Obviously, discharging "dark and murky" polluted water is bad. But some of the figures from the lab report don't seem that terrible:
* Hexavalent chromium at 0.0104 milligrams per liter, just above the lab’s reporting limit of 0.01 mg/L. Hexavalent chromium is classified as a known human carcinogen by the US National Toxicology Program. It is the substance the Erin Brockovich case was built around.
* Arsenic at 0.0025 mg/L. That is below the federal drinking water standard of 0.01 mg/L, but present.
The hexavalent chromium is also just barely above the California drinking water standard [1]
* Hexavalent chromium at 0.0104 milligrams per liter, just above the lab’s reporting limit of 0.01 mg/L. Hexavalent chromium is classified as a known human carcinogen by the US National Toxicology Program. It is the substance the Erin Brockovich case was built around.
* Arsenic at 0.0025 mg/L. That is below the federal drinking water standard of 0.01 mg/L, but present.
The hexavalent chromium is also just barely above the California drinking water standard [1]
[1] https://www.waterboards.ca.gov/drinking_water/certlic/drinki...