Water Quality in Rockville, VA (23146)
EPA violation data for public water systems serving ZIP code 23146.
Past Health-Based Violations
2 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 8 monitoring/reporting violations.
More violations than 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
3,451
Population
201
Water Systems
10
Violations (5yr)
2
Health-Based
Location
Loading map...
Water Systems Serving This Area (201)
Hanover Suburban Water System
Surface water 57,931 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Kings Dominion-Hanover County
Purchased surface water 15,600 people served
0 violations
Lake Land`Or
Groundwater 4,818 people served
0 violations
Lead tested: 1.14 ppb (limit: 15 ppb) ✓
Powhatan Courthouse
Groundwater 3,005 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Lake Caroline
Surface water 2,933 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Mountain View
Groundwater 2,773 people served
0 violations
Lead tested: 2.27 ppb (limit: 15 ppb) ✓
Lake Wilderness
1 health-based Groundwater 2,513 people served
1 violation (5yr)
· 1 health-based · All resolved
Captains Cove
Groundwater 2,380 people served
0 violations
Spring Meadows-Meadow Gate
Groundwater 2,362 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Lake Holiday Estates
Groundwater 2,130 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Rainbow Forest
Groundwater 1,665 people served
0 violations
Lead tested: 1.74 ppb (limit: 15 ppb) ✓
Mayfield Farms
Purchased surface water 1,444 people served
0 violations
Lead tested: 1.22 ppb (limit: 15 ppb) ✓
Queens Lake System
Purchased surface water 1,375 people served
0 violations
Lead tested: 4.58 ppb (limit: 15 ppb) ✓
Indian River
Groundwater 1,308 people served
0 violations
Avondale
Groundwater 1,285 people served
0 violations
Lead tested: 2.56 ppb (limit: 15 ppb) ✓
Irvington Community Of
Groundwater 1,056 people served
0 violations
Colonial Court
Groundwater 1,002 people served
0 violations
Oak Springs
Groundwater 985 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Presidential Lakes, Sect. 14
Groundwater 951 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Manakin Farms
Groundwater 948 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
White Oak Estates
Groundwater 930 people served
0 violations
Lead tested: 3.47 ppb (limit: 15 ppb) ✓
Cherrydale Subdivision
Groundwater 928 people served
0 violations
Stoney Creek Village
Groundwater 895 people served
0 violations
White Stone
Groundwater 825 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Lake Wilderness, Sec.12-16
Groundwater 812 people served
0 violations
York Terrace System
Purchased surface water 755 people served
0 violations
Rural Point Central
Groundwater 690 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Weems
Groundwater 678 people served
0 violations
Lead tested: 1.98 ppb (limit: 15 ppb) ✓
Oakwood/Parkview
Groundwater 630 people served
0 violations
Lead tested: 1.13 ppb (limit: 15 ppb) ✓
Nelson Park
Purchased surface water 530 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Earlysville Forest
Groundwater 488 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Reedville, Town Of
Groundwater 480 people served
0 violations
Lead tested: 2.15 ppb (limit: 15 ppb) ✓
Lively, Community Of
Groundwater 477 people served
0 violations
Lead tested: 1.5 ppb (limit: 15 ppb) ✓
Hanover Farms
Groundwater 471 people served
0 violations
Lead tested: 0.56 ppb (limit: 15 ppb) ✓
Gwynnfield Subdivision
Groundwater 398 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Callao
Groundwater 393 people served
0 violations
Lead tested: 1.32 ppb (limit: 15 ppb) ✓
Lake Shawnee Estates
Groundwater 379 people served
0 violations
Lead tested: 2.19 ppb (limit: 15 ppb) ✓
Campbell`S Creek Subdivision
Groundwater 375 people served
0 violations
Lead tested: 0.78 ppb (limit: 15 ppb) ✓
Five Lakes No 1
Groundwater 360 people served
0 violations
Lead tested: 1.39 ppb (limit: 15 ppb) ✓
Heatherstone/Botetourt Forest
Groundwater 356 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Baptist Missionary Learning Center
All resolved Groundwater 350 people served
1 violation (5yr)
· All resolved
Lead tested: 1.53 ppb (limit: 15 ppb) ✓
Venter Heights Subdivision
Groundwater 350 people served
0 violations
Blue Ridge Heights
Groundwater 338 people served
0 violations
Lead tested: 6 ppb (limit: 15 ppb) ✓
Stratford Place
Groundwater 333 people served
0 violations
Shawnee Land
Groundwater 330 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Mill Quarter Plantation
