Consumer Confidence Report for 2024

Exactly as extracted, unformatted — for checking against the original. The readable version is easier to read.

ANNUAL DRINKING WATER QUALITY REPORT FOR 2024
TOWN OF CENTREVILLE
PWSID # 0170001
MAY, 2025
The Town of Centreville is pleased to present this year's Annual Water Quality Report. This report is
designed to inform you about the water quality 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. The Town’s water source is located in the Aquia
formation.
The Maryland Department of the Environment’s Water Supply Program completed a Source Water
Assessment for the Town of Centreville in 2003. A copy of that assessment can be reviewed at City Hall.
For more information, please call 1-800-633-6101.
https://mde.maryland.gov/programs/Water/water_supply/Source_Water_Assessment_Program/Pages/by_county.asp
x
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 individuals 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 microbiological contaminants are available from the Safe Drinking
Water Hotline (800-426-4791).
We want our valued customers to be informed about their water utility. If you want to learn more, please
attend any of our regularly scheduled town meetings held on the first and third Thursday of each month at
7:00 pm at the Liberty Building, located at 107 North Liberty Street, Centreville, MD 21617.
If you have any questions about this report or have questions concerning your water quality, please call
Public Works at 410-758-1180.
The Town of Centreville routinely monitors for contaminants in your drinking water according to Federal
and State laws. This table shows the results of our monitoring for the period of January 1st to December
31st, 2024. 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's important to remember that the presence of these contaminants does not necessarily pose a health risk.
In this table you will find many terms and abbreviations you might not be familiar with. To help you better
understand these terms we've provided the following definitions:
Parts per million (ppm) or Milligrams per liter (mg/l) - one part per million corresponds to one minute in
two years or a single penny in $10,000.
Parts per billion (ppb) or Micrograms per liter - one part per billion corresponds to one minute in 2,000
years, or a single penny in $10,000,000.
Parts per trillion (ppt) or Microgram per liter- one part per trillion corresponds to one minute in 2,000,000
years, or a single penny in $10,000,000,000.

Picocuries per liter (pCi/L) - picocuries per liter is a measure of the radioactivity in water.
Action Level - the concentration of a contaminant which, if exceeded, triggers treatment or other
requirements which a water system must follow.
Maximum Contaminant Level - The “Maximum Allowed” (MCL) is 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.
Maximum Contaminant Level Goal - The “Goal” (MCLG) is 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.
TEST RESULTS
Contaminant Violation Level Unit MCLG MCL Likely Source of Contamination
Y/N Detected Measureme
nt
Radioactive Contaminants
Beta/photon emitters N pCi/l 0 50 Decay of natural and man-made
(Highest level) 9.7 deposits
(Range) 9.7-9.7
(2024)
Combined Radium N 0.2-0.3 pCi/l 0 5 Erosion of natural deposits
226/228 (2021)
Inorganic Contaminants
Arsenic (2023) N 10.2 ppb 0 10 Erosion of natural deposits; Runoff
Averge 0-10.2 from orchards; Runoff from glass and
electronics production waste
Disinfection and Disinfection By- Products
Chlorine (2024) N ppm 4 4 Water Additive used to control
(Highest Level Detected) 0.9 microbes
Range 0.6- 0.9
Haloacetic Acids (2024) N 1.94 ppb No 60 By-product of water disinfection
HAA5 goal for
Average 1.94-1.94 the
total
Total Trihalomethanes N 3.6 ppb No 80 By-product of water disinfection
(2024) TTHM goal for
Average 3.6-3.6 the
total
Chloroform (2024) N 2.59 Ug/L No 5 Occurs naturally in water
goal for
the
total
Barium (2020) N 0.11- ppm 2 2 Discharge of drilling wastes;
0.134 discharge from metal refineries;
erosion of natural deposits
Regulated Contaminants

