Manchester Water Works (MWW) has scheduled a conversion of the disinfectant chloramine used in our water treatment process to chlorine to begin September 2nd and continue through the week of October 14th (six weeks). During this time, you may notice a slight change in the taste and smell of your drinking water that has no harmful effects.
Periodically MWW switches the disinfectant from chloramine to chlorine for the maintenance of our water distribution system. Early on during the conversion, MWW will also conduct selective hydrant flushing to enhance water quality. This procedure is a common practice for many U.S. public water systems that use chloramine as a disinfectant and the practice is approved by the Environmental Protection Agency (EPA) which regulates the safe use of chlorine and chloramine.
MWW routinely collects and tests water samples to monitor for chloramine and chlorine levels throughout the distribution system and will continue to do so during this period. Should you notice a change in the taste or smell of chlorine, MWW recommends:
- Run the cold water tap for two minutes. Run it for five to 10 minutes when water is not used for several hours.
- Refrigerate cold tap water in an open pitcher. Within a few hours, the chlorine taste and odor should dissipate.
- There are available filters that may reduce the chlorine taste and smell. MWW recommends using those that are either installed onto your faucet tap or using a pitcher-style filter. The filter should meet NSF certified safety standards and you should replace the filter as recommended by the manufacturer.
Individuals and business owners who take special precautions to remove chloramine from tap water, such as dialysis centers, medical facilities and aquatic pet owners, should continue to take the same precautions during the temporary switch to chlorine. Most methods for removing chloramine from tap water are effective in removing chlorine. Individuals with special health concerns should consult a health care provider on the use of tap water.
Should you have any concerns, please contact the MWW Laboratory directly at (603) 792-2855 (Monday-Friday, 8:00 a.m. - 4:00 p.m.)
Feasibility Study for Raising the Level of Lake Massabesic by One Foot Ongoing
June 10, 2025
The State of New Hampshire Department of Environmental Service (NHDES) is working closely with the Manchester Water Works and the Turner Group to evaluate the feasibility of raising the dam spillway of Lake Massabesic by one foot.
The purpose of this project is to provide the ability for the lake to store more drinking water for potential future use by New Hampshire communities impacted by drinking water contamination.
Impacts to private property owners and infrastructure are currently being assessed to determine what modifications may be necessary to address potential flooding impacts.
Questions about this project may be directed to watershed@manchesternh.gov.
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ENVIRONMENTAL REVIEW
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FUNDING RECIPIENT: Manchester Water Works
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PROJECT TITLE: Noyes Road Water Main
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PROJECT ADDRESS: Noyes Rd and Josephine Dr, Londonderry, NH
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WATER SYSTEM PWS#/PROJECT #: 1471010
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Manchester Water Works (MWW) has applied for funds through the State of New Hampshire Drinking Water and Groundwater Trust Fund (DWGTF) to finance a water infrastructure improvements project in Londonderry, NH.
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This project includes installation of 1,700 linear feet of 30-inch water main to connect the existing Londonderry water storage tanks (14 Josephine Dr) to the existing MWW water system. The water main route will include traversing cross country from the existing water storage tanks, through Lot 15-35C (56A/B Noyes Rd), then extending to the existing 16-inch water main in the public right of way on Noyes Rd and connecting to the existing distribution system at the intersection with Rockingham Rd (NH Route 28). Construction will additionally include relocation of the existing septic tank and leach field of 56A/B Noyes Rd.
All required permits and approvals will be obtained prior to construction.
Whereas this project constitutes only a minor project, and no significant environmental impacts are anticipated, a Finding of No Significant Impact (FONSI) is proposed.
PUBLIC REVIEW
This public notice is published in accordance with Env-Dw 1300 and a 30-day comment period will be held. Comments will be accepted through Sunday, March 3, 2024, when the public notice will end.
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The full document is available at www.des.nh.gov under “Resource Center, Public Notices”, and search for “Manchester”. Comments may be addressed to the following locations: Manchester Water Works, Attn: Jeffrey Provost, 100 International Dr, Portsmouth NH, 03801 provostj@wseinc.com; or NHDES Drinking Water and Groundwater Trust Fund Attn: Jennifer Brady, Environmental Review Coordinator, PO Box 95, 29 Hazen Dr, Concord NH 03302-0095, or by email at: envreview@des.nh.gov.
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Manchester Water Works Introduces
Our Cost-Saving
Service Line Protection Plan
Did you know that you own the water service line from your property line into your home? Many people are surprised when they learn that they own and are responsible for the repair and maintenance of the water service line from your property line into your home. We know you have received at least two solicitations this year alone proposing to protect you against expenses due to such a leak.
MWW is prepared to handle the leak in your water service.… including: Expenses related to repair work such as costs to shut off your water service; hiring a contractor to replace or repair your leaking water service line; patching your driveway and re-sodding your lawn and turning your service back on assuring a tight repair.
Leave it to us… Make just one call and have Manchester Water Works take care of it. Save yourself the inconvenience and potentially thousands of dollars in repairs by enrolling today in the Manchester Water Works Service Line Protection Plan!
Homeowner’s Insurance isn’t the answer… Most homeowner insurance policies do not cover the cost of repairing or replacing water service lines and, even if it did, there’s typically a large deductible that must be paid first. Now, there is a simple way to avoid costly repairs to your water service line. Enroll in the Manchester Water Works Service Line Protection Plan and gain peace of mind knowing that if you suddenly have a leak, Manchester Water Works will take care of everything.
Guaranteed for an the introductory price of $75… Enroll in the Service Line Protection Plan and Manchester Water Works will take care of the repair and replacement of your leaking water service connection from the property line up to your shut off valve in the basement. If you have a leak from your water service, just call us, and we’ll handle it – for the low cost of just $75 annually. Our authorized service person will be dispatched to your home to take care of the problem.
Peace of Mind... It’s easy to see why the Service Line Protection Plan is such a great value. Enroll Today! Enrolling in the Service Line Protection Plan is easy. You can pay the $75 annual fee by check, money order, or add it to your regular water bill. To enroll, call our customer service number at 1-603-624-6494 or on-line Enroll today, and you’ll never have to worry about expensive water line repairs again.
Eligibility… To be eligible for the Service Line Protection coverage, you must own or have a written legal responsibility and authority to provide maintenance for the water service line (and associated parts) to your residential dwelling (up to 2 unit multi-family). Customers on private lines are not eligible. The service line can be no greater than one (1) inch in diameter and must conform to the design standards of MWW’s Rules and Regulations. MWW reserves the right to deny plan coverage for any reason.
See terms and conditions