LocalDataPoint

California Water Quality

Water hardness and quality data for 490 cities in California, USA.

107 mg/L

State average

🟡 Moderately Hard

Avg category

490

Cities tracked

Anaheim

Pop. 350,742

🟡 Moderately Hard
113.5 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Antioch

Pop. 110,542

🟠 Hard
133.5 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Bakersfield

Pop. 373,640

🟡 Moderately Hard
70.5 mg/Lmixed

PFAS: 4 ppt

Full report →

Berkeley

Pop. 120,972

🔴 Very Hard
190.5 mg/Lmixed

PFAS: 7.6 ppt

Full report →

Burbank

Pop. 105,319

🟠 Hard
131 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Carlsbad

Pop. 114,746

🟠 Hard
120 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Chico

Pop. 121,345

🟡 Moderately Hard
80.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Chinatown

Pop. 100,574

🟡 Moderately Hard
93 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Chula Vista

Pop. 265,757

🟠 Hard
126.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Clovis

Pop. 104,180

🟢 Soft
36.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Concord

Pop. 128,667

🟡 Moderately Hard
97 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Corona

Pop. 164,226

🟠 Hard
135.5 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Costa Mesa

Pop. 113,204

🟠 Hard
148.5 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Daly City

Pop. 106,562

🟡 Moderately Hard
79.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Downey

Pop. 114,219

🟡 Moderately Hard
75.5 mg/Lmixed

PFAS: 4.1 ppt

Full report →

East Los Angeles

Unincorporated area

Pop. 126,496

🟠 Hard
147.5 mg/Lmixed

PFAS: 6.2 ppt

Full report →

El Cajon

Pop. 103,679

🔴 Very Hard
183.5 mg/Lmixed

PFAS: 7.2 ppt

Full report →

El Monte

Pop. 116,732

🔴 Very Hard
195.5 mg/Lmixed

PFAS: 7.6 ppt

Full report →

Elk Grove

Pop. 166,913

🟢 Soft
50.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Escondido

Pop. 151,038

🟡 Moderately Hard
101.5 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Fairfield

Pop. 112,970

🟠 Hard
127.5 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Fontana

Pop. 212,704

🟠 Hard
123 mg/Lmixed

PFAS: 5.4 ppt

Full report →

Fremont

Pop. 232,206

🔴 Very Hard
180 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Fresno

Pop. 542,107

🟢 Soft
31 mg/Lmixed

PFAS: 2.8 ppt

Full report →

Fullerton

Pop. 140,847

🟢 Soft
53 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Garden Grove

Pop. 175,393

🟡 Moderately Hard
70 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Glendale

Pop. 201,020

🟠 Hard
127.5 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Hayward

Pop. 158,289

🔴 Very Hard
182 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Hollywood

Pop. 167,664

🟠 Hard
124 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Huntington Beach

Pop. 201,899

🟢 Soft
35 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Inglewood

Pop. 111,666

🟡 Moderately Hard
84.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Irvine

Pop. 256,927

🟡 Moderately Hard
103.5 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Koreatown

Pop. 124,281

🔴 Very Hard
191.5 mg/Lmixed

PFAS: 7.5 ppt

Full report →

Lancaster

Pop. 161,103

🟡 Moderately Hard
103.5 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Long Beach

Pop. 474,140

🟠 Hard
129.5 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Los Angeles

Pop. 3,820,914

🟡 Moderately Hard
95 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Modesto

Pop. 211,266

🟠 Hard
177.5 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Moreno Valley

Pop. 204,198

🟡 Moderately Hard
70.5 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Murrieta

Pop. 109,830

🟠 Hard
146 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Norwalk

Pop. 107,140

🟡 Moderately Hard
113 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Oakland

Pop. 419,267

🟠 Hard
142.5 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Oceanside

Pop. 175,691

🟠 Hard
163.5 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Ontario

Pop. 171,214

🟢 Soft
41.5 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Orange

Pop. 140,992

🟢 Soft
45.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Oxnard

Pop. 207,254

🟡 Moderately Hard
87 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Palmdale

Pop. 158,351

🟠 Hard
121 mg/Lmixed

PFAS: 5.4 ppt

Full report →

Pasadena

Pop. 142,250

🟠 Hard
165.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Pomona

Pop. 153,266

🟠 Hard
178 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Rancho Cucamonga

Pop. 175,236

🟠 Hard
127.5 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Rialto

Pop. 103,132

🟢 Soft
48.5 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Richmond

Pop. 109,708

🟢 Soft
51.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Riverside

Pop. 317,261

🟡 Moderately Hard
86 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Roseville

Pop. 130,269

🟠 Hard
145 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Sacramento

Pop. 524,943

🟡 Moderately Hard
65 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Salinas

Pop. 157,380

🟠 Hard
134 mg/Lmixed

PFAS: 5.9 ppt

Full report →

San Bernardino

Pop. 216,108

🟠 Hard
166 mg/Lmixed

PFAS: 6.7 ppt

Full report →

San Diego

Pop. 1,404,452

🟠 Hard
172.5 mg/Lmixed

PFAS: 6.9 ppt

Full report →

San Francisco

Pop. 827,526

🟢 Soft
58 mg/Lmixed

PFAS: 7.1 ppt

Full report →

San Jose

Pop. 997,368

🔴 Very Hard
189.5 mg/Lmixed

PFAS: 7.5 ppt

Full report →

San Mateo

Pop. 103,536

🟢 Soft
40.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Santa Ana

Pop. 310,227

🟡 Moderately Hard
76.5 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Santa Clara

Pop. 126,215

🟡 Moderately Hard
79 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Santa Clarita

Pop. 182,371

🟡 Moderately Hard
85.5 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Santa Maria

Pop. 105,093

🟡 Moderately Hard
91.5 mg/Lmixed

PFAS: 4.6 ppt

Full report →

Santa Rosa

Pop. 178,127

🟡 Moderately Hard
95.5 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Simi Valley

