CS TIERRA MESA ESTATES WATER COMPANY
PWSID: AZ0414080 · Des Peres, MO · Serves 632 people
According to EPA Safe Drinking Water Information System (SDWIS), CS TIERRA MESA ESTATES WATER COMPANY (PWSID AZ0414080) in Des Peres, MO is listed as a CWS water system covering about 632 people. The same extract lists 47 health-based violation records spanning 2020-2025. Those 47 health-based rows for CS TIERRA MESA ESTATES WATER COMPANY cover contaminants such as Combined Uranium; they remain historical EPA registry entries, not a current compliance or drinkability score.
CS TIERRA MESA ESTATES WATER COMPANY has 47 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including Combined Uranium. Recorded violations span 2020–2025. Day-to-day primacy enforcement for this system runs through the Missouri drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Missouri state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- AZ0414080
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Des Peres, MO
- Population Served
- 632
- Health Violations
- Yes (47)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Combined Uranium | 47 | 47 |
Violation History (47)
| Contaminant | Health | Date |
|---|---|---|
| Combined Uranium | Yes | Jul 1, 2025 |
| Combined Uranium | Yes | Apr 1, 2025 |
| Combined Uranium | Yes | Apr 1, 2025 |
| Combined Uranium | Yes | Jan 1, 2025 |
| Combined Uranium | Yes | Jan 1, 2025 |
| Combined Uranium | Yes | Jul 1, 2024 |
| Combined Uranium | Yes | Jul 1, 2024 |
| Combined Uranium | Yes | Jul 1, 2024 |
| Combined Uranium | Yes | Apr 1, 2024 |
| Combined Uranium | Yes | Apr 1, 2024 |
| Combined Uranium | Yes | Apr 1, 2024 |
| Combined Uranium | Yes | Jan 1, 2024 |
| Combined Uranium | Yes | Jan 1, 2024 |
| Combined Uranium | Yes | Jan 1, 2024 |
| Combined Uranium | Yes | Oct 1, 2023 |
| Combined Uranium | Yes | Oct 1, 2023 |
| Combined Uranium | Yes | Oct 1, 2023 |
| Combined Uranium | Yes | Jul 1, 2023 |
| Combined Uranium | Yes | Jul 1, 2023 |
| Combined Uranium | Yes | Jul 1, 2023 |
| Combined Uranium | Yes | Apr 1, 2023 |
| Combined Uranium | Yes | Apr 1, 2023 |
| Combined Uranium | Yes | Jan 1, 2023 |
| Combined Uranium | Yes | Jan 1, 2023 |
| Combined Uranium | Yes | Jan 1, 2023 |
| Combined Uranium | Yes | Jan 1, 2023 |
| Combined Uranium | Yes | Oct 1, 2022 |
| Combined Uranium | Yes | Oct 1, 2022 |
| Combined Uranium | Yes | Oct 1, 2022 |
| Combined Uranium | Yes | Jul 1, 2022 |
| Combined Uranium | Yes | Jul 1, 2022 |
| Combined Uranium | Yes | Jul 1, 2022 |
| Combined Uranium | Yes | Apr 1, 2022 |
| Combined Uranium | Yes | Apr 1, 2022 |
| Combined Uranium | Yes | Apr 1, 2022 |
| Combined Uranium | Yes | Jan 1, 2022 |
| Combined Uranium | Yes | Jan 1, 2022 |
| Combined Uranium | Yes | Oct 1, 2021 |
| Combined Uranium | Yes | Oct 1, 2021 |
| Combined Uranium | Yes | Jul 1, 2021 |
| Combined Uranium | Yes | Jul 1, 2021 |
| Combined Uranium | Yes | Apr 1, 2021 |
| Combined Uranium | Yes | Apr 1, 2021 |
| Combined Uranium | Yes | Jan 1, 2021 |
| Combined Uranium | Yes | Jan 1, 2021 |
| Combined Uranium | Yes | Jul 1, 2020 |
| Combined Uranium | Yes | Jul 1, 2020 |
Frequently Asked Questions
What does EPA SDWIS list for CS TIERRA MESA ESTATES WATER COMPANY?
How many people does CS TIERRA MESA ESTATES WATER COMPANY serve?
What violations does CS TIERRA MESA ESTATES WATER COMPANY have?
What contaminants have been found in CS TIERRA MESA ESTATES WATER COMPANY water?
Compare beyond Missouri
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CS TIERRA MESA ESTATES WATER COMPANY on cumulative violation count (47) and EPA-reported population served (632). Violation-count peers include CITY OF PERRY, THOMSON-MCDUFFIE CO W&S COMM, POINT WILHITE WS. Population peers include TRADEWIND WATER ASSOC., LEISURE LAKES (COVERED BRIDGE), SAVANNAH PINES MOBILE HOME PARK.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
CS TIERRA MESA ESTATES WATER COMPANY (AZ0414080) is drawn from EPA SDWIS. Nearby county systems in this extract include MO AMERICAN ST LOUIS ST CHARLES COUNTIES; KIRKWOOD PWS; JEFFERSON COUNTY PWSD 2; MO AMERICAN MEXICO. Health-based rows (47 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.