2

Caloosahatchee Monitoring Project Report 

January 2007 

Introduction 

All the analytical work was performed by the Florida Department of Environmental 

Protection (FDEP) Central Laboratory in Tallahassee, Florida. Analytical method details 

can be found at the following location: http://www.dep.state.fl.us/labs/cgibin/sop/chemsop.asp. 

To evaluate the potential impacts on aquatic life, the observed concentration is compared 

to the appropriate criterion outlined in Florida Administrative Code (FAC) 62-302.530. 

If a pesticide compound is not specifically listed, acute and chronic toxicity criteria are 

calculated as one-third and one-twentieth, respectively, of the amount lethal to 50% of 

the test organisms in 96 hour, using the lowest technical grade EC50 or LC50 reported in 

the summarized literature for the specie significant to the indigenous aquatic community 

(FAC 62-302.200). Each pesticide’s description and possible uses and sites of 

application described herein are taken from Hartley and Kidd (1987). This summary 

covers samples collected during 2006. One hundred and seven samples were analyzed 

from nine sites. 

Pesticides 

Results 

The concentrations of the pesticides detected at each of the sites (Figure 1), are 

summarized for the surface water in Table 1. The detected concentration of aldicarb 

could cause impacts to the macroinvertebrate and selected fish populations. With the 

exception of aldicarb, the detected concentrations were similar to the historical South 

Florida Water Management District data collected at the Townsend Canal (SR80 bridge) 

(Table 2), upstream of S79 (Table 3), and S78 (Table 4). Carbamate analysis is not part 

of the Districts current monitoring program. Previous analytical protocols resulted in a 

significantly higher minimum detection limit. The revised analytical method used in this 

program has an order of magnitude lower detection limit. 

Usage and Water Quality Impacts 

2,4-D 2,4-D is a selective systemic herbicide used for the post-emergence control of 

annual and perennial broad leaf weeds in terrestrial (grassland, established turf, 

sugarcane, rice, and on non-crop areas) as well as aquatic areas. Environmental fate and 

toxicity data in Tables 5 and 6 indicate that 2,4-D (1) has minimum loss from soil by 

surface adsorption, with a moderate loss by leaching and surface solution; (2) is slightly 

toxic to mammals and relatively non-toxic to fish; and (3) does not bioaccumulate 

significantly. 2,4-D was only detected four times, twice at 833-Whidden and once at 

both Crawford and Townsend Canals. The highest 2,4-D concentration detected (19 

micrograms per liter [μg/L] at Crawford Canal) should not have an acute impact on fish 

or aquatic invertebrates. 
3

Aldicarb: Aldicarb is a restricted use systemic insecticide registered for use on citrus, 

potatoes, and sugarcane. Environmental fate and toxicity data in Tables 5 and 6 indicate 

that aldicarb (1) has minimum loss from soil by surface adsorption, with a moderate loss 

by surface solution and is easily lost from soil by leaching; (2) is toxic to mammals and 

relatively toxic to fish; and (3) does not bioaccumulate significantly. The only aldicarb 

concentration detected (5.0 μg/L at 833-Whidden) is greater than the calculated chronic 

toxicity for the water flea (Daphnia magna) and bluegill (Lepomis macrochirus). At this 

level, long term exposure can cause impacts to macroinvertebrate and selected fish 

populations. However, the pulsed nature of agricultural runoff releases to the drainage 

system precludes drawing any conclusions about the effects of long-term exposures. 

Ametryn: Ametryn is a selective terrestrial herbicide registered for use on sugarcane, 

bananas, pineapple, citrus, corn, and non-crop areas. Most algal effects occur at 

concentrations > 10 μg/L (Verschueren, 1983). Environmental fate and toxicity data in 

Tables 5 and 6 indicate that ametryn (1) is lost from soil relatively easily by leaching, 

surface adsorption, and in surface solution; (2) is relatively non-toxic to mammals and 

fish; and (3) does not bioconcentrate significantly. Additional fish toxicity datum 

includes a 96-hour LC50 of 14.1 milligrams per liter (mg/L) for goldfish (Hartley and 

Kidd, 1987). Ametryn was detected 16 times, with the majority of detections occurring 

at the C-19 Canal site. The highest ametryn surface water concentration found was 0.040 

μg/L (C-19 Canal). Using these criteria, these observed surface water levels should not 

have an acute or chronic effect on fish or aquatic invertebrates. 

Atrazine: Atrazine is a selective systemic herbicide registered for use on pineapple, 

sugarcane, corn, rangelands, ornamental turf and lawn grasses, and non-crop areas. 

Environmental fate and toxicity data in Tables 5 and 6 indicate that atrazine (1) is easily 

lost from soil by leaching and in surface solution, with moderate loss from surface 

adsorption; (2) is relatively non-toxic to mammals and fish; and (3) does not 

bioconcentrate significantly. Additional fish toxicity data include a 96-hour LC50 of 76 

mg/L for carp, 16 mg/L for perch and 4.3 mg/L for guppies (Hartley and Kidd, 1987). 

Also, in a flow-through bioassay, the maximum acceptable toxicant concentration 

(MATC) of atrazine was 90 and 210 μg/L for bluegill and fathead minnow (Verschueren, 

1983). The draft ambient aquatic life water quality criterion identify a one-hour average 

concentration not to exceed 1,500 μg/L more than once every three years on the average 

(USEPA, 2003). Atrazine was detected in all but six samples. The highest atrazine 

surface water concentrations found was 1.9 μg/L (C-3 Canal). Using these criteria, these 

observed surface water levels should not have an acute or chronic detrimental impact on 

fish or invertebrates. 

Bromacil: Bromacil is a terrestrial herbicide registered for use on pineapple, citrus, and 

non-crop areas. Environmental fate and toxicity data in Tables 5 and 6 indicate that 

bromacil (1) is easily lost from soil by leaching, with moderate loss from surface 

adsorption or surface solution; (2) is relatively non-toxic to mammals and fish; and (3) 

does not bioconcentrate significantly. Additional fish toxicity datum includes a 96-hour 

LC50 of 164 mg/L for carp (Hartley and Kidd, 1987). Bromacil was detected 41 times. 
4

The highest concentration of bromacil detected in the surface water was 6.1 μg/L 

(Townsend Canal). Using these criteria, these observed levels should not have an acute 

or chronic detrimental impact on fish. 

Diuron: Diuron is a selective, systemic terrestrial herbicide registered for use on 

sugarcane, bananas, and citrus. Environmental fate and toxicity data in Tables 5 and 6 

indicate that diuron (1) is easily lost from soil in surface solution, with moderate loss 

from leaching or surface adsorption; (2) is relatively non-toxic to mammals and fish; and 

(3) does not bioconcentrate significantly. Additional fish toxicity datum includes a 96-

hour LC50 of 25 mg/L for guppies (Hartley and Kidd, 1987). Crustaceans are affected at 

lower concentrations with a 48-hour LC50 of 1.4 mg/L for water fleas and a 96-hour LC50

of 0.7 mg/L for water shrimp (Verschueren, 1983). Most algal effects occur at 

concentrations > 10 μg/L (Verschueren, 1983). Diuron was detected six times. The 

highest surface water concentration of diuron found was 0.40 μg/L (Crawford Canal and 

833-Whidden Canal). Using these criteria, this level should not have an acute, harmful 

impact on fish or aquatic invertebrates. 

Hexazinone: Hexazinone is a non-selective contact herbicide that inhibits 

photosynthesis. Registered uses include sugarcane, pineapple, and non-crop areas. 

Environmental fate and toxicity data in Tables 5 and 6 indicate that hexazinone (1) is 

easily lost from soil by leaching, with moderate loss from surface adsorption or surface 

solution; (2) is relatively non-toxic to mammals and fish; and (3) does not bioconcentrate 

significantly. Hexazinone is practically non-toxic to freshwater invertebrates with an 

EC50 of 145 mg/L for Daphnia magna (USEPA, 1988). Hexazinone was detected 79 

times. The highest surface water concentration detected (0.19 μg/L at C-19 Canal) 

should not have an acute impact on fish or aquatic invertebrates. 

Metalaxyl: Metalaxyl is a systemic fungicide. Registered uses include potatoes, 

strawberries, citrus, avocados and vegetables. Environmental fate and toxicity data in 

Tables 5 and 6 indicate that metalaxyl (1) is easily lost from soil by leaching and has a 

moderate potential for loss due to surface adsorption and surface solution; (2) is relatively 

non-toxic to mammals and fish; and (3) does not bioaccumulate significantly. The only 

concentration of metalaxyl detected was 0.089 μg/L (Crawford Canal). Using these 

criteria, the concentrations of metalaxyl detected should not have an acute, harmful 

impact on fish or aquatic invertebrates. 

Metolachlor: Metolachlor is a selective herbicide used on potatoes, sugarcane, and some 

vegetables. Environmental fate and toxicity data in Tables 5 and 6 indicate that 

metolachlor (1) has a large potential for loss due to leaching and a medium potential for 

loss in surface solution and due to surface adsorption; (2) is relatively non-toxic to 

mammals and fish; and (3) does not bioconcentrate significantly. Metolachlor is nontoxic to birds (Lyman et al., 1990). Metolachlor was only detected five times. The 

highest surface water concentration found (0.2 μg/L at C-3 Canal) is over two orders of 

magnitude below the calculated chronic toxicity level. Using these criteria, this observed 

level should not have a harmful impact on fish or aquatic invertebrates. 
5

Norflurazon: Norflurazon is a selective herbicide registered for use on many crops 

including citrus. Environmental fate and toxicity data in Tables 5 and 6 indicate that 

norflurazon (1) is easily lost from soil surface solution and a moderate potential for loss 

due to leaching and surface adsorption; (2) is relatively non-toxic to mammals and fish; 

and (3) does not bioconcentrate significantly. The LC50 for norflurazon is >200 mg/L for 

catfish and goldfish (Hartley and Kidd, 1987). The concentrations of the 75 norflurazon 

surface water detections ranged from 0.023 to 4.3 μg/L. Even at the highest 

concentration, this is over several orders of magnitude below the calculated chronic 

toxicity level. Using these criteria, these observed levels should not have an acute, 

detrimental impact on fish or aquatic invertebrates. 

Simazine: Simazine is a selective systemic herbicide registered for use on many crops 

including sugarcane, citrus, corn, and non-crop areas. Environmental fate and toxicity 

data in Tables 5 and 6 indicate that simazine (1) is easily lost from soil by leaching and 

has a moderate potential for loss due to surface adsorption and surface solution; (2) is 

relatively non-toxic to mammals and fish; and (3) does not bioconcentrate significantly. 

Additional fish toxicity datum includes a 96-hour LC50 of 49 mg/L for guppies (Hartley 

and Kidd, 1987). Most of the aquatic biological effects occur at concentrations > 500 

μg/L (Verschueren, 1983). Aquatic invertebrate LC50 toxicity ranges from 3.2 mg/L to 

100 mg/L for simazine (USEPA, 1984). Simazine was detected 76 times. The highest 

surface water concentration of simazine detected (3.8 μg/L at Townsend Canal) was 

below any level of concern for fish or aquatic invertebrates. 
 Figure 1. Pesticide and Metal Monitoring Sites.

6
sample number type

start 

time start date

end 

time end date Site ametryn metalaxyl

Class III drainage basin: sugarcane and citrusP020206-1 G 10:15 2/2/2006 N/A N/A 833-Whidden - - - - 0.12 0.016 I - - - 0.024 I - 

P030206-2 G 10:25 3/2/2006 N/A N/A 833-Whidden - - - - 0.38 0.028 I - - - 0.031 I - 

P033006-4 G 12:15 3/30/2006 N/A N/A 833-Whidden 0.65 5.0 1.6 - 1.8 0.074 0.024 I 0.12 I 0.40 I 0.029 I - 

P042706-5 G 12:55 4/27/2006 N/A N/A 833-Whidden - - - - 0.20 0.027 I - - - 0.024 I - 

P052506-1 G 10:00 5/25/2006 N/A N/A 833-Whidden - - - - 0.23 0.072 - - - - - 

P062206-1 G ? 6/22/2006 N/A N/A 833-Whidden - - - - 0.17 0.030 I - - - 0.022 I - 

P072706-1 G 10:20 7/27/2006 N/A N/A 833-Whidden - - - 0.016 I 0.038 I 0.014 I - 0.15 I - 0.025 I - 

P091406-2 G 9:20 9/13/2006 N/A N/A 833-Whidden 0.22 I - - - 0.024 I - - 0.91 - 0.021 I - 

P100206-1 G 10:30 10/2/2006 N/A N/A 833-Whidden - - - 0.033 I 0.040 - - - - 0.22 - 

P110206-1 G 10:10 11/2/2006 N/A N/A 833-Whidden - - - - 0.071 - - - - 0.036 I - 

Class III drainage basin: sugarcaneP013006-3 AS 12:00 1/30/2006 12:03 1/31/2006 C-19 canal - - - - 0.21 0.015 I - - - 0.031 I - 

P022806-3 AS 11:35 2/27/2006 10:35 2/28/2006 C-19 canal - - - - 0.38 0.031 I - - - 0.019 I - 

P030106-6 AS 11:06 2/28/2006 10:06 3/1/2006 C-19 canal - - - - 0.29 0.027 I - - - 0.019 I - 

P032806-3 AS 11:30 3/27/2006 12:55 3/28/2006 C-19 canal - - - - 1.5 0.11 0.020 I - - 0.030 I - 0P042606-3 AS 10:30 4/25/2006 9:30 4/26/2006 C-19 canal - - - - 0.72 0.053 - - - 0.025 I - 

P042706-4 AS 10:40 4/26/2006 9:40 4/27/2006 C-19 canal - - - - 1.5 0.053 0.011 I - - 0.023 I - 

P052306-5 AS 10:00 5/22/2006 9:00 5/23/2006 C-19 canal - - - - 0.26 0.051 - - - 0.016 I - 

P052406-4 AS 11:45 5/23/2006 10:45 5/24/2006 C-19 canal - - - - 0.30 0.039 I - - - 0.015 I - 

P062006-3 AS 9:26 6/19/2006 8:26 6/20/2006 C-19 canal - - - 0.023 I 0.43 0.086 0.019 I - - 0.025 I - 

P062106-3 AS 10:30 6/20/2006 9:30 6/21/2006 C-19 canal - - - 0.017 I 0.32 0.076 - - - 0.032 I - 

P072506-3 AS 11:15 7/24/2006 11:20 7/25/2006 C-19 canal - - - 0.040 I 0.33 0.028 I - - - 0.11 - 

P072606-3 AS 11:20 7/25/2006 10:37 7/26/2006 C-19 canal - - - 0.036 I 0.31 0.028 I - - - 0.19 - 

SD091206-3 AS 10:55 9/12/2006 ? ? C-19 canal - - - 0.019 I 0.074 - - - - - - P091306-5 AS 11:15 9/12/2006 11:45 9/13/2006 C-19 canal - - - 0.026 I 0.075 - - - - 0.016 I - 

P092606-3 AS 10:50 9/25/2006 10:15 9/26/2006 C-19 canal - - - 0.026 I - - - - - 0.030 I 

P092706-3 AS 10:23 9/26/2006 9:23 9/27/2006 C-19 canal - - - 0.025 I 0.15 0.013 I - - - 0.029 I 

P103106-3 AS 9:51 10/30/2006 10:13 10/31/2006 C-19 canal - - - - 0.090 0.012 I - - - 0.039 I - P110106-3 AS 10:12 10/31/2006 9:12 11/1/2006 C-19 canal - - - - 0.084 0.016 I - - - 0.034 I - 

P022706- blank BDL 11:30 2/27/2006 N/A N/A C-19 Canal EB - - - - - - - - - - - 

P052406-5 BDL 11:20 5/23/2006 N/A N/A FIELD BLANK - - - - - - - - - - - 

P062106-4 BDL 12:40 6/21/2006 N/A N/A EQUIPMENT BLANK - - - - - - - - - - - 

P091306-2 BDL 9:00 9/12/2006 N/A N/A FIELD BLANK - - - - - - - - - - - 

P092606-4 BDL 10:05 9/26/2006 N/A N/A EQUIPMENT BLANK - - - - - - - - - - - 

P110106-4 BDL 10:30 11/1/2006 N/A N/A FIELD BLANK - - - - - - - - - - - 

Class III drainage basin: citrus, field crops, and pasturelandP013006-4 G 13:10 1/30/2006 N/A N/A C-3 Canal - - - - 0.15 0.014 I - - - 0.032 I - 

P030106-5 G 10:15 3/1/2006 N/A N/A C-3 Canal - - - - 1.9 0.081 0.014 I 0.089 I - 0.017 I - 

P032806-6 G 11:30 3/28/2006 N/A N/A C-3 Canal - - - - 0.20 0.027 I - - - 0.032 I - 

P052306-4 G 10:30 5/23/2006 N/A N/A C-3 Canal - - - - 0.23 0.033 I - - - 0.016 I - 

P062006-4 G 11:12 6/20/2006 N/A N/A C-3 Canal - - - - 0.17 0.036 I - - - 0.022 I - 

P072606-5 G 13:01 7/26/2006 N/A N/A C-3 Canal - - - 0.013 I 0.13 0.025 I - - - 0.013 I - 0

P091306-4 G ? 9/12/2006 N/A N/A C-3 Canal - - - 0.010 I 0.43 0.031 I - 0.76 - - - 

P092606-5 G 11:03 9/26/2006 N/A N/A C-3 Canal - - - - 0.31 0.018 I - - - - - 

P103106-4 G 10:47 10/31/2006 N/A N/A C-3 Canal - - - 0.012 I 0.054 - - 0.082 I - 0.096 - 

Class IIIP030206-3 G 12:10 3/2/2006 N/A N/A C43-site 2 - - - - 0.40 0.03 I - 0.04 I - 0.03 I - 

P033006-3 G 10:45 3/30/2006 N/A N/A C43-site 2 - - - - 0.23 0.024 I - - - 0.021 I - 

P042706-3 G 10:50 4/27/2006 N/A N/A C43-site 2 - - - - 0.20 0.030 I - - - 0.025 I - P052506-2 G 11:45 5/23/2006 N/A N/A C43-site 2 - - - - 0.19 0.058 - - - 0.017 I - 

P062206-2 G ? 6/22/2006 N/A N/A C43-site 2 - - - - 0.31 0.037 I - - - 0.024 I - 

P072706-2 G 12:13 7/27/2006 N/A N/A C43-site 2 - - - 0.017 I 0.12 0.020 I - 0.095 I - 0.021 I - 

P100206-2 G 12:00 10/2/2006 N/A N/A C43-site 2 - - - - 0.051 - - - - 0.067 I - 

P110206-2 G 11:46 11/2/2006 N/A N/A C43-site 2 - - - - 0.028 I - - 0.10 I - 0.062 I - 

G grabAS autosamplerN/A not applicable- denotes that the result is below the method detection limit (MDL)I value reported is less than the minimum quantitation limit, and greater than or equal to the minimum detection limit270 ml per hour for 24 hours

atrazine 

desisopropyl bromacil 

aldicarb 

sulfoxide

Table 1. Summary of analytes (μg/L) above the method detection limit found in suface water samples.

2,4-D atrazine diuron hexazinone me

atrazine 

aldicarb desethyl

7
sample number type

start 

time start date

end 

time end date Site ametryn metalaxyl

Class IP030206-4 G 13:21 3/2/2006 N/A N/A C43-site 4 - - - - 0.52 0.031 I - 0.046 I - 0.022 I - 0.073 I - 

P033006-1 G 9:30 3/30/2006 N/A N/A C43-site 4 - - - - 0.25 0.027 I - - - 0.019 I - - 0.10 

P042706-1 G 9:11 4/27/2006 N/A N/A C43-site 4 - - - - 0.19 0.028 I - - - 0.031 I - - - 

P052506-3 G 12:58 5/25/2006 N/A N/A C43-site 4 - - - - 0.20 - - - - 0.016 I - - - 

P062206-4 G ? 6/22/2006 N/A N/A C43-site 4 - - - - 0.30 0.035 I - 0.052 I - 0.024 I - - 0.10 

P0727706-4 G 13:17 7/27/2006 N/A N/A C43-site 4 - - - 0.013 I 0.099 0.018 I 0.013 I 0.56 - 0.017 I - - 0.49 

P100206-3 G 13:00 10/2/2006 N/A N/A C43-site 4 - - - - 0.039 - - 0.14 I - 0.020 I - - 0.21 

P103106-4 G 13:17 11/2/2006 N/A N/A C43-site 4 - - - - 0.025 I - - 0.090 I - 0.022 I - - 0.27 Class IP030206-5 G 13:50 3/2/2006 N/A N/A C43-site 5 - - - - 0.56 0.037 I - 0.048 I - 0.027 I - 0.068 I 0.089 

P033006-2 G 9:45 3/30/2006 N/A N/A C43-site 5 - - - - 0.35 0.031 I - - - 0.023 I - - 0.10 

P042706-2 G 9:38 4/27/2006 N/A N/A C43-site 5 - - - - 0.22 0.031 I - - - 0.030 I - - 0.035 

P052506-4 G 13:15 5/25/2006 N/A N/A C43-site 5 - - - - 0.19 0.052 - - - 0.017 I - - 0.079 

P062206-3 G ? 6/22/2006 N/A N/A C43-site 5 - - - - 0.21 0.033 I - 0.088 - 0.020 I - - 0.15 

P072706-3 G 12:58 7/27/2006 N/A N/A C43-site 5 - - - - 0.084 0.019 I 0.021 I 0.91 0.20 I 0.014 I - - 0.89 

P100206-4 G 13:20 10/2/2006 N/A N/A C43-site 5 - - - - 0.040 - - 0.15 I - - - - 0.22 

P110206-3 G 12:55 11/2/2006 N/A N/A C43-site 5 - - - - 0.030 I - - 0.076 I - - - - 0.20 Class III drainage basin: citrus, field crops, and pasturelandP013006-5 G 14:20 1/30/2006 N/A N/A Crawford Canal - - - - 0.062 0.011 I - 0.089 I - 0.017 I - - 0.44 

P022806-4 G ? 2/28/2006 N/A N/A Crawford Canal - - - - 0.54 0.04 - 0.083 I - 0.018 I - - 0.44 

P032806-5 G 10:40 3/28/2006 N/A N/A Crawford Canal - - - - 0.20 0.027 I - 0.80 0.27 I 0.017 I - - 0.89 

P052306-3 G 9:50 5/23/2006 N/A N/A Crawford Canal - - - - 0.19 0.051 0.052 1.3 0.40 I - - - 1.3 

P052406-3 G 10:10 5/??/06 N/A N/A Crawford Canal - P062006-5 G 11:45 6/20/2006 N/A N/A Crawford Canal 19 - - - 0.12 0.026 I 0.022 I 0.25 - - 0.089 I - 0.97 

P072606-4 G 12:24 7/26/2006 N/A N/A Crawford Canal - - - - - - - 0.87 - - - - 1.0 

SD091206-3 G 12:30 9/12/2006 N/A N/A Crawford Canal - - - - - - - 0.68 - 0.023 I - - 1.3 

P092706-4 G 9:10 9/27/2006 N/A N/A Crawford Canal - - - - 0.036 I - - - - - - - 0.79 