Pop. 126,788

🟡 Moderately Hard
109 mg/Lmixed

PFAS: 5.1 ppt

Full report →

Stockton

Pop. 305,658

🟠 Hard
133.5 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Sunnyvale

Pop. 155,805

🟢 Soft
35.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Temecula

Pop. 110,003

🟠 Hard
125.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Thousand Oaks

Pop. 129,339

🔴 Very Hard
188 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Torrance

Pop. 143,592

🟡 Moderately Hard
63.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Universal City

Pop. 105,000

🟠 Hard
176.5 mg/Lmixed

PFAS: 7 ppt

Full report →

Valencia

Pop. 148,456

🟢 Soft
43 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Vallejo

Pop. 121,692

🟢 Soft
44.5 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Van Nuys

Pop. 136,443

🟡 Moderately Hard
69 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Victorville

Pop. 122,225

🟡 Moderately Hard
104 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Visalia

Pop. 130,104

🟠 Hard
123.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Vista

Pop. 100,890

🟠 Hard
128.5 mg/Lmixed

PFAS: 5.6 ppt

Full report →

West Covina

Pop. 108,484

🟢 Soft
48 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Adelanto

Pop. 33,166

🔴 Very Hard
188.5 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Alameda

Pop. 78,630

🟢 Soft
39.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Alhambra

Pop. 85,551

🟡 Moderately Hard
65.5 mg/Lmixed

PFAS: 3.8 ppt

Full report →

Aliso Viejo

Pop. 50,195

🟡 Moderately Hard
72.5 mg/Lmixed

PFAS: 4 ppt

Full report →

Altadena

Pop. 42,777

🟡 Moderately Hard
95 mg/Lmixed

PFAS: 4.6 ppt

Full report →

Antelope

Pop. 45,770

🟠 Hard
128 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Apple Valley

Pop. 72,174

🟠 Hard
149.5 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Arcadia

Pop. 58,408

🟠 Hard
156 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Arden-Arcade

Pop. 92,186

🟢 Soft
58 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Azusa

Pop. 49,690

🟢 Soft
52 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Baldwin Park

Pop. 77,071

🟡 Moderately Hard
80 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Banning

Pop. 30,945

🟡 Moderately Hard
92 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Bayview-Hunters Point

Pop. 34,835

🟡 Moderately Hard
80.5 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Beaumont

Pop. 43,811

🟠 Hard
159.5 mg/Lmixed

PFAS: 6.5 ppt

Full report →

Bell

Pop. 36,205

🟠 Hard
171 mg/Lmixed

PFAS: 6.9 ppt

Full report →

Bell Gardens

Pop. 43,106

🟠 Hard
172.5 mg/Lmixed

PFAS: 6.9 ppt

Full report →

Bellflower

Pop. 78,441

🟠 Hard
179 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Beverly Hills

Pop. 34,869

🟢 Soft
53.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Boyle Heights

Neighborhood · Los Angeles

Pop. 92,785

🟢 Soft
40.5 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Brea

Pop. 41,944

🟢 Soft
51.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Brentwood

Pop. 58,968

🟢 Soft
51 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Brentwood

Pop. 33,312

🟢 Soft
55 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Buena Park

Pop. 83,270

🟡 Moderately Hard
115 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Burlingame

Pop. 30,459

🟠 Hard
131.5 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Calexico

Pop. 40,053

🔴 Very Hard
189.5 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Camarillo

Pop. 67,608

🟢 Soft
51.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Campbell

Pop. 41,117

🟡 Moderately Hard
80.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Canoga Park

Pop. 60,578

🟡 Moderately Hard
98.5 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Canyon Country

Pop. 59,530

🟡 Moderately Hard
101 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Carmichael

Pop. 61,762

🟠 Hard
122.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Carson

Pop. 93,281

🟠 Hard
137.5 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Castro Valley

Pop. 61,388

🟠 Hard
159 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Cathedral City

Pop. 53,826

🟠 Hard
171 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Ceres

Pop. 47,963

🟢 Soft
42 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Cerritos

Pop. 49,975

🟢 Soft
46.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Chatsworth

Pop. 41,255

🟡 Moderately Hard
70.5 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Chino

Pop. 85,595

🟡 Moderately Hard
102.5 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Chino Hills

Pop. 78,309

🟡 Moderately Hard
103 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Citrus Heights

Pop. 87,056

🟠 Hard
163.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Claremont

Pop. 36,283

🟠 Hard
176.5 mg/Lmixed

PFAS: 7 ppt

Full report →

Coachella

Pop. 44,635

🟢 Soft
44 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Colton

Pop. 54,621

🟡 Moderately Hard
82 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Compton

Pop. 98,462

🟡 Moderately Hard
98.5 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Covina

Pop. 48,984

🟠 Hard
170 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Culver City

Pop. 39,717

🟡 Moderately Hard
64.5 mg/Lmixed

PFAS: 3.8 ppt

Full report →

Cupertino

Pop. 60,572

🟡 Moderately Hard
62 mg/Lmixed

PFAS: 3.8 ppt

Full report →

Cypress

Pop. 49,290

🟡 Moderately Hard
74 mg/Lmixed

PFAS: 4 ppt

Full report →

Dana Point

Pop. 34,181

🟡 Moderately Hard
89 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Danville

Pop. 44,400

🟡 Moderately Hard
86.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Davis

Pop. 67,666

🟡 Moderately Hard
98 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Delano

Pop. 52,733

🟠 Hard
151 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Diamond Bar

Pop. 56,897

🔴 Very Hard
185 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Dublin

Pop. 57,721

🟡 Moderately Hard
89.5 mg/Lmixed

PFAS: 4.6 ppt

Full report →

Eastvale

Pop. 59,039

🔴 Very Hard
188.5 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Echo Park

Pop. 43,832

🟢 Soft
53 mg/Lmixed

PFAS: 3.4 ppt

Full report →

El Centro

Pop. 43,956

🔴 Very Hard
190 mg/Lmixed

PFAS: 7.3 ppt

Full report →

El Dorado Hills

Pop. 42,108

🔴 Very Hard
187.5 mg/Lmixed

PFAS: 7.5 ppt

Full report →

Encinitas

Pop. 62,930

🟡 Moderately Hard
89.5 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Encino

