California — all systems

California water systems A–Z

Page 8 of 11 · Pacific Palisades → Riverdale Park Tract Csd. Every public water system we track in California, alphabetically. Each links to the system's measured contaminant levels against federal limits.

• Pacific Palisades (2023)
• Pacific Point Christian School (2023)
• Pacific Reserve Nursery Ws (2024)
• Pacific Scientific Energetic Mats. Comp. (2025)
• Pacific Union College (2023)
• Pacific Union Elementary School (2023)
• Pacific Valley School Ws (2024)
• Pacific Woodtech (2024)
• Packwood School (2025)
• Pacoima (2023)
• Padre Dam MWD (2025)
• Page Avenue Mutual Water Company (2024)
• Paicines Ranch (2024)
• Painted Cave (2022)
• Pajaro Valley Greenhouse Ws (2024)
• Pali Overnight Adventures (2025)
• Palisade Glacier High School (2025)
• Palisades Tahoe 8200 Water System (2024)
• Palisades, the (2025)
• Palm Ranch Irrigation Dist. (2023)
• Palm Springs Aerial Tramway (2023)
• Palm Springs Crest (2023)
• Palmdale Water Dist. (2024)
• Palmer Creek Csd (2024)
• Palms (2023)
• Palms River Resort (2024)
• Palo Alto Park Mutual Water Company — East Palo Alto, Ca (2023)
• Palo Verde County Water Dist. (2021)
• Palo Verde Union Elementary School (2023)
• Palomar Christian Conference Center (2025)
• Palomar Mountain Mutual Water Co. (2024)
• Palomar Observatory (2023)
• Palomino Estates Water Company (2023)
• Palomino Lakes Mutual Water Co. (2023)
• Panama Road Property Owners Assoc (2024)
• Panoche Water District (2023)
• Panorama City (2023)
• Pappas & Co (mendota) (2025)
• Par Country Estates Csa-16 (2024)
• Paradise Irrigation District — Paradise, Ca (2023)
• Paradise Lake Mutual Water Co. (2023)
• Paradise Mobile Estates (2025)
• Paradise Ranch Mhp — Beverly Hills, Ca (2023)
• Paradise Rd Ws #05 (2024)
• Paradise Rd Ws #09 (2025)
• Paradise Rd Ws #21 (2025)
• Paradise School (2025)
• Paradise Valley Mwc (2024)
• Paradise Water System (2025)
• Paragon Triangle Water Supply (2024)
• Paramount - City, Water Dept. (2025)
• Pardee Center (2023)
• Pardee Recreation Area (2025)
• Park Green Houses Water System (2025)
• Park Heights Mutual Water Co (2024)
• Park Investments Water System (2025)
• Park Moabi (2025)
• Park Royal Mutual Water Company (2025)
• Park West Mutual Water Company (2025)
• Parkway Lakes Rv Park (2025)
• Parsons Water Supply (2023)
• Partington Mwc (2024)
• Pasadena (2023)
• Paskenta Comm. Services Dist. (2025)
• Paso 360 (2025)
• Paso Robles Chevrolet Cadillac (2024)
• Patterson Tract Csd (2023)
• Patterson, City of (2024)
• Pauma Valley Water Company (2024)
• Pavestone (2024)
• Pcsh, Llc (2025)
• Pcwa - Weimar (2025)
• Peak To Peak Mountain Charter School Ws (2025)
• Pedrazzi Mwc (2025)
• Peju Province (2024)
• Pena's Disposal Services (2025)
• Penn Valley Shopping Center (2023)
• Penngrove Water Company (puc) (2024)
• Pentecostal Ws (2025)
• Peppermint Creek Mhp (2025)
• Pesante Rd Ws #02 (2025)
• Pesante Rd Ws #06 (2024)
• Petaluma, City of (2023)
• Peter Pitchess Honor Rancho Detn. Ctr (2024)
• Peters Fruit Farms, Inc (2024)
• Pg & E Pipeline Operation (2023)
• Pg&e (2023)
• Pg&e (2025)
• Pg&e - Table Mountain (2024)
• Pg&e Auberry Service Center (2024)
• Pg&e Gregg Substation and Gc Yard (2025)
• Pg&e Helms Support Facility (2024)
• Pg&e Metcalf (2024)
• Pg&e Oakhurst Service Center (2025)
• Pg&e Rodgers Flat Service Center (2025)
• Phelan Pinon Hills Csd (2024)
• Phelps Vineyards (2025)
• Pheneger Creek Ws (2023)
