Public water system record
Indiahoma Public Works Authority
Serves Indiahoma, Comanche County, OK · 350 people served
Federal records show 35 health-based violations and 17 monitoring/reporting issues for Indiahoma Public Works Authority 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
Purchased surface water
ZIP
73552
EPA system ID
OK2001609
- Health-based violations, last 10 years
- 35
- Resolved
- 1
- Unresolved
- 0
- Archived by EPA
- 34
- Any acute record
- No
- Monitoring issues, last 10 years
- 17
Key facts
- Indiahoma Public Works Authority draws water from 1 well.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.194 mg/L, federal limit 0.08 mg/L (2.4 times the limit), 2024.
- Most recent formal enforcement: compliance order with a penalty by Oklahoma, August 2024.
- Record on file since 1978, with 18 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 232 service lines.
Check whether Indiahoma Public Works Authority 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 0.172 mg/L, federal limit 0.08 mg/L (2.2 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 0.186 mg/L, federal limit 0.08 mg/L (2.3 times 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 |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.187 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
220 | Apr 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 0.185 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
220 | Jan 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 |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.177 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Oct 1, 2024 |
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 0.194 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
|
220 | Jul 1, 2024 |
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 0.165 mg/L, federal limit 0.08 mg/L (2.1 times the limit)
|
220 | Apr 1, 2024 |
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 0.152 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Jan 1, 2024 |
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 0.152 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Oct 1, 2023 |
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 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2023 |
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 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2023 |
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 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Jan 1, 2023 |
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 0.112 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
|
220 | Oct 1, 2022 |
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 0.155 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Jul 1, 2022 |
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 0.19 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
|
220 | Apr 1, 2022 |
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 0.186 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
220 | Jan 1, 2022 |
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 0.19 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
|
220 | Oct 1, 2021 |
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 0.178 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Jul 1, 2021 |
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 0.139 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
220 | Apr 1, 2021 |
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 0.144 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
220 | Jan 1, 2021 |
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 0.144 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
220 | Oct 1, 2020 |
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 0.136 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
220 | Jul 1, 2020 |
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 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Apr 1, 2020 |
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 0.193 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
|
220 | Apr 1, 2019 |
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 0.14 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
220 | Jan 1, 2019 |
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 0.176 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Oct 1, 2018 |
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 0.176 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Jul 1, 2018 |
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 0.179 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Apr 1, 2018 |
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 0.175 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Jan 1, 2018 |
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 0.172 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
220 | Oct 1, 2017 |
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 0.155 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Jul 1, 2017 |
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 0.142 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
220 | Apr 1, 2017 |
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 0.149 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
220 | Jan 1, 2017 |
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 0.144 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
220 | Oct 1, 2016 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 20, 2024 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Dec 30, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 29, 2020 | Resolved |
Full record since 1978
EPA's records for Indiahoma Public Works Authority go back to 1978. Before October 19, 2016 they list 18 health-based violations (7 resolved, 11 archived by EPA without a recorded fix) and 11 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 2 | 0 |
| 1980s | 2 | 0 |
| 1990s | 0 | 2 |
| 2000s | 3 | 4 |
| 2010 to October 18, 2016 | 11 | 5 |
| October 19, 2016 to 2019 | 10 | 0 |
| 2020s | 24 | 17 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Archived.
Show all 18 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.144 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Oct 1, 2016 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.155 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Jul 1, 2016 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.182 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
Apr 1, 2016 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.178 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
Jan 1, 2016 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.186 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
Oct 1, 2015 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.222 mg/L, federal limit 0.08 mg/L (2.8 times the limit)
|
Jul 1, 2015 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.201 mg/L, federal limit 0.08 mg/L (2.5 times the limit)
|
Apr 1, 2015 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.198 mg/L, federal limit 0.08 mg/L (2.5 times the limit)
|
Jan 1, 2015 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.195 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
|
Oct 1, 2014 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.177 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
Jul 1, 2014 | Archived |
|
Lead and Copper Rule
Treatment technique failure
|
Oct 1, 2012 | Resolved |
|
Fluoride
Contaminant limit exceeded
Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)
|
Jul 1, 2007 | Resolved |
|
Fluoride
Contaminant limit exceeded
Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)
|
Apr 1, 2007 | Resolved |
|
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
|
Jan 1, 2002 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Feb 1, 1982 | Archived |
|
Fluoride
Contaminant limit exceeded
|
Feb 1, 1982 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
May 25, 1979 | Resolved |
|
Fluoride
Contaminant limit exceeded
|
Feb 15, 1978 | Resolved |
Enforcement actions
Oklahoma regulators took 10 formal enforcement actions against Indiahoma Public Works Authority between 2006 and 2024. The most recent was a compliance order with a penalty in August 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 26, 2024 | Oklahoma | Compliance order with a penalty | 43 violations (43 health-based): Total Trihalomethanes (TTHMs) |
| Aug 8, 2016 | Oklahoma | Compliance order with a penalty | 32 violations (32 health-based): Total Trihalomethanes (TTHMs) |
| Dec 30, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Oct 12, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Aug 20, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Apr 10, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Feb 10, 2015 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Sep 8, 2014 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
| Mar 10, 2008 | Oklahoma | Compliance order with a penalty | 2 violations (2 health-based): Fluoride |
| Dec 4, 2006 | Oklahoma | Compliance order with a penalty | 1 violation (1 health-based): Fluoride |
What the violations mean
Total Trihalomethanes (TTHMs)
34 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
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
Indiahoma Public Works Authority draws water from 1 well. It also buys water from Comanche Co RWD #4.
Buys water from
- Comanche Co RWD #4 Cache, OK
Annual water quality report
Indiahoma Public Works Authority 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 Indiahoma Public Works Authority 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