Pop. 44,581

🟡 Moderately Hard
88.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Fair Oaks

Pop. 30,912

🟠 Hard
125.5 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Fallbrook

Pop. 30,534

🟠 Hard
149 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Florence-Graham

Pop. 63,387

🟡 Moderately Hard
91 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Florin

Pop. 47,513

🟡 Moderately Hard
109 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Folsom

Pop. 76,375

🟡 Moderately Hard
115.5 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Foothill Farms

Pop. 33,121

🟠 Hard
121.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Foster City

Pop. 33,477

🟠 Hard
143 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Fountain Valley

Pop. 56,987

🟠 Hard
151.5 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Gardena

Pop. 60,447

🟡 Moderately Hard
72 mg/Lmixed

PFAS: 4 ppt

Full report →

Gilroy

Pop. 53,231

🟡 Moderately Hard
110.5 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Glendora

Pop. 52,009

🟠 Hard
129 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Goleta

Pop. 30,944

🟠 Hard
160 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Hacienda Heights

Unincorporated area

Pop. 54,038

🟡 Moderately Hard
116.5 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Hanford

Pop. 55,659

🟠 Hard
137 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Hawthorne

Pop. 88,451

🔴 Very Hard
180 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Hemet

Pop. 83,861

🟢 Soft
46 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Hesperia

Pop. 93,295

🟡 Moderately Hard
64.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Highland

Pop. 54,854

🟡 Moderately Hard
83.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Hollister

Pop. 37,462

🟡 Moderately Hard
118.5 mg/Lmixed

PFAS: 5.4 ppt

Full report →

Huntington Park

Pop. 59,430

🟢 Soft
36.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Indio

Pop. 87,533

🟡 Moderately Hard
84.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

La Habra

Pop. 62,131

🟢 Soft
38.5 mg/Lmixed

PFAS: 3 ppt

Full report →

La Jolla

Pop. 42,808

🟢 Soft
41 mg/Lmixed

PFAS: 3 ppt

Full report →

La Mesa

Pop. 60,089

🟢 Soft
44 mg/Lmixed

PFAS: 3.1 ppt

Full report →

La Mirada

Pop. 49,520

🟢 Soft
44 mg/Lmixed

PFAS: 3.1 ppt

Full report →

La Presa

Pop. 34,169

🟢 Soft
48.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

La Puente

Pop. 40,745

🟢 Soft
48 mg/Lmixed

PFAS: 3.3 ppt

Full report →

La Quinta

Pop. 40,476

🟢 Soft
50.5 mg/Lmixed

PFAS: 3.3 ppt

Full report →

La Verne

Pop. 32,681

🟢 Soft
52.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Laguna

Pop. 46,621

🟢 Soft
56.5 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Laguna Hills

Pop. 31,748

🟡 Moderately Hard
63.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Laguna Niguel

Pop. 65,806

🟡 Moderately Hard
65 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Lake Elsinore

Pop. 61,981

🟡 Moderately Hard
76 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Lake Forest

Pop. 82,492

🟡 Moderately Hard
76.5 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Lakewood

Pop. 81,611

🟡 Moderately Hard
98 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Lawndale

Pop. 33,430

🟠 Hard
145.5 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Lincoln

Pop. 49,757

🔴 Very Hard
191 mg/Lmixed

PFAS: 7.6 ppt

Full report →

Livermore

Pop. 88,126

🟡 Moderately Hard
93.5 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Lodi

Pop. 64,596

🟡 Moderately Hard
102.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Lompoc

Pop. 44,164

🟡 Moderately Hard
117.5 mg/Lmixed

PFAS: 5.4 ppt

Full report →

Los Altos

Pop. 30,671

🟠 Hard
150.5 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Los Banos

Pop. 37,457

🟠 Hard
159.5 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Los Gatos

Pop. 30,705

🟠 Hard
162 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Lynwood

Pop. 71,989

🟢 Soft
56.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Madera

Pop. 64,208

🟡 Moderately Hard
67 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Manhattan Beach

Pop. 35,818

🟡 Moderately Hard
102 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Manteca

Pop. 75,448

🟡 Moderately Hard
103.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Martinez

Pop. 38,137

🟠 Hard
147.5 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Menifee

Pop. 87,174

🟡 Moderately Hard
74 mg/Lmixed

PFAS: 4 ppt

Full report →

Menlo Park

Pop. 33,449

🟡 Moderately Hard
69 mg/Lmixed

PFAS: 4 ppt

Full report →

Merced

Pop. 82,436

🟡 Moderately Hard
73 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Mid-City

Pop. 83,000

🟡 Moderately Hard
97 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Milpitas

Pop. 77,604

🟠 Hard
140 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Mira Mesa

Pop. 70,000

🟠 Hard
156.5 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Mission District

Pop. 47,234

🟠 Hard
158.5 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Mission Viejo

Pop. 97,156

🟠 Hard
173 mg/Lmixed

PFAS: 6.9 ppt

Full report →

Monrovia

Pop. 37,463

🟢 Soft
34 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Montclair

Pop. 38,690

🟢 Soft
38.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Montebello

Pop. 63,921

🟢 Soft
43.5 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Monterey Park

Pop. 61,468

🟢 Soft
49 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Moorpark

Pop. 36,104

🟡 Moderately Hard
63.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Morgan Hill

Pop. 42,948

🟡 Moderately Hard
67.5 mg/Lmixed

PFAS: 4 ppt

Full report →

Mountain View

Pop. 80,435

🟡 Moderately Hard
112.5 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Napa

