Public Works & Buildings Committee

Public Works and Buildings Committee City Hall Council Chambers Meeting Minutes July 16, 2026 6:00PM MEMBERS PRESENT Chairman - Councilor Larochelle Vice Chairman-Councilor Fitzpatrick Councilor Walker Councilor Hamann Councilor Sullivan Mayor Grassie MEMBERS ABSENT Councilor Fitzpatrick (excused) OTHERS PRESENT Peter C. Nourse PE, Director of City Service ra Jenn Marsh, Deputy Director – Operations and Administration Dan Camera, GIS /Asset Managemnt Coordinator Councilor Les Horne Councilor Susan Rice, Ward 5 ft Keith Pratt, Underwood Engineer Devon Smith, Underwood Engineers D Laura McDormand, Admin. Services & Utility Billing Supervisor MINUTES Councilor Larochelle called the Public Works and Building Committee to order at 6 PM 1. Roll Call Ms. McDormand took roll call attendance. Councilor Larochelle, Councilor Walker, Councilor Hamann, Councilor Sullivan, Mayor Grassie and Councilor Horne (filling in for Councilor Fitzpatrick) were present for roll call. Councilor Fitzpatrick was not present for roll call. 2. Approval May 21, 2026, PWC Minutes Councilor Walker made a motion to accept the minutes of May 21, 2026, meeting as presented. Councilor Hamann seconded the motion. The motion passed unanimously. 3. Public Input Councilor Susan Rice attended the public input session. She inquired about the 2025 Drinking Water Consumer Confidence Report and asked where she might obtain a copy. Mr. Nourse responded that it was made available on the Genesis system in March for Public Works & Building Committee Meeting Minutes July 16, 2026  subscribers. He also stated there as a link on the March water bills where the report could be found. 4. Regional Drinking Water Interconnect Project: Update Mr. Nourse provided an overview of the drinking water Regional Interconnect Project that was last discussed at the Public Works and Buildings Committee meeting on July 18, 2024. He introduced Keith Pratt and Devon Smith from Underwood Engineers, contracted by NHDES for this study, who provided an update and a presentation on their findings (see attached). Following the presentation, discussion ensued. Mr. Nourse shared a graphic of the Rochester/Somersworth line located on Old Dover Road, highlighting a 750 ft gap between the end of the Rochester public water system, and the start of the Somersworth public water system and noted that approximately 30 Rochester homes are connected to the Somersworth consecutive system. He clarified that while Rochester conducts all state- required distribution system water testing, Somersworth is responsible for water production and treatment. Additionally, he pointed out that Somersworth does not fluoridate water, whereas Rochester does. Mr. Nourse mentioned a project that is designed 90 percent to bridge the gap between Rochester and Somersworth but request funding in the future CIP program. He explained that Rochester's meter technicians read the water meters, and billing is done at Rochester's current rates. He also discussed the water service arrangement with Lebanon, where the City of Rochester provides water to a section of Lebanon, covering about a mile and approximately 50 accounts. He stated that the water ra main in this area, installed in 1924, is in poor condition. Mr. Nourse mentioned a proposed capital improvement project in the FY 29 budget to replace the water mains in Lebanon. ft 5. 2025 Drinking Water Consumer Confidence Report Mr. Nourse indicated that each year he includes the Drinking Water Consumer Confidence Report (CCR) on the agenda for the previous year, making it available to the public. (CCR D attached). The City of Rochester provides drinking water to 25,000 residents in Rochester and Lebanon. Mr. Nourse explained that the CCR is mandated by the Safe Drinking Water Act and offers a review of the City's water quality from the past year. Mr. Nourse noted that it includes an overview of watershed characteristics, conservation efforts, treatment operations, water quality sampling, public events, capital improvement projects, and health information. Each year, the city conducts approximately 2,200 tests for 175 contaminants throughout a distribution system of 8,000 service connections and 150 miles of water main. Mr. Nourse stated that the water quality meets or exceeds all Federal and State requirements and that 730 million gallons of water are produced from both well and surface water sources. Ian Rohbacher, the Water Treatment Superintendent, received the New Hampshire Water Works Association Meritorious Achievement Award for outstanding service and leadership. Mayor Grassie expressed that during his time as a State Representative in Concord, State officials presenting before the Resources Committee, which dealt with both drinking water and sewage quality, consistently recognized Rochester as one of the best in New Hampshire. Mayor Grassie expressed gratitude to the department for their efforts in achieving this recognition. 6. Old Dover Road/Tebbetts Road Intersection Improvements Update Public Works & Building Committee Meeting Minutes July 16, 2026  Mr. Nourse provided an update regarding the Old Dover Road/Tebbetts Road Intersection, noting that this location experiences approximately 15,000 vehicles daily, with 60 accidents recorded over the past decade and 2 fatalities in the last six years. Mr. Nourse mentioned that a road safety audit conducted in 2020 led to the selection of a mini roundabout. Mr. Nourse indicated that the goals and design were discussed with the Committee, and a public information meeting took place in 2023. The project is being managed by the State's Highway Safety Improvement Program, with 90% of the costs covered by Federal highway funds. Construction is scheduled to start this Fall. He also attached a letter to the agenda, which was sent to petitioners seeking to alter the scope of the work or halt the project. This letter addresses the petitioners' questions and concerns. Additionally, Mr. Nourse informed the committee that Eversource is conducting significant clearing for the city's upcoming project and has a project in the vicinity as well that is separate from the City’s project. 