637 community and non-transient non-community water systems are listed for Alaska in EPA SDWIS. 30 were sampled under UCMR 5; 9 of those had at least one PFAS result at or above the reporting level, and 4 had a highest single result at or above a 2024 EPA limit (PFOA or PFOS 4 ppt, or Hazard Index 1).
Alaska 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 (30)
| System | PWSID | City | Population | Highest PFOA (ppt) | Highest PFOS (ppt) | Highest HI | Highest single result |
|---|---|---|---|---|---|---|---|
| Alyeska Creekside Apartments | AK2218653 | Girdwood | 60 | <MRL | <MRL | 0 | No PFAS detected |
| Barrow Utilities & Elec. Coop., Inc. (Bu | AK2320078 | Barrow | 4,900 | <MRL | 46.3 | 1.85 | PFOS ≥ 3 × its limit |
| City And Borough Of Juneau | AK2110342 | Juneau | 38,526 | <MRL | <MRL | 0 | No PFAS detected |
| College Utilities Corporation | AK2310900 | Fairbanks | 27,000 | 6.4 | <MRL | 1.05 | PFOA 1–3 × its limit |
| Cordova City Water | AK2293205 | Cordova | 2,700 | <MRL | <MRL | 0 | Other PFAS detected |
| Denali - Main / Front Country | AK2390594 | Denali Park | 4,122 | <MRL | <MRL | 0 | No PFAS detected |
| Doyon Utilities Jber - Richardson | AK2212039 | Fairbanks | 20,284 | <MRL | <MRL | 0 | No PFAS detected |
| Eek Water System | AK2270281 | Eek | 280 | <MRL | <MRL | 0 | No PFAS detected |
| Eielson - Air Force Base | AK2370625 | Eielson Afb | 11,870 | <MRL | <MRL | 0 | Other PFAS detected |
| Ft Wainwright - Main Post | AK2310918 | Fairbanks | 20,076 | <MRL | <MRL | 0.43 | Hazard Index below its limit |
| Ft. Greely / Du / Allen Army Airfield | AK2370798 | Fairbanks | 60 | <MRL | <MRL | 0 | No PFAS detected |
| Golden Heart Utilities | AK2310730 | Fairbanks | 78,324 | 5.4 | <MRL | 0.88 | PFOA 1–3 × its limit |
| Homer Water System | AK2240456 | Homer | 7,008 | <MRL | <MRL | 0 | No PFAS detected |
| Jber-Elmendorf | AK2211423 | Jber | 30,003 | <MRL | <MRL | 0 | No PFAS detected |
| Kenai Water System | AK2240448 | Kenai | 5,700 | <MRL | <MRL | 0 | No PFAS detected |
| Ketchikan Public Utilities | AK2120232 | Ketchikan | 8,937 | <MRL | <MRL | 0 | No PFAS detected |
| Kodiak Water System | AK2250011 | Kodiak | 9,547 | <MRL | <MRL | 0 | No PFAS detected |
| Moa Municipality Of Anchorage | AK2210906 | Anchorage | 221,351 | 9.1 | <MRL | 1.12 | PFOA 1–3 × its limit |
| Nome Joint Utility System | AK2340010 | Nome | 3,920 | <MRL | <MRL | 0 | No PFAS detected |
| North Pole Utilities | AK2310675 | North Pole | 4,005 | <MRL | <MRL | 0 | No PFAS detected |
| Palmer Water System | AK2226020 | Palmer | 8,111 | <MRL | <MRL | 0 | No PFAS detected |
| Seward | AK2240757 | Seward | 3,324 | <MRL | <MRL | 0 | No PFAS detected |
| Sitka | AK2130075 | Sitka | 9,448 | <MRL | <MRL | 0 | No PFAS detected |
| Skagway | AK2110601 | Skagway | 9,411 | <MRL | <MRL | 0 | No PFAS detected |
| Soldotna | AK2241054 | Soldotna | 4,807 | <MRL | <MRL | 0 | No PFAS detected |
| Unalaska Water System | AK2260309 | Unalaska | 9,400 | <MRL | <MRL | 0 | No PFAS detected |
| University Of Alaska - Fairbanks | AK2310683 | Fairbanks | 6,200 | <MRL | <MRL | 0.57 | Hazard Index below its limit |
| Valdez Water System - Main | AK2298103 | Valdez | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Valli Vue S/D Water System | AK2210605 | Anchorage | 794 | <MRL | <MRL | 0 | No PFAS detected |
| Wasilla Water System | AK2224646 | Wasilla | 18,492 | <MRL | <MRL | 0.42 | Hazard Index below its limit |
Not tested under UCMR 5 (607)
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 |
|---|---|---|---|---|---|
| Ac Alaska Commercial Store | AK2270427 | NTNCWS | Winnipeg | 475 | Bethel Census Area |
| Adak Utilities | AK2260595 | CWS | Adak | 325 | Aleutians West Census Area |
| Aec Gmt1 Camp Kuukpik | AK2330076 | NTNCWS | Deadhorse | 451 | North Slope Borough |
| Ak Addiction Rehabilitation Svcs Inc. | AK2220308 | CWS | Wasilla | 56 | Matanuska-Susitna Borough |
| Ak Child And Family | AK2210312 | NTNCWS | Anchorage | 100 | Anchorage Municipality |
| Ak Gateway Sd - Mentasta Lake | AK2380379 | NTNCWS | Tok | 43 | Copper River Census Area |
| Ak Gateway Sd - Northway Sch | AK2380303 | NTNCWS | Northway | 57 | Southeast Fairbanks Census Area |
| Ak Gateway Sd - Tetlin School | AK2381210 | NTNCWS | Tetlin | 42 | Southeast Fairbanks Census Area |
| Ak Gateway Sd - Tok School | AK2381480 | NTNCWS | Tok | 261 | Southeast Fairbanks Census Area |
| Akhiok | AK2250037 | CWS | Akhiok | 90 | Kodiak Island Borough |
| Akiachak Water System | AK2272747 | CWS | Akiachak | 627 | Bethel Census Area |
| Akiak Community Water System | AK2272005 | CWS | Akiak | 346 | Bethel Census Area |
| Akutan | AK2260252 | CWS | Akutan | 95 | Aleutians East Borough |
| Alakanuk Water System | AK2270362 | CWS | Alakanuk | 570 | Kusilvak Census Area |
| Alaska Bible College | AK2292099 | CWS | Glennallen | 50 | Copper River Census Area |
| Alaska Christian College | AK2249042 | NTNCWS | Soldotna | 70 | Kenai Peninsula Borough |
| Alaska H2O Inc | AK2222848 | CWS | Anchorage | 75 | Matanuska-Susitna Borough |
| Alaska Sales & Service Valley | AK2220134 | NTNCWS | Anchorage | 75 | Matanuska-Susitna Borough |
| Aleutian Estates #1 | AK2224159 | CWS | Wasilla | 63 | Matanuska-Susitna Borough |
| Allakaket Public Water System | AK2300816 | CWS | Allakaket | 135 | Yukon-Koyukuk Census Area |
| Alpine View Subdivision | AK2220488 | CWS | Big Lake | 50 | Matanuska-Susitna Borough |
| Alpine Woods Water System | AK2213598 | CWS | Anchorage | 200 | Anchorage Municipality |
| Alyeska Chalet Condos Hoa | AK2214007 | CWS | Girdwood | 60 | Anchorage Municipality |
| Alyeska Mccf #2 Camp | AK2320751 | NTNCWS | Anchorage | 51 | Fairbanks North Star Borough |
| Alyeska Ps 1 Perm | AK2333039 | NTNCWS | Anchorage | 100 | North Slope Borough |
| Alyeska Ps 4 Perm | AK2320036 | NTNCWS | Anchorage | 60 | Fairbanks North Star Borough |
| Alyeska Ps 5 Perm | AK2350023 | NTNCWS | Anchorage | 60 | Fairbanks North Star Borough |
| Alyeska Vmt East | AK2293164 | NTNCWS | Anchorage | 200 | Chugach Census Area |
| Alyeska Vmt Fabrication-Paint Shop | AK2330004 | NTNCWS | Anchorage | 50 | Chugach Census Area |
| Alyeska Vmt West | AK2291944 | NTNCWS | Anchorage | 150 | Chugach Census Area |
| Amazing Grace Lutheran Church | AK2214544 | NTNCWS | Anchorage | 354 | Anchorage Municipality |
| Amber Ridge Brentwood #1 | AK2220215 | CWS | Anchorage | 28 | Matanuska-Susitna Borough |
| Amber Ridge Brentwood #2 | AK2220216 | CWS | Anchorage | 28 | Matanuska-Susitna Borough |
| Amber Ridge/Park Place Apartments | AK2220151 | CWS | Anchorage | 210 | Matanuska-Susitna Borough |
| Ambler Community Water System | AK2300214 | CWS | Ambler | 261 | Northwest Arctic Borough |
| Anchor Point Safe Water Corporation | AK2247490 | CWS | Anchor Point | 1,000 | Kenai Peninsula Borough |
| Anchorage Grace Church 1 | AK2214049 | NTNCWS | Anchorage | 585 | Anchorage Municipality |
| Anchorage Junior Academy | AK2210702 | NTNCWS | Anchorage | 42 | Anchorage Municipality |
| Anchorage Sands Apartments | AK2211198 | CWS | Anchorage | 160 | Anchorage Municipality |
| Angoon Public Water | AK2130017 | CWS | Angoon | 450 | |
| Anvik Water System | AK2280171 | CWS | Anvik | 96 | Yukon-Koyukuk Census Area |
| Arctic Village Water System | AK2300222 | CWS | Arctic Village | 175 | Yukon-Koyukuk Census Area |
