Health Violations Found OK 21 HEALTH VIOLATIONS

Avant Utilities Authority

EPA ID: OK1021305 · 361 people served · 1 ZIP code

28 open EPA findings remain on record at Avant Utilities Authority — the utility supplies approximately 361 people.

Data: EPA SDWIS Last verified: 2026-04-02

B · 70
Avg Safety Score
361
People Served
1
ZIP Code Served
43
Violations (5yr)
Surface Water
Water Source
0.0018 mg/L
Max Lead Level
Zone 3
Radon Risk · Low
6
Contaminants Flagged
$68K
Median Home Value in Service Area

Compliance Trajectory

Worsening · Risk tier: High · 95% chance of violation in next 12 months

Violations went from 9 (2024) to 6 (2025). The pattern suggests growing compliance challenges.

Service Area Map

Coverage area for Avant Utilities Authority Source: EPA SDWIS service area boundaries.

Service area boundary — Grade B

Service Area Demographics

$60,417
Median Household Income
281
Service Area Population
100%
Disadvantaged Population
70th
Poverty Percentile
70th
Energy Burden Percentile
60%
Pre-1986 Housing

The Avant Utilities Authority serves a community with a median household income of $60,417 and an estimated 281 residents across its service area. Approximately 60% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: 100% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. 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?

Surface Water

Avant Utilities Authority's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.

Elevated Risk
Source Contamination Risk
30th
Wastewater Discharge Proximity
30th
Superfund Site Proximity

About 1% of homes in Osage County, Oklahoma rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.

Infrastructure Risk

55 yr
Avg Pipe Age
Copper
Pipe Material
15 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 79% of expected lifespan used End of life

Detected Contaminants

How Avant Utilities Authority compares to EPA limits

Haloacetic Acids (HAA5) 18 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.06 mg/L
Cancer risk; reproductive & developmental effects
Total Trihalomethanes (TTHM) 6 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.08 mg/L
Bladder & rectal cancer risk; reproductive concerns

What This Means For You

Haloacetic Acids (HAA5) at 18 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.

Total Trihalomethanes (TTHM) at 6 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.

E. coli at 13 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.

Surface Water Treatment Rule at 3 mg/L exceeds the EPA maximum of mg/L.

Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.

Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.

Find a certified water filter →

Comparable Water Systems

Similar-sized systems in Oklahoma

Clarita-olney Rwd
360 people
A 4 violations
Longdale
363 people
0 violations
A 11 violations
Coal Company Rwd #5
366 people
C 24 violations
B 34 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance Water Filtration
Flood Insurance $1,200
Water Filtration $600
Total Estimated Cost $1,800

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

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

Estimated Property Value Decline $3,415

5% of median home value (EPA est.)

Estimated Cumulative Cost Per Household

5 years
$9,210
10 years
$18,420
20 years
$36,840

Compare: Estimated remediation cost is $1,800 (one-time) vs. $18,420 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

Avant Utilities Authority (EPA ID: OK1021305) is a community water system in Oklahoma that serves approximately 361 people from surface water sources.

This system serves ZIP code 74001 in Avant.

Average Home Safety Score: B (70/100)

Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.

Violation History

21 health-based violations recorded in the past 5 years. 28 remain unresolved.

Recent Violations

Date Contaminant Type Status
September 29, 2025 Haloacetic Acids (HAA5) Monitoring Unresolved
August 1, 2025 E. coli Monitoring Unresolved
July 1, 2025 Surface Water Treatment Rule Monitoring Unresolved
July 1, 2025 E. coli Monitoring Unresolved
July 1, 2025 Haloacetic Acids (HAA5) Health-based Unresolved
June 1, 2025 E. coli Monitoring Unresolved
May 1, 2025 E. coli Monitoring Unresolved
April 1, 2025 Total Trihalomethanes (TTHM) Monitoring Resolved
April 1, 2025 Haloacetic Acids (HAA5) Health-based Unresolved
January 1, 2025 E. coli Monitoring Resolved
January 1, 2025 Haloacetic Acids (HAA5) Health-based Unresolved
December 1, 2024 E. coli Monitoring Resolved
October 17, 2024 Stage 2 DBP Rule Health-based Unresolved
October 17, 2024 Stage 2 DBP Rule Monitoring Unresolved
October 1, 2024 E. coli Monitoring Resolved
October 1, 2024 Haloacetic Acids (HAA5) Health-based Unresolved
September 1, 2024 E. coli Monitoring Resolved
August 1, 2024 E. coli Monitoring Resolved
July 1, 2024 Surface Water Treatment Rule Monitoring Resolved
July 1, 2024 E. coli Monitoring Resolved

