincoln County |
| Revision Energy Montville | ME0092731 | NTNCWS | Montville | 42 | Cumberland County, Waldo County |
| Rhymes And Reasons Early Learning Center | ME0095018 | NTNCWS | Sabattus | 42 | Androscoggin County |
| Richmond Utilities District | ME0091370 | CWS | Richmond | 1,492 | Sagadahoc County |
| Rise & Shine Child Care Center | ME0094769 | NTNCWS | New Gloucester | 81 | Cumberland County |
| Rivers Edge Mobile Home Community | ME0007378 | CWS | Burlington | 75 | York County |
| Riverside Court | ME0002429 | CWS | Houlton | 100 | Aroostook County |
| Riverside Terrace | ME0003017 | CWS | Canaan | 350 | Somerset County |
| Robbins Lumber | ME0094307 | NTNCWS | Searsmont | 108 | Waldo County |
| Rocky Ridge Subdivision | ME0092791 | CWS | Brewer | 64 | Penobscot County |
| Rocky Ridge Subdivision Ii | ME0192791 | CWS | Brewer | 40 | Penobscot County |
| Round Stone Mobile Home Park | ME0095600 | CWS | Candia | 70 | Kennebec County |
| Rsu 01 Phippsburg Elementary School | ME0000488 | NTNCWS | Bath | 120 | Sagadahoc County |
| Rsu 03 Monroe Elementary School | ME0000419 | NTNCWS | Unity | 71 | Waldo County |
| Rsu 03 Mt View School | ME0100629 | NTNCWS | Unity | 1,100 | Waldo County |
| Rsu 03 Troy Central School | ME0000637 | NTNCWS | Unity | 85 | Waldo County |
| Rsu 03 Unity Elementary School | ME0000641 | NTNCWS | Unity | 45 | Waldo County |
| Rsu 04 Carrie Ricker School | ME0094672 | NTNCWS | Wales | 388 | Kennebec County |
| Rsu 04 Libby Tozier School | ME0000377 | NTNCWS | Wales | 213 | Kennebec County |
| Rsu 05 Durham Community School | ME0009679 | NTNCWS | Freeport | 504 | Androscoggin County |
| Rsu 05 Pownal Elementary School | ME0008643 | NTNCWS | Freeport | 154 | Cumberland County |
| Rsu 10 Hartford-Sumner Elementary School | ME0000623 | NTNCWS | Rumford | 342 | Oxford County |
| Rsu 12 Palermo Consolidated School | ME0000476 | NTNCWS | Somerville | 151 | Waldo County |
| Rsu 12 Somerville Elementary School | ME0000596 | NTNCWS | Somerville | 29 | Lincoln County |
| Rsu 12 Whitefield Elementary School | ME0000687 | NTNCWS | Somerville | 211 | Lincoln County |
| Rsu 12 Windsor Elementary School | ME0000697 | NTNCWS | Somerville | 360 | Kennebec County |
| Rsu 18 Belgrade Central School | ME0000083 | NTNCWS | Oakland | 282 | Kennebec County |
| Rsu 18 China Middle School | ME0000175 | NTNCWS | Oakland | 212 | Kennebec County |
| Rsu 18 China Primary School | ME0093874 | NTNCWS | Oakland | 310 | Kennebec County |
| Rsu 18 James H Bean School | ME0000587 | NTNCWS | Oakland | 300 | Kennebec County |
| Rsu 19 Etna-Dixmont Elementary School | ME0000222 | NTNCWS | Newport | 193 | Penobscot County |
| Rsu 24 Cave Hill School | ME0000211 | NTNCWS | Sullivan | 83 | Hancock County |
| Rsu 24 Ella Lewis School | ME0000614 | NTNCWS | Sullivan | 97 | Washington County |
| Rsu 24 Mountain View School | ME0009846 | NTNCWS | Sullivan | 200 | Hancock County |
| Rsu 24 Peninsula Elementary School | ME0092395 | NTNCWS | Sullivan | 117 | Hancock County |
| Rsu 34 Alton Elementary School | ME0094408 | NTNCWS | Old Town | 95 | Penobscot County |
| Rsu 35 Marshwood High School | ME0094637 | NTNCWS | Eliot | 760 | York County |
