Water reservoir supplying US municipal drinking water systems

Water Quality by City

Hardness levels, contaminant data, and treatment recommendations for 1000 cities across 51 states.

1000
Cities
51
States
138
Avg Hardness (PPM)

Alaska

Anchorage

35 PPM · Slightly Hard

Wasilla

25 PPM · Slightly Hard

Palmer

22 PPM · Slightly Hard

Kenai

20 PPM · Slightly Hard

Fairbanks

17 PPM · Slightly Hard

Juneau

16 PPM · Soft

Anchorage South

15 PPM · Soft

Sitka

8 PPM · Soft

Alabama

Huntsville

130 PPM · Hard

Madison

125 PPM · Hard

Florence

120 PPM · Hard

Hoover

93 PPM · Moderately Hard

Tuscaloosa

72 PPM · Moderately Hard

Mobile

69 PPM · Moderately Hard

Dothan

61 PPM · Moderately Hard

Decatur

58 PPM · Slightly Hard

Vestavia Hills

55 PPM · Slightly Hard

Birmingham

50 PPM · Slightly Hard

Prattville

45 PPM · Slightly Hard

Montgomery

41 PPM · Slightly Hard

Auburn

35 PPM · Slightly Hard

Phenix City

30 PPM · Slightly Hard

Arkansas

Fayetteville

98 PPM · Moderately Hard

Benton

90 PPM · Moderately Hard

Rogers

85 PPM · Moderately Hard

Bentonville

80 PPM · Moderately Hard

Springdale

64 PPM · Moderately Hard

Jonesboro

49 PPM · Slightly Hard

Fort Smith

41 PPM · Slightly Hard

Conway

30 PPM · Slightly Hard

Little Rock West

30 PPM · Slightly Hard

Cabot

28 PPM · Slightly Hard

North Little Rock

25 PPM · Slightly Hard

Little Rock

24 PPM · Slightly Hard

Pine Bluff

22 PPM · Slightly Hard

Arizona

Mesa

300 PPM · Extremely Hard

Chandler

300 PPM · Extremely Hard

Fountain Hills

300 PPM · Extremely Hard

Tempe

299 PPM · Extremely Hard

Queen Creek

295 PPM · Extremely Hard

Glendale

294 PPM · Extremely Hard

Goodyear

291 PPM · Extremely Hard

Maricopa

291 PPM · Extremely Hard

San Tan Valley

290 PPM · Extremely Hard

Tucson

288 PPM · Extremely Hard

Avondale

288 PPM · Extremely Hard

Casa Grande

285 PPM · Extremely Hard

Bullhead City

280 PPM · Extremely Hard

Gilbert

277 PPM · Extremely Hard

Lake Havasu City

270 PPM · Extremely Hard

Yuma

264 PPM · Extremely Hard

Surprise

258 PPM · Extremely Hard

Scottsdale

250 PPM · Extremely Hard

Peoria West

240 PPM · Very Hard

Peoria

235 PPM · Very Hard

Chandler South

235 PPM · Very Hard

Phoenix

220 PPM · Very Hard

Sierra Vista

170 PPM · Hard

Prescott

135 PPM · Hard

Flagstaff

70 PPM · Moderately Hard

California

Encinitas

300 PPM · Extremely Hard

Camarillo

280 PPM · Extremely Hard

Rancho Cucamonga South

280 PPM · Extremely Hard

Irvine South

280 PPM · Extremely Hard

Lake Forest

280 PPM · Extremely Hard

Rancho Santa Margarita

280 PPM · Extremely Hard

Gilroy

280 PPM · Extremely Hard

Irvine North

270 PPM · Extremely Hard

La Jolla

270 PPM · Extremely Hard

Lancaster

265 PPM · Extremely Hard

Anaheim Hills

260 PPM · Extremely Hard

Palmdale

250 PPM · Extremely Hard

Glendale

250 PPM · Extremely Hard

Simi Valley

250 PPM · Extremely Hard

La Mirada

240 PPM · Very Hard

Bell

230 PPM · Very Hard

Monterey

230 PPM · Very Hard

Sunnyvale

222 PPM · Very Hard

Temecula

220 PPM · Very Hard

Norwalk South

220 PPM · Very Hard

Chula Vista

216 PPM · Very Hard

Concord

215 PPM · Very Hard

Hayward

214 PPM · Very Hard

Carlsbad

210 PPM · Very Hard

Chatsworth

210 PPM · Very Hard

Fontana

208 PPM · Very Hard

Vista

205 PPM · Very Hard

Long Beach

204 PPM · Very Hard

Moreno Valley

204 PPM · Very Hard

Garden Grove

204 PPM · Very Hard

Torrance

203 PPM · Very Hard

San Marcos

202 PPM · Very Hard

Anaheim

201 PPM · Very Hard

Escondido

201 PPM · Very Hard

San Diego

200 PPM · Very Hard

Riverside

200 PPM · Very Hard

Corona

200 PPM · Very Hard

Woodland Hills

200 PPM · Very Hard

El Monte

198 PPM · Very Hard

West Covina

195 PPM · Very Hard

Fremont

192 PPM · Very Hard

Rancho Cucamonga

192 PPM · Very Hard

Norwalk

192 PPM · Very Hard

San Bernardino

190 PPM · Very Hard

Downey

190 PPM · Very Hard

Carson

190 PPM · Very Hard

Valencia

190 PPM · Very Hard

Huntington Beach

189 PPM · Very Hard

Santa Clarita

188 PPM · Very Hard

South Gate

185 PPM · Very Hard

San Jose

183 PPM · Very Hard

Ontario

183 PPM · Very Hard

Pasadena

182 PPM · Very Hard

Los Angeles

180 PPM · Very Hard

Pomona

180 PPM · Very Hard

Gardena

180 PPM · Very Hard

Torrance South

180 PPM · Very Hard

Redondo Beach

