2023 Annual Drinking Water Quality Report  Village of Walnut Creek Water System Number: NC 04-96-155  We are pleased toj present to you this year's Annual Drinking Water Quality Report. This report is a snapshot of last year's water quality. Included are details about your source(s) of water, what it contains, and how it compares tos standards set by regulatory agencies. Our constant goal is toj provide you with as safe and dependable supply of drinking water. We want yout 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 ofy your water and to providing you with this information! because informed customers are our best allies. Ifyoul have any questions about this report or concerning your water, please contact Darren Howery at (919) 778-9687. We want our valued customers tol be informed about their water utility. Ify you want tol learn more, please attend any of our regularly scheduled meetings. They are held at' Town Hall on the fourth Wednesday of each month at 7:00 pm.  What EPA Wants You to Know  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 thel Environmental: Protection Agency's Safe Drinking Water Hotline (800-426- Some people may bei more vulnerable to contaminants in drinking water than the general population. mmuno-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, andi infants can be particularly at risk fromi infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means tol lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safel Drinking Water Hotline (800-426-4791). Ifpresent, elevated levels of lead can cause serious health problems, especially forj pregnant women and young children. Lead in drinking wateri is primarily from materials and components associated with service lines and home plumbing. Village of Walnut Creek is responsible for providing high quality drinking water, but cannot controli the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize thej potential forl lead exposure by flushing your tap for 30: seconds to 21 minutes before using water for drinking or cooking. Ifyou are concerned about lead in your water, you may wish tol have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure Thes sources of drinking water (both tap water and bottled water): include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of thel land or through the ground, it dissolves naturally-occurring: minerals and, in some cases, radioactive material, and canj pick up substances resulting from the presence of animals or from human activity. Contaminants that may bej 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 bei 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 by-products ofi industrial processes and petroleum production, and can also come: from gas stations, urban stormwater runoff, and septic systems; and ndioactivecontaminants, which can bei naturally-occuring or be the result of oil and gas production and mining Inc 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  4791).  isa available from the Safe Drinking Water Hotline or at htip:/www.epa.govisafewaterlead.  activities.  protection for public health.  When You Turn on Your Tap, Consider the Source  The water thati is used by this system is purchase water from Wayne Water Districts.  12/2023    Source Water Assessment Program (SWAP) Results  Thel North Carolina Department of] Environmental Quality (DEQ), Public Water Supply (PWS) Section, Source Water Assessment Program (SWAP) conducted assessments for all drinking waters sources across. North Carolina. Thej purpose oft the assessments was to determine the susceptibility of each drinking water source (well or surface wateri intake) tol Potential Contaminant Sources (PCSs). The results of the assessment are available in SWAP Assessment Reports that include maps, background information and a relative  susceptibility rating of Higher, Moderate or Lower.  