• Phillipsville C.s.d. (2024)
• Phoenix Lake Estates Cc Mwc (2024)
• Pico Rivera - City, Water Dept. (2025)
• Pico Wd — Pico Rivera, Ca (2023)
• Piedmont (2024)
• Pier 1900 Homeowner's Association (2024)
• Pierpoint Springs Water Co. (2023)
• Pike Ranch Mutual Water Co (2024)
• Pilot Travel Center #168 - Water (2024)
• Pine Cove Rv Park (2025)
• Pine Cove Water District (2023)
• Pine Creek Village (2025)
• Pine Grove Comm Serv Dist (2025)
• Pine Grove Mobile Home Park (2023)
• Pine Grove Mobilehome Park (2025)
• Pine Hill Egg Ranch (2024)
• Pine Hill Terrace Mobile Home Park (2025)
• Pine Hills Mutual Water Company (2023)
• Pine Mountain Mutual Water Co. (2024)
• Pine Ridge Park Estates (2023)
• Pine Ridge School (2025)
• Pine Ridge Winery (2024)
• Pine St Ws #01 (2023)
• Pine Tree Lane Mutual Water Co (2025)
• Pine Union School (2021)
• Pine Valley Bible Conference Center (2025)
• Pine Valley Border Patrol Station (2023)
• Pine Valley Mutual Wc (2025)
• Pine Valley Trailer Park (2024)
• Pinebrook Community Water Well (2022)
• Pinecrest Elementary School (2024)
• Pinecrest Permittees Assn (2025)
• Pinedale County Water District (2024)
• Pineview Mobile Home Park (2023)
• Pinole (2024)
• Pinon Pines Mwc (2024)
• Pinon Valley Water Company (2023)
• Pinyon Crest Hoa (2024)
• Pinyon Pines County Water Dist (2021)
• Pioneer Elementary School (2025)
• Pioneer Elementary School (2024)
• Pioneer Equine Hospital Water System (2023)
• Pioneer Hi-bred International (2025)
• Pioneer Place Mws (2023)
• Pismo Beach Water Department (2024)
• Piute Mountain School Water (2025)
• Pixley Public Util Dist (2025)
• Placer Csa - Sheridan (2024)
• Placer Cwa - Alta (2025)
• Placer Cwa - Applegate (2025)
• Placer Cwa - Auburn/bowman (2025)
• Placer Cwa - Bianchi Estates (2024)
• Placer Cwa - Colfax (2025)
• Placer Cwa - Foothill (2025)
• Placer Cwa - Monte Vista (2025)
• Placerville, City of - Main — Placerville, Ca (2023)
• Plainfield Elem School - Water (2025)
• Plainsburg Elementary School (2025)
• Plainview Mutual Water Company (2025)
• Plainview Mwc - Central Water (2023)
• Planada Csd — Planada, Ca (2023)
• Planada Elementaryschool (2025)
• Plantation Mobile Home Park (2024)
• Plantation on the Lake Park (2024)
• Plavada Community Association (2023)
• Playa del Rey (2023)
• Playa Dulce (2023)
• Plaza Elementary School (2023)
• Plaza Mobile Home Park (2024)
• Pleasant Grove Elem. School (2023)
• Pleasant Grove Elementary School (2024)
• Pleasant Grove Mhp (2023)
• Pleasant Hill (2024)
• Pleasant Ridge School (2023)
• Pleasant Valley Baptist Church (2020)
• Pleasant Valley Elementary (2022)
• Pleasant Valley Mutual Water Co (2024)
• Pleasant View West School (2025)
• Pleasantimes Mutual Water Co (2019)
• Plug Connection Lodi (2025)
• Plum Valley Elem School (new School) (2025)
• Plumas Eureka Csd (2023)
• Plumas Lake (2024)
• Plumfield Academy School (occidental Rd) (2024)
• Plymouth, City of (2025)
• Pnf Mt Hough Ranger Station (2025)
• Pnp Stockton #80 (2024)
• Poindexter Nut Company (2022)
• Point Arena Water Works (2024)
• Point Cabrillo Highlands (2025)
• Point Loma (2023)
• Point of View Mutual Water Co (2025)
• Polymerpak (2025)
• Pomona - City, Water Dept. (2025)
• Pond Mutual Water Company (2024)
• Pond School Water System (2023)
• Pond-derosa Oaks Wc (2023)
• Ponderosa Basin Mutual Wtr Co (2025)
• Ponderosa Csd (2024)
• Ponderosa Mobile Home Park (2024)
• Ponderosa Telephone-service Ct (2025)
