EWG's Tap Water Database: What's in Your Drinking Water?

Systems serving San Diego County, California

Utility name	City	People served
Rancho Corrido Rv Resort	Pauma Valley	Population served: 350
California American Water Company - Coronado	Imperial Beach	Population served: 96,000
Vallecitos Water District	San Marcos	Population served: 94,871
City of Carlsbad	Carlsbad	Population served: 84,838
Fallbrook PUD	Fallbrook	Population served: 34,096
Descanso Community Services District	Sacramento	Population served: 870
Helix Water District	La Mesa	Population served: 267,922
Jacumba Community SD	Jacumba	Population served: 500
Rancho Pauma Mutual Water Company	Pauma Valley	Population served: 897
Lakeside WD	Lakeside	Population served: 42,200
Rainbow Municipal WD	Fallbrook	Population served: 19,611
Rincon Del Diablo MWD(ID-1)	Escondido	Population served: 24,545
Ramona Municipal WD	Ramona	Population served: 40,000
San Dieguito WD	Encinitas	Population served: 36,750
Santa Fe ID	Rancho Santa Fe	Population served: 21,081
Sweetwater Authority	Chula Vista	Population served: 186,685
Valley Center MWD	Valley Center	Population served: 25,450
Vista Irrigation District	Vista	Population served: 124,293
Olivenhain Municipal Water District	Encinitas	Population served: 63,000
Otay Water District	Spring Valley	Population served: 213,000
Borrego Water District	Borrego Springs	Population served: 3,403
Padre Dam Municipal Water District	Santee	Population served: 96,589
Pine Valley Mutual Water Company	Pine Valley	Population served: 1,500
Majestic Pines Community SD	Julian	Population served: 1,964
San Diego County Water Authority	Escondido	Population served: 0
Rincon Del Diablo Municipal Water District (id-a)	Escondido	Population served: 3,435
Poseidon Resources - Cdp	Carlsbad	Population served: 0
Campo Hills-county Public Works Wastewater	San Diego	Population served: 458
Camp Pendleton (North)	Camp Pendleton	Population served: 15,600
Camp Pendleton (South)	Camp Pendleton	Population served: 39,400
U.S. Navy San Clemente Island	San Diego	Population served: 400
Nas North Island & Nab Coronado	San Diego	Population served: 4,500
Puerta La Cruz Cc #14	Warner Springs	Population served: 125
Mccain Valley Cc #21	Jamestown	Population served: 115
La Cima Fire Center	Julian	Population served: 96
Barrett Lake Mobile Home and Rv LLC	Dulzura	Population served: 150
Heavenly Oaks	Lakeside	Population served: 300
H & J Water Company	Julian	Population served: 50
Cuyamaca Water District	Julian	Population served: 200
Sunrise Estates Mutual Water Company	Jamul	Population served: 150
Ocotillo Oasis Mobile Home Park	Encinitas	Population served: 100
Stuart Water Company	Rancho Santa Fe	Population served: 100
Rancho Del Campo Water System	Spring Valley	Population served: 290
Del Dios Mutual Water Company	Escondido	Population served: 330
Guatay Mutual Benefit Corporation	Guatay	Population served: 100
Lake Henshaw Resort Inc.	Santa Ysabel	Population served: 300
Pine Hills Mutual Water Company	Julian	Population served: 230
Julian Community Services District	Julian	Population served: 1,105
Rancho Santa Teresa Mw Company	Ramona	Population served: 74
Lake Wohlford Resort	Newport Beach	Population served: 235
Live Oak Springs Water Company	Boulevard	Population served: 300
Lake Morena Oak Shores Mw Company	Campo	Population served: 700
Lake Morena Views Mw Company	Campo	Population served: 360
Palomar Mountain Mutual Water Company	Palomar Mountain	Population served: 70
Pauma Valley Mutual Water Company	Pauma Valley	Population served: 120
Rancho Estates Mutual Water Company	Pauma Valley	Population served: 200
Lazy H Mutual Water Company	Pauma Valley	Population served: 70
Yuima Municipal Water District Ida	Pauma Valley	Population served: 400
Los Tules Mutual Water Company	Warner Springs	Population served: 140
Oakvale Park	Escondido	Population served: 100
San Pasqual Academy	Spring Valley	Population served: 350
Butterfield Ranch	San Diego	Population served: 350
Quiet Oaks Mobile Home Park	Warner Springs	Population served: 120
Yuima Municipal Water District	Pauma Valley	Population served: 260
North Peak Mutual Water Company	Julian	Population served: 25
Richardson Beardsley Park Inc.	Julian	Population served: 28
Twin Lakes Resort	Potrero	Population served: 200
Wynola Water District	Santa Ysabel	Population served: 120
Pine Valley Bible Conference Center	Pine Valley	Population served: 350
Pine Valley Trailer Park	Newport Beach	Population served: 200
Alpine Oaks Estates LLC	Dana Point	Population served: 125
Willowside Terrace Water Association	Alpine	Population served: 100
Palomar Observatory	Palomar Mountain	Population served: 50
Warner Springs Estates	Warner Springs	Population served: 345
Del Mar, City Of	Del Mar	Population served: 4,199
City of Escondido	Escondido	Population served: 145,901
City of Oceanside	Oceanside	Population served: 171,183
City of Poway	Poway	Population served: 96,973
City of San Diego	San Diego	Population served: 1,326,200