PlainWater
States → Connecticut

THE GRUMMAN HILL MONTESSORI ASSOCIATION

PWS ID: CT1615113 · WILTON, Connecticut 06897

Population Served
259
Total Violations
116
Health-Based Violations
26
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Fairfield
School/Daycare
Yes
MCL Violations
10
Monitoring Violations
80
Treatment Tech Violations
16

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 40 2022
Lead and Copper Rule TT 16 2016
Coliform (TCR) MCL 10 2007
Public Notice Other 4 2010
DICHLOROMETHANE MR 2 2010
o-Dichlorobenzene MR 2 2010
Vinyl chloride MR 2 2010
1,1-Dichloroethylene MR 2 2010
Carbon tetrachloride MR 2 2010
Tetrachloroethylene MR 2 2010
Benzene MR 2 2010
Toluene MR 2 2010
Ethylbenzene MR 2 2010
Styrene MR 2 2010
cis-1,2-Dichloroethylene MR 2 2010
1,2-Dichloropropane MR 2 2010
1,1,1-Trichloroethane MR 2 2010
trans-1,2-Dichloroethylene MR 2 2010
CHLOROBENZENE MR 2 2010
1,2-Dichloroethane MR 2 2010
Trichloroethylene MR 2 2010
p-Dichlorobenzene MR 2 2010
1,2,4-Trichlorobenzene MR 2 2010
1,1,2-Trichloroethane MR 2 2010
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.