7. Other Route 11 Project Councilor Hamann inquired about the potential impact of the governor's recent veto of the 10-year plan on the Route 11 project. Mr. Nourse indicated that he had not heard of any issues that may affect this funding with the Roue 11 Project and that they plan to advertise the LPA project and City project this Fall, with much of the work starting next year. Granite Ridge Groundbreaking ra Mayor Grassie announced that a groundbreaking will take place on July 30, 2026, from 3:00 to 4:30 PM. ft Sullivan Farm Drive Mr. Nourse stated that the reconstruction of Sullivan Farme Drive has been approved as D part of the Capital Improvement Project for FY2027. He mentioned that construction is planned to begin shortly after Labor Day, with the target completion set for the end of the year. Landry Lane Update Mr. Nourse provided an update to the Committee regarding Landry Lane, which is a cul- de-sac situated off Route 125. Last week, the Public Works Department enhanced the cul- de-sac by installing a new subbase and placed pavement in the area to make it wider for buses and snowplows. Brock Street Guardrail Councilor Walker inquired about the status of the cap for the guardrail on Brock Street, noting that it was missing and wanting to know when it would be repaired. Deputy Director Marsh informed him that a service request had been submitted and indicated that they are awaiting the arrival of contractor to complete the work. Ms. Marsh will follow up on this matter and provide an update. Meeting adjourned at 6:54 Public Works & Building Committee Meeting Minutes July 16, 2026  Minutes respectfully submitted by Laura McDormand, Admin. Services & Utility Billing Supervisor raft D Public Works & Building Committee Meeting Minutes July 16, 2026  Studied or Existing Regional Systems or System Interconnections SEACOAST EMERGENCY INTERCONNECTION STUDY DATE FIG. 7/16 Studied or Existing PROJECT Regional Systems or 1 99 North State Street, Concord, N.H. 03301 n/a Tel. 603.230.9898 System Interconnections  DRAFT Seacoast NH Emergency Interconnection Study Evaluation of Water Supply & Demand for Seacoast Communities Rochester Public Works Commission Meeting July 16th, 2026 Seacoast NH Emergency Interconnection Study 1 Introduction Speakers • Keith Pratt, PE – Chief Operating Officer • Devon Smith, PE – Sr. Project Manager High Level planning study for the Seacoast Commission & NHDES 20 - 50 Year Draft issued February 2026 Planning Window DRAFT Seacoast NH Emergency Interconnection Study 2  Study Area Project Goals • Regional evaluation to establish a planning tool to best utilize limited water resources in the Seacoast. • Assessing vulnerabilities of large water suppliers in NH Seacoast Region. • Consolidating smaller CWS. • Road map to provide resiliency and reliability for the next 50 years. • Update previous studies DRAFT Seacoast NH Emergency Interconnection Study 3 Section 02 Previous Work DRAFT Seacoast NH Emergency Interconnection Study 4 History – Past Studies 1988 2006 Today DRAFT Seacoast NH Emergency Interconnection Study 5  2006 Recommendation: Somersworth-Dover Interconnection DRAFT Seacoast NH Emergency Interconnection Study 6 Feb 8th 2025: ~3 Million Gallon Water Leak in Dover in less than 24 hours. Activated the Emergency Interconnection DRAFT Seacoast NH Emergency Interconnection Study 7 Section 03 Interconnection Screening Evaluation DRAFT Seacoast NH Emergency Interconnection Study 8  Study Area 2025 Seacoast New Hampshire Mutual Aid Study (Underwood Engineers) Study Area • 24 Communities • 15 Large Water Systems • 73 Wells • 8 Surface Water Treatment Facilities • 3 Existing Interconnections • 1,461 Miles of Water Main • 77 Small Community Water Systems • Hundreds of Transient Systems • 200,000+ Residents 9 DRAFT Seacoast NH Emergency Interconnection Study 9 Approach Approac Data Mutual Aid & Identify and hCollection Vulnerability Evaluate Assessment Interconnects DRAFT Seacoast NH Emergency Interconnection Study 10 Regional Supply Capacity Large Water Active Sources Supplier Aquarion 16 wells Dover 9 wells Durham & UNH 2 wells, Oyster River, & Lamprey River Epping 2 wells 3 wells, Dearborn Reservoir, Exeter Exeter River, & Skinner Springs Farmington 2 wells Newfields 5 wells Newmarket 4 wells Portsmouth 10 wells & Bellamy Reservoir Rochester Berry River Reservoir System RCC 2 wells Rollinsford 3 wells Rye 3 wells Seabrook 12 wells Somersworth Salmon Falls River Total 73 Wells, 8 Surface Water Sources Note: Sources with seasonal supply restrictions were conservatively excluded. DRAFT Seacoast NH Emergency Interconnection Study 11 2045 Supply Capacity (Firm) 6 5 33 MGD +/- 2045 Supply Capacity (mgd) 4 3 2 1 0 DRAFT Seacoast NH Emergency Interconnection Study 12  2045 Projected Water Demands Average Day Demands Summer Average Day (Peak) 8.0 7.0 17 MGD +/- (Average) 6.0 23 MGD +/- (Summer) 2045 Demands (mgd) 5.0 4.0 3.0 2.0 1.0 0.0 Note: Demands are based on source production. DRAFT Seacoast NH Emergency Interconnection Study 13  Excess Capacity for Mutual Aid 10 - 15 MGD Surplus Off Peak Excess Capacity On Peak Excess Capacity (Summer) 4.0 3.5 Excess Supply Capacity (mgd) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 DRAFT Seacoast NH Emergency Interconnection Study 14 Vulnerability Assessment Newmarket Well Repair Potential Scenarios November 2024 • Water main break • Storage tank failure • Intake collapse • Gas spill (Supply contamination) • Cyanobacteria • Cyber terrorism • Drought • Infinite possibilities! Design Scenario NH Drought Map • Largest source or water treatment facility offline (October 9th ,2025) • Future summer (peak) demands DRAFT Seacoast NH Emergency