CASTALIA WATER WORKS
Iowa — Community Water System — PWSID: IA9620082
System Information
| PWSID | IA9620082 |
| System Name | CASTALIA WATER WORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 27, 1979 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | OSSIAN |
| ZIP Code | 52161 |
| Address | ATTN DONNIE DILAURA |
| Organization | CASTALIA WATER WORKS |
| Phone | 563-419-4631 |
Population & Service
| Population Served | 145 |
| Service Connections | 86 |
Drinking Water Violations (56)
This water system has 56 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 12, 1994 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1992 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1992 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 1992 | — | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | — | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | — | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | — | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
| Jul 1, 1987 | Jun 30, 1991 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 1991 | — | |
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About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.