Tap Truth EPA drinking water records, in plain English

County drinking water records

Riverside County, CA drinking water systems

101 community water systems serve Riverside County, CA, reporting 2,676,046 people served in all. A system that also serves other counties counts all of its customers here.

25 of them (25%) had at least one health-based violation in the last 10 years. 16 systems still have one unresolved.

77 rely mainly on groundwater and 24 on surface water, counting water bought from other systems.

91 systems filed a lead service line inventory listing 0 lead lines, 128 galvanized lines that must be replaced and 33,588 lines of unknown material.

24 more systems are placed in Riverside County, CA by mailing address or by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
101
People served, sum of each system's own figure
2,676,046
Systems with a health-based violation, last 10 years
25
Systems with one unresolved
16
Lead service lines in inventories
0

Water systems serving Riverside County

101 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Eastern Municipal WD Moreno Valley, Menifee and 17 more 666,581 Purchased surface water 0 0 0
City of Riverside Riverside, El Sobrante and 2 more 298,398 Groundwater under direct influence 0 0 0
Coachella VWD: Cove Community La Quinta, Indio and 14 more and land outside them 270,000 Groundwater 0 0 0
Elsinore Valley MWD Lake Elsinore, Wildomar and 6 more 169,455 Surface water 0 0 0
City of Corona Corona, El Cerrito and 1 more 168,575 Purchased surface water 0 0 0
Rancho California Water District Temecula and Murrieta and land outside them 146,147 Purchased surface water 0 0 0
Jurupa Community SD Jurupa Valley and Eastvale 135,093 Purchased surface water 0 0 0
Western MWD Lake Mathews, March ARB and 4 more 86,062 Purchased surface water 0 0 0
Indio Water Authority Indio 84,757 Groundwater 0 0 0
Desert Water Agency Palm Springs, Desert Hot Springs and 3 more and land outside them 74,807 Surface water 0 0 0
Beaumont Cherry Valley WD Beaumont and Cherry Valley 66,841 Groundwater 0 0 0
Lake Hemet MWD Valle Vista, East Hemet and 2 more 52,913 Groundwater 1 0 0
Yucaipa Valley Water District Yucaipa, Calimesa and 1 more 52,010 Surface water 4 0 0
Coachella Water Authority Coachella 43,590 Groundwater 0 0 0
Mission Springs WD Desert Hot Springs, Whitewater and 3 more and land outside them 43,484 Groundwater 0 0 0
Rubidoux Community SD Jurupa Valley 36,827 Groundwater 0 0 0
City of Hemet Hemet 33,828 Purchased surface water 0 0 0
City of Banning Banning 31,680 Groundwater 0 0 0
City of Norco Norco 25,068 Purchased surface water 1 0 0
Temescal Valley Water District Temescal Valley 21,971 Purchased surface water 0 0 0
Riverside Highland Water Company Grand Terrace and Highgrove 20,188 Groundwater 0 0 0
City of San Jacinto San Jacinto 18,950 Groundwater 0 0 0
Western MWD - Murrieta Division Murrieta 17,453 Purchased surface water 0 0 0
Morongo Cabazon and land outside it 16,000 Groundwater 0 0 0
South Mesa WC Yucaipa and Calimesa 10,108 Groundwater 0 0 0
City of Blythe - Blythe 9,798 Groundwater 0 0 0
Myoma Dunes Mutual Water Company Bermuda Dunes and La Quinta 9,445 Groundwater 0 0 0
Nuevo Water Company Nuevo and Lakeview 6,733 Purchased surface water 5 0 0
Santa Ana River Water Company Jurupa Valley 5,848 Groundwater 0 0 0
Coachella VWD: I.D. No. 8 Indio Hills, Sky Valley and 3 more and land outside them 4,600 Groundwater 0 0 0
California Rehabilitation Center - Norco Norco 4,300 Purchased surface water 0 0 0
Chuckawalla Valley State Prison Blythe 4,090 Groundwater 0 0 0
Farm Mutual W.C. (The) Wildomar 4,026 Purchased surface water 0 0 0
Idyllwild Water District Idyllwild-Pine Cove 3,762 Groundwater 2 0 0
Box Springs Mutual WC Moreno Valley 3,382 Purchased surface water 0 0 0
Home Gardens County WD Home Gardens 3,095 Purchased surface water 0 0 0
Soboba Outside cities and towns 3,000 Groundwater 0 0 0
Cabazon Water District Cabazon and land outside it 2,010 Groundwater 0 0 0
Pine Cove Water District Idyllwild-Pine Cove 1,540 Groundwater 0 0 0
