Current Noncompliance OK 1 HEALTH-BASED VIOLATION ON RECORD

Ottawa Company Rwd #6

EPA ID: OK2005859 · 560 people served · 3 ZIP codes

ZipCheckup's reading of EPA records for Ottawa Company Rwd #6 (OK2005859): 1 violation recorded with unresolved status in the SDWIS data used. Federal data lists 1 violation as unresolved at Ottawa Company Rwd #6 - roughly 560 residents in the service area.

Data: EPA SDWIS

B · 83
Avg Safety Score
560
People Served
3
ZIP Codes Served
82
Violations (since 2021)
Groundwater
Water Source
Below the reporting limit
Most recent lead 90th percentile on record (monitoring period ending 2026-12-31)
Zone 3
County Radon Potential · Low
29
Contaminants Flagged
$136K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Ottawa Company Rwd #6 Source: EPA SDWIS service area boundaries.

Service area boundary - average Home Safety grade of mapped ZIPs: B

Demographics of ZIP Codes Served

$49,668
Median Household Income
27,327
Population of ZIP Codes Served (Census)
100%
Disadvantaged Population
80th
Poverty Percentile
83th
Energy Burden Percentile
60%
Pre-1986 Housing

The ZIP codes associated with Ottawa Company Rwd #6 have a median household income of $49,668 and about 27,327 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 60% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 100% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

💧 Where Does Your Water Come From?

Groundwater

Ottawa Company Rwd #6's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Elevated Risk
Source Contamination Risk
40th
Wastewater Discharge Proximity
53th
Superfund Site Proximity

Infrastructure Risk

50 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
19 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 72% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Oklahoma

26 violations
37 violations
B 72 violations
Dibble
550 people
2 violations
9 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Water Filtration
Water Filtration $600
Total Estimated Cost $600

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$7,500
10 years
$15,000
20 years
$30,000

Compare: Estimated remediation cost is $600 (one-time) vs. $15,000 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

Ottawa Company Rwd #6 (EPA ID: OK2005859) is a community water system in Oklahoma that serves approximately 560 people from groundwater sources.

This system provides water to 3 ZIP codes across 3 communities.

ZIP-Area Home Safety Context: B (83/100)

This is the average Home Safety Score for 1 of 3 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

1 current noncompliance record in the accepted 2026Q2 snapshot; none are classified as health-based in this evidence.

Status breakdown for accepted records with record years 2021-2026: 34 resolved, 47 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
July 1, 2025 Gross Alpha Non-health-based Archived
July 1, 2025 Combined Uranium Non-health-based Archived
July 1, 2025 Combined Radium (-226 and -228) Non-health-based Archived
July 1, 2025 Gross Beta Particle Activity Non-health-based Archived
July 1, 2025 1,2,4-Trichlorobenzene Non-health-based Archived
July 1, 2025 cis-1,2-Dichloroethylene Non-health-based Archived
July 1, 2025 Xylenes, Total Non-health-based Archived
July 1, 2025 DICHLOROMETHANE Non-health-based Archived
July 1, 2025 o-Dichlorobenzene Non-health-based Archived
July 1, 2025 p-Dichlorobenzene Non-health-based Archived
July 1, 2025 Vinyl chloride Non-health-based Archived
July 1, 2025 1,1-Dichloroethylene Non-health-based Archived
July 1, 2025 trans-1,2-Dichloroethylene Non-health-based Archived
July 1, 2025 1,2-Dichloroethane Non-health-based Archived
July 1, 2025 1,1,1-Trichloroethane Non-health-based Archived
July 1, 2025 Carbon tetrachloride Non-health-based Archived
July 1, 2025 1,2-Dichloropropane Non-health-based Archived
July 1, 2025 Trichloroethylene Non-health-based Archived
July 1, 2025 1,1,2-Trichloroethane Non-health-based Archived
July 1, 2025 Tetrachloroethylene Non-health-based Archived

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Glyphosate Other Violation 3 No
1,2,4-Trichlorobenzene Monitoring & Reporting 3 No
cis-1,2-Dichloroethylene Monitoring & Reporting 3 No
Xylenes, Total Monitoring & Reporting 3 No
DICHLOROMETHANE Monitoring & Reporting 3 No
o-Dichlorobenzene Monitoring & Reporting 3 No
p-Dichlorobenzene Monitoring & Reporting 3 No
Vinyl chloride Monitoring & Reporting 3 No
1,1-Dichloroethylene Monitoring & Reporting 3 No
trans-1,2-Dichloroethylene Monitoring & Reporting 3 No
1,2-Dichloroethane Monitoring & Reporting 3 No
1,1,1-Trichloroethane Monitoring & Reporting 3 No
Carbon tetrachloride Monitoring & Reporting 3 No
1,2-Dichloropropane Monitoring & Reporting 3 No
Trichloroethylene Monitoring & Reporting 3 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
Below the reporting limit No 2026-12-31

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

1 of 3 ZIP records with known zones is in EPA Radon Zone 2. 2 of 3 ZIP records with known zones are in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OK or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Ottawa Company Rwd #6 (OK2005859) on EPA.gov.

Frequently Asked Questions

Is Ottawa Company Rwd #6 water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does Ottawa Company Rwd #6 serve?

Ottawa Company Rwd #6 serves approximately 560 people across 3 ZIP codes in Oklahoma.

Where does Ottawa Company Rwd #6 get its water?

The primary water source is groundwater.

Frequently Asked Questions

Is water from Ottawa Company Rwd #6 safe to drink? ▼
Ottawa Company Rwd #6 has 82 recorded violations since 2021. The B shown is a ZIP-area score, not a grade for this utility; see the violation table for what was violated.
Should I use a water filter? ▼
Given 82 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does Ottawa Company Rwd #6 serve? ▼
Ottawa Company Rwd #6 serves approximately 560 people with drinking water across 3 ZIP codes.
What is Ottawa Company Rwd #6's water source? ▼
Ottawa Company Rwd #6 draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Ottawa Company Rwd #6's water? ▼
The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero. This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Ottawa Company Rwd #6? ▼
The ZIP codes mapped to Ottawa Company Rwd #6 have a median household income of $49,668 (Census ZIP-code estimate). In CEJST data, 100% of census tracts in the counties mapped to this area are designated disadvantaged (average across mapped ZIP codes), which may indicate greater vulnerability to environmental health risks.
Where does Ottawa Company Rwd #6 get its water? ▼
Ottawa Company Rwd #6's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. The available violation history and environmental indicators place this system in the elevated review category; they do not measure current source contamination.

How to cite this page

APA ZipCheckup. (n.d.). Ottawa Company Rwd #6 (OK): 1 Health Violation. https://zipcheckup.com/water-system/ok2005859/
BibTeX
@misc{zipcheckup-water-system-ok2005859,
  author = {{ZipCheckup}},
  title  = {{Ottawa Company Rwd #6 (OK): 1 Health Violation}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok2005859/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report →

3

Contact your utility

Ottawa Company Rwd #6 (EPA ID: OK2005859) - request the latest Consumer Confidence Report or ask about specific contaminants.

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