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Wastewater

Weishuhn Engineering, Inc. has over 20 years of experience in wastewater design, permitting, installation and compliance pursuant to the Texas Pollution Discharge Elimination System rule (TPDES) (30 TAC 317) and the Onsite Sewage Facility Rule (OSSF or Septic) (30 TAC 285).


 TPDES

Domestic wastewater flows greater than 5,000 gallons per day and all industrial wastewater flows are subject to the Texas Pollution Discharge Elimination System (TPDES) rule. Domestic wastewater flows less than 5,000 gallons per day are subject to the Onsite Sewage Facility (OSSF) rule.  We can permit and design systems for surface water discharge or surface spray application.

Wastewater TPDES Clarifier Weishuhn Engineering
Clarifier
Wastewater TPDES Imhoff Tank
Imhoff Tank
Wastewater TPDES Biological Treatment Unit
Biological Treatment Unit
Wastewater TPDES Bar Screen
Bar Screen
Wastewater TPDES Outfall
TPDES Outfall
Wastewater TPDES Sludge Drying Bed
Sludge Drying Bed
Wastewater TPDES Membrane Bioreactor Unit
Membrane Bioreactor Unit
Wastewater TPDES Lift Station
Lift Station

Domestic TPDES Experience

  • Jordan Ranch, Engle, Texas
  • Pine Cove Corporation, Colorado County, Texas
  • Ellinger Sewer and Water Supply Corporation, Ellinger, Texas
  • Corix Camp Swift Treatment Plant Evaluation, Bastrop, Texas
  • Lone Star Jellystone RV Park Camp Resort, Hempstead, Texas
  • Exterran, Columbus Texas Facility
  • City of Fayetteville, Texas
  • Town of Round Top, Texas

Industrial TPDES Experience

  • Postive Feed, Inc. Sealy, Texas – WEI has been retained by the feed production company to conduct the semiannual monitoring and reporting required by their TPDES permit as well as to complete their TPDES renewals for their facility in Austin County Texas.
  • Bellville Tube/United State Steel, Bellville, Texas

OSSF

WEI focuses on designing, permitting and construction management of On Site Sewerage Facilities (OSSF) in Colorado, Fayette, Austin, Lavaca, Wharton and Waller counties, but has completed projects from central Texas to the Gulf Coast. Our projects range from residential projects rated for a few hundred gallons per day to commercial facilities rated for nearly the maximum limit of 5,000 gallons per day. Some of our larger projects include the following:

  • RB Ratcliffe & Associates Building Projects, Central Texas
  • SPJST Environmental Nature Center, Fayette County, Texas
  • Diversitech Corporation Manufacturing Facility, Domestic Wastewater flow, Columbus, Texas
  • Jordan Ranch converted to a TPDES system, Engle, Texas
  • Town of Round Top municipal treatment system converted to a TPDES system, Round Top, Texas
  • Delta Tubular, Houston, Texas
  • K&B Machine, Houston, Texas
  • St. Roch Catholic Church, Diocese of Victoria, Mentz, Texas
  • Chesapeake Oil Terminal Catarina, Texas

We are qualified to design, permit and install conventional septic systems, low pressure dose, mounded low pressure dose, aerobic with drip or spray disposal and sand filter based system.

Wastewater OSSF Standard Septic System using Leaching Chambers
Standard OSSF Trench Leaching Chambers
Wastewater OSSF Residential
OSSF Large Residential Standard Tanks
Wastewater OSSF Commercial Aerobic System
Commercial Aerobic System
Wastewater OSSF Commercial-Aerobic-Onsite-System
Commercial Aerobic System
Wastewater OSSF Chesapeake-Catarina-Oil-Terminal
Commercial Low Pressure Dose
Wastewater OSSF Commercial Low Pressure Dose
Commercial Low Pressure Dose
Wastewater ODDF Commercial Low Pressure Dose
Commercial Low Pressure Dose
Wastewater ODDF Commercial Aerobic System
Commercial Aerobic System

Commonly Asked Questions about OSSF Facilities

1. How do I get a standard, gravity flow, conventional wastewater system (also known as a septic tank and trench system)?
Must have household wastewater source at least 42-inch vertical profile of soils that do not exhibit signs of seasonal ground water and are not silty clay or clay; or spend a lot of money for an evapotranspirative bed system.

2. When do I need a low pressure dose system?
When silty clay or clay soils are present in the top 42-inch vertical profile and no signs of seasonal ground water are present.

3. Why do I need an aerobic with spray treatment system?
High strength wastewater from a restaurant or signs of seasonal ground water are present at depths less than 36-inch below ground sources.

Links

agrilifebookstore.org
Search Lesikar

Sample Publications:
B-6098 On-Site Wastewater Treatment Systems: Alternative Collection Systems
L-5227 Onsite Wastewater Treatment Systems: Septic Tank/Soil Absorption Field
B-6171 Onsite Wastewater Treatment Systems: Homeowner’s Guide to Evaluating Service Contract

Need a Project Consultation?

Let us help. Contact us for your project review.

Main Office 979-732-6997

weishuhnengineering@gmail.com

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Weishuhn Engineering, Inc.

WEI Staff, Family, and Friends gathered together around our banner outside our new office celebrating 26 years of service to our communities.
Celebrating 26 years of helping our communities, with all the friends and family we’ve made along the way outside our new office!

1008 Live Oak St, P.O. Box 358
Columbus, Texas 78934
Colorado County

Main Office 979-732-6997

We can work with you across Texas, but we are frequently in Austin county, Colorado county, Fayette county, Lavaca county, Lee county, Matagorda county, Waller county, & Washington county.

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