Tolland County, Connecticut — public water systems

297 active public water systems serve Tolland County, reporting 60.1K people served.

Dataset updated July 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

297

Population served

60.1K

Community systems

Groundwater share

97.6%

Water systems in Tolland County

Active public water systems in Tolland County, Connecticut
#	Water system	County	Population served	Type	Source
1	University of Connecticut - Main Campus	Tolland	27,199	Community	Purchased surface water
2	Ctwc - Hebron Center Division	Tolland	1,927	Community	Groundwater
3	Coventry High & Nathan Hale Schools	Tolland	1,252	Non-transient non-community	Groundwater
4	Tolland Water Department	Tolland	1,251	Community	Groundwater
5	Ctwc - Amston Lake Division	Tolland	910	Community	Groundwater
6	Horace Porter School	Tolland	797	Non-transient non-community	Groundwater
7	Bolton Center School (K-8)	Tolland	756	Non-transient non-community	Groundwater
8	Ctwc - Uconn South Eagleville Div.	Tolland	750	Community	Purchased surface water
9	Mansfield Middle School	Tolland	715	Non-transient non-community	Groundwater
10	Ctwc - Coventry Hills Div	Tolland	700	Community	Groundwater
11	Mansfield Elementary School	Tolland	688	Non-transient non-community	Groundwater
12	George Hersey Robertson School	Tolland	573	Non-transient non-community	Groundwater
13	Coventry Grammar School	Tolland	558	Non-transient non-community	Groundwater
14	Ctwc - Northern Region-Lakewood	Tolland	532	Community	Groundwater
15	Ctwc - South Coventry System	Tolland	501	Community	Groundwater
16	Woodhaven Apartments	Tolland	489	Community	Groundwater
17	Ctwc - Northern Region-Lakeview Terrace	Tolland	472	Community	Groundwater
18	Hebron Elementary School	Tolland	450	Non-transient non-community	Groundwater
19	Vernon Village Inc..	Tolland	430	Community	Groundwater
20	Stafford Hollow Water Association	Tolland	429	Community	Groundwater
21	Gilead Hill School	Tolland	391	Non-transient non-community	Groundwater
22	Andover Elementary School	Tolland	381	Non-transient non-community	Groundwater
23	Hazardville - Rye Hill System	Tolland	352	Community	Purchased surface water
24	Willington Senior Center & Housing	Tolland	327	Community	Groundwater
25	Knollwood Apartments	Tolland	312	Community	Groundwater
26	Ctwc - General Water Division	Tolland	306	Community	Groundwater
27	Bolton High School	Tolland	304	Non-transient non-community	Groundwater
28	Justice Education Center Camp Inspire	Tolland	300	Transient non-community	Groundwater
29	Walden Apartments	Tolland	276	Community	Groundwater
30	Crystal Lake School	Tolland	275	Non-transient non-community	Groundwater
31	Johnson Memorial Hospital, Inc.	Tolland	250	Community	Groundwater
32	Ctwc - Uconn Hunting Lodge Div.	Tolland	234	Community	Purchased surface water
33	Ctwc - Pilgrim Hills Division	Tolland	229	Community	Groundwater
34	Ctwc - London Park Division	Tolland	221	Community	Groundwater
35	Mansfield Library Buchanan Center	Tolland	217	Transient non-community	Groundwater
36	Woodland Summit Community Water Assn	Tolland	216	Community	Groundwater
37	Ivy Woods	Tolland	207	Community	Groundwater
38	Tolland Water Dept - Torry Road	Tolland	204	Community	Purchased surface water
39	1657 Boston Turnpike - Coventry	Tolland	203	Transient non-community	Groundwater
40	Fed Ex Ground	Tolland	200	Non-transient non-community	Groundwater
41	Carriage House Apartments	Tolland	196	Community	Groundwater
42	Cornerstone of Columbia	Tolland	193	Transient non-community	Groundwater
43	Ctwc - Northern Reg-Llynwood System	Tolland	192	Community	Groundwater
44	White Oak Condominiums	Tolland	192	Community	Groundwater
45	Renwood Apartments	Tolland	190	Community	Groundwater
46	Discovery Zone Learning Cntr Columbia	Tolland	189	Non-transient non-community	Groundwater
47	Ctwc - Riversedge Division	Tolland	179	Community	Purchased groundwater
48	Orchard Acres Association	Tolland	176	Community	Groundwater
49	Baxter Farms Community Water Assoc	Tolland	175	Community	Groundwater
50	Ctwc - Crystal Springs Div.	Tolland	169	Community	Groundwater