SAN MARTIN COUNTY WATER DISTRICT

California - Community Water System - PWSID: CA4300542

System Information

PWSID	CA4300542
System Name	SAN MARTIN COUNTY WATER DISTRICT
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	09
Serves School	No
Wholesaler	No
First Reported	Mar 22, 1979
Last Reported	Mar 20, 2026

Location & Contact

State	California
City	SAN MARTIN
ZIP Code	95046-0120
Address	P.O. BOX 120
Organization	FOREST, PETER
Phone	408-683-4101

Population & Service

Population Served	627
Service Connections	190

Drinking Water Violations (70)

This water system has 70 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Oct 1, 2019	-	MR	No	No	-	TT	-	Resolved	Oct 20, 2020	-
Oct 1, 2019	-	MR	No	No	-	TT	-	Resolved	Oct 20, 2020	-
Jul 1, 1999	-	MR	No	No	-	TT	-	Resolved	Aug 3, 2000	-
Jul 1, 1999	-	MR	No	No	-	TT	-	Resolved	Aug 3, 2000	-
Jul 1, 1999	-	MR	No	No	-	TT	-	Resolved	Aug 3, 2000	-
Jul 1, 1999	-	MR	No	No	-	TT	-	Resolved	Aug 3, 2000	-
Jul 1, 1999	-	MR	No	No	-	TT	-	Resolved	Aug 3, 2000	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1999	Dec 31, 1999	MR	No	Yes	-	-	-	Resolved	Dec 31, 1999	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1998	Dec 31, 1998	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1998	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	0.005 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	1 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	0.005 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	10 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	0.005 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	0.005 mg/L	-	Resolved	Dec 31, 1996	-
Jan 1, 1996	Dec 31, 1996	MR	No	Yes	-	-	-	Resolved	Dec 31, 1996	-

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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