| Arkose Woods | AK2226057 | CWS | Big Lake | 90 | Matanuska-Susitna Borough |
| Asd Bear Valley Elementary | AK2213954 | NTNCWS | Anchorage | 524 | Anchorage Municipality |
| Asd Huffman Elementary School | AK2211059 | NTNCWS | Anchorage | 506 | Anchorage Municipality |
| Asd O Malley Elementary Sch | AK2211033 | NTNCWS | Anchorage | 370 | Anchorage Municipality |
| Asd Ravenwood School | AK2213904 | NTNCWS | Anchorage | 472 | Anchorage Municipality |
| Ashton Park | AK2249028 | CWS | Soldotna | 75 | Kenai Peninsula Borough |
| Atka | AK2260058 | CWS | Atka | 50 | Aleutians West Census Area |
| Atmautluak Water System | AK2271033 | CWS | Atmautluak | 311 | Bethel Census Area |
| Badger Plaza | AK2310625 | NTNCWS | Fairbanks | 547 | Fairbanks North Star Borough |
| Bartlett Cove Water Sys | AK2130198 | NTNCWS | Gustavus | 123 | |
| Bay View Trailer Court | AK2241101 | CWS | Soldotna | 51 | Kenai Peninsula Borough |
| Bbahc - Kanakanak Hospital | AK2261282 | CWS | Dillingham | 305 | Dillingham Census Area |
| Bbbsd Naknek | AK2260464 | NTNCWS | Naknek | 130 | Bristol Bay Borough |
| Beachside Estates | AK2243137 | CWS | Kenai | 60 | Kenai Peninsula Borough |
| Bear Mountain Condo Assn. | AK2213239 | CWS | Anchorage | 65 | Anchorage Municipality |
| Beaver Lk Resort / 2521 Outside Blvd. | AK2312457 | CWS | Eagle River | 52 | Fairbanks North Star Borough |
| Beaver Lk. Resort 2545/2555 Mission | AK2312504 | CWS | Eagle River | 102 | Fairbanks North Star Borough |
| Beaver Water System | AK2360230 | CWS | Beaver | 80 | Yukon-Koyukuk Census Area |
| Bella Vista Subdivision | AK2220439 | CWS | Anchorage | 266 | Matanuska-Susitna Borough |
| Bering St Sd - Teller Sc/Wash | AK2340248 | CWS | Teller | 295 | Nome Census Area |
| Berry Bluff Community Water System | AK2220493 | CWS | Big Lake | 25 | Matanuska-Susitna Borough |
| Bethel Heights Water System | AK2270346 | CWS | Bethel | 2,228 | Bethel Census Area |
| Bethel Native Corp Offices | AK2271106 | NTNCWS | Bethel | 99 | Bethel Census Area |
| Bethel Trailer Court | AK2271148 | CWS | Bethel | 446 | Bethel Census Area |
| Bethel Trooper Housing | AK2272011 | NTNCWS | Anchorage | 60 | Bethel Census Area |
| Bethel-City S/D Water | AK2271999 | CWS | Bethel | 1,660 | Bethel Census Area |
| Birch Run Estates | AK2220173 | CWS | Big Lake | 167 | Matanuska-Susitna Borough |
| Birchtree Charter School | AK2220248 | NTNCWS | Anchorage | 125 | Matanuska-Susitna Borough |
| Birchview Rental Properties, Llc | AK2310837 | CWS | Fairbanks | 31 | Fairbanks North Star Borough |
| Birchview Townhome Condos | AK2220310 | CWS | Wasilla | 25 | Matanuska-Susitna Borough |
| Birchwood Mhp | AK2213297 | CWS | Anchorage | 120 | Anchorage Municipality |
| Bluff View Acres Water System | AK2223624 | CWS | Wasilla | 100 | Matanuska-Susitna Borough |
| Borealis Alpha Water System | AK2211708 | CWS | Anchorage | 30 | Anchorage Municipality |
| Borealis Basecamp | AK2315609 | NTNCWS | Anchorage | 90 | Fairbanks North Star Borough |
| Brevig Mission Water System | AK2340418 | CWS | Brevig Mission | 442 | Nome Census Area |
| Bright Minds Learning Center | AK2220474 | NTNCWS | Wasilla | 77 | Matanuska-Susitna Borough |
| Bristol Bay Native Assoc. | AK2262902 | NTNCWS | Dillingham | 120 | Dillingham Census Area |
| Buckland Water System | AK2340125 | CWS | Buckland | 600 | Northwest Arctic Borough |
| Cameron Acres | AK2220473 | CWS | Wasilla | 80 | Matanuska-Susitna Borough |
| Camwell On The Green (Mhp) | AK2227220 | CWS | Wasilla | 33 | Matanuska-Susitna Borough |
| Cci Truck K510 | AK2249204 | NTNCWS | Nikiski | 25 | Kenai Peninsula Borough |
| Central Commercial Park | AK2220482 | CWS | Wasilla | 32 | Matanuska-Susitna Borough |
| Chalkyitsik Village Water | AK2300183 | CWS | Chalkyitsik | 76 | Yukon-Koyukuk Census Area |
| Chefornak Water System | AK2270338 | CWS | Chefornak | 513 | Bethel Census Area |
| Chena Hot Springs Resort | AK2310146 | NTNCWS | Fairbanks | 165 | Fairbanks North Star Borough |
| Chenega | AK2291952 | CWS | Anchorage | 50 | Chugach Census Area |
| Chevak Water System | AK2270320 | CWS | Chevak | 938 | Kusilvak Census Area |
| Chignik Bay Water System | AK2260228 | CWS | Chignik Bay | 199 | Lake and Peninsula Borough |
| Chignik Lagoon Water System | AK2261444 | CWS | Chignik Lagoon | 273 | Lake and Peninsula Borough |
| Chignik Lake Water System | AK2261096 | CWS | Chignik Lake | 200 | Lake and Peninsula Borough |
| Chilkat Indian Village | AK2110562 | CWS | Haines | 113 | Haines Borough |
| Chuathbaluk Water System | AK2272012 | CWS | Chuathbaluk | 123 | Bethel Census Area |
| Churchill Park | AK2110318 | CWS | Juneau | 250 | Juneau City and Borough |
| Circle Washeteria | AK2300769 | CWS | Circle | 110 | Yukon-Koyukuk Census Area |
| City Of Hooper Bay | AK2270312 | CWS | Hooper Bay | 1,375 | Kusilvak Census Area |
| Clarks Point Water System | AK2260202 | CWS | Clarks Point | 128 | Dillingham Census Area |
| Clear Air Station - Bldg 800 | AK2391710 | NTNCWS | Clear | 25 | Denali Borough |
| Clear Space Force Station – Lrdr | AK2392041 | NTNCWS | Clear | 60 | Denali Borough |
| Clear Space Force Station – Main | AK2390756 | CWS | Clear | 433 | Denali Borough |
| Coffman Cove | AK2120436 | CWS | Coffman Cove | 199 | Prince of Wales-Hyder Census Area |
| Cohoe Subdivision | AK2212924 | CWS | Anchorage | 36 | Anchorage Municipality |
| Cold Bay | AK2260414 | CWS | Cold Bay | 182 | Aleutians East Borough |
| College Park Home Owners Assoc | AK2243103 | CWS | Soldotna | 85 | Kenai Peninsula Borough |
| Colonial Park S/D | AK2211562 | CWS | Anchorage | 63 | Anchorage Municipality |
| Conoco Phillips Alpine Oilfield | AK2333460 | NTNCWS | Anchorage | 208 | North Slope Borough |
| Conocophillips Kuparuk Ind. Center | AK2333241 | NTNCWS | Anchorage | 80 | North Slope Borough |
| Conocophillips Kuparuk Operations Center | AK2330031 | NTNCWS | Anchorage | 1,198 | North Slope Borough |
| Conocophillips Willow Construction Camp | AK2330158 | NTNCWS | Anchorage | 300 | North Slope Borough |
| Conocophillips Willow Operations Center | AK2330150 | NTNCWS | Anchorage | 620 | North Slope Borough |
| Copper Center | AK2243006 | NTNCWS | Soldotna | 175 | Kenai Peninsula Borough |
| Country Field Water Co. | AK2220029 | CWS | Big Lake | 1,166 | Matanuska-Susitna Borough |
| Country Lane Apartments | AK2211164 | CWS | Anchorage | 60 | Anchorage Municipality |
| Cozy Northern Homes, Llc | AK2310895 | CWS | Livingston | 38 | Fairbanks North Star Borough |
| Craig Public Works | AK2120193 | CWS | Craig | 1,475 | Prince of Wales-Hyder Census Area |
| Crbrha Chitina Hud Housing | AK2299001 | CWS | Glennallen | 50 | Copper River Census Area |
| Crbrha Mckinley Bldg Water Supply | AK2292186 | CWS | Glennallen | 30 | Copper River Census Area |
| Creekwood Park Water System | AK2220154 | CWS | Woods Cross | 192 | Matanuska-Susitna Borough |
| Crimson View S/D Water Assn. | AK2224329 | CWS | Wasilla | 118 | Matanuska-Susitna Borough |
| Crna Tazlina Health Clinic | AK2299037 | NTNCWS | Glennallen | 87 | Copper River Census Area |
| Crna Water Haul Truck | AK2299027 | CWS | Glennallen | 40 | Copper River Census Area |
| Crooked Creek Watering Point | AK2280302 | CWS | Crooked Creek | 147 | Bethel Census Area |
| Crossroads Center Mall | AK2225989 | NTNCWS | Anchorage | 50 | Matanuska-Susitna Borough |