Oasis Mobile Home Park Oasis 1,350 Groundwater 17 2 0
Glen Ivy Hot Springs Temescal Valley 1,087 Groundwater 1 2 No inventory
Fern Valley WD Idyllwild-Pine Cove 900 Surface water 0 0 0
Plantation on the Lake Park Calimesa 897 Groundwater 0 0 0
Riverside CSA #122-Mesa Verde Mesa Verde 766 Groundwater 0 0 0
High Valleys Water District Outside cities and towns 733 Purchased groundwater 0 0 0
Lake Hemet-Garner Valley Outside cities and towns 709 Groundwater 0 0 0
CSA 62 Ripley 614 Groundwater 1 1 0
Carver Tract Mutual Water Comp Outside cities and towns 600 Groundwater 1 2 No inventory
Lake Hemet MWD-Camp Ground Outside cities and towns 600 Groundwater 0 0 0
Banning Hts. Mutual Water Co. Outside cities and towns 567 Surface water 0 0 0
Glen Eden Sun Club Temescal Valley 566 Purchased surface water 3 0 0
Blythe - Mesa Ranch Blythe 558 Groundwater 0 0 0
Chiriaco Summit Water Dist. Outside cities and towns 544 Purchased surface water 0 0 0
West Palm Springs Village Whitewater 517 Groundwater 0 0 0
Golden Era Productions Outside cities and towns 500 Groundwater 0 0 0
Palm Springs Crest Whitewater 399 Groundwater 0 0 0
Blythe - Hidden Beaches Blythe 393 Groundwater 0 0 0
Torres-Martinez Clinic Oasis and land outside it 379 Purchased groundwater 0 13 0
Lost Lake Resort Outside cities and towns 355 Groundwater 0 0 0
Fisherman's Retreat Outside cities and towns 352 Groundwater 1 2 No inventory
CSA 51 Desert Center 350 Groundwater 0 0 0
Olive Dell Ranch Redlands and land outside it 350 Groundwater 0 0 0
Sharondale Mesa HOA Calimesa 340 Groundwater 0 0 0
Amezcua - Garcia Water Outside cities and towns 316 Groundwater 4 2 No inventory
Riverdale Estates Indio 300 Groundwater 0 0 0
Rancho Calimesa Mobile Home Park Calimesa 296 Groundwater 0 0 0
Ramona Water Company Anza 250 Groundwater 24 2 0
Murrieta Palms Mobile Home Park Murrieta 237 Groundwater 0 0 0
Pinyon Pines County Water Dist Outside cities and towns 232 Groundwater 0 0 0
Anza Mutual Water Company Anza 224 Groundwater 1 2 No inventory
Olivet University Outside cities and towns 212 Groundwater 0 0 0
Cherry Valley Water Company Cherry Valley 210 Groundwater 0 0 0
Rancho Carrillo MWC Outside cities and towns 210 Groundwater 3 0 0
Anza RV Resort Outside cities and towns 203 Groundwater 0 0 0
Alpine Village Outside cities and towns 198 Groundwater 27 0 0
Western MWD (Id A - Rainbow) Outside cities and towns 192 Purchased surface water 0 0 0
Santa Rosa Reservation Outside cities and towns 185 Groundwater 0 0 0
Ortega Oaks RV Park&Campground Outside cities and towns 180 Groundwater 4 2 0
Thomas Mountain Water Company Outside cities and towns 157 Groundwater 1 1 0
Stone Creek Water Company Outside cities and towns 152 Groundwater 1 3 No inventory
Reche Canyon Mutual Water Co. Outside cities and towns 150 Groundwater 0 0 0
Valley View Trailer Park Thermal 135 Groundwater 1 2 No inventory
Oak Haven Association Outside cities and towns 120 Groundwater 0 0 0
Pinyon Crest HOA Outside cities and towns 104 Groundwater 1 2 No inventory
Anza Pines Mobile Home Park Anza 90 Groundwater 0 0 0
Baldy Mountain Ranch Outside cities and towns 80 Groundwater 0 0 0
Mountain Center Cafe Mountain Center 77 Groundwater 0 0 0
Bradford Run RV Outside cities and towns 75 Groundwater 0 0 0
Thermal Park Outside cities and towns 73 Groundwater 1 2 No inventory
Bautista CC No. 36 Outside cities and towns 73 Groundwater 0 0 0
Indian Oaks Trailer Park Outside cities and towns 70 Groundwater 20 0 0
Desert View Trailer Park Thermal 60 Groundwater 1 2 No inventory
Harmony Haven Outside cities and towns 54 Groundwater 0 0 0
Trails End Mutual Water Company Outside cities and towns 52 Groundwater 0 0 0
Galindo Housing Facility Indio 50 Groundwater 0 0 0
Mesa Grande (Tract 2) Anza 43 Groundwater 0 0 0
Stonewood Canyon Estates Idyllwild-Pine Cove 40 Groundwater 2 0 0
Blythe Mobile Home Estates Outside cities and towns 35 Groundwater 0 0 0
Paradise Valley MWC Outside cities and towns 30 Groundwater 0 0 0
Royal Carrizo HOA Outside cities and towns 25 Groundwater 0 0 0
MWD - Eagle Mountain Outside cities and towns 15 Surface water 0 0 0