Contaminants Detected

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

Contaminant Category Violations Health-Based
Haloacetic Acids (HAA5) Disinfection Byproducts 18 Yes
E. coli Microbiological 13 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 6 Yes
Surface Water Treatment Rule Treatment Failure 3 No
Stage 2 DBP Rule Treatment Failure 2 Yes
Contaminant 1052 Other Violation 1 No

Health Risk Details

Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)

Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.

Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →

E. coli (EPA limit: Zero tolerance (any positive sample triggers immediate action))

Severe GI illness; potentially fatal kidney failure in children At-risk groups: children under 5, elderly, immunocompromised individuals, pregnant women.

Removal methods: UV disinfection (99.99%), chlorination, reverse osmosis. Find the right filter →

Total Trihalomethanes (TTHM) (EPA limit: 0.08 mg/L)

Bladder & rectal cancer risk; reproductive concerns At-risk groups: pregnant women, long-term consumers of chlorinated water, people who frequently shower in chlorinated water.

Removal methods: granular activated carbon (GAC), carbon block filter, point-of-entry aeration. Find the right filter →

Lead & Copper

EPA Lead and Copper Rule sampling data for ZIP codes served by this system:

ZIP Code Lead Level Exceeds Limit Sample Date
74001 0.0018 mg/L No N/A

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)

Need help with your water quality?

Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

ZIP Codes Served

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Avant Utilities Authority (OK1021305) on EPA.gov.

Frequently Asked Questions

Is Avant Utilities Authority water safe to drink?

Avant Utilities Authority has recorded 21 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.

How many people does Avant Utilities Authority serve?

Avant Utilities Authority serves approximately 361 people across 1 ZIP code in Oklahoma.

Where does Avant Utilities Authority get its water?

The primary water source is surface water.

Contact Your Water Utility

Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.

Phone
918-263-3205
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Address
P.O. Box 147, AVANT OK, 74001

Contact information from AVANT UTILITIES AUTHORITY Consumer Confidence Report.

ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.

Water Source & Treatment

Where this water originates and how it's treated before reaching your tap.

Source
Surface water
Drawn from rivers, lakes, or reservoirs.
Disinfectant used
Chlorine
Treatment chemicals reported
chlorine

Source: AVANT UTILITIES AUTHORITY Consumer Confidence Report.

ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.

Treatment regime

How this utility classifies its treatment process and what each reported treatment chemical does.

Treatment classification
Standard
Disinfection plus one or more treatment additives — typically corrosion control, pH adjustment, or fluoridation. Standard regime for utilities serving treated municipal water.

Treatment chemicals and what each one does

Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.

Disinfectant
Inactivates bacteria, viruses, and parasites in the treated water.
chlorine

Watershed exposure sources reported

Land-use and natural conditions identified in the utility's source-water assessment as potential contamination sources upstream of treatment.

Microbial contaminants: sewage treatment plants, septic systems, livestock operations and wildlifeInorganic contaminants: urban storm water runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farmingPesticides and herbicides: storm water run-off, agriculture, residential usersRadioactive contaminants: natural occurrence or mining activityOrganic contaminants: industrial processes, petroleum production, gas stations, urban storm water run-off, septic systems

Treatment classification and chemical list sourced from AVANT UTILITIES AUTHORITY Consumer Confidence Report.

Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.

Notable events and violations

This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.

Federal compliance violations on record

These entries are taken verbatim from the utility's CCR violations section. EPA defines four broad violation categories: Maximum Contaminant Level (MCL), Treatment Technique (TT), Monitoring & Reporting (M&R), and Public Notification (PN).

