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SONOMA STATE UNIVERSITY

California — Community Water System — PWSID: CA4910027

System Information

PWSIDCA4910027
System NameSONOMA STATE UNIVERSITY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeState
EPA Region09
Serves SchoolYes
WholesalerNo
First ReportedMar 31, 1986
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityROHNERT PARK
ZIP Code94928
Address1801 East Cotati Avenue
OrganizationBRUNETTA, MISSY
Phone707-664-3408

Population & Service

Population Served10,986
Service Connections93

Drinking Water Violations (16)

This water system has 16 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
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Aug 27, 2018 Lead and Copper Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Oct 1, 2004 Oct 31, 2004 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2004 Total Coliform Rule
Oct 1, 2004 Oct 31, 2004 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2004 Total Coliform Rule
May 1, 2002 May 31, 2002 Coliform (TCR) MCL Yes No — 5% of samples — Resolved May 31, 2002 Total Coliform Rule
May 1, 2002 May 31, 2002 Coliform (TCR) MCL Yes No — 5% of samples — Resolved May 31, 2002 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Nov 1, 1999 Nov 30, 1999 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1999 Total Coliform Rule
Nov 1, 1999 Nov 30, 1999 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1999 Total Coliform Rule
Mar 1, 1998 Mar 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 1998 Total Coliform Rule
Jan 1, 1998 Jan 31, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 1998 Total Coliform Rule
Aug 1, 1989 Aug 31, 1989 Other No No — — — Archived Aug 31, 1989 Miscellaneous Other Rules
Feb 1, 1989 Feb 28, 1989 Other No No — — — Archived Feb 28, 1989 Miscellaneous Other Rules
Jun 1, 1987 Jun 30, 1987 Other No No — — — Archived Jun 30, 1987 Miscellaneous Other Rules

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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