Current Health-Based Noncompliance TX 11 HEALTH-BASED VIOLATIONS ON RECORD

City of Mason

EPA ID: TX1600001 ยท 2,228 people served ยท 1 ZIP code

ZipCheckup's reading of EPA records for City of Mason (TX1600001): 3 violations recorded with unresolved status in the SDWIS data used. In the federal compliance data used here, City of Mason has 3 violations listed as open; the utility serves approximately 2,228 people.

Data: EPA SDWIS

2,228
People Served
1
ZIP Code Served
16
Violations (since 2021)
Groundwater
Water Source
0.0015 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 2
County Radon Potential ยท Moderate
6
Contaminants Flagged
$272K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for City of Mason Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$75,048
Median Household Income
3,525
Population of ZIP Codes Served (Census)
50%
Disadvantaged Population
70th
Poverty Percentile
90th
Energy Burden Percentile
67%
Pre-1986 Housing

The ZIP codes associated with City of Mason have a median household income of $75,048 and about 3,525 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 67% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 50% 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.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

City of Mason'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
0th
Wastewater Discharge Proximity
10th
Superfund Site Proximity

Infrastructure Risk

49 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
21 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 70% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Texas

Harris County Fwsd 6
2,229 people
1 violation
22 violations
Tcw Supply
2,220 people
5 violations
1 violation
City of Whitney
2,237 people
1 violation

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 Property Value Decline $13,575

5% of median home value (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$14,290
10 years
$28,580
20 years
$57,160

Compare: Estimated remediation cost is $600 (one-time) vs. $28,580 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

City of Mason (EPA ID: TX1600001) is a community water system in Texas that serves approximately 2,228 people from groundwater sources.

This system serves ZIP code 76856 in Mason.

Violation History

1 current health-based noncompliance record in the accepted 2026Q2 snapshot.

Status breakdown for accepted records with record years 2021-2026: 13 resolved, 0 archived, 0 addressed, and 3 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
April 11, 2026 Revised Total Coliform Rule Health-based Unaddressed (current)
February 12, 2026 E. COLI Non-health-based Unaddressed (current)
December 30, 2025 Lead and Copper Rule Non-health-based Unaddressed (current)
July 1, 2025 Consumer Confidence Rule Non-health-based Resolved
November 27, 2024 E. COLI Non-health-based Resolved
October 1, 2022 Gross Alpha Health-based Resolved
July 1, 2022 Lead and Copper Rule Non-health-based Resolved
April 1, 2022 Gross Alpha Health-based Resolved
January 1, 2022 Gross Alpha Health-based Resolved
October 1, 2021 Combined Radium (-226 and -228) Health-based Resolved
July 1, 2021 Combined Radium (-226 and -228) Health-based Resolved
July 1, 2021 Gross Alpha Health-based Resolved
April 1, 2021 Combined Radium (-226 and -228) Health-based Resolved
April 1, 2021 Gross Alpha Health-based Resolved
January 1, 2021 Combined Radium (-226 and -228) Health-based Resolved
January 1, 2021 Gross Alpha Health-based Resolved

Contaminants Detected

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

Contaminant Category Violations Health-Based
Gross Alpha MCL Violation 6 Yes
Combined Radium (-226 and -228) MCL Violation 4 Yes
E. COLI Monitoring & Reporting 2 No
Lead and Copper Rule Monitoring & Reporting 2 No
Consumer Confidence Rule Other (notice or report rule) 1 No
Revised Total Coliform Rule Treatment Technique 1 Yes

Health Risk Details

Gross Alpha Particle Activity (EPA limit: pCi/L)

Increased cancer risk from radioactive particles At-risk groups: long-term residents in areas with uranium or radium-rich geology, people on private wells in western US.

Treatment options (verify a product is certified to reduce this contaminant): reverse osmosis, ion exchange, lime softening. Find the right filter โ†’

Lead & Copper

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

Lead Level Exceeds Action Level Sample Date
0.0015 mg/L No 2025-12-31

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

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 TX 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 City of Mason (TX1600001) on EPA.gov.

Frequently Asked Questions

Is City of Mason water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for City of Mason. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.

How many people does City of Mason serve?

City of Mason serves approximately 2,228 people across 1 ZIP code in Texas.

Where does City of Mason get its water?

The primary water source is groundwater.

Frequently Asked Questions

Should I use a water filter? ▼
Given 16 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 City of Mason serve? ▼
City of Mason serves approximately 2,228 people with drinking water across 1 ZIP code.
What is City of Mason's water source? ▼
City of Mason draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in City of Mason's water? ▼
The most recent 90th-percentile lead result on record is 0.0015 mg/L (sample period ending 2025-12-31). 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 City of Mason? ▼
The ZIP codes mapped to City of Mason have a median household income of $75,048 (Census ZIP-code estimate). In CEJST data, 50% 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 City of Mason get its water? ▼
City of Mason'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.). City of Mason (TX): 11 Health Violations. https://zipcheckup.com/water-system/tx1600001/
BibTeX
@misc{zipcheckup-water-system-tx1600001,
  author = {{ZipCheckup}},
  title  = {{City of Mason (TX): 11 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/tx1600001/}
}

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 โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

City of Mason (EPA ID: TX1600001) - request the latest Consumer Confidence Report or ask about specific contaminants.

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