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Santa Rosa Tachi Palace

PWS ID: 090605136 · Lemoore, 09 93245

Santa Rosa Tachi Palace serves 9,000 people in Lemoore, 09 using Groundwater water sources. It has 218 recorded EPA violations, including 72 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: Santa Rosa Tachi Palace

Santa Rosa Tachi Palace is a native american-owned non-transient non-community water system that delivers drinking water to 9,000 residents in Lemoore, 09 through 12 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 218 total violations for this system , of which 72 (33%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 16 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is TTHM, recorded in 69 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across 09, EPA tracks 323 public water systems serving 555,721 people, with 48,296 cumulative violations and 3,354 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 149.5 violations. Santa Rosa Tachi Palace's 218 violations sit above the 09 average. Statewide, 30 of 41 UCMR5-tested systems have reported PFAS detections (73.2%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
9,000
Total Violations
218
Health-Based Violations
72
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
12
School/Daycare
No
MCL Violations
72
Monitoring Violations
16
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 69 2013
Coliform (TCR) MR 10 2006
Coliform (TCR) MCL 3 2011
E. COLI MR 2 2016
Nitrate MR 1 2004
TTHM MR 1 2006
Lead and Copper Rule MR 1 2002
Total Haloacetic Acids (HAA5) MR 1 2006

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFMBA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 7/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 7/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
HFPO-DA 7/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 7/17/2024 <9 µg/L 9 µg/L Not Detected
6:2 FTS 7/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 7/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 7/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 1/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 1/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 1/9/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 1/9/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFHxA 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 1/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 1/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 1/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 1/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 1/9/2024 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 1/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 1/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 1/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 1/9/2024 <0.003 µg/L 0.003 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Santa Rosa Tachi Palace.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID 090605136 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

09 Drinking Water Authority

09's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 09 regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2016 E. COLI MR 2 SDWIS / 090605136 / 3014
2013 TTHM MCL 69 SDWIS / 090605136 / 2950
2011 Coliform (TCR) MCL 3 SDWIS / 090605136 / 3100
2006 Coliform (TCR) MR 10 SDWIS / 090605136 / 3100
2006 TTHM MR 1 SDWIS / 090605136 / 2950
2006 Total Haloacetic Acids (HAA5) MR 1 SDWIS / 090605136 / 2456
2004 Nitrate MR 1 SDWIS / 090605136 / 1040
2002 Lead and Copper Rule MR 1 SDWIS / 090605136 / 5000

How Santa Rosa Tachi Palace Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Santa Rosa Tachi Palace 09 avg Federal benchmark
Total violations 218 149.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 72 10.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 73.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 9,000 1,720 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 323 regulated public water systems in 09.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Santa Rosa Tachi Palace water safe to drink? ▼
Santa Rosa Tachi Palace (PWS ID: 090605136) has 218 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 9,000 people using Groundwater sources.
How many people does Santa Rosa Tachi Palace serve? ▼
Santa Rosa Tachi Palace serves 9,000 people in Lemoore, 09. It is a Native American-owned system using Groundwater water sources with 12 service connections.
What type of violations does Santa Rosa Tachi Palace have? ▼
Santa Rosa Tachi Palace has 218 total violations: 72 health-based violations (MCL exceedances or treatment failures), 16 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Santa Rosa Tachi Palace water? ▼
No. Santa Rosa Tachi Palace was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Santa Rosa Tachi Palace use? ▼
Santa Rosa Tachi Palace uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial