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Publication #SL96

St. Lucie County Area: Soil Ratings for Selecting Pesticides1

G.W. Hurt and T.A. Obreza2

RATINGS FOR ST. LUCIE 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 St Lucie 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 Natural Resources 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. Watts, F.C. and D.L. Stankey. 1980. Soil Survey of St. Lucie County Area, Florida. USDA/NRCS in cooperation with University of Florida, Institute of Food and Agricultural Sciences, Soil and Water Science Department and the Florida Department of Agriculture and Consumer Services.

ACKNOWLEDGEMENTS

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

Tables

Table 1. 

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

MUID

SYS NUM

MUSYM

SOIL NAME

SOIL LEACH

SOIL RUNOFF

613001 1 1 ANCLOTE High High
613002 1 2 ANKONA Low High
613003 1 3 ANKONA Low High
613003 2 3 URBAN LAND Medium High
613004 1 4 ARENTS High Medium
613005 1 5 ARENTS High Low
613006 1 6 ARENTS Low Low
613007 1 7 ASTATULA High Low
613008 1 8 BASINGER High High
613009 1 9 BEACHES High High
613010 1 10 CANAVERAL High Medium
613011 1 11 CHOBEE Low High
613012 1 12 ELECTRA Low Medium
613013 1 13 FLORIDANA Low High
613014 1 14 FLUVAQUENTS Low High
613015 1 15 HALLANDALE High High
613016 1 16 HILOLO Low High
613017 1 17 HOBE Medium Low
613018 1 18 HONTOON Low High
613019 1 19 JONATHAN Low Low
613020 1 20 KALIGA Low High
613021 1 21 LAWNWOOD Low High
613022 1 22 LAWNWOOD Low Medium
613022 2 22 URBAN LAND Medium High
613023 1 23 MALABAR Low High
613024 1 24 MYAKKA Medium High
613025 1 25 NETTLES Low High
613026 1 26 OLDSMAR Low High
613027 1 27 PALM BEACH High Low
613028 1 28 PAOLA High Low
613029 1 29 PENDARVIS Low Medium
613030 1 30 PENDARVIS Low Medium
613030 2 30 URBAN LAND Medium High
613031 1 31 PEPPER Low High
613032 1 32 PINEDA Low High
613033 1 33 PITS Medium Medium
613034 1 34 POMPANO High High
613035 1 35 POMPANO VARIANT High High
613035 2 35 KALIGA VARIANT Low High
613036 1 36 POPLE Low High
613037 1 37 RIVIERA Low High
613038 1 38 RIVIERA Low High
613039 1 39 SALERNO Low High
613040 1 40 SAMSULA VARIANT Low High
613040 2 40 MYAKKA VARIANT Medium High
613041 1 41 SATELLITE High Medium
613042 1 42 ST. LUCIE High Low
613043 1 43 SUSANNA Low High
613044 1 44 TANTILE Low High
613045 1 45 TERRA CEIA Low High
613046 1 46 TURNBULL VARIANT Low High
613047 1 47 URBAN LAND Medium High
613048 1 48 WABASSO Low High
613049 1 49 WABASSO VARIANT Low High
613050 1 50 WAVELAND Low High
613051 1 51 WAVELAND Low High
613051 2 51 LAWNWOOD Low High
613052 1 52 WAVELAND Low High
613052 2 52 URBAN LAND Medium High
613053 1 53 WELAKA VARIANT High Low
613054 1 54 WINDER Low High
613055 1 55 WINDER Low High
613056 1 56 WINDER VARIANT Low High
613057 1 57 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 St. Lucie County Area, 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, 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 SL96, 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.