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!

January 5, 2016

Public Notice

PUBLIC NOTICE JANUARY 5, 2016 NOTICE IS HEREBY GIVEN THAT THE BOARD OF DIRECTORS OF THE BEXAR-MEDINAATASCOSA COUNTIES WCID #1 WILL CONVENE IN A REGULAR MONTHLY BOARD MEETING ON MONDAY. […]
December 14, 2015

Public Notice

PUBLIC NOTICE DECEMBER 8, 2015 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, […]
December 9, 2015

Medina Lake OSSF updated study by URS

In 2004 URS carried out a study for the Bexar Medina Atascosa Water District (BMA) in order to identify properties which were likely to have on-site sewage facilities (OSSFs). These properties, if built after 1997 would be required to comply with regulation governing the construction and maintenance of OSSFs in Texas. The study was commissioned following a rise in fecal coliform levels in Medina Lake and concern from BMA that OSSFs were a potential source of contamination of the lake.
November 25, 2015

Septic System Pollution Contributes to Disease Outbreaks

WEDNESDAY, 25 NOVEMBER 2015 13:18 More research and funding is needed to help understand the severity By Brett Walton Circle of Blue Drip by drip, septic systems, both faulty units […]
November 4, 2015

Ecosystems Are Dying as Long Island Contends With a Nitrogen Bomb

WEDNESDAY, 04 NOVEMBER 2015 05:00 Septic systems and nitrogen pollution are killing the island’s marine heritage By Brett Walton Circle of Blue Thousands of dead bunker fish and hundreds of […]
October 15, 2015

America’s Spreading Septic Threat

Thursday, 15 October 2015 05:00 Failing septic systems produce disease outbreaks, algae blooms, and ecosystem damage. By Brett Walton Circle of Blue There are 123 million households in the United […]