Wentzville (MO) Water Quality

Wentzville is a large public water system in EPA region 07 that provides tap water for the 63385 zip codes. It has 2 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 17.3 µg/L. The maximum reported level of Manganese was 7.4 µg/L. There were 2 contamintants found in the Wentzville water supply at levels that were above the minimum reporting level. 0 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1-butanol

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<2.0 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<2.0 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<2.0 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L
Contaminant Details

2-methoxyethanol

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.4 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.4 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.4 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 21 µg/L
Contaminant Details

2-propen-1-ol (Allyl Alcohol)

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.5 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.5 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.5 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 35 µg/L
Contaminant Details

HAA5 (five regulated haloacetic acids)

300�Essex�Park�Dr.
Distribution System ℹ️
28.8%
17.3 µg/L
Meets Reporting Threshold
12/16/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
24.4%
14.62 µg/L
Meets Reporting Threshold
12/16/2019
5 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
34.4%
20.65 µg/L
Meets Reporting Threshold
9/24/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
31.3%
18.77 µg/L
Meets Reporting Threshold
9/24/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
39%
23.39 µg/L
Meets Reporting Threshold
6/17/2019
6 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
38.6%
23.18 µg/L
Meets Reporting Threshold
6/17/2019
6 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
21.1%
12.63 µg/L
Meets Reporting Threshold
4/15/2019
6 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
20.2%
12.09 µg/L
Meets Reporting Threshold
4/15/2019
6 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 60 µg/L
Contaminant Details

HAA6Br (six brominated haloacetic acids)

300�Essex�Park�Dr.
Distribution System ℹ️
0%
7.52 µg/L
12/16/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
5.8 µg/L
12/16/2019
5 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
0%
5.02 µg/L
9/24/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
4.24 µg/L
9/24/2019
5 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
0%
6.35 µg/L
6/17/2019
6 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
6.1 µg/L
6/17/2019
6 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
0%
5.63 µg/L
4/15/2019
6 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
5.53 µg/L
4/15/2019
6 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

HAA9 (nine haloacetic acids)

300�Essex�Park�Dr.
Distribution System ℹ️
0%
23.72 µg/L
12/16/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
19.7 µg/L
12/16/2019
5 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
0%
25.12 µg/L
9/24/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
22.54 µg/L
9/24/2019
5 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
29 µg/L
6/17/2019
6 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
0%
28.98 µg/L
6/17/2019
6 years ago
300�Essex�Park�Dr.
Distribution System ℹ️
0%
17.53 µg/L
4/15/2019
6 years ago
400�Perry�Cate�Dr.
Distribution System ℹ️
0%
16.83 µg/L
4/15/2019
6 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

alpha-hexachlorocyclohexane

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.01 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.01 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.01 µg/L
Reference Level: 0.006 µg/L
Contaminant Details

anatoxin-a

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/3/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/13/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/1/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/15/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
4/1/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/18/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

Butylated Hydroxyanisole

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

chlorpyrifos

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 2 µg/L
Contaminant Details

cylindrospermopsin

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/3/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/13/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/1/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
4/15/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
4/1/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
3/18/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.09 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.09 µg/L
Reference Level: 0.7 µg/L
Contaminant Details

dimethipin

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 140 µg/L
Contaminant Details

ethoprop

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 1.14 µg/L
Contaminant Details

Germanium

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

Manganese

Entry Point to the Dist. System
Connection from St. Charles ℹ️
2.5%
7.4 µg/L
Meets Reporting Threshold
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0.3%
1 µg/L
Meets Reporting Threshold
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0.9%
2.6 µg/L
Meets Reporting Threshold
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
5.3%
15.8 µg/L
Meets Reporting Threshold
3/4/2019
6 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 300 µg/L
Contaminant Details

o-toluidine

Entry Point to the Dist. System
Connection from St. Charles ℹ️
957.1%
.067 µg/L
⚠️ Exceeds Reporting Level of 0.007 µg/L by 0.06 µg/L
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.007 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
1328.6%
.093 µg/L
⚠️ Exceeds Reporting Level of 0.007 µg/L by 0.086 µg/L
3/4/2019
6 years ago
Minimum Reporting Level: 0.007 µg/L
Reference Level: ?
Contaminant Details

oxyfluorfen

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.05 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.05 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.05 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.05 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.05 µg/L
Reference Level: 200 µg/L
Contaminant Details

profenofos

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

quinoline

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.02 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.02 µg/L
Reference Level: 0.01 µg/L
Contaminant Details

tebuconazole

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.2 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 190 µg/L
Contaminant Details

Total Microcystin

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/3/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/13/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/1/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
4/15/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
4/1/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/18/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

Total Permethrin

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.04 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.04 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.04 µg/L
Reference Level: 3.344 µg/L
Contaminant Details

tribufos

Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/16/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.07 µg/L
Below Reporting Level
9/24/2019
5 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/17/2019
6 years ago
Entry Point to the Dist. System
Connection from St. Charles ℹ️
0%
<0.07 µg/L
Below Reporting Level
3/4/2019
6 years ago
Minimum Reporting Level: 0.07 µg/L
Reference Level: 0.6 µg/L
Contaminant Details

Sampling Facilities

Connection from St. Charles
Surface Water (SW)

Entry Point to the Dist. SystemEP

Distribution System
Surface Water (SW)

300EssexParkDr.DS
400PerryCateDr.DS

FAQ

Is Wentzville tap water safe to drink?

When was Wentzville last tested for water contamination?

The latest water samples were taken between June 17th, 2019 and December 16th, 2019.