Lead Contamination

Lead in Utah Drinking Water

Ranked by 90th percentile lead level (ppb) · Data from EPA SDWIS & UCMR

176

Cities Tested

Exceeds Limit

% Exceeds Limit

3.2 ppb

State Avg

▼ 0% vs national

vs National

150

Health Violations

Analysis

Lead in Utah: what the data shows

Utah has 176 cities with lead monitoring data, with very few cities exceeding the EPA action level of 15 ppb. The state average 90th percentile lead level is 3.2 ppb, compared to 3.3 ppb nationally — better than the national average. 4 cities exceed the 15 ppb action level. High lead levels in tap water typically indicate aging infrastructure — lead service lines, lead solder in older plumbing, or lead-containing brass fixtures. There is no safe level of lead exposure for children. The 90th percentile measurement means that 90% of tap samples in a city are at or below the reported level. This is the standard EPA uses under the Lead and Copper Rule to determine if a water system needs to take corrective action. An NSF 53-certified pitcher or under-sink filter can effectively remove lead at the tap.

Comparison

Cities exceeding 15 ppb EPA Action Level

Utah

4 of 176 cities

← = Exactly at national rate

National avg

378 of 15681 cities

City Map

Lead data across Utah

Each dot is a city, colored by overall water quality grade. Cities with lead levels above the 15 ppb EPA action level are highlighted. Size reflects population served.

Worst Offenders

Top 10 cities by lead level in Utah

Highest Lead levels (ppb)