Interconnection Study 15 Section 04 Engineering Evaluation DRAFT Seacoast NH Emergency Interconnection Study 16 Interconnection Evaluation 1 Interconnection Screening 2 • Interconnections prioritized 4 based on: 3 o Emergency Needs o Excess Supply Capacity 5 o Proximity o Infrastructure 7 11 6 Links All 8 System 9 10 DRAFT Seacoast NH Emergency Interconnection Study 17 Hydraulic Evaluation 1 Regional Hydraulic Grade Line Elevation (ft AMSL) 11 4 OR 2 9 3 10 7 6 8 5 DRAFT Seacoast NH Emergency Interconnection Study 18 Low Hanging Fruit • There are a lot of opportunities, some are more complex than others, but we did identify many 2 that have great benefit, lower cost, and are easier than others. • (4) interconnects rose to top o Upgrade existing interconnect o <1,000 ft water main extension • High value projects • Links largest systems with high population 7 centers 8 • Mitigates greater emergency needs CXN# 2: Somersworth/Rochester CXN# 7: Portsmouth/Rye CXN# 8: Rye/Aquarion 10 CXN #10: Aquarion/Seabrook DRAFT Seacoast NH Emergency Interconnection Study 19 High Regional Benefits • (4) more expensive but high benefit projects o Links north and south 3 o Addresses PFAS contamination • Would likely need funding support • Greatly increase resiliency of the region 5 CXN#4: Dover/Rochester CXN# 5: Portsmouth/Dover/Durham & UNH CXN# 6: Newmarket/Newfields/Exeter/Stratham 6 CXN# 9: Aquarion/Exeter 9 DRAFT Seacoast NH Emergency Interconnection Study 20 Section 04 Rochester DRAFT Seacoast NH Emergency Interconnection Study 21 Interconnection Screening Interconnection Screening 1 0.46 - 0.92 MGD • All interconnections allow for bi-directional flow • Sized as large as practical o Available water o Distribution system 2 1.06 - 1.44 MGD o Emergency Needs • One direction may provide more than the other 1.47 - 2.88 MGD 3 • Provides flexibility for the future 5 1.51 - 3.02 MGD Portsmouth DRAFT Seacoast NH Emergency Interconnection Study 22 Rochester/Farmington CXN #1 Interconnection Concept Summary • Improvements o 7,500 LF of 16” DI Water Main o Facility ▪ Pumps & Flow Control Valve ▪ Chemical Feed ▪ Metering • Opinion of Cost o $ 10.8M +/- (2025) N DRAFT Seacoast NH Emergency Interconnection Study 23 Rochester/Somersworth Interconnection Concept CXN #2 Summary • Improvements o 750 LF of 12” DI Wain o Facility ▪ Pumps ▪ Chemical Feed ▪ Metering • Opinion of Cost o $ 4.3M +/- (2025) N DRAFT Seacoast NH Emergency Interconnection Study 24 Rochester/Dover CXN #3 Interconnection Concept Summary • Improvements o 9,400 LF of 16” DI Wain o Facility ▪ Pumps & Flow Control Valve ▪ Chemical Feed ▪ Metering • Opinion of Cost o $12.7 +/- (2025) N DRAFT Seacoast NH Emergency Interconnection Study 25 Conclusions • Increased resiliency though supply diversity • Stay engaged & start conversions with neighbors • Advance interconnection concepts • The surplus water exists • Source improvements o Future regional purveyor • Interconnection can provide high value solutions o Opportunities for cost sharing DRAFT Seacoast NH Emergency Interconnection Study 26  Contact Info: Devon Smith, PE Contact Info: Thank You! Project Manager dsmith@underwood Keith Pratt, PE Chief Operating Officer engineers.com (603) 230-9898 kpratt@underwoodengineers.com (603) 436-6192 Contact Info: Devon Smith, PE Sr. Project Manager dsmith@underwoodengineers.com (603) 230-9898 Questions? 27 27 DRAFT Seacoast NH Emergency Interconnection Study 27 Bull Pen Slides DRAFT Seacoast NH Emergency Interconnection Study 28 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 29 29 DRAFT Seacoast NH Emergency Interconnection Study 29 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 30 30 DRAFT Seacoast NH Emergency Interconnection Study 30 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 31 DRAFT 31 Seacoast NH Emergency Interconnection Study 31 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 32 32 DRAFT Seacoast NH Emergency Interconnection Study 32 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 33 33 DRAFT Seacoast NH Emergency Interconnection Study 33 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 34 34 DRAFT Seacoast NH Emergency Interconnection Study 34 Contact Info: Devon Smith, PE Project Manager dsmith@underwood engineers.com (603) 230-9898 35 DRAFT 35 Seacoast NH Emergency Interconnection Study 35  2025 Water Quality Report Rochester Consecutive Water System PWSID – NH 2001030 The City of Rochester Department of Public Works supplies drinking water to customers along a small section of Old Dover Road and adjacent streets through an independent distribution system. Water is purchased from the City of Somersworth and delivered through distribution pipelines to customers in Rochester. The City of Rochester is responsible for infrastructure maintenance, including fire hydrants and water meters, as well as certain water quality sampling. Included in this document is a summary of samples taken within the system during 2025 by the City of Rochester, as well as a copy of the 2025 Water Quality Report for the water supplied by the City of Somersworth. Together they contain information on source water quality, supply, and sampling results for that calendar year. Triennial Lead & Copper Sampling was conducted during the third quarter of 2024. An electronic copy of this document is available at: https://www.rochesternh.net/public-works/pages/water-quality-reports For questions regarding distribution system sampling or maintenance, please contact the City of Rochester Public Works Department.  