  • MCL · TOTAL HALOACETIC ACIDS (HAA5)
    2024-01-01 to 2024-03-31
    MCL, LRAA exceeded
  • MCL · TTHM
    2024-01-01 to 2024-03-31
    MCL, LRAA exceeded
  • MCL · TOTAL HALOACETIC ACIDS (HAA5)
    2024-04-01 to 2024-06-30
    MCL, LRAA exceeded
  • MCL · TTHM
    2024-04-01 to 2024-06-30
    MCL, LRAA exceeded
  • MCL · TOTAL HALOACETIC ACIDS (HAA5)
    2024-07-01 to 2024-09-30
    MCL, LRAA exceeded
  • MCL · TTHM
    2024-07-01 to 2024-09-30
    MCL, LRAA exceeded
  • MCL · TOTAL HALOACETIC ACIDS (HAA5)
    2024-10-01 to 2024-12-31
    MCL, LRAA exceeded
  • MCL · TTHM
    2024-10-01 to 2024-12-31
    MCL, LRAA exceeded
  • monitoring · SODIUM
    2024-01-01 to 2024-12-31
    MONITORING, ROUTINE MAJOR
  • monitoring · TURBIDITY
    2024-05-01 to 2024-05-31
    MONITORING, RTN/RPT MAJOR (SWTR-FILTER)
  • monitoring · TURBIDITY
    2024-07-01 to 2024-07-31
    MONITORING, RTN/RPT MAJOR (SWTR-FILTER)
  • monitoring · TURBIDITY
    2024-08-01 to 2024-08-31
    MONITORING, RTN/RPT MAJOR (SWTR-FILTER)
  • monitoring · TURBIDITY
    2024-09-01 to 2024-09-30
    MONITORING, RTN/RPT MAJOR (SWTR-FILTER)
  • monitoring · TURBIDITY
    2024-10-01 to 2024-10-31
    MONITORING, RTN/RPT MAJOR (SWTR-FILTER)
  • monitoring · TURBIDITY
    2024-12-01 to 2024-12-31
    MONITORING, RTN/RPT MAJOR (SWTR-FILTER)
  • public notice · CONSUMER CONFIDENCE RULE
    2023-10-02 to 2024-08-06
    CCR ADEQUACY/AVAILABILITY/CONTENT
  • public notice · CONSUMER CONFIDENCE RULE
    2024-07-01 to 2024-08-06
    CCR REPORT

Violations record from AVANT UTILITIES AUTHORITY Consumer Confidence Report.

Notable events from the utility's CCR

These bullet entries are the utility's own narration of operational, regulatory, or infrastructure events during the reporting period.

Notable events from AVANT UTILITIES AUTHORITY Consumer Confidence Report:
  • Violation monitoring periods for Sodium (1/1/2024-12/31/2024)
  • Violation monitoring periods for Turbidity MOR (8/1/2024-8/31/2024, 9/1/2024-9/30/2024, 10/1/2024-10/31/2024, 12/1/2024-12/31/2024, 5/1/2024-5/31/2024, 7/1/204-7/31/2024)

ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.

Frequently Asked Questions

Is water from Avant Utilities Authority safe to drink? ▼
Avant Utilities Authority earns a B safety grade with 43 violations in the past 5 years. Tap water meets EPA standards for most contaminants.
What contaminants are in Avant Utilities Authority's water? ▼
Detected contaminants include Haloacetic Acids (HAA5), Total Trihalomethanes (TTHM), E. coli, Surface Water Treatment Rule. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.
Should I use a water filter? ▼
Given 5 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.
How many people does Avant Utilities Authority serve? ▼
Avant Utilities Authority serves approximately 361 people with drinking water across 1 ZIP code.
What is Avant Utilities Authority's water source? ▼
Avant Utilities Authority draws water from surface water sources. Source type affects which contaminants are most likely to be present.
Is there lead in Avant Utilities Authority's water? ▼
The maximum detected lead level is 0.0018 mg/L. This is within EPA action level guidelines.
What is the demographic profile of Avant Utilities Authority's service area? ▼
The Avant Utilities Authority service area has a median household income of $60,417. EPA EJScreen data classifies 100% of the population as disadvantaged, which may indicate greater vulnerability to environmental health risks.
Where does Avant Utilities Authority get its water? ▼
Avant Utilities Authority's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap. Based on violation history and environmental factors, the source contamination risk is currently elevated.

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

Avant Utilities Authority (EPA ID: OK1021305) — request the latest Consumer Confidence Report or ask about specific contaminants.

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