KEYSTONE POSTMASTER GRID
Florida — Community Water System — PWSID: FL2100610
System Information
| PWSID | FL2100610 |
| System Name | KEYSTONE POSTMASTER GRID |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 04 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 10, 1979 |
| Last Reported | Feb 24, 2026 |
Location & Contact
| State | Florida |
| City | MIDDLEBURG |
| ZIP Code | 32068-3907 |
| Address | 3176 OLD JENNINGS ROAD |
| Organization | JEREMY JOHNSTON |
| Phone | 904-213-2477 |
Population & Service
| Population Served | 5,092 |
| Service Connections | 1,845 |
Drinking Water Violations (20)
This water system has 20 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2001 | Jan 31, 2001 | MR | No | No | — | 5% of samples | — | Archived | Jan 31, 2001 | — | |
| Oct 1, 1984 | Sep 30, 1987 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Sep 30, 1987 | — | |
| Oct 1, 1984 | Sep 30, 1987 | MR | No | Yes | — | 0.0002 mg/L | — | Archived | Sep 30, 1987 | — | |
| Oct 1, 1984 | Sep 30, 1987 | MR | No | Yes | — | 0.003 mg/L | — | Archived | Sep 30, 1987 | — | |
| Oct 1, 1984 | Sep 30, 1987 | MR | No | Yes | — | 0.04 mg/L | — | Archived | Sep 30, 1987 | — | |
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| — | — | — | No | No | — | — | — | — | — | — |
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.