Environmental Review Notice for Water System Improvements

ENVIRONMENTAL REVIEW

                                WATER SYSTEM NAME                  SUNAPEE WATER & SEWER COMMISSION

                                PROJECT TITLE                                   WATER SYSTEM PLANT IMPROVMENTS-UV SYSTEM PROJECT

                                ADDRESS                                             HARBOR HILL ROAD, SUNAPEE

                                WATER SYSTEM PWS#                   2271010

INTRODUCTION

The Town of Sunapee has applied for funds through the State of New Hampshire Department of

Environmental Services Drinking Water State Revolving Fund (DWSRF), in accordance with Env-Dw 1100.

PROJECT DESCRIPTION

The Sunapee Water & Sewer Commission serves water to approximately 1,680 people through 507 service connections. The system currently operates a surface water treatment system, with source water influent from Lake Sunapee. For the past few years, the water system has experienced elevated levels of disinfection byproducts (DBPs) in the water distribution system.

This project includes ultraviolet light (UV) disinfection improvements to mitigate disinfection byproducts in accordance with Administrative Order by Consent No. 19-031 WD.  This project includes installation of a UV system and associated controls.  Improvements will also be made to filter effluent control valves for better process control.  This project will take place within the footprint of the existing building. The project will result in improved water quality.

Whereas the project constitutes only a minor project where all work will take place on existing facilities where no new disruption of the environment will occur, such as correction of leakage, replacement of pipes in existing rights of way, or replacement or addition of equipment or small new structures on an existing site, a Categorical Exclusion (CE) is proposed.

PUBLIC REVIEW

The Sunapee Water and Sewer Commission voted to authorize funding in the amount of $400,000 for this project on March 10, 2020. A public notice will be published by the Sunapee Water & Sewer Commission and a 30-day public comment period held in accordance with Env-DW 1100.  Comments will be accepted through January 1, 2021; the public comment period will end 1/1/2021.

The full document is available at, and comments may be addressed to the following locations: 

Sunapee Water & Sewer Commission, Attn: Holly Leonard, Office Manager,  23 Edgemont Road, PO Box 347, Sunapee, NH 03782; or NHDES- Drinking Water & Groundwater Bureau Attn:  Emily Nichols, Environmental Review Coordinator, PO Box 95, 29 Hazen Dr, Concord NH 03302-0095 or by email at: Emily.Nichols@des.nh.gov.