Water distribution companies

DPU jurisdiction over water companies

A water corporation or company is: "every person, partnership, association or corporation, other than a municipal corporation, and other than a landlord supplying his tenant, engaged in the distribution and sale of water in the Commonwealth through its pipes or mains" per G.L. c. 165, Section 1.

The DPU regulates privately-owned water companies only.

The DPU does not regulate:

• City and town-owned water systems, because they are municipal corporations per G.L. c. 165, Section 1. The city or town-owned water system addresses any disputes from a customer.
• Self-governing water and fire districts created by special acts of the General Court, unless specified in the district's enabling act. For example, some special acts authorize DPU to resolve a price disagreement between two municipalities. These districts do file their rates with DPU for informational purposes per G.L. c. 165, Section 2A.
• Homeowner associations providing water service, unless they supply water to non-members. In those cases, DPU limits its oversight to only those non-member customers.

List of DPU-regulated water companies

Name	Address	Phone	Service Area	Customers	Note
Andrews Farm Water Company	36 Andrews Farm Road, Boxford, MA 01921	[phone]	Boxford (part)	52	Address is that of pumphouse - company has no dedicated office.
Agawam Springs Water Company	158 Tihonet Road, Wareham, MA 02571	[phone]	Plymouth (part)	3	Company is new system planned to serve 1,100 customers at RedBrook community; website is for Redbrook.
Aquaria Water Company	170 Aquaria Drive, P.O. Box 1000, North Dighton, MA 02764	[phone]	Brockton (wholesale)	1	Company provides wholesale water service to City of Brockton via desalinization plant.
Aquarion Water Company of Massachusetts	24 Providence Street, Millbury, MA 01527	[phone]	Dover (part), Millbury, Oxford, Plymouth (part), Sheffield	490 (Sheffield); 1,530 (Dover & Plymouth); 4,000 (Millbury);  2,700 (Oxford)	Note: Company is owned by Eversource Energy.
Ashmere Water Supply	P.O. Box 843, Hinsdale, MA 01235-0843	[phone]	Hinsdale (part)	27
Butterworth Water Company	300 Salisbury Street, Worcester, MA 01609	[phone]	Adams (part)	0	Company is primarily engaged in sale of water for bottled water operations.
Colonial Water Company					Acquired by Aquarion Water Company in 2021.
Century Mill, Inc.	63 Atlantic Avenue, Boston, MA 02110	[phone]	Bolton (part)	43
East Northfield Water Company	PO Box 152, Northfield, MA 01360	[phone]	Northfield (part)	339	Company is owned by Northfield Mount Hermon School.
Granville Center Water Company	29 Locust Drive, Bedford, NY 10506		Granville (part)	34
Housatonic Water Works	80 Maple Avenue, Great Barrington, MA 01230	[phone]	Great Barrington (part), Stockbridge (part), West Stockbridge (part)	858
Hutchinson Water LLC	P.O. Box 320705, West Roxbury, MA 02132		Cheshire (part)	123	Company serves Hutchinson Acres development.
Kings Grant Water Company	839 Newport Avenue, S. Attleboro, MA 02703	[phone]	North Attleboro (part)	149	Company serves Kings Grant Estates development.
Monterey Water Company	P.O. Box 65, Monterey, MA 01245		Monterey	72	Company operates as a cooperative - the only non-member customers are the Town of Monterey and school district, so Department continues to exercise jurisdiction over the Company with respect to these customers.
Mountain Water Systems					Acquired by Aquarion Water Company in 2021.
Pinehills Water Company	33 Summerhouse Drive, Plymouth, MA 02360	[phone]	Plymouth (part)	1,844	Company serves Pinehills community; website is for Pinehills.
Plymouth Water Company	27 Northwest Drive, Plainville, CT 06062	[phone]	Plymouth (part)	821	Company serves Ponds of Plymouth development, and is wholly-owned subsidiary of New England Service Company, of Plainville, Connecticut.
Whitinsville Water Company	44 Lake Street, Whitinsville, MA 01588	[phone]	Northbridge (part), Sutton (part), Northbridge Water Department (c. 2,200 connections)	2,253