Pop. 80,434

🟠 Hard
151.5 mg/Lmixed

PFAS: 6.4 ppt

Full report →

National City

Pop. 61,060

🟠 Hard
164.5 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Newark

Pop. 45,336

🟢 Soft
32.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Newport Beach

Pop. 87,127

🟢 Soft
43 mg/Lmixed

PFAS: 3.1 ppt

Full report →

North Highlands

Unincorporated area

Pop. 42,694

🟡 Moderately Hard
86.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

North Hills

Neighborhood · Los Angeles

Pop. 56,946

🟠 Hard
172 mg/Lmixed

PFAS: 6.9 ppt

Full report →

North Hollywood

Neighborhood · Los Angeles

Pop. 64,587

🟡 Moderately Hard
91 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Northridge

Pop. 68,469

🟡 Moderately Hard
112 mg/Lmixed

PFAS: 5.1 ppt

Full report →

Novato

Pop. 55,530

🟡 Moderately Hard
110.5 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Oakley

Pop. 39,813

🟠 Hard
145 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Oildale

Pop. 32,684

🟠 Hard
168 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Orangevale

Pop. 33,960

🟢 Soft
45 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Pacifica

Pop. 39,260

🟡 Moderately Hard
98 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Palm Desert

Pop. 51,869

🟡 Moderately Hard
118.5 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Palm Springs

Pop. 47,371

🟠 Hard
121 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Palo Alto

Pop. 66,853

🟡 Moderately Hard
119 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Paramount

Pop. 55,412

🟠 Hard
147 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Perris

Pop. 74,971

🟢 Soft
50 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Petaluma

Pop. 60,438

🟢 Soft
48.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Pico Rivera

Pop. 64,218

🟡 Moderately Hard
71 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Pittsburg

Pop. 69,424

🟠 Hard
128 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Placentia

Pop. 52,495

🟠 Hard
137 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Pleasant Hill

Pop. 34,810

🟠 Hard
144 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Pleasanton

Pop. 79,510

🟠 Hard
148 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Porterville

Pop. 56,058

🟢 Soft
31.5 mg/Lmixed

PFAS: 2.8 ppt

Full report →

Poway

Pop. 50,157

🟢 Soft
48 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Rancho Cordova

Pop. 71,017

🟠 Hard
122.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Rancho Palos Verdes

Pop. 42,732

🟠 Hard
132 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Rancho Penasquitos

Pop. 60,000

🟠 Hard
133.5 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Rancho Santa Margarita

Pop. 49,324

🟠 Hard
136 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Redding

Pop. 91,582

🔴 Very Hard
186 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Redlands

Pop. 71,035

🟠 Hard
179 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Redondo Beach

Pop. 68,166

🟠 Hard
179.5 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Redwood City

Pop. 85,288

🟠 Hard
178 mg/Lmixed

PFAS: 7.2 ppt

Full report →

Reseda

Pop. 65,000

🟢 Soft
38.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Rocklin

Pop. 61,213

🟡 Moderately Hard
109.5 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Rohnert Park

Pop. 42,407

🟠 Hard
123.5 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Rosemead

Pop. 54,908

🟠 Hard
148.5 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Rowland Heights

Unincorporated area

Pop. 48,993

🟠 Hard
165 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Rubidoux

Pop. 34,280

🟠 Hard
171 mg/Lmixed

PFAS: 6.8 ppt

Full report →

San Bruno

Pop. 43,185

🟠 Hard
162 mg/Lmixed

PFAS: 6.8 ppt

Full report →

San Clemente

Pop. 65,526

🟠 Hard
171 mg/Lmixed

PFAS: 6.8 ppt

Full report →

San Dimas

Pop. 34,630

🟠 Hard
177 mg/Lmixed

PFAS: 7 ppt

Full report →

San Gabriel

Pop. 40,424

🔴 Very Hard
185.5 mg/Lmixed

PFAS: 7.3 ppt

Full report →

San Jacinto

Pop. 46,951

🔴 Very Hard
190.5 mg/Lmixed

PFAS: 7.4 ppt

Full report →

San Juan Capistrano

Pop. 36,454

🟢 Soft
34 mg/Lmixed

PFAS: 2.8 ppt

Full report →

San Leandro

Pop. 90,712

🟢 Soft
30.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

San Luis Obispo

Pop. 47,339

🟢 Soft
36.5 mg/Lmixed

PFAS: 3 ppt

Full report →

San Marcos

Pop. 92,931

🟢 Soft
43.5 mg/Lmixed

PFAS: 3.1 ppt

Full report →

San Pablo

Pop. 30,407

🟢 Soft
46 mg/Lmixed

PFAS: 3.4 ppt

Full report →

San Pedro

Pop. 83,556

🟢 Soft
52.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

San Rafael

Pop. 59,162

🟢 Soft
49.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

San Ramon

Pop. 76,134

🟢 Soft
52 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Santa Barbara

Pop. 91,842

🟡 Moderately Hard
77.5 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Santa Cruz

Pop. 64,220

🟡 Moderately Hard
81 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Santa Monica

Pop. 93,220

🟡 Moderately Hard
96 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Santa Paula

Pop. 30,546

🟡 Moderately Hard
97 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Santee

Pop. 57,787

🟡 Moderately Hard
111.5 mg/Lmixed

PFAS: 5.1 ppt

Full report →

Saratoga

Pop. 30,968

🟡 Moderately Hard
109 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Sawtelle

Pop. 39,757

🟠 Hard
127 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Seaside

Pop. 33,025

🟠 Hard
150.5 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Sherman Oaks

Pop. 52,677

🟡 Moderately Hard
61 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Silver Lake

Pop. 32,890

🟢 Soft
52.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

South Gate

Pop. 96,401

🟢 Soft
47 mg/Lmixed

PFAS: 3.2 ppt

Full report →

South San Francisco

Pop. 67,271

🟢 Soft
52 mg/Lmixed

PFAS: 3.5 ppt

Full report →

South Whittier

Unincorporated area

Pop. 57,156

🟡 Moderately Hard
62.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Stanton

Pop. 38,872

🟡 Moderately Hard
113 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Studio City

Pop. 34,034

🟠 Hard
164 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Sylmar

Pop. 79,614

🟡 Moderately Hard
85 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Temple City

