Stanislaus County, California Water Systems

Stanislaus County, California

128 community water systems on record — 61 active, 67 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

Community water systems in Stanislaus County, California

System name	City	Population served	Status
18962 SANDY ROAD CASTRO	MODESTO	62	Inactive
4N MOBILEHOME PARK	OAKDALE	65	Active
A & M INDUSTRIES	MODESTO	200	Inactive
ADAMAKIS WATER COMPANY	MODESTO	36	Inactive
ANDERSON'S CARE CENTER	—	48	Inactive
AZEVEDO MOBILE HOME PARK	PATTERSON	50	Inactive
BILLINGS WATER COMPANY/APARTME	CERES	25	Inactive
BUCHANAN WATER SYSTEM	MODESTO	25	Inactive
BUEHNER HOUSES	TRACY	25	Active
BUEHNER TRAILER COURT	PATTERSON	25	Inactive
BUEHNER WATER SYSTEM	TRACY	150	Active
BUEHNER WATER SYSTEM - WEBER COMPLEX	PATTERSON	30	Inactive
CARNES APARTMENTS	TURLOCK	1	Inactive
CASA DE AMIGOS MANUFACTURED HOUSING COMM	STOCKTON	204	Active
CERES FARM LABOR CAMP	CERES	300	Inactive
CERES WEST MHP	VACAVILLE	161	Inactive
CERES, CITY OF	CERES	54,513	Active
CITY OF MODESTO - CENTRAL TURLOCK	MODESTO	119	Active
CITY OF MODESTO - DEL RIO	MODESTO	1,327	Active
CITY OF MODESTO - GRAYSON	MODESTO	914	Active
CITY OF MODESTO - NORTH TURLOCK	MODESTO	172	Active
CITY OF MODESTO - SALIDA	MODESTO	14,537	Active
CITY OF MODESTO - SOUTH TURLOCK	MODESTO	1,099	Active
CITY OF MODESTO - WALNUT MANOR	MODESTO	175	Active
CITY OF MODESTO EXDE EMPIRE	MODESTO	0	Inactive
CITY OF MODESTO, EXDE COFFEE VILLAGE	MODESTO	0	Inactive
CITY OF MODESTO, EXDE HAMMETT	MODESTO	0	Inactive
CITY OF MODESTO, EXDE HWY VILLAGE	MODESTO	0	Inactive
CITY OF MODESTO, EXDE LINCOLN	MODESTO	0	Inactive
CITY OF MODESTO, EXDE OSTERBERG	MODESTO	0	Inactive
CITY OF MODESTO, EXDE SHERWOOD FOREST	MODESTO	0	Inactive
CITY OF MODESTO, EXDE SO. MOD. TRACT	MODESTO	0	Inactive
CITY OF MODESTO, EXDE W. MODESTO	MODESTO	0	Inactive
CITY OF NEWMAN-WATER DEPARTMENT	NEWMAN	12,207	Active
CITY OF WATERFORD	WATERFORD	8,788	Active
COBLES CORNER	HUGHSON	50	Active
CORSON AVENUE WELL WATER SYSTE	350	61	Inactive
COTTONWOOD GROVE MOBILE HOME	MODESTO	120	Inactive
COUNTRY SQUIRE ESTATES	DENAIR	144	Inactive
COUNTRY VILLA APTS	BRENTWOOD	60	Active
COUNTRY WESTERN MHRV	MODESTO	55	Active
COUNTRYSIDE MHP	TURLOCK	60	Inactive
CROWS LANDING COMM SVC DISTRICT	CROWS LANDING	500	Active
DEL ESTE WATER CO	MODESTO	13,720	Inactive
DEL ESTE WATER CO 7&LINC	MODESTO	8,915	Inactive
DEL ESTE WATER CO-1A	MODESTO	5,005	Inactive
DEL RIO EAST HOA WATER SYSTEM	STOCKTON	110	Active
DELUXE MOTEL	TURLOCK	25	Inactive
DENAIR COMMUNITY SERVICES DISTRICT	DENAIR	5,090	Active
DRAPERS #2/COUNTRY GUEST HOME	MODESTO	35	Inactive
EARLY'S WELL WATER SYSTEM	95368	60	Inactive
EL RANCHO MOBILE ESTATES	—	25	Inactive
FAITH HOME TEEN RANCH	TURLOCK	50	Inactive
FISHERMAN'S BEND MHP	GUSTINE	120	Active
FOSTER FARMS #5	HICKMAN	26	Active
GREEN RUN MOBILE ESTATES	TURLOCK	100	Inactive
HAKAM MISSON	LIVERMORE	0	Inactive
HILLSVIEW HOMES	MODESTO	887	Active
HILLSVIEW HOMES PUBLIC HOUSING	WESTLEY	250	Inactive
HUGHSON, CITY OF	HUGHSON	7,481	Active