P103106-5 G 11:49 10/31/2006 N/A N/A Crawford Canal - - - - 0.036 I - - - - - - - 0.25 

Class III drainage basin: residentialP013006-2 AS 9:50 1/30/2006 9:53 1/31/2006 Hickey Creek - - - - 0.026 I - - - - - - - 0.033 

P013106-2 AS 10:50 1/31/2006 9:52 2/1/2006 Hickey Creek - - - - 0.026 I - - - - - - - 0.039 P022806-2 AS 9:40 2/27/2006 8:40 2/28/2006 Hickey Creek - - - - 0.16 0.015 I - - - - - - - P030106-4 AS 9:30 2/28/2006 8:30 3/1/2006 Hickey Creek - - - - 0.29 0.02 I - - - 0.012 I - - 0.032 

P032806-1 AS 9:35 3/27/2006 8:50 3/28/2006 Hickey Creek - - - - 0.28 0.027 I - - - 0.020 I - - 0.077 

P032906-1 AS 9:10 3/28/2006 9:00 3/29/2006 Hickey Creek - - - - 0.25 0.023 I - - - 0.015 I - - 0.061 

P042606-1 AS 8:41 4/25/2006 7:41 4/26/2006 Hickey Creek - - - - 0.17 0.021 I - - - 0.014 I - - 0.023 

P052306-1 AS 8:20 5/22/2006 7:20 5/23/2006 Hickey Creek - - - - 0.17 0.024 I - 0.23 - 0.015 I - - 0.19 

P052406-1 AS 8:45 5/23/2006 7:45 5/24/2006 Hickey Creek - - - - 0.12 0.020 I - 0.14 I - - - - 0.10 

P062006-1 AS 9:26 6/19/2006 8:26 6/20/2006 Hickey Creek - - - - 0.14 0.032 I 0.011 I 0.075 I - 0.014 I - - 0.11 

P062106-1 AS 8:40 6/20/2006 7:40 6/21/2006 Hickey Creek - - - - 0.16 0.042 I - - - 0.014 I - - 0.12 

P072506-1 AS 9:15 7/24/2006 8:29 7/25/2006 Hickey Creek - - - - - - - - - - - - - 

P072606-1 AS 8:30 7/25/2006 8:47 7/26/2006 Hickey Creek - - - - 0.019 I - - - - - - - - 

SD091206-1 AS 8:45 9/11/2006 8:45 9/12/2006 Hickey Creek - - - - 0.018 I - - - - - - - - P091306-1 AS 9:00 9/12/2006 8:30 9/13/2006 Hickey Creek - - - - - - - - - - - - - 

P092606-1 AS 8:40 9/25/2006 8:10 9/26/2006 Hickey Creek - - - - - - - - - - - - - 

P103106-1 AS 8:05 10/30/2006 8:05 10/31/2006 Hickey Creek - - - - 0.023 I - - - - - - - 0.14 

P110106-1 AS 8:22 10/31/2006 7:22 11/1/2006 Hickey Creek - - - - 0.017 I - - - - - - - 0.11 

Class III drainage basin: citrusP013006-1 AS 8:51 1/30/2006 8:53 1/31/2006 Townsend Canal - - - - 0.092 - - - - - - - 0.15 

013106-1 AS 10:00 1/31/2006 9:02 2/1/2006 Townsend Canal - - - - 0.082 0.017 - - - 0.021 I - - 0.14 

P030106-3 AS 8:53 2/28/2006 7:53 3/1/2006 Townsend Canal - - - - 0.52 0.036 I - 0.051 I - 0.027 I - - 0.089 

P030206-1 AS 9:00 3/1/2006 8:00 3/2/2006 Townsend Canal - - - - 0.52 0.038 I - 0.046 I - 0.023 I - - 0.097 

P032806-2 AS 10:15 3/27/2006 10:10 3/28/2006 Townsend Canal - - - - 0.23 0.032 I - - - 0.020 I - - 0.33 

P032906-2 AS 10:18 3/28/2006 9:40 3/29/2006 Townsend Canal - - - - 0.23 0.028 I - - - 0.020 I - - 0.097 

P042606-2 AS 9:37 4/25/2006 8:37 4/26/2006 Townsend Canal - - - - 0.18 0.024 I - - - 0.035 I - - 0.040 

P052306-2 AS 8:50 5/22/2006 7:50 5/23/2006 Townsend Canal - - - - 0.20 0.028 I - 0.096 I - 0.017 I - - 0.057 

P052406-2 AS 9:30 5/23/2006 8:30 5/24/2006 Townsend Canal - - - - 0.21 0.029 I - 0.073 I - 0.015 I - - 0.044 

P062006-2 AS 9:55 6/19/2006 8:55 6/20/2006 Townsend Canal - - - - 0.25 0.041 I - - - 0.019 I - - 0.10 

P062106-2 AS 9:15 6/20/2006 8:15 6/21/2006 Townsend Canal 0.86 - - - 0.31 0.068 - - - 0.019 I - - 0.090 

P072506-2 AS 10:00 7/24/2006 9:20 7/25/2006 Townsend Canal - - - - 0.056 0.022 I 0.16 6.1 0.29 I - - - 4.3 

P072606-2 AS 9:21 7/25/2006 9:23 7/26/2006 Townsend Canal - - - - 0.044 0.025 I 0.11 5.1 0.25 I - - - 3.5 

P091306-3 AS 9:43 9/12/2006 9:00 9/13/2006 Townsend Canal - - - - 0.068 - - 0.78 - - - - 0.73 P091406-1 AS 9:20 9/13/2006 8:20 9/14/2006 Townsend Canal - - - - 0.080 - - 1.1 0.91 

P092606-2 AS 9:15 9/25/2006 8:47 9/26/2006 Townsend Canal - - - - 0.038 I - - 0.52 - - - - 0.51 

P092706-2 AS 9:00 9/26/2006 8:00 9/27/2006 Townsend Canal - - - 0.011 I 0.040 I - - 0.27 - 0.022 I - - 0.25 

P103106-2 AS 8:36 10/30/2006 8:49 10/31/2006 Townsend Canal - - - - 0.029 I - - 0.12 I - 0.031 I - - 0.25 

P110106-2 AS 8:57 10/31/2006 7:57 11/1/2006 Townsend Canal - - - - 0.028 I - - 0.11 I - 0.032 I - - 0.25 

G grabAS autosamplerN/A not applicable- denotes that the result is below the method detection limit (MDL)I value reported is less than the minimum quantitation limit, and greater than or equal to the minimum detection limit270 ml per hour for 24 hours

Table 1. (cont.) Summary of analytes (μg/L) above the method detection limit found in suface water samples.

2,4-D aldicarb

aldicarb 

sulfoxide atrazine

atrazine 

desethyl

atrazine 

desisopropyl bromacil diuron hexazinone metolachlor norflurazo

8
flow ametryn atrazine DEA DIA bromacil diuron ethion hexazinone metalaxyl metribuzin metolachlor norflurazon simazine 2,4-D

7/25/2006 Y - 0.051 0.017 I 0.13 6.1 0.43 I - - - - - 3.8 3.0 -

5/17/2006 Y - 0.20 0.029 I - 1.9 0.60 - 0.017 I - - - 1.5 0.039 -

1/31/2006 R - 0.088 0.011 I - - - - 0.023 I - - - 0.15 0.016 I -

12/14/2005 R - - - - - -- - - - - - - -

8/18/2005 Y - 0.016 I - - 1.4 - - - - - - 1.2 0.069 -

5/25/2005 R - 0.19 0.023 I - - - - 0.027 I - - - 0.024 I 0.010 I -

2/23/2005 R - 0.1 0.017 I - - - - 0.030 I - - - 0.075 I - -

12/1/2004 R - 0.077 0.013 I - - - - 0.039 I - - - 0.064 I - -

7/22/2004 N 0.011 I 0.18 0.038 0.11 3.1 0.94 - - - - - 1.5 4.3 2.5

4/13/2004 Y - 0.31 0.037 I - 0.12 0.50 I - 0.020 I - - - 0.32 0.069 -

1/14/2004 N - 0.35 0.039 - - - - 0.022 I - - 0.011 I 0.087 0.026 I -

10/22/2003 R - 0.095 0.017 I 0.011 I 0.040 I - - 0.032 I - - - 0.072 I 0.015 I -

7/23/2003 N - 0.076 0.015 I - - - - - - - - 0.16 0.084 -

5/14/2003 R 0.012 I 0.86 0.056 0.017 I 0.068 I - - - - - - 0.13 0.068 -

3/13/2003 N - 0.15 0.017 I 0.077 I - - - - - - - 0.17 0.039 -

11/19/2002 Y - 12 1.0 - 2.8 0.56 - - - - - 0.74 7.3 -

9/18/2002 N - 0.090 0.021 I 0.015 I - 0.42 - - 0.090 I - - 0.66 0.060 -

6/5/2002 R - 0.22 0.057 0.020 I 0.15 I - - - - - - 0.094 0.078 -

2/5/2002 N 0.026 I 0.32 0.021 I 0.012 I 0.21 - - 0.020 I - - - 0.23 0.059 -

12/18/2001 R 0.019 I 0.31 0.020 I 0.025 I 0.71 0.30 I - - - - - 0.46 0.30 -

8/15/2001 Y - - - 0.042 - - - - - - - 0.49 0.88 -

5/22/2001 Y 0.018 I 0.41 0.054 0.026 I 0.28 - - - - - - 0.18 0.26 -

3/20/2001 N - 0.11 0.019 I - 0.36 0.39 I - - - - - 0.28 0.49 -

11/15/2000 Y - 0.092 - - 1.5 - - - - - - 0.49 0.11 -

8/9/2000 Y - 1.1 0.044 I 0.041 I 3.6 - - - - - 1.2 0.84 0.51 -

5/3/2000 Y - 0.34 0.047 I - - - - - - - - - 0.03 I -

2/10/2000 N - 0.080 0.015 I - 0.16 I - - - - - - 0.17 0.14 -

11/16/1999 Y - 0.07 0.013 I - 0.11 I - - - - - - 0.03 I - -

8/9/1999 N 0.05 0.051 n/a n/a 0.68 - - - 0.1 I - - 0.36 0.021 I -

4/26/1999 R 0.016 I 0.33 n/a n/a - - - - - - - 0.053 I - -

1/11/1999 N 0.013 I 0.51 n/a n/a 0.17 I - - - - - - 0.42 0.099 -

12/14/1998 Y - 0.47 n/a n/a - - - - - - - 0.40 0.089 I -

10/1/1998 Y - 0.066 n/a n/a 0.44 - - - - - - 0.57 0.050 I -

6/18/1998 R - 0.12 n/a n/a 0.37 0.44 I -- - - - 0.42 0.16 -

3/3/1998 Y - 0.17 n/a n/a 1.8 - - - - 0.056 I - 0.44 0.087 I -

11/20/1997 Y - 0.056 n/a n/a 0.59 -- - - - - 0.33 0.039 I -

8/18/1997 Y 0.017 I 0.071 n/a n/a 1.5 0.48 I - - - - - 1.7 0.033 I -

5/12/1997 Y 0.011 I 0.60 n/a n/a 0.37 - - - - - 0.15 I 0.50 0.044 I -

2/24/1997 R 0.064 0.39 n/a n/a - - - - - - - 0.053 - -

10/14/1996 N - 0.070 n/a n/a 2.1 - - - - - - 1.3 0.21 -

7/22/1996 R 0.016 0.085 n/a n/a - - - 0.021 - - 0.070 0.42 0.088 -

4/15/1996 R 0.082 2.3 n/a n/a 0.12 - - 0.034 - - - 0.13 0.032 -

1/22/1996 N 0.038 0.23 n/a n/a 0.10 - - - - - - 0.10 - -

10/9/1995 Y - 0.021 n/a n/a 6.4 - - - - - - 3.7 0.45 -

8/7/1995 - 0.01 n/a n/a 1.4 - - - - - - 0.27 - -

6/5/1995 0.011 1.6 n/a n/a 6.3 2.7 0.035 2 0.024 - - - 3.9 1 -

3/27/1995 0.02 0.29 n/a n/a 0.1 - - 0.052 - - - 0.081 - -

12/5/1994 R - - n/a n/a - - - - - - - - - -

9/26/1994 - - - n/a n/a 7 - - n/a - - - n/a N 2.5 -

7/25/1994 Y - 2.3 n/a n/a 3.6 0.56 I - n/a - - - n/a 0.60 -

6/13/1994 R - 1.9 n/a n/a 1.9 1.3 - n/a - - - n/a 0.78 -

4/5/1994 R 0.17 I 1.2 n/a n/a - 0.44 I - n/a - - - n/a 0.14 I -

2/14/1994 R - 0.73 n/a n/a - - - n/a - - - n/a - -

11/29/1993 R - - n/a n/a - - - n/a - - - n/a 0.15 I -

9/27/1993 Y - - n/a n/a 2.1 0.42 I - n/a - - - n/a 0.41 -

6/28/1993 Y - 2.4 * n/a n/a 2.6 * 0.61 *T - n/a - - - n/a 0.58 * -

3/15/1993 N - 0.14 T n/a n/a 0.40 T - - n/a - - - n/a 0.14 T -

1/25/1993 Y 0.08 T 1.1 n/a n/a 1.6 - - n/a - - - n/a 0.84 -

11/2/1992 R - - n/a n/a 0.66 - - n/a - - - n/a 0.30 -

9/14/1992 Y - - n/a n/a - - - n/a - - - n/a 0.34 * -

7/27/1992 R - 0.15 A n/a n/a - - - n/a - - - n/a - -

6/1/1992 R 0.05 T 2.9 A n/a n/a 0.39 T - - n/a - - - n/a 0.061 T -

4/6/1992 N - 1.2 A n/a n/a 2.2 A 0.53 A - n/a - - - n/a 0.33 A -

MIN 0.011 0.01 0.011 0.011 0.04 0.3 0.035 0.017 0.09 0.056 0.011 0.024 0.01 2.5

MAX 0.17 12 1 0.13 7 2.7 0.035 0.052 0.1 0.056 1.2 3.9 7.3 2.5

AVG 0.04 0.72 0.068 0.044 1.61 0.68 0.035 0.028 0.095 0.056 0.36 0.65 0.54 2.5

COUNT 63 19 55 24 12 42 17 1 13 2 1 4 45 51 1

% DETECT 30 87 86 43 67 27 2 21 3 2 6 71 81 2

- denotes that the result is below the method detection limit (MDL)

* results are the average of duplicate samples

I value reported is less than the minimum quantitation limit, and greater than or equal to the minimum detection limit

A value reported is the mean of two or more determinations

1 value exceeds Florida Class III water quality standard for surface water (FAC Chapter 62-302)

2 value exceeds toxicity levels for aquatic invertebrates

n/a compound not analyzed

T value reported is less that the practical quantitation limit

Table 2. Summary of pesticide detections (μg/L) in surface water samples collected by SFWMD at CR33.5T (Townsend Canal).

9
flow ametryn atrazine DEA DIA bromacil diuron

endosulfan 

sulfate ethoprop hexazinone metalaxyl metolachlor metribuzin norflurazon simazine

7/25/2006 Y - 0.19 0.037 I 0.027 I 0.60 0.76 - - 0.012 I - - - 1.2 0.69

5/17/2006 N - 0.23 0.027 I - - - - - 0.022 I - - - 0.024 I 0.016 I

1/31/2006 Y - 0.087 - - 0.049 I - - - 0.020 I - - - 0.13 0.019 I

12/14/2005 Y - - - - - - - - - - - - - -

8/18/2005 Y - 0.087 - - 0.094 I - - - 0.033 I - - - 0.12 0.032 I

5/25/2005 Y - 0.20 0.024 I - - - - - 0.027 I - - - 0.026 I 0.010 I

2/23/2005 Y - 0.11 0.018 I - - - - - 0.038 I - - - 0.052 I -

12/1/2004 Y - 0.080 0.012 I - - - - - 0.041 I - - - 0.048 I -

7/22/2004 Y - 0.34 0.033 I 0.020 I 0.17 - - - 0.032 I - - - 0.40 0.19

4/13/2004 Y - 0.19 0.026 I - - - - - 0.020 I - - - 0.071 I 0.013 I

1/14/2004 Y 0.015 I 0.33 0.033 I - - - - - 0.028 I - 0.13 I - 0.076 0.022 I

10/22/2003 Y - 0.089 0.018 I 0.011 I 0.049 I - - - 0.034 I - - - 0.069 I 0.019 I

7/23/2003 Y - 0.075 0.011 I - 0.27 - - - - - - - 0.26 0.097

5/14/2003 Y 0.018 I * 2.3 * 0.097 * 0.022 I * 0.16 * - - - 0.024 I * - - - 0.18 * 0.081 *

3/13/2003 Y - 0.15 0.018 I - 0.052 I - - - - - - - 0.14 0.024 I

11/19/2002 Y - 0.56 * 0.036 I * 0.030 I * - 0.86 * - - - - - - - 0.50 *

9/18/2002 Y - 0.045 - - - - - - - - - - 0.21 0.066

6/5/2002 N 0.011 I 0.23 0.049 0.034 I 0.53 - - - - - - - 0.19 0.34

2/5/2002 N 0.032 I 0.34 0.020 I 0.015 I 0.25 - - - 0.019 I - - - 0.26 0.10

12/18/2001 N 0.015 I 0.27 0.020 I 0.025 I 0.86 0.27 I - - - - - - 0.44 0.40

8/15/2001 Y - - - 0.025 I 2.0 - - - - - - - 0.58 0.67

5/22/2001 N 0.023 I 0.28 - - 0.53 0.24 I - - - - - - 0.25 0.35

3/20/2001 N - 0.11 0.021 I 0.017 I 0.11 I - - - - - - - 0.17 0.1

11/15/2000 N 0.043 - - 1.1 - - - - - - 0.38 0.18

8/9/2000 N 0.019 I 0.22 0.022 I 0.015 I 1.2 - - - - - 0.13 I - 0.36 0.17

5/3/2000 Y - 0.33 0.031 I - - - - - - - - - - 0.023 I

2/10/2000 Y - 0.089 * 0.013 I * - - - - - - - - - 0.086 I * 0.029 I *

11/16/1999 Y - 0.065 0.013 I - 0.07 I - - - - - - - 0.035 I -

8/10/1999 N 0.045 I 0.046 I n/a n/a 0.23 - - - - 0.064 I - - 0.31 0.028 I

4/26/1999 N 0.029 I 0.37 n/a n/a - - - - - - - 0.031 I 0.045 I -

1/11/1999 Y 0.011 I 0.36 n/a n/a 0.25 - - - - - - - 0.43 0.10

12/14/1998 Y 0.013 I 0.78 n/a n/a - - - 0.032 I - - - - 0.49 0.052 I

10/1/1998 Y 0.058 0.046 I n/a n/a 0.34 - - - - - - - 0.40 0.020 I

6/18/1998 N - 0.13 * n/a n/a 0.66 * 0.82 * - - - - - - 0.29 * 0.20 *

3/3/1998 Y 0.010 I 0.16 n/a n/a 0.13 - - - - - - - 0.086 I 0.028 I

11/20/1997 Y - 0.093 * n/a n/a 0.75 * - - - - - - - 0.42 * 0.11 *

8/18/1997 Y 0.024 *I 0.21 * n/a n/a - 0.48 *I - - 0.023 *I - - 0.022 *I 0.81 * 0.072 *I

5/12/1997 Y 0.011 I 0.67 n/a n/a 0.60 0.56 I - - - - 0.12 I - 0.37 0.058 I

2/24/1997 N 0.019 * 0.22 * n/a n/a - - - - - - - - 0.086 * -

10/14/1996 Y 0.014 0.039 n/a n/a 0.66 - - - - - - - 0.31 0.074

7/22/1996 N 0.017 0.072 n/a n/a 0.18 - - - 0.022 - - - 0.18 0.051

4/15/1996 N 0.043 * 1.03 * n/a n/a 0.11 * - - - 0.023 * - - - 0.11 * 0.027 *

1/22/1996 Y 0.038 0.26 n/a n/a 0.11 - - - 0.029 - - - 0.12 0.025

10/9/1995 Y 0.015 0.088 n/a n/a 1.9 - - - - - - - 0.43 0.25

8/7/1995 0.01 0.036 n/a n/a 0.56 - - - 0.022 - - - 0.15 0.029

6/5/1995 0.016 0.26 n/a n/a 1.5 0.48 0.023 - 0.046 - - - 0.3 0.54

3/27/1995 0.041 0.60 n/a n/a 0.12 - - - 0.04 - - - 0.079 0.02

12/5/1994 Y - - n/a n/a - - - - - - - - - -

9/26/1994 - - - n/a n/a 0.6 I - - - n/a - - - n/a -

7/25/1994 N - 0.22 I n/a n/a 0.87 I 3.6 - - n/a - - - n/a 0.30

6/13/1994 Y - 1.8 n/a n/a 0.78 I 0.52 I - - n/a - - - n/a 0.3

4/5/1994 N - 1.2 n/a n/a - 0.52 I - - n/a - - - n/a 0.18 I

2/14/1994 N - 0.23 I n/a n/a - - - - n/a - - - n/a -

11/29/1993 N - - n/a n/a - - - - n/a - - - n/a -

9/27/1993 - - - n/a n/a 1.8 - - - n/a - - - n/a 0.28

6/28/1993 N - 0.79 n/a n/a 1.3 T 0.84 - - n/a - - - n/a 0.56

3/15/1993 N - 0.15 T n/a n/a - - - - n/a - - - n/a 0.081 T

1/25/1993 Y 0.18 T 1.0 n/a n/a - - - - n/a - - - n/a 0.09 T

11/2/1992 - 0.05 T - n/a n/a 0.60 - - - n/a - - - n/a 0.16

9/14/1992 N 0.062 - n/a n/a - - - - n/a - - - n/a -

7/27/1992 N - - n/a n/a 1.1 A - - - n/a - - - n/a -

6/1/1992 N 0.039 T 1.4 A n/a n/a 0.75 T - - - n/a - - - n/a -

4/6/1992 N - 1.2 A n/a n/a - - - - n/a - - - n/a 0.23 A

MIN 0.01 0.036 0.011 0.011 0.049 0.24 0.023 0.032 0.012 0.064 0.12 0.022 0.024 0.01

MAX 0.18 2.3 0.097 0.034 2 3.6 0.023 0.032 0.046 0.064 0.13 0.031 1.2 0.69

AVG 0.03 0.38 0.028 0.022 0.60 0.83 0.023 0.032 0.028 0.064 0.13 0.027 0.25 0.160

COUNT 63 28 54 21 11 40 12 1 1 20 1 3 2 44 50

% DETECT 44 86 75 39 63 19 2 2 42 2 5 3 92 79

- denotes that the result is below the method detection limit (MDL)

* results are the average of duplicate samples

I value reported is less than the minimum quantitation limit, and greater than or equal to the minimum detection limit

A value reported is the mean of two or more determinations

1 value exceeds Florida Class III water quality standard for surface water (FAC Chapter 62-302)

2 value exceeds toxicity levels for aquatic invertebrates

n/a compound not analyzed

T value reported is less that the practical quantitation limit

Table 3. Summary of pesticide detections (μg/L) in surface water samples collected by SFWMD at S79.

