
Union Bridge
Water Quality
Report
2022 Annual Drinking Water Quality Report
(Union Bridge Consumer Confidence Report)
Town of Union Bridge
MD0060013

Annual Water Quality Report for the period of January 1 to December 31, 2022
Annual Water Quality Report for the period of January 1 to December 31, 2022
For more information regarding this report, contact Dawn Metcalf (Clerk Treasurer) at 410-775-2711
This report is intended to provide you with important information about your drinking water and the efforts
made by the water system to provide safe drinking water. Public participation is encouraged at the regularly scheduled Town Hall meetings occurring on the fourth Monday of every month at the Town Hall, 104 West Locust Street.
Este informe contiente informacion muy importante sobre el agua que usted Bebe.
Traduzcalo o hable con alguien que lo entienda bien.
Town of Union Bridge is ground water under the direct influence of surface water.
A source water assessment was performed by the Maryland Department of the Environment (MDE) and is available on their website,
- Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas production and mining activities.
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.
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 (800-426-4791).
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high quality drinking water, but we cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead.
"PFAS – short for per- and polyfluoroalkyl substances – refers to a large group of more than 4,000 human-made chemicals that have been used since the 1940s in a range of products, including stain- and water-resistant fabrics and carpeting, cleaning products, paints, cookware, food packaging and fire-fighting foams. These uses of PFAS have led to PFAS entering our environment, where they have been measured by several states in soil, surface water, groundwater and seafood. Some PFAS can last a long time in the environment and in the human body and can accumulate in the food chain.
Beginning in 2020, the Maryland Department of the Environment (MDE) initiated a PFAS monitoring program. PFOA and PFOS are two of the most prevalent PFAS compounds. PFOA and PFOS concentrations from samples taken from out water system in 2022 were 3.78 parts per trillion (ppt) and 16.7 ppt respectively, which resulted in the distribution of a tier two notice as required by MDE. In March 2023, EPA announced proposed maximum contaminate levels (MCL's) of 4 ppt for PFOA and 4 ppt for PFOS, and a Group Hazard Index for four additional PFAS compounds. Future regulations would require additional monitoring as well as certain actions for systems above the MCL of Hazard Index. EPA will publish the final MCL's and requirements by the end of 2023 or the beginning of 2024. Additional information about PFAS can be found on the MDE website: https://mde.maryland.gov/PublicHealth/Pages/PFAS-Landing-Page.aspx"
Source Water Information
SWA = Source Water Assessment
Source Water Name Type of Water Report Status Location
UNION BRIDGE TOWN HALL NO PERMIT GU GU Y
WHYTE ST WELL (FIRE DEPT) GU Y T OF UNION BRIDGE APPROX. 50 FT S
CL940608 GUCL940608 OF LOCUST ST
2022 Regulated Contaminants Detected
Lead and Copper
Definitions:
Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of safety.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
Lead and Copper Date Sampled MCLG Action Level (AL) 90th Percentile #Sites Over AL Units Likely Source of Contamination
Copper 09/24/2021 1.3 1.3 0.42 0 ppm Erosion of natural deposits leaching from
wood preservatives; Corrosion of household
plumbing systems.
Lead 09/24/2021 0 15 <5 0 ppb Corrosion of household plumbing systems;
Erosion of natural deposits.
Disinfectants and Disinfection By-Products
Collection Date Highest Level Range of Levels MCLG MCL Units Violation Likely Source of Contamination
Detected Detected
Chlorine 2022 1.7 1.6 - 1.8 MRDLG = 4 MRDL = 4 ppm N Water additive used to control
microbes
Haloacetic Acids (HAA5) 2022 6.9 0 - 11.7 No goal for 60 pbb N By-product of drinking water
the total disinfection
Total Trihalomethanes (TTHM) 2022 42.7 9.4 - 69.9 No goal for 80 ppb N By-product of drinking water
the total disinfection
Inorganic Contaminants
Collection Date Highest Level Range of Levels MCLG MCL Units Violation Likely Source of Contamination
Detected Detected
Barium 08/14/21 0.033 0.033 - 0.033 2 2 ppm N Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits
Nitrate [measured as Nitrogen] 2022 6 5.58 - 5.69 10 10 ppm N Runoff from fertilizer use; Leach from septic tanks; Erosion of natural deposits
- Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can 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 advice from your health care provider.
Turbidity
Limit (Treatment Technique) Level Detected Violation Likely source of contamination
Highest Single Measurement 1 NTU 0.19 NTU N Soil runoff
Information Statement: Turbidity is a measurement of the cloudiness of the water caused by suspended particles. We monitor it because it is a good indicator of water quality and the effectiveness of our filtration
95PT
Lowest monthly % meeting limit 0.3 NTU 100% N Soil runoff
Unregulated Contaminants
PFAS
Collection Date Highest Level Range of Levels MCLG MCL Units Violation Likely Source of Contamination
Detected Detected
PFAS 10/22 41.01 41 NA NA ppt N Anthropogenic activity
PFOS 10/22 16.7 16 NA NA ppt N Anthropogenic activity
PFOA 10/22 3.78 3.78 NA NA ppt N Anthropogenic activity
PFHxS 10/22 9.85 9.85 NA NA ppt N Anthropogenic activity
HFPO-DA 10/22 < 1 < 1 NA NA ppt N Anthropogenic activity
PFBS 10/22 4.28 4.28 NA NA ppt N Anthropogenic activity
Water Quality Test Results
Water Quality Test Results
Definitions:
Definitions:
The following tables contain scientific terms and measures, some of which may require explanation.
Avg: Regulatory compliance with some MCLs are based on running annual average of monthly samples.
Maximum Contaminant Level or MCL: 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
Level 1 Assessment: A Level 1 assessment is a study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system
Maximum Contaminant Level Goal or MCLG: 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
Level 2 Assessment: A Level 2 assessment is a very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.
Maximum residual disinfectant level or MRDL: 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.
Maximum residual disinfectant level goal or MRDLG: 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.
NA: not applicable.
ppt: nanograms per liter or parts per trillion - or one once in 7,350,000,000 gallons of water.
ppb: micrograms per liter or parts per billion - or one ounce in 7,350,000 gallons of water.
ppm: milligrams per liter or parts per million - or one ounce in 7,350 gallons of water.
Treatment Technique or TT: A required process intended to reduce the level of a contaminant in drinking water.