All Cities

All Utah cities ranked by lead level

#	City	Level	Exceeds?	Violations	Grade
1	Monticello	49.0 ppb	Yes	15	F
2	Smithfield	46.0 ppb	Yes	3	F
3	Tooele	17.9 ppb	Yes	5	F
4	North Salt Lake	16.0 ppb	Yes	4	C-
5	Vernal	13.7 ppb	No	1	C+
6	Farmington	13.5 ppb	No	14	B-
7	River Heights	11.7 ppb	No	6	B+
8	Paradise	11.3 ppb	No	19	C-
9	Tropic	9.8 ppb	No	4	D
10	Goshen	7.7 ppb	No	4	B
11	Alta	7.5 ppb	No	2	C+
12	Bountiful	7.2 ppb	No	9	D
13	Tridell	7.1 ppb	No	1	A-
14	Honeyville	6.7 ppb	No	9	B+
15	Beaver	6.4 ppb	No	2	B
16	Park City	6.1 ppb	No	10	F
17	Billings	6.0 ppb	No	1	B
18	Deweyville	6.0 ppb	No	20	C-
19	Fruit Heights	5.9 ppb	No	1	B-
20	Torrey	5.8 ppb	No	8	B
21	Draper	5.6 ppb	No	18	F
22	Veyo	5.4 ppb	No	5	A-
23	Roosevelt	5.3 ppb	No	3	D
24	Saratoga Springs	5.0 ppb	No	16	F
25	Corinne	5.0 ppb	No	6	B-
26	Elsinore	5.0 ppb	No	31	D+
27	Bear River	4.8 ppb	No	9	B+
28	Ephraim	4.5 ppb	No	1	A-
29	Heber City	4.3 ppb	No	34	F
30	Benson	4.2 ppb	No	1	A-
31	Altamont	4.1 ppb	No	2	B+
32	Layton	4.1 ppb	No	1	A-
33	Millville	4.0 ppb	No	8	A-
34	Woodland Hills	4.0 ppb	No	4	B
35	Herriman	3.8 ppb	No	13	D+
36	St George	3.8 ppb	No	20	D
37	Garland	3.8 ppb	No	1	C-
38	Lehi	3.7 ppb	No	17	F
39	Clarkston	3.7 ppb	No	2	A-
40	Morgan	3.5 ppb	No	28	D
41	Wellsville	3.4 ppb	No	16	D+
42	Stansbury Park	3.4 ppb	No	15	C+
43	Virgin	3.4 ppb	No	0	A-
44	Riverton	3.3 ppb	No	1	B+
45	Santaquin	3.3 ppb	No	1	D
46	Plain City	3.3 ppb	No	2	B
47	Sandy	3.2 ppb	No	13	F
48	Hurricane	3.1 ppb	No	8	C+
49	Mona	3.1 ppb	No	4	A-
50	Fountain Green	3.1 ppb	No	0	B
51	Hinckley	3.1 ppb	No	7	C+
52	Mayfield	3.1 ppb	No	0	A-
53	Ogden	3.0 ppb	No	5	F
54	West Point	3.0 ppb	No	5	B
55	Fillmore	3.0 ppb	No	0	A-
56	Fairview	3.0 ppb	No	2	A-
57	Clevland	3.0 ppb	No	1	A
58	Orem	2.9 ppb	No	76	F
59	Nephi	2.9 ppb	No	2	A-
60	Eagle Mountain	2.8 ppb	No	25	D
61	Kamas	2.8 ppb	No	54	D
62	Castledale	2.7 ppb	No	3	D+
63	Helper	2.7 ppb	No	1	A-
64	Syracuse	2.6 ppb	No	3	B-
65	Bluffdale	2.5 ppb	No	7	C
66	Francis	2.5 ppb	No	2	B
67	Erda	2.5 ppb	No	3	A-
68	Leeds	2.5 ppb	No	18	B
69	Mapleton	2.4 ppb	No	4	C+
70	Parowan	2.4 ppb	No	20	D+
71	Kaysville	2.3 ppb	No	7	C+
72	Elwood	2.3 ppb	No	8	B-
73	Ivins	2.3 ppb	No	6	B+
74	Uintah City	2.3 ppb	No	0	A-
75	Aurora	2.3 ppb	No	0	A-
76	La Verkin	2.2 ppb	No	1	A-
77	Woods Cross	2.2 ppb	No	0	A-
78	Mount Pleasant	2.2 ppb	No	17	C+
79	Manila	2.2 ppb	No	23	C-
80	Grantsville	2.1 ppb	No	7	C
81	Montpelier	2.1 ppb	No	0	A
82	Gunnison	2.0 ppb	No	12	A-
83	Mendon	2.0 ppb	No	1	A
84	Salt Lake City	1.9 ppb	No	26	F
85	Brigham City	1.9 ppb	No	14	C-
86	Manti	1.9 ppb	No	1	B+
87	Spring City	1.9 ppb	No	10	B+
88	Washington Terrace	1.8 ppb	No	0	A-
89	Duchesne	1.8 ppb	No	8	F
90	Monroe	1.8 ppb	No	0	A-
91	Fruitland	1.8 ppb	No	15	B
92	Montua	1.8 ppb	No	7	B-
93	Minersville	1.8 ppb	No	0	A
94	Escalante	1.8 ppb	No	3	C+
95	Moab	1.7 ppb	No	10	D
96	Roy	1.7 ppb	No	1	B-
97	Magna	1.7 ppb	No	1	B+
98	Centerfield	1.7 ppb	No	2	D+
99	Jensen	1.7 ppb	No	1	A-
100	Orderville	1.7 ppb	No	5	A
101	Farr West	1.6 ppb	No	7	B-
102	Oak City	1.6 ppb	No	8	B+
103	Paragonah	1.6 ppb	No	9	A-
104	Hyrum	1.5 ppb	No	0	A
105	Mountain Green	1.5 ppb	No	9	B
106	Monument Valley	1.5 ppb	No	6	D+