• Poplar Comm Service Dist — Poplar, Ca (2023)
• Port Hueneme City Water Dept — Port Hueneme, Ca (2023)
• Port San Luis Harbor District (2024)
• Port Sonoma Marina (2025)
• Porterville - East Plano (2022)
• Porterville Citrus Rayo (2025)
• Porterville Developmental Center (2024)
• Porterville Mobile Village (2025)
• Porterville-jones Corner (2025)
• Porterville, City of (2025)
• Portola Improvement Association Mwc (2025)
• Post Ranch Inn Ws (2025)
• Potrero Elementary School (2022)
• Potrero Hill (2024)
• Potter Valley School District (2025)
• Poway, City of (2025)
• Prairie Elementary School (2025)
• Prather Water District (2023)
• Precision Mutual Water Company (2025)
• Presentation School (2024)
• Preserve at Millerton Lake Water System (2025)
• Presidio of San Francisco (2025)
• Prima Frutta Packing (2024)
• Primex Farms Water System (2023)
• Primm Valley Golf Club (2019)
• Primrose Lane Apartments (2024)
• Princes Camp Resort Ws (2023)
• Prunedale Mwc (2023)
• Prunedale School Ws (2025)
• Prunedale Shopping Center Ws (2024)
• Prunetree Shopping Center Ws (2025)
• Psmcsd - Blackie Rd Ws (2025)
• Psmcsd - Langley/valle Pacifico Ws (2024)
• Psmcsd - Moss Landing Harbor Ws (2025)
• Psmcsd - Normco (2025)
• Psmcsd - Pajaro (2025)
• Psmcsd - Springfield Ws (2025)
• Psmcsd - Sunny Mesa (2025)
• Psmcsd - Vega Rd Ws #01 (2024)
• Psmcsd - Vierra Estates Ws (2024)
• Puente Housing Solutions (2025)
• Puerta La Cruz Cc #14 (2025)
• Puresource Water, Inc (2025)
• Purina Mills Inc (2023)
• Purissima Hills Water District (2023)
• Pyramid Flowers (2024)
• Quady Residence and Wnery (2025)
• Quail Creek Estates Mutual Water Company (2023)
• Quartz Hill Water Dist. (2025)
• Quiet Oaks Mobile Home Park (2022)
• Quintette Service Corp Water (2023)
• Quivira Vineyards (2024)
• Qvwd-west & East Combined Water System (2024)
• R a Farms (2024)
• R Ranch at the Lake (2025)
• R-ranch in the Sequoias (2024)
• R-wild Horse Ranch (2024)
• R.s. Mutual Water Company (2024)
• Ragged Point Inn (2023)
• Rainbird Valley Mwc (2025)
• Rainbow Farms (2025)
• Rainbow Municipal Wd (2024)
• Raineri Mutual Water Company (2024)
• Rains Creek Water District (2024)
• Rambling Hills Estates (2025)
• Ramona Municipal Wd (2025)
• Ramona Oaks Rv Resort (2025)
• Ramona Water Company (2022)
• Ranch Road Estates Mutual Water Company (2025)
• Rancheritos #2 (2025)
• Rancheritos Mwc (2025)
• Rancho Bernardo (2023)
• Rancho Borromeo Mwc (2025)
• Rancho California Water District (2025)
• Rancho Calimesa Mobile Home Park (2021)
• Rancho Carrillo Mwc (2023)
• Rancho Chaparral Mwc (2023)
• Rancho Colina Mobile Home Park (2024)
• Rancho Colorado Ws (2024)
• Rancho Corralitos (2024)
• Rancho Cucamonga (2024)
• Rancho Del Campo Water System (2023)
• Rancho Del Oro Mhp (2024)
• Rancho Del Paradiso-cal Water Svc (puc) (2025)
• Rancho Los Amigos Hospital (2025)
• Rancho Marcelino Water (2025)
• Rancho Marina (2021)
• Rancho Murieta Community Servi (2024)
• Rancho Nipomo Water Company (2025)
• Rancho Pauma Mutual Wc (2025)
• Rancho Peñasquitos (2023)
• Rancho Pino Verde (2025)
• Rancho Robles Mutual Water Company (2024)
• Rancho Salinas Mbwc (2024)
• Rancho San Andreas (2025)
• Rancho San Joaquin Mwc (2024)
• Rancho San Joaquin Water Sys (2024)
• Rancho Santa Teresa Mw Co. (2025)
• Rancho Seco Inc. Water System (2023)
• Rancho Seco Ngs (smud) (2025)
• Rancho Sespe Workers Imp Assoc (2024)
• Rancho Tehama Elem School (2025)