The relative susceptibility rating ofe eachs source: for Village of Walnut Creek was determined by combining the contaminant rating (number and location of PCSs within the assessment area) and thei inherent vulnerability rating (i.e., characteristics or existing conditions of the well or watershed andi its delineated assessment area). The assessment findings are summarized in the table below:  Susceptibility of Sources to Potential Contaminant Sources (PCSs)  Source Name Anderson well #27 Arrington brdg rd-deep Arrington brdg rd-shallow Asheville road well 64 Asheville road well 65 Barwick site well #12 Britt site well #15 Brogden site well #37 Camp. jubilee rd-deep Camp jubilee rd-shallow Cliffs well #11 Fields site bpsd well 3 Foss site well #4 Hines site well #19 Hooks site well #30 Joel Morris road well 61 Kinsey site well #2 Kinsey tank site well #5 Kirby site Kirby well @ wtp 2 Lynch site well #8 (#2) Murray site well #14 North site Pikeville-Princeton: road Pikevlle-Princeton: road Pollock well #6 Preast site well #10 Radford road well 70 Radford road well 71 Rice site Smith site well #20 Smith well #7 Smith well #7-a South site Stanley chapel rd-deep Stanley chapel rd-shallow Sutton site well #9  Susceptibility Rating Lower Lower Moderate Lower Lower Lower Lower Lower Lower Lower Lower Moderate Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Lower Moderate Lower Lower Lower Lower Moderate Lower  SWAP. Report Date September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020  12/2023    Source Name Uzzell site-nwwsd well Vinson site well #1 Wellt #17- - potts site Well #29 Well #36 Well #38 Well #42 Well #43 Well #44 Well #45 Well #46 Well #47 Well #49 Well #50 Well #52 Well #53 White site well #3 Wiggins site well #7  Susceptibility Rating Lower Lower Lower Lower Lower Lower Moderate Moderate Moderate Moderate Moderate Moderate Moderate Moderate Moderate Moderate Lower Lower  SWAP Report Date September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020 September 10, 2020  The complete SWAP. Assessment report for Village of Walnut Creek may be viewed on the Web at:  htps/www.ncwater.ory/page-600 Note that because SWAP: results and reports arej periodically updated by thel PWS Section, the results available on this web site may differ from thet results that were available at the time this CCR was prepared. Ifyou are unable toa access your SWAP: report on the web, your may mail a written request for aj printed copy to: Source Water Assessment Program - Report Request, 1634 Mail Service Center, Raleigh, NC: 27699-1634, or email requests to swap@ncdenr.gov. Please indicate your system name, number, and provide your name, mailing address and phone number. Ifyoul have any questions about the SWAP  report please contact the Source Water Assessment staff by phone at 919-707-9098.  Itisi important to understand that as susceptibility rating of "higher" does noti imply poor water quality, only the system' 's potential to  become contaminated by PCSs in the assessment area. Help Protect Your Source Water  Protection of drinking water is everyone'sr responsibility. Wel have implemented the following source water protection actions: You can help protect your community's drinking water source(s) in several ways: (examples: dispose of chemicals properly; take used motor oilt to ai recycling center, volunteer in your community toj participate in group efforts to protect your source, etc.).  12/2023    Important Drinking Water Definitions:  Not-Applicable (N/A)- -1 Information not applicable/not required for that particular waters system or for that particular rule. Non-Detects (ND): Laboratory analysis indicates that the contaminant is not! present at the level of detection set fort the Parts per million (ppm) or Milligrams per liter (mg/L) One part per million corresponds to one: minute in two years or as single Parts per billion (ppb) or Micrograms, per liter (ug/L) One part per billion corresponds to one minute in 2,000 years, ora Parts per trillion (ppt) or Nanograms per liter (nanograms/L) - Onej part pert trillion corresponds to one minute in! 2,000,000 Parts per quadrillion (ppq) or Picograms per liter (picograms/L) - One part per quadrillion corresponds to one: minute in  particular methodology used. penny: in $10,000. single penny in $10,000,000.  years, or as single penny in $10,000,000,000.  2,000,000,000 years or one pennyi in $10,00,00,000,000.  Picocuries per liter (pCi/L) - Picocuries per literi is ai measure oft the radioactivity in water.  