Groundwater 330 people served
0 violations
Lead tested: 7.6 ppb (limit: 15 ppb) ✓
Town Of Saluda
Groundwater 323 people served
0 violations
Indian Creek Estates
Groundwater 318 people served
0 violations
Chesdin Manor Subdivision
Groundwater 315 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Heathsville
Groundwater 306 people served
0 violations
Lead tested: 1.36 ppb (limit: 15 ppb) ✓
Fox Run/Champion Forest Shores
Groundwater 303 people served
0 violations
Lead tested: 3.04 ppb (limit: 15 ppb) ✓
Biltmore
Groundwater 292 people served
0 violations
Walnut Grove No 1
Groundwater 290 people served
0 violations
Lead tested: 2.12 ppb (limit: 15 ppb) ✓
Great Creek Landing
Groundwater 290 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Chesapeake Bay Estates
Groundwater 288 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Holly Ridge No 1
Purchased surface water 279 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Mayfield Subdivision
Purchased surface water 274 people served
0 violations
Westwood Manor
Purchased surface water 273 people served
0 violations
Mallard Bay Subdivision
Groundwater 264 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Rockville Elem School
Groundwater 250 people served
0 violations
Colonial Forest
Groundwater 246 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Ridgecrest Subdivision
Groundwater 245 people served
0 violations
West Wistar
Groundwater 243 people served
0 violations
Brookwood Manor
Groundwater 230 people served
0 violations
Lead tested: 0.7 ppb (limit: 15 ppb) ✓
Academy Road Waterworks
Purchased groundwater 220 people served
0 violations
Lakeside Village
Groundwater 220 people served
0 violations
James River Estates
Purchased surface water 219 people served
0 violations
Lead tested: 1.19 ppb (limit: 15 ppb) ✓
Foxwells
Groundwater 218 people served
0 violations
Yellow Mountain Village
All resolved Groundwater 205 people served
4 violations (5yr)
· All resolved
Joyceville-Holly Grove
Groundwater 205 people served
0 violations
Lead tested: 2.88 ppb (limit: 15 ppb) ✓
Lottsburg
Groundwater 201 people served
0 violations
Lead tested: 2.9 ppb (limit: 15 ppb) ✓
Franklin Acres
Groundwater 200 people served
0 violations
Lead tested: 2.93 ppb (limit: 15 ppb) ✓
White Sand Harbour
Groundwater 200 people served
0 violations
Dutch Hollow Subdivision
Groundwater 200 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Exxon Service Center
Groundwater 200 people served
0 violations
Stratford Village
Purchased surface water 199 people served
0 violations
Kinsale, Town Of
Groundwater 198 people served
0 violations
Woodlawn Farms
Purchased surface water 193 people served
0 violations
Wildwood Forest
Groundwater 188 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Courtney Subdivision
Groundwater 187 people served
0 violations
Pelham Manor
Groundwater 183 people served
0 violations
Luttrellville
Groundwater 175 people served
0 violations
Lead tested: 1.24 ppb (limit: 15 ppb) ✓
High Point Farms No. 1
Groundwater 170 people served
0 violations
Lead tested: 1.33 ppb (limit: 15 ppb) ✓
Carver Gardens
Purchased surface water 163 people served
0 violations
Cedarbrooke Subdivision
Groundwater 163 people served
0 violations
Lead tested: 1.2 ppb (limit: 15 ppb) ✓
Overlook Heights Combined
Groundwater 160 people served
0 violations
Burgess
Groundwater 160 people served
0 violations
Lead tested: 1.32 ppb (limit: 15 ppb) ✓
Woodruff Subdivision
Groundwater 153 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Windy Gap Mountain Village
Groundwater 150 people served
0 violations
Lead tested: 3.38 ppb (limit: 15 ppb) ✓
Holler Subdivision
Groundwater 145 people served
0 violations
Lead tested: 1.6 ppb (limit: 15 ppb) ✓
Stony Springs Subdivision
Groundwater 145 people served
0 violations
Lead tested: 5.9 ppb (limit: 15 ppb) ✓
Massanutten View Subdivision
Groundwater 145 people served
0 violations
Sandy Point Subdivision
Groundwater 143 people served
0 violations
Bells Cove Subdivision
Groundwater 140 people served
0 violations
Lewisetta
Groundwater 138 people served
0 violations
Nomini Bay Farms
Groundwater 138 people served
0 violations
Lead tested: 1.3 ppb (limit: 15 ppb) ✓
Elsinore Subdivision
Groundwater 138 people served
0 violations
Botetourt Forest
Groundwater 138 people served
0 violations
Cedar Pointe
Groundwater 138 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
British Woods
Groundwater 135 people served
0 violations
Lead tested: 7.5 ppb (limit: 15 ppb) ✓
Timbuctu Subdivision
Groundwater 132 people served