Detected Our Meets Typical Source of Analyte / MCL MCLG Health Effects Water Limits? Contamination Contaminant Microbiological Contaminants E.coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Human pathogens in these wastes can cause short- E. coli Human and animal fecal term effects, such as diarrhea, 0 0 0 Y waste cramps, nausea, headaches, or Bacteria other symptoms. They may pose a greater health risk for infants, young children, the elderly, and people with severely compromised immune systems. Inorganic Contaminants Some people who use water containing chlorine well in excess of 0.70 the MRDL could experience Water additive used to irritating effects to their eyes and Chlorine (ppm) (0.28- MRDL=4 MRDLG=4 Y control microbes nose. Some people who drink water 0.96) containing chlorine well in excess of the MRDL could experience stomach discomfort. Volatile Organic Contaminants Some people who drink water containing trihalomethanes in TTHMs [Total excess of the MCL over many years By-product of drinking water trihalomethanes] 41 80ug/L N/A Y chlorination may experience problems with (ug/L)*** their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer. Some people who drink water containing haloacetic acids in HAA5 [Haloacetic By-product of drinking water 23 60ug/L N/A Y chlorination excess of the MCL over many years Acids] (ug/L)*** may have an increased risk of getting cancer. Lead and Copper (2024) 90th Action # sites Typical Source of %tile Level above Exceedance? Health Effects Contamination (Ranges) (AL) AL Copper is an essential nutrient, but some people who drink water containing copper in excess of the action level over a relatively short 0.05 Corrosion of household amount of time could experience plumbing systems; Erosion of gastronintestinal distress. Some Copper (mg/L)* (0.0012- 1.3mg/L 0 N natural deposits; Leaching people who drink water containing 0.0497) from wood preservatives copper in excess of the action level over many years could suffer liver or kidney damage. People with Wilson's Disease should consult their personal doctor. (15 ppb in more than 5%) Infants and young children are typically more vulnerable to lead in drinking Corrosion of household water than the general population. 0 Lead (ppb)** 15ppb 0 N plumbing systems; Erosion of It is possible that lead levels at your (0-4.6) natural deposits home may be higher than at other homes in the community as a result of materials used in your home’s plumbing. Lead: Lead can cause serious health effects in people of all ages, especially pregnant people, infants (both formula-fed and breastfed), and young children. Lead in drinking water is primarily from materials and parts used in service lines and in home plumbing. The Rochester Water Department is responsible for providing high quality drinking water and removing lead pipes but cannot control the variety of materials used in the plumbing in your home. Because lead levels may vary over time, lead exposure is possible even when your tap sampling results do not detect lead at one point in time. You can help protect yourself and your family by identifying and removing lead materials within your home plumbing and taking steps to reduce your family's risk. Using a filter, certified by an American National Standards Institute accredited certifier to reduce lead, is effective in reducing lead exposures. Follow the instructions provided with the filter to ensure the filter is used properly. Use only cold water for drinking, cooking, and making baby formula. Boiling water does not remove lead from water. Before using tap water for drinking, cooking, or making baby formula, flush your pipes for several minutes. You can do this by running your tap, taking a shower, doing laundry or a load of dishes. If you have a lead service line or galvanized requiring replacement service line, you may need to flush your pipes for a longer period. If you are concerned about lead in your water and wish to have your water tested, contact Ian Rohrbacher at the City of Rochester Water Department at 603-335-4291. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available at https://www.epa.gov/safewater/lead. Health Effects of Lead Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and children can have decreases in IQ and attention span. Lead exposure can lead to new learning and behavior problems or exacerbate existing learning and behavior problems. The children of women who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney or nervous system problems. Lead Service Line Inventory A service line inventory has been prepared and can be accessed by contacting the Rochester Department of Public Works in person or by phone at 603-332-4096. The baseline inventory found no unknown, galvanized-requiring- replacement, or lead service lines. As of the date of this CCR, we are classified as a lead-free system. City of Rochester, NH Consecutive Water System Serving sections of Old Dover Road PWS ID: NH2001030 Owner: Peter Nourse, PE, Director of City Services Primary Operator: Ian Rohrbacher, Superintendent Phone: 603-335-4291 (M-F 7am-3pm) Fax: 603-335-9286 Correspondence: 209 Chestnut Hill Road, Rochester, NH 03867 E-mail: ian.rohrbacher@rochesternh.gov http://www.rochesternh.gov City of Somersworth Water Treatment Facility 2026 Water Quality Report Salmon Falls River Intake 9 Wells St., Somersworth, NH 03878 Primary Operator: Gregory Kirchofer Phone: 603-692-2268 (M-F 7am-3pm) Fax: 603-692-7247 Billing Office: 603-692-9523 Correspondence: City Hall, 1 Government Way, Somersworth NH, 03878 E-mail: gkirchofer@somersworthnh.gov www.somersworthnh.gov  Your water is drawn from the Salmon Falls River. It is processed with a ballasted micro-sand clarification system and four multimedia filter beds, chlorinated, pumped into the city’s distribution system and stored in a pair of one million-gallon standpipes, ready to flow to every open tap Our raw river quality fluctuates seasonally, with daily swings in turbidity and color from 1.5NTU to over 20NTU and 40ptcu to 400ptcu; TOC from 3-14mg/l, and pH of 5.5-6.5 Finished water production averages 1.8 million gallons per day (MGD) summer usage and 1.2MGD winter usage, with a 3.2MGD capacity and typically enters the distribution system at less than 0.050NTU, 0ptcu, <2.7mg/l TOC, 7.08 pH, 1.10 mg/l free