180 PPM · Very Hard

Santa Ana

178 PPM · Hard

Murrieta

177 PPM · Hard

Oxnard

175 PPM · Hard

Santa Maria

175 PPM · Hard

Irvine

173 PPM · Hard

Roseville

169 PPM · Hard

Elk Grove

154 PPM · Hard

Modesto

144 PPM · Hard

Visalia

141 PPM · Hard

Turlock

140 PPM · Hard

Manteca

135 PPM · Hard

Bakersfield

132 PPM · Hard

Fresno North

130 PPM · Hard

Milpitas

130 PPM · Hard

Stockton

129 PPM · Hard

Fresno

126 PPM · Hard

Vacaville

110 PPM · Moderately Hard

Newark

90 PPM · Moderately Hard

Santa Cruz Downtown

70 PPM · Moderately Hard

Santa Rosa

60 PPM · Moderately Hard

Dublin

60 PPM · Moderately Hard

Napa

45 PPM · Slightly Hard

Oakland

40 PPM · Slightly Hard

Redding

35 PPM · Slightly Hard

Folsom

35 PPM · Slightly Hard

Daly City

34 PPM · Slightly Hard

Santa Cruz

28 PPM · Slightly Hard

San Francisco

21 PPM · Slightly Hard

Sacramento

18 PPM · Slightly Hard

Colorado

Parker

210 PPM · Very Hard

Castle Rock

200 PPM · Very Hard

Brighton

160 PPM · Hard

Greeley

152 PPM · Hard

Lafayette

150 PPM · Hard

Aurora East

120 PPM · Hard

Fort Collins

105 PPM · Moderately Hard

Colorado Springs

101 PPM · Moderately Hard

Denver

90 PPM · Moderately Hard

Fort Collins South

90 PPM · Moderately Hard

Arvada

81 PPM · Moderately Hard

Thornton

78 PPM · Moderately Hard

Boulder

77 PPM · Moderately Hard

Centennial

75 PPM · Moderately Hard

Aurora

73 PPM · Moderately Hard

Lakewood

73 PPM · Moderately Hard

Pueblo

72 PPM · Moderately Hard

Loveland

72 PPM · Moderately Hard

Broomfield

70 PPM · Moderately Hard

Longmont

68 PPM · Moderately Hard

Westminster

66 PPM · Moderately Hard

Durango

45 PPM · Slightly Hard

Boulder North

40 PPM · Slightly Hard

Connecticut

Waterbury

55 PPM · Slightly Hard

Danbury

50 PPM · Slightly Hard

Hartford

48 PPM · Slightly Hard

Bridgeport

41 PPM · Slightly Hard

New Haven

34 PPM · Slightly Hard

Milford

28 PPM · Slightly Hard

Norwalk

25 PPM · Slightly Hard

Stamford

22 PPM · Slightly Hard

Greenwich

22 PPM · Slightly Hard

Meriden

20 PPM · Slightly Hard

Avon

20 PPM · Slightly Hard

West Hartford

18 PPM · Slightly Hard

Westport

18 PPM · Slightly Hard

DC

Washington

120 PPM · Hard

Delaware

Dover

52 PPM · Slightly Hard

Middletown

30 PPM · Slightly Hard

Smyrna

28 PPM · Slightly Hard

Newark

25 PPM · Slightly Hard

Wilmington

22 PPM · Slightly Hard

Florida

Leesburg

310 PPM · Extremely Hard

Sun City Center

310 PPM · Extremely Hard

Lake Worth

280 PPM · Extremely Hard

Miami Beach

280 PPM · Extremely Hard

St. Johns

280 PPM · Extremely Hard

Port St. Lucie West

280 PPM · Extremely Hard

Pinecrest

270 PPM · Extremely Hard

Miami

260 PPM · Extremely Hard

Deltona

260 PPM · Extremely Hard

Deerfield Beach

260 PPM · Extremely Hard

Fort Lauderdale Beach

260 PPM · Extremely Hard

Pembroke Pines West

260 PPM · Extremely Hard

Kissimmee

259 PPM · Extremely Hard

Palm Coast

255 PPM · Extremely Hard

Apopka

252 PPM · Extremely Hard

Jupiter

250 PPM · Extremely Hard

Tamarac

250 PPM · Extremely Hard

West Palm Beach

250 PPM · Extremely Hard

Ormond Beach

250 PPM · Extremely Hard

Boca Raton

249 PPM · Very Hard

Sanford

248 PPM · Very Hard

Coral Springs

247 PPM · Very Hard

Palm Bay

245 PPM · Very Hard

Doral

245 PPM · Very Hard

Boynton Beach

245 PPM · Very Hard

Gainesville

243 PPM · Very Hard

Cape Coral

242 PPM · Very Hard

Hollywood

241 PPM · Very Hard

Lakeland

241 PPM · Very Hard

Coconut Creek

240 PPM · Very Hard

Winter Haven

240 PPM · Very Hard

Fort Lauderdale

240 PPM · Very Hard

Siesta Key

240 PPM · Very Hard

Lauderhill

235 PPM · Very Hard

Port Orange

235 PPM · Very Hard

Margate

232 PPM · Very Hard

Sunrise

230 PPM · Very Hard

North Port

230 PPM · Very Hard

Palmetto

230 PPM · Very Hard

Miramar

227 PPM · Very Hard

Ocala

226 PPM · Very Hard

Clearwater

225 PPM · Very Hard

Naples

225 PPM · Very Hard

Plantation

225 PPM · Very Hard

Pembroke Pines

222 PPM · Very Hard

Largo

220 PPM · Very Hard

New Port Richey

220 PPM · Very Hard

Port St. Lucie

218 PPM · Very Hard

Sarasota

218 PPM · Very Hard

St. Petersburg

215 PPM · Very Hard

Daytona Beach

213 PPM · Very Hard

Pensacola

210 PPM · Very Hard

Downtown Orlando

210 PPM · Very Hard

Jacksonville

209 PPM · Very Hard

Tallahassee

