Tapcensus

Water quality for ZIP code 63380

ZIP 63380 covers Truesdale and Warrenton in Warren County, Missouri, one of 6 ZIP codes in the county. 31 active public water systems serve the county; 17 had an EPA violation in the past three years.

Most likely your provider

Warrenton PWS MO6010834 · Community water system · Ground water · Warrenton
Serves 8,208 people Rules violated, past 3 years 0 Last sanitary survey Oct 23, 2025

Other community water systems in Warren County

17 systems, largest first
SystemServesStatusRules violated, 3 yr
Montgomery CO Pwsd 1
3,850 4
ST Charles CO Pwsd #2 Wright City
Wright City
3,550 1
Marthasville PWS
Marthasville
1,200 2
MO American Warren County Water & Sewer
1,200 0
ST Charles County Pwsd 2 Warren
1,192 0
Lake Sherwood Subd
1,100 4
Truesdale PWS
Truesdale
853 0
Innsbrook
810 2
ST Charles County Pwsd 2 North Oak DR
660 1
ST Charles County Pwsd 2 Dutzow
400 0
Pleasant Oak MHP
150 3
Maple Ridge MHP
140 1
Glenbrook Estates
100 2
Cedar Grove Village Subd
60 4
Country Cove
52 2
Valley Lake Estates
40 3
Great Oak Subdivision
Wright City
30 1
Non-community systems in Warren County (13: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
American Foods Group
1,100 1 1
Big Joels Safari
500 0 0
Dogwood Lake Campground
200 0 0
Treloar Bar and Grill
Marthasville
75 0 0
ST Ignatius Loyola School
60 1 0
Cedar Lake Cellars
50 3 2
Temco
50 1 0
Warco Mfg CO
32 0 0
Blumenhof Winery
30 0 0
Dollar General #24942 Innsbrook
25 0 0
Garage Bar
Marthasville
25 0 0
Lake Creek Farm Winery
Marthasville
25 0 0
Washington Airport
25 0 0
About this data

Water systems are matched to Warren County, the county this ZIP code lies in, largest first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Missouri records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.