| Crsd Glennallen High School | AK2291407 | NTNCWS | Glennallen | 396 | Copper River Census Area |
| Crsd Kenny Lake Elem. New Well | AK2299071 | NTNCWS | Glennallen | 56 | Copper River Census Area |
| Crsd Kenny Lake High School | AK2294002 | NTNCWS | Glennallen | 30 | Copper River Census Area |
| Cruz Water Haul Truck 1934 | AK2330161 | NTNCWS | Deadhorse | 133 | North Slope Borough |
| Cubbys Marketplace | AK2220270 | NTNCWS | Talkeetna | 278 | Matanuska-Susitna Borough |
| Dearmoun Ii | AK2211936 | CWS | Anchorage | 80 | Anchorage Municipality |
| Deering Utility System | AK2340222 | CWS | Deering | 160 | Northwest Arctic Borough |
| Delta Junction Iga & Home Town Square | AK2372716 | NTNCWS | Delta Junction | 360 | Southeast Fairbanks Census Area |
| Denali - Rock Creek Hq. | AK2390586 | CWS | Denali Park | 300 | Denali Borough |
| Denali Borough Sd - Tri-Valley | AK2390285 | NTNCWS | Anderson | 226 | Denali Borough |
| Denali Preschool & Learning Center | AK2391061 | NTNCWS | Healy | 37 | Denali Borough |
| Dgsd - Delta Elementary School | AK2372677 | NTNCWS | Delta Junction | 233 | Southeast Fairbanks Census Area |
| Dgsd - Delta School | AK2370146 | NTNCWS | Delta Junction | 176 | Southeast Fairbanks Census Area |
| Dillingham Water System | AK2260197 | CWS | Dillingham | 2,419 | Dillingham Census Area |
| Diomede Joint Utilities | AK2340141 | CWS | Diomide | 83 | Nome Census Area |
| Dj Development | AK2225361 | NTNCWS | Wasilla | 175 | Matanuska-Susitna Borough |
| Dot & Pf Fox Watering Point | AK2310277 | CWS | Fairbanks | 350 | Fairbanks North Star Borough |
| Dot & Pf Seward Meridian Office Building | AK2225983 | NTNCWS | Anchorage | 30 | Matanuska-Susitna Borough |
| Eagle Log Wellhouse | AK2382096 | CWS | Eagle | 192 | Southeast Fairbanks Census Area |
| Eaglecrest Condos Assn. | AK2213792 | CWS | Anchorage | 120 | Anchorage Municipality |
| East 98Th Avenue Well Hoa | AK2210639 | CWS | Anchorage | 76 | Anchorage Municipality |
| East Big Lake Mall | AK2224581 | NTNCWS | Wasilla | 546 | Matanuska-Susitna Borough |
| Egegik | AK2262238 | CWS | Egegik | 485 | Lake and Peninsula Borough |
| Eklutna Gate | AK2213019 | CWS | Chugiak | 45 | Anchorage Municipality |
| Elim Water Supply | AK2340345 | CWS | Elim | 320 | Nome Census Area |
| Elsinore Estates Subdivision | AK2224036 | CWS | Palmer | 120 | Matanuska-Susitna Borough |
| Emmonak Water System | AK2270299 | CWS | Emmonak | 820 | Kusilvak Census Area |
| Endicott - Hilcorp | AK2333487 | NTNCWS | Anchorage | 77 | North Slope Borough |
| Equestrian Acres | AK2227199 | CWS | Palmer | 950 | Matanuska-Susitna Borough |
| Ernie Turner Center | AK2218820 | NTNCWS | Anchorage | 31 | Anchorage Municipality |
| Everetts At Mat Su Resort | AK2220375 | NTNCWS | Wasilla | 355 | Matanuska-Susitna Borough |
| Faa King Salmon Family Housing | AK2263014 | CWS | King Salmon | 61 | Bristol Bay Borough |
| Fairbanks Water Company Llc | AK2315586 | CWS | Fairbanks | 325 | Fairbanks North Star Borough |
| Fairhill Christian School | AK2314938 | NTNCWS | Fairbanks | 150 | Fairbanks North Star Borough |
| False Pass Treatment Plant | AK2262199 | CWS | False Pass | 393 | Aleutians East Borough |
| Firedance Tutoring Center | AK2220469 | NTNCWS | Wasilla | 150 | Matanuska-Susitna Borough |
| Forest Park Tc | AK2210794 | CWS | Chugiak | 175 | Anchorage Municipality |
| Fort Knox Mine | AK2314093 | NTNCWS | Fairbanks | 250 | Fairbanks North Star Borough |
| Forty Niner Homeowners Assoc. | AK2224028 | CWS | Wasilla | 39 | Matanuska-Susitna Borough |
| Frazier'S Way Business Park | AK2220481 | NTNCWS | Encino | 115 | Matanuska-Susitna Borough |
| Ft Wainwright / Drmo | AK2314051 | NTNCWS | Fairbanks | 35 | Fairbanks North Star Borough |
| Ft. Greely - Gmd Missile Fac. Complex | AK2372627 | NTNCWS | Ft. Greely | 200 | Southeast Fairbanks Census Area |
| Ft. Greely - Main Post | AK2370780 | CWS | Fairbanks | 1,257 | Southeast Fairbanks Census Area |
| Ft. Yukon Public Water System | AK2360256 | CWS | Fort Yukon | 665 | Yukon-Koyukuk Census Area |
| G A Phillips S/D | AK2211724 | CWS | Anchorage | 102 | Anchorage Municipality |
| Galena Wtp1 - City | AK2360272 | CWS | Galena | 490 | Yukon-Koyukuk Census Area |
| Galena Wtp2 - Gila | AK2360159 | CWS | Galena | 290 | Yukon-Koyukuk Census Area |
| Gambell Water System | AK2340751 | CWS | Gambell | 669 | Nome Census Area |
| Gemstone Estates | AK2220146 | CWS | Big Lake | 75 | Matanuska-Susitna Borough |
| Girdwood Water System | AK2212021 | CWS | Anchorage | 2,625 | Anchorage Municipality |
| Glacier Valley Water Company | AK2212267 | CWS | Anchorage | 120 | Anchorage Municipality |
| Glencaren Court | AK2210689 | CWS | Anchorage | 828 | Anchorage Municipality |
| Glenn Muldoon Tc | AK2213336 | CWS | Anchorage | 354 | Anchorage Municipality |
| Glennallen Water Works | AK2291499 | CWS | Glennallen | 365 | Copper River Census Area |
| Golden Nugget Rv Park, Malaspina Mhp | AK2212128 | CWS | Anchorage | 600 | Anchorage Municipality |
| Golovin Community Water System | AK2340214 | CWS | Golovin | 150 | Nome Census Area |
| Goodnews Bay | AK2270257 | CWS | Anchorage | 250 | Bethel Census Area |
| Grace Evangelical Lutheran | AK2245325 | NTNCWS | Kenai | 110 | Kenai Peninsula Borough |
| Grayling Water System | AK2280066 | CWS | Grayling | 207 | Yukon-Koyukuk Census Area |
| Greatland Village Park | AK2243771 | CWS | Kenai | 30 | Kenai Peninsula Borough |
| Green Acres Tc | AK2210338 | CWS | Anchorage | 96 | Anchorage Municipality |
| Greenbrook S/D | AK2210346 | CWS | Anchorage | 123 | Anchorage Municipality |
| Gulkana Village | AK2380214 | CWS | Gulkana | 54 | Copper River Census Area |
| Gustavus Water System | AK2130596 | NTNCWS | Gustavus | 117 | |
| Gvea - Healy Power Plant | AK2391134 | NTNCWS | Fairbanks | 56 | Denali Borough, Fairbanks North Star Borough |
| H2O 2U, Dba The Fill | AK2314653 | CWS | Fairbanks | 2,400 | Fairbanks North Star Borough |
| Haines Borough | AK2111566 | CWS | Haines | 2,376 | Haines Borough |
| Heart Haven Estates | AK2220153 | CWS | Wasilla | 56 | Matanuska-Susitna Borough |
| Heart Of The Shire | AK2263061 | NTNCWS | King Salmon | 79 | Bristol Bay Borough |
| Heavenly Meadows | AK2226014 | CWS | Wasilla | 88 | Matanuska-Susitna Borough |
| Hecla Greens Creek 920 Level | AK2119205 | NTNCWS | Juneau | 175 | Juneau City and Borough |
| Hecla Greens Creek Hawk Inlet | AK2113560 | NTNCWS | Juneau | 151 | Juneau City and Borough |
| Heritage Park | AK2227212 | CWS | Palmer | 8 | Matanuska-Susitna Borough |
| Highland Pride Mobile Home Park | AK2240503 | CWS | Kenai | 100 | Kenai Peninsula Borough |
| Hilcorp Cwtf | AK2333013 | NTNCWS | Anchorage | 475 | North Slope Borough |
| Hilcorp Oliktok/Opp & Nikaitchuq/Noc | AK2330070 | NTNCWS | Anchorage | 220 | North Slope Borough |
| Hilcorp Pboc | AK2331011 | NTNCWS | Anchorage | 1,200 | North Slope Borough |
| Hilcorp Rig Tenders Well #3 | AK2249211 | NTNCWS | Anchorage | 125 | Kenai Peninsula Borough |
| Hilcorp Spy Island Ds | AK2330071 | NTNCWS | Anchorage | 120 | North Slope Borough |
| Hilcorp Water Haul Trailer -1208 | AK2330074 | NTNCWS | Anchorage | 300 | North Slope Borough |
| Hilcorp Water Truck #34-008 | AK2330007 | NTNCWS | Anchorage | 700 | North Slope Borough |
