Wentzville (MO) Water Quality

Wentzville is a large public water system in EPA region 7 that provides tap water for the 63348, 63385 zip codes. It has 7 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 23.39 µg/L. The maximum reported level of Manganese was 15.8 µg/L. There were 2 contamintants found in the Wentzville water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (4)
1,2,3-trichloropropane (4)
1,3-butadiene (4)
1,4-dioxane (4)
1-butanol (3)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (8)
1H,1H,2H,2H-perfluorodecane sulfonic acid (8)
1H,1H,2H,2H-perfluorohexane sulfonic acid (8)
1H,1H,2H,2H-perfluorooctane sulfonic acid (8)
2-methoxyethanol (3)
2-propen-1-ol (Allyl Alcohol) (3)
4,8-dioxa-3H-perfluorononanoic acid (8)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (8)
alpha-hexachlorocyclohexane (4)
anatoxin-a (8)
bromochloromethane (Halon 1011) (4)
bromomethane (4)
Butylated Hydroxyanisole (4)
chlorate (8)
chlorodifluoromethane (HCFC-22) (4)
chloromethane (4)
chlorpyrifos (4)
chromium (8)
chromium-6 (8)
cobalt (8)
cylindrospermopsin (8)
dimethipin (4)
ethoprop (4)
Germanium (4)
HAA5 (five regulated haloacetic acids) (8)
HAA6Br (six brominated haloacetic acids) (8)
HAA9 (nine haloacetic acids) (8)
hexafluoropropylene oxide dimer acid (GenX) (8)
lithium (8)
Manganese (4)
molybdenum (8)
N-ethyl perfluorooctanesulfonamidoacetic acid (8)
N-methyl perfluorooctanesulfonamidoacetic acid (8)
nonafluoro-3,6-dioxaheptanoic acid (8)
o-toluidine (4)
oxyfluorfen (4)
perfluoro(2-ethoxyethane)sulfonic acid (8)
perfluoro-3-methoxypropanoic acid (8)
perfluoro-4-methoxybutanoic acid (8)
perfluorobutanesulfonic acid (12)
perfluorobutanoic acid (8)
perfluorodecanoic acid (8)
perfluorododecanoic acid (8)
perfluoroheptanesulfonic acid (8)
perfluoroheptanoic acid (12)
perfluorohexanesulfonic acid (12)
perfluorohexanoic acid (8)
perfluorononanoic acid (12)
perfluorooctanesulfonic acid (12)
perfluorooctanoic acid (12)
perfluoropentanesulfonic acid (8)
perfluoropentanoic acid (8)
perfluorotetradecanoic acid (8)
perfluorotridecanoic acid (8)
perfluoroundecanoic acid (8)
profenofos (4)
quinoline (4)
strontium (8)
tebuconazole (4)
total microcystins (8)
Total Permethrin (4)
tribufos (4)
vanadium (8)

1,1-dichloroethane (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,2,3-trichloropropane (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,3-butadiene (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.1 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.1 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.1 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.1 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.1 µg/L
Reference Level: ?

Contaminant Details

1,4-dioxane (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

0.14 µg/L

⚠️ Exceeds Reporting Level of 0.07 µg/L by 0.07 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.07 µg/L
Reference Level: ?

Contaminant Details

1-butanol (3)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<2 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<2 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<2 µg/L

Below Reporting Level

3/4/2019

6 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

2-methoxyethanol (3)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.4 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.4 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<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) (3)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.5 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.5 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<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

4,8-dioxa-3H-perfluorononanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

alpha-hexachlorocyclohexane (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 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 (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

6/3/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

5/13/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

5/1/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

4/15/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

4/1/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

3/18/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

bromochloromethane (Halon 1011) (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.06 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.06 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.06 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

0.36 µg/L

⚠️ Exceeds Reporting Level of 0.06 µg/L by 0.3 µg/L

1/7/2013

12 years ago

Minimum Reporting Level: 0.06 µg/L
Reference Level: ?

Contaminant Details

bromomethane (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Butylated Hydroxyanisole (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

3/4/2019

6 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

chlorate (8)

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

193 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 173 µg/L

7/21/2014

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

341 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 321 µg/L

6/24/2014

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

332 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 312 µg/L

6/24/2014

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

402 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 382 µg/L

3/31/2014

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<20 µg/L

Below Reporting Level

3/31/2014

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<20 µg/L

Below Reporting Level

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<20 µg/L

Below Reporting Level

1/7/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

<20 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 20 µg/L
Reference Level: ?

Contaminant Details

chlorodifluoromethane (HCFC-22) (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.08 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.08 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.08 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

0.23 µg/L

⚠️ Exceeds Reporting Level of 0.08 µg/L by 0.15 µg/L

1/7/2013

12 years ago

Minimum Reporting Level: 0.08 µg/L
Reference Level: ?

Contaminant Details

chloromethane (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chlorpyrifos (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 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

chromium (8)

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.97 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.77 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1.88 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.68 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1.55 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.35 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.3 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.88 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.68 µg/L

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

4/23/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

2.1 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.9 µg/L

1/7/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

0.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.2 µg/L

1/7/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chromium-6 (8)

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 1.67 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 1.47 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 1.67 µg/L

7/25/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 1.67 µg/L

7/25/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.8 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 1.77 µg/L

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

2.18 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 2.15 µg/L

1/7/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

cobalt (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<1 µg/L

Below Reporting Level

10/17/2013

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<1 µg/L

Below Reporting Level

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/17/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<1 µg/L

Below Reporting Level

4/23/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<1 µg/L

Below Reporting Level

1/7/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

cylindrospermopsin (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

6/3/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

5/13/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

5/1/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

4/15/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

4/1/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

3/18/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 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 (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 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 (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 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 (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

3/4/2019

6 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

HAA5 (five regulated haloacetic acids) (8)

300¿Essex¿Park¿Dr.

Distribution System ℹ️

17.3 µg/L

Meets Reporting Threshold

12/16/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

14.62 µg/L

Meets Reporting Threshold

12/16/2019

5 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

20.65 µg/L

Meets Reporting Threshold

9/24/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

18.77 µg/L

Meets Reporting Threshold

9/24/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

23.39 µg/L

Meets Reporting Threshold

6/17/2019

6 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

23.18 µg/L

Meets Reporting Threshold

6/17/2019

6 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

12.63 µg/L

Meets Reporting Threshold

4/15/2019

6 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

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) (8)

300¿Essex¿Park¿Dr.

Distribution System ℹ️

7.52 µg/L

12/16/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

5.8 µg/L

12/16/2019

5 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

5.02 µg/L

9/24/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

4.24 µg/L

9/24/2019

5 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

6.35 µg/L

6/17/2019

6 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

6.1 µg/L

6/17/2019

6 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

5.63 µg/L

4/15/2019

6 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

5.53 µg/L

4/15/2019

6 years ago

Minimum Reporting Level: 0 µg/L
Reference Level: ?

Contaminant Details

HAA9 (nine haloacetic acids) (8)

300¿Essex¿Park¿Dr.

Distribution System ℹ️

23.72 µg/L

12/16/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

19.7 µg/L

12/16/2019

5 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

25.12 µg/L

9/24/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

22.54 µg/L

9/24/2019

5 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

29 µg/L

6/17/2019

6 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

28.98 µg/L

6/17/2019

6 years ago

300¿Essex¿Park¿Dr.

Distribution System ℹ️

17.53 µg/L

4/15/2019

6 years ago

400¿Perry¿Cate¿Dr.

Distribution System ℹ️

16.83 µg/L

4/15/2019

6 years ago

Minimum Reporting Level: 0 µg/L
Reference Level: ?

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

lithium (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

22 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 13 µg/L

12/9/2024

9 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

44.5 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 35.5 µg/L

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

43.9 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 34.9 µg/L

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

20.1 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 11.1 µg/L

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

13.8 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 4.8 µg/L

6/12/2024

15 months ago

WELL # 5

WENTZVILLE PWS ℹ️

48.4 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 39.4 µg/L

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

46.3 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 37.3 µg/L

3/11/2024

18 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

27.4 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 18.4 µg/L

3/11/2024

18 months ago

Minimum Reporting Level: 9 µg/L
Reference Level: ?

Contaminant Details

Manganese (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

7.4 µg/L

Meets Reporting Threshold

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1 µg/L

Meets Reporting Threshold

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

2.6 µg/L

Meets Reporting Threshold

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

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

molybdenum (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

3.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.2 µg/L

10/17/2013

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

3.09 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.09 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

2.89 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.89 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

2.83 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.83 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

2.45 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.45 µg/L

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1.02 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.02 µg/L

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

2.5 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.5 µg/L

1/7/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

2.4 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 1.4 µg/L

1/7/2013

12 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

10/16/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

10/16/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.006 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.006 µg/L
Reference Level: ?

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.02 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.02 µg/L
Reference Level: ?

Contaminant Details

o-toluidine (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

0.067 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

<0.007 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.007 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

0.093 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 (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.05 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.05 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.05 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.05 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

perfluoro(2-ethoxyethane)sulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoro-3-methoxypropanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoro-4-methoxybutanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanesulfonic acid (12)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.09 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

perfluorodecanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorododecanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanesulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanoic acid (12)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.01 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanesulfonic acid (12)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.03 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorononanoic acid (12)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanesulfonic acid (12)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanoic acid (12)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

7/25/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

4/29/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanesulfonic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorotetradecanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

10/16/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.008 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.008 µg/L
Reference Level: ?

Contaminant Details

perfluorotridecanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

10/16/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

10/16/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.007 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.007 µg/L
Reference Level: ?

Contaminant Details

perfluoroundecanoic acid (8)

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

12/9/2024

9 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

9/23/2024

11 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

9/23/2024

11 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

6/12/2024

15 months ago

CC 1 ST CHARLES CO#2 MO6024530

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL #6 TREATMENT

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

18 months ago

WELL # 5

WENTZVILLE PWS ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

18 months ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

profenofos (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 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 (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.02 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

strontium (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

246 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 245.7 µg/L

10/17/2013

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

241 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 240.7 µg/L

10/17/2013

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

204 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 203.7 µg/L

7/17/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

202 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 201.7 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

218 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 217.7 µg/L

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

156 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 155.7 µg/L

4/23/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

225.2 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 224.9 µg/L

1/7/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

224.2 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 223.9 µg/L

1/7/2013

12 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

tebuconazole (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 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 microcystins (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

6/3/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

5/13/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

5/1/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

4/15/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

4/1/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

3/18/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.3 µg/L

Below Reporting Level

3/4/2019

6 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

Total Permethrin (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.04 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 (4)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 µg/L

Below Reporting Level

12/16/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 µg/L

Below Reporting Level

9/24/2019

5 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 µg/L

Below Reporting Level

6/17/2019

6 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.07 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

vanadium (8)

Entry Point to the Dist. System

Connection from St. Charles ℹ️

1.69 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.49 µg/L

10/17/2013

11 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.45 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.25 µg/L

10/17/2013

11 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

2.16 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.96 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

1.93 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 1.73 µg/L

7/17/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

0.54 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.34 µg/L

4/23/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

4/23/2013

12 years ago

2686 Providence Ridge Dr. (Site #52)

Distribution System ℹ️

0.4 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.2 µg/L

1/7/2013

12 years ago

Entry Point to the Dist. System

Connection from St. Charles ℹ️

<0.2 µg/L

Below Reporting Level

1/7/2013

12 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Sampling Facilities

WENTZVILLE PWS
Surface Water (SW)

CC 1 ST CHARLES CO#2 MO6024530Entry Point to the Distribution System (EP)

WENTZVILLE PWS
Ground Water (GW)

WELL #6 TREATMENTEntry Point to the Distribution System (EP)

WENTZVILLE PWS
Ground Water (GW)

WELL # 5Entry Point to the Distribution System (EP)

Connection from St. Charles
Surface Water (SW)

Entry Point to the Dist. SystemEntry Point to the Distribution System (EP)

Distribution System
Surface Water (SW)

300¿Essex¿Park¿Dr.Distribution System (DS)

400¿Perry¿Cate¿Dr.Distribution System (DS)

Distribution System
Surface Water (SW)

2686 Providence Ridge Dr. (Site #52)Maximum Residence Time (MR)

WELL #5
Ground Water (GW)

add ucmr sp nameEntry Point to the Distribution System (EP)

FAQ

Is Wentzville tap water safe to drink?

