Public water system record
Utu Utu Gwaitu Paiute Tribe
Serves Crowley Lake, Mono County, CA · 222 people served
Federal records show 14 health-based violations and 107 monitoring/reporting issues for Utu Utu Gwaitu Paiute Tribe in the last ten years, including an unresolved Groundwater Rule violation.
System profile
Source water
Groundwater
ZIP
93512
EPA system ID
090600159
- Health-based violations, last 10 years
- 14
- Resolved
- 5
- Unresolved
- 1
- Archived by EPA
- 8
- Any acute record
- No
- Monitoring issues, last 10 years
- 107
Key facts
- Utu Utu Gwaitu Paiute Tribe draws water from 2 wells.
- Highest measured level in the last 10 years: Arsenic, 0.0356 mg/L, federal limit 0.01 mg/L (3.6 times the limit), 2022.
- Record on file since 1996, with 32 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 45 service lines.
Check whether Utu Utu Gwaitu Paiute Tribe 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 30, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0356 mg/L, federal limit 0.01 mg/L (3.6 times the limit)
|
330 | Oct 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0356 mg/L, federal limit 0.01 mg/L (3.6 times the limit)
|
330 | Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0356 mg/L, federal limit 0.01 mg/L (3.6 times the limit)
|
330 | Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0356 mg/L, federal limit 0.01 mg/L (3.6 times the limit)
|
330 | Oct 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0172 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
|
330 | Jul 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0126 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Apr 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0178 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
|
330 | Jan 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 30, 2020 | Active | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0178 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
|
330 | Jul 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 18, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 18, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 18, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.0111 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
E. coli
Monitoring and reporting
|
Nov 1, 2022 | Active |
|
Public Notice
OTHER
|
Oct 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Public Notice
OTHER
|
May 1, 2022 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 1, 2022 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Mar 1, 2022 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Jan 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Jul 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Active |
|
Public Notice
OTHER
|
Jun 1, 2021 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Apr 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Apr 1, 2021 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Mar 1, 2021 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Feb 1, 2021 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Jan 1, 2021 | Active |
|
Public Notice
OTHER
|
Jan 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2021 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2020 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Sep 30, 2020 | Active |
|
Public Notice
OTHER
|
Sep 1, 2020 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Aug 1, 2020 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Jul 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Jan 1, 2020 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Dec 1, 2019 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Sep 18, 2019 | Active |
|
Public Notice
OTHER
|
Sep 18, 2019 | Active |
|
Public Notice
OTHER
|
Sep 18, 2019 | Active |
|
Public Notice
OTHER
|
Aug 1, 2019 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Jul 1, 2019 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Nov 1, 2018 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Sep 1, 2018 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 1, 2018 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Apr 1, 2017 | Active |
|
Revised Total Coliform Rule
OTHER
|
Apr 1, 2016 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
Full record since 1996
EPA's records for Utu Utu Gwaitu Paiute Tribe go back to 1996. Before October 19, 2016 they list 32 health-based violations (32 resolved) and 76 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 3 |
| 2000s | 14 | 15 |
| 2010 to October 18, 2016 | 16 | 58 |
| October 19, 2016 to 2019 | 4 | 28 |
| 2020s | 10 | 45 |
Most recent health-based violation before October 19, 2016: Arsenic, began January 2013, Resolved.
Show all 32 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.02683 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jan 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02683 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02683 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jul 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02683 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Apr 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0265 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jan 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02667 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02375 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02375 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
Apr 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0235 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
Jan 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0235 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
Oct 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02375 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
|
Jul 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02675 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Apr 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02675 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02675 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02743 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02743 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02713 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jan 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02763 mg/L, federal limit 0.01 mg/L (2.8 times the limit)
|
Oct 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02638 mg/L, federal limit 0.01 mg/L (2.6 times the limit)
|
Jul 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02583 mg/L, federal limit 0.01 mg/L (2.6 times the limit)
|
Apr 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Jan 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Oct 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1998 | Resolved |
What the violations mean
Arsenic
9 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Groundwater Rule
5 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Utu Utu Gwaitu Paiute Tribe draws water from 2 wells.
Annual water quality report
Utu Utu Gwaitu Paiute Tribe 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 Utu Utu Gwaitu Paiute Tribe 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 EPA Region 9.
Certified drinking water labs by state EPA guidance for private wells