Union Bridge Water Quality Report

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2020 Annual Drinking Water Quality Report
(Union Bridge Consumer Confidence Report)

Annual Drinking Water Quality Report


TOWN OF UNION BRIDGE

MD0060013 


Annual Water Quality Report for the period of January 1 to December 31, 2020. For more information regarding this report contact:

Dawn Metcalf: 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 St.


TOWN OF UNION BRIDGE is Ground Water Under Direct Influence of Surface water


Este informe contiene información muy importante sobre el agua que usted. bebe. Tradúzcalo ó hable con alguien que lo entienda bien



A source water assessment has been performed by the Maryland Department of the Environment and is accessible on their website at:

https://mde.maryland.gov/programs/Water/water_Supply/Source_Water_Assessment_Program/Pages/by_county.aspx



- 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.


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                         T OF UNION BRIDGE 104 WEST LOCUST ST


WHYTE ST WELL (FIRE DEPT) CL940608 GUCL940608                       GU                               Y                         T OF UNION BRIDGE APPROX. 50 FT S OF LOCUST ST




2020 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       Lead and Copper        Likely Source of contamination


Copper           06/05/2018          1.3                 1.3                           0.29                           0                  ppm               Copper                 Erosion of natural deposits

                                                                                                                                                                                                                   Leaching from wood

                                                                                                                                                                                                                   preservatives; Corrosion of

                                                                                                                                                                                                                   household plumbing systems.


Lead               06/05/2018             0                   15                           6.2                            0                   ppb                 Lead                   Corrosion of household plumbing systems;                                                                                                                                                                                                                       Erosion of natural deposits.



Water Quality Test Results


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.


mrem: millirems per year (a measure of radiation absorbed by the body)


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.



Regulated Contaminants


Disinfectants and

Disinfection By-Products        Collection Date   Highest Level    Range of Levels      MCLG             MCL             Units     Violation     Likely Source of contamination

                                                                              Detected              Detected


Chlorine                                         2020                   1.6                    1.4 - 1.6         MRDLG = 4       MRDL = 4     ppm           N            Water additive used to control microbes.


Haloacetic Acids (HAA5)              2020                     2                         0 - 0            No goal for           60              ppb            N            By-product of drinking water disinfection

                                                                                                                                    the total 


Total Trihalomethanes(TTHM)      2020                    48                   26.6 - 79.5       No goal for          80               ppb            N           By-product of drinking water disinfection

                                                                                                                                     the total 


Inorganic Contaminants


Barium                                        08/14/2018           0.037               0.037 - 0.037           2                    2                ppm           N           Discharge of drilling wastes;

                                                                                                                                                                                                                 Discharge from metal refineries; Erosion of

                                                                                                                                                                                                                 natural deposits.


Nitrate [measured as Nitrogen]    2020                      6                      5.7-6.24              10                  10              ppm            N          Runoff from fertilizer use, Leaching from                                                                                                                                                                                                                           Septic tanks, Sewage, 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                                                 0.15 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.


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