Public water system record
Stillwater Utilities Authority
Serves Stillwater, Payne County, OK · 53,000 people served
Federal records show 15 health-based violations and 4 monitoring/reporting issues for Stillwater Utilities Authority in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 15
- Resolved
- 15
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 4
Key facts
- Stillwater Utilities Authority draws water from 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by Oklahoma, October 2023.
- Record on file since 1991, with 17 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 556 unknown out of 17,348 service lines.
Check whether Stillwater Utilities 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 |
|---|---|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2023 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2023 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2022 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jul 1, 2022 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jan 1, 2022 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2021 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2018 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2018 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2018 | Resolved | Yes |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jul 1, 2017 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | May 1, 2017 | Resolved | Yes |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Apr 1, 2017 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Apr 1, 2017 | Resolved | Yes |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jan 1, 2017 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
CARBON, TOTAL
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Bromate
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Nitrate-Nitrite
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
Full record since 1991
EPA's records for Stillwater Utilities Authority go back to 1991. Before October 19, 2016 they list 17 health-based violations (11 resolved, 6 archived by EPA without a recorded fix) and 15 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 14 | 2 |
| 2000s | 0 | 10 |
| 2010 to October 18, 2016 | 3 | 3 |
| October 19, 2016 to 2019 | 8 | 2 |
| 2020s | 6 | 0 |
Most recent health-based violation before October 19, 2016: CARBON, TOTAL, began October 2016, Resolved.
Show all 17 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2016 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1999 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1999 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1999 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1993 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1993 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1993 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1992 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1991 | Resolved |
Enforcement actions
Oklahoma regulators took 6 formal enforcement actions against Stillwater Utilities Authority between 2002 and 2023. The most recent was a compliance order (no penalty) in October 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 24, 2023 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Surface Water Treatment Rule |
| Jul 12, 2023 | Oklahoma | Compliance order (no penalty) | 2 violations (2 health-based): Surface Water Treatment Rule |
| Feb 9, 2023 | Oklahoma | Compliance order (no penalty) | 3 violations (3 health-based): CARBON, TOTAL |
| Jul 20, 2006 | Oklahoma | Compliance order with a penalty | 2 violations: Bromate |
| Apr 11, 2006 | Oklahoma | Compliance order with a penalty | 3 violations: Bromate |
| May 10, 2002 | Oklahoma | Compliance order with a penalty | 4 violations: CARBON, TOTAL |
What the violations mean
CARBON, TOTAL
8 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.
Interim Enhanced Surface Water Treatment Rule
5 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
Surface Water Treatment Rule
2 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.
Where the water comes from
Stillwater Utilities Authority draws water from 1 surface water intake. 5 other community water systems buy water from Stillwater Utilities Authority. 1 other public water system has an emergency connection to Stillwater Utilities Authority.
Community systems that buy water from it
- 51 East Water Stillwater, OK
- Lone Chimney Water Association Glencoe, OK
- Noble County RWD #2 Perry, OK
- Payne Co RW Corp #3 Stillwater, OK
- Payne Co RWD #3 Stillwater, OK
Annual water quality report
Stillwater Utilities 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 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