The Texas Well Owner Network, TWON, is hosting a water screening event for those residents that may have had their private water well inundated with flood waters during the July rainfall events. The screenings will be held on Sept. 15-16 in the San Angelo area.
Joel Pigg, Texas A&M AgriLife Extension Service program specialist and TWON coordinator, College Station, said the Texas Well Owner Network program is for Texas residents who depend on household wells for their water needs.
“The TWON program was established to help well owners become familiar with Texas groundwater resources, septic system maintenance, well maintenance and construction, and water quality and treatment,” he said. “It allows them to learn more about how to improve and protect their community water resources.”
Water samples will be screened for total coliform bacteria and E. coli bacteria.
Water sampling and meeting information
Water samples can be dropped off on Monday, Sept. 15 from 8:30-11a.m. at the AgriLife Extension office for Tom Green County, 113 W. Beauregard Ave., San Angelo; Runnels County AgriLife Extension office, 608 Sealy Ave., Suite A in Ballinger; Sterling County AgriLife Extension office, 609 4th Street, Sterling City; Irion County AgriLife Extension office, 209 North Parkview, Mertzon; Sterling County UWCD office, 612 4th Street, Sterling City; Irion County WCD office, 208 N. Park View, Mertzon.
There will be no cost for the water well screening.
The follow-up meeting to explain the results of the Runels County screening will be at 8:30 a.m. on Sept. 16 at the Runnels County AgriLife Extension Office, 608 Sealy Ave., Suite A in Ballinger.
The follow-up meeting to explain the results for Tom Green, Irion, and Sterling counties’ screenings will be at 1 p.m. on Sept. 16 at the Tom Green County AgriLife Extension Office, 113 W. Beauregard Ave., in San Angelo.
Sampling instructions
A water sample form must be completed for each sample submitted. Follow the directions below for sample collection. Visit twon.tamu.edu for a printable version of the collection instructions and the sample information sheet.
• Pour the contents out of a new bottle of water, 12-20 ounces, and fill it with a water
sample from your private water well.
• Take the sample from the spigot/hose bib nearest to the wellhead. Remove the water
hose if one is present and take the water directly from the spigot/hose bib.
• If an inside faucet is used, remove the aerator on the faucet before making the
collection. Rinse and dry the exterior of the faucet to prevent contamination of the
water sample.
• If possible, wipe off with a Clorox-type towelette or paper towel wetted with a light
bleach solution to kill any bacteria present on the faucet. Allow the cleaning solution
to dry before sampling.
•Turn the water full force and let it run for 2 minutes or until you hear the pump start
running.
•Reduce the water flow to a small stream, then take the sample.
Refrigerate the sample and transport it to the drop-off location in an ice chest as soon after collection as possible. It is best to collect the day the sample is submitted. Otherwise, make sure the sample is kept cool and out of direct sunlight. The sample should be collected within 24 hours of submission to ensure accurate results.
Well water contaminants, concerns
Joel Pigg, AgriLife Extension program specialist, Bryan-College Station, said research shows the presence of E. coli bacteria in water indicates that waste from humans or warm-blooded animals may have contaminated the water. Water contaminated with E. coli is more likely to also have pathogens that can cause diarrhea, cramps, nausea or other symptoms.
The presence of nitrate-nitrogen in well water is also a concern, and water with nitrate-nitrogen at levels of 10 parts per million is considered unsafe for human consumption, he said.
“These nitrate levels above 10 parts per million can disrupt the ability of blood to carry oxygen throughout the body, resulting in a condition called methemoglobinemia,” Pigg said. “Infants less than 6 months of age and young livestock are most susceptible to this.”
Salinity, as measured by total dissolved solids, will also be determined for each sample, he said. Water with high levels may leave deposits and have a salty taste. Using water with high levels for irrigation may damage soil or plants.
“We encourage you to bring samples from all wells on your property,” Pigg said. “Also, many participants who have water treatment equipment take samples before and after the treatment to make sure the equipment is functioning properly.”
Each sample should be labeled with your name, and if you bring more than one sample, the label should indicate which well the sample came from.
Pigg said it is essential for those submitting samples to be at the appropriate follow-up meeting to receive results, learn corrective measures for identified problems and improve their understanding of private well management.
To learn more about the programs offered through the network or to find additional publications and resources, visit twon.tamu.edu. For more information on the water screening contact Pigg at 830-275-3866 or j-pigg@tamu.edu.
The screenings are presented by AgriLife Extension and Texas Water Resources Institute, TWRI, in partnership with the AgriLife Extension offices in Tom Green, Sterling, Irion and Runnels counties. Additional support provided by the Sterling County Underground Water Conservation District and the Irion County Water Conservation District.
Funding for TWON is through a Clean Water Act nonpoint source grant provided by the Texas State Soil and Water Conservation Board and the U.S. Environmental Protection Agency. The project is managed by TWRI, a Texas A&M AgriLife Research unit that combines expertise across The Texas A&M University System.
