NORTH SAN YSIDRO MDWCA

New Mexico — Community Water System — PWSID: NM3518225

System Information

PWSID	NM3518225
System Name	NORTH SAN YSIDRO MDWCA
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	06
Serves School	No
Wholesaler	No
First Reported	Mar 12, 1980
Last Reported	Dec 3, 2025

Location & Contact

State	New Mexico
City	ILFELD
ZIP Code	87538
Address	—
Organization	ROMERO, KATHY
Phone	505-470-6742

Population & Service

Population Served	133
Service Connections	45

Drinking Water Violations (195)

This water system has 195 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, 2025	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Oct 1, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Jul 1, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Oct 1, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Jul 1, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Dec 30, 2022	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jan 3, 2023	Ground Water Rule
Dec 30, 2022	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jan 3, 2023	Ground Water Rule
Dec 30, 2022	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jan 3, 2023	Ground Water Rule
Oct 1, 2021	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 27, 2023	Lead and Copper Rule
Oct 1, 2021	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 27, 2023	Lead and Copper Rule
Oct 1, 2021	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 27, 2023	Lead and Copper Rule
Jul 1, 2021	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 30, 2021	Consumer Confidence Rule
Jul 1, 2021	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 30, 2021	Consumer Confidence Rule
Oct 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 30, 2021	Consumer Confidence Rule
Oct 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 30, 2021	Consumer Confidence Rule
Jun 15, 2020	—	Public Notice	Other	No	No	—	—	—	Resolved	Jun 24, 2020	Public Notice Rule and Revised PN Rule
Apr 15, 2020	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Apr 15, 2020	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Apr 15, 2020	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Apr 15, 2020	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Jan 19, 2020	—	Groundwater Rule	Other	No	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Jan 19, 2020	—	Groundwater Rule	Other	No	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Jan 19, 2020	—	Groundwater Rule	Other	No	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Jan 19, 2020	—	Groundwater Rule	Other	No	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Jan 19, 2020	—	Groundwater Rule	Other	No	No	—	—	—	Resolved	Jun 24, 2020	Ground Water Rule
Jul 1, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jun 30, 2020	Consumer Confidence Rule
Jul 1, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jun 30, 2020	Consumer Confidence Rule
Nov 22, 2018	—	Public Notice	Other	No	No	—	—	—	Resolved	Mar 28, 2019	Public Notice Rule and Revised PN Rule
Nov 22, 2018	—	Public Notice	Other	No	No	—	—	—	Resolved	Mar 28, 2019	Public Notice Rule and Revised PN Rule
Jul 11, 2018	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 26, 2018	Public Notice Rule and Revised PN Rule
Mar 19, 2018	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 17, 2023	Public Notice Rule and Revised PN Rule
Mar 19, 2018	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 17, 2023	Public Notice Rule and Revised PN Rule
Feb 10, 2018	—	Public Notice	Other	No	No	—	—	—	Resolved	Feb 9, 2019	Public Notice Rule and Revised PN Rule
Oct 1, 2017	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 8, 2018	Lead and Copper Rule
Oct 1, 2017	Oct 31, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Oct 31, 2017	Revised Total Coliform Rule
Oct 1, 2017	Oct 31, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Oct 31, 2017	Revised Total Coliform Rule
Oct 1, 2017	Oct 31, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Oct 31, 2017	Revised Total Coliform Rule
Oct 1, 2017	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 21, 2024	Consumer Confidence Rule
Oct 1, 2017	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 8, 2018	Lead and Copper Rule
Oct 1, 2017	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 8, 2018	Lead and Copper Rule
Oct 1, 2017	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 8, 2018	Lead and Copper Rule
Oct 1, 2017	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 8, 2018	Lead and Copper Rule
Oct 1, 2017	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 21, 2024	Consumer Confidence Rule
Jul 1, 2017	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 2, 2018	Consumer Confidence Rule
Jul 1, 2017	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 2, 2018	Consumer Confidence Rule
Jul 1, 2017	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 2, 2018	Consumer Confidence Rule
Feb 11, 2017	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Dec 27, 2018	Ground Water Rule
Feb 11, 2017	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Dec 28, 2018	Ground Water Rule
Feb 11, 2017	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Dec 27, 2018	Ground Water Rule
Feb 11, 2017	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Dec 27, 2018	Ground Water Rule

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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