207 PPM · Very Hard

Hialeah

204 PPM · Very Hard

Tampa

201 PPM · Very Hard

Orlando

200 PPM · Very Hard

Fort Myers

200 PPM · Very Hard

Celebration

200 PPM · Very Hard

Melbourne

197 PPM · Very Hard

Jacksonville Beach

190 PPM · Very Hard

South Tampa

180 PPM · Very Hard

Dunedin

160 PPM · Hard

Georgia

Sandy Springs

57 PPM · Slightly Hard

Augusta

46 PPM · Slightly Hard

Valdosta

42 PPM · Slightly Hard

Macon

40 PPM · Slightly Hard

Warner Robins

38 PPM · Slightly Hard

Athens

37 PPM · Slightly Hard

Roswell

37 PPM · Slightly Hard

Alpharetta

37 PPM · Slightly Hard

Savannah

36 PPM · Slightly Hard

Johns Creek

35 PPM · Slightly Hard

Smyrna

35 PPM · Slightly Hard

Perry

35 PPM · Slightly Hard

Brookhaven

34 PPM · Slightly Hard

Marietta

33 PPM · Slightly Hard

Columbus

32 PPM · Slightly Hard

Atlanta

30 PPM · Slightly Hard

Peachtree City

30 PPM · Slightly Hard

Suwanee

30 PPM · Slightly Hard

Lawrenceville

30 PPM · Slightly Hard

Duluth

28 PPM · Slightly Hard

Kennesaw

25 PPM · Slightly Hard

Buckhead

22 PPM · Slightly Hard

Atlanta Downtown

20 PPM · Slightly Hard

Gainesville

15 PPM · Soft

Columbus West

15 PPM · Soft

Hawaii

Honolulu

80 PPM · Moderately Hard

Pearl City

75 PPM · Moderately Hard

Kapolei

70 PPM · Moderately Hard

Kailua

65 PPM · Moderately Hard

Hilo

30 PPM · Slightly Hard

Kailua-Kona

30 PPM · Slightly Hard

Waikiki

20 PPM · Slightly Hard

Iowa

Council Bluffs

296 PPM · Extremely Hard

Dubuque

295 PPM · Extremely Hard

Cedar Rapids

284 PPM · Extremely Hard

Marion

280 PPM · Extremely Hard

Waterloo

254 PPM · Extremely Hard

Sioux City

245 PPM · Very Hard

Bettendorf

240 PPM · Very Hard

Davenport

236 PPM · Very Hard

Ankeny

205 PPM · Very Hard

Des Moines

200 PPM · Very Hard

West Des Moines

195 PPM · Very Hard

Iowa City

190 PPM · Very Hard

Ames

183 PPM · Very Hard

Idaho

Twin Falls

140 PPM · Hard

Boise

110 PPM · Moderately Hard

Idaho Falls

91 PPM · Moderately Hard

Pocatello

86 PPM · Moderately Hard

Meridian

82 PPM · Moderately Hard

Caldwell

70 PPM · Moderately Hard

Nampa

62 PPM · Moderately Hard

Eagle

55 PPM · Slightly Hard

Boise Downtown

50 PPM · Slightly Hard

Lewiston

35 PPM · Slightly Hard

Coeur d'Alene

25 PPM · Slightly Hard

Illinois

Yorkville

380 PPM · Extremely Hard

Washington

380 PPM · Extremely Hard

Bolingbrook

350 PPM · Extremely Hard

Plainfield

350 PPM · Extremely Hard

DeKalb South

340 PPM · Extremely Hard

Orland Park

320 PPM · Extremely Hard

Wheaton

310 PPM · Extremely Hard

Libertyville

310 PPM · Extremely Hard

Naperville South

310 PPM · Extremely Hard

Palatine

300 PPM · Extremely Hard

Arlington Heights

290 PPM · Extremely Hard

Bloomington

289 PPM · Extremely Hard

Champaign

285 PPM · Extremely Hard

Normal

285 PPM · Extremely Hard

Urbana

280 PPM · Extremely Hard

Joliet

279 PPM · Extremely Hard

DeKalb

270 PPM · Extremely Hard

Peoria

231 PPM · Very Hard

Springfield

227 PPM · Very Hard

Belleville

225 PPM · Very Hard

Naperville

220 PPM · Very Hard

Elgin

191 PPM · Very Hard

Decatur

191 PPM · Very Hard

Rockford

185 PPM · Very Hard

Schaumburg

175 PPM · Hard

Waukegan

165 PPM · Hard

Cicero

150 PPM · Hard

Oak Park

145 PPM · Hard

Chicago

140 PPM · Hard

Evanston

140 PPM · Hard

Oak Park South

140 PPM · Hard

Indiana

Carmel

296 PPM · Extremely Hard

Noblesville

290 PPM · Extremely Hard

Indianapolis

280 PPM · Extremely Hard

Indianapolis Downtown

280 PPM · Extremely Hard

South Bend

276 PPM · Extremely Hard

Greenwood

275 PPM · Extremely Hard

Fort Wayne

274 PPM · Extremely Hard

Kokomo

260 PPM · Extremely Hard

Anderson

255 PPM · Extremely Hard

Fishers

251 PPM · Extremely Hard

Muncie

250 PPM · Extremely Hard

Terre Haute

240 PPM · Very Hard

Lafayette

233 PPM · Very Hard

Jeffersonville

195 PPM · Very Hard

Hammond

171 PPM · Hard

Bloomington

140 PPM · Hard

Evansville

130 PPM · Hard

Kansas

Hutchinson

380 PPM · Extremely Hard

Garden City

320 PPM · Extremely Hard

Dodge City

315 PPM · Extremely Hard

Salina

310 PPM · Extremely Hard

Lawrence

309 PPM · Extremely Hard

Manhattan

302 PPM · Extremely Hard

Olathe

250 PPM · Extremely Hard

Lenexa

245 PPM · Very Hard

Overland Park

241 PPM · Very Hard

Shawnee

235 PPM · Very Hard

Wichita East

