THUNDERBIRD CWD
PWSID: CA3600306 · Apple Valley, CA · Serves 2,098 people
According to EPA Safe Drinking Water Information System (SDWIS), THUNDERBIRD CWD (PWSID CA3600306) in Apple Valley, CA is listed as a CWS water system covering about 2,098 people. The same extract lists 13 health-based violation records spanning 1996-2025. Those 13 health-based rows for THUNDERBIRD CWD cover contaminants such as Coliform (TCR), Nitrate; they remain historical EPA registry entries, not a current compliance or drinkability score.
THUNDERBIRD CWD has 13 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 Coliform (TCR), Nitrate. Recorded violations span 1996–2025. Day-to-day primacy enforcement for this system runs through the California 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 California state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- CA3600306
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Apple Valley, CA
- Population Served
- 2,098
- Health Violations
- Yes (13)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (TCR) | 12 | 12 |
| Nitrate | 1 | 1 |
Violation History (13)
| Contaminant | Health | Date |
|---|---|---|
| Nitrate | Yes | Jan 1, 2025 |
| Coliform (TCR) | Yes | Jun 1, 2009 |
| Coliform (TCR) | Yes | Jun 1, 2009 |
| Coliform (TCR) | Yes | Jun 1, 2009 |
| Coliform (TCR) | Yes | Jun 1, 2004 |
| Coliform (TCR) | Yes | Jun 1, 2004 |
| Coliform (TCR) | Yes | Jun 1, 2004 |
| Coliform (TCR) | Yes | Apr 1, 2002 |
| Coliform (TCR) | Yes | Apr 1, 2002 |
| Coliform (TCR) | Yes | Apr 1, 2002 |
| Coliform (TCR) | Yes | Oct 1, 1996 |
| Coliform (TCR) | Yes | Oct 1, 1996 |
| Coliform (TCR) | Yes | Oct 1, 1996 |
Frequently Asked Questions
What does EPA SDWIS list for THUNDERBIRD CWD?
How many people does THUNDERBIRD CWD serve?
What violations does THUNDERBIRD CWD have?
What contaminants have been found in THUNDERBIRD CWD water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest THUNDERBIRD CWD on cumulative violation count (13) and EPA-reported population served (2,098). Violation-count peers include SCUA Lower Peridot, Cocopah Bend RV & Golf Resort, BETHEL HEIGHTS WATER SYSTEM. Population peers include CHAPEL RIDGE S/D, SANDY POINT IMPROVEMENT CO, REDBY/RED LAKE.
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
THUNDERBIRD CWD (CA3600306) is drawn from EPA SDWIS. Nearby county systems in this extract include CUCAMONGA VALLEY WATER DISTRICT; ONTARIO MUNICIPAL UTILITIES COMPANY; SAN BERNARDINO VALLEY WD; EAST VALLEY WATER DISTRICT. Health-based rows (13 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.