Clark County Public Health discovered Thursday that a company selling septic tank additives is calling local residents, claiming there is an alert about failing septic systems, and offering products to clean the systems.
Additives, which are commercial products, are sold with claims that they can improve performance or aesthetics of on-site sewer treatment systems.
“However, most additives do not have a positive effect on the operation of on-site systems and may, in fact, contaminate groundwater aquifers,” according to a health department press release.
The Washington State Department of Health has a list of approved on-site septic system additives that don’t have adverse effects on water quality or public health.
