On-Site Sewage Facilities (OSSF) are wastewater systems designed to treat and dispose of effluent on the same property that produces the wastewater. Most people know them as septic systems. Regular maintenance and inspection of OSSF protects public and environmental health, increases system longevity, and enhances private property use and value.

H-GAC offers various programs, workshops, and resources for real estate professionals, homeowners, and the public.

On-Site Sewage Facilities Data

Current On-Site Sewage Facilities (OSSF) data is available in an interactive OSSF mapping tool. view the locations of permitted ossf by age, authorized agent or permitting authority, number of permits per square mile, and likely locations for old or unpermitted OSSF.

Authorized Agents in the H-GAC Region

Area/Authorized Agent Designated Representative
Austin County Erica Resendez
979-865-5911 ext. 5110
979-530-6332
[email protected]
Brazoria County Jodie Vice
979-864-1708
979-864-1600
[email protected]
Chambers County Darla Branch
409-267-2702
[email protected]
City of Baytown James Garcia
281-420-5305
[email protected]
City of Beach City Darla Branch
409-267-2700
[email protected]
City of Brookside Village Robert Lira
281-485-3048
[email protected]
City of Huntsville Stacy Lawler
936-294-5763
[email protected]
City of Old River-Winfree Darla Branch
409-267-2702
[email protected]
City of Surfside Beach Joshua Hart
979-233-1531
[email protected]
Colorado County Richard Wessels
979-732-2435
[email protected]
Fort Bend County Christopher Bryson
281-342-7469
[email protected]
Galveston County Jennifer Peebler
409-938-2309
[email protected]
Grimes County Angela Schroeder
936-873-4495
[email protected]
Harris County Raymond Beckford
713-274-3854
[email protected]
Liberty County Melinda Soliday
936-336-4560 ext. 1660
[email protected]
Manvel Robert Lira
281-489-0630
[email protected]
Matagorda County Cris Cruz
979-244-2717
[email protected]
Montgomery County Keith Miles
936-538-8033
[email protected]
San Jacinto County Tarra Reynolds
936-653-3823
[email protected]
San Jacinto River Authority Wendy Delahoussaye
936-588-7145
[email protected]
Walker County Andrew Isbell
936-436-4939
[email protected]
Waller County Tonya Mewis
979-921-0391
[email protected]
Wharton County Monica Martin
979-532-8587
[email protected]

On-Site Sewage Facilities Fact Sheets

On-Site Wastewater Treatment Systems (46)
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Pollution Prevention (1)
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TCEQ OSSF Program COVID-19 General Guidance (1)
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OSSF Glossary of Terms (1)
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Homeowner Wastewater Assistance Program for OSSF Repair/Replacement

H-GAC has funding available for the repair and replacement of failing conventional septic systems or aerobic on-site sewage facilities. Funding is available to homeowners who meet certain income restrictions. No matching funds are required. For more information, please contact us at [email protected].

H-GAC Wastewater Assistance Program Flyer (PDF in English and Spanish)