210 PPM · Very Hard

Topeka

209 PPM · Very Hard

Wichita

204 PPM · Very Hard

Kansas City

160 PPM · Hard

Kentucky

Georgetown

160 PPM · Hard

Bowling Green

158 PPM · Hard

Owensboro

157 PPM · Hard

Richmond

155 PPM · Hard

Elizabethtown

150 PPM · Hard

Lexington South

150 PPM · Hard

Florence

145 PPM · Hard

Covington

140 PPM · Hard

Louisville

130 PPM · Hard

Louisville Downtown

130 PPM · Hard

Lexington

124 PPM · Hard

Paducah

120 PPM · Hard

London

85 PPM · Moderately Hard

Louisiana

Thibodaux

180 PPM · Very Hard

Lafayette South

100 PPM · Moderately Hard

Baton Rouge

86 PPM · Moderately Hard

Kenner

85 PPM · Moderately Hard

Marrero

85 PPM · Moderately Hard

New Orleans

80 PPM · Moderately Hard

Metairie

80 PPM · Moderately Hard

Shreveport

79 PPM · Moderately Hard

Houma

75 PPM · Moderately Hard

Lake Charles

70 PPM · Moderately Hard

Lafayette

65 PPM · Moderately Hard

New Orleans Downtown

65 PPM · Moderately Hard

Slidell

60 PPM · Moderately Hard

New Orleans Uptown

60 PPM · Moderately Hard

Monroe

40 PPM · Slightly Hard

Massachusetts

Springfield

51 PPM · Slightly Hard

Worcester

38 PPM · Slightly Hard

Marlborough

30 PPM · Slightly Hard

Brockton

22 PPM · Slightly Hard

Lowell

20 PPM · Slightly Hard

Fall River

20 PPM · Slightly Hard

Plymouth

20 PPM · Slightly Hard

New Bedford

18 PPM · Slightly Hard

Lynn

16 PPM · Soft

Boston

15 PPM · Soft

Cambridge

15 PPM · Soft

Lawrence

15 PPM · Soft

Methuen

15 PPM · Soft

Quincy

14 PPM · Soft

Somerville

14 PPM · Soft

Newton

13 PPM · Soft

Everett

12 PPM · Soft

Pittsfield

12 PPM · Soft

Medford

12 PPM · Soft

Amherst

10 PPM · Soft

Gloucester

8 PPM · Soft

Maryland

Hagerstown

110 PPM · Moderately Hard

Gaithersburg

110 PPM · Moderately Hard

Bel Air

90 PPM · Moderately Hard

Glen Burnie

80 PPM · Moderately Hard

Cumberland

80 PPM · Moderately Hard

Frederick

69 PPM · Moderately Hard

Rockville

61 PPM · Moderately Hard

Baltimore

60 PPM · Moderately Hard

Germantown

58 PPM · Slightly Hard

Columbia

55 PPM · Slightly Hard

Silver Spring

55 PPM · Slightly Hard

Bowie

52 PPM · Slightly Hard

Waldorf

48 PPM · Slightly Hard

Annapolis

45 PPM · Slightly Hard

Salisbury

30 PPM · Slightly Hard

Maine

Bangor

44 PPM · Slightly Hard

Lewiston

37 PPM · Slightly Hard

Augusta

20 PPM · Slightly Hard

Auburn

18 PPM · Slightly Hard

Waterville

16 PPM · Soft

Biddeford

15 PPM · Soft

South Portland

12 PPM · Soft

Portland

10 PPM · Soft

Michigan

Howell

350 PPM · Extremely Hard

Grand Rapids Downtown

300 PPM · Extremely Hard

Ann Arbor South

300 PPM · Extremely Hard

Auburn Hills

280 PPM · Extremely Hard

Saginaw

180 PPM · Very Hard

Midland

180 PPM · Very Hard

Bay City

175 PPM · Hard

Kalamazoo

171 PPM · Hard

Wyoming

170 PPM · Hard

Lansing

168 PPM · Hard

Troy

168 PPM · Hard

Muskegon

165 PPM · Hard

Ann Arbor

163 PPM · Hard

Rochester Hills

160 PPM · Hard

Canton

156 PPM · Hard

West Bloomfield

155 PPM · Hard

Sterling Heights

154 PPM · Hard

Farmington Hills

152 PPM · Hard

Southfield

148 PPM · Hard

Novi

148 PPM · Hard

Warren

145 PPM · Hard

Livonia

145 PPM · Hard

Grand Rapids

137 PPM · Hard

Flint

132 PPM · Hard

Detroit

130 PPM · Hard

Dearborn

126 PPM · Hard

Minnesota

Woodbury

271 PPM · Extremely Hard

Mankato

270 PPM · Extremely Hard

Lakeville

265 PPM · Extremely Hard

Eden Prairie

260 PPM · Extremely Hard

Bloomington

257 PPM · Extremely Hard

Burnsville

255 PPM · Extremely Hard

Plymouth

254 PPM · Extremely Hard

Maple Grove

250 PPM · Extremely Hard

Blaine

245 PPM · Very Hard

Brooklyn Park

240 PPM · Very Hard

St. Cloud

230 PPM · Very Hard

Minneapolis

200 PPM · Very Hard

Rochester

200 PPM · Very Hard

St. Paul East

170 PPM · Hard

St. Paul

68 PPM · Moderately Hard

Duluth

21 PPM · Slightly Hard

Missouri

Springfield

299 PPM · Extremely Hard

Columbia North

290 PPM · Extremely Hard

Joplin

270 PPM · Extremely Hard

Columbia

251 PPM · Extremely Hard

Jefferson City

230 PPM · Very Hard

Kansas City

215 PPM · Very Hard

Lee's Summit

211 PPM · Very Hard

O'Fallon

200 PPM · Very Hard

Lees Summit

200 PPM · Very Hard

St. Charles

195 PPM · Very Hard

Independence

186 PPM · Very Hard

Blue Springs

180 PPM · Very Hard

St. Louis

150 PPM · Hard

Chesterfield

