Texas Register, Volume 12, Number 1, Pages 1-51, January 2, 1987 Page: 22
51 p. ; 28 cm.View a full description of this periodical.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
(e) Table V. The following table covers criteria for soil absorption of sewage effluent developed for site
specific evaluations:
TABLE V
CRITERIA FOR SOIL ABSORPTION OF SEWAGE EFFLUENT DEVELOPED FOR SITE SPECIFIC EVALUATIONS
Classification
Site Provisionally
Characteristic Suitable Suitable (1) Not Suitable
Topography Slopes 0-15% Slopes 15-30% Slopes greater than 30%
Complex slopes.
Subsoil Sandy soils, Clayey soils with low Clayey soils with high
Texture Loamy soils shrink-swell potential. Shrink-well potential.
Subsoil Angular or subangular Platy structure. Weathered
Structure blocky. rock. Massive clayey soils.
Soil Depth Weathered rock or Weathered bedrock or Weathered rock or
consolidated bedrock consolidated rock from consolidated bedrock less
greater than 48 inches 36 to 48 inches below than 36 inches below
below ground surface, ground surface ground surface.
Restrictive None within 36 inches Restrictive horizon within
Layer of the ground surface 36 inches of the ground
surface or below the trench
bottom.
Soil No drainage mottles Drainage mottles (chroma 2
Drainage within 36 inches of or less) within 36 inches of
the ground surface the ground surface.
Flooding
Areas subject to a 10-year
flood. Depressional areas
without adequate drainage.
Soil Greater than or Less than or equal to
Permeability 5Smin/inch but 5 min/inch or
less than or equal to greater than 60 min/inch.
60 min/inch. Unselective fill material
groundwater.
Soil may be reclassified from unsuitable to provisionally suitable under certain conditions using acceptable
site or system modifications.(f) Table VI. The following table covers absorption trench and bed sizing for
dwellings:single family residential
TABLE VI
AdSORPTION TRENCH AND BED SIZING FOR SINGLE FAMILY RESIDENTIAL DWELLINGS
Average Percolation Rate
(Minutes/Inch)Minutes Per Inch
Sewage Application Soil Texture
Rate, Ra (See USDA/SCS
Classifications)Inches Per Hour
Minimum Bottom Area
(Sq. Ft.) For a One
or Two Bedroom HouseGallons per Sq. Ft.
Per Day TrenchMinimum Bottom Area
For Each
Additional Bedroom
(Sq.Ft./Bedroom)Bed
Too Great for
ConsiderationSand/Gravel
Sandy Loam
Sandy Clay
Silty ClaySections on Alternative Systems
750 200
900 250
1125 30012 TexRe 22 January 2, 1987 Texa Register
Less Than 5
More Than 12
5 - 15
16 - 30
31 - 454 - 12
2-4
1.3-2Bed Trench
250
300
400-~--~--~O1- --~~~~ 1 11 ~~~ ~~~~ ~- 1~ ~~~) ~ ~~~~~~ ~~~'~~ ~ - -~~-UI---~ - L~~ ~ -~ ~ )-~~~~
Upcoming Pages
Here’s what’s next.
Search Inside
This issue can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Periodical.
Texas. Secretary of State. Texas Register, Volume 12, Number 1, Pages 1-51, January 2, 1987, periodical, January 2, 1987; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth243845/m1/22/: accessed April 24, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.