Lead and Copper Rule (LCR) violations in Delaware
52 active public water systems in Delaware had a Lead and Copper Rule (LCR) violation in the past three years, 52 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.
Health effects: Lead: no safe level for children. Causes irreversible neurological damage, impaired cognitive development, behavioral problems, and reduced IQ in children under 6. In adults: hypertension, cardiovascular disease, kidney damage. Copper: acute gastrointestinal distress at high levels; liver/kidney damage at very high chronic levels.
Systems with a Lead and Copper Rule (LCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Harrington Water Department Harrington · Kent County |
3,562 | 1 | 1 | |
|
Angola Beach Estates Lewes · Sussex County |
1,400 | 1 | 1 | |
|
Blades, Town of Seaford · Sussex County |
1,400 | 1 | 1 | |
|
Frederica Water Department Frederica · Kent County |
1,100 | 1 | 1 | |
|
Laurel Village MHC Laurel · Sussex County |
918 | 1 | 1 | |
|
Cape Windsor Community Association INC Fenwick Island · Sussex County |
600 | 2 | 1 | |
|
Tall Pines Resort Community Sys1 Lewes · Sussex County |
538 | 1 | 1 | |
|
Henlopen Acres, Town of Rehoboth Beach · Sussex County |
522 | 1 | 1 | |
|
Sussex County Industrial Airpark Georgetown · Sussex County |
450 | 1 | 1 | |
|
Silver View Farm Rehoboth Beach · Sussex County |
398 | 1 | 1 | |
|
Sand Hill Acres Georgetown · Sussex County |
384 | 1 | 1 | |
|
Hartly Elementary School Hartly · Kent County |
375 | 1 | 1 | |
|
Forest Grove Pump District Hartly · Kent County |
330 | 1 | 1 | |
|
Carey Estates, LLC Millsboro · Sussex County |
312 | 1 | 1 | |
|
Kitts Hummock Improvement Assoc Dover · Kent County |
305 | 1 | 1 | |
|
County Seat Gardens Georgetown · Sussex County |
297 | 3 | 2 | |
|
Briarwood Manor MHP Laurel · Sussex County |
296 | 1 | 1 | |
|
Delaware State Fire School Dover · Kent County |
228 | 2 | 2 | |
|
Pine Ridge Mobile Home Park Seaford · Sussex County |
222 | 2 | 2 | |
|
Hanover Foods Corporation Clayton · Kent County |
217 | 1 | 1 | |
|
Holly Oak Mobile Home Park Delmar · Sussex County |
210 | 1 | 1 | |
|
Meadows at Cubbage Pond Lincoln · Sussex County |
201 | 1 | 1 | |
|
Sussex Manor Mobile Home Park Seaford · Sussex County |
195 | 1 | 1 | |
|
Todds Mobile Court Seaford · Sussex County |
189 | 1 | 1 | |
|
Woodlands of Millsboro Pump District Millsboro · Sussex County |
177 | 1 | 1 | |
|
Centreville Layton School System I Centerville · New Castle County |
170 | 1 | 1 | |
|
Colonial Estates Mobile Home Park Millsboro · Sussex County |
165 | 2 | 1 | |
|
Oak Grove Estates Little Creek · Kent County |
150 | 2 | 2 | |
|
The Little Campus, LLC Middletown · New Castle County |
134 | 1 | 1 | |
|
Twin Maples Trailer Park Kenton · Kent County |
123 | 1 | 1 | |
|
Bethany Crest LLC Millville · Sussex County |
115 | 3 | 1 | |
|
Serenity Manor Estates Felton · Kent County |
110 | 2 | 2 | |
|
Messick's MHC LLC System 5 Harrington · Kent County |
97 | 1 | 1 | |
|
Hartly Mobile Home Park Hartly · Kent County |
90 | 2 | 2 | |
|
J & J MHP Felton · Kent County |
84 | 2 | 1 | |
|
Shell's Early Learning Center-Harrington Harrington · Kent County |
83 | 2 | 2 | |
|
Delaware Turnpike Administration Newark · New Castle County |
80 | 1 | 1 | |
|
Blanton's Manufactured Home Community Cheswold · Kent County |
75 | 1 | 1 | |
|
Messick's MHC LLC System 4 Harrington · Kent County |
72 | 1 | 1 | |
|
Central Christian School Dover · Kent County |
71 | 1 | 1 | |
|
Mother Goose Children's Center Millsboro · Sussex County |
70 | 1 | 1 | |
|
Messick's MHC LLC System 6 Harrington · Kent County |
63 | 1 | 1 | |
|
Discovery Cove Learning Center Laurel · Sussex County |
55 | 1 | 1 | |
|
Lakeside Home LLC Seaford · Sussex County |
50 | 1 | 1 | |
|
Law Mobile Home Park Camden-wyoming · Kent County |
50 | 2 | 2 | |
|
Village Square Academy Learning Center Millville · Sussex County |
50 | 1 | 1 | |
|
Messick's MHC LLC System 3 Harrington · Kent County |
45 | 1 | 1 | |
|
Hy-Point Dairy Farms Rockland · New Castle County |
43 | 1 | 1 | |
|
Woodland Trailer Court Smyrna · Kent County |
41 | 1 | 1 | |
|
Lotus Blossom Learning Center Lewes · Sussex County |
40 | 1 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule (LCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule (LCR) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Delaware records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.