150 PPM · Hard

Webster Groves

140 PPM · Hard

Mississippi

Gulfport

107 PPM · Moderately Hard

Biloxi

100 PPM · Moderately Hard

Jackson

60 PPM · Moderately Hard

Southaven

55 PPM · Slightly Hard

Pearl

55 PPM · Slightly Hard

Hattiesburg

53 PPM · Slightly Hard

Olive Branch

50 PPM · Slightly Hard

Tupelo

45 PPM · Slightly Hard

Oxford

30 PPM · Slightly Hard

Madison

20 PPM · Slightly Hard

Jackson Downtown

15 PPM · Soft

Montana

Helena

160 PPM · Hard

Havre

110 PPM · Moderately Hard

Bozeman

79 PPM · Moderately Hard

Great Falls

71 PPM · Moderately Hard

Billings

65 PPM · Moderately Hard

Butte

55 PPM · Slightly Hard

Kalispell

35 PPM · Slightly Hard

Missoula

16 PPM · Soft

North Carolina

Asheville

90 PPM · Moderately Hard

Gastonia

53 PPM · Slightly Hard

Charlotte

50 PPM · Slightly Hard

Winston-Salem

49 PPM · Slightly Hard

Wilmington

49 PPM · Slightly Hard

Cary

49 PPM · Slightly Hard

Greensboro

46 PPM · Slightly Hard

High Point

46 PPM · Slightly Hard

Raleigh

45 PPM · Slightly Hard

Hickory

45 PPM · Slightly Hard

Indian Trail

44 PPM · Slightly Hard

Huntersville

42 PPM · Slightly Hard

Kannapolis

41 PPM · Slightly Hard

Apex

40 PPM · Slightly Hard

Mooresville

40 PPM · Slightly Hard

Wake Forest

38 PPM · Slightly Hard

Durham

35 PPM · Slightly Hard

Raleigh South

35 PPM · Slightly Hard

Fayetteville

32 PPM · Slightly Hard

Concord

32 PPM · Slightly Hard

Durham South

30 PPM · Slightly Hard

Jacksonville

28 PPM · Slightly Hard

Chapel Hill

25 PPM · Slightly Hard

Winston-Salem Downtown

20 PPM · Slightly Hard

Marion

10 PPM · Soft

North Dakota

Dickinson

310 PPM · Extremely Hard

Bismarck

299 PPM · Extremely Hard

Minot

280 PPM · Extremely Hard

Grand Forks

259 PPM · Extremely Hard

West Fargo

240 PPM · Very Hard

Fargo

230 PPM · Very Hard

Nebraska

Bellevue

285 PPM · Extremely Hard

Papillion

280 PPM · Extremely Hard

Columbus

275 PPM · Extremely Hard

Kearney

270 PPM · Extremely Hard

Fremont

265 PPM · Extremely Hard

Grand Island

262 PPM · Extremely Hard

Norfolk

260 PPM · Extremely Hard

Lincoln

214 PPM · Very Hard

Lincoln South

200 PPM · Very Hard

Omaha

170 PPM · Hard

New Hampshire

Manchester

31 PPM · Slightly Hard

Dover

30 PPM · Slightly Hard

Nashua

28 PPM · Slightly Hard

Concord

22 PPM · Slightly Hard

Manchester South

18 PPM · Slightly Hard

Keene

15 PPM · Soft

New Jersey

Princeton

70 PPM · Moderately Hard

Elizabeth

64 PPM · Moderately Hard

Hoboken

61 PPM · Moderately Hard

Morristown

60 PPM · Moderately Hard

Hackensack

60 PPM · Moderately Hard

Edison

55 PPM · Slightly Hard

Piscataway

55 PPM · Slightly Hard

Lawrence Township

55 PPM · Slightly Hard

Woodbridge

50 PPM · Slightly Hard

Perth Amboy

50 PPM · Slightly Hard

New Brunswick

48 PPM · Slightly Hard

Clifton

45 PPM · Slightly Hard

Mount Holly

45 PPM · Slightly Hard

Paterson

41 PPM · Slightly Hard

Jersey City

39 PPM · Slightly Hard

Toms River

32 PPM · Slightly Hard

Newark

30 PPM · Slightly Hard

Vineland

30 PPM · Slightly Hard

Bayonne

30 PPM · Slightly Hard

Lakewood

28 PPM · Slightly Hard

Trenton

27 PPM · Slightly Hard

Atlantic City

25 PPM · Slightly Hard

New Mexico

Hobbs

320 PPM · Extremely Hard

Roswell

310 PPM · Extremely Hard

Clovis

300 PPM · Extremely Hard

Las Cruces

298 PPM · Extremely Hard

Rio Rancho

295 PPM · Extremely Hard

Albuquerque

130 PPM · Hard

Farmington

85 PPM · Moderately Hard

Santa Fe

71 PPM · Moderately Hard

Santa Fe South

60 PPM · Moderately Hard

Nevada

Las Vegas

290 PPM · Extremely Hard

Paradise

290 PPM · Extremely Hard

Henderson South

290 PPM · Extremely Hard

Spring Valley

288 PPM · Extremely Hard

Sunrise Manor

287 PPM · Extremely Hard

North Las Vegas

286 PPM · Extremely Hard

Enterprise

285 PPM · Extremely Hard

Henderson

281 PPM · Extremely Hard

Reno

92 PPM · Moderately Hard

Sparks

78 PPM · Moderately Hard

Carson City

75 PPM · Moderately Hard

New York

Rochester

162 PPM · Hard

Buffalo

142 PPM · Hard

Lockport

140 PPM · Hard

Webster

130 PPM · Hard

Rochester South

130 PPM · Hard

Niagara Falls

120 PPM · Hard

Tonawanda

120 PPM · Hard

Ithaca

110 PPM · Moderately Hard

Binghamton

85 PPM · Moderately Hard

Downtown Syracuse

85 PPM · Moderately Hard

Middletown

80 PPM · Moderately Hard

