In response to the ongoing health threat from COVID-19, the Office of Water Programs continues to work remotely and we have suspended in-person customer access to the office.

The Office of Water Programs continues to offer all of our products and services as we protect the health of our customers and staff through remote work and alternative work schedules. We strive to provide the same quality of service you've come to expect from OWP, but please allow more time to process orders and respond to requests and questions. We are not conducting in-person or walk-in business at our office, but we are taking orders and responding to requests and questions via phone and email.

We appreciate your continued patience as we continually adjust our operations to this unprecedented situation. We may be unable to answer our phones from time to time, but we will respond to voice messages as soon as possible. You may also contact us online.

Research
Stormwater
Toxicity Testing

Toxicity Testing

Description

Stormwater discharges can cause toxicity concerns that may impact aquatic species and the general ecology of receiving waters. There are various methods for testing toxicity of stormwater runoff, including those specified by the United States Environmental Protection Agency. OWP research staff have provided assistance with conducting and reviewing data associated with such tests.

Experience

Caltrans Aquatic Toxicity Testing