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National ranking · EPA SDWIS

Water Systems With the Most Violations

The 100 U.S. public water systems carrying the most recorded Safe Drinking Water Act violations, ordered by total citations in EPA's compliance database.

100
Systems ranked
11,570
Most at one system
189
Top system serves

The verdict

Seven Estates leads the nation with 11,570 recorded EPA violations - 4% of them health-based; the #100 cutoff to make this top-100 list is City of Wolfforth at 2,333 violations.

11,570
Violations at Seven Estates
2,333
#100 cutoff to make this list
3,037
Median across this top-100 list
TX
State of the #1 system

Top 12 systems by total violations

Longer bars = more recorded Safe Drinking Water Act violations

violations

What this shows Seven Estates sits well above the rest of the list, with 11,570 citations on record in EPA SDWIS.

Source EPA Safe Drinking Water Information System (SDWIS) As of Current EPA release

Full ranking, top 100 systems

The Total column's bar is proportional to Seven Estates's count, the highest in this list. Hover or focus a bar for its exact share of the leader and rank. Total violations are cumulative since each system's own EPA monitoring start year (shown in Since), not a fixed reporting window -- a system monitored for decades has had far more opportunity to accumulate violations than one monitored for a few years, so compare the Since year alongside the count rather than by magnitude alone.

