FREDERICK
PWSID: OK1011401 · Frederick, OK · Serves 3,940 people
According to EPA Safe Drinking Water Information System (SDWIS), FREDERICK (PWSID OK1011401) in Frederick, OK is listed as a CWS water system covering about 3,940 people. The same extract lists 109 health-based violation records spanning 1998-2025. Those 109 health-based rows for FREDERICK cover contaminants such as TTHM, CARBON, TOTAL, Asbestos; they remain historical EPA registry entries, not a current compliance or drinkability score.
FREDERICK has 109 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. 6 distinct EPA contaminant codes appear in this system's record, including TTHM, CARBON, TOTAL, Asbestos. Recorded violations span 1998–2025. Day-to-day primacy enforcement for this system runs through the Oklahoma 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 Oklahoma state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OK1011401
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Frederick, OK
- Population Served
- 3,940
- Health Violations
- Yes (109)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 59 | 59 |
| CARBON, TOTAL | 44 | 44 |
| Asbestos | 2 | 2 |
| Chlorite | 2 | 2 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
| Coliform (TCR) | 1 | 1 |
Violation History (109)
| Contaminant | Health | Date |
|---|---|---|
| Asbestos | Yes | Oct 1, 2025 |
| Asbestos | Yes | Jul 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| CARBON, TOTAL | Yes | Jul 1, 2023 |
| CARBON, TOTAL | Yes | Jul 1, 2023 |
| CARBON, TOTAL | Yes | Jul 1, 2023 |
| CARBON, TOTAL | Yes | Apr 1, 2023 |
| CARBON, TOTAL | Yes | Apr 1, 2023 |
| CARBON, TOTAL | Yes | Apr 1, 2023 |
| CARBON, TOTAL | Yes | Jan 1, 2023 |
| CARBON, TOTAL | Yes | Jan 1, 2023 |
| CARBON, TOTAL | Yes | Jan 1, 2023 |
| TTHM | Yes | Apr 1, 2018 |
| Chlorite | Yes | Jan 1, 2018 |
| TTHM | Yes | Jan 1, 2018 |
| TTHM | Yes | Oct 1, 2017 |
| TTHM | Yes | Jul 1, 2017 |
| Chlorite | Yes | Feb 1, 2016 |
| TTHM | Yes | Oct 1, 2015 |
| TTHM | Yes | Jul 1, 2015 |
| TTHM | Yes | Apr 1, 2015 |
| CARBON, TOTAL | Yes | Apr 1, 2015 |
| TTHM | Yes | Jan 1, 2015 |
| CARBON, TOTAL | Yes | Jan 1, 2015 |
| TTHM | Yes | Oct 1, 2014 |
| CARBON, TOTAL | Yes | Oct 1, 2014 |
| CARBON, TOTAL | Yes | Jul 1, 2014 |
| TTHM | Yes | Jul 1, 2014 |
| CARBON, TOTAL | Yes | Apr 1, 2014 |
| CARBON, TOTAL | Yes | Jan 1, 2014 |
| CARBON, TOTAL | Yes | Oct 1, 2013 |
| TTHM | Yes | Jul 1, 2013 |
| TTHM | Yes | Apr 1, 2013 |
| TTHM | Yes | Jan 1, 2013 |
| CARBON, TOTAL | Yes | Jan 1, 2013 |
| TTHM | Yes | Oct 1, 2012 |
| CARBON, TOTAL | Yes | Oct 1, 2012 |
| TTHM | Yes | Jul 1, 2012 |
| CARBON, TOTAL | Yes | Jul 1, 2012 |
| TTHM | Yes | Apr 1, 2012 |
| CARBON, TOTAL | Yes | Apr 1, 2012 |
| TTHM | Yes | Jan 1, 2012 |
| CARBON, TOTAL | Yes | Jan 1, 2012 |
| TTHM | Yes | Oct 1, 2011 |
| CARBON, TOTAL | Yes | Oct 1, 2011 |
| TTHM | Yes | Jul 1, 2011 |
| TTHM | Yes | Apr 1, 2011 |
| TTHM | Yes | Jan 1, 2011 |
| TTHM | Yes | Oct 1, 2010 |
| CARBON, TOTAL | Yes | Oct 1, 2010 |
| TTHM | Yes | Jul 1, 2010 |
| CARBON, TOTAL | Yes | Jul 1, 2010 |
| TTHM | Yes | Apr 1, 2010 |
| CARBON, TOTAL | Yes | Apr 1, 2010 |
| TTHM | Yes | Jan 1, 2010 |
| CARBON, TOTAL | Yes | Jan 1, 2010 |
| TTHM | Yes | Oct 1, 2009 |
| CARBON, TOTAL | Yes | Oct 1, 2009 |
| TTHM | Yes | Jul 1, 2009 |
| CARBON, TOTAL | Yes | Jul 1, 2009 |
| TTHM | Yes | Apr 1, 2009 |
| CARBON, TOTAL | Yes | Apr 1, 2009 |
| TTHM | Yes | Jan 1, 2009 |
| CARBON, TOTAL | Yes | Jan 1, 2009 |
| TTHM | Yes | Oct 1, 2008 |
| CARBON, TOTAL | Yes | Oct 1, 2008 |
| TTHM | Yes | Jul 1, 2008 |
| CARBON, TOTAL | Yes | Jul 1, 2008 |
| TTHM | Yes | Apr 1, 2008 |
| CARBON, TOTAL | Yes | Apr 1, 2008 |
| TTHM | Yes | Jan 1, 2008 |
| CARBON, TOTAL | Yes | Jan 1, 2008 |
| TTHM | Yes | Oct 1, 2007 |
| CARBON, TOTAL | Yes | Oct 1, 2007 |
| TTHM | Yes | Jul 1, 2007 |
| CARBON, TOTAL | Yes | Jul 1, 2007 |
| CARBON, TOTAL | Yes | Jul 1, 2007 |
| TTHM | Yes | Apr 1, 2007 |
| CARBON, TOTAL | Yes | Apr 1, 2007 |
| TTHM | Yes | Jan 1, 2007 |
| CARBON, TOTAL | Yes | Jan 1, 2007 |
| TTHM | Yes | Oct 1, 2006 |
| TTHM | Yes | Jul 1, 2006 |
| TTHM | Yes | Apr 1, 2006 |
| TTHM | Yes | Jan 1, 2006 |
| TTHM | Yes | Oct 1, 2005 |
| CARBON, TOTAL | Yes | Oct 1, 2005 |
| CARBON, TOTAL | Yes | Jul 1, 2005 |
| TTHM | Yes | Jul 1, 2005 |
Frequently Asked Questions
What does EPA SDWIS list for FREDERICK?
How many people does FREDERICK serve?
What violations does FREDERICK have?
What contaminants have been found in FREDERICK water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest FREDERICK on cumulative violation count (109) and EPA-reported population served (3,940). Violation-count peers include SPILLWAY ESTATES WATER SYSTEM, KEYES COMMUNITY SERVICES DIST., VILLAGE OF MARION WATER SYSTEM. Population peers include MADRAS, CITY OF, CROSS COUNTRY WSC, EAST MONTGOMERY COUNTY MUD 6.
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
Explore More
About This Data
FREDERICK (OK1011401) is drawn from EPA SDWIS. Nearby county systems in this extract include GRANDFIELD; TIPTON; DAVIDSON; MANITOU. Health-based rows (109 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.