10
11

Y 0.018 I * 0.059 * 0.015 I * 0.029 I * - -- - - - 0.70 * 0.13

N 0.016 I 0.38 0.082 0.024 I - - - 0.37 - - - 0.017

N 0.016 I 0.26 0.03 I 0.015 I 0.078 I - - - - - 0.026 I 0.013

N 0.028 I 0.26 0.021 I - - - - 0.026 I - - 0.31 0.019

N - - 0.021 I* 0.011 I* - - - 0.025 I* - - 0.33 * 0.044

Y - 0.27 0.039 I - - - - - - - - 0.012

Y 0.015 I 0.16 0.018 I - - -- - - - 0.037 I -

9 Y - 0.061 0.01 I - - - - - - - - -

N 0.068 0.094 n/a n/a 0.33 - - 0.024 I - - 0.63 0.023

Y 0.015 I* 0.37 * n/a n/a - - - - - - - -

Y 0.039 I 0.53 n/a n/a - - - - - - - -

8 N - 0.92 n/a n/a 0.25 - 0.039 I - - - 0.19 -

Y 0.049 0.061 n/a n/a 0.45 - - - - - 0.55 -

N 0.010 I 0.15 n/a n/a - - - - - - - -

Y 0.0097 I 0.14 n/a n/a 0.090 I - - - - - 0.046 I -

7 N 0.024 I 0.13 n/a n/a 0.23 - - - - - 0.11 I 0.093

Y 0.048 0.12 n/a n/a 0.70 0.48 I - 0.034 I - - 0.63 0.074

N 0.19 * 0.67 * n/a n/a 0.17 *I - - - - - 0.13 *I -

N 0.018 0.21 n/a n/a - - - - - - - -

6 Y 0.028 0.056 n/a n/a - - - - - - 0.036 -

Y 0.016 0.099 n/a n/a - - - - - 0.12 0.18 0.021

Y 0.02 0.36 n/a n/a 0.089 - - 0.024 - - - 0.02

N 0.013 0.1 n/a n/a 0.096 - - 0.031 - - - -

5 Y 0.033 0.29 n/a n/a 0.2 - - 0.03 0.039 - 0.13 0.11

0.026 0.097 n/a n/a 0.19 - - 0.024 - - 0.089 0.069

0.023 0.25 n/a n/a 0.055 - - 0.056 - - - -

0.024 0.32 n/a n/a 0.12 - - 0.046 - - - -

4 Y - - n/a n/a - - - - - - - -

Y - - n/a n/a - - - n/a - - n/a -

N - 0.16 I n/a n/a 0.4 I 0.8 I - n/a - - n/a -

Y - 0.65 n/a n/a 0.88 I 0.72 I - n/a - - n/a 0.16

N 0.16 I 2.2 n/a n/a - - - n/a - - n/a -

N 0.21 I 1.6 n/a n/a - - - n/a - - n/a -

3 N - 0.16 I n/a n/a - - - n/a - - n/a -

- - - n/a n/a - - - n/a - - n/a -

Y - 0.66 n/a n/a - - - n/a - - n/a -

Y - 0.51 n/a n/a - - - n/a - - n/a -

Y - 0.34 T n/a n/a 0.37 T - - n/a - - n/a -

2 - 0.037 T 0.039 T n/a n/a - - - n/a - - n/a 0.042

Y - - n/a n/a - - - n/a - - n/a -

N - 0.19 A n/a n/a - - - n/a - - n/a -

N - 0.32 A n/a n/a - - - n/a - - n/a -

N - 2.1 A n/a n/a - - - n/a - - n/a -

0.0097 0.039 0.01 0.011 0.049 0.48 0.039 0.017 0.039 0.12 0.02 0.011

0.21 2.2 0.082 0.029 0.88 0.8 0.039 0.37 0.039 0.14 0.7 0.16

0.04 0.37 0.03 0.017 0.23 0.67 0.039 0.05 0.039 0.13 0.19 0.039

63 32 57 26 10 22 3 1 22 1 2 28 27

T 51 90 93 36 35 5 2 46 2 3 58 43

at the result is below the method detection limit (MDL)

 the average of duplicate samples

rted is less than the minimum quantitation limit, and greater than or equal to the minimum detection limit

orted is the mean of two or more determinations

eeds Florida Class III water quality standard for surface water (FAC Chapter 62-302)

eeds toxicity levels for aquatic invertebrates

nd not analyzed

orted is less that the practical quantitation limit

flow ametryn atrazine DEA DIA bromacil diuron ethoprop hexazinone malathion metolachlor norflurazon simazine

7/25/2006 Y 0.015 I 0.13 0.022 I - 0.061 I - - 0.024 I - - 0.19 0.012 I

5/17/2006 N - 0.21 0.029 I - - - - 0.017 I - - - 0.015 I

1/31/2006 Y - 0.27 0.016 I - - - - 0.030 I - - 0.034 I 0.011 I

12/14/2005 Y - -- - - -- - - - - -

8/18/2005 Y - 0.098 0.017 I - - - - 0.041 - - - 0.020 I

5/25/2005 Y - 0.17 0.030 I - - - - 0.023 I - - - -

2/23/2005 N - 0.11 0.017 I - - - - 0.039 I - - - -

12/1/2004 Y - 0.10 0.020 I - - - - - - - - -

7/22/2004 Y 0.021 I 0.78 0.081 0.016 I 0.058 I - - 0.17 - - 0.10 0.033 I

4/13/2004 Y - 0.20 0.028 I - - --0.020 I -- --

1/14/2004 Y - 0.17 0.025 I - - -- - - - 0.025 I 0.012 I

10/22/2003 Y - 0.12 0.018 I 0.011 I 0.049 I --0.034 I - - 0.069 I 0.019 I

7/23/2003 Y - 0.083 0.012 I - - - - - - - 0.078 0.016 I

5/14/2003 Y 0.0098 I 0.47 0.041 0.015 I - -- - - 0.14 I 0.040 I 0.012 I

3/13/2003 Y - 0.20 0.022 I - - -- - - - 0.020 I -

11/19/2002 Y - 0.22 0.019 I - - -- - - - 0.065 I -

9/18/2002 Y - 0.057 - - - - - - - - 0.034 I -

6/5/2002 N 0.013 I 0.58 0.063 0.021 I - -- - - - - 0.022 I

2/5/2002 N 0.079 0.92 0.042 0.013 I 0.054 I --0.028 I - - 0.11 0.020 I

12/18/2001 N 0.052 * 0.75 * 0.044 * 0.017 I * 0.054 I * --0.024 I * - -0.30 * 0.024 I *

8/15/2001 *

5/22/2001 I

3/20/2001 I

11/15/2000 I

8/9/2000 I*

5/3/2000 I

2/10/2000

11/16/199

8/9/1999 I

4/26/1999

1/11/1999

12/14/199

10/1/1998

6/18/1998

3/3/1998

11/20/199 I

8/18/1997 I

5/12/1997

2/24/1997

10/14/199

7/23/1996

4/15/1996

1/22/1996

10/9/199

8/7/1995

6/5/1995

3/27/1995

12/5/199

9/26/1994

7/25/1994

6/13/1994 I

4/5/1994

2/14/1994

11/29/199

9/27/1993

6/28/1993

3/15/1993

1/25/1993

11/2/199 T

9/14/1992

7/27/1992

6/1/1992

4/6/1992

MIN

MAX

AVG

COUNT

% DETEC

- denotes th

* results are

I value repo

A value rep

1 value exc

2 value exc

n/a compou

T value rep

Table 4. Summary of pesticide detections (μg/L) in surface water samples collected by SFWMD at S78.
Table 5. Selected properties of pesticides detected.

Surface LD50

Water acute rats Water Soil

Standards oral EPA Solubility Koc Half-life Volatility

FAC 62-302 (mg/kg) Carcinogenic (mg/L) (mL/g) (days) frrom Bioconcentra

Common Name (μg/L) (1) Potential (2, 3) (2, 3) (2, 3) LE SA SS Water Factor (BC

2,4-D (100) 375 D 890 20 10 M S M I 13

aldicarb - 0.93 - 6,000 30 30 L S M - 5

ametryn - 1,110 D 185 300 60 M M M I 33atrazine - 3,080 C 33 100 60 L M L I 86bromacil - 5,200 C 700 32 60 L M M I 15

diuron - 3,400 D 42 480 90 M M L I 75hexazinone - 1,690 D 33,000 54 90 L M M I 2

metalaxyl - 669 - 7,100 100 70 L M M I 4metolachlor - 2,780 C 530 200 90 L M M I 18norflurazon - 9,400 C 28 700 90 M M L I 94simazine - >5,000 C 6.2 130 60 L M M I 221SCS Ratings are pesticide loss due to leaching (LE), surface adsorption (SA) or surface solution (SS) and grouped as large(L), medium (M), small (S) Volatility from water: R = rapid, I = insignificant, S = significantBioconcentration Factor (BCF) calculated as BCF = 10(2.791 - 0.564 log WS) (4)

B2: probable human carcinogen; C: possible human carcinogen; D: not classified; E: evidence of non-carcinogen for humans (5)FDEP surface water standards (7/04) for Class III waters except Class I in ( )(1) Hartley, D. and H. Kidd. (Eds.) (1987).(2) Goss, D. and R. Wauchope. (Eds.) (1992).(3) Montgomery, J.H. (1993).(4) Lyman,W.J., W.F. Reehl, and D.H. Rosenblatt. (1990).(5) U.S. Environmental Protection Agency (1996).

Soil

Conservation

Service (SCS)

Rating (2)

12
Table 6.

13

2,4-D aldicarb ametryn atrazine bromacil diruon hexazinon metalaxyl metolachlor norflurazo simazine (*) Florida Adrespectivesignifican(#) Species is(1) Hartley(2) Montgomer(3) U.S. E(4) Mayer(5) U.S. E(6) Johns

Common

Name

 Toxicity of pesticides detected to freshwater aquatic invertebrates and fishes (μg/L).

48-hr EC50 96-hr LC50 96-hr LC50 96-hr LC50 96-hr LC50 

Water flea Fathead Minnow (#) acute chronic Bluegill acute chronic Largemouth Bass acute chronic Rainbow Trout (#) acute 

Daphnia Pimephales toxicity toxicity Lepomis toxicity toxicity Micropterus toxicity toxicity Oncorhynchus toxicity 

magna promelas macrochirus salmoides mykiss 

25,000 (3) 8,333 1,250 133,000 (3) 44,333 6,650 180,000 (4) 60,000 9,000 - - - 100,000 (1) 33,333 

51 (5) 17 3 - - - 50 (5) 17 3 560 (6) 187 

28,000 (3) 9,333 1,400 - - - 4,100 (1) 1,367 205 - - - 8,800 (1) 2,933 

6,900 (3) 2300 345 15,000 (3) 5,000 750 16,000 (1) 5,333 800 - - - 8,800 (1) 2,933 

- - - - - - 127,000 (2) 42,333 6,350 - - 36,000 (2) 12,000 

1,400 (3) 467 70 14,200 (3) 4,733 710 5,900 (1) 1967 295 - - - 5,600 (1) 1,867 

e 151,600 (3) 50,533 7,580 274,000 (1) 91,333 13,700 100,000 (3) 33,333 5,000 - - - 180,000 (3) 60,000 

28,000 (3) 9,333 1,400 - 139,000 (3) 46,333 6,950 - - - 132,000 (3) 44,000 

23,500 (3) 7,833 1,175 - - - 15,000 (1) 5,000 750 - - - 2,000 (1) 667 

n 15,000 (3) 5,000 750 - - - 16,300 (3) 5,433 815 - - - 8,100 (3) 2,700 

1,100 (3) 367 55 100,000 (3) 33,333 5,000 90,000 (1) 30,000 4,500 - - - 100,000 (3) 33,333 

ministrative Code (FAC) 62-302.200, for compounds not specifically listed, acute and chronic toxicity standards are calculated as one-third and one-twentieth,

ly, of the amount lethal to 50% of the test organisms in 96 hours, where the 96 hour LC50 is the lowest value which has been determined for a species

t to the indigenous aquatic community.

 not indigenous. Information is given for comparison purposes only.