| Hilcorp Water Truck #34-011 | AK2330029 | NTNCWS | Anchorage | 700 | North Slope Borough |
| Hilcorp Water Truck #34-016 | AK2330098 | NTNCWS | Anchorage | 700 | North Slope Borough |
| Hilcorp Water Truck #34-017 | AK2330028 | NTNCWS | Anchorage | 600 | North Slope Borough |
| Hill Timber Estates | AK2223983 | CWS | Palmer | 120 | Matanuska-Susitna Borough |
| Hillside Park S/D | AK2212461 | CWS | Anchorage | 144 | Anchorage Municipality |
| Holy Cross Water System | AK2280074 | CWS | Anchorage | 182 | Yukon-Koyukuk Census Area |
| Homer Drive Apts. | AK2215566 | CWS | Eagle River | 50 | Anchorage Municipality |
| Homerun Oil Co. Water Hauler | AK2249263 | CWS | Homer | 100 | Kenai Peninsula Borough |
| Homestead Hills | AK2211669 | CWS | Anchorage | 50 | Anchorage Municipality |
| Hoonah Pws | AK2130067 | CWS | Hoonah | 980 | Hoonah-Angoon Census Area |
| Hughes Public Water Supply | AK2300272 | CWS | Hughes | 107 | Yukon-Koyukuk Census Area |
| Huslia Public Water System | AK2300191 | CWS | Huslia | 323 | Southeast Fairbanks Census Area, Yukon-Koyukuk Census Area |
| Hydaburg | AK2120224 | CWS | Hydaburg | 415 | Prince of Wales-Hyder Census Area |
| Ice Services 10K Gal Water Unit 60A-W1 | AK2330126 | NTNCWS | Deadhorse | 403 | North Slope Borough |
| Ice Services Aurora Hotel | AK2330055 | NTNCWS | Deadhorse | 327 | North Slope Borough |
| Igiugig Water System | AK2260812 | CWS | Igiugig | 100 | Lake and Peninsula Borough |
| Inlet View Mhp Chugiak | AK2210354 | CWS | Eagle River | 47 | Anchorage Municipality |
| Interact Ministries | AK2226047 | NTNCWS | Palmer | 93 | Matanuska-Susitna Borough |
| Iris Circle Water Corporation | AK2226410 | CWS | Palmer | 37 | Matanuska-Susitna Borough |
| June Lake Airpark Subdivision | AK2220178 | CWS | Wasilla | 26 | Matanuska-Susitna Borough |
| Kachemak Selo #3 | AK2247953 | CWS | Homer | 150 | Kenai Peninsula Borough |
| Kake Municipal Water | AK2130083 | CWS | Kake | 415 | Prince of Wales-Hyder Census Area |
| Kaltag Public Water System | AK2360141 | CWS | Kaltag | 214 | Yukon-Koyukuk Census Area |
| Karluk Water System | AK2250087 | CWS | Karluk | 60 | Kodiak Island Borough |
| Kasaan | AK2120606 | CWS | Kasaan | 66 | Ketchikan Gateway Borough, Prince of Wales-Hyder Census Area |
| Kathy O Estates | AK2211897 | CWS | Anchorage | 242 | Anchorage Municipality |
| Kb Sub. Water Service Assoc. | AK2243658 | CWS | Soldotna | 170 | Kenai Peninsula Borough |
| Kenai Gas Field | AK2249177 | NTNCWS | Anchorage | 35 | Kenai Peninsula Borough |
| Kenai Marathon Maintenance Building | AK2249268 | NTNCWS | Kenai | 95 | Kenai Peninsula Borough |
| Kenai Refinery | AK2241745 | NTNCWS | Kenai | 150 | Kenai Peninsula Borough |
| Kenai Refinery Modular Offices | AK2249245 | NTNCWS | Kenai | 71 | Kenai Peninsula Borough |
| Kendall Automotive Group - Showroom | AK2225058 | NTNCWS | Wasilla | 55 | Matanuska-Susitna Borough |
| Kenny Lake Community Well | AK2291596 | CWS | Copper Center | 236 | Copper River Census Area |
| Kenny Lake Fire Hall | AK2292330 | CWS | Copper Center | 200 | Copper River Census Area |
| Kensington Mine Jualin Labor Camp | AK2111561 | NTNCWS | Juneau | 220 | Juneau City and Borough |
| Ketchikan H2O | AK2121479 | CWS | Ward Cove | 25 | Ketchikan Gateway Borough |
| Ketchikan Water, Truck 1 | AK2121527 | CWS | Ward Cove | 100 | Ketchikan Gateway Borough |
| Kiana Water System | AK2340230 | CWS | Kiana | 455 | Northwest Arctic Borough |
| King Cove | AK2260244 | CWS | Anchorage | 972 | Aleutians East Borough |
| Kingsberry Homeowners Assoc. | AK2212819 | CWS | Anchorage | 50 | Anchorage Municipality |
| Kipnuk Water System | AK2270736 | CWS | Kipnuk | 639 | Bethel Census Area |
| Kivalina K-12 School | AK2340882 | NTNCWS | Kotzebue | 217 | Northwest Arctic Borough |
| Kivalina Water System | AK2340117 | CWS | Kivalina | 452 | Northwest Arctic Borough |
| Klawock | AK2120169 | CWS | Klawock | 904 | Prince of Wales-Hyder Census Area |
| Knik Tribal Council Senior Housing Dev | AK2220501 | CWS | Wasilla | 128 | Matanuska-Susitna Borough |
| Knik Tribe - Dena'Ina Blended Learning | AK2220025 | NTNCWS | Wasilla | 110 | Matanuska-Susitna Borough |
| Knik-Fairview Ccs Early Learning Center | AK2220500 | NTNCWS | Wasilla | 128 | Matanuska-Susitna Borough |
| Kobuk Water System | AK2340565 | CWS | Kobuk | 93 | Northwest Arctic Borough |
| Kokhanok Water & Ww System | AK2263006 | CWS | Kokhanok | 160 | Lake and Peninsula Borough |
| Koliganek Water System | AK2260040 | CWS | Koliganek | 170 | Dillingham Census Area |
| Kongiganak Water System | AK2271025 | CWS | Kongiganak | 547 | Bethel Census Area |
| Kotlik Water System | AK2272004 | CWS | Anchorage | 617 | Kusilvak Census Area |
| Kotzebue Mun. Water System | AK2340060 | CWS | Kotzebue | 3,234 | Northwest Arctic Borough |
| Koyuk Public Water System | AK2340167 | CWS | Koyuk | 277 | Nome Census Area |
| Koyukuk Safewater Facility | AK2360214 | CWS | Koyukuk | 85 | Yukon-Koyukuk Census Area |
| Kpb Maintenance Shop | AK2248878 | NTNCWS | Soldotna | 50 | Kenai Peninsula Borough |
| Kpbsd Kalifornsky Beach Elem | AK2243064 | NTNCWS | Soldotna | 484 | Kenai Peninsula Borough |
| Kpbsd Nikiski Middle/High School | AK2244484 | NTNCWS | Soldotna | 439 | Kenai Peninsula Borough |
| Kpbsd Ninilchik | AK2240553 | NTNCWS | Soldotna | 216 | Kenai Peninsula Borough |
| Kpbsd North Star Elementary | AK2244125 | NTNCWS | Soldotna | 448 | Kenai Peninsula Borough |
| Kpbsd Skyview Middle School | AK2244329 | NTNCWS | Soldotna | 650 | Kenai Peninsula Borough |
| Kpbsd Sterling Elementary | AK2249011 | NTNCWS | Soldotna | 212 | Kenai Peninsula Borough |
| Kpbsd Tustumena Elementary | AK2240618 | NTNCWS | Soldotna | 185 | Kenai Peninsula Borough |
| Ksd Aniak Secondary School | AK2271732 | NTNCWS | Aniak | 80 | Bethel Census Area |
| Ksd George Morgan High School | AK2270833 | NTNCWS | Aniak | 50 | Bethel Census Area |
| Ksd Upper Kalskag Primary School | AK2272751 | NTNCWS | Aniak | 50 | Bethel Census Area |
| Kwethluk New Piped Water System | AK2272017 | CWS | Kwethluk | 760 | Bethel Census Area |
| Kwigillingok Washeteria | AK2271700 | CWS | Kwigillingok | 400 | Bethel Census Area |
| L&Psd Newhalen School | AK2260634 | NTNCWS | King Salmon | 85 | Lake and Peninsula Borough |
| L&Psd Port Alsworth School | AK2261575 | NTNCWS | King Salmon | 80 | Lake and Peninsula Borough |
| L&Psd Port Heiden School | AK2260676 | NTNCWS | King Salmon | 30 | Lake and Peninsula Borough |
| Lake O The Hills East | AK2213603 | CWS | Anchorage | 56 | Anchorage Municipality |
| Larrys Apartments | AK2370879 | CWS | Delta Junction | 44 | Southeast Fairbanks Census Area |
| Larsen Bay Water System | AK2250134 | CWS | Larsen Bay | 271 | Kodiak Island Borough |
| Liberty Tax Building | AK2220512 | NTNCWS | Wasilla | 80 | Matanuska-Susitna Borough |
| Little Friends Childcare | AK2226017 | NTNCWS | Palmer | 47 | Matanuska-Susitna Borough |
| Little Wildflowers Llc | AK2220084 | NTNCWS | Wasilla | 25 | Matanuska-Susitna Borough |
| Living Word Ministry | AK2380329 | CWS | Delta Jct. | 62 | Southeast Fairbanks Census Area |
| Lksd Atmautluak Joann A Alexie Memorial | AK2272757 | NTNCWS | Bethel | 123 | Bethel Census Area |
| Lksd Chefornak Chaptnguak Hs | AK2270914 | NTNCWS | Bethel | 230 | Bethel Census Area |
| Lksd Kipnuk Hs | AK2270728 | CWS | Bethel | 80 | Bethel Census Area |
