Water Hardness California

Here are the water hardness values for the cities in California

City	AVG Hardness PPM / mg/L	AVG Hardness Grains per Gallon	More Info
Acton	298	17.4
Alameda	156	9.1
Alhambra	184	10.8
Alvarado	214	12.5
Alviso	51	3.0
Anaheim	300	17.5
Antelope Valley Northeast Los Angeles County	93	5.4
Antioch	57	3.3
Apple Valley	150	8.8
Arcadia	195	11.4
Arvin (Tejon-Castac)	102	6.0
Azusa	165	9.7
Bakersfeild (North Garden)	79.2	4.6
Bakersfield	74.6	4.4
Baldwin Park	190	11.1
Bellflower	237	13.9
Berkeley	35	2.0
Brentwood	368	21.5
Buena Park	240	14.0
Burbank	259	15.1
Camarillo	89	5.2
Carlsbad	228	13.3
Ceres	174.2	10.2
Cerritos	180	10.5
Chico	126	7.4
Chino	258	15.1
Chino Hills	147	8.6
Chula Vista	286.5	16.8
Citrus Heights	130	7.6
Clovis	69.5	4.1
Coachella	140	8
Colton	181.2	10.6
Compton	229.4	13.4
Concord	77.7	4.5
Corona	206	12.0
Costa Mesa	119	7.0
Covina	140	8.2
Coyote Valley	241	14.1
Cresent City	59	3
Daly City	47	2.7
Davis	73.8	4.3
Delano	44	2.6
Desert View Highlands	114.7	6.7
Downey	14.4	0.8
Edenvale	304	17.8
El Cajon	166	9.7
El Monte	270	15.8
Elk Grove	90	5.3
Encinitas	247	14.4
Escondido	170	9.9
Evergreen	98	5.7
Fairfield	122	7.1
Folsom	22.3	1.3
Fontana	113.5	6.6
Fountain Valley	240	14.0
Fremont	6	0.4
Fresno	123	7.2
Fullerton	19	1.1
Garden Grove	119	7.0
Gardena	200	11.7
Gilroy	263	15.4
Glendale	12	0.7
Hanford	11.4	0.7
Hawthorne	200	11.7
Hayward	44	2.6
Hemet	257.7	15.1
Hesperia	68.7	4.0
Huntington Beach	184	10.8
Huntington Park	171.5	10.0
Indio	110.7	6.5
Inglewood	231.5	13.5
Irvine	195.3	11.4
Jurupa Valley	185	10.8
Kagel Canyon	84	5.0
La Habra	287	16.8
Laguna Niguel	240	14.0
Lake Forest	240	14.0
Lake Los Angeles	118	6.9
Lakewood	158	9.2
Lancaster	114.7	6.7
Littlerock	154.7	9.0
Livermore	261	15.3
Lodi	137	8.0
Long Beach	100.5	5.9
Los Angeles	127	7
Lynwood	245.2	14.3
Madera	76.4	4.5
Malibu	109	6.4
Manteca	175	10.2
Marina Del Rey	109	6.4
Mecca	393	23
Menifee	144	8.4
Mendocino	101	5
Merced	126	7.4
Milpitas	91	5.3
Miramar	179	10.5
Mission Viejo	240	14.0
Modesto	194	11.3
Monterey Park	220	12.9
Moreno Valley	208	12.2
Mountain View	47	2.7
Murrieta	120.8	7.1
Napa	118	6.9
Newark	4	0.2
Newport Beach	240	14.0
North San Jose	51	3.0
Norwalk	330	19.3
Oakland	140	8.2
Oceanside	141	8.2
Ontario	123	7.2
Orange	16	0.9
Otay	214	12.5
Oxnard	322	18.8
Palmdale	119	7.0
Palo Alto	47	2.7
Paramount	171.5	10.0
Pasadena	12.9	0.8
Pearblossom	154.7	9.0
Perris	92	5.4
Petaluma	92.3	5.4
Pico Rivera	241	14.1
Pittsburg	63	3.7
Pleasanton	89 - 460	5.2 - 27.0	Source
Pomona	206.3	12.1
Porterville	143.6	8.4
Poway	204	11.9
Rancho Cordova	80	4.7
Rancho Cucamonga	151	8.8
Rancho Santa Margarita	240	14.0
Redding	31	1.8
Redlands	149	8.7
Redondo Beach	316	18.5
Redwood City	47	2.7
Rialto	160	9.4
Richmond	78	4.6
Riverside	188	11.0
Rock Creek	305	17.8
Roseville	80.5	4.7
Sacramento	102	6.0
Salinas	315	18.4
San Bernardino	251.6	14.7
San Clemente	240	14.0
San Diego	241	15.0
San Francisco	51	3.0
San Jose	132	8.0
San Leandro	78	4.6
San Luis Obispo	171	10.0
San Marcos	54	3.2
San Mateo	47	2.7
San Ramon	368	21.5
Santa Ana	180.5	10.6
Santa Barbara	330	19.3
Santa Clara	97.5	5.7
Santa Clarita	267.8	15.7
Santa Cruz	175	10.2
Santa Maria	146	8.5
Santa Monica	162	9.5
Santa Rosa	145.5	8.5
Simi Valley	182.3	10.7
South Gate	220.9	12.9
South San Francisco	47	2.7
Stockton	25.5	1.5
Sun Village	154.7	9.0
Sunnyvale	153	8.9
Temecula	120.8	7.1
Thousand Oaks	119	7.0
Torrance	320.5	18.7
Tracy	283	16.6
Tulare	25.4	1.5
Turlock	114.3	6.7
Tustin	255.5	14.9
Union City	11	0.6
Union City	89	5.2
Upland	150.2	8.8
Vacaville	183	10.7
Val Verde	267.8	15.7
Valenica	268	16
Vallejo	129	7.5
Ventura	472.7	27.6
Victorville	30.7	1.8
Visalia	81	4.7
Vista	161	9.4
Walnut Creek	78	4.6
Watsonville	281	16.4
West Corvina	150	8.8
West Sacramento	65	3.8
Westminster	240	14.0
Whittier	290	17.0
Woodland	63	3.7
Yorba Linda	240	14.0
Yuba City	58	3.4