RIVERDALE SCHOOL DISTRICT #100

Illinois — Non-Transient Non-Community — PWSID: IL3113985

System Information

PWSIDIL3113985
System NameRIVERDALE SCHOOL DISTRICT #100
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeMixed
EPA Region05
Serves SchoolYes
WholesalerNo
First ReportedDec 16, 1985
Last ReportedMar 12, 2026

Location & Contact

StateIllinois
CityPORT BYRON
ZIP Code61275
Address9624-256TH ST N
OrganizationJACOBS, RON
Phone304-523-3184

Population & Service

Population Served1,340
Service Connections5

Drinking Water Violations (365)

This water system has 365 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
Dec 31, 2025 MR No No TT Unaddressed
Oct 1, 2025 RPT No No Unaddressed
Oct 1, 2025 RPT No No Unaddressed
Oct 1, 2025 RPT No No Unaddressed
Sep 1, 2025 Sep 30, 2025 MON No Yes Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MR No Yes 4.0 mg/L Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MR No Yes 4.0 mg/L Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MON No Yes Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MON No Yes Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MON No Yes Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MR No Yes 4.0 mg/L Resolved Sep 23, 2025
Sep 1, 2025 Sep 30, 2025 MR No Yes 4.0 mg/L Resolved Sep 23, 2025
Aug 1, 2025 Aug 31, 2025 MON No Yes Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MON No Yes Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MR No Yes 4.0 mg/L Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MON No Yes Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MR No Yes 4.0 mg/L Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MON No Yes Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MR No Yes 4.0 mg/L Resolved Aug 31, 2025
Aug 1, 2025 Aug 31, 2025 MR No Yes 4.0 mg/L Resolved Aug 31, 2025
Jun 7, 2025 Other No No Resolved Aug 8, 2025
Jun 7, 2025 Other No No Resolved Aug 8, 2025
Jun 6, 2025 Other No No Unaddressed
Apr 5, 2025 Other No No Resolved May 29, 2025
Apr 5, 2025 Other No No Resolved May 29, 2025
Dec 21, 2024 Other No No Unaddressed
Dec 4, 2024 Other No No Unaddressed
Nov 1, 2024 Other No No Unaddressed
Oct 27, 2024 TT Yes No Resolved Jan 29, 2025
Oct 27, 2024 TT Yes No Resolved Jan 29, 2025
Oct 17, 2024 RPT No No Resolved May 29, 2025
Oct 17, 2024 RPT No No Resolved May 29, 2025
Oct 17, 2024 RPT No No Resolved May 29, 2025
Oct 17, 2024 TT Yes No Resolved May 29, 2025
Oct 17, 2024 RPT No No Resolved May 29, 2025
Oct 17, 2024 TT Yes No Resolved May 29, 2025
Oct 17, 2024 TT Yes No Resolved May 29, 2025
Oct 17, 2024 TT Yes No Resolved May 29, 2025
Oct 12, 2024 MR No Yes Resolved May 27, 2025
Oct 12, 2024 MR No Yes Resolved May 27, 2025
Oct 12, 2024 MR No Yes Resolved May 27, 2025
Oct 12, 2024 MR No Yes Resolved May 27, 2025
Oct 1, 2024 MR No No TT Resolved Aug 19, 2025
Oct 1, 2024 MR No No TT Resolved Aug 19, 2025
Oct 1, 2024 MR No No TT Resolved Aug 19, 2025
May 23, 2024 Other No No Unaddressed
May 22, 2024 Other No No Unaddressed
Apr 1, 2024 Jun 30, 2024 MR No Yes 4.0 mg/L Resolved May 22, 2024
Apr 1, 2024 Apr 30, 2024 MON No Yes Resolved Apr 30, 2024
Apr 1, 2024 Jun 30, 2024 MR No Yes 4.0 mg/L Resolved May 22, 2024

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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