0 violations
Lead tested: 1.52 ppb (limit: 15 ppb) ✓
Churchill Subdivision
Groundwater 130 people served
0 violations
Riverbend Estates
Groundwater 129 people served
0 violations
Lancaster Courthouse
Groundwater 125 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb) ✓
Tartan
Groundwater 123 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Anchor Cove Subdivision
Groundwater 120 people served
0 violations
Lead tested: 2.03 ppb (limit: 15 ppb) ✓
Tanglewood Section U
Groundwater 118 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Merrimac South
Groundwater 118 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Merrymount Subdivision
Groundwater 118 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Crozier
Groundwater 115 people served
0 violations
Lead tested: 4.1 ppb (limit: 15 ppb) ✓
Glebe Point
All resolved Groundwater 111 people served
2 violations (5yr)
· All resolved
Lead tested: 1.1 ppb (limit: 15 ppb) ✓
Columbia
Groundwater 110 people served
0 violations
Buckhead Subdivision
Groundwater 110 people served
0 violations
Lead tested: 0.9 ppb (limit: 15 ppb) ✓
Country Club Estates
Purchased surface water 108 people served
0 violations
Cove Colony
Groundwater 105 people served
0 violations
Lead tested: 0.66 ppb (limit: 15 ppb) ✓
Chesapeake Shores
1 health-based Groundwater 103 people served
1 violation (5yr)
· 1 health-based · All resolved
Lead tested: 3.19 ppb (limit: 15 ppb) ✓
Mimosa Park
Groundwater 100 people served
0 violations
Kildare
Groundwater 98 people served
0 violations
Bon Harbours
Groundwater 96 people served
0 violations
Lead tested: 2.55 ppb (limit: 15 ppb) ✓
Horners Beach
Groundwater 95 people served
0 violations
Lead tested: 2.46 ppb (limit: 15 ppb) ✓
Siouan Shores
Groundwater 95 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Palmyra
Groundwater 90 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Twin Cedars
Groundwater 90 people served
0 violations
Lead tested: 1.08 ppb (limit: 15 ppb) ✓
Windsor Park
Groundwater 90 people served
0 violations
St. Tammany Landing
Groundwater 90 people served
0 violations
Ryan Subdivision
Groundwater 90 people served
0 violations
Wedgewood Farms
Groundwater 90 people served
0 violations
Corbin - Lewis Estates
Groundwater 87 people served
0 violations
Lead tested: 0.96 ppb (limit: 15 ppb) ✓
Glendale Acres
Groundwater 87 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pleasant Grove Subdivision
Groundwater 85 people served
0 violations
Lead tested: 2.45 ppb (limit: 15 ppb) ✓
Forest Hills Subd
Groundwater 85 people served
0 violations
Long Branch Shores
Groundwater 85 people served
0 violations
Pine Heights
Groundwater 84 people served
0 violations
Ginter Gardens
Purchased surface water 84 people served
0 violations
Cobbs Shores
Groundwater 83 people served
0 violations
Lead tested: 3.38 ppb (limit: 15 ppb) ✓
Mountain View Trailer Park
Groundwater 80 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Heritage Estates
Groundwater 80 people served
0 violations
Bushfield
Groundwater 78 people served
0 violations
Lead tested: 0.6 ppb (limit: 15 ppb) ✓
Wicomico Church
Groundwater 75 people served
0 violations
Lead tested: 6.3 ppb (limit: 15 ppb) ✓
Achsah Acres
Groundwater 75 people served
0 violations
Montezuma Farms
Purchased surface water 73 people served
0 violations
Black Stump
Groundwater 73 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Stagecoach Hills
Groundwater 70 people served
0 violations
Lead tested: 2.59 ppb (limit: 15 ppb) ✓
Kennon House Restaurant
Groundwater 70 people served
0 violations
Cliffs On The Roanoke
Groundwater 70 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Rainier Estates
Groundwater 70 people served
0 violations
Lucys Cove
Groundwater 70 people served
0 violations
Lead tested: 1.76 ppb (limit: 15 ppb) ✓
Brunswick Estates
Groundwater 70 people served
0 violations
Lead tested: 1.9 ppb (limit: 15 ppb) ✓
Bell Acres
Groundwater 68 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pine Harbor
Groundwater 68 people served
0 violations
Lead tested: 0.62 ppb (limit: 15 ppb) ✓
Edinburg Extended
Groundwater 68 people served
0 violations
Mechanicsville Gardens
Groundwater 65 people served
0 violations
Lancaster Shores
Groundwater 63 people served
0 violations
Drysdale Subdivision
Groundwater 63 people served
0 violations
Berea Baptist Church
Groundwater 60 people served
0 violations
Lead tested: 9.14 ppb (limit: 15 ppb) ✓
Millers Square
Groundwater 60 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pagebrook
