Llano Grande Lake Park East
EPA ID: TX1080034 · 1,300 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Llano Grande Lake Park East (TX1080034): 7 violations recorded with unresolved status in the SDWIS data used. In EPA records, Llano Grande Lake Park East has 7 violations listed as unresolved, with the utility supplying water to approximately 1,300 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Llano Grande Lake Park East Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Llano Grande Lake Park East have a median household income of $39,890 and about 33,596 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 41% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 90% 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?
Llano Grande Lake Park East'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.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 5 detections recorded.
Comparable Water Systems
Similar-sized systems in Texas
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
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.
System Overview
Llano Grande Lake Park East (EPA ID: TX1080034) is a community water system in Texas that serves approximately 1,300 people from surface water sources.
This system serves ZIP code 78570 in Mercedes.
Violation History
Status breakdown for accepted records with record years 2021-2026: 20 resolved, 0 archived, 0 addressed, and 7 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 1, 2026 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| September 29, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Consumer Confidence Rule | Non-health-based | Unaddressed (current) |
| April 1, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| September 29, 2024 | Lead and Copper Rule | Non-health-based | Resolved |
| March 31, 2024 | Lead and Copper Rule | Non-health-based | Resolved |
| September 29, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| August 17, 2023 | Public Notice | Non-health-based | Resolved |
| August 13, 2023 | Public Notice | Non-health-based | Resolved |
| July 1, 2023 | Consumer Confidence Rule | Non-health-based | Resolved |
| May 11, 2023 | Public Notice | Non-health-based | Resolved |
| April 1, 2023 | Nitrite | Non-health-based | Resolved |
| January 1, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| January 1, 2023 | Nitrite | Non-health-based | Resolved |
| January 1, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| December 4, 2022 | Public Notice | Non-health-based | Resolved |
| October 1, 2022 | Lead and Copper Rule | Health-based | Unaddressed (current) |
| July 1, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
| July 1, 2022 | Consumer Confidence Rule | Non-health-based | Resolved |
| June 11, 2022 | Public Notice | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Public Notice | Treatment Technique, Monitoring & Reporting | 15 | Yes |
| Public Notice | Other (notice or report rule) | 6 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 4 | No |
| Nitrite | Monitoring & Reporting | 2 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0031 mg/L | No | 2025-12-31 |
The accepted LCR snapshot contains 1 reported copper action-level exceedance record for this PWSID. The source does not provide a verified copper level for publication.
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.
- 78570 - Mercedes
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Llano Grande Lake Park East (TX1080034) on EPA.gov.
Frequently Asked Questions
Is Llano Grande Lake Park East water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 3 current health-based noncompliance records for Llano Grande Lake Park East. 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 Llano Grande Lake Park East serve?
Llano Grande Lake Park East serves approximately 1,300 people across 1 ZIP code in Texas.
Where does Llano Grande Lake Park East get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Llano Grande Lake Park East (TX): 3 Health Violations. https://zipcheckup.com/water-system/tx1080034/
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author = {{ZipCheckup}},
title = {{Llano Grande Lake Park East (TX): 3 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx1080034/}
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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
Llano Grande Lake Park East (EPA ID: TX1080034) - request the latest Consumer Confidence Report or ask about specific contaminants.