FAQ - Hagewood Water System Violation, 7-16-2024
July 16, 2024
FAQ:
1. Who sent this notice, and when did you receive it? A copy of the notification letter from
LDH, Chemical Compliance Engineer, is attached for your review. This letter was sent to the
Hagewood Water System (HWS) P.O. Box, signed for by Waskom, Brown, and Associate staff
(our accounting firm), and the HWS Board of Directors received an email copy of this letter
from our accounting office on July 11. We took immediate steps to discuss these findings with
our system operator, send a copy to the newspaper for posting, post it on our website, and
begin working on a notification letter to all consumers.
2. Is our water safe to drink? LDH states, in the letter: “This is not an emergency. If it had
been, you would have been notified immediately. EPA and LDH do not consider this violation to
have any serious adverse health effects on human health as a result of short-term exposure…”
3. Where was the test sample taken? DBP01 – POC 5. This is our test site on Posey Road.
4. What do we know about the TTHMs and HAA5 chemical levels that exceeded the MCL? The
limit on TTHMs (total trihalomethanes) is 80 parts per billion (ppb); this HWS test sample was
90 ppb. The limit for HAA5 (haloacetic acids) is 60 parts per billion (ppb); this HWS test sample
was 65 ppb. That's 5 parts per billion over the limit (example: 5 dollars out of one billion
dollars).
THMs and HAA5 are disinfection byproducts (DBPs) that can be found in drinking water when
chlorine or chloramine react with naturally occurring organic material.
THMs: When chlorine reacts with organic material like decaying vegetation in lakes or
reservoirs. THM formation is influenced by residence time, pH, and other factors.
HAA5: When chlorine or other disinfectants react with organic and inorganic matter in water.
Surface water sources like rivers, lakes, and streams are more likely to contain the organic
materials that combine with chlorine to form HAA5.
HWS water supply comes from our underground well, and is supplemented by the City of
Natchitoches. We have just added Sabine Waterworks as an additional supplement.
5. What steps has the Hagewood Water System (HWS) taken to help ensure compliance in the
future? Please be assured that we are following all reporting requirements to comply with LDH
directives. Additionally, we are working to lower the chlorine residual, flushing lines more
frequently, and recently completed a tie-in with Sabine Waterworks to supplement our wells.