# System Location Population Since Total Health
1 Seven Estates Wolfforth, TX 189 1988 11,570 100.0% of the leader · rank #1 · violations 476
2 Pinnacle Water Association Rock, WV 85 1979 11,356 98.2% of the leader · rank #2 · violations 108
3 Coal Mountain Water Coal Mountain, WV 80 1979 10,707 92.5% of the leader · rank #3 · violations 63
4 Congregation Ohr Menachem Canadensis, PA 30 1979 9,908 85.6% of the leader · rank #4 · violations 45
5 Lake Forest Park Water District Lake Forest Park, WA 3,171 1981 9,527 82.3% of the leader · rank #5 · violations 15
6 Timber Creek MHP East & West McLoud, OK 40 1984 9,081 78.5% of the leader · rank #6 · violations 2
7 Eastside MHP Tuttle, OK 32 2002 7,572 65.4% of the leader · rank #7 · violations 32
8 Skyview Estates Momence, IL 56 1981 7,512 64.9% of the leader · rank #8 · violations 33
9 Circle H MHP Aberdeen, NC 68 1980 6,905 59.7% of the leader · rank #9 · violations 172
10 Salem Heights Estate Lake Ariel, PA 62 1988 6,572 56.8% of the leader · rank #10 · violations 120
11 Franklin Water Systems 3 Des Peres, TX 201 1980 6,516 56.3% of the leader · rank #11 · violations 823
12 Hiawatha Water Matoaka, WV 63 1979 5,589 48.3% of the leader · rank #12 · violations 55
13 PA American Audubon Norristown, PA 8,200 1979 5,456 47.2% of the leader · rank #13 · violations 23
14 Satsop Business Park Aberdeen, WA 544 1983 5,255 45.4% of the leader · rank #14 · violations 3
15 27 Maple Drive Monroe, CT 38 2010 5,163 44.6% of the leader · rank #15 · violations 0
16 Windmill Estates Momence, IL 65 1993 5,042 43.6% of the leader · rank #16 · violations 4
17 Valley Estates Shallowater, TX 68 1989 4,987 43.1% of the leader · rank #17 · violations 752
18 Willow Springs MHP Greenfield, IN 25 1981 4,792 41.4% of the leader · rank #18 · violations 65
19 Aqua PA Sun Valley Whitehaven, PA 120 1980 4,752 41.1% of the leader · rank #19 · violations 0
20 Carmel Montessori Academy Warrenville, IL 40 1981 4,386 37.9% of the leader · rank #20 · violations 5
21 Marble Water System Northport, WA 94 2019 4,269 36.9% of the leader · rank #21 · violations 1
22 Prague Prague, OK 2,395 1980 4,153 35.9% of the leader · rank #22 · violations 15
23 Kelley Crest Woodland, WA 45 1996 4,066 35.1% of the leader · rank #23 · violations 8
24 Oak Hill Acres Mobile Home Subdivision Houston, TX 81 1980 3,979 34.4% of the leader · rank #24 · violations 2
25 Frankfort Psd Fort Ashby, WV 6,747 1979 3,932 34.0% of the leader · rank #25 · violations 13
26 Dabob Cove Community Quilcene, WA 24 1985 3,893 33.6% of the leader · rank #26 · violations 5
27 Seneca Trail Christian Academy Ronceverte, WV 100 1992 3,797 32.8% of the leader · rank #27 · violations 12
28 Criswell Court MHP Joliet, IL 94 1981 3,770 32.6% of the leader · rank #28 · violations 56
29 Imagination Station Academy, LLC Wake Forest, NC 35 1989 3,749 32.4% of the leader · rank #29 · violations 23
30 Country View MHP Shallowater, TX 54 2002 3,651 31.6% of the leader · rank #30 · violations 396
31 City of Brady Water System Brady, TX 5,371 1980 3,578 30.9% of the leader · rank #31 · violations 3,349
32 Cobbs Lake Preserve Lake Ariel, PA 200 2004 3,507 30.3% of the leader · rank #32 · violations 93
33 West Jackson Co Utility Dist Ocean Springs, MS 28,544 1998 3,503 30.3% of the leader · rank #33 · violations 4
34 Robinwood Village Saylorsburg, PA 70 2003 3,499 30.2% of the leader · rank #34 · violations 84
35 Vista del Rio Mobile Home Park Vancouver, WA 352 1981 3,450 29.8% of the leader · rank #35 · violations 4
36 Akhiok Akhiok, AK 90 1981 3,426 29.6% of the leader · rank #36 · violations 29
37 Paradise Stream Resor Mount Pocono, PA 774 1980 3,309 28.6% of the leader · rank #37 · violations 20
38 Mount Eagle Water Assoc Howard, PA 130 1979 3,283 28.4% of the leader · rank #38 · violations 3
39 Nottingham Manor M H Court Nottingham, PA 473 1987 3,266 28.2% of the leader · rank #39 · violations 8
40 Lewis River Golf Course Kelso, WA 300 1987 3,259 28.2% of the leader · rank #40 · violations 1
41 Congregation Beth Judea Waukegan, IL 25 1981 3,204 27.7% of the leader · rank #41 · violations 2
42 Plymouth Community Church Plymouth, IN 90 1981 3,151 27.2% of the leader · rank #42 · violations 8
43 Blue Ridge Mobile Home Park Hunt, TX 75 1987 3,136 27.1% of the leader · rank #43 · violations 233
44 Diomede Joint Utilities Diomide, AK 83 1981 3,125 27.0% of the leader · rank #44 · violations 259
45 Christ Mission Lutheran Church Manhattan, IL 150 1983 3,123 27.0% of the leader · rank #45 · violations 5
46 Turkey Pen MHP Cary, NC 229 1980 3,092 26.7% of the leader · rank #46 · violations 22
47 Malta City Of Malta, MT 1,800 1979 3,072 26.6% of the leader · rank #47 · violations 0
48 Warren Road Subdivision Water Supply Barker, TX 195 1985 3,063 26.5% of the leader · rank #48 · violations 90
49 Tower Springs LLC Malvern,, PA 25 1997 3,062 26.5% of the leader · rank #49 · violations 0
50 Tempo Lake Water Co Port Orchard, WA 246 1981 3,044 26.3% of the leader · rank #50 · violations 23