Pop. 36,365

🟠 Hard
129 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Tracy

Pop. 87,075

🟡 Moderately Hard
70.5 mg/Lmixed

PFAS: 4 ppt

Full report →

Tulare

Pop. 62,315

🟡 Moderately Hard
110.5 mg/Lmixed

PFAS: 5.1 ppt

Full report →

Turlock

Pop. 72,292

🟠 Hard
124 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Tustin

Pop. 80,583

🟠 Hard
134 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Union City

Pop. 74,494

🟠 Hard
156.5 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Upland

Pop. 76,443

🔴 Very Hard
185 mg/Lmixed

PFAS: 7.2 ppt

Full report →

Vacaville

Pop. 96,803

🟢 Soft
35 mg/Lmixed

PFAS: 3 ppt

Full report →

Valley Glen

Pop. 60,000

🟡 Moderately Hard
106.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Venice

Pop. 40,885

🟡 Moderately Hard
78.5 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Ventura

Pop. 96,769

🟡 Moderately Hard
80 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Vermont Square

Pop. 47,555

🟡 Moderately Hard
96 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Walnut

Pop. 30,237

🟠 Hard
151.5 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Walnut Creek

Pop. 68,910

🟠 Hard
147 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Watsonville

Pop. 53,628

🔴 Very Hard
182 mg/Lmixed

PFAS: 7.3 ppt

Full report →

West Hills

Neighborhood · Los Angeles

Pop. 41,426

🟡 Moderately Hard
88.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

West Hollywood

Pop. 36,222

🟢 Soft
56.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

West Sacramento

Pop. 52,721

🟡 Moderately Hard
61 mg/Lmixed

PFAS: 3.8 ppt

Full report →

Westminster

Pop. 92,114

🟡 Moderately Hard
78 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Westmont

Pop. 31,853

🟡 Moderately Hard
79.5 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Whittier

Pop. 87,438

🟡 Moderately Hard
119.5 mg/Lmixed

PFAS: 5.4 ppt

Full report →

Wildomar

Pop. 35,632

🟠 Hard
133.5 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Willowbrook

Pop. 35,983

🟠 Hard
164.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Wilmington

Pop. 52,000

🟠 Hard
166.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Winnetka

Pop. 47,000

🔴 Very Hard
185 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Woodland

Pop. 58,567

🟢 Soft
38 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Woodland Hills

Pop. 70,000

🟢 Soft
42.5 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Yorba Linda

Pop. 67,973

🟡 Moderately Hard
73 mg/Lmixed

PFAS: 4 ppt

Full report →

Yuba City

Pop. 66,941

🟡 Moderately Hard
75.5 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Yucaipa

Pop. 53,328

🟡 Moderately Hard
83 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Agoura

Pop. 20,537

🟢 Soft
32 mg/Lmixed

PFAS: 2.8 ppt

Full report →

Agoura Hills

Pop. 20,915

🟢 Soft
32.5 mg/Lmixed

PFAS: 2.8 ppt

Full report →

Agua Caliente

Pop. 27,090

🟢 Soft
29 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Alamo

Pop. 14,570

🟢 Soft
43.5 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Albany

Pop. 19,735

🟢 Soft
47 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Alpine

Pop. 14,236

🟡 Moderately Hard
89 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Alum Rock

Pop. 15,536

🟡 Moderately Hard
93 mg/Lmixed

PFAS: 4.7 ppt

Full report →

American Canyon

Pop. 20,554

🟡 Moderately Hard
100.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Arcata

Pop. 17,843

🟠 Hard
127.5 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Arroyo Grande

Pop. 18,108

🟠 Hard
173.5 mg/Lmixed

PFAS: 7 ppt

Full report →

Artesia

Pop. 16,961

🔴 Very Hard
180.5 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Arvin

Pop. 20,876

🔴 Very Hard
182 mg/Lmixed

PFAS: 7.2 ppt

Full report →

Ashland

Pop. 21,925

🔴 Very Hard
185 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Atascadero

Pop. 29,819

🔴 Very Hard
193 mg/Lmixed

PFAS: 7.6 ppt

Full report →

Atwater

Pop. 29,237

🟢 Soft
33.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Atwater Village

Pop. 15,455

🟢 Soft
36.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Auburn

Pop. 13,776

🟢 Soft
35 mg/Lmixed

PFAS: 3 ppt

Full report →

Avenal

Pop. 13,301

🟢 Soft
43 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Avocado Heights

Pop. 15,411

🟢 Soft
48.5 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Barstow

Pop. 23,692

🟡 Moderately Hard
108.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Barstow Heights

Pop. 24,202

🟡 Moderately Hard
109 mg/Lmixed

PFAS: 5 ppt

Full report →

Bay Point

Pop. 21,534

🟡 Moderately Hard
119.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Bayside

Pop. 17,132

🟠 Hard
150.5 mg/Lmixed

PFAS: 6.5 ppt

Full report →

Belmont

Pop. 27,218

🟠 Hard
176 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Benicia

Pop. 28,167

🔴 Very Hard
182 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Big Bear City

Pop. 12,304

🟡 Moderately Hard
62.5 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Bloomington

Pop. 23,851

🟠 Hard
142 mg/Lmixed

PFAS: 6 ppt

Full report →

Blythe

Pop. 19,208

🟠 Hard
161 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Bonita

Pop. 12,538

🟠 Hard
177 mg/Lmixed

PFAS: 7 ppt

Full report →

Bostonia

Pop. 15,379

🔴 Very Hard
191 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Brawley

Pop. 25,897

🟢 Soft
53.5 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Calabasas

Pop. 23,058

🟠 Hard
179 mg/Lmixed

PFAS: 7.1 ppt

Full report →

California City

Pop. 13,277

🔴 Very Hard
189.5 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Cameron Park

Pop. 18,228

🟢 Soft
55.5 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Carpinteria

Pop. 13,727

🟠 Hard
130 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Casa de Oro-Mount Helix

Pop. 18,762

🟡 Moderately Hard
77.5 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Castaic

