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Home/Utilities/Missouri/JEFFERSON COUNTY PWSD 3

JEFFERSON COUNTY PWSD 3

Serving 2 cities in MO

Monitor
2 above health guidelines
17K
People Served
2
Cities
1
Water Sources
0
MCL Violations

Official JEFFERSON COUNTY PWSD 3 Resources

JEFFERSON COUNTY PWSD 3 Service Area

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Service Area

This map shows the approximate service area for JEFFERSON COUNTY PWSD 3. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

JEFFERSON COUNTY PWSD 3 Water Quality Grade

B
Good

Water quality is good with minor concerns.

Quality Score80/100
2
Above Health Guidelines
0
EPA Violations

Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).

Is JEFFERSON COUNTY PWSD 3 Water Safe to Drink?

JEFFERSON COUNTY PWSD 3 has reported 2 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.

This utility serves 17,000 people across 2 cities in MO. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

Get your water independently tested in Missouri β†’

JEFFERSON COUNTY PWSD 3 Service Area

JEFFERSON COUNTY PWSD 3 Contact & Information

Mailing Address

PO BOX 920 Arnold, MO 63010

B2B Contact Data

B2B Contact Data Available

Contacts for JEFFERSON COUNTY PWSD 3

Updated Jan 2026
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NameTitlePhoneEmail
Jβ–ˆβ–ˆβ–ˆβ–ˆ Sβ–ˆβ–ˆβ–ˆβ–ˆWater Treatment Supervisor(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆjβ–ˆβ–ˆβ–ˆβ–ˆ@cityβ–ˆβ–ˆβ–ˆβ–ˆ.gov
Mβ–ˆβ–ˆβ–ˆβ–ˆ Jβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆUtility Director(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆmβ–ˆβ–ˆβ–ˆβ–ˆ@waterβ–ˆβ–ˆβ–ˆβ–ˆ.org
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Water Sources & Treatment

Water Sources

Surface water purchased

Treatment Methods

filtrationsoftening

Disinfectant Used

hypochlorite

Recommended Water Filters for JEFFERSON COUNTY PWSD 3

Based on water quality data from cities served by JEFFERSON COUNTY PWSD 3, we recommend NSF-certified filters that can remove contaminants above health guidelines.

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