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Pasco County: Soil Ratings for Selecting Pesticides1
G.W. Hurt and T.A. Obreza2RATINGS 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
- 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.
- 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. Please visit the EDIS Web site 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 extension publications, contact your county Cooperative Extension service.
U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean.
Copyright Information
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