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Union Bridge

Water Quality Report

Providing a State and Federally Mandated Report on Water Quality

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.

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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

For more information regarding this report, contact Dawn Metcalf (Clerk Treasurer) at 410-775-2711

Public participation is encouraged at the regularly scheduled Town Hall meetings occurring on the

fourth Monday of every month at Town Hall, 104 West Locust Street.


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


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 MDE and is available on their website,

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

Source Water Information 

SWA = Source Water Assessment

Source Water Name

Type of Water

Report Status

Location

UNION BRIDGE TOWN HALL NOPERMIT 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

- 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.


Currently, there are no federal regulations (i.e. Maximum Contaminant Levels (MCLs)) for PFAS in drinking water. However, the U.S. Environmental Protection Agency (EPA) has issued a Health Advisory Level (HAL) of 70 parts per trillion (ppt) for the sum of PFOA and PFOS concentrations in drinking water. While not an enforceable regulatory standard, when followed, the EPA HAL does provide drinking water customers, even the most sensitive populations, with a margin of protection from lifetime exposure to PFOA and PFOS in drinking water. Beginning in 2020, the Maryland Department of the Environment (MDE) initiated a PFAS monitoring program. The combined PFOA and PFAS concentration from samples taken from our water system was 21.29 ppt. MDE anticipates that EPA will establish an MCL for PFOA and PFOS in the near future. This would entail additional monitoring. Additional information about PFAS can be found on the MDE website: https://mde.maryland.gov/PublicHealth/Pages/PFAS-Landing-Page.aspx"

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

MCL

Action Level (AL)

90th Percentile

# Sites Overall

Units

Lead and Copper

Likely Source of Contamination

Copper

09/24/2021

1.3

1.3

0.42

0

ppm

Copper

Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems.

Lead

09/24/21

0

15

<5

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.


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.

Regulated Contaminants 

Disinfectants and Disinfection By-Products


Collection Date

Highest Level Detected

Range of Levels Detected

MCLG

MCL

Units

Violation

Likely Source of Contamination

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 the total

60

ppb

N

By-product of drinking water disinfection.

Total Trihalomethanes (TTHM)

2022

42.7

19.4 - 69.9

No goal for the total

80

ppb

N

By-product of drinking water disinfection.

Inorganic Contaminants

Barium

08/14/2021

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: Leaching 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)


Violation

Likely Source of Contamination

Highest single measurement

1 NTU

0.19 NTU

N

Soil runoff

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

Unregulated Contaminants

PFAS


Collection Date

Highest Level Detected

Range of Levels Detected

MCLG

MCL

Units

Violation

Likely Source of Contamination

PFAS

10/22

41.01

41

NA

NA

ppt

N

Antropogenic Activity

PFOS

10/22

16.7

16

NA

NA

ppt

N

Antropogenic Activity

PFOA

10/22

3.78

3.78

NA

NA

ppt

N

Antropogenic Activity

PFHxS

10/22

9.85

9.85

NA

NA

ppt

N

Antropogenic Activity

HFPO-DA

10/22

<1

<1

NA

NA

ppt

N

Antropogenic Activity

PFBS

10/22

4.28

4.28

NA

NA

ppt

N

Antropogenic Activity

Total Organic Carbon

The percentage of Total Organic Carbon (TOC) removal was measured each month and the system met all TOC removal requirements set, unless a TOC violation is noted in the violations section.

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