Suffern

60 PPM · Moderately Hard

Schenectady

57 PPM · Slightly Hard

Utica

51 PPM · Slightly Hard

Colonie

50 PPM · Slightly Hard

Yonkers

45 PPM · Slightly Hard

Mount Kisco

45 PPM · Slightly Hard

Syracuse

43 PPM · Slightly Hard

White Plains

40 PPM · Slightly Hard

Poughkeepsie

40 PPM · Slightly Hard

Troy

40 PPM · Slightly Hard

Hicksville

40 PPM · Slightly Hard

Albany

39 PPM · Slightly Hard

Mount Vernon

35 PPM · Slightly Hard

Garden City

35 PPM · Slightly Hard

Huntington

35 PPM · Slightly Hard

Oceanside

35 PPM · Slightly Hard

Freeport

35 PPM · Slightly Hard

White Plains Downtown

35 PPM · Slightly Hard

Uniondale

30 PPM · Slightly Hard

Babylon

30 PPM · Slightly Hard

Hempstead

30 PPM · Slightly Hard

New Rochelle

28 PPM · Slightly Hard

New York

25 PPM · Slightly Hard

Brooklyn

25 PPM · Slightly Hard

Staten Island

25 PPM · Slightly Hard

Long Island City

25 PPM · Slightly Hard

Ohio

Wooster

360 PPM · Extremely Hard

Medina

340 PPM · Extremely Hard

Delaware

320 PPM · Extremely Hard

Lewis Center

320 PPM · Extremely Hard

Westerville

300 PPM · Extremely Hard

West Chester

300 PPM · Extremely Hard

Fairfield

290 PPM · Extremely Hard

Findlay

280 PPM · Extremely Hard

Mason

280 PPM · Extremely Hard

Gahanna

280 PPM · Extremely Hard

Zanesville

275 PPM · Extremely Hard

Newark

270 PPM · Extremely Hard

Dayton

267 PPM · Extremely Hard

Springfield

265 PPM · Extremely Hard

Kettering

260 PPM · Extremely Hard

Columbus Northwest

260 PPM · Extremely Hard

Stow

200 PPM · Very Hard

Strongsville

200 PPM · Very Hard

Columbus

180 PPM · Very Hard

Lorain

178 PPM · Hard

Mansfield

165 PPM · Hard

Youngstown

160 PPM · Hard

Elyria

155 PPM · Hard

Cuyahoga Falls

155 PPM · Hard

Mentor

150 PPM · Hard

Beachwood

150 PPM · Hard

Toledo

148 PPM · Hard

Parma

145 PPM · Hard

Cleveland

136 PPM · Hard

Akron

135 PPM · Hard

Lakewood

135 PPM · Hard

Hamilton

128 PPM · Hard

Canton

125 PPM · Hard

Cincinnati

123 PPM · Hard

Oklahoma

Ada

300 PPM · Extremely Hard

Moore

280 PPM · Extremely Hard

Edmond North

260 PPM · Extremely Hard

Norman South

240 PPM · Very Hard

Norman

236 PPM · Very Hard

Broken Arrow

224 PPM · Very Hard

Owasso

210 PPM · Very Hard

Lawton

204 PPM · Very Hard

Oklahoma City North

200 PPM · Very Hard

Edmond

197 PPM · Very Hard

Tahlequah

180 PPM · Very Hard

Muskogee

180 PPM · Very Hard

Oklahoma City

170 PPM · Hard

Tulsa

154 PPM · Hard

Oregon

Hermiston

50 PPM · Slightly Hard

Prineville

48 PPM · Slightly Hard

Pendleton

45 PPM · Slightly Hard

Klamath Falls

42 PPM · Slightly Hard

Redmond

40 PPM · Slightly Hard

La Grande

38 PPM · Slightly Hard

The Dalles

35 PPM · Slightly Hard

Hillsboro

30 PPM · Slightly Hard

Grants Pass

30 PPM · Slightly Hard

Woodburn

30 PPM · Slightly Hard

Medford

28 PPM · Slightly Hard

Central Point

28 PPM · Slightly Hard

Stayton

28 PPM · Slightly Hard

Eugene

27 PPM · Slightly Hard

Corvallis

27 PPM · Slightly Hard

McMinnville

26 PPM · Slightly Hard

Lebanon

26 PPM · Slightly Hard

Springfield

25 PPM · Slightly Hard

Forest Grove

25 PPM · Slightly Hard

Silverton

25 PPM · Slightly Hard

Beaverton

24 PPM · Slightly Hard

Newberg

24 PPM · Slightly Hard

Dallas

24 PPM · Slightly Hard

Gresham

22 PPM · Slightly Hard

Tualatin

22 PPM · Slightly Hard

Wilsonville

22 PPM · Slightly Hard

Canby

22 PPM · Slightly Hard

Roseburg

22 PPM · Slightly Hard

Tigard

20 PPM · Slightly Hard

Milwaukie

20 PPM · Slightly Hard

Sherwood

20 PPM · Slightly Hard

Cottage Grove

20 PPM · Slightly Hard

Albany

19 PPM · Slightly Hard

Oregon City

19 PPM · Slightly Hard

Happy Valley

19 PPM · Slightly Hard

Lake Oswego

18 PPM · Slightly Hard

West Linn

18 PPM · Slightly Hard

Hood River

18 PPM · Slightly Hard

St. Helens

18 PPM · Slightly Hard

Bend

17 PPM · Slightly Hard

Troutdale

16 PPM · Soft

Portland

15 PPM · Soft

Keizer

15 PPM · Soft

Ashland

15 PPM · Soft

Coos Bay

15 PPM · Soft

Salem

14 PPM · Soft

Sandy

14 PPM · Soft

Astoria

12 PPM · Soft

Pennsylvania

Hanover

170 PPM · Hard

Camp Hill

160 PPM · Hard

State College

150 PPM · Hard

Pottstown

150 PPM · Hard

Pittsburgh

140 PPM · Hard

Coraopolis

140 PPM · Hard

Erie

130 PPM · Hard

Lancaster

130 PPM · Hard

Greensburg

