Public water system record

Tule River Reservation Main

Serves an area of Tulare County, CA that includes El Rancho · 2,560 people served

Federal records show 15 health-based violations and 172 monitoring/reporting issues for Tule River Reservation Main in the last ten years, including an unresolved Groundwater Rule violation.

  • 090600156
  • PORTERVILLE
  • CA
  • 2,560 served

System profile

Source water Surface water
ZIP 93257
EPA system ID 090600156

Verify this system on EPA ECHO →

Health-based violations, last 10 years
15
Resolved
6
Unresolved
9
Any acute record
No
Monitoring issues, last 10 years
172

Key facts

  • Tule River Reservation Main draws water from 5 wells and 2 surface water intakes.
  • Highest measured level in the last 10 years: Arsenic, 0.0117 mg/L, federal limit 0.01 mg/L (1.2 times the limit), 2017.
  • Record on file since 1991, with 19 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 394 service lines.

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Health-based violations

Since October 2016

Violation 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 Nov 19, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Nov 19, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Nov 19, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Nov 19, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Sep 19, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jun 30, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jun 30, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Feb 14, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Feb 14, 2025 Active No
Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2023 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.0104 mg/L, federal limit 0.01 mg/L (at or just above the limit)
330 Apr 1, 2019 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.0106 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
330 Oct 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.0103 mg/L, federal limit 0.01 mg/L (at or just above the limit)
330 Jul 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.0117 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
330 Jul 1, 2017 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.0114 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
330 Jan 1, 2017 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
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.
Nitrate
Monitoring and reporting
Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Public Notice
OTHER
Sep 19, 2025 Active
Chlorine
Monitoring and reporting
Jul 1, 2025 Resolved
Arsenic
Monitoring and reporting
Jul 1, 2025 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2025 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2025 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2025 Resolved
Nitrate
Monitoring and reporting
Oct 1, 2024 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2024 Resolved
Revised Total Coliform Rule
RPT
Sep 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2024 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Apr 1, 2023 Resolved
Public Notice
OTHER
Mar 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2023 Resolved
Public Notice
OTHER
Feb 1, 2023 Active
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2023 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2023 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Combined Uranium
Monitoring and reporting
Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Ethylbenzene
Monitoring and reporting
Oct 1, 2022 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Apr 1, 2022 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Jan 1, 2022 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Oct 1, 2021 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Oct 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Aug 1, 2021 Resolved
Public Notice
OTHER
Oct 1, 2018 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Oct 1, 2018 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Oct 1, 2018 Resolved
Public Notice
OTHER
Jul 1, 2018 Active
Consumer Confidence Rule
OTHER
Jul 1, 2018 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2018 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2018 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Oct 1, 2017 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Oct 1, 2017 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Oct 1, 2017 Resolved
Public Notice
OTHER
Jul 1, 2017 Active
Combined Radium (-226 and -228)
Monitoring and reporting
Jul 1, 2017 Resolved
Combined Uranium
Monitoring and reporting
Jul 1, 2017 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jul 1, 2017 Resolved
Styrene
Monitoring and reporting
Jul 1, 2017 Resolved
Ethylbenzene
Monitoring and reporting
Jul 1, 2017 Resolved
Toluene
Monitoring and reporting
Jul 1, 2017 Resolved
Benzene
Monitoring and reporting
Jul 1, 2017 Resolved
CHLOROBENZENE
Monitoring and reporting
Jul 1, 2017 Resolved
Tetrachloroethylene
Monitoring and reporting
Jul 1, 2017 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jul 1, 2017 Resolved
Trichloroethylene
Monitoring and reporting
Jul 1, 2017 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jul 1, 2017 Resolved
Carbon tetrachloride
Monitoring and reporting
Jul 1, 2017 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jul 1, 2017 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jul 1, 2017 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2017 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jul 1, 2017 Resolved
Vinyl chloride
Monitoring and reporting
Jul 1, 2017 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jul 1, 2017 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jul 1, 2017 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jul 1, 2017 Resolved
Chlordane
Monitoring and reporting
Jul 1, 2017 Resolved
Xylenes, Total
Monitoring and reporting
Jul 1, 2017 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Jul 1, 2017 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Jul 1, 2017 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Jul 1, 2017 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2017 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jul 1, 2017 Resolved
Pentachlorophenol
Monitoring and reporting
Jul 1, 2017 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jul 1, 2017 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jul 1, 2017 Resolved
2,4,5-TP
Monitoring and reporting
Jul 1, 2017 Resolved
2,4-D
Monitoring and reporting
Jul 1, 2017 Resolved
Heptachlor epoxide
Monitoring and reporting
Jul 1, 2017 Resolved
Heptachlor
Monitoring and reporting
Jul 1, 2017 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Jul 1, 2017 Resolved
LASSO
Monitoring and reporting
Jul 1, 2017 Resolved
Atrazine
Monitoring and reporting
Jul 1, 2017 Resolved
Carbofuran
Monitoring and reporting
Jul 1, 2017 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jul 1, 2017 Resolved
Dinoseb
Monitoring and reporting
Jul 1, 2017 Resolved
Picloram
Monitoring and reporting
Jul 1, 2017 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jul 1, 2017 Resolved
Simazine
Monitoring and reporting
Jul 1, 2017 Resolved
OXAMYL
Monitoring and reporting
Jul 1, 2017 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jul 1, 2017 Resolved
Glyphosate
Monitoring and reporting
Jul 1, 2017 Resolved
Endothall
Monitoring and reporting
Jul 1, 2017 Resolved
Diquat
Monitoring and reporting
Jul 1, 2017 Resolved
Dalapon
Monitoring and reporting
Jul 1, 2017 Resolved
Toxaphene
Monitoring and reporting
Jul 1, 2017 Resolved
Methoxychlor
Monitoring and reporting
Jul 1, 2017 Resolved
BHC-GAMMA
Monitoring and reporting
Jul 1, 2017 Resolved
Endrin
Monitoring and reporting
Jul 1, 2017 Resolved
Nitrite
Monitoring and reporting
Jul 1, 2017 Resolved
Nitrate
Monitoring and reporting
Jul 1, 2017 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Apr 1, 2017 Resolved
Nitrite
Monitoring and reporting
Apr 1, 2017 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2017 Resolved
Public Notice
OTHER
Jan 1, 2017 Active
Revised Total Coliform Rule
Monitoring violation
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
Styrene
Monitoring and reporting
Jan 1, 2017 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2017 Resolved
Toluene
Monitoring and reporting
Jan 1, 2017 Resolved
Benzene
Monitoring and reporting
Jan 1, 2017 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2017 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2017 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2017 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2017 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2017 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2017 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2017 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2017 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2017 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2017 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2017 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2017 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2017 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2017 Resolved
Chlordane
Monitoring and reporting
Jan 1, 2017 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2017 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Jan 1, 2017 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Jan 1, 2017 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Jan 1, 2017 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2017 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2017 Resolved
Pentachlorophenol
Monitoring and reporting
Jan 1, 2017 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jan 1, 2017 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jan 1, 2017 Resolved
2,4,5-TP
Monitoring and reporting
Jan 1, 2017 Resolved
2,4-D
Monitoring and reporting
Jan 1, 2017 Resolved
Heptachlor epoxide
Monitoring and reporting
Jan 1, 2017 Resolved
Heptachlor
Monitoring and reporting
Jan 1, 2017 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Jan 1, 2017 Resolved
LASSO
Monitoring and reporting
Jan 1, 2017 Resolved
Atrazine
Monitoring and reporting
Jan 1, 2017 Resolved
Carbofuran
Monitoring and reporting
Jan 1, 2017 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jan 1, 2017 Resolved
Dinoseb
Monitoring and reporting
Jan 1, 2017 Resolved
Picloram
Monitoring and reporting
Jan 1, 2017 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jan 1, 2017 Resolved
Simazine
Monitoring and reporting
Jan 1, 2017 Resolved
OXAMYL
Monitoring and reporting
Jan 1, 2017 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jan 1, 2017 Resolved
Glyphosate
Monitoring and reporting
Jan 1, 2017 Resolved
Endothall
Monitoring and reporting
Jan 1, 2017 Resolved
Diquat
Monitoring and reporting
Jan 1, 2017 Resolved
Dalapon
Monitoring and reporting
Jan 1, 2017 Resolved
Toxaphene
Monitoring and reporting
Jan 1, 2017 Resolved
Methoxychlor
Monitoring and reporting
Jan 1, 2017 Resolved
BHC-GAMMA
Monitoring and reporting
Jan 1, 2017 Resolved
Endrin
Monitoring and reporting
Jan 1, 2017 Resolved
Nitrite
Monitoring and reporting
Jan 1, 2017 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2016 Resolved
Nitrite
Monitoring and reporting
Jan 1, 2016 Resolved
Thallium, Total
Monitoring and reporting
Jan 1, 2014 Resolved
Beryllium, Total
Monitoring and reporting
Jan 1, 2014 Resolved
Antimony, Total
Monitoring and reporting
Jan 1, 2014 Resolved
Selenium
Monitoring and reporting
Jan 1, 2014 Resolved
Mercury
Monitoring and reporting
Jan 1, 2014 Resolved
Fluoride
Monitoring and reporting
Jan 1, 2014 Resolved
Chromium (total)
Monitoring and reporting
Jan 1, 2014 Resolved
Cadmium
Monitoring and reporting
Jan 1, 2014 Resolved
Barium
Monitoring and reporting
Jan 1, 2014 Resolved

Full record since 1991

EPA's records for Tule River Reservation Main go back to 1991. Before October 19, 2016 they list 19 health-based violations (19 resolved) and 311 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 10 108
2000s 9 170
2010 to October 18, 2016 0 33
October 19, 2016 to 2019 5 130
2020s 10 32

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began August 2009, Resolved.

Show all 19 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2009 Resolved
Total Coliform
Contaminant limit exceeded
Mar 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 2004 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Sep 1, 2003 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2000 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 2000 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2000 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2000 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 1998 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 1997 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 1991 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 1991 Resolved

What the violations mean

Groundwater Rule

9 incidents

The 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.

Arsenic

5 incidents

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Surface Water Treatment Rule

1 incident

The 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 this violation.

Where the water comes from

Tule River Reservation Main draws water from 5 wells and 2 surface water intakes.

Annual water quality report

Tule River Reservation Main 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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.