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Texas Land Application Permits: An Overview
AMANDA PIRANI, P.G. – WATER QUALITY ASSESSMENT TEAMWATER QUALITY DIVISION
OCTOBER 10, 2018AUTUMN ENVIRONMENTAL CONFERENCE AND EXPO
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Texas Land Application Permits (TLAP)
No discharge to waters of the state Types of TLAPs
Surface irrigation Subsurface irrigation Subsurface Area Drip Dispersal System (SADDS)
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Permit Application Forms
Domestic Wastewater Permit Application, Technical Reports – Form TCEQ-10054 Domestic Worksheet 3.0 – Land Application of Effluent
Domestic Worksheet 3.1 – Surface Land Disposal of Effluent
Domestic Worksheet 3.2 – Subsurface Land Disposal of Effluent
Domestic Worksheet 3.3 – Subsurface Area Drip Dispersal Systems
Instructions for Completing the Domestic Wastewater Permit Application – Form TCEQ-10053ins
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Groundwater Impact Evaluations
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Groundwater Impact Evaluations
Determine compliance with TCEQ rules and policies Determine whether the proposed land application activities have
the potential to impact groundwater Make recommendations for special provisions to the permit that will
be protective of groundwater quality
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Groundwater Impact Evaluations
Two Types of Evaluations Agronomy
Geology
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Agronomy Groundwater Impact Evaluations
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Agronomy Technical Requirements
Soils Crops Nitrogen requirement of crops Evapotranspiration rates Water balance
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Soil
Resources: Natural Resources
Conservation Service (NRCS) Web Soil Survey
Site visit
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Crops
Warm and cool season crop Yield goals Use of trees will requires an assessment by a certified arborist
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Crop Nitrogen Requirements
Resources AgriLife Extension Natural Resources
Conservation Service
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Evapotranspiration
Combined loss of water by evaporation from the soil surface and by transpiration from plants
Resource: Texas Board of Water Engineers, Bulletin 6019: Consumptive Use of Water by Major Crops in Texas
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Geology Groundwater Impact Evaluations
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Geology Technical Requirements
Water wells Aquifer Groundwater Information Surface water bodies, creeks, seeps, springs Geology Wastewater pond liners
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Water Well Resources
Texas Water Development Board Water Data Interactive Texas Commission on Environmental Quality USGS topographic maps Groundwater Conservation Districts Site visit Interview with property owner
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Aquifers Designated by the TWDB
Major Aquifers Minor Aquifers
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Groundwater
Depth to groundwater Groundwater uses Groundwater quality Well drillers’ logs Well plugging reports
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Surface Water Bodies, Creeks, Seeps, Springs
Resources USGS topographic
maps Aerial photographs Site visit
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GeologySources Geologic Atlas of
Texas TWDB Water Data
Interactive
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Wastewater Pond Liners
Wastewater holding and treatment ponds must be lined in accordance with 30 TAC §217.203 and 30 TAC §309.13(d)
Wastewater pond liners must certified by a Texas-licensed professional engineer
The certification must state that the liner meet the requirements of 30 TAC §217.203 and 30 TAC §309.13(d), if applicable
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Groundwater Quality Technical Report
Fully assess the impact of the wastewater disposal system on groundwater quality
Describe geology, groundwater, area wells, pond liners, best management practices such as buffers, wastewater application rate and any other practice designed to protect groundwater quality
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Special Note for Subsurface Irrigation
Domestic Worksheet 7.0 – Class V Injection Well Inventory/Authorization Form
Submit this form directly to the UIC Permits Team
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Applicable TCEQ Rules
213 – Edwards Aquifer 217 – Design Criteria for Domestic Wastewater Systems 222 – Subsurface Area Drip Dispersal Systems 309 - Domestic Wastewater Effluent Limitation and Plant Siting 311 - Watershed Protection
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Contact
TCEQ WATER QUALITY DIVISION(512) 239-4671