Coliform Bacteria Total Highest Fecal Total Violation Likely source of
Maximum Containment Level Goal Coliform No. of Coliform or number Contamination
maximu Positive ecoli of
m maximum positive e
containm containment coli or
ent level level fecal
coliform
samples
1 Naturally present in the
0 positive 2
0
N Environment
monthly
sample
Viola 90th Range of Units MCLG (AL Limits) Likely Source of Contamination
Lead and Copper tion Percen Tap or / # Sites
Y/N tile Sampling MRDLG Over
Copper (distribution) N 0.142 0.0200- ppm 1.3 AL= 1.3 Corrosion of household plumbing
(2024) 0.1993 systems; erosion of natural deposits;
leaching from wood preservatives
Zero (0)
Lead (distribution) N 5 <0.0050- ppb 0 AL= 15 Corrosion of household plumbing
(2024) 0.0136 systems; erosion of natural deposits;
leaching from wood preservatives
Zero (0)
Note: Test results are for the year 2024 or as indicated; not all contaminants are required to be tested annually. These are the most recent
results.
An initial inventory of service line pipe materials located within our service area required to be submitted
to the Maryland Department of the Environment (MDE) by October 16, 2024. The Town of Centreville
submitted the service line inventory report by the deadline, and the “report is available upon request”.
Centreville has completed the service line inventory required by U.S. EPA’s Lead and Copper Rule
Revisions (initial inventory due October 16th, 2024)
For more information on our service line inventory please call 410-758-1180.
Through completing a records review, it has been determined it has no Lead or Galvanized Replacement
(GRR) service lines in its distribution system. This includes all system owned and customer portions of
all service lines regardless of actual or intended use.
Construction records, meter replacements, and distribution maps were used to help us determine the
composition of our systems service lines.
Centreville has reviewed all applicable sources of information to complete the inventory and will continue
to identify and track service line materials as they are encountered during normal operations. If, in the
future, a Lead or Galvanized requiring replacement (GRR) service line is found within our system, we
will prepare an updated inventory and submit to the Maryland Department of the Environment and in
addition, the inventory will be made publicly available for water customers to view, and customers will be
notified of any change in the service line material, if applicable.
For more information on our service line inventory please call 410-758-1180.
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. The Town of Centreville is responsible for providing high quality drinking water and removing
lead pipes but cannot control the variety of materials used in plumbing components in your home. You
share the responsibility for protecting yourself and your family from the lead in your home plumbing.
You can take responsibility by identifying and removing lead materials within your home plumbing and
taking steps to reduce your family's risk. Before drinking tap water, flush your pipes for several minutes
by running your tap, taking a shower, doing laundry or a load of dishes. You can also use a filter certified
by an American National Standards Institute accredited certifier to reduce lead in drinking water. If you
are concerned about lead in your water and wish to have your water tested, contact Centreville at 410-
758-1180. Information on lead in drinking water, testing methods, and steps you can take to minimize
exposure is available at http://www.epa.gov/safewater/lead.
MCL’s are set at very stringent levels. To understand the possible health effects described for many
regulated contaminants, a person would have to drink two (2) liters of water every day at the MCL level
for a lifetime to have a one-in-a-million chance of having the described health effect.
While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic. EPA’s
standard balances the current understanding of arsenic’s possible health effects against the cost of removing
arsenic from drinking water. EPA continues to research the health effects of low levels 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. We are continuing to monitor arsenic on a quarterly basis.
All sources of drinking water are subject to potential contamination by substances that are naturally
occurring or man-made. These substances can be microbes, inorganic or organic chemicals and radioactive
substances. All drinking water, including bottled water, may reasonably be expected to contain at least
some small amounts of contaminants. The presence of contaminants does not necessarily indicate that the
water poses a health risk. More information about contaminants and potential health effects can be obtained
by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-800-426-4791.
The Maryland Rural Water Association’s State Circuit Rider assisted with the completion of this report.
Thank you for allowing us to continue providing your family with clean, quality water this year. In order
to maintain a safe and dependable water supply we sometimes need to make improvements that will benefit
all our customers. These improvements are sometimes reflected as rate structure adjustments. Thank you
for your understanding.
Violation
Lead and Copper Rule- FOLLOW UP OR ROUTINE TAP M/R (LCR)- Begin 9/30/2024 End
11/03/2024: We failed to comply with follow-up or routine tap monitoring requirements related to
lead and copper.