, D. and H. Kidd. (Eds.) (1987).

y, J.H. (1993).

nvironmental Protection Agency (1991).

, F.L., and M.R. Ellersieck (1986).

nvironmental Protection Agency (2005).

on, U.W. and M.T. Finley (1980).

acute 

toxicity 

(*)

chronic 

toxicity 

(*)
14

Metals 

One hundred and eight samples were analyzed from nine sites (Figure 1). All of the metal 

concentrations detected were below the appropriate criteria with the exception of one copper and 

two lead values (Table 7). 

The grab sample obtained at the Crawford Canal site during March was the only copper 

exceedance. 

Both of the lead criteria exceedances occurred at the C-19 Canal during the April and June 

sampling events. 
sample number type

start 

time start date

end 

time end date Site

hardness 

mg/L 

CaCo3

Class III drainage basin: sugarcane and citrusP020206-1 G 10:15 2/2/2006 N/A N/A 833-Whidden 36.3 8.3 124.8 1.5 I ≤ 50 0.032 I ≤ 0.0077 ≤ 0.13 - ≤ 1.35 ≤ 103.34 - ≤ 11.27 0.50 ≤ 4

P030206-2 G 10:25 3/2/2006 N/A N/A 833-Whidden 43.8 9.4 148.1 1.5 I ≤ 50 0.034 I ≤ 0.0077 ≤ 0.13 - ≤ 1.54 ≤ 118.86 1.52 ≤ 13.05 0.64 ≤ 5

P033006-4 G 12:15 3/30/2006 N/A N/A 833-Whidden 79.7 8.2 232.8 1.4 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.20 ≤ 172.16 - ≤ 19.20 0.15 I ≤ 9

P042706-5 G 12:55 4/27/2006 N/A N/A 833-Whidden 43.2 10.6 151.5 2.0 I ≤ 50 0.050 I ≤ 0.0077 ≤ 0.13 0.95 I ≤ 1.57 2.1 I ≤ 121.12 1.97 ≤ 13.31 1.2 ≤ 5

P052506-1 G 10:00 5/25/2006 N/A N/A 833-Whidden 43.3 10.9 153.0 2.3 ≤ 50 0.036 I ≤ 0.0077 ≤ 0.13 - ≤ 1.58 1.16 I ≤ 122.09 1.28 ≤ 13.42 0.61 I ≤ 5

P062206-1 G ? 6/22/2006 N/A N/A 833-Whidden 44.6 11.7 159.5 3.3 ≤ 50 0.033 I ≤ 0.0077 ≤ 0.13 0.081 I ≤ 1.64 1.08 I ≤ 126.35 - ≤ 13.91 0.79 I ≤ 5

P072706-1 G 10:20 7/27/2006 N/A N/A 833-Whidden 78.3 7.9 228.0 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.17 0.45 I ≤ 169.29 - ≤ 18.87 - ≤ 9

P091406-2 G 9:20 9/13/2006 N/A N/A 833-Whidden 67.7 6.5 195.8 1.8 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.92 - ≤ 149.43 0.82 ≤ 16.57 0.64 I ≤ 7

P100206-1 G 10:30 10/2/2006 N/A N/A 833-Whidden 64.5 9.3 199.4 2.3 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.95 - ≤ 151.63 - ≤ 16.82 0.34 I ≤ 7

P110206-1 G 10:10 11/2/2006 N/A N/A 833-Whidden 49.2 7.6 154.1 1.8 I ≤ 50 0.024 I ≤ 0.0077 ≤ 0.13 - ≤ 1.59 0.37 I ≤ 122.84 1.07 ≤ 13.50 0.36 I ≤ 5

Class III drainage basin: sugarcaneP013006-3 AS 12:00 1/30/2006 12:03 1/31/2006 C-19 canal 33.5 8.1 117.0 1.7 I ≤ 50 0.047 I ≤ 0.0077 ≤ 0.13 - ≤ 1.28 ≤ 98.01 ≤ 10.67 1.0 ≤ 3

P022806-3 AS 11:35 2/27/2006 10:35 2/28/2006 C-19 canal 42.7 8.9 143.3 1.4 I ≤ 50 0.044 I ≤ 0.0077 ≤ 0.13 - ≤ 1.50 ≤ 115.69 1.19 ≤ 12.68 0.71 ≤ 5

P030106-6 AS 11:06 2/28/2006 10:06 3/1/2006 C-19 canal 41.2 8.8 139.1 1.2 I ≤ 50 0.031 I ≤ 0.0077 ≤ 0.13 - ≤ 1.47 ≤ 112.93 1.31 ≤ 12.37 0.60 ≤ 4

P032806-3 AS 11:30 3/27/2006 12:55 3/28/2006 C-19 canal 47.6 8.0 151.8 1.4 I ≤ 50 - ≤ 0.0077 ≤ 0.13 0.086 I ≤ 1.57 ≤ 121.30 - ≤ 13.33 0.54 ≤ 5

P042606-3 AS 10:30 4/25/2006 9:30 4/26/2006 C-19 canal 47.0 9.2 155.2 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.60 - ≤ 123.55 0.73 ≤ 13.58 0.23 I ≤ 5

P042706-4 AS 10:40 4/26/2006 9:40 4/27/2006 C-19 canal 48.2 9.1 157.8 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.62 1.1 I ≤ 125.23 0.84 I ≤ 13.78 11.3 ≤ 5

P052306-5 AS 10:00 5/22/2006 9:00 5/23/2006 C-19 canal 43.9 10.5 152.9 2.0 I ≤ 50 0.031 I ≤ 0.0077 ≤ 0.13 - ≤ 1.58 0.69 I ≤ 121.99 1.05 ≤ 13.41 0.36 I ≤ 5

P052406-4 AS 11:45 5/23/2006 10:45 5/24/2006 C-19 canal 45.3 10.3 155.5 2.0 I ≤ 50 0.026 I ≤ 0.0077 ≤ 0.13 - ≤ 1.60 0.50 I ≤ 123.74 0.85 ≤ 13.61 0.41 I ≤ 5

P062006-3 AS 9:26 6/19/2006 8:26 6/20/2006 C-19 canal 56.8 9.9 182.6 2.4 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.82 0.88 I ≤ 141.11 0.92 I ≤ 15.61 7.36 ≤ 6

P062106-3 AS 10:30 6/20/2006 9:30 6/21/2006 C-19 canal 53.7 9.7 174.0 2.4 ≤ 50 0.025 I ≤ 0.0077 ≤ 0.13 - ≤ 1.75 0.64 I ≤ 135.67 0.73 I ≤ 14.98 0.27 I ≤ 6

P072506-3 AS 11:15 7/24/2006 11:20 7/25/2006 C-19 canal 78.8 9.7 236.7 2.0 ≤ 50 0.035 I ≤ 0.0077 ≤ 0.13 - ≤ 2.23 0.86 I ≤ 174.54 1.72 ≤ 19.48 - ≤ 9

P072606-3 AS 11:20 7/25/2006 10:37 7/26/2006 C-19 canal 68.9 9.7 212.0 2.4 ≤ 50 0.048 I ≤ 0.0077 ≤ 0.13 - ≤ 2.05 1.70 ≤ 159.46 3.01 ≤ 17.73 - ≤ 8

SD091206-3 AS 10:55 9/12/2006 ? ? C-19 canal 68.3 7.3 200.6 2.4 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.96 - ≤ 152.41 - ≤ 16.91 0.26 I ≤ 7

P091306-5 AS 11:15 9/12/2006 11:45 9/13/2006 C-19 canal 55.2 6.4 164.2 1.8 I ≤ 50 0.027 I ≤ 0.0077 ≤ 0.13 - ≤ 1.67 - ≤ 129.35 0.81 ≤ 14.25 0.28 I ≤ 5

P092606-3 AS 10:50 9/25/2006 10:15 9/26/2006 C-19 canal 53.3 6.4 159.4 2.0 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.64 0.60 I ≤ 126.28 0.80 I ≤ 13.90 0.30 I ≤ 5

P092706-3 AS 10:23 9/26/2006 9:23 9/27/2006 C-19 canal 53.0 6.3 158.3 2.0 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.63 0.52 I ≤ 125.53 - ≤ 13.81 0.25 I ≤ 5

P103106-3 AS 9:51 10/30/2006 10:13 10/31/2006 C-19 canal 43.2 7.5 138.8 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.47 0.53 I ≤ 112.70 0.71 I ≤ 12.34 0.44 I ≤ 4

P110106-3 AS 10:12 10/31/2006 9:12 11/1/2006 C-19 canal 43.5 8.1 142.0 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.49 0.49 I ≤ 114.83 0.66 I ≤ 12.59 0.31 I ≤ 4

P022706- blank BDL 11:30 2/27/2006 N/A N/A C-19 Canal EB - - - ≤ 50 - ≤ 0.0077 ≤ 0.13 - - - 

P052406-5 BDL 11:20 5/23/2006 N/A N/A FIELD BLANK - - - ≤ 50 - ≤ 0.0077 ≤ 0.13 - - - 

P062106-4 BDL 12:40 6/21/2006 N/A N/A EQUIPMENT BLANK 0.087 0.0068 I 0.2 - ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 0.01 0.34 I ≤ 0.63 - ≤ 0.05 - ≤ 0

P091306-2 BDL 9:00 9/12/2006 N/A N/A FIELD BLANK 0 0.012 I 0.0 - ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 0.00 - ≤ 0.17 - ≤ 0.01 - ≤ 0

P092606-4 10:05 9/26/2006 N/A N/A EQUIPMENT BLANK 0.14 0.0079 I 0.4 - ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 0.01 - ≤ 0.90 - ≤ 0.08 0.83 ≤ 0

P110106-4 BDL 10:30 11/1/2006 N/A N/A FIELD BLANK 0 0 0.0 - ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ #NUM! - ≤ #NUM! - ≤ #NUM! - ≤ #

Class III drainage basin: citrus, field crops, and pasturelandP013006-4 G 13:10 1/30/2006 N/A N/A C-3 Canal 52.2 7.9 162.9 1.2 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.66 ≤ 128.50 0.99 I ≤ 14.15 0.30 ≤ 5

P030106-5 G 10:15 3/1/2006 N/A N/A C-3 Canal 84.1 4.9 230.2 0.92 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.18 ≤ 170.58 0.54 I ≤ 19.02 0.077 I ≤ 9

P032806-6 G 11:30 3/28/2006 N/A N/A C-3 Canal 49.4 8.9 160.0 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 0.22 ≤ 1.64 ≤ 126.64 - ≤ 13.94 0.32 ≤ 5

P052306-4 G 10:30 5/23/2006 N/A N/A C-3 Canal 49.2 10.6 166.5 2.0 ≤ 50 0.024 I ≤ 0.0077 ≤ 0.13 - ≤ 1.69 1.03 I ≤ 130.84 1.10 ≤ 14.42 0.44 I ≤ 6

P062006-4 G 11:12 6/20/2006 N/A N/A C-3 Canal 49.8 11.0 169.6 2.7 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.72 1.00 I ≤ 132.86 1.15 I ≤ 14.65 0.27 I ≤ 6

P072606-5 G 13:01 7/26/2006 N/A N/A C-3 Canal 78.2 7.9 227.8 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.17 0.48 I ≤ 169.14 0.30 I ≤ 18.85 - ≤ 9