INGLET'S MOBILE HOME PARK	CERES	120	Inactive
KENNETH DOBERENZ	HUGHSON	25	Inactive
KEYES COMMUNITY SERVICES DIST.	KEYES	5,672	Active
KNIGHTS FERRY COMM. SVC. DIST.	KNIGHTS FERRY	168	Active
LARA FARMS	WESTLEY	32	Inactive
LAS PALMAS MHP	CERES	35	Inactive
LAZY B MOBILEHOME PARK	SAN MATEO	125	Active
LONE PINE MHP	OAKDALE	64	Active
LORENZO WATER SYSTEM	CERES	25	Inactive
MARTIN'S MOBILE HOME COURT	SAN RAMON	60	Active
MAZE BLVD MOBILEHOME PARK	TRACY	36	Active
MILLER APARTMENTS, ROSS	CERES	25	Inactive
MOBILE PLAZA PARK	YORBA LINDA	125	Inactive
MODESTO IRRIGATION DISTRICT	MODESTO	23	Active
MODESTO MOBILE HOME PARK	OAKDALE	300	Inactive
MODESTO, CITY OF	MODESTO	218,771	Active
MONTEREY PARK TRACT CSD	CERES	186	Active
MORNINGSIDE MOBILEHOME PARK	MODESTO	67	Active
MULBERRY MHP	STOCKTON	148	Active
NORMILES DEVELOPMENT	TURLOCK	35	Inactive
NORTH OAKS MUTUAL WATER CO	OAKDALE	234	Active
OAKDALE RURAL WATER SYSTEM #2	OAKDALE	25	Inactive
OAKDALE, CITY OF	OAKDALE	23,235	Active
OASIS INVESTMENTS	TURLOCK	75	Active
OID - OAKDALE RURAL WATER SYSTEM #2	—	241	Inactive
OID #22 - WILLIAMS TRACT	OAKDALE	150	Active
OID #41 - MOUNTAIN VIEW	OAKDALE	147	Inactive
OID #45	OAKDALE	144	Active
OID #46 - SUNSET OAKS	OAKDALE	269	Active
OID #49 - GILBERT	OAKDALE	40	Inactive
OID #51 - SUNSET OAKS #10	OAKDALE	287	Active
OID-OAKDALE RURAL WATER SYSTEM #1	OAKDALE	1,570	Active
OLIVE LANE MOBILEHOME PARK	ACAMPO	153	Active
ORCHARD VILLAGE MHP	SACRAMENTO	75	Inactive
PARK HEIGHTS MUTUAL WATER CO	MODESTO	250	Active
PATTERSON, CITY OF	PATTERSON	24,977	Active
PAVLAKIS WATER SYSTEM	CERES	32	Inactive
PIRRO S RENTALS	OAKDALE	29	Inactive
RIVER ROAD MUTUAL WATER COMPANY	MODESTO	26	Active
RIVERBANK, CITY OF	RIVERBANK	24,834	Active
RIVERDALE PARK TRACT CSD	MODESTO	610	Active
RIVERVIEW MOBILE HOME ESTATES	SANTA CRUZ	540	Active
ROBBON PROPERTIES	NOVATO	25	Inactive
ROLLING HILLS NO 2	OAKDALE	33	Inactive
SHA WALNUT ACRES CLOSED DOWN	MODESTO	0	Inactive
SOUTH SAN JOAQUIN IRRIGATION DISTRICT	RIPON	25	Active
STAN COUNTY HONOR FARM	—	300	Inactive
STANISLAUS HOUSING AUTHORITY, CERES CAMP	MODESTO	0	Inactive
STANISLAUS REGIONAL WATER AUTHORITY	TURLOCK	0	Active
SUN GARDEN MOBILE VILLAGE	TURLOCK	160	Inactive
SUNRISE VILLAGE MHP	SCOTTSDALE	353	Active
TID/ LA GRANGE WATER SYSTEM	TURLOCK	195	Active
TRIEWEILER MOBILE HOME PARK	HUGHSON	50	Inactive
TULLY MOBILE ESTATES	OAKDALE	56	Active
TUOLUMNE RIVER RESORT	SONORA	250	Inactive
TURLOCK MOBILE ESTATES	SACRAMENTO	60	Inactive
TURLOCK-SOUTH FIRST ST COMMUN	TURLOCK	25	Inactive
TURLOCK, CITY OF	TURLOCK	72,682	Active
TWIN CYPRESS MOBILE HOME PARK	OAKDALE	112	Active
VILLA LOS FLORES WATER SYSTEM	PATTERSON	26	Inactive
WALNUT ACRES HOUSING DEVELOPMENT	PATTERSON	600	Inactive
WATERFORD - HICKMAN	WATERFORD	597	Active
WATERFORD-RIVER POINTE	WATERFORD	1,079	Active
WESTERN HILLS WATER DISTRICT/DIABLO GRAN	PATTERSON	2,000	Active
WESTLEY CSD	CROWS LANDING	70	Active
WESTWARD HO MOBILE HOME PARK	CERES	100	Inactive
WINTER'S SUNNY VISTA	MODESTO	36	Inactive
WINTERS CLAYTON AVE WATER SYSTEM	MODESTO	25	Inactive