chlorine, a hardness of 7-20 mg/l (very soft), and manganese of less than .015 mg/l . The City also has a Gravel Packed Well located on Rocky Hill Rd. for emergency use. This well has a permitted capacity for up to 315 gallons per minute. The City is currently valve isolated from the well however, we do continue regular required testing and maintenance to maintain it as an active source for the City. Water is one of the world’s most precious resources, as such, the City works to maintain the integrity and conservation of our water supply. Comprehensive water quality data may be obtained from the Water Division, please call 603-692-2268 for more information or visit NH Department of Environmental Services (DES)Drinking Water and Groundwater Bureau web site at: www.des.nh.gov/water/drinking-water/public-water-systems We continually refine and advance water treatment techniques in response to new regulations and is our duty to provide safe and clean water for our customers. This requires us to perform extensive water sample collection and analysis for many different waterborne substances including: pH, conductivity, Color, Turbidity, Coliform, Cryptosporidium, Total Organic Carbon; Disinfection Byproducts (TTHM/HAA5); Lead and Copper, Iron, Manganese, Nitrites, Nitrates; Volatile/Synthetic Organic and Inorganic Chemicals (VOC/SOC/IOC); Alkalinity In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the number of certain contaminants in water provided by public water systems. The United States Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water which must provide the same protection for public health. The table in this report lists all the drinking water contaminants that were detected during the 2025 calendar year. The presence of these contaminants in the water does not necessarily indicate that the water poses a health risk UNLESS otherwise noted, the data presented in this table is from testing done January 1 through December 31, 2025. The State requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year. Some of the data, though representative of the water quality, is more than one year old. PFAS testing has been regularly completed and the City has no detections therefore, no data is listed as we are required to ONLY list detectable contaminates found. Throughout 2025 we conducted more than 1000 tests for over 175 drinking water compounds. The City of Somersworth is pleased to inform you that the quality of your water far exceeds the standards set by State and Federal regulations. No Violations. Throughout 2025 the City worked closely with Wright Pierce engineers to develop engineering plans and scope on a facility upgrade. The treatment plant is now 19 years old and is in need of equipment replacement that has reached life expectancy. This process will take approximately 1 year to engineer and 2 years to complete all construction for the upgrade. The anticipated construction will begin in the summer of 2027. In the fall of 2025 high-lift # 2 failed due to a broken shaft. This pump supply’s the water and pressure to the City for all uses. Weston and Sampson were brought in to complete the replacement of the pump side of the high-lift. The Water Division will be reaching out in 2026 to residents throughout the City requesting their participation in testing water for lead and copper. The EPA mandated rule has widened the testing criteria and in order for the City to comply, we will be looking to add new test sites. This Water Quality Report (also known as a Consumer Confidence Report) details the quality of your drinking water, where it comes from, and where you can get more information. It documents all detected primary drinking water parameters and compares them to their respective standards known as Maximum Contaminant Levels (MCLs). The City of Somersworth is committed to providing you with this information because we want you to be informed. The Somersworth Water Treatment Facility is a secure, sanitary, safe, and efficient workplace responsible for supplying potable water for consumption, and for fire protection. For more information about water quality, the treatment process, or for a tour of the facility, contact the treatment staff at 603-692-2268. We will be pleased to answer all of your questions. System Owner- David Moore City Manager Owner’s Representative- Michael Bobinsky Director of Public Works and Utilities  Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency (EPA) Safe Drinking Water Hotline 800-426-4791. The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals, and can pick up substances resulting from the presence of animals or from human activity. Contaminants that may be present in source water before we treat it include: Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife. Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban storm water runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming. Pesticides & herbicides, which may come from a variety of sources such as agriculture, residential use, and urban storm water runoff. Radioactive contaminants, which are naturally occurring. Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and also can come from gas stations, urban storm water runoff, and septic systems. Do I need to take special precautions? Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline at 1-800-426-4791. DES prepared drinking water source assessment reports for all public water systems between 2000 and 2003 in an effort to assess the vulnerability of each of the State’s public water supply sources. Included in the report is a map of each source water protection area, a list of potential and known contamination sources, and a summary of available protection options. The results of the assessment, prepared on, 10/25/2001 and 04/30/2002 are noted below. • Salmon Falls River, 2 susceptibility factors were rated high, 6 were rated medium, and 4 were rated low. • GPW (Gravel Packed Well) Rocky Hill Rd, 1 susceptibility factor was rated high, 4 were rated medium, and 7 were rated low. Note: This information is over 24 years old and includes information that was current at the time the report was completed. Therefore, some of the ratings might be different if updated to reflect current information. At the present time, DES has no plans to update this data. The complete Assessment Report is available for review at Somersworth Water Treatment Facility. For more information, call primary operator Greg Kirchofer at (603)692-2268 or visit the DES Drinking Water Source website at: https://www.des.nh.gov/climate-and-sustainability/conservation-mitigation-and-restoration/source-water-protection/assessment Lead Service Line Inventory: A service line inventory has been prepared and a copy can be requested by contacting the Water Clerks Office at 603-692-9523. The Somersworth Water Treatment Facility utilizes an ortho phosphate as well as maintaining a neutral pH (6.5-7.5) to inhibit corrosion on the City’s water mains. The orthophosphate creates a coating on the pipe walls know as biofilm that forms a barrier between the piping and the water. Orthophosphate is recognized by the FDA and EPA as a safe and effective additive for corrosion control in drinking water. We continuously monitor the dose to ensure the product is at lowest effective dose to maintain health and safety. Abbreviations: AL: Action Level - the concentration of a contaminant which, when exceeded, triggers treatment or other requirements that a water system must follow. MCLG: Maximum Contaminant Level Goal - the level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety. MCL: Maximum Contaminant Level - the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology. MRDL: Maximum residual disinfectant level. The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. MRDLG: Maximum residual disinfectant level goal. The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants. TT: Treatment Technique - A required process intended to reduce the level of a contaminant in drinking water. NA: not applicable ND: not detectable at testing limit NTU: Nephelometric Turbidity Units PTCU: Platinum-Cobalt color unit’s pCi/l: picocuries per liter (radioactivity) mg/L or ppm: milligrams per liter or parts per million ppb: parts per billion or micrograms per liter Turbidity is a measure of the cloudiness of the water. It is monitored by surface water systems because it is a good indicator of water quality and thus helps measure the effectiveness of the treatment process. High turbidity can hinder the effectiveness of disinfectants. Turbidity has no health effects. Footnotes: *1 Radon is a radioactive gas that you cannot see, taste or smell. It can move up through the ground and into a home through cracks and holes in the foundation. Radon can also get into indoor air when released from tap water from showering, washing dishes, and other household activities. It is a known human carcinogen. Breathing radon can lead to lung cancer. Drinking water containing radon may cause an increased risk of stomach cancer. Our radon analysis of 1100 piCi/l was found at the well site which is no longer regularly used to supply potable water into the distribution system. *2 Lead: Lead can cause serious health effects in people of all ages, especially pregnant people, infants (both formula- fed and breastfed), and young children. Lead in drinking water is primarily from materials and parts used in service lines and in home plumbing. The Somersworth Water Division is responsible for providing high quality drinking water and removing lead pipes but cannot control the variety of materials used in the plumbing in your home. Because lead levels may vary over time, lead exposure is possible even when your tap sampling results do not detect lead at one point in time. You can help protect yourself and your family by identifying and removing lead materials within your home plumbing and taking steps to reduce your family's risk. Using a filter, certified by an American National Standards Institute accredited certifier to reduce lead, is effective in reducing lead exposures. Follow the instructions provided with the filter to ensure the filter is used properly. Use only cold water for drinking, cooking, and making baby formula. Boiling water does not remove lead from water. Before using tap water for drinking, cooking, or making baby formula, flush your pipes for several minutes. You can do this by running your tap, taking a shower, doing laundry or a load of dishes. If you have a lead service line or galvanized requiring replacement service line, you may need to flush your pipes for a longer period. If you are concerned about lead in your water and wish to have your water tested, contact the Somersworth Water Clerks Office at 603-692-9523 and request a sample kit. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available at . Health Effects of Lead: Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and children can have decreases in IQ and attention span. Lead exposure can lead to new learning and behavior problems or exa cerbate existing learning and behavior problems. The children of women who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney or nervous system problems. *3 A Copper content in the treated water prior to entering the distribution system is 0.0342mg/l. Corrosion of household plumbing contributes to the higher average. Filter Gallery Somersworth Water Treatment Facility  Violation Analyte/Contaminant (S)MCL MCLG Our Water (Y/N) Typical Source of Contamination Health Effects Microbiological Contaminants Total Coliform Bacteria < 40 samples Negative/ Naturally present in environment E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Human pathogens in these wastes can >1is positive 0 Absent N cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a greater health risk for