TapWaterMap

VA / Rockville

VA · Tap water records

Rockville tap water, in plain English

Here is what the EPA's own data shows about tap water in Rockville. According to EPA SDWIS data retrieved June 2026, Rockville is served by 165 active community water systems, together reported to serve about 72,328 people.

As of June 2026, EPA records show 283 violations across the community water system(s) serving Rockville, going back to the earliest EPA record. 27 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.

What the EPA has on record, by system

Lake Monticello

12,933 served · surface water · PWSID VA2065480

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lake Land`Or

4,818 served · groundwater · PWSID VA6033450

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Powhatan Courthouse

3,005 served · groundwater · PWSID VA4145675

Lake Caroline

2,933 served · surface water · PWSID VA6033425

Mountain View

2,773 served · groundwater · PWSID VA2023020

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lake Wilderness

2,513 served · groundwater · PWSID VA6177251

Captains Cove

2,380 served · groundwater · PWSID VA3001100

Spring Meadows-Meadow Gate

2,362 served · groundwater · PWSID VA4085770

Lake Holiday Estates

2,130 served · groundwater · PWSID VA2069650

Rainbow Forest

1,665 served · groundwater · PWSID VA2023480

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Mayfield Farms

1,444 served · surface water · PWSID VA4085525

Queens Lake System

1,375 served · surface water · PWSID VA3199700

Avondale

1,285 served · groundwater · PWSID VA4085047

Irvington Community Of

1,056 served · groundwater · PWSID VA4103550

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Oak Springs

985 served · groundwater · PWSID VA4101600

Presidential Lakes, Sect. 14

951 served · groundwater · PWSID VA6099500

Manakin Farms

948 served · groundwater · PWSID VA4075500

White Oak Estates

930 served · groundwater · PWSID VA2023740

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Cherrydale Subdivision

928 served · groundwater · PWSID VA4085140

Stoney Creek Village

895 served · groundwater · PWSID VA2125950

White Stone

825 served · groundwater · PWSID VA4103980

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

York Terrace System

755 served · surface water · PWSID VA3199995

Rural Point Central

690 served · groundwater · PWSID VA4085740

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Weems

678 served · groundwater · PWSID VA4103830

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Oakwood/Parkview

630 served · groundwater · PWSID VA2023470

Nelson Park

530 served · surface water · PWSID VA3199510

Earlysville Forest

488 served · groundwater · PWSID VA2003255

Reedville, Town Of

480 served · groundwater · PWSID VA4133720

Lively, Community Of

477 served · groundwater · PWSID VA4103800

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Hanover Farms

471 served · groundwater · PWSID VA4085350

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Gwynnfield Subdivision

398 served · groundwater · PWSID VA4057400

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Callao

393 served · groundwater · PWSID VA4133160

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lake Shawnee Estates

379 served · groundwater · PWSID VA4145510

Campbell`S Creek Subdivision

375 served · groundwater · PWSID VA6033050

Five Lakes No 1

360 served · groundwater · PWSID VA4127198

Heatherstone/Botetourt Forest

356 served · groundwater · PWSID VA2023410

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Venter Heights Subdivision

350 served · groundwater · PWSID VA4101800

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Blue Ridge Heights

338 served · groundwater · PWSID VA2023060

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Shawnee Land

330 served · groundwater · PWSID VA2069525

Mill Quarter Plantation

330 served · groundwater · PWSID VA4145600

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Town Of Saluda

323 served · groundwater · PWSID VA4119600

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Indian Creek Estates

318 served · groundwater · PWSID VA4133400

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Chesdin Manor Subdivision

315 served · groundwater · PWSID VA3053248

Heathsville

306 served · groundwater · PWSID VA4133360

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Fox Run/Champion Forest Shores

303 served · groundwater · PWSID VA5117350

Walnut Grove No 1

290 served · groundwater · PWSID VA4085902

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Great Creek Landing

290 served · groundwater · PWSID VA5117371

Chesapeake Bay Estates

288 served · groundwater · PWSID VA4133200

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Holly Ridge No 1

279 served · surface water · PWSID VA4085415

Mallard Bay Subdivision

264 served · groundwater · PWSID VA4133620

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Colonial Forest

246 served · groundwater · PWSID VA4085155

Brookwood Manor

230 served · groundwater · PWSID VA4127055

Lakeside Village

220 served · groundwater · PWSID VA5049400

James River Estates

219 served · surface water · PWSID VA4075400

Foxwells

218 served · groundwater · PWSID VA4103350

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Joyceville-Holly Grove

205 served · groundwater · PWSID VA5117390

Lottsburg

201 served · groundwater · PWSID VA4133560

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

White Sand Harbour

200 served · groundwater · PWSID VA4133890

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Franklin Acres

200 served · groundwater · PWSID VA5067238

Dutch Hollow Subdivision

200 served · groundwater · PWSID VA6047065

Kinsale, Town Of

198 served · groundwater · PWSID VA4193600

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Yellow Mountain Village

196 served · groundwater · PWSID VA2161665

Wildwood Forest

188 served · groundwater · PWSID VA6047955

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pelham Manor

183 served · groundwater · PWSID VA6047400

Luttrellville

175 served · groundwater · PWSID VA4159500

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

High Point Farms No. 1

170 served · groundwater · PWSID VA4085390

Carver Gardens

163 served · surface water · PWSID VA3199200

Cedarbrooke Subdivision

163 served · groundwater · PWSID VA6047038

Burgess

160 served · groundwater · PWSID VA4133120

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Overlook Heights Combined

160 served · groundwater · PWSID VA6047391

Woodruff Subdivision

153 served · groundwater · PWSID VA4101950

Windy Gap Mountain Village

150 served · groundwater · PWSID VA5067980

Holler Subdivision

145 served · groundwater · PWSID VA2171350

Massanutten View Subdivision

145 served · groundwater · PWSID VA2171475

Stony Springs Subdivision

145 served · groundwater · PWSID VA3053915

Sandy Point Subdivision

143 served · groundwater · PWSID VA4193840

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Bells Cove Subdivision

140 served · groundwater · PWSID VA4133080

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Cedar Pointe

138 served · groundwater · PWSID VA4119300

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lewisetta

138 served · groundwater · PWSID VA4133480

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Nomini Bay Farms

138 served · groundwater · PWSID VA4193675

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Elsinore Subdivision

138 served · groundwater · PWSID VA6033200

British Woods

135 served · groundwater · PWSID VA2023140

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Timbuctu Subdivision

132 served · groundwater · PWSID VA5117846

Churchill Subdivision

130 served · groundwater · PWSID VA6047041

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Riverbend Estates

129 served · groundwater · PWSID VA4133760

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lancaster Courthouse

125 served · groundwater · PWSID VA4103680

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Tartan

123 served · groundwater · PWSID VA4103630

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Anchor Cove Subdivision

120 served · groundwater · PWSID VA5117096

Merrymount Subdivision

118 served · groundwater · PWSID VA5117450

Tanglewood Section U

118 served · groundwater · PWSID VA5117833

Merrimac South

118 served · groundwater · PWSID VA6047330

Crozier

115 served · groundwater · PWSID VA4075100

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Glebe Point

111 served · groundwater · PWSID VA4133320

Columbia

110 served · groundwater · PWSID VA2065120

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Buckhead Subdivision

110 served · groundwater · PWSID VA5117125

Cove Colony

105 served · groundwater · PWSID VA4103250

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Chesapeake Shores

103 served · groundwater · PWSID VA4115400

Bon Harbours

96 served · groundwater · PWSID VA4133100

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Horners Beach

95 served · groundwater · PWSID VA4193560

Siouan Shores

95 served · groundwater · PWSID VA5025625

Palmyra

90 served · groundwater · PWSID VA2065540

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Ryan Subdivision

90 served · groundwater · PWSID VA2171683

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Windsor Park

90 served · groundwater · PWSID VA4127895

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

St. Tammany Landing

90 served · groundwater · PWSID VA5117831

Twin Cedars

90 served · groundwater · PWSID VA6033700

Glendale Acres

87 served · groundwater · PWSID VA4036280

Corbin - Lewis Estates

