Missouri American Water – St. Louis/St. Charles Counties System
St. Louis and St. Charles Counties
Population reference
1,111,000 people (EPA SDWIS PWS ID MO6010716; 2026 active CWS record; EPA name: MO AMERICAN ST LOUIS ST CHARLES COUNTIES).
Billing detail
Partial public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Generally monthly for residential accounts; exact read and bill dates vary by service route and are printed on the customer statement.
- Rate structure
- Commission-approved tariff rates vary by Missouri service district, meter size, customer class, and usage. The St. Louis/St. Charles system is not a single uniform household schedule; the applicable tariff and fixed service charge govern the account.
- Wastewater and sewer calculation
- Missouri American Water may provide water service while sewer billing is handled by a city, county, or separate sewer district. A household's sewer amount, winter average, or flat tie-in therefore cannot be inferred from the water PWS and must be confirmed with the sewer bill issuer.
- Meter reading
- Missouri American Water has deployed advanced metering infrastructure in Missouri service areas, and the company advertises usage tracking in MyWater. The reviewed customer page does not publish a route-specific read date or confirm that every account in this EPA system transmits hourly data.
- New-account deposit
- The Missouri tariff permits a security deposit or guarantee when the applicant has an unpaid account, unauthorized interference, or cannot meet credit standards. A deposit cannot exceed twice the highest recent or estimated bill, or one-sixth of the estimated annual water bill for a new monthly-billed customer. Deposits over $100 may be paid in installments over at least four weeks; satisfactory payment for no more than 12 consecutive months can establish credit and trigger prompt refund with accrued interest, subject to tariff exceptions.
Context, not a score
How documentation coverage compares
This profile
71%
overview fields with research notes
Missouri
40%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Partial public detail found
5 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
71%
Details not confirmed in the reviewed public material
- Residential cost reference
- Activation or transfer fee
“Not confirmed” means the directory did not identify a dependable public statement. It does not mean the provider has no policy or option.
Primary verification routes
- Missouri American Water – St. Louis/St. Charles Counties System public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA SDWIS / ECHO lookup (MO6010716) ↗
Search the federal drinking-water database using public water system ID MO6010716.