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Publication #SL92

Pasco County: Soil Ratings for Selecting Pesticides1

G.W. Hurt and T.A. Obreza2

RATINGS FOR PASCO COUNTY SOILS FOR PESTICIDE SELECTION

Resource soil scientists with the U. S. Natural Resources Conservation Service have rated the soils that are delineated by map units in the Pasco County Soil Survey Report2 for their potential for leaching and runoff of pesticides. The rating criteria are given in a companion publication entitled "Soil Ratings for Selecting Pesticides for Water Quality Goals." These soil ratings have been developed to help pesticide users determine the potential for pesticides to be lost to groundwater or surface water bodies.

As explained in Circular 9591, factors that determine pesticide leaching ratings in soil are permeability and the occurrence of mucky layers in the upper 80 inches of the soil. Soils rated High have a high potential for pesticides to leach to groundwater, soils rated Medium have a medium potential for pesticides to leach to groundwater, and soils rated Low have a low potential for pesticides to leach to groundwater. Factors that determine pesticide runoff ratings from soils are hydrologic group, permeability, and slope. Soils rated High have a high potential for pesticide runoff, soils rated Medium have a medium potential for pesticide runoff, and soils rated Low have a low potential for pesticide runoff.

NOTE: The user may discover that one or more map unit names in Table 1 have been updated from names given in the legend of the soil survey report2. For example, a soil map unit may be listed in the survey report with a single soil series name, whereas the same soil map unit is shown as comprising two or more soil series in Table 1 (sequence numbers 1, 2, 3, ..) Where this occurs, the user should use the multi-named map unit given here, and make pesticide selections based on the most limiting condition to be found on the land in question. If necessary, the local Soil Conservation Service office should be contacted to perform an on-site evaluation of the land in question.

REFERENCES

  1. Obreza, T.A. and G. W. Hurt. 2006. Soil Ratings For Selecting Pesticides For Water Quality Goals. Circular 959, Soil and Water Science Department, Cooperative Extension Service, University of Florida, Gainesville, Florida, 32611. 5pp.

  2. Stankey, D.L. 1982. Soil Survey of Pasco County, Florida. USDA/NRCS in cooperation with University of Florida, Institute of Food and Agricultural Sciences, Agricultural Experiment Stations, Soil and Water Science Department and the Florida Department of Agriculture and Consumer Services.

ACKNOWLEDGMENTS

The development of this document was supported by the USDA/ES Water Quality Initiative Project # 89EWQI-1-9134.

Tables

Table 1. 

Soil Ratings for Pasco County (see footnotes for explanations of column headings).