87 served · groundwater · PWSID VA4103225

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Forest Hills Subd

85 served · groundwater · PWSID VA4103338

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pleasant Grove Subdivision

85 served · groundwater · PWSID VA5025570

Long Branch Shores

85 served · groundwater · PWSID VA5117419

Cobbs Shores

83 served · groundwater · PWSID VA4115450

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Heritage Estates

80 served · groundwater · PWSID VA6047300

Mountain View Trailer Park

80 served · groundwater · PWSID VA6047340

Bushfield

78 served · groundwater · PWSID VA4193200

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Wicomico Church

75 served · groundwater · PWSID VA4133900

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Achsah Acres

75 served · groundwater · PWSID VA6113100

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Black Stump

73 served · groundwater · PWSID VA4103130

Stagecoach Hills

70 served · groundwater · PWSID VA2065781

Rainier Estates

70 served · groundwater · PWSID VA4085700

Lucys Cove

70 served · groundwater · PWSID VA4119525

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Brunswick Estates

70 served · groundwater · PWSID VA5025500

Cliffs On The Roanoke

70 served · groundwater · PWSID VA5117315

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Edinburg Extended

68 served · groundwater · PWSID VA2171315

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pine Harbor

68 served · groundwater · PWSID VA4133696

Bell Acres

68 served · groundwater · PWSID VA4159100

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lancaster Shores

63 served · groundwater · PWSID VA4103710

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Drysdale Subdivision

63 served · groundwater · PWSID VA6061125

Millers Square

60 served · groundwater · PWSID VA4057568

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pagebrook

60 served · surface water · PWSID VA4075630

Oak Park Subdivision

60 served · groundwater · PWSID VA6113170

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

General Parker Shores

58 served · groundwater · PWSID VA4193440

Nottoway Acres Subdivision

58 served · groundwater · PWSID VA5025550

Vineyard Grove

57 served · groundwater · PWSID VA4103947

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Hicks Hill Subdivision

55 served · groundwater · PWSID VA5117378

Hawk`S Nest Point

53 served · groundwater · PWSID VA5117375

Northtown Village

53 served · groundwater · PWSID VA6047360

Ball Point

51 served · groundwater · PWSID VA4103100

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Chesapeake Cove

50 served · groundwater · PWSID VA4133203

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Granite Hall Shores

50 served · surface water · PWSID VA5117360

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Peete River Farm

50 served · surface water · PWSID VA5117660

Norman Acres Subdivision

50 served · groundwater · PWSID VA6047355

Waverly Subdivision

49 served · groundwater · PWSID VA4103950

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Maryfield Sub.

48 served · groundwater · PWSID VA4057566

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Black Creek Subdivision

48 served · groundwater · PWSID VA4101030

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Catalpa Subdivision

48 served · groundwater · PWSID VA6047025

Churchfields

45 served · groundwater · PWSID VA4103200

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Sloop Pointe

45 served · groundwater · PWSID VA4103825

Schoolhouse Meadows

45 served · groundwater · PWSID VA4159800

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Daingerfield Subdivision

43 served · groundwater · PWSID VA4057250

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Forest View Subdivision

43 served · groundwater · PWSID VA6047230

Browns Store

42 served · groundwater · PWSID VA4133110

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lane View Subdivision

39 served · groundwater · PWSID VA5025480

Wolftrap Woods

38 served · groundwater · PWSID VA6137900

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Rolling Acres

36 served · groundwater · PWSID VA3081730

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Tanglewood Section A

35 served · groundwater · PWSID VA5117834

Westover Estates

35 served · groundwater · PWSID VA6047865

Valley View

33 served · groundwater · PWSID VA6113500

Sunnybrook Subdivision

30 served · groundwater · PWSID VA5025650

Pleasant View Estates

28 served · groundwater · PWSID VA4159700

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Hazel River

28 served · groundwater · PWSID VA6047260

Springwood Subdivision

28 served · groundwater · PWSID VA6047475

Highbank

25 served · groundwater · PWSID VA4103540

Milburn Subdivision

25 served · groundwater · PWSID VA4103817

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Wicomico Ridge

25 served · groundwater · PWSID VA4133920

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Gibson Mills Subdivision

25 served · groundwater · PWSID VA6047250

What this means

A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.

This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.

Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.