Welcome to BMA

Conservation Projects

Medina Reservoir was constructed from 1911-1912 as an irrigation reservoir. An extensive canal system delivers water by gravity flow to 33,000 acres of irrigated farmland below the Balcones escarpment around Castroville, La Coste, Natalia, and Devine.

Water Issues

BMA is well aware of problems facing the Reservoir system and will be posting educational information on our website. Water quality is a very important issue as it relates to the state water impounded by the Medina/Diversion Reservoir system.

Our History

Deeply Rooted in the Golden Valley of Medina

BMA’s history is fascinating. From the Medina Dam project, to the countless miles of irrigation canals, our story is embedded into our surrounding communities.

What’s New!

B.M.A. will frequently update our site with news and information regarding operations, meetings and any policy changes. If you have a story you would like to submit along with photos, please contact us. We would love to share your story!

August 3, 2021

Public Notice

Notice is hereby given that the Board Of Directors of the Bexar-Medina-Atascosa Counties WCID #1 will convene in a regular monthly board meeting on Monday, August 9th , 2021 AT 5:00 P.M. in the district office, located at 2107 State Highway 132, Natalia, Texas.
July 6, 2021

Public Notice

Notice is hereby given that the Board Of Directors of the Bexar-Medina-Atascosa Counties WCID #1 will convene in a regular monthly board meeting on Monday, July 12th , 2021 AT 5:00 P.M. in the district office, located at 2107 State Highway 132, Natalia, Texas.
June 8, 2021

Public Notice

Notice is hereby given that the Board Of Directors of the Bexar-Medina-Atascosa Counties WCID #1 will convene in a regular monthly board meeting on Monday,June 14th , 2021 AT 5:00 P.M. in the district office, located at 2107 State Highway 132, Natalia, Texas.
May 4, 2021

Public Notice

Notice is hereby given that the Board Of Directors of the Bexar-Medina-Atascosa Counties WCID #1 will convene in a regular monthly board meeting on Monday, May 10th , 2021 AT 5:00 P.M. in the district office, located at 2107 State Highway 132, Natalia, Texas.
April 7, 2021

Public Notice

Notice is hereby given that the Board Of Directors of the Bexar-Medina-Atascosa Counties WCID #1 will convene in a regular monthly board meeting on Monday, April 12th , 2021 AT 5:00 P.M. in the district office, located at 2107 State Highway 132, Natalia, Texas.
March 19, 2021

PUBLIC NOTICE – Harmful invasive species found at Medina Lake

https://www.ksat.com/news/local/2021/03/16/harmful-invasive-species-found-at-medina-lake-lake-placid-now-fully-infested-with-zebra-mussels/?fbclid=IwAR2zcrY-vwgkyGfaOekoLAr8KvYB-rLr2B1Wb0r2N_tM39V1jOTmHbn0xDI