Rough Rock Community High School BIA

Arizona — Non-Transient Non-Community — PWSID: NN0435212

System Information

PWSID	NN0435212
System Name	Rough Rock Community High School BIA
System Type	Non-Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Federal
EPA Region	09
Serves School	Yes
Wholesaler	No
First Reported	Feb 2, 1984
Last Reported	Dec 31, 2025

Location & Contact

State	Arizona
City	Chinle
ZIP Code	86503
Address	PO Box 680
Organization	BIA Rough Rock Community School
Phone	9287283795

Population & Service

Population Served	350
Service Connections	27

Drinking Water Violations (132)

This water system has 132 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	Sep 30, 2025	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Archived	Sep 30, 2025	Arsenic Rule
Apr 1, 2025	—	Revised Total Coliform Rule	RPT	No	No	—	—	—	Unaddressed	—	Revised Total Coliform Rule
Apr 1, 2025	Jun 30, 2025	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Archived	Jun 30, 2025	Arsenic Rule
Mar 1, 2025	—	Revised Total Coliform Rule	RPT	No	No	—	—	—	Resolved	May 6, 2025	Revised Total Coliform Rule
Jan 1, 2025	Mar 31, 2025	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Archived	Mar 31, 2025	Arsenic Rule
Oct 1, 2024	Dec 31, 2024	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 12, 2024	Arsenic Rule
Jul 1, 2024	Sep 30, 2024	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2024	Arsenic Rule
Jan 1, 2024	Dec 31, 2024	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 12, 2024	Nitrate Rule
Jan 1, 2024	Dec 31, 2024	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 12, 2024	Nitrate Rule
Jan 1, 2024	Mar 31, 2024	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2024	Arsenic Rule
Oct 1, 2023	—	Revised Total Coliform Rule	RPT	No	No	—	—	—	Resolved	Nov 30, 2023	Revised Total Coliform Rule
Jan 1, 2023	Mar 31, 2023	Arsenic	MCL	Yes	No	.0122 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2023	Arsenic Rule
Jan 1, 2023	Mar 31, 2023	Arsenic	MCL	Yes	No	.0122 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2023	Arsenic Rule
Jan 1, 2023	—	Public Notice	Other	No	No	—	—	—	Resolved	Jan 3, 2023	Public Notice Rule and Revised PN Rule
Jan 1, 2023	—	Public Notice	Other	No	No	—	—	—	Resolved	Jan 3, 2023	Public Notice Rule and Revised PN Rule
Oct 1, 2022	—	Public Notice	Other	No	No	—	—	—	Unaddressed	—	Public Notice Rule and Revised PN Rule
Oct 1, 2022	Dec 31, 2022	Arsenic	MCL	Yes	No	.015 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2022	Arsenic Rule
Oct 1, 2022	Dec 31, 2022	Arsenic	MCL	Yes	No	.015 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2022	Arsenic Rule
Oct 1, 2022	—	Revised Total Coliform Rule	RPT	No	No	—	—	—	Resolved	Nov 17, 2022	Revised Total Coliform Rule
Apr 1, 2022	Jun 30, 2022	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2022	Arsenic Rule
Jan 1, 2022	Mar 31, 2022	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2022	Arsenic Rule
Nov 1, 2020	Nov 30, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Nov 30, 2020	Revised Total Coliform Rule
Oct 1, 2020	Dec 31, 2020	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2020	Arsenic Rule
Oct 1, 2020	Dec 31, 2020	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2020	Arsenic Rule
Oct 1, 2020	Dec 31, 2020	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2020	Arsenic Rule
May 1, 2020	—	Revised Total Coliform Rule	RPT	No	No	—	—	—	Resolved	Jun 19, 2020	Revised Total Coliform Rule
Jan 1, 2020	Mar 31, 2020	Arsenic	MCL	Yes	No	.0174 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2020	Arsenic Rule
Jan 1, 2020	Mar 31, 2020	Arsenic	MCL	Yes	No	.0174 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2020	Arsenic Rule
Jan 1, 2020	Mar 31, 2020	Arsenic	MCL	Yes	No	.0174 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2020	Arsenic Rule
Jan 1, 2020	—	Public Notice	Other	No	No	—	—	—	Unaddressed	—	Public Notice Rule and Revised PN Rule
Oct 1, 2019	Dec 31, 2019	Arsenic	MCL	Yes	No	.0339 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2019	Arsenic Rule
Oct 1, 2019	Dec 31, 2019	Arsenic	MCL	Yes	No	.0339 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2019	Arsenic Rule
Oct 1, 2019	Dec 31, 2019	Arsenic	MCL	Yes	No	.0339 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2019	Arsenic Rule
Oct 1, 2019	—	Public Notice	Other	No	No	—	—	—	Unaddressed	—	Public Notice Rule and Revised PN Rule
Jul 1, 2019	—	Public Notice	Other	No	No	—	—	—	Resolved	Jun 21, 2019	Public Notice Rule and Revised PN Rule
Jul 1, 2019	—	Public Notice	Other	No	No	—	—	—	Resolved	Jun 21, 2019	Public Notice Rule and Revised PN Rule
Jul 1, 2019	Sep 30, 2019	Arsenic	MCL	Yes	No	.033 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2019	Arsenic Rule
Jul 1, 2019	Sep 30, 2019	Arsenic	MCL	Yes	No	.033 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2019	Arsenic Rule
Jul 1, 2019	Sep 30, 2019	Arsenic	MCL	Yes	No	.033 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2019	Arsenic Rule
Apr 1, 2019	Jun 30, 2019	Arsenic	MCL	Yes	No	.032 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2019	Arsenic Rule
Apr 1, 2019	Jun 30, 2019	Arsenic	MCL	Yes	No	.032 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2019	Arsenic Rule
Apr 1, 2019	Jun 30, 2019	Arsenic	MCL	Yes	No	.032 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2019	Arsenic Rule
Apr 1, 2017	Jun 30, 2017	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2017	Arsenic Rule
Apr 1, 2017	Jun 30, 2017	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2017	Arsenic Rule
Apr 1, 2017	Jun 30, 2017	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2017	Arsenic Rule
Apr 1, 2017	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 4, 2017	Public Notice Rule and Revised PN Rule
Aug 1, 2016	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Resolved	Aug 9, 2016	Revised Total Coliform Rule
Aug 1, 2016	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Resolved	Aug 9, 2016	Revised Total Coliform Rule
Jul 1, 2016	Sep 30, 2016	Arsenic	MCL	Yes	No	.0134 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2016	Arsenic Rule
Jul 1, 2016	Sep 30, 2016	Arsenic	MCL	Yes	No	.0134 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2016	Arsenic 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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