Loma Alta Water System
EPA ID: TX2540009 · 650 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Loma Alta Water System (TX2540009): 2 violations recorded with unresolved status in the SDWIS data used. Open violations at Loma Alta Water System number 2 in the EPA compliance data, for a system that serves about 650 people. An open status describes how each violation is logged in the federal record; it is not a measurement of what comes out of any individual tap.
Data: EPA SDWIS
Service Area Map
Coverage area for Loma Alta Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Loma Alta Water System have a median household income of $43,769 and about 7,333 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 66% 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?
Loma Alta Water System'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Texas
System Overview
Loma Alta Water System (EPA ID: TX2540009) is a community water system in Texas that serves approximately 650 people from groundwater sources.
This system serves ZIP code 78839 in Crystal City.
Violation History
Status breakdown for accepted records with record years 2021-2026: 25 resolved, 0 archived, 0 addressed, and 2 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 |
|---|---|---|---|
| December 30, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| July 2, 2024 | Consumer Confidence Rule | Non-health-based | Resolved |
| March 22, 2024 | Public Notice | Non-health-based | Unaddressed (current) |
| March 22, 2024 | Public Notice | Non-health-based | Unaddressed (current) |
| July 1, 2023 | Consumer Confidence Rule | Non-health-based | Resolved |
| January 1, 2022 | 1,2,4-Trichlorobenzene | Non-health-based | Resolved |
| January 1, 2022 | cis-1,2-Dichloroethylene | Non-health-based | Resolved |
| January 1, 2022 | Xylenes, Total | Non-health-based | Resolved |
| January 1, 2022 | DICHLOROMETHANE | Non-health-based | Resolved |
| January 1, 2022 | o-Dichlorobenzene | Non-health-based | Resolved |
| January 1, 2022 | p-Dichlorobenzene | Non-health-based | Resolved |
| January 1, 2022 | Vinyl chloride | Non-health-based | Resolved |
| January 1, 2022 | 1,1-Dichloroethylene | Non-health-based | Resolved |
| January 1, 2022 | trans-1,2-Dichloroethylene | Non-health-based | Resolved |
| January 1, 2022 | 1,2-Dichloroethane | Non-health-based | Resolved |
| January 1, 2022 | 1,1,1-Trichloroethane | Non-health-based | Resolved |
| January 1, 2022 | Carbon tetrachloride | Non-health-based | Resolved |
| January 1, 2022 | 1,2-Dichloropropane | Non-health-based | Resolved |
| January 1, 2022 | Trichloroethylene | Non-health-based | Resolved |
| January 1, 2022 | 1,1,2-Trichloroethane | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Rule | Other (notice or report rule) | 2 | No |
| Public Notice | Other (notice or report rule) | 2 | No |
| Lead | Inorganic | 1 | No |
| 1,2,4-Trichlorobenzene | Monitoring & Reporting | 1 | No |
| cis-1,2-Dichloroethylene | Monitoring & Reporting | 1 | No |
| Xylenes, Total | Monitoring & Reporting | 1 | No |
| DICHLOROMETHANE | Monitoring & Reporting | 1 | No |
| o-Dichlorobenzene | Monitoring & Reporting | 1 | No |
| p-Dichlorobenzene | Monitoring & Reporting | 1 | No |
| Vinyl chloride | Monitoring & Reporting | 1 | No |
| 1,1-Dichloroethylene | Monitoring & Reporting | 1 | No |
| trans-1,2-Dichloroethylene | Monitoring & Reporting | 1 | No |
| 1,2-Dichloroethane | Monitoring & Reporting | 1 | No |
| 1,1,1-Trichloroethane | Monitoring & Reporting | 1 | No |
| Carbon tetrachloride | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0005 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.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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.
- 78839 - Crystal City
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Loma Alta Water System (TX2540009) on EPA.gov.
Frequently Asked Questions
Is Loma Alta Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Loma Alta Water System serve?
Loma Alta Water System serves approximately 650 people across 1 ZIP code in Texas.
Where does Loma Alta Water System get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Loma Alta Water System (TX): 27 EPA Violations. https://zipcheckup.com/water-system/tx2540009/
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author = {{ZipCheckup}},
title = {{Loma Alta Water System (TX): 27 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx2540009/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Loma Alta Water System (EPA ID: TX2540009) - request the latest Consumer Confidence Report or ask about specific contaminants.