All water systems in Maryland
57 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Frederick Frederick County |
28,000 | 0 | 0 | |
|
Francis Scott Key Frederick · Frederick County |
5,400 | 0 | 0 | |
|
Calvert High School See 0040011 Prince Frederick · Calvert County |
1,450 | 0 | 0 | |
|
Woodspring See 010-0017 Frederick · Frederick County |
840 | 1 | 1 | |
|
Urbana Elementary Frederick · Frederick County |
805 | 0 | 0 | |
|
Calvert Career Center See 0040011 Prince Frederick · Calvert County |
800 | 0 | 0 | |
|
Eastalco Aluminum Co. Frederick · Frederick County |
770 | 0 | 0 | |
|
Mount View Middle School Frederick · Howard County |
620 | 0 | 0 | |
|
New Market West Frederick · Frederick County |
516 | 0 | 0 | |
|
Linganore High School Frederick · Frederick County |
350 | 0 | 0 | |
|
Greater MT Zion Baptist Church 1041256 Prince Frederick · Calvert County |
200 | 0 | 0 | |
|
Lewistown Elementary Frederick · Frederick County |
200 | 0 | 0 | |
|
Yellow Springs Elementary Frederick · Frederick County |
200 | 0 | 0 | |
|
Frederick Trading/monocacy Valley School Frederick County |
190 | 0 | 0 | |
|
Clustered Spires Golf Course Frederick · Frederick County |
125 | 0 | 0 | |
|
D.m. Bowman Inc. Frederick · Frederick County |
110 | 0 | 0 | |
|
D.m. Bowman Inc. Frederick · Frederick County |
110 | 0 | 0 | |
|
Cloverhill Pool(see 1101335) Frederick · Frederick County |
100 | 0 | 0 | |
|
Copley Cement Company Frederick · Frederick County |
100 | 0 | 0 | |
|
Woodbridge Mason Road Served 0040011 Prince Frederick · Calvert County |
100 | 0 | 0 | |
|
Southern Pines Elderly House-See 0040027 Prince Frederick · Calvert County |
93 | 0 | 0 | |
|
Yellow Springs Lions Club Frederick · Frederick County |
70 | 0 | 0 | |
|
Parkers Creek Knolls Prince Frederick · Calvert County |
60 | 0 | 0 | |
|
FT Frederick ST Park-Picnic Area 1211031 Baltimore · Washington County |
43 | 0 | 0 | |
|
Cracked Claw Connected to 010-0030 Frederick · Frederick County |
40 | 0 | 0 | |
|
Fred CO Emerg Services Training Facility Frederick · Frederick County |
40 | 0 | 0 | |
|
Bayside Chevrolet Buick Toyota Prince Frederick · Calvert County |
34 | 0 | 0 | |
|
Blue Ridge Oil Co. Frederick · Frederick County |
25 | 0 | 0 | |
|
Blue Ridge Oil Co. Frederick · Frederick County |
25 | 0 | 0 | |
|
Bridge Diner Prince Frederick · Calvert County |
25 | 0 | 0 | |
|
Eastalco Aluminum CO Frederick · Frederick County |
25 | 0 | 0 | |
|
Frederick Glass Frederick County |
25 | 0 | 0 | |
|
Frederick Livestock Auction Frederick County |
25 | 0 | 0 | |
|
Genstar/frederick Quarry Frederick · Frederick County |
25 | 0 | 0 | |
|
Mountaindale General Store Frederick · Frederick County |
25 | 0 | 0 | |
|
MT Olive UM Church Prince Frederick · Calvert County |
25 | 0 | 0 | |
|
Mullininx Grain and Fert. Co. Frederick · Frederick County |
25 | 0 | 0 | |
|
Mullininx Grain and Fert. Co. Frederick · Frederick County |
25 | 0 | 0 | |
|
Romsburg Enterprises Frederick · Frederick County |
25 | 0 | 0 | |
|
Romsburg Enterprises Frederick · Frederick County |
25 | 0 | 0 | |
|
Route 231 Citgo Prince Frederick · Calvert County |
25 | 0 | 0 | |
|
Triangle Outdoor World Frederick · Frederick County |
25 | 0 | 0 | |
|
VFW Post 3285, Dutches Daughters 1240 Frederick · Frederick County |
25 | 0 | 0 | |
|
Leeland Mechanical Frederick · Frederick County |
24 | 0 | 0 | |
|
Double D's Sports Prince Frederick · Calvert County |
10 | 0 | 0 | |
|
Bradco-Wickes Lumber Frederick · Frederick County |
6 | 0 | 0 | |
|
Matteson Supply Company Prince Frederick · Calvert County |
2 | 0 | 0 | |
|
Calvert County Jail See 0040011 Prince Frederick · Calvert County |
0 | 0 | 0 | |
|
Flag Harbor Pool Prince Frederick · Calvert County |
0 | 0 | 0 | |
|
Fountaindale North Frederick · County |
0 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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 Maryland 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.