WH

Public water system

St Charles Pws

PWSID MO6010707 - St. Charles County, Missouri

120 PPM
7 GPG
Moderately Hard
0Soft60120180300+
Moderately Hard (120 PPM)Verified - Annual Water Quality Report

System Details

Water source
surface water
Population served
73,040
Service connections
27,404
Status
Active

Hardness Evidence

Reported hardness
120 PPM
Grains per gallon
7 GPG
Data source
Annual Water Quality Report
Source year
N/A
Raw/source estimate
273 PPM

Linked City Reports

Saint Charles, MOAugusta, MODefiance, MOForistell, MOO Fallon, MOLake Saint Louis, MOPortage Des Siou, MOSaint Peters, MOWentzville, MOWest Alton, MO

Served ZIP Codes

ZIPLocationZIP average
63301Saint Charles, MOModerately Hard (120 PPM)
63303Saint Charles, MOModerately Hard (120 PPM)
63304Saint Charles, MOModerately Hard (120 PPM)
63332Augusta, MOModerately Hard (120 PPM)
63341Defiance, MOModerately Hard (120 PPM)
63348Foristell, MOModerately Hard (120 PPM)
63366O Fallon, MOModerately Hard (120 PPM)
63367Lake Saint Louis, MOModerately Hard (120 PPM)
63373Portage Des Siou, MOModerately Hard (120 PPM)
63376Saint Peters, MOModerately Hard (120 PPM)
63385Wentzville, MOModerately Hard (120 PPM)
63386West Alton, MOModerately Hard (120 PPM)

How to Use This System Page

A public water system can serve multiple ZIP codes and cities. Use this page to inspect the source behind the hardness reading, then open the linked ZIP or city page for the local rollup.

If you are sizing treatment equipment, confirm your actual tap hardness with a home test or lab test before buying.

MethodologySourcesSearch by ZIP