City of Castroville
EPA ID: TX1630005 · 3,913 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for City of Castroville (TX1630005): no EPA violations recorded in the last five years. Across every monitored period in the past five years, City of Castroville reported no EPA violations for its service population of 3,913.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Castroville Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The City of Castroville serves a community with a median household income of $102,724 and an estimated 79,383 residents across its service area.
💧 Where Does Your Water Come From?
City of Castroville's water is pumped from underground aquifers. 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
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 3 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
City of Castroville (EPA ID: TX1630005) is a community water system in Texas that serves approximately 3,913 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
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: 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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Castroville (TX1630005) on EPA.gov.
Frequently Asked Questions
Is City of Castroville water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for City of Castroville in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does City of Castroville serve?
City of Castroville serves approximately 3,913 people across 3 ZIP codes in Texas.
Where does City of Castroville get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Castroville Water Quality Report, TX. https://zipcheckup.com/water-system/tx1630005/
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author = {{ZipCheckup}},
title = {{City of Castroville Water Quality Report, TX}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx1630005/}
}