infants, young children, the elderly, and people with severely compromised immune systems. Turbidity (NTU) TT (0.3) N/A 0.056 N Soil runoff Turbidity has no health effects. However, turbidity can interfere with disinfection and provide a medium for microbial growth. Turbidity may indicate the presence of disease- (.026-.185) causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. Total Organic Carbon 1.84 Naturally present in environment Total organic carbon (TOC) has no health effects. However, total organic carbon provides a medium for the formation of disinfection byproducts. These byproducts include (TOC,ppm) TT N/A N trihalomethanes (THMs) and haloacetic acids (HAAs). Drinking water containing these byproducts in excess of the MCL may lead to adverse health effects, liver or kidney (1.33-2.21) problems, or nervous system effects, and may lead to an increased risk of getting cancer. Radioactive Contaminants Radon (pCi/l)*1 None Radon is a radioactive gas that you can’t see, taste or smell. It can move up through the ground and into a home through cracks and holes in the foundation. Radon can also get into 0 <200 N Erosion of natural deposits indoor air when released from tap water from showering, washing dishes, and other household activities. It is a known human carcinogen. Breathing radon can lead to lung cancer. Drinking water containing radon may cause an increased risk of stomach cancer. Inorganic Contaminants Arsenic 10 0 0.0013 N Erosion of natural deposits; Runoff from (5 ppb through 10 ppb) While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic. EPA’s standard balances the current Emergency back-up well 0.0019 orchards; Runoff from glass and electronic understanding of arsenic’s possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels production wastes of arsenic, which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems. (Above 10 ppm) Some people who drink water containing arsenic in excess of the MCL over many years could experience skin damage or problems with their circulatory system, and may have an increased risk of getting cancer. Barium (ppm) Treatment plant 2 2 0.0058 N Discharge of drilling waste; Discharge from Some people who drink water containing barium in excess of the MCL over many years could experience an increase in their blood pressure Emergency back-up well 0.0026 metal refineries; Erosion of natural deposits Chlorine (ppm) MRDL=4 MRDLG 0.58 N Water additive used to control microbes Some people who use water containing chlorine well in excess of the MRDL could experience irritating effects to their eyes and nose. Some people who drink water =4 containing chlorine well in excess of the MRDL could experience stomach discomfort. Chromium (ppm) 100 100 0.0012 N Discharge from steel and pulp mills; Some people who use water containing chromium well in excess of the MCL over many years could experience allergic dermatitis. erosion of natural deposits Copper (ppm) 1.3mg/L(AL) 0.172a N Corrosion of household plumbing Copper is an essential nutrient, but some people who drink water containing copper in excess of the action level over a relatively short amount of time could Emergency back-up well 1.3 0.0170 systems; Erosion of natural deposits; experience gastrointestinal distress. Some people who drink water containing copper in excess of the action level over many years could suffer liver or kidney Leaching from wood preservatives damage. People with Wilson’s Disease should consult their personal doctor. Lead (ppb)*2 15ppb (AL) 0 0 N Corrosion of household plumbing Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and children can have decreases in systems; Erosion of natural deposits IQ and attention span. Lead exposure can lead to new learning and behavior problems or exacerbate existing learning and behavior problems. The children of women who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney or nervous system problems. Lead can enter your water from pipes that bring the water to your home and from your home internal plumbing. Always flush your tap by running cold water for one minute before using every morning and after you've been away from home for the day. Use only cold water for drinking and cooking. In addition, our GetTheLeadOutNH program ensures that all K-12 schools and child care facilities in the state test for lead at every outlet where children drink the water and remediate any fixture testing at 5 ppb lead or higher. Nickel (ppm) Emergency well Not 0.0011 N Geological; electroplating, battery production, ceramics N/A established Nitrate (ppm) Treatment Plant 0.29 N Run off from fertilizer use; Leaching from (5 ppm through10ppm) Nitrate in drinking water at levels above 10ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can Emergency back up well 10 10 0.69 septic tanks, sewage; Erosion of natural cause blue baby syndrome. Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant, you should ask for advice from your health care provider. (Above 10 ppm) Infants below the age of six months who drink water containing nitrate in excess of the MCL deposits could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue baby syndrome. Sodium (ppm) Treatment plant 100-250 N/A 41.4 N/A We are required to regularly sample for sodium Emergency back-up well 5.9 Zinc (ppm) Treatment plant 5 5 0.0017 N Galvanized pipes Possible presence of other health related heavy metals Emergency back-up well 0.0246 Volatile Organic Contaminants TTHMs (Total trihalomethanes) (ppb) 80 ppb N/A (1638.75 N By-product of drinking water chlorination Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central to 76) nervous systems, and may have an increased risk of getting cancer. HAA5 (Haloacetic Acids) 60 ppb 24.31 N/A (16 N By-product of drinking water chlorination Some people who drink water containing haloacetic acids in excess of the MCL over many years may have an increased risk of getting cancer. (ppb) to 