Public Restrictions after Biosolids Application Services in Washington

biosolids application services washington Are you preparing for biosolids application services on a piece of property you own in Washington? While utilizing biosolids for agricultural purposes is a safe, eco-friendly alternative to traditional chemical fertilizers, there are a number of rules and regulations you need to follow. Failure to adhere to state requirements can result in significant fines. One very important aspect is that you must block public access to the area after biosolids have been applied. The specifics vary depending on the situation, so keep the following details in mind.

Where Posting is Required

After biosolids application, ensure information is properly posted during the entire time that access to the site is restricted. This means that notice content must be visible at all significant access points to the impacted site. Additionally, information must be located every half mile around the entire perimeter.

Length of Time

The length of time public access must be restricted is based on the potential for public exposure. If the risk is considered high, restrictions must remain in place for at least a year. When the risk of potential public exposure is low, the site must remain restricted for 30 days.


Regulatory expectations regarding public access restrictions after the application of biosolids can also be approved by the Washington State Dept. of Ecology. In some cases, “No Trespassing” signs may be acceptable, but only if the Washington State Dept. of Ecology provides approval.

Interested in Biosolids Application Services in Washington?

Now that you know a little more about public access restrictions in Washington, you should be able to create a reasonable action plan. Visit Tenelco Inc. to schedule reliable and convenient service. Our company has been in the industry for years, has all the necessary permits and can help you navigate national and state regulations. In addition to application, you can count on our specialists for biosolids removal and biosolids transportation as well. Contact us today to learn more.

Biosolids Application Services Experts in Washington

Serving the Municipalities of Western Washington and the Farmers of Eastern Washington

Posted on November 30, 2020 | Published by Ignite Local | Related Local Business