| Lksd Kongiganak Hs & Elem | AK2271245 | NTNCWS | Bethel | 143 | Bethel Census Area |
| Lksd Kwigillingok Hs & Elem | AK2270964 | NTNCWS | Bethel | 117 | Bethel Census Area |
| Lksd Mekoryuk Nunivaarmiut Sc | AK2270972 | NTNCWS | Bethel | 67 | Bethel Census Area |
| Lksd Napakiak Hs & Elem | AK2271253 | CWS | Bethel | 80 | Bethel Census Area |
| Lksd Napaskiak Z J Williams Sc | AK2270980 | NTNCWS | Bethel | 161 | Bethel Census Area |
| Lksd Nightmute Hs & Elem | AK2271261 | NTNCWS | Bethel | 259 | Bethel Census Area |
| Lksd Tuntutuliak Angapak Sc | AK2271017 | NTNCWS | Bethel | 101 | Bethel Census Area |
| Lksd Tununak Paul Albert Hs | AK2270613 | CWS | Bethel | 385 | Bethel Census Area |
| Lower Kalskag Water System | AK2270697 | CWS | Bethel | 302 | Bethel Census Area |
| Lupine Mob Llc | AK2220506 | NTNCWS | Wasilla | 80 | Matanuska-Susitna Borough |
| Majestic Hills Subdivision | AK2226021 | CWS | Big Lake | 168 | Matanuska-Susitna Borough |
| Manh Choh Personnel Camp-Tok | AK2380947 | NTNCWS | Fairbanks | 200 | Southeast Fairbanks Census Area |
| Manley Community Water System | AK2300484 | CWS | Manley Hot Springs | 95 | Yukon-Koyukuk Census Area |
| Manokotak Heights W/S | AK2262246 | CWS | Manokotak | 215 | Dillingham Census Area |
| Manokotak Water System | AK2260090 | CWS | Manokotak | 293 | Dillingham Census Area |
| Manoogs Isle Mobile Home Park | AK2218630 | CWS | Anchorage | 935 | Anchorage Municipality |
| Maranatha Water Utilities | AK2216198 | CWS | Anchorage | 220 | Anchorage Municipality |
| Marshall Water System | AK2270273 | CWS | Marshall | 308 | Kusilvak Census Area |
| Mat Su Health Services Inc | AK2225977 | NTNCWS | Wasilla | 115 | Matanuska-Susitna Borough |
| Mat Su Title | AK2220141 | NTNCWS | Wasilla | 37 | Matanuska-Susitna Borough |
| Matanuska Heights Duchess | AK2227547 | CWS | Chugiak | 36 | Anchorage Municipality, Matanuska-Susitna Borough |
| Matsu Water Bottling Vine Rd | AK2220533 | CWS | Wasilla | 170 | Matanuska-Susitna Borough |
| Matthews Subdivision | AK2218822 | CWS | Anchorage | 32 | Anchorage Municipality |
| Mayflower Tc | AK2211619 | CWS | Anchorage | 650 | Anchorage Municipality |
| Mcgrath Water System | AK2280155 | CWS | Mcgrath | 341 | Yukon-Koyukuk Census Area |
| Meadow Brook Subdivision | AK2220037 | CWS | Big Lake | 465 | Matanuska-Susitna Borough |
| Meadow Lakes Center | AK2224557 | NTNCWS | Wasilla | 276 | Matanuska-Susitna Borough |
| Mekoryuk Washeteria Reservoir | AK2271562 | CWS | Mekoryuk | 198 | Bethel Census Area |
| Mentasta Washeteria/14 Plex | AK2381498 | CWS | Glennallen | 90 | Copper River Census Area |
| Meridian Park East | AK2220528 | NTNCWS | Wasilla | 105 | Matanuska-Susitna Borough |
| Mertarvik Water System | AK2272756 | CWS | Newtok | 170 | Bethel Census Area |
| Metlakatla | 100211202 | CWS | Metlakatla | 1,575 | Prince of Wales-Hyder Census Area |
| Midnight Sun Family Learning Center | AK2220098 | NTNCWS | Wasilla | 213 | Matanuska-Susitna Borough |
| Milne Point Unit - Hilcorp | AK2333364 | NTNCWS | Anchorage | 300 | North Slope Borough |
| Minto Community Water System | AK2300159 | CWS | Minto | 205 | Yukon-Koyukuk Census Area |
| Mountain Glory Subdivision | AK2226051 | CWS | Big Lake | 32 | Matanuska-Susitna Borough |
| Mountain View Apartments | AK2298002 | CWS | Anchorage | 48 | Anchorage Municipality |
| Mountain View Estates | AK2226509 | CWS | Palmer | 150 | Matanuska-Susitna Borough |
| Mountain Village Water System | AK2270150 | CWS | Mountain Village | 887 | Kusilvak Census Area |
| Msbsd Big Lake Elem #2 New | AK2223616 | NTNCWS | Wasilla | 365 | Matanuska-Susitna Borough |
| Msbsd Butte Elementary | AK2226460 | NTNCWS | Wasilla | 400 | Matanuska-Susitna Borough |
| Msbsd Career Center | AK2223023 | NTNCWS | Wasilla | 575 | Matanuska-Susitna Borough |
| Msbsd Colony Schools | AK2227474 | NTNCWS | Wasilla | 1,961 | Matanuska-Susitna Borough |
| Msbsd Cottonwood Creek Elem | AK2223658 | NTNCWS | Wasilla | 475 | Matanuska-Susitna Borough |
| Msbsd Day School | AK2220446 | NTNCWS | Wasilla | 125 | Matanuska-Susitna Borough |
| Msbsd Dena'Ina Elementary School | AK2220459 | NTNCWS | Wasilla | 400 | Matanuska-Susitna Borough |
| Msbsd Facilities Department | AK2220484 | NTNCWS | Wasilla | 37 | Matanuska-Susitna Borough |
| Msbsd Finger Lake Elementary | AK2227327 | NTNCWS | Wasilla | 445 | Matanuska-Susitna Borough |
| Msbsd Fronteras Charter School | AK2220470 | NTNCWS | Wasilla | 364 | Matanuska-Susitna Borough |
| Msbsd Glacier View School | AK2227092 | NTNCWS | Wasilla | 50 | Matanuska-Susitna Borough |
| Msbsd Houston High School | AK2224604 | NTNCWS | Wasilla | 381 | Matanuska-Susitna Borough |
| Msbsd Houston Middle School | AK2225975 | NTNCWS | Wasilla | 380 | Matanuska-Susitna Borough |
| Msbsd Knik-Goose Bay Elem. | AK2225165 | NTNCWS | Wasilla | 897 | Matanuska-Susitna Borough |
| Msbsd Mat-Su Central School | AK2226061 | NTNCWS | Wasilla | 480 | Matanuska-Susitna Borough |
| Msbsd Meadow Lakes Elementary | AK2225967 | NTNCWS | Wasilla | 515 | Matanuska-Susitna Borough |
| Msbsd Pioneer Peak | AK2227254 | NTNCWS | Wasilla | 475 | Matanuska-Susitna Borough |
| Msbsd Redington Jr/Sr High School | AK2220462 | NTNCWS | Wasilla | 550 | Matanuska-Susitna Borough |
| Msbsd Ron Larson School | AK2225968 | NTNCWS | Wasilla | 505 | Matanuska-Susitna Borough |
| Msbsd Shaw Elementary | AK2220230 | NTNCWS | Wasilla | 300 | Matanuska-Susitna Borough |
| Msbsd Snowshoe Elementary | AK2226452 | NTNCWS | Wasilla | 427 | Matanuska-Susitna Borough |
| Msbsd Susitna Valley High | AK2221012 | NTNCWS | Wasilla | 250 | Matanuska-Susitna Borough |
| Msbsd Sutton Elem School | AK2226884 | NTNCWS | Wasilla | 125 | Matanuska-Susitna Borough |
| Msbsd Tanaina Elementary | AK2224272 | NTNCWS | Wasilla | 439 | Matanuska-Susitna Borough |
| Msbsd Teeland Middle School | AK2225819 | NTNCWS | Wasilla | 748 | Matanuska-Susitna Borough |
| Msbsd Trapper Creek Elementary | AK2220723 | NTNCWS | Wasilla | 34 | Matanuska-Susitna Borough |
| Msbsd Twindley Bridges Charter School | AK2220085 | NTNCWS | Wasilla | 55 | Matanuska-Susitna Borough |
| Msbsd Willow Elementary | AK2224882 | NTNCWS | Wasilla | 250 | Matanuska-Susitna Borough |
| Mssca Services And Operations Center | AK2220436 | NTNCWS | Wasilla | 137 | Matanuska-Susitna Borough |
| Nana Construction, Llc | AK2220258 | NTNCWS | Big Lake | 30 | Matanuska-Susitna Borough |
| Nanwalek | AK2240464 | CWS | Nanwalek | 281 | Kenai Peninsula Borough |
| Napakiak Washeteria | AK2262301 | CWS | Napakiak | 336 | Bethel Census Area |
| Napaskiak West Water System | AK2260139 | CWS | Napaskiak | 200 | Bethel Census Area |
| Native Village Of Sleetmute | AK2271874 | CWS | Anchorage | 82 | Bethel Census Area |
| Near Point Knoll Subdivision | AK2218642 | CWS | Anchorage | 28 | Anchorage Municipality |
| Nelson Lagoon Water System | AK2260804 | CWS | Nelson Lagoon | 60 | Aleutians East Borough |
| Nelson Park | AK2310803 | CWS | Fairbanks | 80 | Fairbanks North Star Borough |
| Nenana Municipal Water | AK2390065 | CWS | Nenana | 486 | Yukon-Koyukuk Census Area |
| New Kasigluk Water System | AK2272016 | CWS | Kasigluk | 276 | Bethel Census Area |
| New Stuyahok Water System | AK2260367 | CWS | New Stuyahok | 566 | Dillingham Census Area |
| Newhalen Water System | AK2260066 | CWS | Newhalen | 80 | Lake and Peninsula Borough |
| Nightmute New Watering Point | AK2271721 | CWS | Nightmute | 243 | Bethel Census Area |
| Nikishka Bay | AK2241020 | CWS | Anchorage | 470 | Kenai Peninsula Borough |
| Nikiski Village Tc | AK2241088 | CWS | Nikiski | 150 | Kenai Peninsula Borough |
| Nikolaevsk Community Water System | AK2241648 | CWS | Nikolaevsk | 360 | Kenai Peninsula Borough |
| Nikolski Village | AK2260278 | CWS | Nikolski | 34 | Aleutians West Census Area |
| Nina Nicholson Subdivision | AK2263010 | CWS | Dillingham | 31 | Dillingham Census Area |
| Noaa / Nesdis Cda Station | AK2310421 | NTNCWS | Fairbanks | 40 | Fairbanks North Star Borough |
| Noatak Community Water System | AK2340159 | CWS | Noatak | 485 | Northwest Arctic Borough |
| Nondalton | AK2260260 | CWS | Nondalton | 205 | Lake and Peninsula Borough |
| Noorvik Water System | AK2340109 | CWS | Noorvik | 735 | Northwest Arctic Borough |
| North Fork Professional Bldgs | AK2225773 | NTNCWS | Wasilla | 200 | Matanuska-Susitna Borough |
| North Slope Borough Sa 10 | AK2331184 | NTNCWS | Deadhorse | 100 | North Slope Borough |
| North Star Behavioral Health System | AK2220086 | CWS | Anchorage | 55 | Matanuska-Susitna Borough |
| Northern Lights Terrace | AK2224214 | CWS | Big Lake | 168 | Matanuska-Susitna Borough |
| Northern Star (Pogo) Lower Camp Llc | AK2372643 | NTNCWS | Delta Junction | 450 | Southeast Fairbanks Census Area |
| Northern Star (Pogo) Permanent Camp Llc | AK2372685 | NTNCWS | Delta Junction | 250 | Southeast Fairbanks Census Area |
| Northgate Alaska | AK2220246 | NTNCWS | Wasilla | 150 | Matanuska-Susitna Borough |
| Northstar Center | AK2310942 | NTNCWS | Ester | 131 | Fairbanks North Star Borough |
| Northstar Development - Hilcorp | AK2370716 | NTNCWS | Anchorage | 94 | Anchorage Municipality |
| Northway Washeteria | AK2381422 | CWS | Northway | 223 | Southeast Fairbanks Census Area |
| Northwood Apartments | AK2220169 | CWS | Wasilla | 72 | Matanuska-Susitna Borough |
| Nsb Sa10 Hotel | AK2330119 | NTNCWS | Deadhorse | 222 | North Slope Borough |
| Nsbu - Anaktuvuk Pass | AK2350235 | CWS | Wainwright | 350 | North Slope Borough |
| Nsbu - Atqasuk | AK2320094 | CWS | Wainwright | 284 | North Slope Borough |
| Nsbu - Kaktovik (Barter Is) | AK2320248 | CWS | Wainwright | 292 | North Slope Borough |
| Nsbu - Nuiqsut | AK2320264 | CWS | Wainwright | 443 | North Slope Borough |
| Nsbu - Point Hope | AK2320426 | CWS | Wainwright | 881 | North Slope Borough |
| Nsbu - Point Lay | AK2320256 | CWS | Wainwright | 237 | North Slope Borough |
| Nsbu - Wainwright | AK2320086 | CWS | Wainwright | 600 | North Slope Borough |
| Nulato River Well | AK2360785 | CWS | Nulato | 245 | Yukon-Koyukuk Census Area |
| Nunam Iqua Water System | AK2270207 | CWS | Nunam Iqua | 213 | Bethel Census Area, Kusilvak Census Area |
| Nunapitchuk Water System | AK2260820 | CWS | Nunapitchuk | 496 | Bethel Census Area |
| Oasis Water - Mckinley View Div | AK2210697 | CWS | Anchorage | 130 | Anchorage Municipality |
| Offshore Systems, Dutch Harbor | AK2262505 | NTNCWS | Dutch Harbor | 535 | Aleutians West Census Area |
| Old Harbor | AK2250061 | CWS | Old Harbor | 246 | Kodiak Island Borough |
| Old Kasigluk - Akiuk | AK2272752 | CWS | Kasigluk | 240 | Bethel Census Area |
| Omega Building | AK2225995 | NTNCWS | Palmer | 137 | Matanuska-Susitna Borough |
| Oooguruk Offshore Production & Drilling | AK2330024 | NTNCWS | Anchorage | 95 | North Slope Borough |
| Ouzinkie Water System | AK2250053 | CWS | Ouzinkike | 144 | Kodiak Island Borough |
| Ow Dimond Estates Trailer Court | AK2211075 | CWS | Anchorage | 1,395 | Anchorage Municipality |
| Palmer Correctional Center | AK2226240 | CWS | Palmer | 90 | Matanuska-Susitna Borough |
| Palmer Lifeways Daycare | AK2226055 | NTNCWS | Palmer | 56 | Matanuska-Susitna Borough |
| Palmer Seventh Day Adventist Church | AK2226039 | NTNCWS | Palmer | 307 | Matanuska-Susitna Borough |
| Pelican Utilities | AK2130122 | CWS | Pelican | 230 | Hoonah-Angoon Census Area |
| Penland Park Mhp | AK2210419 | CWS | Anchorage | 993 | Anchorage Municipality |
| Perryville Water System | AK2260359 | CWS | Perryville | 88 | Lake and Peninsula Borough |
| Peters Creek Manor Apts | AK2213768 | CWS | Chugiak | 48 | Anchorage Municipality |
| Peters Creek Terrace | AK2211473 | CWS | Anchorage | 70 | Anchorage Municipality |
| Peters Creek Terrace Apts. | AK2213530 | CWS | Chugiak | 48 | Anchorage Municipality |
| Petersburg | AK2130148 | CWS | Petersburg | 3,218 | Petersburg Borough |
| Pilot Station Water System | AK2260163 | CWS | Pilot Station | 580 | Kusilvak Census Area |
| Pioneer Meadows Subdivision | AK2227734 | CWS | Palmer | 435 | Matanuska-Susitna Borough |
| Pioneer Wells | AK2310714 | CWS | Fairbanks | 600 | Fairbanks North Star Borough |
| Pioneer Wells At Fox | AK2312156 | CWS | Fairbanks | 880 | Fairbanks North Star Borough |
| Pitka'S Point Piped Water System | AK2272750 | CWS | Pitka'S Point | 109 | Kusilvak Census Area |
| Platinum City Water System | AK2271059 | CWS | Platinum | 51 | Bethel Census Area |
| Pleasant Valley Watering Point | AK2315659 | CWS | Two Rivers | 35 | Fairbanks North Star Borough |
| Point Higgins Elementary School | AK2121076 | NTNCWS | Ketchikan | 300 | Ketchikan Gateway Borough |
| Port Alexander Pws | AK2130156 | CWS | Port Alexander | 95 | Prince of Wales-Hyder Census Area, Sitka City and Borough |
| Port Graham | AK2240498 | CWS | Port Graham | 180 | Kenai Peninsula Borough |
| Port Lions | AK2250045 | CWS | Port Lions | 175 | Kodiak Island Borough |
| Port Protection | AK2121123 | CWS | Ketchikan | 60 | Ketchikan Gateway Borough, Prince of Wales-Hyder Census Area |
| Potter Creek Water Company | AK2214730 | CWS | Anchorage | 375 | Anchorage Municipality |
| Prudhoe Bay Hotel | AK2332033 | NTNCWS | Deadhorse | 260 | North Slope Borough |
| Pt Mackenzie Correctional Farm | AK2225281 | CWS | Wasilla | 101 | Matanuska-Susitna Borough |
| Ptarmigan Heights Utilities | AK2310934 | CWS | Fairbanks | 53 | Fairbanks North Star Borough |
| Qiruk Camp - Pt Op Center | AK2330079 | NTNCWS | Anchorage | 200 | North Slope Borough |
| Quality Services, Llc Water Delivery | AK2340735 | CWS | Nome | 300 | Nome Census Area |
| Quickdraw H2O | AK2249203 | CWS | Homer | 100 | Kenai Peninsula Borough |
| Quiet Circle Apartments | AK2224476 | CWS | Wasilla | 90 | Matanuska-Susitna Borough |
| Quiet View Apts | AK2217576 | CWS | Anchorage | 96 | Anchorage Municipality |
| Quinhagak Water System | AK2271041 | CWS | Quinhagak | 724 | Bethel Census Area |
| Rainbow Valley Mhp | AK2310879 | CWS | Fairbanks | 105 | Fairbanks North Star Borough |
| Rampart Washeteria | AK2360816 | CWS | Rampart | 88 | Yukon-Koyukuk Census Area |
| Rangeview Tc | AK2210435 | CWS | Anchorage | 795 | Anchorage Municipality |
| Rays Child Care Learning | AK2227301 | NTNCWS | Palmer | 80 | Matanuska-Susitna Borough |
| Razdolna Elementary School | AK2244222 | NTNCWS | Homer | 50 | Kenai Peninsula Borough |
| River Bend Subdivision | AK2226035 | CWS | Wasilla | 320 | Matanuska-Susitna Borough |
| Rivers Edge Condominium | AK2218652 | CWS | Anchorage | 168 | Anchorage Municipality |
| Riviera Terrace Tc | AK2210451 | CWS | Encino | 435 | Anchorage Municipality |
| Romig Park S/D | AK2211114 | CWS | Anchorage | 493 | Anchorage Municipality |
| Ruby Water System | AK2360866 | CWS | Ruby | 215 | Yukon-Koyukuk Census Area |
| Russian Mission Water System | AK2270168 | CWS | Bethel | 340 | Kusilvak Census Area |
| S & S Center | AK2244719 | NTNCWS | Soldotna | 54 | Kenai Peninsula Borough |
| Sacred Heart Parish | AK2222806 | NTNCWS | Wasilla | 210 | Matanuska-Susitna Borough |
| Saint Elizabeth Ann Seton Church | AK2214099 | NTNCWS | Anchorage | 382 | Anchorage Municipality |
| Saint George Water System | AK2260074 | CWS | Saint George | 65 | Aleutians West Census Area |
| Saint Paul Water System | AK2260286 | CWS | Saint Paul | 380 | Aleutians West Census Area |
| Salcha Community Watering Point | AK2312415 | CWS | Salcha | 508 | Fairbanks North Star Borough |
| Salmon Creek Trailer Court | AK2241062 | CWS | Soldotna | 125 | Kenai Peninsula Borough |
| Salmon Roe | AK2261460 | CWS | Dillingham | 31 | Dillingham Census Area |
| Sand Lake Services | AK2210485 | CWS | Big Lake | 465 | Anchorage Municipality |
| Sand Point Water System | AK2260294 | CWS | Sandpoint | 830 | Aleutians East Borough |
| Savoonga Water Supply | AK2340183 | CWS | Savoonga | 802 | Nome Census Area |
| Saxman | AK2120127 | CWS | Ketchikan | 450 | Ketchikan Gateway Borough |
| Scammon Bay Water System | AK2270184 | CWS | Scammon Bay | 637 | Kusilvak Census Area |
| Scotwood Estates Water System | AK2223145 | CWS | Wasilla | 90 | Matanuska-Susitna Borough |
| Selawik Safewater Facility | AK2340379 | CWS | Selawik | 846 | Northwest Arctic Borough |
| Seldovia Water System | AK2240707 | CWS | Seldovia | 418 | Kenai Peninsula Borough |
| Set Free Alaska Bogard | AK2220220 | NTNCWS | Wasilla | 68 | Matanuska-Susitna Borough |
| Set Free Alaska Snodgrass | AK2220483 | NTNCWS | Wasilla | 47 | Matanuska-Susitna Borough |
| Settlers Bay Condos | AK2223179 | CWS | Palmer | 80 | Matanuska-Susitna Borough |
| Seward Marine Industrial Cent | AK2244159 | CWS | Seward | 545 | Kenai Peninsula Borough |
| Shageluk Water System | AK2280040 | CWS | Shageluk | 60 | Yukon-Koyukuk Census Area |
| Shaktoolik Water System | AK2340442 | CWS | Shaktoolik | 270 | Nome Census Area |
| Sheena May Estates | AK2224337 | CWS | Wasilla | 74 | Matanuska-Susitna Borough |
| Shishmaref Water System | AK2340484 | CWS | Shishmaref | 572 | Nome Census Area |
| Shooting Star Circle | AK2220095 | CWS | Wasilla | 52 | Matanuska-Susitna Borough |
| Shores Of Ancient Tree | AK2224256 | CWS | Wasilla | 170 | Matanuska-Susitna Borough |
| Shungnak Water System | AK2340361 | CWS | Shungnak | 299 | Northwest Arctic Borough |
| Silver Bay Seafoods False Pass | AK2263076 | NTNCWS | False Pass | 470 | Aleutians East Borough |
| Silver Creek Springs Sd | AK2220070 | CWS | Palmer | 239 | Matanuska-Susitna Borough |
| Sky Manor Wellhouse | AK2218807 | CWS | Anchorage | 36 | Anchorage Municipality |
| Sky Ranch Estates #1 Upper Well | AK2211813 | CWS | Anchorage | 75 | Anchorage Municipality |
| Sky Ranch Estates #2 Lower Well | AK2212916 | CWS | Anchorage | 72 | Anchorage Municipality |
| Snowshoe Acres Llc | AK2220465 | CWS | Wasilla | 32 | Matanuska-Susitna Borough |
| Snowshoe Water System | AK2223315 | CWS | Anchorage | 180 | Matanuska-Susitna Borough |
| South Naknek Water System | AK2260333 | CWS | South Naknek | 66 | Bristol Bay Borough |
| South Park Estate Tc | AK2211091 | CWS | Anchorage | 175 | Anchorage Municipality |
| South Port Condominiums | AK2220400 | CWS | Anchorage | 183 | Matanuska-Susitna Borough |
| South Tongass Water Utility | AK2121510 | CWS | Ketchikan | 975 | Ketchikan Gateway Borough |
| Southeast Alaska Logging | AK2250427 | NTNCWS | Kodiak | 45 | Kodiak Island Borough |
| Southwood Manor Tc | AK2211677 | CWS | Anchorage | 1,005 | Anchorage Municipality |
| Spenard Builders Supply Wasilla | AK2221410 | NTNCWS | Wasilla | 63 | Matanuska-Susitna Borough |
| Spring Forest Homeowners Assn. | AK2213564 | CWS | Anchorage | 94 | Anchorage Municipality |
| St. Marys Water System | AK2270176 | CWS | Saint Marys | 548 | Kusilvak Census Area |
| St. Michael Water System | AK2340337 | CWS | St. Michael | 495 | Nome Census Area |
| Stebbins City Water Supply | AK2340492 | CWS | Stebbins | 590 | Nome Census Area |
| Sterling Moose River Manor | AK2249099 | CWS | Sterling | 33 | Kenai Peninsula Borough |
| Stevens Village Water System | AK2360442 | CWS | Stevens Village | 28 | Yukon-Koyukuk Census Area |
| Sun Valley Heights North | AK2212005 | CWS | Anchorage | 51 | Anchorage Municipality, Kenai Peninsula Borough |
| Sun Valley Heights South | AK2213962 | CWS | Anchorage | 34 | Anchorage Municipality |
| Sunshine Community Health Talkeetna | AK2220056 | NTNCWS | Talkeetna | 120 | Matanuska-Susitna Borough |
| Sunshine Station Child Care Center | AK2220394 | NTNCWS | Talkeetna | 47 | Matanuska-Susitna Borough |
| Swiss Aire S/D | AK2211122 | CWS | Anchorage | 48 | Anchorage Municipality |
| Swrsd Aleknagik Northshore | AK2261185 | NTNCWS | Dillingham | 38 | Dillingham Census Area |
| Swrsd Koliganek School | AK2260041 | NTNCWS | Dillingham | 72 | Dillingham Census Area |
| Swrsd Manokotak Heights School | AK2263039 | NTNCWS | Dillingham | 177 | Dillingham Census Area |
| Swrsd Togiak K12 School | AK2263045 | NTNCWS | Dillingham | 280 | Dillingham Census Area |
| Swrsd Twin Hills School | AK2263016 | NTNCWS | Dillingham | 38 | Dillingham Census Area |
| Takotna Water System | AK2280163 | CWS | Takotna | 70 | Yukon-Koyukuk Census Area |
| Talkeetna Water System | AK2225032 | CWS | Palmer | 1,850 | Matanuska-Susitna Borough |
| Tanacross Water System | AK2380531 | CWS | Tanacross | 108 | Southeast Fairbanks Census Area |
| Tatitlek Water System | AK2291130 | CWS | Tatitlek | 95 | Chugach Census Area |
| Tcc Upper Tanana Health Clinic - Tok | AK2382101 | NTNCWS | Fairbanks | 65 | Southeast Fairbanks Census Area |
| Teck Alaska Red Dog Conpac | AK2340654 | NTNCWS | Anchorage | 291 | Northwest Arctic Borough |
| Teck Alaska Red Dog Mine Pac | AK2340670 | NTNCWS | Anchorage | 517 | Northwest Arctic Borough |
| Teck Red Dog Port Facility | AK2340646 | NTNCWS | Anchorage | 162 | Northwest Arctic Borough |
| Terrace On The Lake | AK2220443 | CWS | Anchorage | 96 | Matanuska-Susitna Borough |
| Tetlin Utility System | AK2380638 | CWS | Tok | 150 | Southeast Fairbanks Census Area |
| Tezdlende Estates And Watering Point | AK2291279 | CWS | Glennallen | 75 | Copper River Census Area |
| The Crossing @ Birchwood | AK2214219 | NTNCWS | Chugiak | 466 | Anchorage Municipality |
| The Water Service | AK2320230 | CWS | Barrow | 638 | North Slope Borough |
| Thorne Bay, City Of | AK2120216 | CWS | Thorne Bay | 470 | Prince of Wales-Hyder Census Area |
| Three Bears Corporate Office | AK2220496 | NTNCWS | Wasilla | 50 | Matanuska-Susitna Borough |
| Three Bears Store - Birchwood | AK2218813 | NTNCWS | Wasilla | 70 | Anchorage Municipality |
| Three Bears Store 60 - 4 Corners | AK2220118 | NTNCWS | Wasilla | 590 | Matanuska-Susitna Borough |
| Three Bears Store 80 - Pittman | AK2224806 | NTNCWS | Wasilla | 484 | Matanuska-Susitna Borough |
| Three Bears Store 85 - Kgb | AK2220353 | NTNCWS | Anchorage | 388 | Matanuska-Susitna Borough |
| Timber Ridge Condominiums | AK2220159 | CWS | Palmer | 60 | Matanuska-Susitna Borough |