• Rancho Ynecita (2023)
• Ranchos Del Rio (2023)
• Rand Communities Water District (2025)
• Randal's Ranchette Mutual Water Company (2024)
• Rapid River Mobilehome Park (2023)
• Ratna Ling Retreat (2025)
• Ratto Bros, Inc (2024)
• Rau Dairy (2025)
• Rawhide Mutual Water Company (2024)
• Rawson Creek Mutual Water Company (2025)
• Ray Water Company (2025)
• Ray's Station Winery (2025)
• Raymond Vineyard & Cellar (2025)
• Rbvon (2025)
• Rebel Ridge Village (2025)
• Reche Canyon Mutual Water Co. (2025)
• Red Bluff Fish & Wildlife Office (2025)
• Redcrest Water Works (2025)
• Redding Travel Center (2024)
• Redlands City Mud-water Div — Redlands, Ca (2023)
• Redway C.s.d. (2023)
• Redwood Empire Sawmill (2025)
• Redwood Glen Camp & Conference Ctr (2025)
• Redwood Heights Mutual Water Company (2024)
• Redwood Maint. & Oper. (2024)
• Redwood Park C.s.d. (2020)
• Redwood Terrace Mutual (2025)
• Redwood Valley County Water District (2025)
• Reedley, City of (2024)
• Reeds Creek Estates (2024)
• Reeds Creek School (2024)
• Reesedale Mutual (2022)
• Reforestation Technologies International (2024)
• Renaissance High School (2025)
• Reseda (2023)
• Resort Improvement District #1 (2023)
• Resource Center (2021)
• Resthaven Mobile Home Park (2024)
• Revol Greens (2024)
• Reworld Stanislaus, Inc (2024)
• Reynolds Consumer Products (red Bluff) (2024)
• Rialto (2024)
• Richard A. Mcgee Training Center (2022)
• Richardson Beardsley Park Inc. (2024)
• Richfield Elementary School (2019)
• Richgrove Community Services District (2022)
• Richmond (2024)
• Richmond District (2024)
• Richmond Elementary School (2023)
• Richvale Elementary School (2025)
• Ridge Mutual Water Company (2022)
• Ridgeview Estates Mwc (2024)
• Ridgewood Water System (2023)
• Riebli Mutual Water Company (2024)
• Rim Rock Water Company (2024)
• Rincon Del Diablo MWD (id-1) (2025)
• Rincon Del Diablo MWD (id-a) (2024)
• Rincon Valley Mobile Estates (2025)
• Rincon Water & Road Works (2025)
• Rio Alto Water District (2025)
• Rio Bend Rv Golf Resort & Storm Crossing (2022)
• Rio Bravo Greeley School Water System (2024)
• Rio Cosumnes Correctional Center [sws] (2025)
• Rio Dell, City of — Rio Dell, Ca (2023)
• Rio Linda/elverta Community Water Dist — Rio Linda, Ca (2023)
• Rio Lindo Adventist Academy (2023)
• Rio Manor Mutual Water Co (2024)
• Rio Mesa High School/oxnard Uhs (2024)
• Rio Ranch Community Svcs Dist (2023)
• Rio School Dist/ Rio Real School (2025)
• Rio School Dist/rio Del Valle School (2025)
• Rio Vista Mobile Home Park (2024)
• Rio Vista Mobilehome Estates (2023)
• Ripon Usd-colony Oak School (2024)
• Ripon, City of — Ripon, Ca (2023)
• Ripperdan Community Day School (2023)
• Riselen Park (2023)
• Rite of Passage/sierra Ridge (2023)
• River Breeze Mobile Home Park (2023)
• River Estates Mutual Water Company (2025)
• River Grove Mutual Water Assn (2024)
• River Highlands Csd (2025)
• River Pines Pud (2023)
• River Ranch Farm Worker Center (2023)
• River Ranch Mhp (2025)
• River Ranch Mobile Home Park (2025)
• River Rd Ws #25 (2025)
• River Retreat Mutual Water Company (2022)
• River Road Mutual Water Company (2025)
• River Road Plaza (2025)
• River Valley Christian School (2024)
• River View Mhc Llc (2025)
• River's Edge Marina & Resort (2023)
• Riverbank Lra (2023)
• Riverbank, City of (2023)
• Riverbend Mobile Home & Rv Park (2024)
• Riverbend Mobile Home Park (2025)
• Riverdale Estates (2025)
• Riverdale Park Tract Csd (2024)