Pop. 19,015

🟠 Hard
155 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Cherryland

Pop. 14,728

🟡 Moderately Hard
75 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Chowchilla

Pop. 18,510

🟡 Moderately Hard
107.5 mg/Lmixed

PFAS: 5.1 ppt

Full report →

Clearlake

Pop. 15,182

🔴 Very Hard
184 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Coalinga

Pop. 16,564

🟢 Soft
40.5 mg/Lmixed

PFAS: 3.1 ppt

Full report →

Commerce

Pop. 13,081

🟡 Moderately Hard
90 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Corcoran

Pop. 22,477

🟠 Hard
127 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Coronado

Pop. 24,812

🟠 Hard
138 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Coto De Caza

Pop. 14,866

🟠 Hard
151 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Cudahy

Pop. 24,311

🟡 Moderately Hard
61 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Desert Hot Springs

Pop. 28,335

🟠 Hard
168.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Dinuba

Pop. 23,702

🔴 Very Hard
194.5 mg/Lmixed

PFAS: 7.6 ppt

Full report →

Discovery Bay

Pop. 13,352

🟢 Soft
29 mg/Lmixed

PFAS: 2.8 ppt

Full report →

Dixon

Pop. 19,390

🟢 Soft
35.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Duarte

Pop. 21,990

🟡 Moderately Hard
94 mg/Lmixed

PFAS: 4.6 ppt

Full report →

East Hemet

Pop. 17,418

🟠 Hard
146 mg/Lmixed

PFAS: 6.1 ppt

Full report →

East Palo Alto

Pop. 29,662

🟠 Hard
145 mg/Lmixed

PFAS: 6.2 ppt

Full report →

East Rancho Dominguez

Pop. 15,135

🟠 Hard
136.5 mg/Lmixed

PFAS: 5.8 ppt

Full report →

East San Gabriel

Pop. 14,874

🟠 Hard
152.5 mg/Lmixed

PFAS: 6.3 ppt

Full report →

El Camino Real

Pop. 15,999

🟠 Hard
145.5 mg/Lmixed

PFAS: 6.1 ppt

Full report →

El Cerrito

Pop. 23,549

🔴 Very Hard
182.5 mg/Lmixed

PFAS: 7.3 ppt

Full report →

El Segundo

Pop. 17,037

🟢 Soft
38 mg/Lmixed

PFAS: 3 ppt

Full report →

El Sobrante

Pop. 12,669

🟢 Soft
35 mg/Lmixed

PFAS: 3 ppt

Full report →

Eureka

Pop. 27,017

🟡 Moderately Hard
81.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Fillmore

Pop. 15,548

🟡 Moderately Hard
90 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Galt

Pop. 25,303

🟡 Moderately Hard
60.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Glen Avon

Pop. 20,199

🟠 Hard
124 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Grand Terrace

Pop. 12,464

🔴 Very Hard
196.5 mg/Lmixed

PFAS: 7.6 ppt

Full report →

Granite Bay

Pop. 20,402

🟢 Soft
30 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Grass Valley

Pop. 12,944

🟢 Soft
46 mg/Lmixed

PFAS: 3.3 ppt

Full report →

Greenfield

Pop. 17,184

🟡 Moderately Hard
71 mg/Lmixed

PFAS: 4 ppt

Full report →

Grover Beach

Pop. 13,600

🟡 Moderately Hard
96 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Half Moon Bay

Pop. 12,657

🟡 Moderately Hard
118.5 mg/Lmixed

PFAS: 5.5 ppt

Full report →

Hawaiian Gardens

Pop. 14,592

🟠 Hard
177.5 mg/Lmixed

PFAS: 7 ppt

Full report →

Hercules

Pop. 25,314

🟢 Soft
50.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Hermosa Beach

Pop. 19,860

🟡 Moderately Hard
60 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Imperial

Pop. 17,095

🟡 Moderately Hard
60 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Imperial Beach

Pop. 27,408

🟢 Soft
58.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Isla Vista

Pop. 23,096

🟡 Moderately Hard
106.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Jurupa Valley

Pop. 21,930

🟠 Hard
156 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Kerman

Pop. 14,475

🟠 Hard
136 mg/Lmixed

PFAS: 5.9 ppt

Full report →

King City

Pop. 13,902

🟠 Hard
153.5 mg/Lmixed

PFAS: 6.5 ppt

Full report →

La Canada Flintridge

Pop. 20,246

🟢 Soft
34.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

La Crescenta-Montrose

Pop. 19,653

🟡 Moderately Hard
109.5 mg/Lmixed

PFAS: 5.1 ppt

Full report →

La Palma

Pop. 15,904

🟢 Soft
45 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Ladera Ranch

Pop. 22,980

🟢 Soft
56.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Lafayette

Pop. 25,843

🟢 Soft
53 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Laguna Beach

Pop. 23,365

🟡 Moderately Hard
61.5 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Laguna Woods

Pop. 16,406

🟡 Moderately Hard
67.5 mg/Lmixed

PFAS: 3.8 ppt

Full report →

Lake Arrowhead

Pop. 12,424

🟡 Moderately Hard
71 mg/Lmixed

PFAS: 3.9 ppt

Full report →

Lake Los Angeles

Pop. 12,328

🟡 Moderately Hard
80 mg/Lmixed

PFAS: 4.2 ppt

Full report →

Lakeside

Pop. 20,648

🟡 Moderately Hard
94.5 mg/Lmixed

PFAS: 4.6 ppt

Full report →

Lamont

Pop. 15,120

🟡 Moderately Hard
101 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Larkspur

Pop. 12,417

🟡 Moderately Hard
109 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Lathrop

Pop. 20,866

🟠 Hard
130.5 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Lemon Grove

Pop. 26,709

🟠 Hard
165.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Lemoore

Pop. 25,647

🟠 Hard
163.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Lennox

Pop. 22,753

🟠 Hard
166.5 mg/Lmixed

PFAS: 6.7 ppt

Full report →

Linda

Pop. 17,773

🟢 Soft
36 mg/Lmixed

PFAS: 3 ppt

Full report →

Lindsay

Pop. 13,217

🟢 Soft
43.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Live Oak

Pop. 17,158

🟡 Moderately Hard
85.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Livingston