| Rsu 35 Marshwood Middle School | ME0000216 | NTNCWS | Eliot | 530 | York County |
| Rsu 38 Maranacook Community School | ME0009728 | NTNCWS | Readfield | 816 | Kennebec County |
| Rsu 38 Mt Vernon Elementary School | ME0008636 | NTNCWS | Readfield | 117 | Kennebec County |
| Rsu 38 Readfield Elementary School | ME0000530 | NTNCWS | Readfield | 273 | Kennebec County |
| Rsu 38 Wayne Elementary School | ME0193827 | NTNCWS | Readfield | 81 | Kennebec County |
| Rsu 40 Medomak Middle School | ME0094821 | NTNCWS | Union | 320 | Lincoln County |
| Rsu 40 Medomak Valley High School | ME0000650 | NTNCWS | Union | 669 | Lincoln County |
| Rsu 40 Prescott Memorial School | ME0000655 | NTNCWS | Union | 130 | Knox County |
| Rsu 40 Union Elementary-Middle School | ME0000640 | NTNCWS | Union | 180 | Knox County |
| Rsu 56 Dirigo Elementary School | ME0092345 | NTNCWS | Dixfield | 420 | Oxford County |
| Rsu 57 Line Elementary School | ME0018559 | NTNCWS | Waterboro | 340 | York County |
| Rsu 57 Lyman Elementary School | ME0012826 | NTNCWS | Waterboro | 325 | York County |
| Rsu 57 Shapleigh Memorial School | ME0000585 | NTNCWS | Waterboro | 200 | York County |
| Rsu 63 Holbrook School | ME0000303 | NTNCWS | Holden | 250 | Penobscot County |
| Rsu 63 Holden School | ME0000302 | NTNCWS | Holden | 148 | Penobscot County |
| Rsu 64 Central Community Elementary | ME0092515 | NTNCWS | Corinth | 550 | Penobscot County |
| Rsu 64 Central Middle & High School | ME0015528 | NTNCWS | Corinth | 615 | Penobscot County |
| Rsu 68-Administration Campus | ME0092394 | NTNCWS | Dover-Foxcroft | 70 | Piscataquis County |
| Rsu 71 Ames Elementary School | ME0000579 | NTNCWS | Belfast | 150 | Waldo County |
| Rsu 71 Kermit S Nickerson School | ME0000625 | NTNCWS | Belfast | 107 | Waldo County |
| Rsu 73 Spruce Mountain Primary School | ME0000380 | NTNCWS | Livermore Falls | 413 | Androscoggin County |
| Rsu 87 Caravel Middle School | ME0000168 | NTNCWS | Carmel | 243 | Penobscot County |
| Rsu 87 Carmel Elementary School | ME0093805 | NTNCWS | Carmel | 201 | Penobscot County |
| Rsu 87 Suzanne M Smith Elem School | ME0094653 | NTNCWS | Carmel | 249 | Penobscot County |
| Rsu 89 Katahdin Elementary | ME0000611 | NTNCWS | Stacyville | 220 | Penobscot County |
| Rsu 89 Katahdin High School | ME0011158 | NTNCWS | Stacyville | 179 | Penobscot County |
| Sabattus Sanitary District | ME0091580 | CWS | Sabattus | 1,688 | Androscoggin County |
| Sabre Corporation | ME0094318 | NTNCWS | South Casco | 100 | Cumberland County |
| Sabre Yacht Facility | ME0194318 | NTNCWS | South Casco | 40 | Cumberland County |
| Safe Harbor Great Island | ME0092539 | NTNCWS | Harpswell | 38 | Cumberland County |
| Sandy Bottom Estates Mhp | ME0095615 | CWS | Sudbury | 168 | Androscoggin County |
| Sandy Creek Housing | ME0092339 | CWS | Portland | 50 | Cumberland County |
| Sandy Stream Village | ME0091860 | CWS | Farmingdale | 60 | Waldo County |
| Scarborough Gardens | ME0091416 | CWS | Cumberland | 45 | Cumberland County |
| School Around Us | ME0094404 | NTNCWS | Arundel | 40 | York County |
| School Street Village | ME0092190 | CWS | Farmingdale | 50 | Waldo County |
| Scovil Building-North Street | ME0092528 | NTNCWS | Blaine | 44 | Aroostook County |
| Scroggins Mobile Home Park | ME0090373 | CWS | Carmel | 73 | Penobscot County |
| Seacoast Waldorf School | ME0092503 | NTNCWS | Eliot | 140 | York County |
| Searsport Water District | ME0091440 | CWS | Searsport | 2,763 | Waldo County |
| Sebago Elementary School | ME0000583 | NTNCWS | Sebago | 135 | Cumberland County |
| Seedlings Preschool & Childcare Llc | ME0092838 | NTNCWS | South China | 25 | Kennebec County |
| Seedlings To Sunflowers | ME0092682 | NTNCWS | Gorham | 120 | Cumberland County |
| Serendipity Creek Childcare Center | ME0092456 | NTNCWS | Gray | 65 | Cumberland County |
| Shady Oaks Mobile Home Park | ME0001009 | CWS | El Segundo | 185 | York County |
| Sheepscot Valley Childrens House | ME0094554 | NTNCWS | Wiscasset | 85 | Lincoln County |
| Sherwood Forest Mhp | ME0015106 | CWS | Burnham | 68 | Hancock County |
| Silver Lake Estates | ME0092722 | CWS | Bucksport | 110 | Hancock County |
| Sipayik Elementary School | ME0092770 | NTNCWS | Pleasant Point | 187 | Washington County |
| Skyline Trailer Park | ME0092806 | CWS | Carmel | 28 | Aroostook County |
| Smarties Early Learning Center | ME0092714 | NTNCWS | Naples | 39 | Cumberland County |
| Snappers | ME0092778 | NTNCWS | Deer Isle | 29 | Hancock County |
| Solon Water District | ME0091460 | CWS | Solon | 475 | Somerset County |
| Somerset Elementary School | ME0092726 | NTNCWS | Newport | 170 | Somerset County |
| South Freeport Water District | ME0091480 | CWS | Poland | 960 | Cumberland County |
| South Penobscot Water Association | ME0092060 | CWS | Penobscot | 38 | Hancock County |
| South Slope Estates Mhp | ME0095656 | CWS | Carmel | 100 | Penobscot County |
| Southern Aroostook Comm School | ME0009401 | NTNCWS | Dyer Brook | 400 | Aroostook County |
| Southwest Harbor Water & Sewer District | ME0091490 | CWS | Southwest Harbor | 2,480 | Hancock County |
| Spinsfield Commons | ME0095655 | CWS | Bangor | 45 | Hancock County |
| Spring Rock Park | ME0092301 | CWS | Leeds | 50 | Androscoggin County |
| Springbrook Mobile Home Court | ME0003639 | CWS | Wales | 40 | Androscoggin County |
| Spurwink School Inc-Chelsea | ME0094695 | NTNCWS | Scarborough | 87 | Kennebec County |
| Squire Court Llc | ME0004295 | CWS | Portland | 75 | Kennebec County |
| St Agatha Housing | ME0091840 | CWS | Fort Kent | 30 | Aroostook County |
| St Croix Regional Family Health Center | ME0094993 | NTNCWS | Princeton | 120 | Washington County |
| St Francis Water Department | ME0091390 | CWS | St Francis | 100 | Aroostook County |
| St John Valley Voc/Tech Center | ME0093829 | NTNCWS | Frenchville | 135 | Aroostook County |
| St Josephs Memory Care | ME0095090 | CWS | Frenchville | 143 | Aroostook County |
| Stanley Subaru | ME0092597 | NTNCWS | Trenton | 40 | Hancock County |
| Starks Water District | ME0091500 | CWS | Starks | 45 | Somerset County |
| Step By Step Child Care Inc | ME0094709 | NTNCWS | Milbridge | 70 | Washington County |
| Stepping Stones Early Learning-Greene | ME0092480 | NTNCWS | Greene | 141 | Androscoggin County |
| Stepping Stones Learning Center-Eliot | ME0094762 | NTNCWS | Eliot | 70 | York County |
| Stepping Stones/Montessori School | ME0094794 | NTNCWS | Augusta | 99 | Kennebec County |
| Stillwater Mobile Home Park | ME0005645 | CWS | Bangor | 70 | Penobscot County |
| Stonington Manor | ME0092120 | CWS | Stonington | 44 | Hancock County |
| Stonington Water Company | ME0091510 | CWS | Winterport | 683 | Hancock County, Knox County |
| Streamside Pines Mobile Home Park | ME0001363 | CWS | Bangor | 183 | Penobscot County |
| Streets Mobile Home Park | ME0095701 | CWS | Old Town | 65 | Penobscot County |
| Strong Water District | ME0091530 | CWS | Strong | 500 | Franklin County |
| Sues Place Daycare | ME0092492 | NTNCWS | Biddeford | 44 | York County |
| Sugarloaf Water Association | ME0091690 | CWS | Carrabassett Valley | 1,730 | Franklin County |
| Summer Haven Apartments-Bldg 1 | ME0092291 | CWS | Readfield | 55 | Kennebec County |
| Summer Haven Apartments-Bldg 3 | ME0292291 | CWS | Readfield | 25 | Kennebec County |
| Summit Achievement | ME0092354 | NTNCWS | Stow | 78 | Oxford County |
| Summit Learning Center | ME0092886 | NTNCWS | Ellsworth | 71 | Hancock County |
| Sun Hancock Heights- East | ME0007242 | CWS | Bangor | 158 | Hancock County |
| Sun Hancock Heights-West | ME0107242 | CWS | Bangor | 155 | Hancock County |
| Sunday River-Jordan Hotel | ME0094648 | NTNCWS | Newry | 80 | Oxford County |
| Sunday River-Lower System | ME0092006 | NTNCWS | Newry | 162 | Oxford County |
| Sunday River-Road Runner System | ME0092011 | NTNCWS | Newry | 267 | Oxford County |
| Sunny Gables- Glenburn Housing | ME0090615 | CWS | Bangor | 60 | Penobscot County |
| Sunrise Hill Estates | ME0095525 | CWS | Somersworth | 100 | York County |
| Sunrise Serenity Tp | ME0092853 | CWS | Sabattus | 38 | Somerset County |
| Sunset Gardens Trailer Park Inc | ME0007940 | CWS | Lewiston | 73 | Androscoggin County |
| Surry Elementary School | ME0000624 | NTNCWS | Blue Hill | 166 | Hancock County |
| Sweet Pea Childcare | ME0092432 | NTNCWS | Eliot | 70 | York County |
| Tanglewood Mobile Estates 2 | ME0107379 | CWS | Hollis Center | 103 | York County |
| Tem Inc | ME0094957 | NTNCWS | Buxton | 40 | York County |
| Tenants Harbor Water District | ME0092335 | CWS | Poland | 378 | Knox County |
| Tex Tech Industries | ME0094323 | NTNCWS | North Monmouth | 130 | Kennebec County |
| The Ecology Learning Center | ME0092833 | NTNCWS | Unity | 127 | Waldo County |
| The Hinckley Co - 44-Plant-Bldg 2 | ME0094782 | NTNCWS | Trenton | 77 | Hancock County |
| The Meadows | ME0095010 | CWS | Greene | 65 | Androscoggin County |
| The Pines At Arundel | ME0095659 | CWS | Epsom | 105 | York County |
| The Sandy Point Water Company | ME0091400 | CWS | Stockton Springs | 98 | Waldo County |
| The Scotts Company | ME0094641 | NTNCWS | Medway | 31 | Penobscot County |
| The Talaria Company Llc (Bldg 1) | ME0094693 | NTNCWS | Trenton | 104 | Hancock County |
| The Willow School | ME0092883 | NTNCWS | Cumberland | 28 | Cumberland County |
| Three Rivers M H Community | ME0008251 | CWS | Sudbury | 63 | Piscataquis County |
| Tidal Brook Development | ME0092318 | CWS | Freeport | 35 | Cumberland County |
| Timberline Village | ME0095610 | CWS | Waterville | 95 | Somerset County |
| Tiny Creations Daycare | ME0092768 | NTNCWS | Litchfield | 41 | Kennebec County |
| Tissues Assisted Living | ME0094622 | NTNCWS | Athens | 35 | Somerset County |
| Together Wee Grow | ME0092483 | NTNCWS | China | 83 | Kennebec County |
| Togus Pond Mobile Home Park | ME0095685 | CWS | Sabattus | 53 | Kennebec County, Lincoln County |
| Topsham Mobile Home Park Inc | ME0003374 | CWS | Topsham | 243 | Sagadahoc County |
| Town & Country Motel Apartments | ME0007374 | CWS | Bangor | 44 | Penobscot County |
| Town & Country Trailer Park | ME0008921 | CWS | Alfred | 48 | Penobscot County, York County |
| Town And Country Apartments | ME0092359 | CWS | Presque Isle | 136 | Aroostook County |
| Town And Country Ways Mhp | ME0095660 | CWS | Benton | 75 | Kennebec County |
| Town Hall Apts - Lagrange | ME0092298 | CWS | Bangor | 60 | Penobscot County |
| Town Of Minot | ME0094804 | NTNCWS | Minot | 256 | Androscoggin County |
| Towne Center-Ridgewood Apartments | ME0091373 | CWS | Bangor | 60 | Penobscot County |
| Tree Frog Learning Center | ME0092635 | NTNCWS | Barrignton | 49 | York County |
| Trenton School | ME0012848 | NTNCWS | Trenton | 165 | Hancock County |
| True North Maine | ME0194605 | NTNCWS | Machiasport | 50 | Washington County |
| Turner Square Apartments | ME0092150 | CWS | Portland | 63 | Androscoggin County |
| Twin Pines Estates #1 | ME0003660 | CWS | Hollis Center | 63 | York County |
| Twin Pines Estates #2 | ME0103660 | CWS | Hollis Center | 50 | York County |
| Um Darling Marine Ctr #1 | ME0098262 | NTNCWS | Walpole | 35 | Lincoln County |
| Unity By The Stream Llc | ME0095570 | CWS | Hampden | 88 | Waldo County |
| Us Border Patrol Station-Hodgdon | ME0094628 | NTNCWS | Augusta | 80 | Aroostook County |
| Us Border Patrol-Fort Fairfield | ME0094981 | NTNCWS | Van Buren | 50 | Aroostook County |
| Us Coast Guard Station-Jonesport | ME0091830 | CWS | Waterville | 25 | Washington County |
| Us Nps Acadia Natl Park Hq | ME0098573 | NTNCWS | Bar Harbor | 120 | Hancock County |
| Us Nps Acadia Natl Pk-Schoodic Facility | ME0098549 | NTNCWS | Bar Harbor | 35 | Hancock County |
| Versant Power- Maine Public Service | ME0094268 | NTNCWS | Bangor | 75 | Aroostook County |
| Versant Power-Lamoine Service | ME0094765 | NTNCWS | Hampden | 25 | Hancock County |
| Vigneaults Mobile Home Park | ME0009003 | CWS | Orono | 53 | Penobscot County |
| Village At Rockport #1 | ME0092711 | CWS | Camden | 30 | Knox County |
| Village At Rockport #2 | ME0192711 | CWS | Camden | 30 | Knox County |
| Village At Rockport #3 | ME0292711 | CWS | Camden | 25 | Knox County |
| Village At Rockport #4 | ME0392711 | CWS | Camden | 43 | Knox County |
| Village Green Mhp | ME0002580 | CWS | Bristol | 105 | Penobscot County |
| Waldo County Technical Center | ME0009181 | NTNCWS | Waldo | 181 | Waldo County |
| Waldoboro Water Dept | ME0091560 | CWS | Poland | 1,065 | Lincoln County |