Systems placed by mailing address or county record in Riverside County

24 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by mailing address or by the county their records name, and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Torres-Martinez Avenue 64 Mailing address in Thermal 180 Groundwater 0 0 0
Montano Ranch County on record 72 Groundwater 1 0 0
Toledo MHP County on record 68 Groundwater 5 22 0
Aguirre MHP Mailing address in Indio 60 Groundwater 1 0 0
Ramon Zaragoza Water County on record 51 Groundwater 0 0 0
Angelique Maelee Properties County on record 50 Groundwater 5 1 0
Gamez MHP County on record 48 Groundwater 0 0 0
El Mesquite MHP County on record 48 Groundwater 0 0 0
Ruiz MHP County on record 46 Groundwater 0 0 0
Rodriguez MHP County on record 45 Groundwater 0 0 0
Castro Ranch County on record 44 Groundwater 0 0 0
Gonzalez MHP County on record 41 Groundwater 0 0 0
Ranchos Los Ferro MHP County on record 41 Groundwater 0 0 0
Sandoval MHP County on record 38 Groundwater 0 1 0
Vargas MHP County on record 35 Groundwater 0 0 0
Indian Village Mailing address in Mecca 35 Groundwater 2 2 0
Arellano MHP County on record 30 Groundwater 1 0 0
Desert Rose MHP County on record 30 Groundwater 7 0 0
La Cienega MHP County on record 30 Groundwater 0 3 0
Mora MHP County on record 25 Groundwater 0 1 0
Barajas MHP Mailing address in Thermal 25 Groundwater 0 0 0
Garcia MHP County on record 25 Purchased groundwater 0 0 0
Western MWD (Arlington) County on record Not reported Purchased surface water 0 0 0
Chino Basin Desalter Auth. - Desalter 2 County on record Not reported Groundwater 0 0 0

Cities and towns in Riverside County

72 places

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Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations