Tapcensus

Water quality for ZIP code 63385

ZIP 63385 covers Wentzville, Flint Hill, Josephville, New Melle, O'Fallon, and Foristell in St. Charles County, Missouri, one of 14 ZIP codes in the county. 55 active public water systems serve the county; 34 had an EPA violation in the past three years.

Most likely your provider

Wentzville PWS MO6010849 · Community water system · Ground water · Wentzville
Serves 41,784 people Rules violated, past 3 years 1 Unresolved 1 Last sanitary survey Jul 11, 2024 Distance 2.5 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in St. Charles County

18 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Prairie View Acres Subd
135 2 2.6 mi
Ecm Water & Sewer Authority Flint Hill
Flint Hill
469 0 4.6 mi
ST Charles County Pwsd 2
100,587 1 6.0 mi
ST Charles Pwsd 2 Foristell
Foristell
550 1 6.1 mi
Country Estates
50 2 6.4 mi
Big Country Acres Subdivision
90 3 6.6 mi
MO American Jaxson
Foristell
535 0 6.7 mi
ST Paul PWS
1,700 1 7.2 mi
Ofallon PWS
O Fallon
32,515 1 8.3 mi
Weldon Spring Heights Village PWS
Weldon Spr Hght
100 0 13.4 mi
ST Peters PWS
St. Peters
52,575 0 13.4 mi
ST Charles CO Pwsd 2 Augusta
881 0 14.5 mi
ST Charles PWS
St. Charles
78,961 1 18.4 mi
MO American ST Louis ST Charles Counties
1,111,000 0 24.8 mi
Portage Des Sioux PWS
Portagedessioux
345 1 29.1 mi
ST Charles CO Pwsd 2 Sumac Ridge
103 1 —
Tara Oaks Manor Assn
100 1 —
Confluence Rivers Stone Ridge Meadows
60 1 —
Non-community systems in St. Charles County (36: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
ST Charles Community College Rwic
300 0 0
ST Joseph Parish
165 1 0
Oglesby Park
25 0 0
Towne Park
Foristell
100 1 0
William K Busch Brewing CO
25 0 0
ST Paul Knights of Columbus Hall
30 1 0
Indian Camp Creek Park
300 1 1
Cherokee Lakes Camp
50 1 0
Wildschuetz Brothers Farm
100 2 0
Daniel Boone Home
162 0 0
Memc LLC
350 1 0
ST Charles CO Police Training Facility
35 2 1
Chandler Hill Vineyard
75 2 1
Boone Valley Golf Club
50 0 0
Missouri Bluffs Park
25 0 0
Matson Hill Park Barn
25 0 0
Two Branch Marina
25 0 0
Johns Boat Harbor
25 0 0
Sunflower Hill Farm
35 0 0
Montelle Winery
100 3 0
Noboleis Vineyards
25 2 1
Balducci Vineyards
25 0 0
Thies Farm
St. Charles
25 1 0
National Cart Company
150 3 1
Lake Center Marina
250 1 1
North Shore Marina
40 4 0
Polestar Marina
70 2 0
Port Charles Harbor
75 0 0
Orchard Farm Schools
1,600 1 0
ST Charles County Airport
25 0 0
Gasmart Hyway 67 Mobil
300 0 0
River Edge Gasmart
400 1 1
Rivers Project Office
30 2 1
ST Pauls Elementary School
200 1 0
Broemmelsiek Park
50 1 1
Dog Prairie Tavern LLC
30 0 0
About this data

Water systems are matched to St. Charles County, the county this ZIP code lies in, nearest to the ZIP code's centre 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. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

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.