Wake County Environmental Services is pleased to be able to offer a wide range of water sample analysis to Wake County residents. All well owners should sample their well water regularly to ensure that their water is and remains safe for drinking.
Wake County offers the following types of water analysis:
These samples can be self-collected by citizens and submitted directly to the ES lab, or Wake County staff can collect. A $50 trip fee is charged if Wake County collects.
Type of Analysis
Coliform Bacteria
Total and fecal coliform bacteria are indicators of the potential presence of disease-causing bacteria in water.
Iron Bacteria
Nuisance bacteria that can cause problems with well performance.
Sulfur Bacteria
Nuisance bacteria that can cause problems with water odor.
Full Inorganic Panel
Includes Alkalinity, Chloride, Fluoride, Hardness, Nitrate, Nitrite, pH, Arsenic, Barium, Cadmium, Calcium, Chromium, Copper, Iron, Lead, Magnesium, Manganese, Mercury, Selenium, Silver, Sodium, and Zinc.
Single Analyte
These samples can only be collected by Wake County staff. Requires payment of  $50 trip fee. Only one trip fee is charged per sampling trip.
Volatile Organic Compounds
Chemical compounds found in petroleum products or solvents.
Gross Alpha
For well users with concerns about radiological contaminants, Wake County recommends first screening with the Gross Alpha test. If high levels of Gross Alpha radiation are found, additional radiological tests for radium and uranium should be performed to determine the type of contaminant present and appropriate method for treating the water.
Radium 226
Radium 228
Drinking water testing for radon is recommended if indoor air testing finds very high levels of radon.
 *Discounted well sampling and analysis fees are available for lower-income residents. Please contact Wake County Environmental Services at 919-856-7400, option 8, for more information.
If you have questions about which tests you need, call Wake County's hydrogeologist at 919-856-7456.
If you are ready to have your well sampled and would like for a Wake County Environmental Services Employee to collect water samples for you, please call 919-856-7400, option 8, to speak to a staff member.
If you would like to do your own sampling, you may do so by obtaining sample containers at:
  • Wake County Lab (map)
    10 Sunnybrook Road, Ground Floor, Room G-80, Raleigh
    Monday–Friday, 8:30 a.m.–5:15 p.m.
    Phone 919-250-4441

  • Southern Regional Center (map)
    130 N. Judd Parkway NE, Fuquay-Varina
    Monday–Friday, 8:30 a.m.–5:15 p.m.
    Phone 919-557-2501

  • Eastern Regional Center (map)
    1002 Dogwood Drive, Zebulon
    Monday–Friday, 8:30 a.m.–5:15 p.m.
    Phone 919-404-3900

  • Northern Regional Center (map)
    350 E. Holding Ave., Wake Forest
    Monday–Friday, 8:30 a.m.–5:15 p.m.
    Phone 919-562-6300

  • Wake County Department of Environmental Services (map)
    336 Fayetteville St., Raleigh
    Monday–Friday, 8:30 a.m.–5:15 p.m.
    Phone 919-856-7400

Please return samples with payment to the Wake County Lab, located at 10 Sunnybrook Road in Raleigh (Sampling Fees).The Lab accepts samples from 8:30 am to 5:00 pm Monday through Wednesday and 8:30 am to 4:00 pm on Thursday. The Lab does not accept bacteriological samples on Fridays or the day before a holiday and only accepts payment by check or cash in the exact amount.


Homeowner/Resident Steps for Collecting Samples for Analysis:

  1. Determine the type of water sample you need (IF YOU NEED ASSISTANCE DETERMINING THE TYPE OF SAMPLES YOU NEED, PLEASE CONTACT 919-856-7400).
  2. Obtain approved sampling container(s) from Wake County.
  3. Collect a sample of water directly from the source (i.e., well head) into the water sample container. Be sure that all provided procedures are followed to ensure a valid analysis. If unable to collect the sample directly at the well head, use a spigot that bypasses any filtration system on the home. Once the sample is collected, it should be taken to the County Lab within 24 hours. We recommend keeping the Bacteriological and Nitrate samples refrigerated.
  4. Bacteriological samples must be delivered to the laboratory the same day they are collected.
  5. Fill out the appropriate paperwork for the desired water test(s).