Pop. 13,902

🟡 Moderately Hard
94 mg/Lmixed

PFAS: 4.7 ppt

Full report →

Loma Linda

Pop. 24,045

🟡 Moderately Hard
115.5 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Lomita

Pop. 20,785

🟡 Moderately Hard
119 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Los Osos

Pop. 14,276

🟠 Hard
166.5 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Malibu

Pop. 12,965

🟡 Moderately Hard
90 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Marina

Pop. 21,229

🟠 Hard
124 mg/Lmixed

PFAS: 5.6 ppt

Full report →

Maywood

Pop. 27,888

🟠 Hard
177 mg/Lmixed

PFAS: 7 ppt

Full report →

McFarland

Pop. 13,985

🔴 Very Hard
193 mg/Lmixed

PFAS: 7.5 ppt

Full report →

McKinleyville

Pop. 15,177

🟢 Soft
31.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Mead Valley

Pop. 18,510

🟢 Soft
52 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Mill Valley

Pop. 14,394

🟠 Hard
126 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Millbrae

Pop. 22,795

🟠 Hard
126.5 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Monterey

Pop. 28,338

🟢 Soft
41.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Moraga

Pop. 17,256

🟡 Moderately Hard
60.5 mg/Lmixed

PFAS: 3.8 ppt

Full report →

Nipomo

Pop. 16,714

🟢 Soft
53 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Noe Valley

Pop. 22,893

🔴 Very Hard
186 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Norco

Pop. 26,289

🟡 Moderately Hard
63 mg/Lmixed

PFAS: 3.7 ppt

Full report →

North Auburn

Pop. 13,022

🟡 Moderately Hard
63 mg/Lmixed

PFAS: 3.8 ppt

Full report →

North Fair Oaks

Pop. 14,687

🟡 Moderately Hard
69.5 mg/Lmixed

PFAS: 4 ppt

Full report →

North Tustin

Unincorporated area

Pop. 24,917

🟠 Hard
134 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Northwood

Pop. 22,218

🟠 Hard
146 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Oak Park

Pop. 13,811

🟠 Hard
138.5 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Oakdale

Pop. 22,259

🟠 Hard
142 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Olivehurst

Pop. 13,656

🔴 Very Hard
190 mg/Lmixed

PFAS: 7.5 ppt

Full report →

Orcutt

Pop. 28,905

🟢 Soft
48.5 mg/Lmixed

PFAS: 3.4 ppt

Full report →

Orinda

Pop. 19,279

🟢 Soft
51 mg/Lmixed

PFAS: 3.5 ppt

Full report →

Oroville

Pop. 16,260

🟢 Soft
57 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Pacific Grove

Pop. 15,674

🟡 Moderately Hard
99.5 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Pacific Palisades

Pop. 23,121

🟡 Moderately Hard
100 mg/Lmixed

PFAS: 4.8 ppt

Full report →

Palos Verdes Estates

Pop. 13,682

🟠 Hard
132.5 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Paradise

Pop. 26,476

🟠 Hard
136 mg/Lmixed

PFAS: 6 ppt

Full report →

Parkside

Pop. 16,874

🔴 Very Hard
184.5 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Parkway

Pop. 14,670

🟠 Hard
155.5 mg/Lmixed

PFAS: 6.5 ppt

Full report →

Parlier

Pop. 15,138

🟠 Hard
159 mg/Lmixed

PFAS: 6.6 ppt

Full report →

Paso Robles

Pop. 27,157

🟠 Hard
165 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Patterson

Pop. 21,498

🟠 Hard
169.5 mg/Lmixed

PFAS: 6.9 ppt

Full report →

Pedley

Pop. 12,672

🔴 Very Hard
191.5 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Phelan

Pop. 14,304

🟡 Moderately Hard
63 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Pinole

Pop. 19,269

🟡 Moderately Hard
110 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Port Hueneme

Pop. 22,423

🔴 Very Hard
187 mg/Lmixed

PFAS: 7.4 ppt

Full report →

Prunedale

Pop. 17,560

🟡 Moderately Hard
67 mg/Lmixed

PFAS: 4 ppt

Full report →

Ramona

Pop. 20,292

🟡 Moderately Hard
118.5 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Rancho Mirage

Pop. 18,083

🟠 Hard
133 mg/Lmixed

PFAS: 5.7 ppt

Full report →

Rancho San Diego

Pop. 21,208

🟠 Hard
135 mg/Lmixed

PFAS: 5.8 ppt

Full report →

Red Bluff

Pop. 14,131

🔴 Very Hard
180 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Reedley

Pop. 25,569

🔴 Very Hard
191 mg/Lmixed

PFAS: 7.5 ppt

Full report →

Ridgecrest

Pop. 28,780

🟡 Moderately Hard
61.5 mg/Lmixed

PFAS: 3.6 ppt

Full report →

Rio Linda

Pop. 15,106

🟡 Moderately Hard
69 mg/Lmixed

PFAS: 4 ppt

Full report →

Ripon

Pop. 15,151

🟡 Moderately Hard
73 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Riverbank