51 Neshaminy Manor Center Warrington, PA 2,100 1980 3,037 26.2% of the leader · rank #51 · violations 4
52 Patton Village West Water System Splendora, TX 1,457 1980 3,017 26.1% of the leader · rank #52 · violations 3
53 Lee Limas Mobile Home Park Canutillo, TX 39 1991 3,001 25.9% of the leader · rank #53 · violations 2
54 Sunrise Lakes Sec 12 Moscow, PA 125 1989 2,993 25.9% of the leader · rank #54 · violations 0
55 Walnut Cove, Town Of Walnut Cove, NC 2,210 1980 2,973 25.7% of the leader · rank #55 · violations 33
56 Waukesha Water Utility Waukesha, WI 70,718 1981 2,969 25.7% of the leader · rank #56 · violations 2,447
57 Save a Pet Waukegan, IL 50 2008 2,953 25.5% of the leader · rank #57 · violations 0
58 Newport Boro Water Auth Newport, PA 3,200 1979 2,935 25.4% of the leader · rank #58 · violations 33
59 T L Water Jones Acres Newark, TX 120 1980 2,913 25.2% of the leader · rank #59 · violations 5
60 Ambler Boro Water Dept Ambler, PA 20,000 1979 2,896 25.0% of the leader · rank #60 · violations 14
61 American Precision Elctronics Carol Stream, IL 60 2004 2,881 24.9% of the leader · rank #61 · violations 0
62 Pine Country Living MHP McLoud, OK 100 1980 2,879 24.9% of the leader · rank #62 · violations 22
63 Happy Camper RV Park Pagosa Springs, CO 40 1983 2,875 24.8% of the leader · rank #63 · violations 10
64 Walnut Park Estates Prue, OK 42 1990 2,854 24.7% of the leader · rank #64 · violations 27
65 South Midland County Water System Houston, TX 165 1985 2,848 24.6% of the leader · rank #65 · violations 337
66 Creekside South Estates Metro District Windsor, CO 160 2017 2,820 24.4% of the leader · rank #66 · violations 25
67 Helena RV and Mobile Home Park Hailey, MT 250 1979 2,806 24.3% of the leader · rank #67 · violations 0
68 Estates at Bromley Hudson, CO 150 2005 2,787 24.1% of the leader · rank #68 · violations 0
69 Derby Ing Houston, TX 174 1999 2,768 23.9% of the leader · rank #69 · violations 2
70 Los Botines WSC Laredo, TX 54 2013 2,755 23.8% of the leader · rank #70 · violations 0
71 Rock Creek Edmond, OK 33 1980 2,734 23.6% of the leader · rank #71 · violations 4
72 McConnellsburg Boro Muni Auth Mc Connellsburg, PA 2,000 1979 2,725 23.6% of the leader · rank #72 · violations 0
73 Brooksville Tecumseh, OK 90 1982 2,724 23.5% of the leader · rank #73 · violations 255
74 Pueblo del Sol Water Company Sierra Vista, AZ 12,804 1979 2,721 23.5% of the leader · rank #74 · violations 28
75 Town of Aberdeen Aberdeen, MS 7,783 1979 2,703 23.4% of the leader · rank #75 · violations 2
76 Genesee Twp Water Authority Genesee, PA 450 1979 2,701 23.3% of the leader · rank #76 · violations 29
77 Bullhead City Mohave Bullhead City, AZ 36,330 1979 2,669 23.1% of the leader · rank #77 · violations 9
78 Rha Health Services, LLC Charlotte, NC 363 1987 2,659 23.0% of the leader · rank #78 · violations 0
79 Tel Company 3 Freeland, WA 75 1986 2,633 22.8% of the leader · rank #79 · violations 4
80 Key Road Subdivision Water System Bloomington, TX 54 2007 2,592 22.4% of the leader · rank #80 · violations 6
81 Keesler Air Force Base Biloxi, MS 8,006 1979 2,534 21.9% of the leader · rank #81 · violations 13
82 West Roosevelt Mobile Home Park Lubbock, TX 95 1998 2,524 21.8% of the leader · rank #82 · violations 20
83 Forming America Ltd West Chicago, IL 40 2006 2,507 21.7% of the leader · rank #83 · violations 4
84 Native Village of Sleetmute Anchorage, AK 82 1992 2,494 21.6% of the leader · rank #84 · violations 46
85 Forest River - Rance Aluminum, Div. 46 Mishawaka, IN 40 2000 2,489 21.5% of the leader · rank #85 · violations 11
86 English Acres Leander, TX 90 1993 2,485 21.5% of the leader · rank #86 · violations 9
87 Oilton Oilton, OK 1,435 1980 2,466 21.3% of the leader · rank #87 · violations 4
88 Peoria City Of Peoria, AZ 187,676 1979 2,461 21.3% of the leader · rank #88 · violations 15
89 Taggares Fruit Co Burbank, WA 152 2004 2,455 21.2% of the leader · rank #89 · violations 7
90 Barnsdall Barnsdall, OK 1,243 1980 2,431 21.0% of the leader · rank #90 · violations 1,929
91 Ridgecrest Stroudsburg, PA 55 1996 2,429 21.0% of the leader · rank #91 · violations 8
92 Sellers Estates Mobile Home Comm Pearland, TX 85 1980 2,408 20.8% of the leader · rank #92 · violations 2
93 Loma Linda Water Supply Collinsville, TX 216 2009 2,398 20.7% of the leader · rank #93 · violations 8
94 Country Glen Townhomes Effort, PA 50 1981 2,397 20.7% of the leader · rank #94 · violations 0
95 Mother Teresa Catholic Academy Crete, IL 220 1981 2,381 20.6% of the leader · rank #95 · violations 4
96 Lewis Co Water Dist #2 Onalaska, WA 1,983 1981 2,344 20.3% of the leader · rank #96 · violations 2
97 Alakanuk Water System Alakanuk, AK 570 1981 2,344 20.3% of the leader · rank #97 · violations 130
98 Roulette Twp Water Authority Roulette, PA 1,300 1979 2,343 20.3% of the leader · rank #98 · violations 16
99 Kensington Place S/D Birmingham, NC 61 2013 2,343 20.3% of the leader · rank #99 · violations 27
100 City of Wolfforth Wolfforth, TX 9,600 1980 2,333 20.2% of the leader · rank #100 · violations 1,995

Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.