130 PPM · Hard

Bethlehem Township

125 PPM · Hard

Paoli

120 PPM · Hard

Easton

120 PPM · Hard

York

115 PPM · Moderately Hard

Butler

110 PPM · Moderately Hard

Philadelphia

100 PPM · Moderately Hard

West Chester

100 PPM · Moderately Hard

Doylestown

100 PPM · Moderately Hard

Wayne

90 PPM · Moderately Hard

Pittsburgh North

90 PPM · Moderately Hard

Kennett Square

80 PPM · Moderately Hard

Bethlehem

62 PPM · Moderately Hard

Harrisburg

60 PPM · Moderately Hard

Stroudsburg

60 PPM · Moderately Hard

Allentown

57 PPM · Slightly Hard

Upper Darby

55 PPM · Slightly Hard

Abington

52 PPM · Slightly Hard

Bensalem

50 PPM · Slightly Hard

Wilkes-Barre South

50 PPM · Slightly Hard

Wilkes-Barre

48 PPM · Slightly Hard

Scranton

40 PPM · Slightly Hard

Reading

26 PPM · Slightly Hard

Rhode Island

Warwick

39 PPM · Slightly Hard

Providence

33 PPM · Slightly Hard

Cranston

27 PPM · Slightly Hard

East Providence

25 PPM · Slightly Hard

Pawtucket

24 PPM · Slightly Hard

Woonsocket

22 PPM · Slightly Hard

Newport

20 PPM · Slightly Hard

South Carolina

Charleston

80 PPM · Moderately Hard

Bluffton

55 PPM · Slightly Hard

Myrtle Beach

50 PPM · Slightly Hard

Columbia

48 PPM · Slightly Hard

North Charleston

47 PPM · Slightly Hard

Rock Hill

44 PPM · Slightly Hard

Hilton Head

42 PPM · Slightly Hard

Summerville

40 PPM · Slightly Hard

Goose Creek

38 PPM · Slightly Hard

Mount Pleasant

35 PPM · Slightly Hard

Greenville

30 PPM · Slightly Hard

Charleston Downtown

28 PPM · Slightly Hard

Spartanburg

25 PPM · Slightly Hard

Taylors

15 PPM · Soft

Clemson

15 PPM · Soft

Greer

15 PPM · Soft

South Dakota

Mitchell

280 PPM · Extremely Hard

Watertown

260 PPM · Extremely Hard

Sioux Falls

250 PPM · Extremely Hard

Sioux Falls Downtown

250 PPM · Extremely Hard

Brookings

240 PPM · Very Hard

Rapid City

221 PPM · Very Hard

Aberdeen

204 PPM · Very Hard

Tennessee

Collierville

180 PPM · Very Hard

Murfreesboro

161 PPM · Hard

Franklin

161 PPM · Hard

Clarksville

140 PPM · Hard

Cookeville

140 PPM · Hard

Brentwood

135 PPM · Hard

Columbia

120 PPM · Hard

Old Hickory

120 PPM · Hard

Smyrna

115 PPM · Moderately Hard

Nashville

110 PPM · Moderately Hard

Hendersonville

105 PPM · Moderately Hard

Knoxville

90 PPM · Moderately Hard

Chattanooga

82 PPM · Moderately Hard

Jackson

57 PPM · Slightly Hard

Knoxville West

55 PPM · Slightly Hard

Germantown

35 PPM · Slightly Hard

Chattanooga Downtown

35 PPM · Slightly Hard

Memphis

33 PPM · Slightly Hard

Maryville

25 PPM · Slightly Hard

Johnson City

15 PPM · Soft

Texas

San Angelo

298 PPM · Extremely Hard

McAllen

290 PPM · Extremely Hard

Abilene

290 PPM · Extremely Hard

New Braunfels

285 PPM · Extremely Hard

Lubbock

284 PPM · Extremely Hard

Midland

283 PPM · Extremely Hard

Edinburg

280 PPM · Extremely Hard

Schertz

280 PPM · Extremely Hard

Odessa

278 PPM · Extremely Hard

Laredo

277 PPM · Extremely Hard

Mission

275 PPM · Extremely Hard

Amarillo

274 PPM · Extremely Hard

Harlingen

270 PPM · Extremely Hard

Pharr

270 PPM · Extremely Hard

El Paso

265 PPM · Extremely Hard

Georgetown

260 PPM · Extremely Hard

San Antonio West

260 PPM · Extremely Hard

Cedar Park North

260 PPM · Extremely Hard

Round Rock North

255 PPM · Extremely Hard

San Marcos

250 PPM · Extremely Hard

Copperas Cove

250 PPM · Extremely Hard

Denton

246 PPM · Very Hard

Allen

242 PPM · Very Hard

San Antonio

240 PPM · Very Hard

Brownsville

236 PPM · Very Hard

East El Paso

230 PPM · Very Hard

Midlothian

230 PPM · Very Hard

Burleson

210 PPM · Very Hard

Manor

200 PPM · Very Hard

Round Rock

195 PPM · Very Hard

Cedar Park

195 PPM · Very Hard

Rockwall

195 PPM · Very Hard

Katy West

195 PPM · Very Hard

Pflugerville

190 PPM · Very Hard

Katy

190 PPM · Very Hard

Spring North

190 PPM · Very Hard

Leander

185 PPM · Very Hard

Missouri City

185 PPM · Very Hard

Cypress

185 PPM · Very Hard

Temple

180 PPM · Very Hard

Austin

180 PPM · Very Hard

Spring

180 PPM · Very Hard

Waco

177 PPM · Hard

Grand Prairie

175 PPM · Hard

Wylie

170 PPM · Hard

McKinney North

170 PPM · Hard

West University Place

170 PPM · Hard

Roanoke

170 PPM · Hard

Garland East

170 PPM · Hard

Prosper

165 PPM · Hard

North Richland Hills

165 PPM · Hard

