COMMITMENTS AND CONTINGENCIES (Tables)

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Environmental Loss Contingencies by Site

The number of environmental sites and related reserves for which remediation or long-term monitoring, preliminary site work or site assessment is being performed are as follows:

	As of September 30, 2016			As of December 31, 2015
	Number of Sites	Reserve (in millions)		Number of Sites	Reserve (in millions)
Eversource	63	$	59.7	64	$	51.1
CL&P	14	4.7		14	4.6
NSTAR Electric	14	2.3		15	2.4
PSNH	12	4.3		12	4.5
WMECO	4	0.7		4	0.6

Schedule of Guarantor Obligations

The following table summarizes Eversource parent’s exposure to guarantees and indemnifications of its subsidiaries to external parties, as of September 30, 2016:  

Company	Description	Maximum  Exposure (in millions)		Expiration Dates
On behalf of subsidiaries:
Eversource Gas Transmission LLC	Access Northeast Project Capital Contributions Guaranty	$	186.5	2021
Various	Surety Bonds (1)	$	37.1	2016 - 2018
Eversource Service and Rocky River Realty Company	Lease Payments for Vehicles and Real Estate	$	9.8	2019 - 2024

(1) Surety bond expiration dates reflect termination dates, the majority of which will be renewed or extended.  Certain surety bonds contain credit ratings triggers that would require Eversource parent to post collateral in the event that the unsecured debt credit ratings of Eversource parent are downgraded.