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The original item was published from 3/1/2021 4:47:00 PM to 3/27/2021 12:00:00 AM.

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Posted on: March 1, 2021

[ARCHIVED] Tres Hermanos Conservation Authority Meetings

Image of reservoir on Tres Hermanos property

Tres Hermanos Conservation Authority Meetings Location Change

As part of the Tres Hermanos Conservation Authority’s biannual rotation of its administrative duties, the City has taken over responsibility for hosting the monthly regular meetings of the

Board of Directors meetings for the entirety of 2021 and 2022. The Tres Hermanos Conservation Authority is a joint powers authority formed in 2019 by the Cities of Chino Hills, Diamond

Bar, and Industry to work cooperatively to protect, conserve, and maintain the 2,445 acres of undeveloped open space located along the eastern edge of the city between Diamond

Bar and Chino Hills.

There are seven seats on the Authority Board that are filled by two Diamond Bar Council Members, two Chino Hills Council Members and three City of Industry Council Members.

Administrative duties are shared and rotated among member agencies every two years.

All regular Authority Board meetings are open to the public, and held the third Wednesday of each month at 6 p.m. at Diamond Bar City Hall. However, in accordance with the

Governor’s Executive Order, meetings are currently being held virtually with remote participation available online or by phone.

For more information on the Tres Hermanos Ranchos or to sign up to be notified by email or text when meeting agendas are posted online, visit


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