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Non-Transient Non-Community Water System · PWS OK1021697

Sequoyah State Park Lodge

Hulbert, Oklahoma 74441 - drinking water served from surface water sources to 1,030 people, tracked in EPA SDWIS and UCMR5.

1,030
People served
430
EPA violations
303
Health-based
Untested
UCMR5 result

The verdict

EPA records 430 drinking-water violations at Sequoyah State Park Lodge, 70% of them health-based - above the Oklahoma per-system average.

430
Total EPA violations on record
70%
Health-based (MCL / treatment failure)
1,030
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sequoyah State Park Lodge

Sequoyah State Park Lodge is a state-owned non-transient non-community water system that delivers drinking water to 1,030 residents in Hulbert, Oklahoma (Cherokee County) through 176 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 430 total violations for this system , of which 303 (70%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 121 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is TTHM, recorded in 204 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oklahoma, EPA tracks 1,262 public water systems serving 3,699,452 people, with 336,706 cumulative violations and 113,804 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 266.8 violations. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%).

Sequoyah State Park Lodge's 430 violations sit above the Oklahoma average.

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
1,030
Total Violations
430
Health-Based Violations
303
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
State
Connections
176
County
Cherokee
School/Daycare
No
MCL Violations
282
Monitoring Violations
121
Treatment Tech Violations
21

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 204 2016
Total Haloacetic Acids (HAA5) MCL 75 2010
CARBON, TOTAL MR 58 2024
Total Haloacetic Acids (HAA5) MR 18 2013
TTHM MR 18 2013
CARBON, TOTAL TT 13 2007
Coliform (TCR) MR 13 2011
Lead and Copper Rule MR 8 2009
Surface Water Treatment Rule MR 6 2002
Coliform (TCR) MCL 3 2010
Lead and Copper Rule TT 3 2012
Interim Enhanced Surface Water Treatment Rule TT 3 2010
LEAD AND COPPER RULE REVISIONS RPT 2 2024
LEAD AND COPPER RULE REVISIONS TT 2 2024

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 Sequoyah State Park Lodge.

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 OK1021697 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oklahoma Drinking Water Authority

Oklahoma'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 OK 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
2024 CARBON, TOTAL MR 58 SDWIS / OK1021697 / 2920
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / OK1021697 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OK1021697 / 5200
2016 TTHM MCL 204 SDWIS / OK1021697 / 2950
2013 Total Haloacetic Acids (HAA5) MR 18 SDWIS / OK1021697 / 2456
2013 TTHM MR 18 SDWIS / OK1021697 / 2950
2012 Lead and Copper Rule TT 3 SDWIS / OK1021697 / 5000
2011 Coliform (TCR) MR 13 SDWIS / OK1021697 / 3100
2010 Total Haloacetic Acids (HAA5) MCL 75 SDWIS / OK1021697 / 2456
2010 Coliform (TCR) MCL 3 SDWIS / OK1021697 / 3100
2010 Interim Enhanced Surface Water Treatment Rule TT 3 SDWIS / OK1021697 / 0300
2009 Lead and Copper Rule MR 8 SDWIS / OK1021697 / 5000
2007 CARBON, TOTAL TT 13 SDWIS / OK1021697 / 2920
2002 Surface Water Treatment Rule MR 6 SDWIS / OK1021697 / 0200

How Sequoyah State Park Lodge Compares

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

Metric Sequoyah State Park Lodge Oklahoma avg Federal benchmark
Total violations 430 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 303 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,030 2,931 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,262 regulated public water systems in Oklahoma.

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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Sequoyah State Park Lodge water safe to drink? ▼
Sequoyah State Park Lodge (PWS ID: OK1021697) has 430 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,030 people using Surface Water sources.
How many people does Sequoyah State Park Lodge serve? ▼
Sequoyah State Park Lodge serves 1,030 people in Hulbert, Oklahoma. It is a State-owned system using Surface Water water sources with 176 service connections.
What type of violations does Sequoyah State Park Lodge have? ▼
Sequoyah State Park Lodge has 430 total violations: 303 health-based violations (MCL exceedances or treatment failures), 121 monitoring/reporting violations, and 21 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sequoyah State Park Lodge water? ▼
No PFAS testing data is available for Sequoyah State Park Lodge under the EPA's UCMR5 monitoring program.
What water source does Sequoyah State Park Lodge use? ▼
Sequoyah State Park Lodge uses Surface Water 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.