Acute Aquatic Toxicity

Aquatic toxicity is measured by fish bioassay. A waste can be tested for this criterion by placing some waste in a test water tank and introducing one of three acceptable fish species: fathead minnows, rainbow trout or golden shiners.

Waste is hazardous by aquatic toxicity¹ if a 96-hour LC₅₀ is less than 500 mg/liter.

96-hour LC₅₀ < 500 mg/l = acute aquatic toxicity

For more information, here is the procedure for the acute aquatic toxicity bioassay per 22 CCR section 66261.24(a)(6).

References

¹ 22 CCR Section 66261.24(a)(6)