When was Wentzville last tested for water contamination?

The latest water samples were taken on December 9th, 2024.

Contaminants

1,1-dichloroethane (4)

1,2,3-trichloropropane (4)

1,3-butadiene (4)

1,4-dioxane (4)

1-butanol (3)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (8)

1H,1H,2H,2H-perfluorodecane sulfonic acid (8)

1H,1H,2H,2H-perfluorohexane sulfonic acid (8)

1H,1H,2H,2H-perfluorooctane sulfonic acid (8)

2-methoxyethanol (3)

2-propen-1-ol (Allyl Alcohol) (3)

4,8-dioxa-3H-perfluorononanoic acid (8)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (8)

alpha-hexachlorocyclohexane (4)

anatoxin-a (8)

bromochloromethane (Halon 1011) (4)

bromomethane (4)

Butylated Hydroxyanisole (4)

chlorate (8)

chlorodifluoromethane (HCFC-22) (4)

chloromethane (4)

chlorpyrifos (4)

chromium (8)

chromium-6 (8)

cobalt (8)

cylindrospermopsin (8)

dimethipin (4)

ethoprop (4)

Germanium (4)

HAA5 (five regulated haloacetic acids) (8)

HAA6Br (six brominated haloacetic acids) (8)

HAA9 (nine haloacetic acids) (8)

hexafluoropropylene oxide dimer acid (GenX) (8)

lithium (8)

Manganese (4)

molybdenum (8)

N-ethyl perfluorooctanesulfonamidoacetic acid (8)

N-methyl perfluorooctanesulfonamidoacetic acid (8)

nonafluoro-3,6-dioxaheptanoic acid (8)

o-toluidine (4)

oxyfluorfen (4)

perfluoro(2-ethoxyethane)sulfonic acid (8)

perfluoro-3-methoxypropanoic acid (8)

perfluoro-4-methoxybutanoic acid (8)

perfluorobutanesulfonic acid (12)

perfluorobutanoic acid (8)

perfluorodecanoic acid (8)

perfluorododecanoic acid (8)

perfluoroheptanesulfonic acid (8)

perfluoroheptanoic acid (12)

perfluorohexanesulfonic acid (12)

perfluorohexanoic acid (8)

perfluorononanoic acid (12)

perfluorooctanesulfonic acid (12)

perfluorooctanoic acid (12)

perfluoropentanesulfonic acid (8)

perfluoropentanoic acid (8)

perfluorotetradecanoic acid (8)

perfluorotridecanoic acid (8)

perfluoroundecanoic acid (8)

profenofos (4)

quinoline (4)

strontium (8)

tebuconazole (4)

total microcystins (8)

Total Permethrin (4)

tribufos (4)

vanadium (8)

Sampling Facilities

WENTZVILLE PWS Surface Water (SW)

WENTZVILLE PWS Ground Water (GW)

WENTZVILLE PWS Ground Water (GW)

Connection from St. Charles Surface Water (SW)

Distribution System Surface Water (SW)

Distribution System Surface Water (SW)

WELL #5 Ground Water (GW)

FAQ

Is Wentzville tap water safe to drink?

When was Wentzville last tested for water contamination?

WENTZVILLE PWS
Surface Water (SW)

WENTZVILLE PWS
Ground Water (GW)

WENTZVILLE PWS
Ground Water (GW)

Connection from St. Charles
Surface Water (SW)

Distribution System
Surface Water (SW)

Distribution System
Surface Water (SW)

WELL #5
Ground Water (GW)