The Power of Information

National Drinking Water Database

City of North Platte Utilities - North Platte, NE

Serves 25,000 people

Fonofos (dyfonate)

Fonofos is an insecticide used on corn, commercial and home lawns.
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
30 days
Tests ConductedNumber of individual tests done for this contaminant
177 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Fonofos (dyfonate)Fonofos is an insecticide used on corn, commercial and home lawns.0 ppb
0 ppb
10 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Fonofos (dyfonate)

Health Based Limits for Fonofos (dyfonate)

Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.10 ppb

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2008-10-290 ppb880 ppb
2008-08-260 ppb880 ppb
2008-04-280 ppb220 ppb
2008-04-210 ppb880 ppb
2008-03-250 ppb220 ppb
2008-03-110 ppb440 ppb
2008-03-100 ppb440 ppb
2007-11-270 ppb880 ppb
2007-07-300 ppb880 ppb
2007-04-300 ppb220 ppb
2007-04-160 ppb880 ppb
2007-03-070 ppb880 ppb
2007-01-300 ppb220 ppb
2006-11-270 ppb880 ppb
2006-09-200 ppb14140 ppb
2006-08-210 ppb880 ppb
2006-05-310 ppb24240 ppb
2006-02-280 ppb220 ppb
2006-01-230 ppb880 ppb
2005-10-310 ppb440 ppb
2005-07-250 ppb440 ppb
2005-05-230 ppb110 ppb
2005-05-090 ppb440 ppb
2005-01-100 ppb550 ppb
2004-10-200 ppb550 ppb
2004-07-210 ppb550 ppb
2004-06-290 ppb110 ppb
2004-04-140 ppb770 ppb
2004-02-040 ppb110 ppb
2004-02-020 ppb440 ppb