Public water system record
Davidson
Serves an area of Tillman County, OK that includes Davidson · 375 people served
Federal records show 13 health-based violations and 39 monitoring/reporting issues for Davidson in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
Source water
Purchased surface water
ZIP
73530
EPA system ID
OK2007104
- Health-based violations, last 10 years
- 13
- Resolved
- 13
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 39
Key facts
- Davidson draws water from 2 wells.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.131 mg/L, federal limit 0.08 mg/L (1.6 times the limit), 2023.
- Most recent formal enforcement: compliance order (no penalty) by Oklahoma, July 2023.
- Record on file since 1979, with 43 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 109 unknown out of 218 service lines.
Check whether Davidson serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.131 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
|
220 | Apr 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Oct 1, 2022 | Resolved | No |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jul 1, 2022 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2022 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jul 1, 2021 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2020 | Resolved | Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jul 1, 2019 | Resolved | Yes |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jan 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Chlorine
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Picloram
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Jun 4, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 6, 2020 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 15, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Gross Beta Particle Activity
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2017 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Arsenic
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 29, 2015 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2015 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 20, 2014 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2014 | Resolved |
|
Nitrite
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2013 | Resolved |
Full record since 1979
EPA's records for Davidson go back to 1979. Before October 19, 2016 they list 43 health-based violations (42 resolved, 1 archived by EPA without a recorded fix) and 39 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 2 | 0 |
| 1980s | 1 | 0 |
| 1990s | 1 | 3 |
| 2000s | 20 | 20 |
| 2010 to October 18, 2016 | 19 | 16 |
| October 19, 2016 to 2019 | 6 | 20 |
| 2020s | 7 | 12 |
Most recent health-based violation before October 19, 2016: Nitrate-Nitrite (acute), began January 2016, Resolved.
Show all 43 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jan 1, 2016 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Apr 1, 2014 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Oct 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.119 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Apr 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.115 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Jan 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.111 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Oct 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.122 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Jul 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.133 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Apr 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.136 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Jan 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Oct 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Jul 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Apr 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jan 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Oct 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Jul 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.122 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Apr 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jan 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Jul 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.122 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Apr 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.156 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
Jan 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.153 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Oct 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.147 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Jul 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.151 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Apr 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.152 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Jan 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.149 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.159 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
Jul 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.172 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
Apr 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.14 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Jan 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.145 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Oct 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.148 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Jul 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.125 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
|
Apr 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Jan 1, 2006 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jun 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1991 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Feb 4, 1982 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 23, 1979 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 23, 1979 | Resolved |
Enforcement actions
Oklahoma regulators took 34 formal enforcement actions against Davidson and issued 1 boil water order between 1995 and 2023, filed as 36 records in EPA's data. The most recent was a compliance order (no penalty) in July 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 12, 2023 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Mar 16, 2023 | Oklahoma | Compliance order with a penalty | 3 violations (3 health-based): Nitrate-Nitrite |
| Feb 9, 2023 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Aug 4, 2022 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| May 12, 2022 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Aug 3, 2021 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Feb 4, 2020 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Aug 19, 2019 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Feb 5, 2019 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Nov 8, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Aug 3, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| May 3, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Jan 29, 2018 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Jan 15, 2016 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Nitrate-Nitrite |
| May 15, 2014 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Nitrate-Nitrite |
| Jul 31, 2008 | Oklahoma | Compliance order with a penalty | 37 violations (31 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Jun 9, 2008 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Mar 25, 2008 | Oklahoma | Compliance order with a penalty | 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Mar 11, 2008 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Jan 4, 2008 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Sep 14, 2007 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| May 8, 2007 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Apr 23, 2007 | Oklahoma | Compliance order with a penalty | 2 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Feb 20, 2007 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Dec 8, 2006 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Oct 11, 2006 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Oct 3, 2006 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Aug 10, 2006 | Oklahoma | Compliance order with a penalty | 1 violation: Haloacetic Acids (HAA5) |
| Jan 26, 2006 | Oklahoma | Compliance order with a penalty | 1 violation: Total Trihalomethanes (TTHMs) |
| Jun 7, 2005 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Coliform |
| Jun 7, 2005 | Oklahoma | Boil water order | 1 violation (1 health-based): Total Coliform |
| Nov 19, 2002 | Oklahoma | Compliance order with a penalty | 3 violations: Gross Alpha, Excl. Radon and U, Gross Beta Particle Activity, Combined Radium (-226 and -228) |
| Feb 8, 2002 | Oklahoma | Compliance order with a penalty | 2 violations: Nitrite, Nitrate |
| Jul 30, 2001 | Oklahoma | Compliance order with a penalty | 2 violations: Lead and Copper Rule |
| Sep 20, 1995 | Oklahoma | Compliance order (no penalty) | 1 violation: Total Coliform |
What the violations mean
Total Trihalomethanes (TTHMs)
7 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Nitrate-Nitrite
5 incidentsTest results for Nitrate-Nitrite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Davidson draws water from 2 wells. It also buys water from Frederick.
Buys water from
- Frederick Frederick, OK
Annual water quality report
Davidson must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Davidson for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Oklahoma.
Certified drinking water labs by state EPA guidance for private wells