CITY REPORT TX HEALTH VIOLATIONS: 25

Mount Calm, TX - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 3
County Radon Potential (Low)
$114K
Median Home Value
$600
Est. Remediation (0.5% of home value)

Key Facts for Mount Calm Residents

  • Your city's water systems recorded 89 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0026 mg/L.
  • Homes built before 1986: 52% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 14.22.

Mount Calm's Water Providers

3 systems shown for Mount Calm, TX, from 5 on the federal list.

Overview

We track home safety data for 1 ZIP code in Mount Calm, Texas (population ~1,178), covering 5 community water systems serving approximately 11,202 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 25 health-based violations appear in the available health breakdown.

Water Sources

Mount Calm water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0026 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Public Notice Rule Reporting 44 1
Arsenic Inorganic 42 1
Lead and Copper Rule Treatment Technique 22 1
Consumer Confidence Rule Reporting 20 1
Lead and Copper Rule Revisions Treatment Technique 16 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
76673 — 89 25 Post Oak Special Utility District

All ZIP Codes in Mount Calm

  • 76673 - 89 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Mount Calm Community Health Snapshot

10.3%
Asthma (US: 9.8%)
14.2%
Diabetes (US: 10.4%)
17.8%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.3% ↑
Diabetes 14.2% ↑
Mental Health 17.8% ↑

Vertical line = national average. ■ Above national · ■ Below national

What's in Mount Calm's Water?

Public Notice Rule 44 violations
Reporting
Arsenic 42 violations
Inorganic · EPA regulatory level for the contaminant named above: 0.01 mg/L
Long-term exposure above the MCL: skin damage, circulatory problems, increased cancer risk
Lead and Copper Rule 22 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Mount Calm Infrastructure Age

1985
Median Build Year
52%
Built Before 1986
27%
Built Before 1970
Copper
Likely Pipe Material

With 52% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Pre-1986 homes make up a large part of Mount Calm's housing; median build year 1985.

1985
Median Year Built
52%
Pre-1986 (lead solder era; lead paint banned 1978)
27%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (27%) 1970–1986 (25%) Post-1986 (48%)

Over half of homes in Mount Calm were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Mount Calm

Compared with typical property prices, the remediation estimate for Mount Calm is small in percentage terms - at or under one percent.

Median Home Value
$113,700
Est. Remediation
$600
Remediation as % of home value 0.5%

Estimated remediation costs in Mount Calm can be compared with local home values. The $300–$1,500 estimated range can be set against the median property value; actual costs vary by home. Home values are 50% below the Texas average.

Mount Calm: Lead Risk & Vulnerable Populations

52%
Homes Built Before 1986
0.0026
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Frequently Asked Questions

How many violations are on record for water systems serving Mount Calm?
EPA records list 89 EPA violations, including 25 health-based violations for Mount Calm water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Mount Calm water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Mount Calm is 0.0026 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Mount Calm?
Our records map 5 water systems to 1 ZIP code in Mount Calm. The related population figure in our data is approximately 1,178 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Mount Calm?
Estimated remediation cost per household in Mount Calm: $600; modeled range $300 to $1,500. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Mount Calm, TX - Home Safety Score unavailable. https://zipcheckup.com/cities/tx/mount-calm/
BibTeX
@misc{zipcheckup-cities-tx-mount-calm,
  author = {{ZipCheckup}},
  title  = {{Mount Calm, TX - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/tx/mount-calm/}
}

Page version: October 2026.

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