Environmental Information
As the largest base organization in the Department of Defense, Joint Base San Antonio comprises multiple military locations including JBSA-Lackland, JBSA-Fort Sam Houston and JBSA-Randolph. As stewards of our environment, we are committed to keeping our community informed of local environmental policies and issues, and of our efforts toward making a greener military. For more information, click here.

 JBSA Environmental 1 Team, Goal, Earth Logo
Operation/Training Noise Concerns

Flying Operations

As the largest Department of Defense base organization, Joint Base San Antonio operates multiple busy airfields across San Antonio. We understand our flying operations sometimes affect our neighbors and we work hard to minimize any adverse impact without compromising safety. Flight patterns are designed to reduce over-flights of populated areas and therefore reduce the noise disturbance to residents.

JBSA is home to multiple flying units including the 433rd Airlift Wing, also known the "Alamo Wing," the 149th Fighter Wing and the 12th Flying Training Wing. These units provide both real-world and training operations that are integral to the support of worldwide defense operations.

For safety reasons, pilots are required to fly within pre-set corridors established by the Federal Aviation Administration. Although flying missions are conducted within these corridors, most flying operations are done over sparsely populated areas. Flying altitudes and flight patterns designed to minimize the effect of noise on surrounding communities.

Military aircraft have high-thrust engines, and several flight paths cross over the local area around San Antonio, which means some area residents will hear noise generated from flying activities. Atmospheric conditions such as temperature, winds and humidity also have a significant impact on the level of noise generated by aircraft operations. Cloudy weather can increase noise levels as sounds reverberate off the clouds, emitting louder than normal levels. Certain weather conditions also require pilots to adjust take-off directions and flight paths. Seasonal changes like daylight savings time also affect departure and arrival times.

While JBSA leaders cannot participate in the local civic decision-making process, we work to identify development proposals that may not be compatible with our military training missions. Base leaders are committed to providing information about our operations to government leaders, community planners, developers and concerned citizens so they can make informed development decisions.

We are aware of the environmental impact our operations may cause and strive to minimize public inconvenience. We do not like to disturb those whom we are sworn to defend, so we continually balance the necessity for realistic training against the desire to be a good neighbor.

Small Arms/Explosive Ordnance Training

Residents near JBSA training areas may periodically hear noise from the small arms training ranges or blasts from explosive ordnance training. If you hear blasts and are unsure whether or not it is associated with training at JBSA, please contact your location's appropriate public affairs office.


Consumer Confidence Report

The CCR, or Consumer Confidence Report, is an annual report that summarizes the quality of the drinking water provided to our customers. Each year, Bioenvironmental Engineering (BE) and Civil Engineering (CE) are required to conduct water sample analysis/tests as part of U.S. Environmental Protection Agency (EPA) requirements. These collected samples are analyzed by state certified labs and are validated by Texas Commission of Environmental Quality as well as BE and CE water program managers. These water sampling requirements and the respective analysis results are provided in the CCR.

The most recent JBSA CCR's are available below:


2019 JBSA-Randolph CCR

2019 JBSA-Lackland CCR

2019 JBSA-Medina (Chapman Annex) CCR

2019 JBSA-Fort Sam Houston CCR

2018 JBSA-Randolph CCR

2018 JBSA-Lackland CCR

2018 JBSA-Medina CCR

2018 JBSA-Fort Sam Houston CCR

2017 JBSA-Randolph CCR

2017 JBSA-Lackland CCR

2017 JBSA-Medina CCR

2017 JBSA-Fort Sam Houston CCR


JBSA Water Restrictions

Contact the JBSA Water Conservation Manager at 210-671-5337 or 210-671-6082 or 210-671-2902 or by email at 502CES.CENPE.EnergyMgmt@us.af.mil for questions about water restrictions on JBSA.

All voicemails and emails must include subject header titled “Water Restrictions,” and shall also include address/location and contact information within the body of the reporting email and/or voicemail. 

JBSA Info for Home Buyers

Joint Base San Antonio publishes information for potential home buyers in the area in the form of Air Installations Compatible Use Zones (AICUZ) Studies and Joint Land Use Studies (JLUS).

The most recent versions of the documents are consolidated by the Alamo Area Council of Governments.