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States → Michigan

GRAYLING HIGH SCHOOL

PWS ID: MI2006420 · GRAYLING, Michigan 49738

Population Served
530
Total Violations
127
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Crawford
School/Daycare
Yes
MCL Violations
4
Monitoring Violations
121
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 6 2018
Nitrate MR 4 2004
Coliform (TCR) MR 4 2004
Coliform (TCR) MCL 4 2006
Arsenic MR 4 2020
Revised Total Coliform Rule MON 3 2025
Barium MR 2 2002
Cadmium MR 2 2002
Mercury MR 2 2002
Selenium MR 2 2002
Beryllium, Total MR 2 2002
Thallium, Total MR 2 2002
BHC-GAMMA MR 2 1999
Methoxychlor MR 2 1999
Toxaphene MR 2 1999
Simazine MR 2 1999
Dinoseb MR 2 1999
Hexachlorocyclopentadiene MR 2 1999
Atrazine MR 2 1999
LASSO MR 2 1999
Heptachlor epoxide MR 2 1999
2,4,5-TP MR 2 1999
HEXACHLOROBENZENE MR 2 1999
Pentachlorophenol MR 2 1999
1,2,4-Trichlorobenzene MR 2 1999
cis-1,2-Dichloroethylene MR 2 1999
DICHLOROMETHANE MR 2 1999
o-Dichlorobenzene MR 2 1999
p-Dichlorobenzene MR 2 1999
Vinyl chloride MR 2 1999
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.