Purchased surface water 60 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Oak Park Subdivision
Groundwater 60 people served
0 violations
Lead tested: 1.92 ppb (limit: 15 ppb) ✓
Lakeside Village Section 2
Groundwater 58 people served
0 violations
General Parker Shores
All resolved Groundwater 58 people served
1 violation (5yr)
· All resolved
Lead tested: 3.06 ppb (limit: 15 ppb) ✓
Nottoway Acres Subdivision
Groundwater 58 people served
0 violations
Lead tested: 4.69 ppb (limit: 15 ppb) ✓
Vineyard Grove
Groundwater 57 people served
0 violations
Lead tested: 1.06 ppb (limit: 15 ppb) ✓
Hicks Hill Subdivision
Groundwater 55 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Hawk`S Nest Point
Groundwater 53 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Northtown Village
Groundwater 53 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Ball Point
Groundwater 51 people served
0 violations
Lead tested: 1.94 ppb (limit: 15 ppb) ✓
Norman Acres Subdivision
Groundwater 50 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Peete River Farm
Purchased surface water 50 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Springfield Christian Day Care
Groundwater 50 people served
0 violations
Chesapeake Cove
Groundwater 50 people served
0 violations
Granite Hall Shores
Purchased surface water 50 people served
0 violations
Lead tested: 1.79 ppb (limit: 15 ppb) ✓
Waverly Subdivision
Groundwater 49 people served
0 violations
Green, The
Groundwater 48 people served
0 violations
Rockville Center - Gym
Groundwater 48 people served
0 violations
Catalpa Subdivision
Groundwater 48 people served
0 violations
Maryfield Sub.
Groundwater 48 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Black Creek Subdivision
Groundwater 48 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Sloop Pointe
Groundwater 45 people served
0 violations
Lead tested: 0.6 ppb (limit: 15 ppb) ✓
Churchfields
Groundwater 45 people served
0 violations
Lead tested: 0.54 ppb (limit: 15 ppb) ✓
Schoolhouse Meadows
Groundwater 45 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb) ✓
Daingerfield Subdivision
Groundwater 43 people served
0 violations
Lead tested: 0.62 ppb (limit: 15 ppb) ✓
Forest View Subdivision
Groundwater 43 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Browns Store
Groundwater 42 people served
0 violations
Lead tested: 0.67 ppb (limit: 15 ppb) ✓
Lane View Subdivision
Groundwater 39 people served
0 violations
Lead tested: 1.25 ppb (limit: 15 ppb) ✓
Wolftrap Woods
Groundwater 38 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Rolling Acres
Groundwater 36 people served
0 violations
Tanglewood Section A
Groundwater 35 people served
0 violations
Lead tested: 3.1 ppb (limit: 15 ppb) ✓
Westover Estates
Groundwater 35 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Valley View
Groundwater 33 people served
0 violations
Lead tested: 0.56 ppb (limit: 15 ppb) ✓
Rockville Center - Main Bldg
Groundwater 30 people served
0 violations
Sunnybrook Subdivision
Groundwater 30 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pleasant View Estates
Groundwater 28 people served
0 violations
Springwood Subdivision
Groundwater 28 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Hazel River
Groundwater 28 people served
0 violations
Gibson Mills Subdivision
Groundwater 25 people served
0 violations
Lead tested: 2.11 ppb (limit: 15 ppb) ✓ Copper tested: 6000 ppb (limit: 1300 ppb)
Wicomico Ridge
Groundwater 25 people served
0 violations
Lead tested: 2.7 ppb (limit: 15 ppb) ✓
Ashmore Acres
Groundwater 25 people served
0 violations
Overlook Heights Ii
Groundwater 25 people served
0 violations
Highbank
Groundwater 25 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Holly Grove Estates
Groundwater 25 people served
0 violations
Milburn Subdivision
Groundwater 25 people served
0 violations
Lead tested: 0.7 ppb (limit: 15 ppb) ✓
Contaminants Found
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-Based
1 violation
All resolved
TTHMHealth-Based
1 violation
All resolved
Revised Total Coliform RuleMonitoring
Missed testing deadlines — not a detection of bacteria.
5 violations
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
2 violations
All resolved
E. COLIMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jan 2025
Copper (Cu)
Exceeds limit6000 ppb measured
Action level: 1300 ppb
Sampled: Jan 2022
How Does This Compare?
Rockville (23146) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
Fewer violations 67th percentile More violations
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.