States ›Oklahoma ›Beaver County ›Little Ponderosa

Little Ponderosa, OK Tap Water Quality 2026

Water quality report for Little Ponderosa, OK — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Little Ponderosa's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: 4t Investors Llc PWSID: OK2000453 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.50 ppb, 3% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Little Ponderosa earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 0.50 ppb — 3% of the federal action level
PFAS never sampled at this system
111 violations since 2015, 2 health-based
No violations currently open
Little Ponderosa's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.50 ppb — 3% of the federal action level
✓ Lower lead than 98% of Oklahoma utilities
Population Served
43
~75 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
111 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
3% of EPA action level
0.50 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.50 ppb, 3% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
E. COLI MONITORING AND REPORTING — 0 2025 Unaddressed
Endrin MONITORING AND REPORTING — 0.002 mg/L 2025 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2025 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2025 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2025 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2025 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2025 Archived
Endothall MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2025 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2025 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2025 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2025 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2025 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2025 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2025 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2025 Archived
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2025 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2025 Archived
LASSO MONITORING AND REPORTING — — 2025 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2025 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2025 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2025 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2025 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2025 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2025 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2025 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2025 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2025 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2025 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2025 Archived
E. COLI MONITORING AND REPORTING — 0 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
E. COLI MONITORING AND REPORTING — 0 2024 Unaddressed
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
E. COLI MONITORING AND REPORTING — 0 2024 Unaddressed
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
E. COLI MONITORING AND REPORTING — 0 2023 Unaddressed
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022–2023 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2022–2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
E. COLI MONITORING AND REPORTING — 0 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019–2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019–2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2019 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2019 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2019 Resolved
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018–2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018–2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2018 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2017 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016–2017 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2016–2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2015 Resolved
E. COLI MONITORING AND REPORTING — 0 2015 Resolved
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 2015 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015 Resolved
Stage 1 Disinfectants and Disinfection Byproducts Rule TREATMENT TECHNIQUE — — 2015 Addressed
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

111 violations are on record since 2015, of which 2 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility 4t Investors Llc
PWSID OK2000453
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 43
Service connections 75
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Little Ponderosa tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.50 ppb, 3% of the action level.
Does Little Ponderosa water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Little Ponderosa? ▼
4t Investors Llc (PWSID OK2000453). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-09-02. No significant deficiencies were recorded.

What Should Little Ponderosa Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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