Biggest water systems with PFAS above the federal limit

Name: Biggest water systems with PFAS above the federal limit
Creator: Tap Water Results
License: https://www.usa.gov/government-works

Every water system with at least one PFAS entry-point average above a 2024 federal limit, largest first.

#	Water system	State	People
1	MDWASA – Main System	FL	2.4 million
2	Philadelphia Water Department	PA	1.6 million
3	Fairfax County Water Authority	VA	1.1 million
4	Suffolk County Water Authority	NY	1.1 million
5	PRASA Metropolitano	PR	1.1 million
6	City of Fort Worth	TX	955,900
7	Aqua Pennsylvania Main System	PA	822,600
8	Cincinnati Public Water System	OH	800,000
9	Veolia Water New Jersey Hackensack	NJ	792,713
10	El Paso Water Utilities	TX	747,168
11	City of Tampa Water Department	FL	733,886
12	Palm Beach County Water Utilities	FL	671,114
13	New Jersey American Water – Raritan	NJ	615,430
14	City of Fresno	CA	545,970
15	City of Sacramento Main	CA	527,979
16	Hillsborough County Water Resources – South-Central	FL	515,012
17	Truckee Meadows Water Authority	NV	442,000
18	Regional Water Authority	CT	418,900
19	New Jersey American Water – Coastal North	NJ	377,613
20	City of Vancouver	WA	373,047
21	City of Columbia	SC	354,068
22	City of Anaheim	CA	350,254
23	City of Durham	NC	333,490
24	City of Greensboro	NC	319,588
25	City of Santa Ana	CA	316,184
26	Passaic Valley Water Commission	NJ	310,483
27	Huntsville Utilities Water Dept.	AL	310,107
28	Clayton County Water Authority	GA	298,374
29	Newark Water Department	NJ	294,274
30	Santa Clarita Valley Water Agency	CA	292,014
31	Charleston Water System	SC	278,771
32	Veolia Water New York	NY	270,000
33	California Water Service – Bakersfield	CA	268,129
34	Jersey City Municipal Utilities Authority	NJ	262,000
35	Grand Strand Water & Sewer Authority/Bull Creek	SC	252,840
36	Town of Gilbert	AZ	247,600
37	Emerald Coast Utilities Authority (ECUA)	FL	242,172
38	City of Hialeah	FL	238,000
39	Artesian Water Company	DE	231,114
40	Columbus Water System	GA	229,000
41	Fayetteville Public Works Commission	NC	226,441
42	Anchorage Water & Wastewater Utility	AK	221,351
43	City of Modesto	CA	218,915
44	New Jersey American Water – Short Hills	NJ	217,230
45	Pasco County Utilities – Regional Public Water System	FL	214,403
46	Orange County Utilities – Western Regional Water System	FL	206,742
47	Augusta-Richmond County Water System	GA	204,000
48	City of Grand Prairie	TX	201,843
49	Brownsville Public Utilities Board	TX	201,249
50	City of Huntington Beach	CA	201,000
51	City of Tallahassee	FL	200,480
52	Kalamazoo Water System	MI	192,992
53	City of Stockton	CA	192,702
54	City of Glendale Water Dept.	CA	192,212
55	SCWA – Laguna/Vineyard	CA	188,417
56	City of Pembroke Pines	FL	187,459
57	Ontario Municipal Utilities Company	CA	185,010
58	Sweetwater Authority	CA	184,915
59	Western Virginia Water Authority	VA	182,700
60	North Miami Beach Water System	FL	180,000
61	City of Garden Grove	CA	174,226
62	City of Bakersfield	CA	171,108
63	Prince William Water – East	VA	168,747
64	City of Tempe	AZ	165,000
65	Beaufort-Jasper Water & Sewer Authority	SC	164,829
66	Clark Public Utilities	WA	153,526
67	California Water Service – Visalia	CA	153,522
68	City of Pomona Water Dept.	CA	151,713
69	Brunswick County Water System	NC	151,357
70	Montgomery County Water Services 1 Public Water System	OH	150,207
71	City of Hollywood	FL	147,566
72	Rancho California Water District	CA	146,147
73	Hernando County Utilities – West	FL	145,204
74	California Water Service – East Los Angeles	CA	142,140
75	Dayton Public Water System	OH	141,407
76	City of Palm Bay	FL	140,750
77	City of Fullerton	CA	140,054
78	Guam Waterworks Authority – Northern Water System	GU	139,207
79	Illinois American Water – Peoria	IL	137,575
80	Pennsylvania American Water – Lake Scranton	PA	137,142
81	City of Clovis	CA	133,118
82	Clermont Public Water System	OH	133,059
83	City of Abilene	TX	130,501
84	Boca Raton Water Treatment Plant	FL	130,000
85	California American Water – Monterey	CA	128,928
86	PRASA – Aguadilla	PR	124,782
87	Stafford County Utilities	VA	123,684
88	Manchester Water Works	NH	123,500
89	Veolia Water New Jersey Toms River	NJ	123,184
90	Harnett Regional Water	NC	121,885
91	City of Concord	NC	120,771
92	City of Orange	CA	120,770
93	New Jersey American Water – Atlantic County	NJ	120,146
94	City of Lancaster	PA	120,000
95	Water Authority of Western Nassau	NY	120,000
96	City of High Point	NC	118,662
97	City of Kennewick	WA	118,164
98	Broken Arrow Municipal Authority	OK	116,330
99	South Bend Water Works	IN	115,000
100	Golden State Water Company – West Orange County	CA	114,693

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.