Plano West

165 PPM · Hard

Benbrook

160 PPM · Hard

Coppell

160 PPM · Hard

Dallas North

160 PPM · Hard

Southlake

155 PPM · Hard

Mansfield

125 PPM · Hard

Arlington

124 PPM · Hard

Plano

124 PPM · Hard

Houston

120 PPM · Hard

Garland

120 PPM · Hard

Frisco

119 PPM · Moderately Hard

Flower Mound

115 PPM · Moderately Hard

Corpus Christi

113 PPM · Moderately Hard

College Station

113 PPM · Moderately Hard

Fort Worth

110 PPM · Moderately Hard

Dallas

100 PPM · Moderately Hard

League City

95 PPM · Moderately Hard

Irving

94 PPM · Moderately Hard

McKinney

93 PPM · Moderately Hard

Killeen

92 PPM · Moderately Hard

Sugar Land

90 PPM · Moderately Hard

Conroe

85 PPM · Moderately Hard

Tyler

75 PPM · Moderately Hard

Pearland

70 PPM · Moderately Hard

Beaumont

67 PPM · Moderately Hard

Utah

Tooele

280 PPM · Extremely Hard

Provo South

270 PPM · Extremely Hard

St. George

266 PPM · Extremely Hard

Layton

265 PPM · Extremely Hard

Clearfield

260 PPM · Extremely Hard

West Valley City

251 PPM · Extremely Hard

Salt Lake City

250 PPM · Extremely Hard

Cottonwood Heights

250 PPM · Extremely Hard

Bountiful

245 PPM · Very Hard

Ogden

240 PPM · Very Hard

Herriman

240 PPM · Very Hard

Provo

235 PPM · Very Hard

Riverton

235 PPM · Very Hard

Lehi

230 PPM · Very Hard

Draper

225 PPM · Very Hard

Sandy

222 PPM · Very Hard

Logan

210 PPM · Very Hard

Orem

209 PPM · Very Hard

West Jordan

187 PPM · Very Hard

Virginia

Harrisonburg

110 PPM · Moderately Hard

Herndon

110 PPM · Moderately Hard

Stafford

100 PPM · Moderately Hard

Lynchburg

99 PPM · Moderately Hard

Roanoke

74 PPM · Moderately Hard

Richmond

70 PPM · Moderately Hard

Williamsburg

70 PPM · Moderately Hard

Norfolk

53 PPM · Slightly Hard

Richmond Downtown

45 PPM · Slightly Hard

Manassas

42 PPM · Slightly Hard

Alexandria

39 PPM · Slightly Hard

Arlington

38 PPM · Slightly Hard

Charlottesville

35 PPM · Slightly Hard

Staunton

35 PPM · Slightly Hard

Danville

30 PPM · Slightly Hard

Roanoke South

30 PPM · Slightly Hard

Hampton

28 PPM · Slightly Hard

Chesapeake

25 PPM · Slightly Hard

Blacksburg

25 PPM · Slightly Hard

Newport News

24 PPM · Slightly Hard

Suffolk

22 PPM · Slightly Hard

Virginia Beach

20 PPM · Slightly Hard

Vermont

Rutland

25 PPM · Slightly Hard

Burlington

22 PPM · Slightly Hard

South Burlington

20 PPM · Slightly Hard

Essex

18 PPM · Slightly Hard

Montpelier

14 PPM · Soft

Washington

Spokane

104 PPM · Moderately Hard

Pasco

100 PPM · Moderately Hard

Kennewick

95 PPM · Moderately Hard

Richland

92 PPM · Moderately Hard

Wenatchee

70 PPM · Moderately Hard

Bellevue

26 PPM · Slightly Hard

Everett

26 PPM · Slightly Hard

Yakima

25 PPM · Slightly Hard

Redmond

25 PPM · Slightly Hard

Renton

22 PPM · Slightly Hard

Seattle Downtown

22 PPM · Slightly Hard

Tacoma

21 PPM · Slightly Hard

Seattle

20 PPM · Slightly Hard

Auburn

20 PPM · Slightly Hard

Lacey

20 PPM · Slightly Hard

Tacoma South

20 PPM · Slightly Hard

Federal Way

18 PPM · Slightly Hard

Marysville

18 PPM · Slightly Hard

Burien

18 PPM · Slightly Hard

Olympia

17 PPM · Slightly Hard

Kent

16 PPM · Soft

Lake Stevens

16 PPM · Soft

Sammamish

15 PPM · Soft

Bellingham

15 PPM · Soft

Vancouver

13 PPM · Soft

Kirkland

12 PPM · Soft

Wisconsin

Madison

312 PPM · Extremely Hard

Appleton

304 PPM · Extremely Hard

Fond du Lac

290 PPM · Extremely Hard

Janesville

280 PPM · Extremely Hard

Eau Claire

265 PPM · Extremely Hard

Oshkosh

256 PPM · Extremely Hard

La Crosse

235 PPM · Very Hard

Waukesha

196 PPM · Very Hard

Brookfield

190 PPM · Very Hard

Stevens Point

175 PPM · Hard

Sheboygan

170 PPM · Hard

Green Bay

166 PPM · Hard

Manitowoc

165 PPM · Hard

Kenosha

143 PPM · Hard

Milwaukee

140 PPM · Hard

Wauwatosa

140 PPM · Hard

Racine

139 PPM · Hard

West Virginia

Huntington

150 PPM · Hard

Wheeling

135 PPM · Hard

Parkersburg

120 PPM · Hard

Charleston

113 PPM · Moderately Hard

Morgantown

105 PPM · Moderately Hard

Beckley

70 PPM · Moderately Hard

Wyoming

Gillette

245 PPM · Very Hard

Rock Springs

200 PPM · Very Hard

Casper

196 PPM · Very Hard

Cheyenne

190 PPM · Very Hard

Riverton

180 PPM · Very Hard

Sheridan

100 PPM · Moderately Hard

Laramie

66 PPM · Moderately Hard