The concentration of hexavalent chromium in the wells is far under the legal limit, but some regulators have pointed to health risks.
An EPA webpage states that hexavalent chromium poses longterm health risks when consumed in levels greater than the drinking water standard over many years.
The Texas Commission for Environmental Quality has classified more than 9,400 miles of streams and 638,000 acres of lakes in Texas as impaired.
San Antonio’s ozone levels have decreased in recent years, but they are still higher than a proposed new national standard announced in 2015.
On a Monday morning last November, the front row parking at Noah’s Event Venue was blocked off for public officials from the Texas Commission on Environmental Quality.
Local officials are doubling their efforts to tackle air quality in San Antonio.
City leaders say a collaborative effort is needed to help the San Antonio area stave off a costly non-compliance designation for new ozone air pollution standards.