Public water system record
McAlester PWA
Serves an area of Pittsburg County, OK that includes McAlester · 18,206 people served
Federal records show 44 health-based violations and 12 monitoring/reporting issues for McAlester PWA in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.
System profile
Source water
Surface water
ZIP
74501
EPA system ID
OK1020609
- Health-based violations, last 10 years
- 44
- Resolved
- 42
- Unresolved
- 0
- Archived by EPA
- 2
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 12
Key facts
- McAlester PWA draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.075 mg/L, federal limit 0.06 mg/L (1.3 times the limit), 2020.
- Most recent formal enforcement: compliance order (no penalty) by Oklahoma, November 2025.
- Record on file since 1991, with 135 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 8,174 unknown out of 9,585 service lines.
Check whether McAlester PWA 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 |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
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 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2024 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2024 | Resolved | Yes |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jul 1, 2023 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jun 1, 2023 | Resolved | Yes |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Apr 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2023 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jan 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jan 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Oct 1, 2022 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2022 | 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 | Jul 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jan 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Oct 1, 2020 | 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 | Jul 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Jul 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jul 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.075 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
220 | Jul 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Apr 1, 2020 | 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 | Apr 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Apr 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Apr 1, 2020 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Apr 1, 2020 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2020 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2020 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2020 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2020 | Resolved | Yes |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2019 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Apr 1, 2019 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2018 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2018 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Apr 1, 2018 | 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 | Jan 1, 2018 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2017 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2017 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2017 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2017 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Dec 30, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jun 30, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Dec 30, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Bromate
Monitoring and reporting
|
Oct 1, 2017 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Bromate
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
Full record since 1991
EPA's records for McAlester PWA go back to 1991. Before October 19, 2016 they list 135 health-based violations (132 resolved, 3 archived by EPA without a recorded fix) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 16 | 2 |
| 2000s | 63 | 4 |
| 2010 to October 18, 2016 | 56 | 2 |
| October 19, 2016 to 2019 | 11 | 5 |
| 2020s | 33 | 7 |
Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began March 2016, Resolved.
Show all 135 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jan 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Oct 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Oct 1, 2015 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Sep 1, 2015 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
Jul 1, 2015 | 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, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jan 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jan 1, 2015 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Apr 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jan 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Oct 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2012 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2012 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Jan 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Dec 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Dec 1, 2011 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2011 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
May 1, 2011 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Apr 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jan 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Jan 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Nov 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Nov 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
Oct 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jul 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2010 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Apr 1, 2010 | Resolved |
85 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Oklahoma regulators took 60 formal enforcement actions against McAlester PWA and issued 1 boil water order between 1991 and 2025, filed as 62 records in EPA's data. The most recent was a compliance order (no penalty) in November 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 12, 2025 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Sep 17, 2024 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule |
| Aug 2, 2023 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| Apr 20, 2021 | Oklahoma | Compliance order with a penalty | 26 violations (24 health-based): CARBON, TOTAL, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Mar 12, 2021 | Oklahoma | Compliance order (no penalty) | 4 violations (4 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Dec 8, 2020 | Oklahoma | Compliance order (no penalty) | 4 violations (4 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Sep 18, 2020 | Oklahoma | Compliance order (no penalty) | 5 violations (5 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Jun 12, 2020 | Oklahoma | Compliance order (no penalty) | 4 violations (4 health-based): Interim Enhanced Surface Water Treatment Rule |
| Dec 9, 2019 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Nov 19, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Sep 17, 2018 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Surface Water Treatment Rule |
| Sep 4, 2018 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Apr 23, 2018 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): CARBON, TOTAL, Total Trihalomethanes (TTHMs) |
| Sep 28, 2017 | Oklahoma | Compliance order (no penalty) | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| May 26, 2016 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| Mar 15, 2016 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| Mar 14, 2016 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Feb 11, 2016 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| Dec 8, 2015 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Jun 12, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Apr 14, 2015 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| Mar 16, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Nov 14, 2014 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Aug 28, 2014 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| May 7, 2014 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs) |
| Oct 26, 2012 | Oklahoma | Compliance order with a penalty | 69 violations (69 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL, Haloacetic Acids (HAA5) |
| Mar 13, 2012 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| Aug 30, 2011 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| Jun 30, 2011 | Oklahoma | Compliance order with a penalty | 5 violations (5 health-based): Interim Enhanced Surface Water Treatment Rule |
| Dec 22, 2010 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| Sep 9, 2010 | Oklahoma | Compliance order with a penalty | 9 violations (9 health-based): Interim Enhanced Surface Water Treatment Rule |
| Aug 29, 2008 | Oklahoma | Compliance order with a penalty | 1 violation: Simazine |
| Dec 21, 2007 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Sep 7, 2007 | Oklahoma | Compliance order with a penalty | 58 violations (58 health-based): CARBON, TOTAL, Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Jul 12, 2007 | Oklahoma | Compliance order with a penalty | 1 violation: Nitrate-Nitrite |
| May 24, 2007 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Feb 7, 2007 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Jan 3, 2007 | Oklahoma | Compliance order (no penalty) | 25 violations (25 health-based): Interim Enhanced Surface Water Treatment Rule, Total Trihalomethanes (TTHMs), Surface Water Treatment Rule |
| Dec 8, 2006 | Oklahoma | Compliance order with a penalty | 3 violations (3 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Mar 3, 2005 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): CARBON, TOTAL |
| Sep 20, 2004 | Oklahoma | Compliance order with a penalty | 19 violations (19 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL, Haloacetic Acids (HAA5) |
| Sep 7, 2004 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): CARBON, TOTAL |
| May 25, 2004 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): CARBON, TOTAL |
| Mar 3, 2004 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): CARBON, TOTAL |
| Feb 11, 2004 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule |
| Nov 13, 2003 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Aug 12, 2003 | Oklahoma | Compliance order with a penalty | 3 violations (3 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL |
| Jul 8, 2003 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule |
| May 8, 2003 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): CARBON, TOTAL, Total Trihalomethanes (TTHMs) |
| Feb 24, 2003 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): CARBON, TOTAL |
11 older actions are not listed here. EPA ECHO has the complete list.
What the violations mean
Total Trihalomethanes (TTHMs)
14 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Interim Enhanced Surface Water Treatment Rule
9 incidentsThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Haloacetic Acids (HAA5)
9 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
CARBON, TOTAL
6 incidentsThe system did not complete a treatment step or action that federal rules require for CARBON, TOTAL (a treatment technique violation).
The utility had to notify customers about each of these violations.
Surface Water Treatment Rule
5 incidentsThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique 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
McAlester PWA draws water from 1 surface water intake. 5 other community water systems buy water from McAlester PWA.
Community systems that buy water from it
- Pittsburg Co. RWD #16 McAlester, OK
- Pittsburg Co. RWD #5 McAlester, OK
- Pittsburg Co. RWD #6 (Alderson) McAlester, OK
- Pittsburg Co. RWD #7 (Arpelar) McAlester, OK
- Pittsburg Co. RWD #9 (McAlester) McAlester, OK
Annual water quality report
McAlester PWA 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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