TERRE DU LAC
PWSID: MO4036059 · Des Peres, MO · Serves 3,200 people
According to EPA Safe Drinking Water Information System (SDWIS), TERRE DU LAC (PWSID MO4036059) in Des Peres, MO is listed as a CWS water system covering about 3,200 people. The same extract lists 162 health-based violation records spanning 1980-2016. Those 162 health-based rows for TERRE DU LAC cover contaminants such as Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U; they remain historical EPA registry entries, not a current compliance or drinkability score.
TERRE DU LAC has 162 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. 2 distinct EPA contaminant codes appear in this system's record, including Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U. Recorded violations span 1980–2016. 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)
- MO4036059
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Des Peres, MO
- Population Served
- 3,200
- Health Violations
- Yes (162)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Combined Radium (-226 and -228) | 92 | 92 |
| Gross Alpha, Excl. Radon and U | 70 | 70 |
Violation History (162)
Frequently Asked Questions
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Compare beyond Missouri
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest TERRE DU LAC on cumulative violation count (162) and EPA-reported population served (3,200). Violation-count peers include TOWN OF PLAIN DEALING WATER SYSTEM, ALBERTA WATER SYSTEM, WARDS CHAPEL WATER SYSTEM. Population peers include Jemez Pueblo, NISQUALLY-LESCHI & WEST NISQUALLY, FREEPORT MCMORAN BAGDAD TOWN.
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
TERRE DU LAC (MO4036059) 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 (162 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.