San Ildefonso Pueblo

New Mexico — Community Water System — PWSID: 063500116

System Information

PWSID	063500116
System Name	San Ildefonso Pueblo
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Native American
EPA Region	06
Serves School	No
Wholesaler	No
First Reported	Mar 1, 1979
Last Reported	Dec 12, 2025

Location & Contact

State	New Mexico
City	SANTA FE
ZIP Code	87506
Address	02 Tunyo Po
Organization	—
Phone	505-455-2273

Population & Service

Population Served	608
Service Connections	257

Drinking Water Violations (47)

This water system has 47 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 20, 2019	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Mar 11, 2022	Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 20, 2019	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Mar 11, 2022	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Apr 9, 2019	Ground Water Rule
Jul 1, 2018	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Apr 9, 2019	Ground Water Rule
Jul 1, 2018	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Apr 9, 2019	Ground Water Rule
Jul 1, 2018	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Apr 9, 2019	Ground Water Rule
Jan 1, 2015	Dec 31, 2015	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2015	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015	Dec 31, 2015	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2015	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015	Dec 31, 2015	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2015	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015	Dec 31, 2015	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2015	Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 17, 2013	—	Public Notice	Other	No	No	—	—	—	Resolved	Jan 31, 2014	Public Notice Rule and Revised PN Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Mar 6, 2014	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Mar 6, 2014	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Mar 6, 2014	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Mar 31, 2012	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Feb 25, 2013	Ground Water Rule
Jan 1, 2008	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Feb 25, 2013	Lead and Copper Rule
Jan 1, 2008	Jan 31, 2008	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 2008	Total Coliform Rule
Jan 1, 2008	Jan 31, 2008	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 2008	Total Coliform Rule
Jan 1, 2008	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Feb 25, 2013	Lead and Copper Rule
Jul 1, 2005	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Feb 25, 2013	Consumer Confidence Rule
Jul 1, 2005	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Feb 25, 2013	Consumer Confidence Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Feb 25, 2013	Consumer Confidence Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Feb 25, 2013	Consumer Confidence Rule
Aug 1, 2001	Aug 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2001	Total Coliform Rule
Aug 1, 2001	Aug 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2001	Total Coliform Rule
May 1, 2001	May 31, 2001	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	May 31, 2001	Total Coliform Rule
May 1, 2001	May 31, 2001	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	May 31, 2001	Total Coliform Rule
Oct 1, 2000	Oct 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Oct 31, 2000	Total Coliform Rule
Jul 1, 2000	Dec 4, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Dec 4, 2000	Consumer Confidence Rule
Jul 1, 2000	Dec 4, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Dec 4, 2000	Consumer Confidence Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Nov 1, 1999	Nov 30, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Nov 30, 1999	Total Coliform Rule
Oct 19, 1999	Dec 4, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Dec 4, 2000	Consumer Confidence Rule
Oct 19, 1999	Dec 4, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Dec 4, 2000	Consumer Confidence Rule
Oct 19, 1999	Dec 4, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Dec 4, 2000	Consumer Confidence Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Oct 31, 1999	Total Coliform Rule
Aug 1, 1991	Aug 31, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Aug 31, 1991	Total Coliform Rule
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—

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 New Mexico