LONE ROCK WATER SUPPLY
Iowa - Community Water System - PWSID: IA5547094
System Information
| PWSID | IA5547094 |
| System Name | LONE ROCK WATER SUPPLY |
| 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 | Jun 17, 2026 |
Location & Contact
| State | Iowa |
| City | WHITTEMORE |
| ZIP Code | 50598 |
| Address | ATTN BRIAN KLEIN |
| Organization | LONE ROCK WATER SUPPLY |
| Phone | 515-320-1122 |
Population & Service
| Population Served | 146 |
| Service Connections | 94 |
Drinking Water Violations (120)
This water system has 120 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2024 | Mar 31, 2024 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2024 | - | |
| Mar 1, 2024 | Mar 31, 2024 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2024 | - | |
| Mar 1, 2024 | Mar 31, 2024 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2024 | - | |
| Mar 1, 2024 | Mar 31, 2024 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2024 | - | |
| Mar 1, 2024 | Mar 31, 2024 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2024 | - | |
| Jun 1, 2019 | Jun 30, 2019 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2019 | - | |
| Jun 1, 2019 | Jun 30, 2019 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2019 | - | |
| Jun 1, 2019 | Jun 30, 2019 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2019 | - | |
| Jun 1, 2019 | Jun 30, 2019 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2019 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2005 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2005 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2005 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2005 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2005 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 10 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 10 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 10 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Feb 15, 2000 | - | |
| Apr 1, 1995 | Mar 31, 2000 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Feb 15, 2000 | - |
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.