Million. Fibers per Liter (MFL) Million fibers per liter is ai measure of the presence of asbestos fibers that are longer than 10 Nephelometric Turbidity Unit (NTU) Nephelometric turbidity unit is ai measure of the clarity of water. Turbidity in excess of Variances and Exceptions - State or EPA permission not to meet anl MCL or Treatment Technique under certain conditions. Action Level (AL) The concentration ofa contaminant which, ife exceeded, triggers treatment or other requirements whicha Treatment Technique (TT)- A required process intended toi reduce thel level ofa contaminant in drinking water. Maximum Residual Disinfection Level (MRDL) - Thel highest level ofa disinfectant allowed in drinking water. There is convincing evidence that addition ofac disinfectant is necessary for control of microbial contaminants. Maximum Residual. Disinfection Level Goal (MRDLG) The level ofa drinking water disinfectant below which there isi no known or expected risk tol health. MRDLGS do not: reflect the benefits oft the use of disinfectants to control microbial Locational Running Annual. Average (LRAA) -The average of sample analytical results for samples taken ata aj particular monitoring location during thej previous four calendar quarters under the Stage 21 Disinfectants and] Disinfection Byproducts Running Annual Average (RAA) - The average ofs sample analytical results for samples taken during the previous four calendar Level 1 Assessment-Al Level. 1 assessment is a study oft thes water system to identify potential! problems and determine (ifpossible) Level 2. Assessment- A. Level 2 assessment is a very detailed study of thes water. system to identify potential problems and determine (ifpossible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our Maximum Contaminant Level (MCL) Thel highest level ofa contaminant that is allowed in drinking water. MCLs are: set as Maximum Contaminant Level Goal (MCLG) The level ofa contaminant in drinking water below which there is no known or  micrometers.  5NTU isj just noticeable to the average person.  water system must follow.  contaminants. Rule. quarters.  why total coliform bacteria have been found in our water system.  water. system on multiple occasions.  close to the MCLGS as feasible using the best available treatment technology. expected risk tol health. MCLGS allow for a margin ofs safety.  12/2023    Water Quality Data Tables of Detected Contaminants  We routinely monitor for over 150 contaminants in your drinking water according to. Federal and State laws. Thet tables below list all the drinking water contaminants that we detected in the last round ofs sampling for each particular contaminant group. Thej presence of contaminants does not necessarily indicate that water poses al health risk. Unless otherwise noted, the data presented in this tablei is from testing done. January 1 through December 31, 2023. Thel EPA and the State allow us to monitor for certain contaminants less than once] pery year beçcause the concentrations oft these contaminants are not expected to vary significantly from  year to year. Some oft the data, though representative of the water quality, is moret than one year old.  Lead and Copper Contaminants Contaminant (units) Copper (ppm) (90" percentile) Lead (ppb) (90t percentile)  Your Water Number of 0.933 (ppm) 0.00 (ppb)  Sample Date (90" Percentile) sites found MCLG  AL  Likely Source of Contamination AL=1.3 Corrosion of household plumbing systems; erosion ofr natural deposits AL=15 Corrosion ofl household; plumbing systems; erosion ofr natural deposits  abovet the AL 0 0  7/26/23 7/26/23  1.3 0  Disinfectant Residuals Summary  MRDL Violation YN N  Your Water (RAA)  Range Low High  MRDLG 4  MRDL 4.0  Likely Source of Contamination Watera additive used to control microbes  Chlorine (ppm)  1.00 (ppm) 0.54 (ppm)- 1.54 (ppm)  Total' Trihalomethanes (TTHM) and Haloacetic Acids (five) (HAA5)  Contaminant (units) TTHM (ppb) Location B01 B02 HAAS (ppb) Location B01 B02  MCL Violation Your Water Y/N N  Range Low High  MCLG MCL N/A  Source of Contamination 80 Byproduct of drinking water disinfection  Year Sampled 2023  (highest LRAA)  Likely  16.0(ppb) 10.0(ppb  16.0(ppb) 10.0(ppb)  2023  N  N/A  60 Byproduct of drinking water disinfection  12.0(ppb) 7.0(ppb)  12.0(ppb) 7.0(ppb)  Thel PWS Section requires monitoring for other misc. contaminants, some for which thel EPAI has set national secondary drinking water standards (SMCLS) because they may cause cosmetic effects or aesthetic effects (such as taste, odor, and/or color) in drinking water. The contaminants with SMCLS normally do notl have any health effects andi normally do not affect the safety of your water.  Other Miscellaneous Water Characteristics Contaminants  Contaminant (units)  Sample Date 3/31/21  Water Your 7.05  Low Range High 6.7-7.3  SMCL 6.5to8.5  pH 12/2023