Pop. 24,122

🟡 Moderately Hard
79.5 mg/Lmixed

PFAS: 4.3 ppt

Full report →

Rosamond

Pop. 18,150

🟠 Hard
140 mg/Lmixed

PFAS: 5.9 ppt

Full report →

Rosedale

Pop. 14,058

🟠 Hard
145.5 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Rosemont

Pop. 22,681

🟠 Hard
144.5 mg/Lmixed

PFAS: 6.2 ppt

Full report →

Salida

Pop. 13,722

🟠 Hard
134.5 mg/Lmixed

PFAS: 5.9 ppt

Full report →

San Anselmo

Pop. 12,653

🟠 Hard
153.5 mg/Lmixed

PFAS: 6.5 ppt

Full report →

San Carlos

Pop. 29,931

🟠 Hard
163 mg/Lmixed

PFAS: 6.8 ppt

Full report →

San Fernando

Pop. 24,931

🟠 Hard
179.5 mg/Lmixed

PFAS: 7.1 ppt

Full report →

San Lorenzo

Pop. 23,452

🟢 Soft
32 mg/Lmixed

PFAS: 2.9 ppt

Full report →

San Marino

Pop. 13,464

🟢 Soft
44.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Sanger

Pop. 24,950

🟡 Moderately Hard
72.5 mg/Lmixed

PFAS: 4 ppt

Full report →

Santa Fe Springs

Pop. 18,026

🟡 Moderately Hard
91 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Seal Beach

Pop. 24,619

🟠 Hard
152 mg/Lmixed

PFAS: 6.3 ppt

Full report →

Selma

Pop. 24,414

🟠 Hard
165.5 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Shadow Hills

Pop. 13,000

🟢 Soft
33.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Shafter

Pop. 18,336

🟢 Soft
34 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Solana Beach

Pop. 13,449

🟠 Hard
172.5 mg/Lmixed

PFAS: 6.9 ppt

Full report →

Soledad

Pop. 25,003

🟠 Hard
170.5 mg/Lmixed

PFAS: 7 ppt

Full report →

South El Monte

Pop. 20,878

🟢 Soft
33 mg/Lmixed

PFAS: 2.8 ppt

Full report →

South Lake Tahoe

Pop. 21,706

🟢 Soft
49 mg/Lmixed

PFAS: 3.4 ppt

Full report →

South Pasadena

Pop. 26,151

🟢 Soft
54.5 mg/Lmixed

PFAS: 3.5 ppt

Full report →

South San Jose Hills

Pop. 20,551

🟢 Soft
58.5 mg/Lmixed

PFAS: 3.6 ppt

Full report →

South Yuba City

Pop. 15,217

🟢 Soft
58.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

Spring Valley

Pop. 28,205

🟡 Moderately Hard
91.5 mg/Lmixed

PFAS: 4.5 ppt

Full report →

Stanford

Pop. 13,809

🟡 Moderately Hard
103.5 mg/Lmixed

PFAS: 5 ppt

Full report →

Stevenson Ranch

Pop. 17,557

🟡 Moderately Hard
75 mg/Lmixed

PFAS: 4.1 ppt

Full report →

Stonegate

Pop. 18,938

🟠 Hard
145.5 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Suisun

Pop. 28,111

🟠 Hard
171.5 mg/Lmixed

PFAS: 7 ppt

Full report →

Sun City

Pop. 19,579

🔴 Very Hard
195 mg/Lmixed

PFAS: 7.5 ppt

Full report →

Sunland

Pop. 15,316

🟢 Soft
33.5 mg/Lmixed

PFAS: 2.9 ppt

Full report →

Susanville

Pop. 15,247

🟠 Hard
166.5 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Tehachapi

Pop. 13,021

🟡 Moderately Hard
118 mg/Lmixed

PFAS: 5.3 ppt

Full report →

Truckee

Pop. 16,299

🟡 Moderately Hard
103 mg/Lmixed

PFAS: 4.9 ppt

Full report →

Tujunga

Pop. 26,527

🟡 Moderately Hard
111 mg/Lmixed

PFAS: 5.1 ppt

Full report →

Tustin Legacy

Pop. 21,428

🟠 Hard
146.5 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Twentynine Palms

Pop. 26,025

🟠 Hard
141 mg/Lmixed

PFAS: 5.9 ppt

Full report →

UC Irvine

Pop. 15,807

🟠 Hard
145 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Ukiah

Pop. 15,917

🟠 Hard
150 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Valinda

Pop. 22,822

🟢 Soft
46.5 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Valle Vista

Pop. 14,578

🟢 Soft
49 mg/Lmixed

PFAS: 3.2 ppt

Full report →

Vincent

Pop. 15,922

🟡 Moderately Hard
116 mg/Lmixed

PFAS: 5.2 ppt

Full report →

Vincent

Pop. 15,922

🟠 Hard
167.5 mg/Lmixed

PFAS: 6.8 ppt

Full report →

Vineyard

Pop. 24,836

🟡 Moderately Hard
82 mg/Lmixed

PFAS: 4.4 ppt

Full report →

Visitacion Valley

Pop. 22,534

🔴 Very Hard
186 mg/Lmixed

PFAS: 7.5 ppt

Full report →

Walnut Park

Pop. 15,966

🟠 Hard
154.5 mg/Lmixed

PFAS: 6.4 ppt

Full report →

Wasco

Pop. 26,279

🟡 Moderately Hard
79.5 mg/Lmixed

PFAS: 4.2 ppt

Full report →

West Carson

Pop. 21,699

🟢 Soft
46 mg/Lmixed

PFAS: 3.2 ppt

Full report →

West Puente Valley

Pop. 22,636

🟡 Moderately Hard
64.5 mg/Lmixed

PFAS: 3.7 ppt

Full report →

West Whittier-Los Nietos

Unincorporated area

Pop. 25,540

🟠 Hard
171 mg/Lmixed

PFAS: 6.9 ppt

Full report →

Westpark

Pop. 22,993

🟠 Hard
145 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Windsor

Pop. 27,464

🟠 Hard
174 mg/Lmixed

PFAS: 7.1 ppt

Full report →

Winter Gardens

Pop. 20,631

🔴 Very Hard
189 mg/Lmixed

PFAS: 7.3 ppt

Full report →

Woodbridge

Pop. 24,966

🟠 Hard
145 mg/Lmixed

PFAS: 6.1 ppt

Full report →

Woodcrest

Pop. 14,347

🟢 Soft
40.5 mg/Lmixed

PFAS: 3 ppt

Full report →

Yucca Valley

Pop. 21,600

🟡 Moderately Hard
86 mg/Lmixed

PFAS: 4.3 ppt

Full report →