N.S. MAYPORT
Florida — Community Water System — PWSID: FL2160734
System Information
| PWSID | FL2160734 |
| System Name | N.S. MAYPORT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 04 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 10, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Florida |
| City | JACKSONVILLE |
| ZIP Code | 32228 |
| Address | BLDG 1966 |
| Organization | LCDR NATHAN CHENARAK |
| Phone | 904-270-3162 |
Population & Service
| Population Served | 20,500 |
| Service Connections | 901 |
Drinking Water Violations (22)
This water system has 22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | — | E. COLI | MR | No | Yes | — | — | — | Unaddressed | — | Ground Water Rule |
| Nov 1, 2021 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Feb 9, 2022 | Revised Total Coliform Rule |
| Dec 1, 2017 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 7, 2018 | Ground Water Rule |
| Dec 1, 2017 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 7, 2018 | Ground Water Rule |
| Dec 1, 2017 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 7, 2018 | Ground Water Rule |
| Oct 1, 2015 | Oct 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2015 | Total Coliform Rule |
| Oct 1, 2015 | Oct 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2015 | Total Coliform Rule |
| Oct 1, 2015 | Oct 31, 2015 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2015 | Total Coliform Rule |
| Jul 1, 2013 | Sep 30, 2013 | TTHM | MCL | Yes | No | 82.03 UG/L | 0.080 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | TTHM | MCL | Yes | No | 82.03 UG/L | 0.080 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | TTHM | MCL | Yes | No | 82.03 UG/L | 0.080 mg/L | — | Resolved | Sep 30, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2008 | Jul 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Jul 31, 2008 | Total Coliform Rule |
| Apr 1, 2008 | Apr 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Apr 30, 2008 | Total Coliform Rule |
| Apr 1, 2008 | Apr 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Apr 30, 2008 | Total Coliform Rule |
| Apr 1, 1992 | Mar 31, 1996 | Gross Alpha, Excl. Radon and U | MCL | Yes | No | 10.4 | 15 pCi/L | 5 | Archived | Mar 31, 1996 | Radionuclides and Revised Rad Rule |
| Apr 1, 1992 | Mar 31, 1996 | Gross Alpha, Excl. Radon and U | MCL | Yes | No | 10.4 | 15 pCi/L | 5 | Archived | Mar 31, 1996 | Radionuclides and Revised Rad Rule |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | 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.