MUID

SYS NUM

MUSYM

SOIL NAME

SOIL LEACH

SOIL RUNOFF

101001 1 1 WAUCHULA Medium High
101002 1 2 POMONA Low High
101003 1 3 PINEDA Low High
101004 1 4 FELDA Medium High
101005 1 5 MYAKKA Medium High
101006 1 6 TAVARES High Low
101007 1 7 SPARR Medium Medium
101008 1 8 SELLERS Medium High
101009 1 9 ONA Medium High
101010 1 10 VERO Low High
101011 1 11 ADAMSVILLE High Medium
101012 1 12 ASTATULA High Low
101013 1 13 CANDLER High Low
101014 1 14 CANDLER High Low
101015 1 15 TAVARES High Low
101015 2 15 URBAN LAND High Low
101016 1 16 ZEPHYR Low High
101017 1 17 IMMOKALEE Medium High
101018 1 18 ELECTRA VARIANT Low Medium
101019 1 19 PAOLA High Low
101020 1 20 ARIPEKA Medium Medium
101021 1 21 SMYRNA Medium High
101022 1 22 BASINGER High High
101023 1 23 BASINGER High High
101024 1 24 QUARTZIPSAM High Low
101025 1 25 JONESVILLE Medium Low
101026 1 26 NARCOOSSEE Medium Medium
101027 1 27 ANCLOTE High High
101028 1 28 PITS Medium Medium
101029 1 29 LACOOCHEE Low High
101030 1 30 OKEELANTA Medium High
101030 2 30 TERRA CEIA Medium High
101031 1 31 UDALFIC ARENTS Medium Medium
101031 2 31 URBAN LAND Medium High
101032 1 32 LAKE High Low
101034 1 34 POMPANO High High
101035 1 35 EAUGALLIE Medium High
101036 1 36 CANDLER High Low
101036 2 36 URBAN LAND High High
101037 1 37 PAOLA High Low
101037 2 37 URBAN LAND High High
101038 1 38 URBAN LAND Low High
101039 1 39 CHOBEE Low High
101040 1 40 PAISLEY Low High
101041 1 41 PITS High Medium
101041 2 41 DUMPS High Medium
101042 1 42 POMELLO Medium Medium
101043 1 43 ARREDONDO Medium High
101044 1 44 ARREDONDO Medium High
101045 1 45 KENDRICK Medium High
101046 1 46 CASSIA Medium Medium
101047 1 47 WEEKIWACHEE Medium High
101048 1 48 LOCHLOOSA Low Medium
101049 1 49 BLICHTON Low High
101050 1 50 BLICHTON Low High
101051 1 51 BLICHTON Low High
101052 1 52 SAMSULA Medium High
101053 1 53 SPARR Medium Medium
101054 1 54

FLEMINGTON VARIANT

Low High
101055 1 55 HOMOSASSA Medium High
101056 1 56 EAUGALLIE Medium High
101056 2 56 URBAN LAND Medium High
101057 1 57 VERO VARIANT Low High
101058 1 58 TOMOKA Medium High
101059 1 59 NEWNAN Medium Medium
101060 1 60 PALMETTO Low High
101060 2 60 ZEPHYR Low High
101060 3 60 SELLERS Medium High
101061 1 61 POMPANO Medium High
101062 1 62 KENDRICK Medium High
101063 1 63 DELRAY Medium High
101064 1 64 NOBLETON Low Medium
101065 1 65 GAINESVILLE High Low
101066 1 66 MICANOPY Low Medium
101067 1 67 KANAPAHA Low High
101068 1 68 LAKE High Low
101069 1 69 MILLHOPPER Low Low
101070 1 70 PLACID High High
101071 1 71 ANCLOTE Medium High
101071 2 71 TAVARES High Low
101071 3 71 POMELLO High Medium
101072 1 72 ORLANDO High Low
101073 1 73 ZOLFO Medium Medium
101074 1 74 CANDLER VARIANT High Low
101075 1 75 BEACHES High High
101076 1 76 BESSIE Low High
101W 1 W WATER
Footnotes:
MUID = Natural Resources Conservation Service's map unit identifier.
SEQ NUM = Sequence Number, indicating a particular soil name among one or more names constituting a map unit name.
MUSYM = Map Unit Symbol from the soil map and legend in the Soil Survey of Pasco County, Florida. Note that if a MUSYM appears more than once in this list it signifies that two or more soils are co-dominant in that map unit, and each such soil is rated separately here.
SOIL NAME = Name of soil or other landscape component (urban land, pits, dumps, beaches, water, etc.).
SOIL LEACH = The rating of the soil for leaching of pesticides through the soil profile.
SOIL RUNOFF = The rating of the soil for runoff of pesticides from the soil surface.
NOTE: See "Soil Ratings for Selecting Pesticides for Water Quality Goals" (IFAS Extension Circular 959) for explanations of the criteria used to develop soil ratings presented in the right-hand four columns of this list.

Footnotes

1.

This document is SL92, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: April 1991, revised September 2006. Reviewed June 2013. Please visit the EDIS website at http://edis.ifas.ufl.edu.

2.

G.W. Hurt, National Leader for Hydric Soils, Natural Resources Conservation Service, USDA; T.A. Obreza, Professor, Soil and Water Science Department, University of Florida, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.


The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county's UF/IFAS Extension office.

U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension.