We found 231 public water systems in Trinity county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Weaverville C.s.d. | County of Trinity | 3,554 | 0 | 1 |
| Prunedale Central Csa No.74 | Central Pruneda | 3,031 | 0 | 0 |
| Bill Saulsberry, Pres | County of Trinity | 2,000 | 0 | 0 |
| Trinity Co. W.w. Dist #1 | County of Trinity | 1,775 | 0 | 3 |
| California Wtr Serv Co | Rancho Del Mont | 1,477 | 0 | 0 |
| Trinity Center M.w.c. . | County of Trinity | 729 | 0 | 3 |
| Trinity Lake Resorts & Marina | County of Trinity | 703 | 0 | 3 |
| Little Bear Water Company | County of Trinity | 616 | 0 | 0 |
| Trinity Village Mutual Water | County of Trinity | 604 | 0 | 6 |
| Lewiston Park Mwc | County of Trinity | 551 | 0 | 2 |
| Caltrans-salyer Safety Rest Stop | County of Trinity | 550 | 0 | 1 |
| Ambler Park Water Supply | County of Trinity | 500 | 0 | 0 |
| Clark System | County of Trinity | 450 | 0 | 3 |
| Gonzales High School | County of Trinity | 450 | 0 | 0 |
| Hayward Flat Campground | County of Trinity | 440 | 0 | 0 |
| Tannery Gulch Campground | County of Trinity | 410 | 0 | 2 |
| Beesinger Water System | County of Trinity | 410 | 0 | 0 |
| Ruth Lake C S D | County of Trinity | 400 | 0 | 0 |
| Alpine View Campground | County of Trinity | 350 | 0 | 0 |
| Trinity Village Water Co | County of Trinity | 350 | 0 | 0 |
| Ackerman Campground | County of Trinity | 330 | 0 | 0 |
| Fawn & Stoney Campground | County of Trinity | 327 | 0 | 0 |
| Trinity Alps Resort | County of Trinity | 300 | 0 | 1 |
| Metz Road Well | County of Trinity | 300 | 0 | 0 |
| Kokanee-stoney Point Campgrd | County of Trinity | 295 | 0 | 0 |
| Hayden Flat Campground F | County of Trinity | 280 | 0 | 1 |
| Fish Tail Inn | County of Trinity | 274 | 0 | 8 |
| Clyde W Froellich | County of Trinity | 260 | 0 | 0 |
| Pine Cove Rv Park | County of Trinity | 255 | 0 | 0 |
| Ruth Lake Recreation Area | County of Trinity | 252 | 0 | 1 |
| Alta Vista Wildwood Water Co | County of Trinity | 250 | 0 | 0 |
| Arden Dee Potter | County of Trinity | 240 | 0 | 0 |
| Pinewood Cove Resort | County of Trinity | 230 | 0 | 0 |
| Alpine View Campground | County of Trinity | 215 | 0 | 0 |
| Flying Aa Ranch | County of Trinity | 212 | 0 | 0 |
| Flying Double A Ranch | County of Trinity | 212 | 0 | 0 |
| Ruth Lake Marina | County of Trinity | 202 | 0 | 0 |
| Salyer Mutual Wc (formerly Riverview Ac) | County of Trinity | 201 | 0 | 31 |
| Junction City Park | County of Trinity | 200 | 0 | 0 |
| San Vincente School | County of Trinity | 200 | 0 | 0 |
| Wally & Bunnie Gordon | County of Trinity | 200 | 0 | 0 |
| Robert Zoholi | County of Trinity | 200 | 0 | 0 |
| Deerlick Springs | County of Trinity | 200 | 0 | 0 |
| Jolon Store | County of Trinity | 200 | 0 | 0 |
| Fred's Camp | County of Trinity | 200 | 0 | 0 |
| Cedar Stock Resort | County of Trinity | 192 | 0 | 0 |
| Bridge Camp | County of Trinity | 190 | 0 | 1 |
| Bar 717 Ranch | County of Trinity | 180 | 0 | 5 |
| Trinity River Lodge | County of Trinity | 175 | 0 | 0 |
| Harden Farms | County of Trinity | 170 | 0 | 0 |
| Ruth Lake C S D | County of Trinity | 168 | 0 | 0 |
| Meyer Tomatoes | County of Trinity | 160 | 0 | 0 |
| Del Loma Rv Park & Cg | County of Trinity | 157 | 0 | 3 |
| Lewiston Community Services District | County of Trinity | 150 | 0 | 35 |
| So Trinity Unified School Dist. | County of Trinity | 150 | 0 | 3 |
| Fir Cove & Bailey Canyon | County of Trinity | 150 | 0 | 2 |
| Cal Fire-trinity River Conservation Camp | County of Trinity | 150 | 0 | 4 |
| Trinity Center Mutal | County of Trinity | 150 | 0 | 0 |
| Los Coches Roadside Restaurant | County of Trinity | 150 | 0 | 0 |
| Marina Del Mar Mhp Ws*closed* | County of Trinity | 150 | 0 | 0 |
| Jensen's Mobile Home Park | County of Trinity | 150 | 0 | 0 |
| Wilma Smith | County of Trinity | 129 | 0 | 0 |
| Burnt Ranch School | County of Trinity | 125 | 0 | 1 |
| Burnt Ranch Estates | County of Trinity | 115 | 0 | 0 |
| Orville Brown & B.sulsana | County of Trinity | 108 | 0 | 0 |
| Journey S End Resort | County of Trinity | 106 | 0 | 0 |
| Jackass Springs Campground | County of Trinity | 105 | 0 | 0 |
| Ackerman Campground | County of Trinity | 100 | 0 | 0 |
| Junction City School | Junction City | 100 | 0 | 0 |
| Marie Mills, Robt Woods | County of Trinity | 100 | 0 | 0 |
| Richard Mills | County of Trinity | 100 | 0 | 0 |
| Junction City Park | County of Trinity | 100 | 0 | 0 |
| Douglas City Water System | County of Trinity | 100 | 0 | 0 |
| Jim Waggoner | County of Trinity | 100 | 0 | 0 |
| Jean Eli | County of Trinity | 100 | 0 | 0 |
| Gary Carpenter | County of Trinity | 100 | 0 | 0 |
| Jim & Linda Foley | County of Trinity | 100 | 0 | 0 |
| Robert A Baur | County of Trinity | 100 | 0 | 0 |
| The Gables | County of Trinity | 100 | 0 | 0 |
| Mr Vanderwall | County of Trinity | 100 | 0 | 0 |
| Bud Fine Water System | County of Trinity | 100 | 0 | 0 |
| Jeff Talbot | County of Trinity | 100 | 0 | 0 |
| Del Loma Mutual Water System | County of Trinity | 100 | 0 | 0 |
| Chagdud Gonpa Foundation | County of Trinity | 100 | 0 | 0 |
| Mercado Camp Water System | County of Trinity | 100 | 0 | 0 |
| Waggoner's Water System | County of Trinity | 100 | 0 | 0 |
| Limekiln Creek Campground | County of Trinity | 100 | 0 | 0 |
| Covington Mill Mwc-division B | County of Trinity | 99 | 0 | 0 |
| Csp California State Parks | Nc Res Julia Pf | 95 | 0 | 0 |
| Mary Smith Campground | County of Trinity | 90 | 0 | 0 |
| Tom Karshneski | County of Trinity | 90 | 0 | 0 |
| Clyde Hall | County of Trinity | 90 | 0 | 0 |
| Mary Smith Campground | County of Trinity | 90 | 0 | 0 |
| Stone Container Corporation | County of Trinity | 90 | 0 | 0 |
| Old Stage Road Water System 10 | County of Trinity | 90 | 0 | 0 |
| Edward Pozzi | County of Trinity | 90 | 0 | 0 |
| Nielsen Trailer Park | County of Trinity | 90 | 0 | 0 |
| Admiral Farms | County of Trinity | 90 | 0 | 0 |
| Salyer Heights Water Supply, I | County of Trinity | 89 | 0 | 0 |
| Hal Biggers, Prin | County of Trinity | 86 | 0 | 0 |
| Victorian Restaurant | County of Trinity | 85 | 0 | 0 |
| Salyer Heights W.s., Inc | County of Trinity | 82 | 0 | 0 |
| Rush Creek Mutual Water System | County of Trinity | 80 | 0 | 0 |
| Harold Soule | County of Trinity | 80 | 0 | 0 |
| Trinity Alps Marina | County of Trinity | 75 | 0 | 0 |
| Mad River Compound - Usfs | County of Trinity | 75 | 0 | 0 |
| Ken Collins | County of Trinity | 75 | 0 | 0 |
| C I Blackburn | County of Trinity | 75 | 0 | 0 |
| Ruth Lake C S D | County of Trinity | 70 | 0 | 0 |
| Mad River Campground | County of Trinity | 70 | 0 | 0 |
| Lakeview Terrace Resort | County of Trinity | 69 | 0 | 0 |
| Vierra Vyn Knolls Wtr Co | County of Trinity | 66 | 0 | 0 |
| Redding Odd Fellows Camp | County of Trinity | 65 | 0 | 0 |
| Cedar Flat Resort | County of Trinity | 60 | 0 | 0 |
| Recreation Plus | County of Trinity | 60 | 0 | 0 |
| Mario Davila | County of Trinity | 60 | 0 | 0 |
| Ken Caldwell | County of Trinity | 60 | 0 | 0 |
| Bucktail Mutual Water Co | County of Trinity | 59 | 0 | 0 |
| Covington Mill - A | County of Trinity | 55 | 0 | 0 |
| Philpot Campground | County of Trinity | 55 | 0 | 0 |
| Bucktail Mutual Water Company | County of Trinity | 51 | 0 | 0 |
| Treasure Creek Woods Mwc | County of Trinity | 50 | 0 | 0 |
| Stan Plowman | County of Trinity | 50 | 0 | 0 |
| Mike Miller | County of Trinity | 50 | 0 | 0 |
| Mad River General Store & Mhp | County of Trinity | 50 | 0 | 0 |
| Margaret Szymanski | County of Trinity | 50 | 0 | 0 |
| Jay & Patricia Garner | County of Trinity | 50 | 0 | 0 |
| George Holcomb | County of Trinity | 50 | 0 | 0 |
| San Antonio Mission | County of Trinity | 50 | 0 | 0 |
| Coffee Creek Ranch | County of Trinity | 50 | 0 | 0 |
| Coffee Creek Country Store | County of Trinity | 50 | 0 | 0 |
| Trinity Oaks Cafe | County of Trinity | 50 | 0 | 0 |
| Richfield Oil Station | County of Trinity | 50 | 0 | 0 |
| Ruth Mutual Water Company | County of Trinity | 50 | 0 | 0 |
| Mad River Store | County of Trinity | 50 | 0 | 0 |
| Six Rivers Lodge And Resort | County of Trinity | 50 | 0 | 0 |
| Parson Court Supply | County of Trinity | 50 | 0 | 0 |
| Lloyd Wallace | County of Trinity | 48 | 0 | 0 |
| Trinity Knolls Mutual Water Company | County of Trinity | 45 | 0 | 0 |
| Mark Hartman | County of Trinity | 45 | 0 | 0 |
| Camp Kokanee | County of Trinity | 45 | 0 | 0 |
| Roger W Cornelius | County of Trinity | 45 | 0 | 0 |
| Big Flat Mutual Water Company | County of Trinity | 45 | 0 | 0 |
| Critter Creek Trailer Park | County of Trinity | 45 | 0 | 0 |
| Trinity Dam Trailer Park | County of Trinity | 40 | 0 | 0 |
| Earl Myers | County of Trinity | 40 | 0 | 0 |
| Fran Lethbridge | County of Trinity | 40 | 0 | 0 |
| Britton & Longmore | County of Trinity | 40 | 0 | 0 |
| Bill Haynes | County of Trinity | 40 | 0 | 0 |
| George Verhulst | County of Trinity | 40 | 0 | 0 |
| Bonanza King Resort | County of Trinity | 40 | 0 | 0 |
| Garner's Trinity Wilderness | County of Trinity | 40 | 0 | 0 |
| Old Stage Road Water System - | County of Trinity | 40 | 0 | 0 |
| Paradise Road Water System #10 | County of Trinity | 39 | 0 | 0 |
| Indian Creek Trailer Park | County of Trinity | 35 | 0 | 0 |
| Mountainair Subdivision | County of Trinity | 35 | 0 | 0 |
| San Antonio School District | County of Trinity | 35 | 0 | 0 |
| Mark Greenleaf | County of Trinity | 35 | 0 | 0 |
| Salinas Lettuce Coop | County of Trinity | 35 | 0 | 0 |
| Hyampom Mill Camp | County of Trinity | 35 | 0 | 0 |
| Cox Bar School | County of Trinity | 35 | 0 | 0 |
| Bud Fine Mwc | County of Trinity | 32 | 0 | 0 |
| Douglas City Trailer Park | County of Trinity | 32 | 0 | 0 |
| Russel & Zelda Crouch | County of Trinity | 31 | 0 | 0 |
| Journey's End Resort | County of Trinity | 30 | 0 | 0 |
| Barlow Campground | County of Trinity | 30 | 0 | 0 |
| Union Station | County of Trinity | 30 | 0 | 0 |
| Inter-harvest Incorporated | County of Trinity | 30 | 0 | 0 |
| Corn Nuts Co | County of Trinity | 30 | 0 | 0 |
| YOUTH SCIENCE CENTER | County of Trinity | 30 | 0 | 0 |
| Seymour's Mutual Water System | County of Trinity | 26 | 0 | 0 |
| Peanut Water System | County of Trinity | 26 | 0 | 0 |
| River Meadows Trailer Park | County of Trinity | 26 | 0 | 0 |
| The Stage Stop Deli | County of Trinity | 25 | 0 | 0 |
| Sportsman Deli | County of Trinity | 25 | 0 | 0 |
| Dick Arnold | County of Trinity | 25 | 0 | 0 |
| Burnt Ranch Residence - Usfs | County of Trinity | 25 | 0 | 0 |
| Burnt Ranch Campground | County of Trinity | 25 | 0 | 0 |
| Frank Ziegler | County of Trinity | 25 | 0 | 0 |
| G Verhulst | County of Trinity | 25 | 0 | 0 |
| Ruby G Weske | County of Trinity | 25 | 0 | 0 |
| James Munro | County of Trinity | 25 | 0 | 0 |
| Bud Fine | County of Trinity | 25 | 0 | 0 |
| Estrellita Marina & Rv Park, Inc. | County of Trinity | 25 | 0 | 0 |
| Coffee Creek Guard Station | County of Trinity | 25 | 0 | 0 |
| Don & Alice Mayberry | County of Trinity | 25 | 0 | 0 |
| Hayfork Summit Fountain | County of Trinity | 25 | 0 | 0 |
| Shasta Trinity Nat Forest | County of Trinity | 25 | 0 | 0 |
| Western Pacific L-c Corp | County of Trinity | 25 | 0 | 0 |
| Hettenshaw Ridge Mutual Water | County of Trinity | 25 | 0 | 0 |
| Mad River Ranger District | County of Trinity | 25 | 0 | 0 |
| Mad River Barracks | County of Trinity | 25 | 0 | 0 |
| Hyampom Arts Magnet School | County of Trinity | 25 | 0 | 0 |
| ZIEGLER'S TRAILS END | County of Trinity | 25 | 0 | 0 |
| Cooper Gulch | Ceres Farm Labo | 25 | 0 | 0 |
| River Road Market | County of Trinity | 25 | 0 | 0 |
| Union Oil Station | County of Trinity | 25 | 0 | 0 |
| Mission Store | County of Trinity | 25 | 0 | 0 |
| Phillips 66 | County of Trinity | 25 | 0 | 0 |
| Fred Nason Jr | County of Trinity | 25 | 0 | 0 |
| Blackie Road Water System #12 | County of Trinity | 25 | 0 | 0 |
| Trinity River Hatchery | County of Trinity | 24 | 0 | 0 |
| Peanut Water System | County of Trinity | 24 | 0 | 0 |
| Big Flat Campground | County of Trinity | 24 | 0 | 0 |
| Del Loma Cabins | County of Trinity | 24 | 0 | 0 |
| Burnt Ranch Guard Station | County of Trinity | 24 | 0 | 0 |
| Cedar Flat Resort | County of Trinity | 24 | 0 | 0 |
| Junction City Guard Station | County of Trinity | 24 | 0 | 0 |
| Riverside Trailer Park | County of Trinity | 24 | 0 | 0 |
| Oden Flat Water System | County of Trinity | 24 | 0 | 0 |
| Deer Creek Stop Gap W.a. | County of Trinity | 22 | 0 | 0 |
| Big Bar Ranger Station | County of Trinity | 21 | 0 | 0 |
| Big Foot Campground | County of Trinity | 21 | 0 | 0 |
| Mountainaire Mutual Water Company | County of Trinity | 20 | 0 | 0 |
| Trinity River Resort | County of Trinity | 14 | 0 | 0 |
| Burnt Ranch Campground | County of Trinity | 14 | 0 | 0 |
| Hoaglin-zenia School | County of Trinity | 13 | 0 | 0 |
| Denny Guard Station | County of Trinity | 10 | 0 | 0 |
| Lewiston Park Mwc | County of Trinity | 0 | 0 | 0 |
| Old Lewiston Inn | County of Trinity | 0 | 0 | 0 |
| Ripple Creek Cabins | County of Trinity | 0 | 0 | 0 |
| Weaver Creek Trailer Park | County of Trinity | 0 | 0 | 0 |
| Indian Creek Lodge | County of Trinity | 0 | 0 | 0 |
| The Red Barn Restaurant & Bakery | County of Trinity | 0 | 0 | 0 |
| Seventh Day Adventist School | County of Trinity | 0 | 0 | 0 |
| Big Flat Pizza | County of Trinity | 0 | 0 | 0 |
| Trinity Canyon Lodge | County of Trinity | 0 | 0 | 0 |
| The Gold Digger & Mini Burger | County of Trinity | 0 | 0 | 0 |
| Hobart Creek Campground | County of Trinity | 0 | 0 | 0 |
| Hyampom Guard Station | County of Trinity | 0 | 0 | 0 |
| Cwsc Bolsa Knolls | Bolsa Knolls | 0 | 0 | 0 |