Necessary, inc. has started to assemble a collection of documents to help our clients to assess their needs and help us help you. The items that indicated to be PDF documents require the Acrobat Reader by adobe. This application can be downloaded for free at the Adobe web site.
Operation and Maintenance Guide for Conventional Absorption On-site Sewage Facilities
O & M Guide for Mound Type On-Site Sewage Facilities
O & M Guide for Low Pressure Dosed Trench On-site Sewage Facilities
O & M Guide for On-site Sewage Facilities with Aerobic Treatment Units and Spray Irrigation
O & M Guide for On-site Sewage Facilities with Aerobic Treatment Units and Low Pressure Dosed Disposal Trenches
O & M Guide for Drip Emitter On-Site Sewage Facilities
Preparation of the On-Site Sewage Facility for Inspection
On-Site Sewage Facility Request for Evaluation/Certification
Request Records from Travis County
To get on-site sewage facility records from Travis County, complete this form and fax to 512-854-9436 OR send an email to firstname.lastname@example.org (be sure to include your fax number).
Request Records from Hays County
To get on-site sewage facility records from Hays County, complete this form and email it to email@example.com
Resources on the Web
Necessary, inc. has listed links to web sites that can provide additional infomation about On-site Sewage Facilities and regulations that might pertain to your system/location.
City of Austin Water Utility OSSF Program
The City's "Water Utility" was previously called the "Water and Wastewater Department"
LCRA's OSSF Program
Williamson Cities and County Health District
Williamson County On-Site Sewage Facilities Program
Hays County Environmental Health
Hays County On-Site Sewage Facilities Program
TCEQ (TNRCC) Onsite program
How to find a licensed OSSF installer or site evaluator
Texas AgriLife Extension (A & M Extension Service)
Excellent information and Fact Sheets.
EPA Onsite Manual
This link should give the latest version of the EPA Onsite Wastewater Treatment Systems Manual. Scroll down to "Manuals" and click on the link.
National Environmental Services Center (Small Flows Clearinghouse)
National On-site Wastewater Recycling Association
Travis Central Appraisal District - Property information for Travis County.
Williamson Central Appraisal District - Property information for Williamson County.
Bastrop County Tax Office
Property information for Bastrop County
Hays County Appraiser's Office
Hays Central Appraisal District