Water Quality in La Plata, MD (20646)
EPA violation data for public water systems serving ZIP code 20646.
Past Health-Based Violations
5 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 43 monitoring/reporting violations.
More violations than 79% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
21,400
Population
106
Water Systems
48
Violations (5yr)
5
Health-Based
Location
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Water Systems Serving This Area (106)
Waldorf - Charles County Dpw
All resolved Purchased surface water 84,296 people served
1 violation (5yr)
· All resolved
Town Of La Plata
Groundwater 11,535 people served
0 violations
Bryans Road
All resolved Groundwater 6,260 people served
1 violation (5yr)
· All resolved
La Plata
Groundwater 1,700 people served
0 violations
Strawberry Hills - See 0080033
Groundwater 1,500 people served
0 violations
Laurel Branch
Groundwater 1,305 people served
0 violations
College Of Southern Md - Main Campus
1 health-based Groundwater 1,220 people served
3 violations (5yr)
· 1 health-based · All resolved
Lead tested: 1.5 ppb (limit: 15 ppb) ✓
Henry E. Lackey High School
Groundwater 1,187 people served
0 violations
Jiffy Mart #1711
Groundwater 1,120 people served
0 violations
Maurice J. Mcdonough High School
Groundwater 1,050 people served
0 violations
Stethem Ed Cntr & James Craik Elementary
Groundwater 1,028 people served
0 violations
Welcome Center (Newburg)
Groundwater 1,004 people served
0 violations
Interstate Shell (Toano)
Groundwater 950 people served
0 violations
Swan Point
All resolved Groundwater 945 people served
1 violation (5yr)
· All resolved
Eutaw Forest
Groundwater 760 people served
0 violations
Cliffton On The Potomac
All resolved Groundwater 744 people served
2 violations (5yr)
· All resolved
Piccowaxen Middle School
Groundwater 722 people served
0 violations
Hunters Brooke/Falcon Ridge Subd
All resolved Groundwater 614 people served
1 violation (5yr)
· All resolved
T.C. Martin Elementary School
Groundwater 609 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb) ✓
New Life Church
Groundwater 525 people served
0 violations
New Life Wesleyan Church- La Plata
Groundwater 520 people served
0 violations
College Of Southern Md - Calvert Campus
Groundwater 501 people served
0 violations
Gale-Bailey Elementary
Groundwater 497 people served
0 violations
Dr. Thomas Higdon Elementary
Groundwater 488 people served
0 violations
Malcolm Elementary School
Groundwater 446 people served
0 violations
Coll. Of So. Md Trades & Energy Training
1 health-based Groundwater 402 people served
3 violations (5yr)
· 1 health-based · All resolved
Mt. Hope/ Nanjemoy Elementary School
Groundwater 385 people served
0 violations
Benedict
All resolved Groundwater 376 people served
1 violation (5yr)
· All resolved
Woodland Vlg-Va Development Co
Groundwater 320 people served
0 violations
Bel Alton
All resolved Groundwater 311 people served
2 violations (5yr)
· All resolved
Robert Stethem Memorial Park
Groundwater 300 people served
0 violations
Chapel Point Wds/ Jude House/ Comm Ctr
All resolved Groundwater 280 people served
1 violation (5yr)
· All resolved
Charles Co. Dpw
Groundwater 265 people served
0 violations
Ellenwood
All resolved Groundwater 229 people served
1 violation (5yr)
· All resolved
Cape St Claire Shell
All resolved Groundwater 204 people served
3 violations (5yr)
· All resolved
White Plains Park-Concession
Groundwater 200 people served
0 violations
Mariellen Park
All resolved Groundwater 184 people served
1 violation (5yr)
· All resolved
College Of So. Md Health Sciences Center
All resolved Groundwater 175 people served
1 violation (5yr)
· All resolved
Lead tested: 2.9 ppb (limit: 15 ppb) ✓
Mount Carmel Woods
All resolved Groundwater 175 people served
1 violation (5yr)
· All resolved
Newtown Village
All resolved Groundwater 170 people served
2 violations (5yr)
· All resolved
Newtown Estates Water Company
Groundwater 156 people served
0 violations
Turkey Hill Water Company
All resolved Groundwater 150 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Brewskis, Loveville Tavern
Groundwater 150 people served
0 violations
Beantown Park- Woodley Road
All resolved Groundwater 127 people served
1 violation (5yr)
· All resolved
Newtown Water Co Inc
Groundwater 120 people served
0 violations
Mattawoman W.W.T.P.
1 health-based Groundwater 110 people served
2 violations (5yr)
· 1 health-based · All resolved
Lead tested: 7 ppb (limit: 15 ppb) ✓
Port Tobacco Dept Of Community Services
1 health-based Groundwater 102 people served
3 violations (5yr)
· 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Oak Ridge Park
Groundwater 102 people served
0 violations
Calvary Grace Assembly
Groundwater 100 people served
0 violations
First Baptist Church Of Laplata
Groundwater 99 people served
0 violations
Spring Valley
All resolved Groundwater 91 people served
2 violations (5yr)
· All resolved
Dentsville Trading Company, Inc.
1 health-based Groundwater 90 people served
2 violations (5yr)
· 1 health-based · All resolved
Laplata Baptist Church
Groundwater 85 people served
0 violations
Mariellen Park
Groundwater 85 people served
0 violations
Avon Crest
All resolved Groundwater 79 people served
1 violation (5yr)
· All resolved
Mt Carmel Wds-Carmel Wtr Co In
Groundwater 76 people served
0 violations
Laurel Springs Park
Groundwater 75 people served
0 violations
Texas Ribs And Bbq
All resolved Groundwater 75 people served
3 violations (5yr)
· All resolved
Bethel Baptist Church
Groundwater 75 people served
0 violations
Duttons Addition
Groundwater 60 people served
0 violations
Gilbert Run Park
Groundwater 58 people served
0 violations
Colony 7 Shell
Groundwater 56 people served
0 violations
Jessup Shell Food Market
All resolved Groundwater 52 people served
1 violation (5yr)
· All resolved
Fishing Creek Pool
All resolved Groundwater 51 people served
1 violation (5yr)
· All resolved
Parkway Subdivision Water Company
All resolved Groundwater 50 people served
1 violation (5yr)
· All resolved
Charles Co. Fairgrounds Inc
All resolved Groundwater 50 people served
3 violations (5yr)
· All resolved
Charles Motor Court
Groundwater 50 people served
0 violations
Bryantown Park
Groundwater 50 people served
0 violations
Pisgah Park
Groundwater 50 people served
0 violations
Bensville Park
Groundwater 50 people served
0 violations
West White Plains Water Co Inc
Groundwater 48 people served
0 violations
Robyns Nest / Childrens Corner
Groundwater 46 people served
0 violations
Oakwood
All resolved Groundwater 45 people served
1 violation (5yr)
· All resolved
Parkway Water Co Inc
Groundwater 44 people served
0 violations
Parkway Water Co Inc
Groundwater 44 people served
0 violations
Matthews Water Works
Groundwater 44 people served
0 violations
Bumpy Oaks Alternative School
Groundwater 41 people served
0 violations
Jude House/ Bel Alton Com Ctr-0080064
Groundwater 30 people served
0 violations
The Greens Wine And Spirits
Groundwater 25 people served
0 violations
Charles Motor Court
Groundwater 25 people served
0 violations
Heismans
Groundwater 25 people served
0 violations
La Plata Amoco
Groundwater 25 people served
0 violations
Franklin Catering
Groundwater 25 people served
0 violations
Kent Island Gateway Shell
Groundwater 25 people served
0 violations
Amvets Post 13
Groundwater 25 people served
0 violations
Freedom Landing
Groundwater 25 people served
0 violations
Pomonkey Annex Warehouse
Groundwater 25 people served
0 violations
Wawa Food Market Store # 584
Groundwater 25 people served
0 violations
Village Country Pub
Groundwater 25 people served
0 violations
Charles Motor Court
Groundwater 25 people served
0 violations
Charles Soil Conservation District
Groundwater 19 people served
0 violations
Willing Helpers Society
Groundwater 15 people served
0 violations
Johnnys Inn
Groundwater 1 people served
0 violations
Johnny Boy Ribs And Restaurant
Groundwater 0
0 violations
Trinity Episcopal Church
All resolved Groundwater 0
1 violation (5yr)
· All resolved
Zee Best Cafe Too
Groundwater 0
0 violations
Good Times Restaurant And Bar
Groundwater 0
0 violations
Potomac Branch Library I/C Md0080003
Groundwater 0
0 violations
Brookwood Estates (I/C 0080049)
Groundwater 0
0 violations
Gilligans Pier And Seafood
Groundwater 0
0 violations
Matthew Henson Middle Sch(I/C 0080034)
Groundwater 0
0 violations
Bensville - Connected To 0080049 Waldorf
Groundwater 0
0 violations
Stagg Hall
Groundwater 0
0 violations
J.C. Parks Elementary
Groundwater 0
0 violations
Chicamuxen United Methodist Church
Groundwater 0
0 violations
Cleveland Park Estates
Groundwater 0
0 violations
Contaminants Found
LEAD AND COPPER RULE REVISIONSHealth-Based
10 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
18 violations
All resolved
Revised Total Coliform RuleMonitoring
Missed testing deadlines — not a detection of bacteria.
13 violations
All resolved
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
4 violations
All resolved
FluorideMonitoring
2 violations
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit2 ppb measured
Action level: 15 ppb
Sampled: Jan 2025
How Does This Compare?
La Plata (20646) has more violations than 79% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 48.
Fewer violations 79th 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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 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.