P091306-4 G ? 9/12/2006 N/A N/A C-3 Canal 71.5 6.4 204.9 2.0 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.99 - ≤ 155.07 0.77 I ≤ 17.22 - ≤ 7

P092606-5 G 11:03 9/26/2006 N/A N/A C-3 Canal 75.3 6.7 215.6 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.07 - ≤ 161.69 - ≤ 17.99 - ≤ 8

P103106-4 G 10:47 10/31/2006 N/A N/A C-3 Canal 71.2 8.3 212.0 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.05 0.46 I ≤ 159.45 0.77 I ≤ 17.73 0.31 I ≤ 8

Class IIIP030206-3 G 12:10 3/2/2006 N/A N/A C43-site 2 42.4 8.7 141.7 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.49 ≤ 114.65 1.26 ≤ 12.57 0.41 ≤ 4

P033006-3 G 10:45 3/30/2006 N/A N/A C43-site 2 45.0 9.4 151.1 1.5 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.57 ≤ 120.83 - ≤ 13.27 0.31 ≤ 5

P042706-3 G 10:50 4/27/2006 N/A N/A C43-site 2 42.1 9.8 145.5 1.9 I ≤ 50 0.056 I ≤ 0.0077 ≤ 0.13 - ≤ 1.52 1.4 I ≤ 117.15 1.22 ≤ 12.85 0.41 ≤ 5

P052506-2 G 11:45 5/23/2006 N/A N/A C43-site 2 46.0 10.7 158.9 2.0 ≤ 50 0.032 I ≤ 0.0077 ≤ 0.13 - ≤ 1.63 ≤ 125.94 1.18 ≤ 13.86 0.30 I ≤ 5

P062206-2 G ? 6/22/2006 N/A N/A C43-site 2 51.6 10.3 171.3 3.0 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.73 0.33 I ≤ 133.90 - ≤ 14.77 - ≤ 6

P072706-2 G 12:13 7/27/2006 N/A N/A C43-site 2 72.5 9.2 218.9 2.2 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.10 - ≤ 163.72 - ≤ 18.22 - ≤ 8

P100206-2 G 12:00 10/2/2006 N/A N/A C43-site 2 68.5 7.1 200.3 2.1 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.96 - ≤ 152.21 - ≤ 16.89 - ≤ 7

P110206-2 G 11:46 11/2/2006 N/A N/A C43-site 2 78.1 8.6 230.4 2.0 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.18 0.41 I ≤ 170.74 1.25 ≤ 19.04 0.23 I ≤ 9

G grabAS autosamplerN/A not applicable- denotes that the result is below the method detection limit (MDL)* results are the average of duplicate samplesI value reported is less than the minimum quantitation limit, and greater than or equal to the minimum detection limitA value reported is the mean of two or more determinations270 ml per hour for 24 hours

beryllium 

μg/L copper μg/L lead μg/L

FAC 

Cla

calc

crite

cadmium 

μg/L

FAC 62-302 

Class I 

criteria μg/L

FAC 62-302 

Class III 

criteria μg/L

calcium 

mg/L

magnesium 

mg/L

FAC 62-302 

Class I/III 

calculated 

criteria μg/L

FAC 62-302 

Class I/III 

calculated 

criteria μg/L

chromium 

μg/L

FAC 62-302 

Class I/III 

calculated 

criteria μg/L

arsenic 

μg/L

FAC 62-302 

Class I/III 

criteria μg/L

Table 7. Summary of analytes (μg/L) above the method detection limit found in suface water samples.

15
sample number type

sta

16

tim

Class IP030206-4 G 13:21 

P033006-1 G 9:30 P042706-1 G 9:11 P052506-3 G 12:58 P062206-4 G ? 

P0727706-4 G 13:17 P100206-3 G 13:00 

P103106-4 G 13:17 Class IP030206-5 G 13:50 P033006-2 G 9:45 

P042706-2 G 9:38 P052506-4 G 13:15 P062206-3 G ? P072706-3 G 12:58 

P100206-4 G 13:20 P110206-3 G 12:55 Class III drainage basin: citrus,P013006-5 G 14:20 P022806-4 G ? P032806-5 G 10:40 

P052306-3 G 9:50 P052406-3 G 10:10 P062006-5 G 11:45 P072606-4 G 12:24 SD091206-3 G 12:30 

P092706-4 G 9:10 P103106-5 G 11:49 Class III drainage basin: resideP013006-2 AS 9:5 P013106-2 AS 10:50 P022806-2 AS 9:4 

P030106-4 AS 9:3 P032806-1 AS 9:3 

P032906-1 AS 9:1 P042606-1 AS 8:4 

P052306-1 AS 8:2 P052406-1 AS 8:4 P062006-1 AS 9:2 P062106-1 AS 8:4 P0725506-1 AS 9:1 

P072606-1 AS 8:3 SD091206-1 AS 8:4 P091306-1 AS 9:0 P092606-1 AS 8:4 P103106-1 AS 8:0 

P110106-1 AS 8:2 Class III drainage basin: citrusP013006-1 AS 8:5 013106-1 AS 10:00 P030106-3 AS 8:5 P030206-1 AS 9:0 

P032806-2 AS 10:15 P032906-2 AS 10:18 P042606-2 AS 9:3 P052306-2 AS 8:5 P052406-2 AS 9:3 

P062006-2 AS 9:5 P062106-2 AS 9:1 P072506-2 AS 10:00 P072606-2 AS 9:2 

P091306-3 AS 9:4 P091406-1 AS 9:2 P092606-2 AS 9:1 P092706-2 AS 9:0 P103106-2 AS 8:3 

P110106-2 AS 8:5 G grabAS autosamplerN/A not applicable- denotes that the result is bel* results are the average of duplI value reported is less than the A value reported is the mean of270 ml per hour for 24 hours

Table 7. (cont.) Summary

rt 

e start date

end 

time end date Site

hardness 

mg/L 

CaCo3

3/2/2006 N/A N/A C43-site 4 45.7 9.1 151.6 1.5 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.57 ≤ 121.16 1.36 ≤ 13.31 0.30 I ≤ 5.40 

3/30/2006 N/A N/A C43-site 4 46.5 9.7 156.1 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.61 ≤ 124.08 - ≤ 13.65 0.23 I ≤ 5.61 

4/27/2006 N/A N/A C43-site 4 45.2 9.9 153.6 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.59 1.2 I ≤ 122.50 1.34 ≤ 13.46 0.28 I ≤ 5.50 

5/25/2006 N/A N/A C43-site 4 47.0 10.6 161.0 2.2 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.65 0.96 I ≤ 127.30 1.22 ≤ 14.01 0.24 I ≤ 5.83 

6/22/2006 N/A N/A C43-site 4 55.4 11.3 184.9 3.1 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.84 ≤ 142.55 - ≤ 15.77 - ≤ 6.96 

7/27/2006 N/A N/A C43-site 4 66.7 A 9.8 A 206.9 2.6 A ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.01 0.32 I ≤ 156.32 - ≤ 17.36 - ≤ 8.03 

10/2/2006 N/A N/A C43-site 4 62.2 7.2 185.0 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.84 - ≤ 142.61 - ≤ 15.78 - ≤ 6.96 

11/2/2006 N/A N/A C43-site 4 79.4 10.6 241.9 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.27 - ≤ 177.67 1.45 ≤ 19.85 - ≤ 9.80 

3/2/2006 N/A N/A C43-site 5 49.1 9.7 162.5 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.66 ≤ 128.29 1.43 ≤ 14.13 0.28 I ≤ 5.91 

3/30/2006 N/A N/A C43-site 5 43.4 9.2 146.3 1.5 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.53 ≤ 117.66 - ≤ 12.91 0.29 I ≤ 5.16 

4/27/2006 N/A N/A C43-site 5 45.4 9.9 154.1 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.59 1.3 I ≤ 122.83 1.29 ≤ 13.50 0.28 I ≤ 5.52 

5/25/2006 N/A N/A C43-site 5 48.1 10.7 164.2 2.1 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.67 0.66 I ≤ 129.34 1.26 ≤ 14.25 - ≤ 5.98 

6/22/2006 N/A N/A C43-site 5 54.1 11.0 180.4 2.9 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.80 ≤ 139.71 - ≤ 15.44 - ≤ 6.74 

7/27/2006 N/A N/A C43-site 5 66.4 9.9 206.6 2.6 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.00 0.32 I ≤ 156.11 - ≤ 17.34 - ≤ 8.01 

10/2/2006 N/A N/A C43-site 5 61.4 7.1 182.6 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.82 0.39 I ≤ 141.09 - ≤ 15.60 - ≤ 6.85 

11/2/2006 N/A N/A C43-site 5 76.7 11.0 236.8 1.8 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.23 0.34 I ≤ 174.60 1.54 ≤ 19.49 - ≤ 9.53 

 field crops, and pastureland

1/30/2006 N/A N/A Crawford Canal 59.1 9.9 188.3 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.86 ≤ 144.74 3.28 ≤ 16.02 0.18 I ≤ 7.12 

2/28/2006 N/A N/A Crawford Canal 62.1 A 10.6 A 198.7 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.94 ≤ 151.24 2.93 A ≤ 16.78 0.13 I ≤ 7.63 

3/28/2006 N/A N/A Crawford Canal 61.5 11.5 200.9 1.8 I ≤ 50 - ≤ 0.0077 ≤ 0.13 0.12 I ≤ 1.96 ≤ 152.61 22 ≤ 16.93 0.18 I ≤ 7.73 

5/23/2006 N/A N/A Crawford Canal 64.1 12.1 209.9 2.5 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.03 0.53 I ≤ 158.16 3.04 ≤ 17.58 - ≤ 8.18 

5/??/06 N/A N/A Crawford Canal 60.7 12.0 201.0 2.3 ≤ 50 - ≤ 0.0077 ≤ 0.13 0.051 I ≤ 1.96 0.46 I ≤ 152.65 2.62 ≤ 16.94 - ≤ 7.74 

6/20/2006 N/A N/A Crawford Canal 76.7 13.3 246.3 3.6 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.30 0.63 I ≤ 180.30 2.97 ≤ 20.15 - ≤ 10.02 

7/26/2006 N/A N/A Crawford Canal 84.1 11.9 259.0 2.9 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.39 0.47 I ≤ 187.89 4.28 ≤ 21.04 - ≤ 10.69 

9/12/2006 N/A N/A Crawford Canal 69.4 8.3 207.5 3.1 ≤ 50 0.027 I ≤ 0.0077 ≤ 0.13 - ≤ 2.01 0.85 I ≤ 156.67 - ≤ 17.40 0.34 I ≤ 8.06 

9/27/2006 N/A N/A Crawford Canal 78.0 9.7 234.7 2.6 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.22 0.35 I ≤ 173.33 4.40 ≤ 19.34 0.25 I ≤ 9.43 

10/31/2006 N/A N/A Crawford Canal 77.4 10.8 237.7 2.1 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.24 - ≤ 175.16 3.75 ≤ 19.55 - ≤ 9.58 

ntial

0 1/30/2006 9:53 1/31/2006 Hickey Creek 80.4 A 11.7 A 248.9 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.32 ≤ 181.89 n/a ≤ 20.34 0.12 I ≤ 10.16 

1/31/2006 9:52 2/1/2006 Hickey Creek 77.1 11.6 240.3 1.2 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.26 ≤ 176.69 - ≤ 19.73 0.10 I ≤ 9.71 

0 2/27/2006 8:40 2/28/2006 Hickey Creek 78.6 12.0 245.7 1.3 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.30 ≤ 179.94 0.70 I ≤ 20.11 0.10 I ≤ 9.99 0 2/28/2006 8:30 3/1/2006 Hickey Creek 69.3 11.2 219.2 1.5 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.10 ≤ 163.87 0.87 I ≤ 18.24 0.13 I ≤ 8.64 

