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2021 Annual Drinking Water Quality Report St. Martin's by the Bay MD0230008 In compliance with Safe Drinking Water Act amendments by Congress of 1996 and subsequent Federal and State regulations. St. Martin's by the Bay is pleased to provide this annual water quality report for calendar year 2020. St. Martin's by the Bay routinely monitors for contaminants in your drinking water. For more information on the source of your water and the signiticant potential sources of contamination. contact the Maryland Water Supply Program al the Maryland Department of the Environment al (410) 537-3000 or visit the web:
https:/imde.maryland.gov/programs/Water/water supplv/Pages/index.asps.
Is my water safe? We are very pleased to provide you with this year's Annual Quality Water Report. This report is designed to inform you about the quality water and services we deliver to you every day.
Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water and vigilantly safeguard our water supplies. We are proud to report that our system is not in violation of a maximum contaminant level or any other water quality standard.
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/Centers for Discase Control (CDC) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Water Drinking Hotline (800-426-4791). 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 EPA's Safe Drinking Water Hotline (1- 800-426-4791).
How do we monitor for contaminants? St. Martin's by the Bay routinely monitors for contaminants in your drinking water according to Federal and State laws. The below tables show the results of our monitoring for the period of January Ist to December 31st. 2020. As water travels over the land or underground. it can pick up substances or contaminants such as microbes. inorganic and organic chemicals, and radioactive substances. All drinking water. including bottled drinking water. may be reasonably expected to contain at least small amounts of some contaminants. It is important to remember that the presence of these contaminants does not necessarily pose a health risk.
Why may there be contaminants in my drinking water? 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 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's (EPA) Safe Drinking Water Hotline (800-426-4791). The sources of drinking water (both tap water and bottled water) include rivers. lakes. streams. that may he present in source water 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 stormwater runoff, industrial or domestic wastewater discharges. oil and gas production. mining. or farming.
Pesticides and herbicides. which may come from a variety of sources such as agriculture. urban stormwater runoff. and residential uses. • Organic chemical contaminants. including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production. and can also come from gas stations. urban stormwater runofT. and septic systems. 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 that limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water. which must provide the same protection for public health.
Important Drinking Water Definitions:
MCLG:
Maximum Contaminant Level Goal. The level of a contaminant in drinking water below which there is no known or expected risks for safety. MCGI. allows for margin of' safety.
MCL:
Maximum Contaminant Level. The highest level of'a contaminant that is allowed in drinking water. MCDs are set as close to the MCL.Gs as feasible using the best available treatment technology.
AL:
Action Level. The concentration of a contaminant which. if' exceeded. triggers treatment or other requirements which a must follow.
ALG:
Action Level Goal. The level of a contaminant in drinking water below which there is no known or expected risk to health. AL.Gs allon for a margin of safety.
Important Drinking Water Definitions continued:
MRDIG: Maximum Residual Disinfectant Level Goal. The level of'a drinking mater disinfectan: below which there is no known or expected risk to health. MRDLOis do not reflect the benefits of the use of disinfectants to control microbe contaminants. MRDI.:
Maximum Residual Disinfectant Level. The highest levch of'a disinfectant alloned in drinking mater. There is convincing evidence that addition of a disinfectant is necessary for control of microbe contaminants.
I'nits of Measurement & Conversions:
NA: Not applicable ppm: parts per million. or milligrams per liter (mg/L.) pСi/l.: picocuries per liter (a measure of'radioactivity) ppb: parts per billion, or micrograms per liter (ug/L.) Water Quality Data Table The table below lists all of the drinking water contaminants that we detected during the calendar year of this report. The presence of contaminants in the water does not necessarily indicale that the water poses a health risk. Unless otherwise noted. the data presented in this table is from testing done in the calendar year of the report. The EPA or the State requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants do not change frequently:
Date Contaminant Copper Sampled MCLG Action Level (AL) Percentile # sites over AL Units Violation 2020 Lead 2020 0 15 2.4 Ppl No Typical Source Erosion of natural deposits:
leaching from wood preservatives: corrosion of houschold plumbing systems Corrosion of household plumbing systems: erosion of natural deposits Contaminant (units) Collection MCLG Date Disinfectants and Disinfection By-Products:
Chlorine (ppm) 2020 MRDLG 4 MCL Highest Level Detected Range Low High Violation Typical Source Haloacetic Acids HAAS (ppb) Total Tribalomethanes (ppb) 2020 2020 No goal for the total No goal for the total MRDI.=4 60 80 0.9 0.8 6.1 0.9 S.1 6.1 No No No Water additive used to control microbes Byproduct of chlorination Byproduct of chlorination coco it e poseid strom but one pes he drink le conting coper in our the ein le lever a vehicly short moe al time could experience gastrointestinal distress, suffer liver or kidney damage. People with Wilson's Disease should consult their personal doctor. Lead If present. elevated levels of lead can cause serious health problems. especially in pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. St. Martin's by the Bay is responsible for providing high quality drinking water but 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 Mushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your drinking 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 EPA Safe Drinking Water Hotline ad 1-800-426-4791 or at http://w011.epa.gos/satemater/lead.
St. Martin's by the Bay For additional information or questions contact:
Randy Merrill, Sharp Water Culligan 129 Columbia Road Salisbury, MD 21801 410-742-3333 Prepared by: Water Testing Labs of Man land. Inc For more information on contaminants in drinking water and its effects go to www.wtind.com
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