Water systems with the most health-based violations since 2016

Name: Water systems with the most health-based violations since 2016
Creator: Tap Water Results
License: https://www.usa.gov/government-works

Community water systems ranked by the number of health-based violations (a limit exceeded or a required treatment step missed) since January 2016.

#	Water system	State	People	Violations
1	City of Brady Water System	TX	5,371	359
2	May Valley WA Water System	CO	1,500	333
3	Hominy Water System	OK	2,584	215
4	Barnsdall Water System	OK	1,243	191
5	Stormlight Mobile Home Park Water System	TX	76	166
6	Valley Estates Water System	TX	68	164
7	Cassie Water System	TX	106	162
8	Waukesha Water Utility	WI	70,718	160
9	Tempe Water Supply Corporation 1	TX	2,725	160
10	Sardis Lake Water Authority	OK	307	148
11	Millersview Doole Water Supply Corporation	TX	3,987	147
12	Maysville Water System	OK	1,212	147
13	Wewoka Public Works Authority	OK	3,450	140
14	City of Nome	TX	825	136
15	City of Lindsay	CA	12,659	133
16	Grassland Water Supply Corporation	TX	55	132
17	Valley Water Company	CO	270	129
18	Cleveland Municipal Authority	OK	3,262	129
19	Waurika Public Works Authority	OK	2,100	127
20	Franklin Water Systems 3	TX	201	124
21	Tri County Special Utility District	TX	5,353	124
22	Beggs Public Works Authority	OK	1,364	122
23	Country View MHP	TX	54	121
24	Ryan Utilities Authority	OK	800	116
25	South Swink Water Authority	CO	622	113
26	Muskogee County Rural Water District #5	OK	4,135	108
27	Osage County Rural Water District # 5	OK	561	108
28	Osage County Rural Water District #20 (HULAH)	OK	350	107
29	City of Rose City	TX	664	106
30	Okmulgee Public Works Authority	OK	13,495	104
31	Seven Estates Water System	TX	189	104
32	Pittsburg County Rural Water District #14	OK	1,680	103
33	Pushmataha County Rural Water District #3	OK	4,825	101
34	Grindstone Rancheria Water System	CA	150	100
35	Fairfax Water System	OK	1,555	98
36	Forest Water Supply Corporation	TX	651	98
37	Stringtown Public Works Authority	OK	1,105	98
38	City of Seagraves	TX	2,417	98
39	Vixen Water System	LA	750	92
40	Southern Okla Water Corp	OK	11,250	91
41	Town North Estates Water System	TX	216	91
42	PRASA Metropolitano	PR	1.1 million	91
43	Abraxas Utilities	TX	792	91
44	Camino Real Regional Utility Authority	NM	21,930	89
45	Boswell Public Works Authority	OK	932	89
46	Choctaw County Rwsg & Swmd #6	OK	850	88
47	Okmulgee County Rural Water District #1	OK	1,890	86
48	Beehive Water Association	CO	154	86
49	Fairview Union Water System	LA	2,346	86
50	Terrells Mobile Home Park Water System	TX	60	85
51	Avant Utilities Authority	OK	361	85
52	Lakewood Water System	TX	48	84
53	Haskell Public Works Authority – Swp	OK	250	84
54	Mission Creek Water Association	ID	263	84
55	Eakly Development Corp Water System	OK	277	83
56	Barksdale Water Supply Corporation	TX	279	83
57	Idabel Public Works Authority	OK	6,952	83
58	Highland Court Water System	TX	90	83
59	City of Smyer	TX	474	82
60	Council Creek Village Water System	TX	333	82
61	Asher Utilities Dev Authority	OK	375	81
62	South Silver Creek I II & III	TX	291	80
63	South Council Creek 2 Water System	TX	111	80
64	Village of Tullos Water System	LA	792	80
65	Alberta Water System	LA	1,860	80
66	Kickapoo Tribal Waterworks	KS	520	79
67	Knoll Enterprises Water System	CA	500	79
68	Live Oak Hills Subdivision	TX	65	78
69	Weiss Estates Water System	OR	36	78
70	Town of Ferriday Water System	LA	3,816	78
71	Town of Denton	MT	255	77
72	Pittsburg Water System	OK	280	77
73	Madera County Md1 – Hidden Lake Estates	CA	162	76
74	Muskogee County Rural Water District #6	OK	2,550	76
75	City of Huxley	TX	1,930	76
76	Welch Water Supply Corporation	TX	315	75
77	Rainbird Valley Mutual Water Company	CA	238	75
78	Patterson Valley Water Company	CO	96	74
79	Rosemount Water Company	NV	54	74
80	Hugo Municipal Authority	OK	5,536	74
81	Pendleton Water Association	LA	2,634	74
82	Okmulgee County Rural Water District #6 (Hectorville)	OK	8,370	73
83	Pecan Tree Water Association	OK	22	73
84	R.S. Mutual Water Company	CA	35	73
85	Eufaula Public Works Authority	OK	2,766	72
86	Eureka Water Company	CO	498	72
87	Pushmataha County Rural Water District #5 (Nashoba)	OK	725	72
88	Holdenville Water System	OK	4,732	72
89	Spiro East Water Association	OK	1,817	72
90	Kotzebue Municipal. Water System	AK	3,234	72
91	Arimak Water Supply	TX	105	72
92	Miami Water Users Association	NM	135	71
93	City of Riesel	TX	1,476	70
94	Fort Belknap Agency Water System	MT	2,600	70
95	Village of Sikes Water System	LA	639	70
96	Wanette Public Works Authority	OK	402	70
97	London Water Company – Op	OR	63	69
98	Bellwood Water System	LA	1,032	69
99	West Winn Water System, Inc	LA	1,965	68
100	Lakeland Services	TX	63	68

A PFAS result above the limit is not a violation: systems have until 2029 to comply, and EPA says UCMR 5 results do not indicate compliance. Method.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.