| Wardtown Park | ME0007009 | CWS | Freeport | 150 | Cumberland County |
| Washburn Water & Sewer District | ME0091570 | CWS | Washburn | 688 | Aroostook County |
| Washington Academy #1 | ME0109306 | NTNCWS | East Machias | 425 | Washington County |
| Washington Academy #2 | ME0009306 | NTNCWS | East Machias | 425 | Washington County |
| Washington Academy #3 | ME0209306 | NTNCWS | East Machias | 96 | Washington County |
| Washington County Community College #1 | ME0309196 | NTNCWS | Calais | 99 | Washington County |
| Washington County Community College #2 | ME0109196 | NTNCWS | Calais | 150 | Washington County |
| Washington County Community College #3 | ME0009196 | NTNCWS | Calais | 400 | Washington County |
| Washington County Community College #4 | ME0209196 | NTNCWS | Calais | 50 | Washington County |
| Watch Me Grow Childcare & Preschool | ME0092899 | NTNCWS | Woolwich | 60 | Cumberland County |
| Waterboro Water District | ME0092250 | CWS | Biddeford | 470 | York County |
| Waypoint- Child Development Center | ME0094978 | NTNCWS | Sanford | 110 | York County |
| Weeks Mills Water System | ME0091590 | CWS | China | 45 | Kennebec County |
| West Paris Water District | ME0091600 | CWS | West Paris | 540 | Oxford County |
| West Ridge Manor | ME0095330 | CWS | Easton | 41 | Aroostook County |
| Whippoorwill Hill Mobile Home | ME0008716 | CWS | Bangor | 85 | Lincoln County |
| Whispering Pines Mhp | ME0092893 | CWS | Bangor | 50 | Waldo County |
| White Tail Ridge Association | ME0098233 | CWS | Bridgton | 123 | Cumberland County |
| Whitneys Family Supermarket | ME0094955 | NTNCWS | Corinth | 32 | Penobscot County |
| Wild Oaks Learning Center | ME0092760 | NTNCWS | Manchester | 61 | Kennebec County |
| Willowbrook Mobile Home Park | ME0095717 | CWS | Hermon | 75 | Penobscot County |
| Wilton Water Department | ME0091620 | CWS | Wilton | 2,800 | Franklin County |
| Windermere Apartments | ME0092308 | CWS | Easton | 50 | Aroostook County |
| Windswept Estates Mh Park | ME0002577 | CWS | Bangor | 75 | Penobscot County |
| Winter Harbor Water District | ME0091630 | CWS | Winter Harbor | 700 | Hancock County |
| Winterport Water District | ME0091640 | CWS | Winterport | 763 | Waldo County |
| Winthrop Utilities District | ME0091650 | CWS | Winthrop | 2,750 | Kennebec County |
| Wiscasset Water District | ME0091660 | CWS | Wiscasset | 1,970 | Lincoln County |
| Wood Pond Village | ME0092372 | CWS | Brunswick | 60 | Cumberland County |
| Wooded Grove Mobile Home Park | ME0008690 | CWS | Kenduskeag | 90 | Penobscot County |
| Woodfords Family Services | ME0094472 | NTNCWS | Westbrook | 128 | Kennebec County |
| Woodland Hills Condo Association | ME0091665 | CWS | South Berwick | 253 | York County |
| Wymans Hancock Freezer Dba Rtwb | ME0094714 | NTNCWS | Milbridge | 43 | Hancock County |
| Wymans Of Maine-C&D | ME0094725 | NTNCWS | Deblois | 49 | Washington County |
| Wymans Of Maine-Cherryfield Factory | ME0002539 | NTNCWS | Milbridge | 95 | Washington County |
| York County Shelters | ME0020883 | CWS | Alfred | 70 | York County |
| Youland Convenience Llc | ME0092619 | NTNCWS | Turner | 127 | Androscoggin County |