Shadybrook Reservoir Algae and Lakeweed Treatments
Per our Aquatic Pesticide Application Plan (APAP) we are required to notify the public at the beginning of the treatment season. Please see below for information related to the treatment:
How can residents obtain information on the application locations for a particular day?
Residents can contact our District office at 209-586-3172 for information on application locations for a particular day.
Statement of Intent to Apply Algaecide or Aquatic Herbicides
Twain Harte CSD intends on using Seclear in conjunction with mechanical removal to limit chemical usage.
What is the name of the Algaecide and Aquatic Herbicide?
The name of the Algaecide and Aquatic Herbicid is Seclear.
Purpose of Use
The purpose of use is to prevent the growth of nuisance algae and lakeweed that leads to foul taste and odors.
What is the general time period and locations of expected use?
Spring is the beginning of treatment season or when the water reaches 15 degrees Celsius. The District will generally apply treatment the second week of each month during treatment season at both the upper and lower Shadybrook Reservoirs.
Are there any water use restrictions or precautions during treatment?
No use of water for 48 hours after application
No Drinking
No Swimming
No Fishing
No Irrigation
For additional information
Please contact the District office at 209-586-3172.
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Website Accessibility Policy
Twain Harte Community Services District is fully committed to providing accessible facilities, elements and
channels of communication to all members of the public. As part of this commitment, Twain Harte Community Services District
has a policy of providing an accessible website compatible with the Web Content Accessibility Guidelines (WCAG 2.1) and
commercial screen reading software. All features of the website are coded to allow individuals with vision and
other impairments to understand and use the website to the same degree as someone without disabilities. We welcome
feedback and can often resolve issues in a timely manner if they arise.
If you need any special assistance or accommodations:
Twain Harte Community Services District has designated a compliance officer for website disability-related accommodations.
The compliance officer has received training in website accessibility and updates the site in accordance with those best
practices. Contact our accessibility officer to report an issue.
Compliance Procedures and Reports
In addition to testing with users with a wide range of disabilities and coding our website to WCAG standards,
Twain Harte Community Services District regularly scans its website to ensure ongoing compliance, and makes timely
changes to any inaccessible changes, if any are found.
Linked Documents and Third Parties
Please note that this site may link out to third-party websites, such as state or federal agencies, that do
not have accessible content. This site may also include documents provided by third parties included in our
agenda packets, for example. While we cannot control the accessibility of content provided by third parties,
we are happy to assist any member of the public with reading and accessing content on our site.
