RIO WSC

Texas — Community Water System — PWSID: TX2140016

System Information

PWSIDTX2140016
System NameRIO WSC
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 14, 1980
Last ReportedMar 31, 2026

Location & Contact

StateTexas
CityRIO GRANDE CITY
ZIP Code78582-6229
Address42 N SUNTEX RD
OrganizationGUERRA, OSCAR
Phone956-487-2085

Population & Service

Population Served6,939
Service Connections2,313

Drinking Water Violations (169)

This water system has 169 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Nov 1, 2025 Nov 30, 2025 MR No Yes Archived Nov 30, 2025
Oct 17, 2024 RPT No No Resolved Apr 22, 2025
Oct 17, 2024 TT Yes No Resolved Apr 22, 2025
Oct 17, 2024 TT Yes No Resolved Apr 22, 2025
Oct 17, 2024 RPT No No Resolved Apr 22, 2025
Oct 17, 2024 TT Yes No Resolved Apr 22, 2025
Oct 17, 2024 RPT No No Resolved Apr 22, 2025
Oct 17, 2024 RPT No No Resolved Apr 22, 2025
Oct 17, 2024 TT Yes No Resolved Apr 22, 2025
Jul 1, 2023 Other No No Resolved Oct 19, 2023
Jul 1, 2023 Other No No Resolved Oct 19, 2023
Jul 1, 2022 Other No No Resolved Oct 19, 2023
Jul 1, 2022 Other No No Resolved Oct 19, 2023
Jul 1, 2022 Other No No Resolved Oct 19, 2023
Dec 30, 2021 MR No No TT Resolved Jun 1, 2023
Dec 30, 2021 MR No No TT Resolved Jun 1, 2023
Dec 23, 2021 Other No No Unaddressed
Nov 1, 2021 Other No No Unaddressed
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.060 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.060 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Other No No Unaddressed
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.080 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.080 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.080 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 10 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.060 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 10 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.080 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 10 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 10 mg/L Resolved Dec 31, 2021
Oct 1, 2021 Dec 31, 2021 MR No Yes 0.060 mg/L Resolved Dec 31, 2021
Sep 1, 2021 Other No No Unaddressed
Jul 1, 2021 Other No No Resolved Oct 19, 2023
Jul 1, 2021 Other No No Resolved Oct 19, 2023
Oct 1, 2020 Oct 31, 2020 MON No No Resolved Oct 31, 2020
Oct 1, 2020 MR No No TT Resolved Oct 4, 2021
Oct 1, 2020 MR No No TT Resolved Oct 4, 2021
Oct 1, 2020 MR No No TT Resolved Oct 4, 2021
Oct 1, 2020 Oct 31, 2020 MON No No Resolved Oct 31, 2020
Oct 1, 2020 Oct 31, 2020 MON No No Resolved Oct 31, 2020
Sep 1, 2020 Sep 30, 2020 MON No No Resolved Sep 30, 2020
Sep 1, 2020 Sep 30, 2020 MON No No Resolved Sep 30, 2020
Sep 1, 2020 Sep 30, 2020 MON No No Resolved Sep 30, 2020
Aug 1, 2020 Aug 31, 2020 MON No No Resolved Aug 31, 2020
Aug 1, 2020 Aug 31, 2020 MON No No Resolved Aug 31, 2020
Aug 1, 2020 Aug 31, 2020 MON No No Resolved Aug 31, 2020
Jul 1, 2020 Other No No Resolved Oct 19, 2023
Jul 1, 2020 Jul 31, 2020 MON No No Resolved Jul 31, 2020
Jul 1, 2020 Jul 31, 2020 MON No No Resolved Jul 31, 2020
Jul 1, 2020 Jul 31, 2020 MON No No Resolved Jul 31, 2020

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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