Rock Hill Water Supply Corporation
EPA ID: TX1830014 · 1,062 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Rock Hill Water Supply Corporation (TX1830014): 4 health-based violations recorded since 2021. Per the federal file, all 5 violations logged for Rock Hill Water Supply Corporation carry a resolved status, and around 1,062 people get water from this system.
Data: EPA SDWIS
Service Area Map
Coverage area for Rock Hill Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Rock Hill Water Supply Corporation have a median household income of $81,875 and about 7,317 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 42% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Rock Hill Water Supply Corporation'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
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
Rock Hill Water Supply Corporation (EPA ID: TX1830014) is a community water system in Texas that serves approximately 1,062 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 4 archived, 0 addressed, and 0 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 |
|---|---|---|---|
| January 1, 2026 | TTHM | Health-based | Archived |
| October 1, 2025 | TTHM | Health-based | Archived |
| July 1, 2025 | TTHM | Health-based | Archived |
| May 31, 2025 | Public Notice | Non-health-based | Resolved |
| April 1, 2025 | TTHM | Health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| TTHM | MCL Violation | 4 | Yes |
| Public Notice | Other (notice or report rule) | 1 | No |
Health Risk Details
Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)
Increased risk of cancer
Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | 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.
Radon Risk in Service Area
2 of 2 ZIP records with known zones are 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.
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 available EPA compliance records for Rock Hill Water Supply Corporation (TX1830014) on EPA.gov.
Frequently Asked Questions
Is Rock Hill Water Supply Corporation water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Rock Hill Water Supply Corporation; its 5 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Rock Hill Water Supply Corporation serve?
Rock Hill Water Supply Corporation serves approximately 1,062 people across 2 ZIP codes in Texas.
Where does Rock Hill Water Supply Corporation get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Rock Hill Water Supply Corporation (TX): 4 Health Violations. https://zipcheckup.com/water-system/tx1830014/
@misc{zipcheckup-water-system-tx1830014,
author = {{ZipCheckup}},
title = {{Rock Hill Water Supply Corporation (TX): 4 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx1830014/}
}
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
Rock Hill Water Supply Corporation (EPA ID: TX1830014) - request the latest Consumer Confidence Report or ask about specific contaminants.