Llano Grande Lake Park East
EPA ID: TX1080034 · 1,300 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Llano Grande Lake Park East (TX1080034): 7 unresolved EPA violations on record. While corrective steps may be in progress, Llano Grande Lake Park East currently shows 7 EPA violations unresolved - serving a population of approximately 1,300.
Data: EPA SDWIS
Service Area Map
Coverage area for Llano Grande Lake Park East Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Llano Grande Lake Park East serves a community with a median household income of $39,890 and an estimated 33,596 residents across its service area. Approximately 41% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 90% 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?
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
Detected Contaminants
How Llano Grande Lake Park East compares to EPA limits
What This Means For You
Stage 1 DBP Rule at 15 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 6 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Copper at 2 mg/L exceeds the EPA maximum of 1.3 mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 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 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| September 29, 2025 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
| April 1, 2025 | Stage 1 DBP Rule | Non-health-based | Resolved |
| September 29, 2024 | Stage 1 DBP Rule | Non-health-based | Resolved |
| March 31, 2024 | Stage 1 DBP Rule | Non-health-based | Resolved |
| September 29, 2023 | Stage 1 DBP Rule | Non-health-based | Resolved |
| August 17, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| August 13, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| July 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| May 11, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| April 1, 2023 | Copper | Non-health-based | Resolved |
| January 1, 2023 | Stage 1 DBP Rule | Non-health-based | Resolved |
| January 1, 2023 | Copper | Non-health-based | Resolved |
| January 1, 2023 | Stage 1 DBP Rule | Non-health-based | Resolved |
| December 4, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
| October 1, 2022 | Stage 1 DBP Rule | Health-based | Unaddressed (current) |
| July 1, 2022 | Stage 1 DBP Rule | Non-health-based | Resolved |
| July 1, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| June 11, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Failure | 15 | Yes |
| Lead and Copper Rule | Treatment Failure | 6 | No |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Copper | Inorganic | 2 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00306 mg/L | No | N/A |
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: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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 the full compliance record 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.