Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Safety Ratings 11,700+ NHTSA crash test ratings Investigations 5,300+ NHTSA defect investigations Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports Brand History Cross-category recall lookup by company
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents State Safety Dashboards Safety grades for all 50 U.S. states ZIP Safety Report Check any 5-digit ZIP across 9 datasets
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases
Blog

Vehicle Safety

Vehicle Recalls320,000+ NHTSA safety recalls Browse VehiclesEvery make, model and year Complaints2.1M+ consumer safety complaints TSBs4.7M technical service bulletins VIN LookupDecode any vehicle VIN instantly OBD Codes12,000+ diagnostic trouble codes Fuel EconomyEPA MPG data for all vehicles Safety Ratings11,700+ NHTSA crash test ratings Investigations5,300+ NHTSA defect investigations StatisticsRecall trends & safety analysis Compare VehiclesTwo vehicles side by side

Consumer Safety

Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

Infrastructure

Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

Public Health

Nursing Homes14,700 CMS rated facilities Environmental80,000+ hazardous sites & releases BlogGuides, news & safety insights

Colusa Southern System

California — Community Water System — PWSID: 090605047

System Information

PWSID090605047
System NameColusa Southern System
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedFeb 2, 1984
Last ReportedMar 25, 2026

Location & Contact

StateCalifornia
CityColusa
ZIP Code95932-4018
Address3730 Highway 45
OrganizationCachil Dehe Band of Wintun Indians
Phone5304588231

Population & Service

Population Served3,474
Service Connections31

Drinking Water Violations (395)

This water system has 395 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
Jul 1, 2005 — Other No No — — — Resolved Aug 18, 2006 —
Jul 1, 2004 — Other No No — — — Resolved Aug 18, 2006 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.05 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.060 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.007 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.4 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.5 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.04 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.007 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 10 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.7 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.04 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.075 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 10 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.001 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.006 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.080 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.001 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.003 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — — — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.02 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2004 Dec 31, 2004 MR No Yes — 0.7 mg/L — Resolved Dec 31, 2004 —

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.

Browse All Water Systems Water Safety Stats Water Safety Home
Browse All Water Systems Water Systems in California