GRAYLING HIGH SCHOOL

Michigan — Non-Transient Non-Community — PWSID: MI2006420

System Information

PWSID	MI2006420
System Name	GRAYLING HIGH SCHOOL
System Type	Non-Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	05
Serves School	Yes
Wholesaler	No
First Reported	Jan 18, 1984
Last Reported	Jun 5, 2025

Location & Contact

State	Michigan
City	GRAYLING
ZIP Code	49738
Address	1135 N OLD 27
Organization	CALKIN, BRENT
Phone	989-344-3757

Population & Service

Population Served	530
Service Connections	1

Drinking Water Violations (127)

This water system has 127 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
Jan 1, 2025	Mar 31, 2025	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Archived	Mar 31, 2025	Revised Total Coliform Rule
Apr 1, 2020	Jun 30, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jun 30, 2020	Revised Total Coliform Rule
Jan 1, 2020	Dec 31, 2022	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2022	Arsenic Rule
Jan 1, 2020	Dec 31, 2022	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2022	Arsenic Rule
Jan 1, 2020	Dec 31, 2022	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2022	Arsenic Rule
Jan 1, 2020	Dec 31, 2022	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2022	Arsenic Rule
Apr 1, 2019	Jun 30, 2019	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jun 30, 2019	Revised Total Coliform Rule
Jan 1, 2018	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	May 30, 2019	Lead and Copper Rule
Jan 1, 2010	—	Lead and Copper Rule	MR	No	No	—	TT	—	Unaddressed	—	Lead and Copper Rule
Jan 1, 2010	—	Lead and Copper Rule	MR	No	No	—	TT	—	Unaddressed	—	Lead and Copper Rule
Jan 1, 2010	—	Lead and Copper Rule	MR	No	No	—	TT	—	Unaddressed	—	Lead and Copper Rule
May 1, 2006	May 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	May 31, 2006	Total Coliform Rule
May 1, 2006	May 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	May 31, 2006	Total Coliform Rule
May 1, 2006	May 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	May 31, 2006	Total Coliform Rule
May 1, 2006	May 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	May 31, 2006	Total Coliform Rule
Jan 1, 2004	Dec 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2004	Total Coliform Rule
Jan 1, 2004	Dec 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2004	Total Coliform Rule
Jan 1, 2004	Dec 31, 2004	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2004	Nitrate Rule
Jan 1, 2004	Dec 31, 2004	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2004	Nitrate Rule
Jan 1, 2003	Dec 31, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2003	Total Coliform Rule
Jan 1, 2003	Dec 31, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2003	Total Coliform Rule
Jan 1, 2003	Dec 31, 2003	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2003	Nitrate Rule
Jan 1, 2003	Dec 31, 2003	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2003	Nitrate Rule
Jan 1, 2002	Dec 31, 2004	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 1999	Dec 31, 2004	Endrin	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 1999	Dec 31, 2004	OXAMYL	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 1999	Dec 31, 2004	Endrin	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 1999	Dec 31, 2004	1,1,2-Trichloroethane	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 2004	1,1,2-Trichloroethane	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 2004	Xylenes, Total	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 2004	Xylenes, Total	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 2004	Carbon tetrachloride	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 2004	Tetrachloroethylene	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals

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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