5 3/27/2006 8:50 3/28/2006 Hickey Creek 49.2 9.7 162.8 1.7 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.66 ≤ 128.45 - ≤ 14.15 0.31 ≤ 5.92 

0 3/28/2006 9:00 3/29/2006 Hickey Creek 54.6 10.5 179.6 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.80 ≤ 139.20 - ≤ 15.38 0.23 I ≤ 6.70 

1 4/25/2006 7:41 4/26/2006 Hickey Creek 58.1 11.5 192.4 2.2 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.90 U ≤ 147.31 0.96 I ≤ 16.32 0.16 I ≤ 7.32 

0 5/22/2006 7:20 5/23/2006 Hickey Creek 50.4 11.1 171.6 2.4 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.73 0.89 I ≤ 134.09 1.07 ≤ 14.80 - ≤ 6.32 

5 5/23/2006 7:45 5/24/2006 Hickey Creek 55.2 12.0 187.3 2.7 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.86 U ≤ 144.05 0.96 ≤ 15.94 - ≤ 7.07 

6 6/19/2006 8:26 6/20/2006 Hickey Creek 53.9 11.9 183.6 3.5 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.83 0.49 I ≤ 141.74 1.40 I ≤ 15.68 - ≤ 6.89 

0 6/20/2006 7:40 6/21/2006 Hickey Creek 52.9 11.5 179.4 3.0 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.80 0.43 I ≤ 139.12 1.47 ≤ 15.38 - ≤ 6.70 

5 7/24/2006 8:29 7/25/2006 Hickey Creek 76.7 10 232.7 2.7 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.20 0.32 I ≤ 172.11 0.45 I ≤ 19.20 - ≤ 9.32 0 7/25/2006 8:47 7/26/2006 Hickey Creek 81.1 10.4 245.3 2.6 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.29 0.81 I ≤ 179.73 0.69 I ≤ 20.09 - ≤ 9.97 

5 9/11/2006 8:45 9/12/2006 Hickey Creek 83.5 10.7 252.6 3.5 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.35 - ≤ 184.05 - ≤ 20.59 - ≤ 10.35 

0 9/12/2006 8:30 9/13/2006 Hickey Creek 84.3 10.5 253.7 4.4 ≤ 50 0.058 I ≤ 0.0077 ≤ 0.13 - ≤ 2.36 2.55 I ≤ 184.75 1.14 ≤ 20.67 0.78 I ≤ 10.41 

0 9/25/2006 8:10 9/26/2006 Hickey Creek 94.6 11.3 282.7 2.6 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.57 - ≤ 201.88 - ≤ 22.68 - ≤ 11.95 

5 10/30/2006 8:15 10/31/2006 Hickey Creek 79.1 11.1 243.2 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.28 0.40 I ≤ 178.46 1.34 ≤ 19.94 - ≤ 9.86 

2 10/31/2006 7:22 11/1/2006 Hickey Creek 80.4 11.2 246.9 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.31 - ≤ 180.66 0.81 ≤ 20.19 - ≤ 10.05 1 1/30/2006 8:53 1/31/2006 Townsend Canal 49.6 9.5 163.0 2.4 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.66 ≤ 128.57 n/a ≤ 14.16 0.38 ≤ 5.92 

1/31/2006 9:02 2/1/2006 Townsend Canal 46.9 9.0 154.2 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.59 ≤ 122.85 - ≤ 13.50 0.36 ≤ 5.52 

3 2/28/2006 7:53 3/1/2006 Townsend Canal 44.0 9.0 146.9 1.3 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.53 ≤ 118.11 1.23 ≤ 12.96 0.46 ≤ 5.19 

0 3/1/2006 8:00 3/2/2006 Townsend Canal 45.6 9.1 151.3 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.57 ≤ 121.00 1.38 ≤ 13.29 0.33 ≤ 5.39 

3/27/2006 10:10 3/28/2006 Townsend Canal 49.5 9.6 163.1 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 0.050 I ≤ 1.67 ≤ 128.67 - ≤ 14.17 0.27 I ≤ 5.93 

3/28/2006 9:40 3/29/2006 Townsend Canal 46.4 9.6 155.4 1.6 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.60 ≤ 123.65 - ≤ 13.60 0.28 I ≤ 5.58 

7 4/25/2006 8:37 4/26/2006 Townsend Canal 43.9 9.8 150.0 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.56 1.3 I ≤ 120.11 1.23 ≤ 13.19 0.28 I ≤ 5.33 

0 5/22/2006 7:50 5/23/2006 Townsend Canal 45.1 10.4 155.4 2.2 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.60 0.76 I ≤ 123.68 1.26 ≤ 13.60 0.28 I ≤ 5.58 

0 5/23/2006 8:30 5/24/2006 Townsend Canal 46.4 10.5 159.1 2.6 ≤ 50 0.025 I ≤ 0.0077 ≤ 0.13 0.054 I ≤ 1.63 0.88 I ≤ 126.06 1.66 ≤ 13.87 0.34 I ≤ 5.75 5 6/19/2006 8:55 6/20/2006 Townsend Canal 53.5 10.8 178.1 3.0 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.78 0.45 I ≤ 138.24 1.47 I ≤ 15.27 - ≤ 6.63 

5 6/20/2006 8:15 6/21/2006 Townsend Canal 52.5 A 10.5 A 174.3 3.0 A ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.75 0.38 I ≤ 135.86 1.25 A ≤ 15.00 - ≤ 6.46 

7/24/2006 9:20 7/25/2006 Townsend Canal 63.1 9.3 195.9 3.5 ≤ 50 - ≤ 0.0077 ≤ 0.13 0.067 I ≤ 1.92 0.67 I ≤ 149.45 7.80 ≤ 16.57 - ≤ 7.49 

1 7/25/2006 9:23 7/26/2006 Townsend Canal 69.6 10 215.0 3.8 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.07 0.37 I ≤ 161.30 6.04 ≤ 17.94 - ≤ 8.43 

3 9/12/2006 9:00 9/13/2006 Townsend Canal 65.3 9.1 200.5 3.2 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.96 - ≤ 152.37 3.40 ≤ 16.91 0.26 I ≤ 7.71 

0 9/13/2006 8:20 9/14/2006 Townsend Canal 59.1 8.3 181.8 5.4 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.81 - ≤ 140.58 5.02 ≤ 15.54 - ≤ 6.81 

5 9/25/2006 8:47 9/26/2006 Townsend Canal 74.5 10.0 227.2 2.7 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.16 0.41 I ≤ 168.78 1.77 I ≤ 18.81 - ≤ 9.04 

0 9/26/2006 8:00 9/27/2006 Townsend Canal 63.0 7.5 188.2 2.2 ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 1.86 0.33 I ≤ 144.65 1.28 I ≤ 16.01 - ≤ 7.12 

6 10/30/2006 8:49 10/31/2006 Townsend Canal 74.4 9.5 224.9 1.8 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.14 0.39 I ≤ 167.37 1.53 ≤ 18.65 - ≤ 8.93 7 10/31/2006 7:57 11/1/2006 Townsend Canal 76.1 9.8 230.4 1.9 I ≤ 50 - ≤ 0.0077 ≤ 0.13 - ≤ 2.18 0.65 I ≤ 170.70 1.58 ≤ 19.03 - ≤ 9.21 

ow the method detection limit (MDL)

icate samples

minimum quantitation limit, and greater than or equal to the minimum detection limit

 two or more determinations

FAC 62-302 

Class I/III 

calculated 

criteria μg/L copper μg/L

FAC 62-302 

Class I/III 

calculated 

criteria μg/L

FAC 62-302 

Class I 

criteria μg/L

FAC 62-302 

Class III 

criteria μg/L lead μg/L

FAC 62-

Class I

calculat

criteria μ

calcium 

mg/L

 of analytes (μg/L) above the method detection limit found in suface water samples.

cadmium 

μg/L

FAC 62-302 

Class I/III 

calculated 

criteria μg/L

magnesium 

mg/L

arsenic 

μg/L

FAC 62-302 

Class I/III 

criteria μg/L

beryllium 

μg/L

chromium 

μg/L
17

Glossary 

LD50: The dosage which is lethal to 50 percent of the terrestrial animals tested within a 

short (acute) exposure period, usually 24 to 96 hours. 

LC50: A concentration which is lethal to 50 percent of the aquatic animals tested within 

a short (acute) exposure period, usually 24 to 96 hours. 

EC50: A concentration necessary for 50 percent of the aquatic species tested to exhibit a 

toxic effect short of mortality (e.g., swimming on side or upside down, cessation 

of swimming) within a short (acute) exposure period, usually 24 to 96 hours. 

Koc: The soil/sediment partition or sorption coefficient normalized to the fraction of 

organic carbon in the soil. This value provides an indication of the chemical’s 

tendency to partition between soil organic carbon and water. 

Bioconcentration Factor: 

The ratio of the concentration of a contaminant in an aquatic organism to the 

concentration in water, after a specified period of exposure via water only. The 

duration of exposure should be sufficient to achieve a near steady-state condition. 

Soil or water half-life: 

The time required for one-half the concentration of the compound to be lost from 

the water or soil under the conditions of the test. 

Method Detection Limits (MDLs): 

 The minimum concentration of an analyte that can be detected with 99 percent 

confidence of its presence in the sample matrix. 

Practical Quantitation Limits (PQLs): 

 The lowest level of quantitation that can be reliably achieved within specified 

limit of precision and accuracy during routine laboratory operating conditions. 

The PQL is further verified by analyzing spike concentrations whose relative 

standard deviation in 20 fortified water samples is < 15 percent. In general, the 

PQL is 2 to 5 times larger than the MDL. 
18

References

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Database: II Using It With Soils Data In A Screening Procedure. Soil Conservation 

Service. Fort Worth, TX. 

Hartley, D. and H. Kidd. (Eds.) (1987). The Agrochemicals Handbook. Second Edition, 

The Royal Society of Chemistry. Nottingham, England. 

Johnson, W.W. and M.T. Finley. (1980). Handbook of Acute Toxicity of Chemicals to 

Fish and Aquatic Invertebrates. U.S. Department of the Interior, Fish and Wildlife 

Service Resource Publication 137. Washington, DC. 

Lyman, W.J., W.F. Reehl, and D.H. Rosenblatt. (1990). Handbook of Chemical Property 

Estimation Methods. American Chemical Society, Washington, DC. 

Mayer, F.L. and M.R. Ellersieck. (1986) Manual of Acute Toxicity: Interpretation and 

Database for 410 Chemicals and 66 Species of Freshwater Animals. United States Fish 

and Wildlife Service, Publication No. 160. 

Montgomery, J.H. (1993). Agrochemicals Desk Reference: Environmental Data. Lewis 

Publishers. Chelsa, MI. 

United States Environmental Protection Agency (1984). Chemical Fact Sheet for 

Simazine. March, 1984. 

_____ (1988). Chemical Fact Sheet for Hexazinone. September, 1988. 

_____ (1991). Pesticide Ecological Effects Database, Ecological Effects Branch, Office 

of Pesticide Programs, Washington, DC. 

_____ (1996). Drinking Water Regulations and Health Advisories. Office of Water. EPA 

822-B-96-002. 

_____ (2003). Ambient Aquatic Life Water Criteria for Atrazine. Revised Draft EPA822-R-03-023. October 2003. 

_____ (2005). Aldicarb Ecological Risk Assessment. May 31, 2005. 

Verschueren, K. (1983). Handbook of Environmental Data on Organic Chemicals. 

Second Edition, Van Nostrand Reinhold Co. Inc. New York, NY