107	Myton	1.5 ppb	No	0	B+
108	Annabella	1.5 ppb	No	9	A-
109	Levan	1.5 ppb	No	1	A-
110	Newton	1.5 ppb	No	1	A-
111	Stockton	1.5 ppb	No	2	A-
112	St George City	1.4 ppb	No	4	B+
113	Price	1.4 ppb	No	5	D
114	Fielding	1.4 ppb	No	12	C+
115	West Jordan	1.3 ppb	No	7	C+
116	Kearns	1.3 ppb	No	6	B
117	Payson	1.3 ppb	No	19	D
118	Millcreek	1.3 ppb	No	3	A
119	Perry	1.3 ppb	No	2	A-
120	Blanding	1.3 ppb	No	9	F
121	Green River	1.3 ppb	No	5	B+
122	Henefer	1.3 ppb	No	0	A
123	Lincoln	1.3 ppb	No	1	B-
124	Kanosh	1.3 ppb	No	2	B+
125	Midway	1.3 ppb	No	23	D+
126	Talmage	1.2 ppb	No	0	A
127	Lewiston	1.2 ppb	No	1	A
128	Genola	1.2 ppb	No	1	A
129	Springdale	1.1 ppb	No	0	A-
130	North Ogden	1.1 ppb	No	13	D
131	Coalville	1.1 ppb	No	21	F
132	Richfield	1.1 ppb	No	13	A-
133	Willard	1.1 ppb	No	10	B
134	Rocky Ridge	1.1 ppb	No	4	A
135	South Rim	1.1 ppb	No	6	A
136	Circleville	1.1 ppb	No	3	C+
137	Hildale	1.0 ppb	No	2	F
138	Ft. Duchesne	1.0 ppb	No	18	F
139	Dammeron Valley	1.0 ppb	No	5	B
140	Tabiona	1.0 ppb	No	13	C-
141	Spanish Fork	0.9 ppb	No	26	F
142	Heber	0.9 ppb	No	6	D
143	Clinton	0.9 ppb	No	9	C+
144	West Haven	0.8 ppb	No	2	B+
145	Taylorsville	0.8 ppb	No	0	B+
146	Wellington	0.8 ppb	No	0	B+
147	Wendover	0.8 ppb	No	2	A-
148	Riverdale	0.7 ppb	No	0	B+
149	Cedar City	0.7 ppb	No	115	F
150	Panguitch	0.7 ppb	No	0	B+
151	Santa Clara	0.6 ppb	No	0	B+
152	Morni	0.6 ppb	No	2	D
153	South Jordan	0.6 ppb	No	4	C+
154	Central Valley	0.5 ppb	No	2	B-
155	Bullfrog	0.3 ppb	No	0	B-
156	Provo	0.0 ppb	No	45	D
157	Springville	0.0 ppb	No	8	C
158	Tremonton	0.0 ppb	No	27	D
159	Kanab	0.0 ppb	No	14	D+
160	Eden	0.0 ppb	No	27	D
161	Delta	0.0 ppb	No	20	D
162	Oakley	0.0 ppb	No	17	D
163	Enterprise	0.0 ppb	No	15	B-
164	Salina	0.0 ppb	No	0	A-
165	Toquerville	0.0 ppb	No	1	A
166	East Carbon	0.0 ppb	No	6	B
167	Milford	0.0 ppb	No	3	A
168	Hideout	0.0 ppb	No	0	A
169	New Harmony	0.0 ppb	No	26	D+
170	Redmond	0.0 ppb	No	4	A
171	Loa	0.0 ppb	No	11	B+
172	Eureka	0.0 ppb	No	5	D+
173	Apple Valley	0.0 ppb	No	28	D
174	City	0.0 ppb	No	3	A-
175	South Beloit	0.0 ppb	No	0	A-
176	Dutch John	0.0 ppb	No	0	B

FAQ

Frequently asked questions about lead in Utah

Is lead in Utah tap water a concern?

Yes — 4 of 176 cities with lead data exceed the EPA action level of 15 ppb. The state average is 3.2 ppb. Even below the action level, lead poses health risks especially for children and pregnant women. If your home was built before 1986, consider testing your tap water directly.

How can I reduce lead exposure from Utah tap water?

Use an NSF 53-certified water filter, which is specifically certified to reduce lead. Run your cold tap for 30 seconds before drinking or cooking, especially if water has been sitting in pipes for hours. Never use hot tap water for cooking or making baby formula, as heat increases lead leaching from pipes.

Which Utah cities have the highest lead levels?

The cities with the highest 90th percentile lead levels in Utah are: Monticello (49.0 ppb), Smithfield (46.0 ppb), Tooele (17.9 ppb), North Salt Lake (16.0 ppb), Vernal (13.7 ppb). See the full ranked table above.

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