| Togiak Water System | AK2260325 | CWS | Togiak | 910 | Dillingham Census Area |
| Toksook Bay Water System | AK2270215 | CWS | Bethel | 661 | Bethel Census Area |
| Too'Gha Inc - In Tanana | AK2360109 | CWS | Tanana | 271 | Yukon-Koyukuk Census Area |
| Totem Trailer Town Tc | AK2210574 | CWS | Anchorage | 480 | Anchorage Municipality |
| Trails End Mhp | AK2211130 | CWS | Anchorage | 100 | Anchorage Municipality |
| Trapper Creek Watering Point | AK2220495 | CWS | Trapper Creek | 500 | Matanuska-Susitna Borough |
| Trident Seafoods Corp. Akutan | AK2261193 | NTNCWS | Seattle | 1,400 | Aleutians East Borough |
| Trinity Lutheran Church | AK2224345 | NTNCWS | Palmer | 269 | Matanuska-Susitna Borough |
| Troll Knoll S/D | AK2210778 | CWS | Chugiak | 99 | Anchorage Municipality |
| Tudor East Apartments | AK2215558 | CWS | Anchorage | 78 | Anchorage Municipality |
| Tuluksak Water System | AK2270223 | CWS | Tuluksak | 373 | Bethel Census Area |
| Tuntutuliak Washeteria And Watering Pt | AK2271211 | CWS | Tuntutuliak | 350 | Bethel Census Area |
| Twin Hills Water System | AK2260032 | CWS | Twin Hills | 87 | Dillingham Census Area |
| Twin Peaks | AK2227539 | CWS | Palmer | 37 | Matanuska-Susitna Borough |
| Twin Springs Water | AK2312813 | CWS | Fairbanks | 310 | Fairbanks North Star Borough |
| Tyonek Water System | AK2240472 | CWS | Tyonek | 206 | Kenai Peninsula Borough |
| Unalakleet City Water Supply | AK2340387 | CWS | Unalakleet | 757 | Nome Census Area |
| Unified Alaskan Utilities Midtown Est | AK2227204 | CWS | Anchorage | 495 | Matanuska-Susitna Borough |
| Unified Alaskan Utilities Moorehand Div. | AK2211229 | CWS | Anchorage | 350 | Anchorage Municipality |
| Unified Alaskan Utilities Settlers Bay | AK2221834 | CWS | Anchorage | 2,733 | Matanuska-Susitna Borough |
| Unified Alaskan Utilities Sherwood Estat | AK2224078 | CWS | Anchorage | 147 | Matanuska-Susitna Borough |
| Unified Alaskan Utilities-Field Of View | AK2220135 | CWS | Anchorage | 135 | Matanuska-Susitna Borough |
| Unified Alaskan Utilities-Homestead Div. | AK2211431 | CWS | Anchorage | 708 | Anchorage Municipality |
| Us Postal Service Wasilla Carrier Annex | AK2225683 | NTNCWS | Wasilla | 33 | Matanuska-Susitna Borough |
| Usaf Eareckson | AK2260511 | NTNCWS | Jber | 120 | Aleutians West Census Area |
| Usaf Elmendorf- Munition Insp | AK2218478 | NTNCWS | Jber | 30 | Anchorage Municipality |
| Uscg Station Kodiak | AK2250126 | CWS | Kodiak | 3,092 | Kodiak Island Borough |
| Usfs Kenai Lake Work Center | AK2249966 | NTNCWS | Seward | 162 | Kenai Peninsula Borough |
| Usfs Starrigavan Recreational Area | AK2131148 | NTNCWS | Sitka | 102 | Sitka City and Borough |
| Usibelli Coal Mine | AK2390984 | NTNCWS | Healy | 100 | Denali Borough |
| Utdc Building | AK2380078 | NTNCWS | Northway | 55 | Southeast Fairbanks Census Area |
| Utopia Meadows Sd | AK2220094 | CWS | Anchorage | 232 | Matanuska-Susitna Borough |
| Valdez Robe River S/D | AK2291211 | CWS | Valdez | 464 | Chugach Census Area |
| Valdez Southcentral | AK2291229 | CWS | Valdez | 675 | Chugach Census Area |
| Vallenar View Mobile Home Park | AK2120012 | CWS | Anchorage | 225 | Ketchikan Gateway Borough |
| Valley Business Center | AK2220038 | NTNCWS | Wasilla | 57 | Matanuska-Susitna Borough |
| Valley Utilities Llc | AK2220408 | CWS | Wasilla | 1,590 | Matanuska-Susitna Borough |
| Valley View Plaza | AK2220524 | NTNCWS | Wasilla | 75 | Matanuska-Susitna Borough |
| Valley View Tower | AK2220507 | NTNCWS | Wasilla | 85 | Matanuska-Susitna Borough |
| Valley Water Company | AK2310926 | CWS | Fairbanks | 1,575 | Fairbanks North Star Borough |
| Venetie Water System | AK2300248 | CWS | Venetie | 181 | Yukon-Koyukuk Census Area |
| Victoria Estates | AK2224167 | CWS | Wasilla | 912 | Matanuska-Susitna Borough |
| Victory Bible Camp Spring | AK2226567 | CWS | Sutton | 110 | Matanuska-Susitna Borough |
| View Pointe At The Ranch | AK2220485 | CWS | Palmer | 155 | Matanuska-Susitna Borough |
| Violet Circle Water Company | AK2226428 | CWS | Wasilla | 35 | Matanuska-Susitna Borough |
| Voa Arch Replacement Facility | AK2218757 | NTNCWS | Eagle River | 58 | Anchorage Municipality |
| Voznesenka Village | AK2244955 | CWS | Voznesenka | 300 | Kenai Peninsula Borough |
| Wal-Mart | AK2121485 | NTNCWS | South Windsor | 110 | Ketchikan Gateway Borough |
| Wales Water System | AK2340191 | CWS | Wales | 173 | Nome Census Area |
| Walter G Pippel Sd | AK2215524 | CWS | Chugiak | 75 | Anchorage Municipality |
| Wasilla Creek Commons | AK2220170 | CWS | Wasilla | 276 | Matanuska-Susitna Borough |
| Wasilla Lacy Laine Sd | AK2224109 | CWS | Wasilla | 75 | Matanuska-Susitna Borough |
| Wasilla Lake Church Of The Nazarene | AK2220163 | NTNCWS | Palmer | 188 | Matanuska-Susitna Borough |
| Wasilla West Subdivision | AK2221208 | CWS | Wasilla | 200 | Matanuska-Susitna Borough |
| Water Haul Vehicle Cpai – Wtk01 | AK2330159 | NTNCWS | Anchorage | 620 | North Slope Borough |
| Water Haul Vehicle Cpai – Wtk03 | AK2330160 | NTNCWS | Anchorage | 620 | North Slope Borough |
| Water Haul Vehicle Sa10-19526 | AK2330157 | NTNCWS | Deadhorse | 450 | North Slope Borough |
| Wellingfield West Div I Ii | AK2224117 | CWS | Wasilla | 168 | Matanuska-Susitna Borough |
| Westwood Water Company Inc | AK2225511 | CWS | Big Lake | 180 | Matanuska-Susitna Borough |
| White Birch Apartments | AK2313233 | CWS | North Pole | 72 | Fairbanks North Star Borough |
| White Mountain Water System | AK2340507 | CWS | White Mountain | 210 | Nome Census Area |
| Whitestone Farms Tabernacle | AK2372075 | CWS | Delta Junction | 210 | Southeast Fairbanks Census Area |
| Whitestone Farms Training Cntr / School | AK2372198 | NTNCWS | Delta Junction | 112 | Southeast Fairbanks Census Area |
| Whittier Water System | AK2211952 | CWS | Whittier | 650 | Chugach Census Area |
| Wilderness Estates | AK2220139 | CWS | Anchorage | 110 | Matanuska-Susitna Borough |
| Wildrose Circle | AK2227149 | CWS | Wasilla | 30 | Matanuska-Susitna Borough |
| Wildwood Homes Llc | AK2310853 | CWS | Fairbanks | 114 | Fairbanks North Star Borough |
| Willow Heights Condos | AK2220138 | CWS | Anchorage | 50 | Matanuska-Susitna Borough |
| Willow Tree Apartments | AK2270469 | CWS | Bethel | 224 | Bethel Census Area |
| Willowbrook North | AK2249434 | CWS | Kenai | 150 | Kenai Peninsula Borough |
| Winter Rose Multifamily Housing | AK2220515 | CWS | Wasilla | 100 | Matanuska-Susitna Borough |
| Wolf Eye Center | AK2220429 | NTNCWS | Wasilla | 77 | Matanuska-Susitna Borough |
| Worley Water Truck #30030 | AK2330152 | NTNCWS | Anchorage | 770 | North Slope Borough |
| Worley Water Truck #30031 | AK2330153 | NTNCWS | Anchorage | 770 | North Slope Borough |
| Worley Water Truck #30032 | AK2330155 | NTNCWS | Anchorage | 770 | North Slope Borough |
| Worley Water Truck #30033 | AK2330156 | NTNCWS | Anchorage | 770 | North Slope Borough |
| Wrangell | AK2120143 | CWS | Wrangell | 2,300 | Wrangell City and Borough |
| Yakutat Pws | AK2130172 | CWS | Yakutat | 740 | Yakutat City and Borough |
| Yksd - Allakaket School | AK2300206 | NTNCWS | Fairbanks | 52 | Yukon-Koyukuk Census Area |
| Yksd - Merreline Kangas / Ruby | AK2360248 | NTNCWS | Ruby | 40 | Yukon-Koyukuk Census Area |
| Yuyan Subdivision | AK2220461 | CWS | Wasilla | 25 | Matanuska-Susitna Borough |