Tap Water Texas

Utility · TX1050003

TEXAS STATE UNIVERSITY - SAN MARCOS

TEXAS STATE UNIVERSITY - SAN MARCOS (PWSID TX1050003) is an active community water system in Texas serving about 43,552 people through roughly 2,502 service connections. Its primary source is listed as groundwater (wells). Cities/areas associated with this system in EPA geographic data: San Marcos. In recent EPA records indexed here, we found 2 violation record(s), including 0 health-based and 0 still listed as addressed/unaddressed (not fully resolved). This page summarizes public EPA SDWA/ECHO data for educational purposes. It is not a substitute for your utility’s official Consumer Confidence Report or public notices.

43,552population served
2,502service connections
0health-based viol.
2viol. rows indexed
EPA ECHO facility search tipContaminant guides

System facts

  • PWSID: TX1050003
  • Type: Community water system (active)
  • Primary source: Groundwater (wells)
  • Owner type: State government
  • Wholesaler flag: No
  • Phone (EPA record): 512-245-8629
  • Address (EPA record): 601 UNIVERSITY DR, San Marcos 78666

Service geography

Cities/areas:

San Marcos

Counties: Hays

ZIPs served (EPA geo): —

Recent violation records (indexed subset)

Showing up to 40 recent violation identities (2021+ when dated), deduplicated from SDWA_VIOLATIONS_ENFORCEMENT. Status meanings come from EPA’s data dictionary (Resolved / Addressed / Unaddressed / Archived).

BeginContaminant / issueViolationCategoryHealth-basedStatusResult / MCL
07/02/2025LEAD AND COPPER RULE REVISIONSNotification, Known or Potential LSLRPTNoResolved—
—Unspecified—No——

Lead & copper rule sample highlights

Codes PB90 / CU90 in SDWIS typically represent 90th percentile lead/copper monitoring results under the Lead and Copper Rule.

Lead (PB90)

  • 12/31/2023: .0013 mg/L
  • 12/31/2022: .001 mg/L
  • 12/31/2021: .0011 mg/L
  • 12/31/2020: .0018 mg/L
  • 12/31/2019: .0021 mg/L
  • 12/31/2018: .0015 mg/L
  • 12/31/2017: .0014 mg/L
  • 12/31/2016: .0015 mg/L

Lead explainer →

Copper (CU90)

  • 12/31/2015: 1.8 mg/L
  • 12/31/2014: 1.5 mg/L
  • 12/31/1999: 1.54 mg/L
  • 12/31/1992: 1.48 mg/L
  • 09/23/1999: 1.54 mg/L
  • 06/30/2015: 1.7 mg/L
  • 06/30/1996: 1.57 mg/L
  • 06/30/1993: 1.4 mg/L

Copper explainer →

FAQs

What does PWSID TX1050003 mean?

A Public Water System Identification number uniquely identifies a system in EPA’s Safe Drinking Water Information System (SDWIS). Texas IDs start with TX.

How current is this page?

Systems and geography reflect the EPA SDWA quarterly snapshot used for this build. Violation rows are a filtered recent subset (generally 2021+) and capped for readability—always confirm on ECHO and your CCR.

What should I do if I see a health-based violation?

Read the dates and status. Contact the utility for context, check for public notices, and review the newest Consumer Confidence Report. For medical concerns, talk with a clinician—this site is educational only.

Do lead/copper samples mean my home is safe?

LCR samples are utility monitoring results (often 90th percentile summary codes like PB90/CU90), not a test of every tap. Home plumbing can differ. Consider a certified lab test if you have reason for concern.

Citations