38) Chloride (ppm) Treatment plant 42 Wastewater, road salt, corrosion Naturally occurring non-toxic Emergency back-up well 250 N/A 13 Iron Emergency back-up well (ppm) .03 N/A 1.18 Geological Manganese (ppm) Treatment plant .0118 Geological .05 N/A .0400 Emergency back up well pH (ppm) Treatment plant 7.07 Precipitation and geology 6.5-8.5 N/A 5.63 Emergency back-up well Sulfate (ppm) Treatment plant 41 Naturally occurring 250 N/A 7 Emergency back up well UCMR Analyte Reporting Detection Limit Average Range Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant Manganese (ug/l) .400 4.24 (2.91-6.02) monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted. HAA5 (ug/l) .400 3.64 (2.91-5.10) HAA6 (BR) (ug/l) .300 26.8 (2.68-6.73) In 2020 the City of Somersworth participated in the fourth round of the Unregulated Contaminant Monitoring Rule (UCMR 4). In 2023 the City HAA9 (ug/l) .200 26.8 (21.0-33.2) also participated in the fifth round of Unregulated Contaminant Monitoring Rule (UCMR 5) and had no detectable contaminants. For a copy of Bromide 5 18.55 (16.5-20.6) either result please call primary operator Greg Kirchofer at 603-692-2268.  City of Rochester, New Hampshire PUBLIC WORKS DEPARTMENT 209 Chestnut Hill Road • Rochester, NH 03867 (603) 332-4096 Fax (603) 335-4352 www.rochesternh.gov 25 June 2026 RE: Intersection Improvements to Old Dover Road and Tebbetts Road Dear Rochester Resident, I am writing to you as your signature, name and address were included on a petition document which was delivered to Public Works on 24 June 2026 (attached). The petition provided opinions as to why a roundabout should not be employed at this intersection. My response follows. In general, the volume and speed of traffic on Old Dover Road combined with line- of-sight limitations and the two-way stop control on Tebbetts Road make it difficult and hazardous to enter or cross Old Dover Road from Tebbetts Road. This intersection has produced over 60 crashes in the past decade including two fatalities since 2018. NH DOT conducted a Road Safety Audit in 2020 which examined and recommended short and long-term options. Short term options were completed. The long-term selected alternative is a mini-roundabout. Roundabouts are left-yielding traffic control facilities which minimize injuries and fatalities as they significantly reduce vehicle collision opportunities and force vehicles to drop speeds to non-lethal speeds. They continually process moving traffic. Running of red lights or running of stop signs are eliminated. A four-way stop was evaluated but determined to be detrimental as there is not enough area, without extra road widening, to accommodate turning trucks which would track into stopped passenger vehicles. A traffic signal was evaluated but the traffic volumes do not support a signal. A concern of stop control on Old Dover Road, or a signal is that they would create long queuing. This intersection processes about 15,000 vehicles per day. I will now address each comment from the 24 June petition: 1. The cutting of healthy trees more than 100 years old. Response: Some trees were trimmed as short-term measures. The Roundabout project may trim back or remove a few trees on Tebbetts Road for clearance from relocated power lines. BUILDINGS AND GROUNDS · HIGHWAY · WATER · SEWER · ENGINEERING  City of Rochester, New Hampshire PUBLIC WORKS DEPARTMENT 45 Old Dover Road • Rochester, NH 03867 (603) 332-4096 Fax (603) 335-4352 www.rochesternh.gov 2. The City will need to take land property of at least 4 houses. Response: The new project footprint will be completely within the existing right of way. No property acquisitions are required, 3. Power lines are to be moved across the street to 5 or more new locations. Response: Power lines are being adjusted as required to accommodate the new project. Existing line of sight problems with existing pole locations will be eliminated. This is not at City cost. 4. Several properties have wells that can be affected. Response: One well is known to be within the vicinity of the existing roadway. The project does not affect that. 5. The proposed project will require many years to complete causing undue distress and difficulties to the people. Response: The project is in final design with anticipated construction this fall. If started this fall per schedule, it will be complete next spring. Appropriate temporary traffic control will be employed to maintain access during construction. 6. This problem will not solve the problem of accidents at the intersection. Response: It is well established across the country and world- wide that roundabouts provide safer intersections for motorists and passengers. The presence of the roundabout will not only make the intersection safer, but it will reduce speeds on the roadway legs approaching it. 7. The project is expected to be multi-million dollars which need to be funded by taxpayers. Response: Construction estimate is about one and a half million dollars. Federal Highway funds are providing 90% of this funding through the Highway Safety Improvement Program. City investment is a minimal part and is a very reasonable investment to reduce future injuries and fatalities at this intersection. BUILDINGS AND GROUNDS · HIGHWAY · WATER · SEWER · ENGINEERING  City of Rochester, New Hampshire PUBLIC WORKS DEPARTMENT 45 Old Dover Road • Rochester, NH 03867 (603) 332-4096 Fax (603) 335-4352 www.rochesternh.gov The need for this improvement has been understood since 2019. A road safety audit was conducted and multiple public meetings have been held which have considered public input and discussed options. Peter C. Nourse. PE Director of City Services 209 Chestnut Hill Road Rochester, NH 03867 phone: 603.332.4096 Attachment: Petition to stop Roundabout project at intersection of Old Dover Road and Tebbitts Road; delivered to Public works 6/24/26 BUILDINGS AND GROUNDS · HIGHWAY · WATER · SEWER · ENGINEERING